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Electrocardiography & Cardiac Imaging
Estimation of Heart Rate from the Electrocardiogram (ECG)
Valsalva Ratio
Expiration-Inspiration Ratio
The 30:15 Ratio and the Response to Standing
QRS Scoring System in Acute Myocardial Infarction
The Selvester Complete 32-Point QRS Scoring System
Cardiac Infarction Injury Score
Initial Electrocardiogram and Short Term Risk after Acute Myocardial Infarction
Size of Acute Anterior or Inferior Myocardial Infarcts Estimated from Initial ST-Segment Deviation (Aldrich Scores)
Probability of Acute Myocardial Infarction in the Presence of Left Bundle Branch Block Using the Criteria of Sgarbossa et al
Revised Instrument of Pozen et al for Predicting Probability of Acute Myocardial Infarction
Prognostic Table of Savonitto et al for a Patient with Acute Coronary Syndrome Based on the Admission Electrocardiogram and Serum Creatine Kinase Concentration
Clinical Prediction Rule of Silver et al for Predicting a Preserved Left Ventricular Ejection Fraction After Myocardial Infarction
Risk Factors of Barrebes et al for In Hospital Mortality After a First Non-ST Segment Elevation Acute Myocardial Infarction
Extent of Myocardial Injury Based on the Number of ECG Leads Showing ST Segment Elevation
Analysis of Holmvang et al of the Admission ECG in Patients with a Non-ST Segment Elevation Acute Coronary Syndrome (ACS)
Risk Assessment Scheme of Ellis et al for Outcome After Percutaneous Coronary Intervention (PCI)
CART ECG Algorithms of Lehmann et al for Identifying the Occluded Artery in a Patient with an Acute Myocardial Infarction
Prognostic Model of Skali et al Using Echocardiography 1 Year After a Myocardial Infarction
Predictors of Cheneau et al for Subacute Stent Thrombosis Identified with Intravascular Ultrasound (IVUS)
The Ratio of T to QRS Amplitudes for Distinguishing an Anterior Myocardial Infarction from a Left Ventricular Aneurysm
Criteria of Owens and O'Brien for a Hypotension-Induced Ischemic (HII) Event
Algorithm of Tierala et al for Predicting the Culprit Artery in Acute Inferior ST-Elevation Myocardial Infarction (STEMI)
Screening Criteria of Anderson et al for Separating Anterior and Inferior Myocardial Infarcts
Electrocardiographic Findings of Nikus et al Associated with Left Main or Severe Triple Vessel Disease in a Patient with Acute Coronary Syndrome
Fragmented Wide QRS
Predictors of Kosuge et al for Left Main or 3-Vessel Coronary Artery Disease in a Patient with Non-ST-Segment Elevation Acute Coronary Syndrome
Criteria of Warner et al for an Acute Inferior Myocardial Infarction
Tetrad of Wong et al for Isolated Right Atrial Infarction
Criteria of Liu et al for Atrial Infarction
Wellens Syndrome (Left Anterior Descending Coronary T Wave Syndrome)
ECG Changes of Kurisu et al Associated with 30-Day Mortality in a Patient with Acute Myocardial Infarction Following Occlusion of the Left Main Coronary Artery (LMCA)
Predictive Instrument of Wei et al for Evaluating a Patient in the Emergency Room with Chest Pain
ECG Predictors of Engelen et al for the Site of Occlusion in the Left Anterior Descending (LAD) Artery in a Patient with an Anterior Acute Myocardial Infarction
Echocardiographic Risk Factors of Carasso for 30-Day Mortality Following an Acute Myocardial Infarction (AMI)
ECG Criteria of Towbin et al for Acute Myocardial Infarction in a Pediatric Patient
Criteria of de Luna et al for Pathologic R Waves in Leads V1 and V2 Associated with a Lateral Myocardial Infarction
ECG Findings of Kurisu et al Associated with Mortality Following Acute Myocardial Infarction Associated with the Left Main Coronary Artery
iMUTE Score of Xu et al for Intravascular Ultrasound (IVUS) Study Following Placement of a Drug-Eluting Stent (DES)
Prognostic Echocardiographic Measures of Iwahashi et al at Two Weeks Following a First Time ST Elevation Myocardial Infarction
Thrombolytic Predictive Instrument of Selker et al for Cardiac Arrest After Acute Myocardial Infarction
Thrombolytic Predictive Instrument of Selker et al for 30-Day Mortality After Acute Myocardial Infarction
Thrombolytic Predictive Instrument of Selker et al for 1 Year Mortality After Acute Myocardial Infarction
Model of Schroder et al for Prediction of Mortality Risk Using ECG Findings 90 Minutes After Thrombolysis
Noninvasive Scoring System of Bossaert et al for Assessment of Reperfusion After Thrombolysis
Method of Bossaert et al for Assessment of Reperfusion Based on Summation of the Total ST Segment Elevation
Criteria of van't Hof for Normalization of ST Segment Elevation After Primary Angioplasty in a Patient with Acute Myocardial Infarction
Criteria of Johanson et al for ST-Segment Resolution Following an Acute Myocardial Infarction
Romhilt-Estes Point Scoring System for Left Ventricular Hypertrophy
Criteria of Sokolow and Lyon for Left Ventricular Hypertrophy
Criteria of Casale et al for Left Ventricular Hypertrophy (Cornell Criteria)
Criteria of Klein et al for Left Ventricular Hypertrophy in the Presence of Left Bundle Branch Block
Cornell/Strain (C/S) Index of Verdecchia et al for Identifying Left Ventricular Hyperplasia in a Hypertensive Patient
Perugia Score for Detecting Left Ventricular Hypertrophy in a Patient with Essential Hypertension
Criteria of Gubner and Ungerleider for Left Ventricular Hypertrophy
Cornell Product (Cornell Voltage Product)
Equation of Norman and Levy for Adjusting the Cornell Voltage
Equation of Norman and Levy for Adjusting the Cornell Voltage Product
Butler-Leggett Criteria for Right Ventricular Hypertrophy due to Mitral Stenosis
Criteria of Sokolow and Lyon for Right Ventricular Hypertrophy
Criteria of the World Health Organization (WHO) for Right Ventricular Hypertrophy
Criteria of Louridas et al for Right Ventricular Hypertrophy
Criteria for Left Atrial Enlargement
Criteria for Right Atrial Enlargement
Criteria for Bilateral Atrial (Bi-Atrial) Enlargement
Equations of Birkbeck et al for Estimating Left Atrial Volume Using Features of the P Wave in Lead II
Equation of Ariyarajah et al for Estimating Left Atrial Volume Based on P Wave Duration
Method of Brugada et al for the Diagnosis of Regular Tachycardia with a Wide QRS Complex
Algorithm of Vereckei et al for Evaluating a Patient with Wide QRS Complex Tachycardia
ECG Changes in Cardiac Amyloidosis
Doppler Index of Tei et al for Cardiac Amyloidosis and Other Cardiomyopathies
ECG and Imaging Findings of Shah et al in Cardiac Amyloidosis
Score of Bellavia et al for Predicting Survival for a Patient with Primary Systemic (AL) Amyloidosis
Lown's System for Grading Ventricular Premature Beats
Classification By Myerburg et al of Ventricular Arrhythmias Based on Frequency and Form
Arrhythmia-Severity Index of Mason and Winkle for a Patient with a Ventricular Tachyarrhythmia
Criteria of Velebit et al for Drug-Induced Aggravation of Ventricular Arrhythmias
Algorithm of Miller et al for Identifying the Endocardial Site of Origin for Infarct-Associated Ventricular Tachycardia
Peak Deflection Index (PDI) for Identifying a Patient with Outflow Tract Ventricular Tachycardia Who Is Likely to Fail Radiofrequency Catheter Ablation
Prognostic Factors of Song et al for Pediatric Ventricular Tachycardia
Electrocardiographic Features of a Pericardial Effusion
Stages of Electrocardiographic (ECG) Evolution in a Patient with Acute Pericarditis
Criteria of Bommer et al for Detecting Pericardial Tamponade Following Cardiac Surgery
Echocardiographic Grading the Size of a Pericardial Effusion
Distinguishing Ascites from Pericardial Fluid on Echocardiography
The Algorithm of Milstein et al for Localizing Accessory Pathways
Criteria for Emphysema of Selvester and Rubin
Electrocardiographic Pentalogy of Wasserburger et al for Pulmonary Emphysema
ECG Score of Daniel et al for Cardiac Stress After Massive Pulmonary Embolism
Electrocardiographic Findings of Bossone et al with Prognostic Significance for a Patient with Primary Pulmonary Hypertension (PPH)
Echocardiographic Predictors of Raymond et al for a Poor Prognosis for a Patient with Primary Pulmonary Hypertension
Model of Bircan et al for Identifying a Patient with a Severe Pulmonary Embolism
Equation of Steckelberg et al for Predicting Mean Pulmonary Artery Pressure (MPAP) from Peak Pulmonary Artery Systolic Pressure (PASP)
Calculating the Limb Leads When Only Two Are Known
Algorithm for Determining the Location of AV Block
Grading Atrioventricular Block
Electrocardiographic Features of Right Bundle Branch Block (RBBB)
Electrocardiographic Features of Left Bundle Branch Block (LBBB)
Electrocardiographic Features of a Left Anterior-Superior Fascicular Block
Electrocardiographic Features of a Left Posterior-Inferior Fascicular Block
Causes of Congenital Complete Atrioventricular Block (CCAVB)
Risk Factors of Berdajs et al for Atrioventricular Block Following Mitral Valve Replacement and Mitral Valve Annuloplasty
Evaluation of a Patient with Incidental Bundle Branch Block (BBB)
The QRS Electrical Axis in the Frontal Plane
The QRS Electrical Axis in the Horizontal Plane
P Wave Initial and Terminal Force
ECG Diagnosis of Tricyclic Antidepressant Cardiotoxicity
ECG Changes in Carbon Monoxide (CO) Poisoning
ECG Changes in Arsenic Poisoning
ECG Changes Associated with Arsenic Trioxide Therapy
Calculating the Vectorcardiography Leads from the 12 Lead ECG in Adults Using the Matrix Inversion (Inverse Dower) Technique
Calculating the Vectorcardiography Leads from the 12 Lead ECG in Pediatric Patients Using the Matrix Inversion (Inverse Dower) Technique
Severity of Valve Stenosis (Modified Bernoulli Equation) by Doppler Echocardiography
Aortic Valve Area in Stenosis by Doppler Echocardiography
Mitral Valve Area in Stenosis by Doppler Echocardiography
Estimation of the Right Ventricular Systolic Pressure in Patients with Tricuspid Regurgitation Using Doppler Echocardiography
Determining the Severity of Mitral Stenosis Using Doppler Echocardiography
Classification of Rao et al for Pulmonic Valve Insufficiency Based on Doppler Echocardiography
Mitral Regurgitation Index (MRI) of Thomas et al for Evaluating the Severity of Mitral Regurgitation
Echocardiographic Score of Shiina et al for Evaluating a Patient with Ebstein's Anomaly of the Tricuspid Valve
Criteria of Greaves et al for the Use of Transthoracic Echocardiography to Exclude Infective Endocarditis
Echocardiographic Criteria of Zoghbi et al for Grading Native Pulmonic Valve Regurgitation
Echocardiographic Criteria of Zoghbi et al for Grading Native Mitral Valve Regurgitation
Semiquantitative Valvular Calcification Score of Schaefer et al
Tricuspid Regurgitation to Right Atrial Area Ratio (TR/RA)
Estimating the Pulmonary Artery Systolic Pressure (PASP) from the Tricuspid Regurgitant (TR) Jet Velocity on Echocardiography
Risk Factors of Morris et al for an Elevated Tricuspid Valve Regurgitant Jet Velocity in a Patient with Thalassemia
Predicting the Pulmonary Regurgitation Fraction in a Patient with Surgically-Repaired Tetralogy of Fallot Using the PRIME Method of Festa et al.
Prognostic Factors of Arias et al for a Patient with Moderate to Severe Organic Mitral Regurgitation
Estimating Stroke Volume and Cardiac Output Based on Doppler Echocardiography of the Proximal Aorta
Equation of Popp and Harrison from Determining Stroke Volume By Doppler Echocardiography of the Left Ventricle
Contraindications to Transesophageal Echocardiography
Indications for Transesophageal Echocardiography in the Evaluation of the Aorta in Trauma Patients
Grading a Patent Foramen Ovale (PFO) Using Contrast Microbubbles
Pulsed Wave Doppler Indices in Transesophageal Echocardiography Associated with the Pulmonary Artery Occlusion Pressure in a Ventilated Patient
Doppler Tissue Imaging and Color Doppler Indices in Transesophageal Echocardiography Associated with the Pulmonary Artery Occlusion Pressure in a Ventilated Patient
Effect of Hypokalemia and Hyperkalemia on the Electrocardiogram
Effect of Hypocalcemia on the Electrocardiogram
Effect of Hypercalcemia on the Electrocardiogram
Effect of Hypomagnesemia on the Electrocardiogram
Effects of Mixed Electrolyte Changes on the Electrocardiogram
Coronary Calcium Score of Agatston et al Using Electron Beam Computed Tomography
Noninvasive Index (NI) of Schmermund et al for Identification of Patients with Obstructive Three Vessel and/or Left Main Coronary Artery Disease
Detection of Anomalous Origin of a Coronary Artery in a Young Athlete with Syncope Using Transthoracic Echocardiography
Veterans Affairs Prognostic Score
Duke Treadmill Exercise Test of Mark et al
The Long Beach and Palo Alto Veteran Administration (LB-PA VA) Equation for Probability of Coronary Artery Disease
Equation of Detrano et al for Predicting Coronary Artery Disease in Patients Having Exercise Testing
The Chronotropic Index
Logistic Prediction Model of Morise et al from 1996 for Probability of Coronary Artery Disease
The ST Segment to Heart Rate Index (ST/HR Index) or the Heart Rate-Adjusted ST
Prognostic Score of Shetler et al Using Heart Rate Recovery After Exercise Testing
Simple Treadmill Score of Raxwal et al for Diagnosing Coronary Artery Disease in Men
Model of Lee et al for Predicting Left Main Coronary Artery Disease in a Patient Undergoing Exercise Testing
Model of Pruvost et al for Predicting Coronary Artery Disease in a Patient Undergoing Exercise Testing
Logistic Prediction Model of Robert et al for Probability of Coronary Artery Disease in a Woman Undergoing Exercise Testing
Score of Marwick et al for Predicting the Risk of a Major Cardiovascular Event After a Dobutamine Stress Echocardiogram
Stress Recovery Index (SRI) for Identifying Multivessel Coronary Artery Disease During Exercise Testing Following an Acute Myocardial Infarction
V-Slope Method of Beaver et al for Identifying the Anaerobic Threshold During Exercise Testing
Prognostic Factors of Gitt et al for Patients with Heart Failure Identified During Exercise Testing
Heart Rate Profile of Joucen et al for Identifying a Patient at Risk for Sudden Death
Model of Lauer et at for Long-Term Survival After Exercise Treadmill Testing in a Patient with a Normal ECG and Suspected Coronary Artery Disease
Exercise-Induced Ventricular Arrhythmias (EIVA)
Hump Sign in the ST-Segment During Exercise Testing
Appropriateness of Stress Echocardiography in a Patient with a Prior Stress Imaging or Coronary Angiogram Test Result
Appropriateness of Stress Echocardiography in a Patient Postrevascularization
Prognostic Signifcance of Wall Motion Abnormalities (WMA) During Exercise Echocardiography Based on the Study of Elhendy et al.
Bazett’s Formula for Correction of the Q-T Interval for Heart Rate (QTc)
QT Dispersion
Formula of Hodges et al for Correction of the Q-T Interval for Heart Rate (QTm)
Relative Change in QT Dispersion
The 1985 Diagnostic Criteria of Schwartz for the Long QT Syndrome
The 1993 Diagnostic Criteria of Schwartz et al for the Long QT Syndrome
Risk Stratification Scheme of Priori et al for Patients with the Long QT Syndrome
Model of Hobbs et al for Aborted Cardiac Arrest or Sudden Cardiac Death in an Adolescent with the Long QT Syndrome
Risk Factors for Torsade de Pointes in Patients Taking a Drug That Prolongs the QT Interval
Algorithm of Krantz et al for Managing a Patient Taking Methadone with a Prolonged QTc Interval
Criteria of Shah for Identifying a Drug That May Cause Drug-Induced Prolongation of the QT Interval
Recommendations of Tisdale for Avoiding Drug-Induced Torsades de Pointes
Risk Stratification in Patients with Brugada Syndrome
Short QT Syndrome
Risk Factors of Elkins et al for Cardiac Morbidity After Transient Ischemic Attack (TIA) Based on ECG Changes
Identifying a Patient with a History of Stroke Who Is at Risk for Cardiac Death Using a Long QTc
Electrocardiographic Changes in Subarachnoid Hemorrhage
Electrocardiographic Changes Associated with Arrhythmic Syncope
Indications for a Permanent Implantable Pacemaker in an Adult with Acquired Atrioventricular Block
The Pacemaker Syndrome
Risk Score of Koplan et al for Needing a Permanent Pacemaker After Cardiac Valve Surgery
NASPE/BPEG Codes for Implantable Defibrillators
NASPE/BPEG Generic (NBG) Pacemaker Code
Study of Bode-Schnurbus et al Using QRS Duration to Predict Mortality Risk in a Patient with an ICD and Heart Failure
Algorithm of Ammann et al for Detecting the Loss of Left Ventricular Capture During Cardiac Resynchronization Therapy
Twiddler Syndrome
Conditions Associated with an Appropriate or Inappropriate Shock from an Implantable Cardioverter-Defibrillator
Algorithm of Gehi et al for Management of a Patient Who Has Had Discharge of an Implantable Cardioverter-Defibrillator (ICD)
Electrical Storm in a Patient with an Implantable Cardioverter-Defibrillator (ICD)
Prognostic Model of Pacifico et al for a Patient with an Implantable Cardioverter-Defibrillator (ICD)
Recommendations of Josephson for Cardiac Pacing in a Patient with an Intraventricular Conduction Disturbance
Recommendations of the Heart Rhythm Task Force for Handling the Notification or Recall of an Artificial Pacemaker or ICD Device
Indications of Maron et al for Placing an Implantable Cardioverter-Defibrillator (ICD) in a Patient with Hypertrophic Cardiomyopathy
Triboelectricity (Static Electricity)-Induced Tachycardia in a Patient with a Pacemaker
Echocardiographic Severity Score of Moller et al for Carcinoid Heart Disease
TIMI Grades of Coronary Artery Perfusion
Grade of Collateral Circulation Demonstrated on Angiography Using the TIMI IIIA Trial Criteria
Grade of Ulceration Demonstrated on Angiography Using the TIMI IIIA Trial Criteria
Grades of Thrombus Demonstrated on Angiography Using the TIMI IIIA Trial Criteria
Grades of Myocardial Blushing Demonstrated on Angiography Using the Zwolle Myocardial Infarction Study Group Criteria
The Angiographic Perfusion Score of Gibson et al in Patients with Acute Myocardial Infarction Treated by a Percutaneous Coronary Intervention (PCI)
TIMI Myocardial Perfusion Grades
Plaque Ulceration Index (UI)
Categories of the ACC, AHA and ESC for Atrial Fibrillation
Risk Factors for Atrial Flutter
Electrocardiographic Features of Atrial Flutter
Risk Factors for Atrial Fibrillation
Electrocardiographic Features of Atrial Fibrillation
Risk Factors for Sinus Tachycardia
Electrocardiographic Features of Sinus Tachycardia
Risk Factors for Paroxysmal Atrial Tachycardia (PAT)
Electrocardiographic Features of Paroxysmal Atrial Tachycardia (PAT)
Risk Factors for the Tachycardia-Bradycardia Syndrome (Sinoatrial Disorder, Sick Sinus Syndrome)
Electrocardiographic Features of the Tachycardia-Bradycardia Syndrome (Sinoatrial Disorder, Sick Sinus Syndrome)
Equation of Mandel et al for Spontaneous Sinus Cycle Length and Maximum Sinus Node Recovery Time
Algorithm of Delacretaz for Long-Term Management of Supraventricular Tachycardia
Alcohol-Induced Rhythm Disorders (Holiday Heart Syndrome)
Indications for Catheter Ablation in a Patient with Atrial Fibrillation
Potential Complications of Catheter Ablation for Atrial Fibrillation
European Heart Rate Association (EHRA) Classification for Atrial Fibrillation Symptom Severity
Risk Score of Schnabel et al for Atrial Fibrillation from the Framingham Heart Study
HATCH Score of de Vos et al for Predicting Progression from Paroxysmal to Persistent Atrial Fibrillation (HAT2CH2 Score)
Predictors of Arriagada et al for Arrhythmia Recurrence in a Patient with Lone Atrial Fibrillation
Model of Barrett et al for Predicting the Risk of 30-Day Adverse Event in a Patient with Symptomatic Atrial Fibrillation
Measures of Dagres and Anastasiou-Nana for Reducing the Risk of Atrio-Esophageal Fistula Following Catheter Ablation of Atrial Fibrillation
Risk Factors of Sheldon et al for Atrial Fibrillation During Dobutamine Stress Echocardiography
Echocardiographic Predictors of Ayirala et al for Thrombus Formation in the Left Atrial Appendage of a Patient with Atrial Fibrillation
Algorithm of Shalganov et al for the Chamber of Origin for Atrial Tachycardia: Macroreentry Tachycardia
Algorithm of Shalganov et al for the Chamber of Origin for Atrial Tachycardia: Focal Tachycardia
Equation of Nagueh et al for Determining Left Ventricular Filling Pressure in Atrial Fibrillation Using Doppler Echocardiography
Indications of Whinnett et al for Referring a Patient with Supraventricular Tachycardia to a Cardiac Electrophysiologist
Diagnostic Tree of Whinnett et al for a Patient with Supraventricular Tachycardia (SVT) and a Narrow QRS
Arterial Distensibility
Arterial Stiffness Index
Classification of Schaefer et al for Shape of the Aortic Root
Method of Jo et al for Measuring the Thoracic Aortic Pulse Wave Velocity (PWV) in a Pediatric Patient
Method of Devereux and Reichek for Echocardiographic Determination of Left Ventricular Mass
Score of Dodd et al for Echocardiographic Changes in a Patient with Acute Cardiac Allograft Rejection
Classification of Coronary Artery Disease in a Cardiac Transplant Recipient Using Intravascular Ultrasonography
Distinction of Hypertrophic Cardiomyopathy from Athletic Heart Based on Echocardiographic and Electrocardiographic Features
Echocardiographic Point Score of Wigle et al for a Patient with Hypertrophic Cardiomyopathy
Algorithm of Kliger et al for Evaluating a Patient with Heart Failure and a Normal Left Ventricular Ejection Fraction
Electrocardiographic Findings of Groh et al Associated with Sudden Death in a Patient with Myotonic Dystrophy Type 1
Electrocardiographic Findings in a Patient with Duchenne's Muscular Dystrophy
ECG Score of Ostman-Smith et al for Predicting Risk of Sudden Death in a Patient with Hypertrophic Cardiomyopathy
Electrocardiographic Criteria of Kosuge et al for Takotsubo Cardiomyopathy
Echocardiographic Criteria of Jenni et al for Isolated Ventricular Non-Compaction (IVNC)
Risk Factors of Salles et al for Mortality in Chagas’ Cardiomyopathy Based on Electrocardiographic and Echocardiographic Parameters
T-Wave Axis Deviation and Prognosis in Chagas' Cardiomyopathy
Electrocardiographic Changes Seen in Hypothermia
Electrocardiographic Changes Reported by Rolfast et al for Patients Undergoing Therapeutic Hypothermia
Electrocardiographic Changes in Hypothyroidism (Myxedema)
Electrocardiographic Changes in Hyperthyroidism (Thyrotoxicosis)
Changes in the Electrocardiogram Associated with Anorexia Nervosa or Bulimia
Grading the Severity of Mitral Regurgitation on Left Ventricular Angiography
Indications and Contraindications for Percutaneous Electrophysiologic Studies
Complications Associated with Percutaneous Electrophysiologic Studies
Criteria of Munger for an Abnormal Electrophysiologic Study in a Patient with Syncope
Decision Algorithm of Schwartz and Bourassa for a Patient with Chest Pain and a Normal Coronary Angiogram (Syndrome X)
Clinical and Diagnostic Features of Syndrome X
Risk Factors of Rautaharju et al for Cardiovascular Mortality in a Postmenopausal Woman
Grades of Webster et al for Right-to-Left Shunt Using Doppler Echocardiography
Risk Score of Sharma et al for Evaluating a Patient Prior to Renal Transplantation
Appropriateness of Stress Echocardiography for Risk Assessment Prior to Noncardiac Surgery
Detection of a Left Ventricular Thrombus Following Surgery Using Transthoracic Echocardiography (TTE)
Transmitral Flow Pattern and Other Factors Used by Xie et al for Predicting the Survival of a Patient with Congestive Heart Failure
ECG Triad of Goldberger for Congestive Heart Failure
Equation of Henry et al for Predicting Left Ventricular Internal Dimension During Diastole
Equation of Khouri et al for Predicting Left Ventricular Internal Dimension During Diastole
Calculating the Volume of the Left Atrium as an Ellipsoid
Devices That Can Cause Artifacts in an ECG
Complications Caused By Artifacts in an Electrocardiogram (ECG)
Changes in the Electrocardiogram Associated with Lead Misplacement
Pseudoflutter Waves Associated with Rhythmic Patient Movements
Stokes Adams Attack in a Patient with Bradycardia and Syncope
Changes in an Electrocardiogram After Being Struck by Lightning
Changes in the Electrocardiogram Associated with a Metastatic Carcinoma to the Heart
Criteria for Correct Placement of a Central Venous Catheter Based on the Electrocardiogram (ECG)
Eccentricity Index of Ryan et al for Distinguishing Right Ventricular Volume Overload from Right Ventricular Pressure Overload
Causes of a Low Voltage QRS Complex
Low Voltage Electrocardiogram in Ascites
Criteria of Eisenberg et al for Low Voltage Electrocardiogram
Ratio of the T Wave Peak to End Interval to the QT Interval
Changes in the T Wave Reflecting Subendocardial Ischemia During a Hypertensive Emergency
Causes of Giant Inverted T Waves
Model of Salemi et al to Predict Outcome for a Patient with Biventricular Endomyocardial Fibrosis (EMF) Using Peak Late Diastolic Mitral Annular Velocities
ECG Sign of de Winter et al for Proximal Occlusion of the Left Anterior Descending (LAD) Coronary Artery
Intravascular Ultrasound (IVUS) Predictors of Hong et al for Angiographic Restenosis of a Sirolimus-Eluting Stent
Ostial Plaque Distribution on Intravascular Ultrasound (IVUS) and Side Branch Occlusion in Bifurcation Lesions After Percutaneous Coronary Intervention (PCI)
Changes in the ST Segment and T Wave of the Resting Electrocardiogram as Predictors of Cardiovascular Mortality
Acute Ischemia Index of Hassell et al and the Percentage of the Myocardial Area at Risk Following an Inferior Myocardial Infarction
Chronic Salvage Index of Hassell et al Following an Inferior Myocardial Infarction
Algorithm of Valles et al for Identifying Epicardial Ventricular Tachycardia in a Patient with a Nonischemic Cardiomyopathy
Grades of Aviram et al for Reflux of Contrast into the Inferior Vena Cava (IVC) in a Patient with Acute Pulmonary Embolism
CT Predictors of Kang et al for Adverse Outcome in a Patient with a Pulmonary Embolism
Framingham Formula for Correction of the Q-T Interval for Heart Rate (QTc)
Algorithm of Ploux et al for Identifying the Left Ventricular Lead Position in a Patient with a Cardiac Resynchronization System
Grades of Rentrop et al for Collateral Channel Filling from the Contralateral Artery
Coronary Score of Leaman et al for a Patient with Coronary Artery Atherosclerosis (CAD)
SYNTAX Score: Basic Score for an Arteriosclerotic Lesion Based on Location in a Coronary Artery
Classifying a Bifurcation Lesion in a Coronary Artery: SYNTAX and Medina Designations
SYNTAX Score: Points for a Lesion at a Bifurcation or Trifurcation
SYNTAX Score: Extra Points for Specific Findings
Total SYNTAX Score for All of the Lesions Identified on Coronary Angiography
ECG Changes Associated with Noonan Syndrome
Teichholz's Formula for Left Ventricular Volume
Equation of Dumesnil et al for Estimating the Left Ventricular Ejection Fraction (LVEF)
Left Atrial Function Index (LAFI) of Thomas et al
Verapamil-Sensitive Idiopathic Left Ventricular Tachycardia (Belhassen Tachycardia)
Arrhythmia Scoring Systems of Curtis and Walker: Score A
Arrhythmia Scoring Systems of Curtis and Walker: Score B
Arrhythmia Scoring Systems of Curtis and Walker: Score C
Arrhythmia Scoring Systems of Curtis and Walker: Score D
Arrhythmia Scoring Systems of Curtis and Walker: Score E
Arrhythmia Scoring Systems of Curtis and Walker: Score F
Arrhythmia Scoring Systems of Curtis and Walker: Score G
Cardiac Catheterization-induced Complete Heart Block (CIHB) in a Pediatric Patient with Congenital Heart Disease
Pretest Score of Morise et al for Probability of Coronary Artery Disease Prior to Exercise Testing
Exercise Test Score of Morise et al for Risk of Coronary Artery Disease in Women
Exercise Test Score of Morise et al for Risk of Coronary Artery Disease in Men
Phrenic Nerve Injury (PNI) Following Catheter Ablation for Atrial Fibrillation (AF)
Pulmonary Vein Stenosis Following Catheter Ablation for Atrial Fibrillation (AF)
Risk Factors of Hoyt et al for Complications Following Catheter Ablation of Atrial Fibrillation
Criteria of Contreras-Valdes et al for Esophageal Injury Following Radiofrequency Catheter Ablation for Atrial Fibrillation
Clinical Features of Atrioesophageal Fistula (AEF) Following Radiofrequency Catheter Ablation for Atrial Fibrillation
Echocardiographic Criteria of Michels et al for a Patient with Hypertrophic Cardiomyopathy
Trigeminocardiac Reflex (TCR) and Bradycardia
Model of Thankavel et al for Predicting Patent Ductus Arteriosus (PDA) Closure in a Neonate <= 30 Weeks Gestation
Pulseless Electrical Activity (PEA)
Rules of Smith et for Differentiating Acute Anterior ST-Elevation Myocardial Infarction (STEMI) from Left Ventricular Aneurysm (LVA)
Risk Factors of Di Salvo et al for Risk of Embolic Events in a Patient with Infective Endocarditis
Consensus Criteria of Grant et al for Severe Tricuspid Regurgitation (TR) on Doppler Echocardiography
Risk Factors of Islas et al for a Poor Outcome of Transcatheter Aortic Valve Implantation (TAVI) Without Balloon Aortic Predilation
Criteria of Lu et al for Screening a Child for Rheumatic Heart Disease in a Developing Country Using Handheld Echocardiography
World Heart Federation (WHF) Criteria for the Echocardiographic Diagnosis of Rheumatic Heart Disease in Pediatric Patients: Mitral Valve Findings
World Heart Federation (WHF) Criteria for the Echocardiographic Diagnosis of Rheumatic Heart Disease in Pediatric Patients: Aortic Valve Findings
Method of Am Dinh et al for Measuring the Cardiac Index with a Focused Ultrasound Examination
Algorithm of Zhong et al for Distinguishing Atrioventricular Node Re-Entrant Tachycardia (AVNRT) from Atrioventricular Reciprocating Tachycardia (AVRT)
DR-FLASH Score of Kosiuk et al for Predicting Left Atrial Arrhythmogenic Substrate
Score of de Souza et al for Predicting Sudden Death in a Patient with Chagas Cardiomyopathy
Findings on Echocardiography Suggestive of the Underlying Cause for a Cardiomyopathy
Predictors of Minich et al for Outcome Following Biventricular Repair in an Infant with Pulmonary Atresia and an Intact Ventricular Septum
World Heart Federation (WHF) Criteria for the Echocardiographic Diagnosis of Rheumatic Heart Disease in Pediatric Patients: Diagnosis
Prediction of 1-Year Mortality Following Percutaneous Coronary Intervention Based on the Study of Fu et al in the ASSENT-2 Trial
When to Suspect Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) in a Patient
Criteria of Priori et al for the Diagnosis of Early Repolarization (ER)
Idiopathic Ventricular Fibrillation (IVF)
When to Consider Genetic Testing of a Patient with Idiopathic Ventricular Fibrillation (IVF)
Isolated Progressive Cardiac Conduction Disease (PCCD) with Structurally Normal Heart
Progressive Cardiac Conduction Disease (PCCD) with a Structurally Abnormal Heart
Criteria for the Diagnosis of Low Flow, Low Gradient Aortic Stenosis (LFLGAS)
Strict Negative Criteria of Sivak et al for Exclusion of Native Valve Infective Endocarditis by Transthoracic Endocarditis
Clinical Features of Classic Timothy Syndrome (Type 1)
Prenatal Diagnosis of a Fetus with Timothy Syndrome
Clinical Features of Jervell and Lange-Nielsen Syndrome
Clinical Features of the Brugada Syndrome
Classification of the Electrocardiogram in Brugada Syndrome
Clinical Features of Andersen-Tawil Syndrome (ATS, Long QT Syndrome Type 7)
Criteria of Beltrame for Primary Coronary Slow Flow (Coronary Slow Flow Phenomenon, CSFP)
Seattle Criteria for Normal Changes in the Electrocardiogram (ECG) That Can Be Seen in Asymptomatic Athletes
Changes in the Electrocardiogram Associated with a Left-Sided Pneumothorax
Seattle Criteria for Changes in the Electrocardiogram (ECG) Associated with a Primary Electrical Disorder in an Athlete
Seattle Criteria for Changes in the Electrocardiogram (ECG) Associated with Cardiomyopathy in an Athlete
German Spiked Helmet (Pickelhaube) Sign
Cardiac Status Score (CSS) of Fukuda et al in a Patient with Acute Myocardial Infarction (AMI)
Biventricular Echocardiographic Index of Goda et al for Predicting Survival of a Patient with Pulmonary Hypertension
Heart Block Following Chest Trauma
Autoimmune Congenital Heart Block Associated with Maternal Autoimmune Disease
Equation of McKaigney et al for Estimating Left Ventricular Ejection Fraction (LVEF) from the Mitral Valve E-Point Septal Separation (EPSS) on Doppler Echocardiography
Indications for Considering the Placement of a Left Atrial Appendage (LAA) Closure Device in a Patient with Atrial Fibrillation
Model of Padala et al for Predicting Risk of Complications Following Ablation for Atrial Fibrillation
Estimation of Central Venous Pressure (CVP) from Ratio of Short to Long Diameters of the Inferior Vena Cava (IVC) Based on the Study of Seo et al
Differential Diagnosis of a Prolonged QTc
Predictors of van der Ende et al for Failure to Diagnose a Myocardial Infarction on an Electrocardiogram
Ratio of the Diameters of the Left Atrium to Vertebral Body to Identify Left Atrial Enlargement and Cardiogenic Pulmonary Edema
Risk Factors of von Rotz et al for Premature Ventricular Contractions (PVCs) in Healthy Young Adults
Echocardiographic Criteria of Kurnicka et al for Acute Pulmonary Embolism with Hemodynamic Instability
CT Pulmonary Angiography Predictors for Mortality in Pulmonary Embolism Based on the Study of Aviram et al
Prognostic Factors of Toosi et al for a Patient with an Acute Pulmonary Embolism
Echocardiographic Features of Cor Pulmonale
Echocardiographic Score of D'Alto et al for Distinguishing Pre from Postcapillary Pulmonary Hypertension
Echocardiographic Score of Opotowsky et al for Evaluating a Patient with Pulmonary Hypertension
Heart Block Associated with Systemic Lupus Erythematosus (SLE)
Migraine-Associated Cardiac Arrhythmias and Malformations
Permanent Pacemaker Implantation After Surgical Ablation for Atrial Fibrillation Based on the Study of Pecha et al
Criteria of Weinberg et al for the Diagnosis of Atrial Flutter
TrOPs-BAC Models of Atzema et al for 30-Day Mortality in Atrial Fibrillation: Complex Model
TrOPs-BAC Models of Atzema et al for 30-Day Mortality in Atrial Fibrillation: Simple Model
Echocardiographic Predictors of Yoon et al for Persistent or Permanent Atrial Fibrillation in a Patient with Paroxysmal Atrial Fibrillation (PAF)
CHARGE-AF Models for Predicting the Incidence of Atrial Fibrillation: Simple Model
CHARGE-AF Models for Predicting the Incidence of Atrial Fibrillation: Augmented Model
Junior SVT Score of Deutsch et al for Differentiating Orthodromic Atrioventricular Reentry Tachycardia (OAVRT) from Atrioventricular Nodal Reentry Tachycardia (AVNRT) in a Pediatric Patient with Narrow QRS Tachycardia
Risk Factors of Park et al for Early New Onset of an Atrial Tachyarrhythmia Following Trans-Catheter Device Closure of an Atrial Septal Defect (ASD)
Scoring System of Visentin et al for Predicting Atrial Fibrillation in a Patient with Chronic Lymphocytic Leukemia (CLL)
Diagnosis of Right Ventricular Dysfunction
Distension of the Inferior Vena Cava (IVC) in Right Ventricular Overload
Nomogram of Soslow et al for Predicting Coarctation of the Aorta in a Neonate with Patent Ductus Arteriosus (PDA)
Conditions Associated with a False Positive Diagnosis of Acute Myocardial Infarction (AMI) on an Electrocardiogram (ECG)
Conditions Associated with a False Negative Diagnosis of Acute Myocardial Infarction (AMI) on an Electrocardiogram (ECG)
ECG Criteria of Peguero et al for Left Ventricular Hypertrophy (LVH)
Echocardiographic Score of D'Alto et al for Diagnosis of Pulmonary Vascular Disease in a Patient with Heart Failure
Grading Scheme of Hahn et al for Paravalvular Aortic Regurgitation Following Transcatheter Aortic Valve Replacement
Metabolic Exercise Cardiac Kidney Indexes (MECKI) Score in a Patient with Chronic Heart Failure
Prolongation of the QTc Interval in an Alcoholic
ABC Death Risk Score of Hijazi et al for 1-Year Mortality in a Patient with Atrial Fibrillation
Risk Score of Gunda et al for Predicting Complications After Ablation for Ventricular Tachycardia
Suspicious Index of Besant et al for Identifying a Patient with High Grade Atrioventricular Block Due to Lyme Carditis (COSTAR)
Predictors of Manini et al for ECG Changes Associated with Suspected Poisoning
Predictors of Argulian et al for Inducible Ischemia in a Patient Referred to Stress Echocardiography for Exertional Dyspnea Without Chest Pain
Risk Score of Sieira et al for a Patient with Brugada Syndrome
PRAETORIAN Score of Quast et al for a Subcutaneous Implantable Cardioverter-Defibrillator (S-ICD)
Indications for Permanent Pacing Based on Electrophysiological Testing Performed on a Patient with Syncope
Score of Perez-Rodon et al for Predicting the Absence of Left Ventricular Remodeling Prior to Insertion of an Implantable Cardioverter Defibrillator (ICD)
Risk Score of Kramer et al for Predicting Early Mortality of a Patient with an Implantable Cardioverter-Defibrillator (ICD)
Risk Score of Nevzorov for Predicting 1-Year Mortality After Insertion of an Implantable Cardioverter Defibrillator (ICD, AAACC Score)
VALID-CRT Risk Score of Gasparini et al for a Patient with Implanted Cardiac Resynchronization Therapy (CRT)
Atrial Fibrillation and Hypothyroidism
Indications for Urgent Referral to an Atrial Fibrillation Specialist
Score of Roca-Luque for Identifying a Patient with Syncope Who Is At Risk for Advanced Atrioventricular Block After a Negative Electrophysiological Test
REFER Decision Rule for Referring an Adult for Echocardiography for the Diagnosis of Heart Failure (MICE Rule)
BRASH Syndrome
Cardiac Arrhythmias in Hereditary Hemorrhagic Telangiectasia (HHT)
Electrical Risk Score of Aro et al for Sudden Cardiac Death
Coronary Artery Bypass Graft (CABG) Related Myocardial Infarction
ECG Changes That May Be Associated with a Previous Myocardial Infarction
ECG Evidence for a Silent (Unrecognized) Acute Myocardial Infarction (AMI)
Chapman Sign
ECG Equation of Smith et al for Differentiating Early Repolarization from Subtle Anterior ST-Segment Elevation Myocardial Infarction (STEMI)
Criteria of Sgarbossa et al for Acute Myocardial Infarction in the Presence of Ventricular Paced Rhythm (VPR)
Predictors of Cannon et al for Diagnosis of a Non-Q Wave Acute Myocardial Infarction
Formula of Driver et al for Distinguishing Early Repolarization From Suble Left Anterior Descending Coronary Artery Occlusion
Bedside Ultrasound Measure of Simon et al for Detecting an Elevated Right Atrial Pressure
Risk Factors of Santangeli et al for Early Mortality Following Catheter Ablation of Ventricular Tachycardia in a Patient with Structural Heart Disease
Electrical Storm
PAINESD Score
Classification of Brugada for Ventricular Tachycardia Acceleration During Programmed Electrical Stimulation
Classification of Horowitz for Pericardial Effusion on Echocardiography
Decision Aid of Fink et al for Referring a Patient with a Systolic Murmur to Echocardiography
Estimation of Right Ventricular Systolic Pressure in a Patient with Tricuspid Regurgitation Using Doppler Ultrasonography
Severity of Aortic Stenosis and the Energy Loss Index (ELI)
Simplified Formula of Hakki et al for Estimating the Area of a Stenotic Aortic or Mitral Valve
Rule of Otto and Pearlman for Doppler Ultrasonography in a Patient with Symptomatic Aortic Stenosis
Early Diastolic Velocity of the Mitral Annulus (Ea) and Estimation of the Pulmonary Capillary Wedge Pressure (PCWP)
DANAMI (Danish Trial in Acute Myocardial Infarction-2) Score
GISSI-2 Index
Score of Prakash et al for All-Cause Mortality Based on Clinical and Exercise Test Findings
6-Item Clinical Score of Cortigiani et al for Evaluating a Patient Undergoing Stress Echocardiography
Exercise-Induced Bundle Branch Block (BBB)
Significance of Ventricular Premature Contractions (VPCs) in a Patient Undergoing Treadmill Stress Testing
Prediction of Torsade de Pointes from the QT Interval for a Patient with an Amisulpride Overdose
Risk Model of Dodson et al for In-Hospital Adverse Event After Implantation of a Cardioverter-Defibrillator (ICD)
Risk Score of Padala et al for Intraprocedural Cardiac Injury During Implantable Cardioverter Defibrillator (ICD) Placement
C2HEST Score of Li et al for Predicting Atrial Fibrillation in an Asian Adult
AS5F Score of Uphaus et al for Detecting Paroxysmal Atrial Fibrillation After a Stroke
AFTER2 Score of Atzema et al for a Patient with Atrial Fibrillation in the Emergency Department
2MACE Score of Pastroi et al for a Patient with Non-Valvular Atrial Fibrillation
Atrial Fibrillation Burden
Predictors of the Stroke Prevention in Atrial Fibrillation Investigators for Thromboembolism in Atrial Fibrillation
Study of Weigner et al for Risk of Thromboembolism Associated with Conversion of Atrial Fibrillation Lasting Less Than 48 Hours
Evaluation of a Patient with Sinus Tachycardia
Echocardiographic Findings of Mishra et al at the Mitral Valve for Predicting Heart Failure in a Patient with Coronary Artery Disease
Differential Diagnosis of Bradycardia
Classification of Bradydysrhythmias
ECG Features of Sinus Bradycardia
Echocardiographic Method of D'Cruz and Hoffman to Estimate the Size of a Large Pericardial Effusion
Mayo Clinic Criteria for Constrictive Pericarditis by Echocardiography
Sinus Node Responsiveness Index
Equation of Karjalainen et al for Calculating QTc
Formula of Fridericia for Corrected QT Interval
Risk Score of Tisdale et al for Predicting QTc Interval Prolongation in a Hospitalized Patient
Algorithm of DeMeester et al for a Patient with Atrial Fibrillation and Rapid Heart Rate in the Emergency Department
HAVOC Score of Kwong et al for Predicting Atrial Fibrillation
ESCARVAL Risk Score of Orozco-Beltran et al for Atrial Fibrillation in a Hypertensive Patient
Bradycardia Associated with Ophthalmic Beta-Blocker Therapy for Glaucoma
Lake Louise Imaging Criteria for the Diagnosis of Myocarditis by Cardiac Magnetic Resonance (CMR)
Electrocardiographic Prognostic Factors of Butta et al for a Patient with Acute Myocarditis
ECG Prognostic Score of Soofi et al
ECG Changes of Rossello et al Differentiating Acute Pericarditis from Acute Myocardial Infarction (AMI)
Echocardiographic Predictors of Vyas-Read et al for Mortality of an Infant with Severe Bronchopulmonary Dysplasia (BPD)
Estimation of Mean Pulmonary Artery Pressure Using the Equations of Dabestani et al
Progressive First-Degree Atrioventricular Block and Perioperative Bradyarrhythmia
Prediction of Pulmonary Hypertension in a Patient with Systemic Sclerosis Using Exercise Echocardiography
Prognostic Findings of Hebestreit et al for Cystic Fibrosis From Cardiopulmonary Exercise Testing (CPET)
Acquired Prolongation of the QT Interval and Mortality for a Patient in the ICU
Conditions Causing a Brugada Phenocopy
Criteria for the Diagnosis of Brugada Phenocopy
Impact of Fever on a Patient with Brugada Syndrome
Concealed Brugada Syndrome
Risk Factors for New-Onset of Atrial Fibrillation in a Patient with Sepsis
Risk Factors of Bedford et al for New-Onset Atrial Fibrillation for an Adult in the Intensive Care Unit (ICU)
Risk Factors for Atrial Fibrillation in a Patient with HIV
Risk Factors of He et al for New-Onset of Atrial Fibrillation (NOAF) After Acute Myocardial Infarction (AMI)
Differential diagnosis of Bradycardia in a Patient with Lung Cancer
Screening for Pulmonary Artery Stenosis (PAS) in a Patient with Lung Cancer
Electrocardiographic Risk Score of Holkeri et al for Predicting Sudden Cardiac Death in a General Population
ECG Features of the U Wave
Causes of an Abnormal U Wave
Echocardiography-Based Risk Score of Zhu et al for a Patient on Hemodialysis
ST-Segment Elevation in Precordial Leads of the ECG in a Healthy Adult
Differential Diagnosis of an Elevated ST Segment
Scoring System of Bode-Thomas et al for Myocardial Ischemia in a Patient with Sickle Cell Anemia
Score of Braunstein et al for the Diagnosis of Left Ventricular Hypertrophy
Electrocardiographic Changes Seen with Chronic Cocaine Use
Shanghai Score for the Diagnosis of Brugada Syndrome
Models of Hong et al for Predicting Subarachnoid Hemorrhage from the ECG: World Federation of Neurosurgical Societies (WFNS) Model
Models of Hong et al for Predicting Subarachnoid Hemorrhage from the ECG: Hunt and Hess Model
Models of Hong et al for Predicting Subarachnoid Hemorrhage from the ECG: Fisher Grade Model
QQ-LAE Score of Liu et al for Identify a Super-Responder to Cardiac Resynchronization Therapy
Electrocardiographic and Echocardiographic Findings in a Patient with Fabry Disease
Shockable and Nonshockable Initial Rhythms in Cardiac Arrest
SACAF Score of Wu et al for Risk of Ventricular Tachyarrhythmia and Out-of-Hospital Cardiac Arrest (OHCA)
Equations of Chubb et al for Calculating Age-Dependent QRS Duration Z-Scores
Spodick's Sign in Acute Pericarditis
Method of Jain for Identifying Constrictive Pericarditis Using Ejection Times During the Respiratory Cycle
Tachycardia-Dependent Paroxysmal Atrioventricular (AV) Block
Risk Factors of Lin et al for Complete Atrioventricular (AV) Block After Occlusion of a Perimembranous Ventricular Septal Defect (VSD)
Atrial Fibrillation Associated with Carbon Monoxide Poisoning
Predictors of Bashir et al for Cardiovascular Perforation During Cardiac Lead Extraction
TIMI Thrombus Burden Classification
PALSE Score of Ozcan Cetin et al for Predicting the Thromboembolic Milieu Associated with Atrial Fibrillation
Predictors of Choi et al for Early Recurrence of Atrial Fibrillation
Admit-AF Risk Score of Meyre et al for Predicting Hospital Admission for a Patient with Atrial Fibrillation
Score for Targeting of Atrial Fibrillation (STAF) of Suissa et al
AS5F Score of Uphaus et al for Predicting Paroxysmal Atrial Fibrillation After Stroke
iPAB Score of Yoshioka et al for Identifying a Patient with Stroke Who May Have Paroxysmal Atrial Fibrillation
AF-ESUS Score of Ntaios et al for New Incident Atrial Fibrillation in a Stroke Patient
Brown ESUS-AF Score of Ricci et al for Predicting Paroxysmal Atrial Fibrillation Following Embolic Stroke of Unknown Source
Echocardiographic Killip Classification of Milwidsky et al
ECG Mortality Predictors of Lahti et al for a Patient with an ST Segment Elevation Myocardial Infarction (STEMI)
Pseudo Myocardial Infarction in Diabetic Ketoacidosis (DKA)
ECG Features of Zhou et al for Total Occlusion of the Left Main Coronary Artery Without Collateral Circulation
JIM Score of Jim et al for Identifying the Affected Artery Following an Inferior Myocardial Infarction
Risk Predictors of Okin et al for a Patient with Hypertension Based on ECG Criteria for Left Ventricular Hypertrophy (LVH)
ECG Predictors of Hashimoto et al for Lethal Ventricular Tachyarrhythmias in a Patient with Chronic Kidney Disease (CKD)
ABC-VT Risk Score of Voskoboinik et al for Adverse Outcome in a Patient with Frequent Premature Ventricular Complexes
P Wave Interatrial Block (IAB)
ECG Changes Associated with Toxic Mushroom Myocarditis
Cardiac Damaging Staging in a Patient with Aortic Stenosis
Risk Score of Vandael et al for Prolonged QTc in a Hospitalized Psychiatric Patient (Modified RISQ-PATH Score)
Seizure-Related (Ictal or Post-Ictal) Cardiac Arrhythmias
Model of Sheng et al for Recurrence of Paroxysmal Atrial Fibrillation (PAF) After Post-Circular Pulmonary Vein Radiofrequency Ablation (CPVA)
Risk Factors of Peng et al for Late Recurrence of Nonvalvular Atrial Fibrillation After Radiofrequency Catheter Ablation
Morphology-Voltage-P-Wave Duration (MVP) ECG Risk Score for Atrial Fibrillation
Differential Diagnosis of Sleep-Related Bradycardia
Model of Figliozzi for Identify Cardiac Involvement in a Patient with Fabry Disease
Treatable Causes of Cardiac Arrest (The 5 H's and 5 T's)
PDDPC Score of Giordano et al for Predicting Duct-Dependency After Percutaneous Surgery for Congenital Pulmonary Valve Stenosis or Atresia
Score of Wongthida et al for Life-Threatening Arrhythmias Associated with ST-Elevation Acute Coronary Syndrome After Percutaneous Coronary Intervention (PCI)
Glasgow CMR Risk Model of Bulluck et al for Reperfused ST Segment Elevation Myocardial Infarction (STEMI)
Eitel Risk Score of Stiermaier et al for ST-Segment Elevation Myocardial Infarction (STEMI) Using Cardiac Magnetic Resonance Imaging (MRI)
Score of Ladouceur et al for Ventricular Arrhythmia or Sudden Death in an Adult with Transposition of the Great Arteries
Algorithm of Fortuni et al for Grading the Severity of Secondary Tricuspid Regurgitation
Criteria of Kebed et al for Massive Tricuspid Regurgitation
Prognostic Factors of Ito et al for a Patient with Moderate Aortic Stenosis
Algorithm of Andersen et al for Estimating Left Atrial Pressure By Echocardiography: Left Atrial Pressure Determination
Algorithm of Andersen et al for Estimating Left Atrial Pressure By Echocardiography: Clinical Use
ScREEN Score for a Patient Undergoing Cardiac Resynchronization Therapy
Predictors of Uemura et al for Recurrent Atrial Fibrillation Following Catheter Ablation
Graz AF Risk Score of Kneihsl et al
Modified C2HEST (mC2HEST) Score of Li et al for Predicting Atrial Fibrillation in an Asian Adult
Model of Klein Klouwenberg et al for Predicting Onset of Atrial Fibrillation in a Septic Adult in the ICU
Predictors of Guttmann et al for Atrial Fibrillation in a Patient with Hypertrophic Cardiomyopathy
Right Ventricular Dysfunction (RVD) Score of Bech-Hanssen et al
Screening for Pediatric Lyme Disease Using the Electrocardiogram
Risk Score of Piccini et al for Pericardial Effusion After Implantation of a Leadless Pacemaker
Indications for Influenza Vaccination or Prophylaxis in a Traveler
Changes in the 12-Lead Electrocardiogram for a Patient with Dextrocardia
Manchester Acute Coronary Syndromes ECG Risk Model (MACS-ECG)
Model of Cadrin-Tourigny et al for Predicting Sustained Ventricular Tachycardia in a Patient with Arrhythmogenic Right Ventricular Cardiomyopathy
Score of Murni et al for Predicting Pulmonary Hypertension in a Pediatric Patient with Atrial Septal Defect (ASD)
Scoring Tool of Timberline et al for Persistent Pulmonary Hypertension of Newborn (PPHN): Oxygenation Score
Scoring Tool of Timberline et al for Persistent Pulmonary Hypertension of Newborn (PPHN): Echocardiogram and Final Scores (HRF/PH Score)
Predictors of Aafreen et al for Respiratory Distress in an Early Preterm Newborn
H2VK-65 Score of Kaolawanich et al for Predicting a High Coronary Artery Calcium Score in a Symptomatic Patient
Risk Score of McCubrey et al for Major Adverse Cardiac Events (MACE) Based on the Cardiac PET/CT Scan: Score for 90-Day Risk
Risk Score of McCubrey et al for Major Adverse Cardiac Events (MACE) Based on the Cardiac PET/CT Scan: Score for 1-Year Risk
Vall d'Hebron Risk Score II: Model with Negative History
Vall d'Hebron Risk Score II: Model with Positive History
Main Types of Congenital Long QT Syndrome
1-2-3-LQTS Risk Model of Mazzanti et al for Long QT Syndrome
Prolonged QTc Interval and Eating Disorders
Clinical Score of Yuksen et al for Recurrence Risk of Paroxysmal Supraventricular Tachycardia (PSVT)
ACEF-LA Score of Taylan et al for Predicting Recurrent Atrial Fibrillation After Cryoablation
PE2RT Score of Isaak et al for Prognosis in Takotsubo Syndrome
DEI Score of Zamfirescu et al for Predicting Early Readmission After a First Episode of Acute Heart Failure with Preserved Ejection Fraction (HFpEF)
Early Detection Rule of Chon et al for Detecting Severe Hyperkalemia in a Patient with Symptomatic Bradycardia
CoMOD Echocardiographic Score of Bartolacelli et al for Predicting Neonatal Surgery for Aortic Coarctation in a Newborn with Patent Ductus Arteriosus (PDA)
J Wave of Osborn
Electrocardiographic Changes Associated with Cirrhosis
Red Flags of Cuddy et al for Cardiac Amyloidosis on Echocardiography
Predictors of Sebestyen et al for Ventricular Arrhythmias in a Patient with Systemic Sclerosis
Mayo Clinic WCT (Wide Complex Tachycardia) Formula of May et al
Mayo Clinic VT Prediction Model of May et al
Calcium Release Deficiency Syndrome (CRDS)
Predicting Arrhythmia Event (PAT) Score of Rattanawong et al for a Patient with Brugada Syndrome
BRUGADA-RISK Score of Honarbakhsh et al
GARFIELD-AF Predictive Models for a Patient with Atrial Fibrillation: 2-Year Mortality
MEDIA Echo Score of Huttin et al for Heart Failure with Preserved Ejection Fraction (HFpEF)
T(peak)-to-T(end) Interval (T Wave Peak-to-End Interval, Tp-e)
Clinical Risk Prediction Score of Dasgupta et al for Postoperative Accelerated Junctional Rhythm and Junctional Ectopic Tachycardia in Children with Congenital Heart Disease (CHD)
Hemodynamic and Echocardiographic Predictors of Punn et al for Failed Weaning from Venoarterial Extracorporeal Membrane Oxygenation (vaECMO)
