ECG Reference
Pericardium, Lungs, Brain and More on ECG
21 terms — criteria, diagrams, and real tracings
Pericarditis on ECGPericarditis — inflammation of the pericardium.
Pericardial Effusion and TamponadePericardial effusion is the accumulation of fluid between the layers of the pericardium, and cardiac tamponade is the critical compression of the heart chambers by this fluid, resulting in impaired ventricular filling.
Electrical AlternansElectrical alternans is a periodic variation in the amplitude, axis, or morphology of the QRS complex (less commonly P and T waves) from beat to beat.
PE on ECGPulmonary embolism (PE) on ECG is a set of nonspecific signs of acute right ventricular strain in pulmonary embolism.
SI-QIII-TIII Syndrome (McGinn-White)S1Q3T3 syndrome (McGinn-White) is the combination of a deep S wave in lead I, a Q wave, and an inverted T wave in lead III on a single ECG.
COPD on ECGCOPD on ECG is a set of nonspecific changes associated with pulmonary emphysema and potential right heart strain in chronic obstructive pulmonary disease.
Pulmonary Emphysema on ECGPulmonary emphysema on ECG is a set of nonspecific changes caused by hyperinflation of lung tissue and displacement of the heart away from the chest wall.
Chronic Cor PulmonaleChronic cor pulmonale is hypertrophy and/or dilation of the right ventricle resulting from pulmonary hypertension caused by chronic pulmonary disease, chest wall…
Elevated Intracranial Pressure on ECGCerebral ECG changes are a complex of nonspecific repolarization abnormalities seen in acute brain injury, most commonly subarachnoid…
Subarachnoid Hemorrhage on ECGSubarachnoid hemorrhage on ECG is a pattern of repolarization changes most typically associated with a neurogenic catecholamine surge following brain injury,…
Osborn WaveAn Osborn wave is an additional dome-shaped positive deflection at the J point, slurrin/notching onto the end of the QRS complex and the beginning of the ST segment.
DextrocardiaDextrocardia is a congenital condition in which the heart is located predominantly in the right hemithorax with the apex and long axis directed to the right, usually due to…
Mitral Valve Prolapse on ECGMitral valve prolapse (MVP) is the systolic displacement of one or both mitral valve leaflets by more than 2 mm beyond the plane of the mitral…
Valvular Heart Disease on ECGValvular heart disease on ECG is a complex of secondary wave and complex alterations reflecting chamber strain and hypertrophy in valvular disorders.
Atrial Septal Defect on ECGAtrial septal defect (ASD) is a congenital heart defect involving a communication between the atria and volume overload of the right heart chambers.
Tetralogy of Fallot on ECGTetralogy of Fallot is a congenital heart defect characterized by right ventricular outflow tract obstruction, ventricular septal defect, dextroposition of the aorta, and right ventricular hypertrophy…
Anemia and ECGAnemia and ECG is a section covering nonspecific electrocardiographic changes associated with decreased hemoglobin levels.
Obesity and ECGObesity on ECG is a complex of nonspecific changes associated with increased distance between the heart and electrodes, high diaphragmatic position, and neurohumoral shifts.
Chagas Disease on ECGChagas disease on ECG is a set of findings in chronic cardiomyopathy caused by the protozoan Trypanosoma cruzi.
Cardiac Sarcoidosis on ECGCardiac sarcoidosis is a granulomatous involvement of the myocardium in systemic sarcoidosis that impairs conduction and creates arrhythmogenic substrates.
ECG After Cardiac SurgeryECG after cardiac surgery is a set of expected and pathological waveform changes that occur following open-heart procedures (CABG, valve replacement, repair of…
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Basics: waves, intervals, axesSinus nodeSupraventricular arrhythmiasVentricular arrhythmiasAV blocksBundle and fascicular blocksVentricular pre-excitationMyocardial ischemia and infarctionHypertrophy and chamber enlargementElectrolytes and metabolismDrugs and intoxicationsChannelopathies and cardiomyopathiesCardiac pacingArtifacts and lead placement errorsCriteria, formulas, algorithmsPhenomena and eponymsPediatric, athletes, pregnant patients