Common questions about ECG (EKG)
Myocardial Ischemia
Pathological condition of the myocardium due to insufficient blood supply, usually caused by coronary artery obstruction.
Myocardial Infarction
Necrosis of the myocardium due to sustained ischemia, typically caused by complete coronary artery blockage.
Myocardial Hypoxia
Damage to the myocardium due to lack of oxygen, which can be caused by various factors such as respiratory diseases.
Low Voltage
Lower amplitude of ECG waves, which can be caused by obesity, pleural effusion, or other reasons.
Wolff-Parkinson-White Syndrome
A congenital heart condition characterized by an abnormal conduction pathway between the atria and ventricles.
Premature Ventricular Contraction (VPC)
Abnormal contraction of the ventricles before the normal heartbeat cycle.
Premature Atrial Contraction (APC)
Abnormal contraction of the atria before the normal heartbeat cycle.
Paroxysmal Supraventricular Tachycardia (PSVT)
Sudden and short episodes of supraventricular tachycardia.
Sinus Arrhythmia
Irregular heart rhythm originating from the sinoatrial node.
Sinus Tachycardia
Abnormally fast heartbeat, usually over 100 beats per minute, controlled by the sinoatrial node.
Sinus Bradycardia
Abnormally slow heartbeat, usually less than 60 beats per minute, controlled by the sinoatrial node.
Atrioventricular Block (AV Block)
Impaired electrical signal conduction between the atria and ventricles.
Right Bundle Branch Block (RBBB)
Impaired electrical signal conduction in the right bundle branch.
Left Bundle Branch Block (LBBB)
Impaired electrical signal conduction in the left bundle branch.
Right Atrial Enlargement
Enlargement of the right atrium, which may be caused by pulmonary hypertension, among other reasons.
Right Ventricular Hypertrophy
Thickening of the right ventricular wall, usually due to pulmonary hypertension.
Left Atrial Enlargement
Enlargement of the left atrium, commonly seen in hypertension or valvular diseases.
Left Ventricular Hypertrophy
Thickening of the left ventricular wall, commonly seen in hypertension or aortic valve stenosis.
Junctional Rhythm
Heart rhythm originating from the atrioventricular node or adjacent areas.
Early Repolarization
Earlier than normal repolarization of the myocardium, often seen in healthy young individuals.
Atrial Fibrillation
Chaotic and rapid contraction of the atria, leading to compromised heart function.
Right Axis Deviation
Rightward shift of the electrical axis on the ECG, which can be caused by right ventricular hypertrophy and other conditions.
Left Axis Deviation
Leftward shift of the electrical axis on the ECG, commonly seen in left ventricular hypertrophy or left anterior fascicular block.
Wide QRS Complex
Increased width of the QRS complex, which can be caused by bundle branch block or ventricular ectopic beats.
ST Depression
ST segment is below the baseline, commonly seen in myocardial ischemia.
ST Elevation
ST segment is above the baseline, usually indicating acute myocardial infarction.
Nonspecific ST-T Changes
Nonspecific changes in the ST segment and T wave, which can be caused by various factors.
T Wave Inversion
Inversion of the T wave, which can be caused by myocardial ischemia or other reasons.
Tall T Wave
Tall T wave, which can be caused by hyperkalemia or acute myocardial infarction.
Abnormal R Wave Progression
Abnormal progression of the R wave across precordial leads, which can be caused by myocardial infarction.
Delta Wave
Characteristic waveform of Wolff-Parkinson-White syndrome, indicating an abnormal conduction pathway.
Prolonged QT Interval
Prolonged QT interval, increasing the risk of arrhythmias.
Biphasic T Wave
Biphasic T wave, which can be caused by myocardial ischemia or other reasons.
J Wave
Appearance of J wave, which can be caused by hypothermia or other reasons.
U Wave
Appearance of U wave, which can be caused by hypokalemia or other reasons.