…the ST segment is elevated above the level of the PR segment. The magnitude of any ST segment deviation is measured as the height difference …

…12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation Left bundle branch block. Left ventricular hypertrophy…

…12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation Left bundle branch block. Left ventricular hypertrophy…

ECG Hypertrophy and dilatation Biventricular hypertrophy Simultaneous hypertrophy of the left and right ventricle is rather common. The ECG has low sensitivity with respect to…

CPR Pneumothorax Pneumothorax is characterized by the presence of free air in the thoracic cavity. While this can occasionally be benign and manifest even in…

…ST segment deviation are not ischemic! However, T wave inversions that are accompanied by ST segment deviation (either depression or elevation) is representative of ischemia…

…to adults in sinus rhythm, recorded at a paper speed of 50 mm/s with 1 mV = 10 mm. At 50 mm/s a…

…millimeters) between the J point and the baseline (the PR segment). ST segment deviation occurs in a wide range of conditions, particularly acute myocardial ischemia…

…fashion which is rather easy to spot. The hallmark of fascicular blocks is the deviation of the electrical axis. The QRS duration is slightly prolonged…

…as a formal diagnostic criterion for the condition [17]. Left Axis Deviation (LAD) LAD is a recognized diagnostic component of left ventricular hypertrophy (LVH). Specifically…

…base of skull fracture or a significant midfacial or nasal fracture (absolute). An unsecured airway or haemodynamic instability — stabilise the patient first. Marked septal deviation…

…85% of the expected maximum heart rate. The reasons for this follows: There is substantial individual variation in maximum heart rate . The standard deviation for…

…segment deviation (elevation or depressions) – is never a sign of acute ischemia. T wave inversions with concomitant ST segment deviations are, however, typical of ischemia…

…that the reference level for measuring deviation (elevation or depression) of the ST segment is the PR segment (the terminal portion of the PR interval)…

…LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which results in large R waves in left…

…in a patient on digoxin treatment 1 ECG signs of left atrial enlargement 3 Left axis deviation 2 QRS duration ≥90 milliseconds 1 Prolonged R…

Cardiology Interpreting myocardial perfusion SPECT images involves a systematic comparison of rest and stress images to assess myocardial ischemia and infarction. The key steps in…

…occur in one patient. The typical depiction of sudden cardiac death as a gradual transition from sinus rhythm to ventricular tachycardia (VT), to ventricular fibrillation…