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The last half of the T wave is referred to as the relative refractory period or vulnerable period. The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the T peak –T end interval. [1] In most leads, the T wave ...
Microvolt T wave alternans is a variant of T wave alternans that detects T wave alternans signals as small as one-millionth of a volt. Microvolt T wave alternans is defined as an alternation in the morphology of the T wave in an every other beat or AB-AB pattern. It has long been associated with ventricular arrhythmias and sudden death.
Congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and skeletal/spinal abnormalities syndrome CML Chronic myelogenous leukemia: CMs Chiari malformations: CMT disease Charcot–Marie–Tooth disease: CMT1A Charcot–Marie–Tooth disease type 1A CMT1B Charcot–Marie–Tooth disease type 1B CMT1C
Wellens' syndrome is an electrocardiographic manifestation of critical proximal left anterior descending (LAD) coronary artery stenosis in people with unstable angina. ...
T wave: The T wave represents the repolarization of the ventricles. It is generally upright in all leads except aVR and lead V1. Inverted T waves can be a sign of myocardial ischemia, left ventricular hypertrophy, high intracranial pressure, or metabolic abnormalities. Peaked T waves can be a sign of hyperkalemia or very early myocardial ...
Telecanthus with associated abnormalities; Telencephalic leukoencephalopathy; Telfer–Sugar–Jaeger syndrome; Temporal epilepsy, familial; Temporomandibular ankylosis; Temporomandibular joint dysfunction (TMJ) Temtamy–Shalash syndrome; TEN
The T wave inversion in V1-4 and a marked Q wave in III occur; these changes are characteristic for Ebstein's anomaly and do not reflect ischemic ECG changes in this patient. Other abnormalities that can be seen on the ECG include: signs of right atrial enlargement or tall and broad 'Himalayan' P waves
In cell biology and pathophysiology, cellular adaptation refers to changes made by a cell in response to adverse or varying environmental changes. The adaptation may be physiologic (normal) or pathologic (abnormal). Morphological adaptations observed at the cellular level include atrophy, hypertrophy, hyperplasia, and metaplasia. [1]