What is Wellens syndrome on ECG?
Wellens syndrome describes an abnormal electrocardiographic (ECG) pattern, deeply inverted T waves in leads V2 and V3, that are secondary to proximal LAD stenosis. Patients often present to the emergency department pain-free and elevated cardiac enzymes are usually normal or only slightly elevated.
What is Wellens Type B?
There are two ECG patterns in Wellens’ syndrome: Type A is characterized by deeply symmetrical T-wave inversions in leads V2 and V3, often including leads V1 and V4 and occasionally leads V5 and V6; type B is characterized by biphasic T-waves in leads V2 and V3.
What is biphasic in ECG?
Wellens Syndrome (WS) is a condition characterized by typical changes in ECG, which are biphasic T-wave inversions (less common) or symmetric and deeply inverted T waves (including 75%) in lead V2–V3 chest derivations (1). WS is considered important because it has not only diagnostic value but also prognostic value.
Is Wellens an Nstemi?
Symmetrically inverted or biphasic T waves in anterior precordial leads, Wellens’ sign, have been shown to represent impending infarction of left anterior descending (LAD) territory among unstable angina patients in the studies published more than 3 decades ago, when non-ST-segment elevation myocardial infarction ( …
Which ECG finding is characterized by elevation of the J point?
The term J-point elevation represents a family of ECG findings. It has been described in several metabolic disorders most notably hypothermia (abnormally low body temperature). Subtle nuances in its pattern may point to other conditions, the most common of which is termed ‘early repolarization’.
How is Wellen syndrome treated?
Patients with Wellens syndrome are to be treated as unstable angina. This includes aspirin, nitroglycerin, and pain control, if needed. Patients should be admitted to the hospital where serial cardiac markers and electrocardiograms should be followed.
Who rose questionnaire?
The Rose Angina Questionnaire (RAQ) was developed in 1962 to detect ischemic heart pain (angina pectoris and myocardial infarction) for epidemiological field-surveys. 1 Since then, the RAQ has been used in many countries to detect coronary heart disease (CHD) in epidemiological research.
What causes a biphasic P wave?
A biphasic P wave in the inferior leads results from interference of the atrial conduction of Bachmann׳s bundle, which in turn results in delayed activation of the left atrium as the impulse propagated from the lower right atrium to the left atrium occurs in a caudo-cranial direction.
Is Wellens syndrome rare?
Wellens’ syndrome is a rare entity that can also present with T-wave inversions.
What does the J point differentiate?
The J point denotes the junction of the QRS complex and the ST segment on the electrocardiogram (ECG), marking the end of depolarization and beginning of repolarization.