Wellens syndrome
Pronunciation: WELL-ens
ECG pattern indicating critical left anterior descending artery stenosis requiring urgent intervention.
Full Definition
Wellens syndrome, also known as Wellens sign or LAD syndrome, is a distinctive electrocardiographic pattern that indicates critical stenosis of the proximal left anterior descending coronary artery. The syndrome is characterized by specific T-wave changes in leads V2-V3, typically appearing as deeply inverted or biphasic T-waves in patients who are pain-free at the time of ECG acquisition. There are two types: Type A shows biphasic T-waves, while Type B shows deeply inverted T-waves. Recognition of Wellens syndrome is crucial in emergency cardiology as these patients have a high risk of extensive anterior wall myocardial infarction if not promptly treated with percutaneous coronary intervention.
Usage
Usage note: Named after Dutch cardiologist Hein Wellens; capitalize as proper noun.
In Context
- "The ECG demonstrated classic Wellens syndrome Type B pattern in the precordial leads." — Emergency physician documentation
- "Recognition of Wellens syndrome prompted immediate cardiology consultation for urgent catheterization." — Case presentation