hypokinesis
Pronunciation: high-po-kih-NEE-sis
Reduced but present wall motion and thickening of a myocardial segment during systole.
Full Definition
Hypokinesis refers to diminished contractility of a myocardial segment characterized by reduced wall motion and systolic thickening compared to normal segments. This finding is commonly observed in areas of myocardial ischemia, previous infarction, or cardiomyopathy. Wall motion is typically graded on a standardized scale where normal motion scores 1, hypokinesis scores 2, akinesis (absence of motion) scores 3, and dyskinesis (paradoxical motion) scores 4. The presence and extent of hypokinesis can indicate the severity of underlying coronary artery disease or myocardial dysfunction and helps guide therapeutic decisions.
Usage
Usage note: Distinguish clearly from akinesis (no motion) and dyskinesis (paradoxical motion).
In Context
- "Echocardiography demonstrated mild hypokinesis of the anterior wall segments." — Cardiology consultation report
- "Stress testing revealed inducible hypokinesis in the inferior territory suggesting RCA disease." — Nuclear stress test report