myocardial edema
Pronunciation: my-oh-KAR-dee-al eh-DEE-mah
Abnormal accumulation of fluid within the myocardial tissue, commonly occurring during cardiac surgery and affecting ventricular function.
Full Definition
Myocardial edema refers to the abnormal accumulation of fluid within the myocardial tissue, a common occurrence during cardiac surgery that can significantly impact ventricular function and patient outcomes. This condition typically develops due to ischemia-reperfusion injury, inflammatory responses, or inadequate myocardial protection during cardiopulmonary bypass. The edema increases myocardial stiffness, impairs diastolic filling, and can contribute to postoperative low cardiac output syndrome. Clinical manifestations include increased ventricular wall thickness on echocardiography, elevated filling pressures, and reduced cardiac output. Treatment strategies focus on prevention through optimal myocardial protection, and management through diuretics, ultrafiltration, or mechanical support when severe. Medical editors should recognize this as distinct from pericardial effusion or pleural effusion.
Usage
Usage note: Distinguish from other forms of cardiac fluid accumulation; may be quantified by wall thickness measurements.
In Context
- "Postoperative echocardiography revealed significant myocardial edema with impaired diastolic function." — clinical assessment
- "The development of myocardial edema following prolonged cardiopulmonary bypass contributed to difficulty weaning from mechanical support." — case discussion