TY - CHAP M1 - Book, Section TI - Chapter 28. Surgical Treatment of Complications of Acute Myocardial Infarction: Postinfarction Ventricular Septal Defect and Free Wall Rupture A1 - Agnihotri, Arvind K. A1 - Madsen, Joren C. A1 - Daggett, Jr., Willard M. A2 - Cohn, Lawrence H. PY - 2012 T2 - Cardiac Surgery in the Adult, 4e AB - Rupture of the ventricular chamber (septum or free wall) after myocardial infarction is a relatively infrequent condition with high mortality. An acute postinfarction VSD is a perforation of the muscular ventricular septum occurring in an area of acutely infarcted myocardium. A ventricular septal rupture may be termed chronic when it has been present for more than 4 to 6 weeks. A postinfarction ventricular rupture is a perforation of the ventricular free wall occurring in an area of acutely infarcted myocardium. These conditions, resulting from transmural infarction, may cause rapid hemodynamic compromise and early death precluding surgical repair. Free wall rupture can result in tamponade and sudden cardiovascular collapse. In ventricular septal rupture, there is a variable amount of left-to-right shunting, but such defects typically lead to symptoms of heart failure. The clinical presentation ranges from an asymptomatic murmur to cardiogenic shock and sudden death. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accesssurgery.mhmedical.com/content.aspx?aid=55918915 ER -