We describe 2 cases of Mycobacterium massiliense infection after cardiac surgery. A 68-year-old man developed high-grade fever and sternal wound infection 5 weeks after aortic valve replacement. He was discharged after antibiotic treatment but readmitted with pseudoaneurysm of the aortic root. He succumbed to hemorrhage 2 weeks after reoperation. A 7-year-old boy developed endocarditis after atrial septal defect patch repair, and underwent replacement of the patch. Samples from both patients grew Mycobacterium massiliense.
A previously asymptomatic 53-year-old male presented 5 days after an acute anterior wall myocardial infarction, who was fibrinolytic naïve, with worsening dyspnea. Transthoracic echocardiographic evaluation revealed rupture of the interventricular septum and pseudoaneurysm of the left ventricle, confirmed by angiography. Coronary angiogram revealed multivessel disease. The patient underwent successful closure of ventricular septal rupture with repair of pseudoaneurysm and saphenous vein grafts to posterior descending branch of right coronary artery and obtuse marginal branch of left circumflex artery. Double ventricular ruptures following acute myocardial infarction are very rare with a reported incidence of 0.3% from various series in the revascularization era. They are also associated with exceedingly high mortality rates reaching up to 50%, even when intervened emergently.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.