title: Right ventricular free wall dissection as a rupture tract in left ventricular rupture during acute myocardial infarction.
abstract: Three rare cases of cardiac rupture with right ventricular wall dissection during acute myocardial infarction (AMI) were reported. The cases comprised 2% among our 148 previously reported postinfarction cardiac ruptures with sudden death. The dissections occurred in hearts with biventricular inferior wall AMI and developed between the superficial layers and the deeper layers of inferior wall of the right ventricle. All had an endocardial tear at the basal septum where it meets the inferior free wall of the left ventricle, and had an epicardial tear on the middle inferior wall of the right ventricle. Based on the evidence of the ages of the thrombi of the rupture tracts, delayed epicardial rupture was found besides that soon after the right ventricular dissection.
authors.affiliation: Department of Forensic Medicine, Saitama Medical University, Saitama, Japan; Tokyo Medical Examiner's Office, Tokyo, Japan. Electronic address: takaaya@saitama-med.ac.jp.
authors.forename: Aya
authors.initials: A
authors.lastname: Takada
authors.affiliation: Department of Forensic Medicine, Saitama Medical University, Saitama, Japan; Tokyo Medical Examiner's Office, Tokyo, Japan; Department of Forensic Medicine, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Saito
authors.affiliation: Department of Forensic Medicine, Saitama Medical University, Saitama, Japan; Tokyo Medical Examiner's Office, Tokyo, Japan; Department of Pathology, Sakakibara Heart Institute, Tokyo, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Murai
authors.affiliation: Tokyo Medical Examiner's Office, Tokyo, Japan; Department of Legal Medicine, School of Medicine, Toho University, Tokyo, Japan.
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Kurosaki
authors.affiliation: Department of Legal Medicine, Kitasato University School of Medicine, Kanagawa, Japan.
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Kurihara
authors.affiliation: Tokyo Medical Examiner's Office, Tokyo, Japan.
authors.forename: Akihiko
authors.initials: A
authors.lastname: Hamamatsu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001344:Autopsy; D016757:Death, Sudden, Cardiac; D005260:Female; D006341:Heart Rupture / Q000209:etiology / Q000473:pathology*; D006352:Heart Ventricles / Q000473:pathology*; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications*
keywords: Cardiac rupture; Dissection; Intramyocardial dissecting hematoma; Myocardial infarction; Right ventricle; Sudden death