Interventricular Septal Defect Secondary to Nonpenetrating Injury

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Abstract
Introduction Interventricular septal defects resulting from nonpenetrating trauma are rarely diagnosed antemortem. In 1952, Pollock et al.7 reviewed the literature and found 12 cases to which they added 1 autopsied case of isolated rupture of the healthy interventricular septum. Recently, Cary and Hurst 2 reported one additional case diagnosed at autopsy. The first recorded case established by cardiac catheterization was reported by Guilfoil3 in 1953. We have not found any other catheter-proven cases resulting from nonpenetrating injury. Two surviving cases are presented. Report of Cases CASE 1. —A 13-year-old boy was injured by a truck wheel passing over his thorax on Aug. 16, 1954. When he was hospitalized, a loud systolic murmur was audible over the entire precordium. Chest x-ray demonstrated pulmonary contusion, with normal cardiac size and configuration (Fig. 1A). Prior to this accident, the child was active and in good health. Apparent recovery occurred in two

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