Previously fatal in the majority of cases, traumatic interventricular communications are now curable by surgery. This is illustrated by the case described here of a 20 year old man. 62 other cases were found in the literature. A systolic murmur is the essential feature in diagnosis but it may be discovered some time after the accident. The demonstration of cardiomegaly has less diagnostic significance than ECG signs suggestive of an infarction. Haemodynamic studies are essential to confirm the diagnosis and to provide an accurate assessment of the lesion. The spontaneous course is serious since death results in two thirds of cases. Surgery is indicated, other than in well tolerated forms with a minimal shunt. The approach used has almost always been right cardiotomy. However, incision of the left ventricle offers better visibility of the lesions which may be masked by the papillary muscles when a right-sided approach is adopted. This was used in the present case with an excellent result since the patient was able to continue the military career for which he had opted.
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