Traumatic tricuspid regurgitation. Long-term survival.

Three case histories of patients with isolated traumatic tricuspid regurgitation are reported. Clinical features are compared and contrasted to the I3 cases previously reported. The benign nature of the lesion is emphasized by the long-term follow-up periods of 39, I3, and 31 years respectively. The presence of a normal systolic pressure in the right ventricle may be one reason why isolated severe tricuspid regurgitation can have such a benign clinical course. The unimpressive and atypical systolic murmur led to a delay in the correct diagnosis of these three patients.