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Updated: Mar 22, 2026

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Published on: July 18, 2014
Traumatic ventricular septal rupture associated with rapid progression of heart failure despite low Qp/Qs ratio: a
Kosuke Murakawa1, Susumu Yoshida2, Takayuki Okada3
1Department of Medicine II, Kansai Medical University, Hirakata, Japan. murakako@hirakata.kmu.ac.jp.
Background:
Ventricular septal rupture (VSR) secondary to blunt chest trauma is rare and associated with a diverse range of symptoms and clinical courses as well as disease severity. We present a case of traumatic VSR in which rapid progression of heart failure was observed in spite of relatively low pulmonary to systemic blood flow (Qp/Qs) ratio.
Case Presentation:
A 40-year-old male was transported to the emergency department approximately 12 h after blunt chest trauma. VSR was diagnosed by echocardiography, and right heart catheterization revealed a Qp/Qs ratio of 1.52. Although medical treatment was initially attempted, subsequent rapid progression of heart failure necessitated emergent surgical repair of VSR.
Conclusions:
Because small, asymptomatic VSR often close spontaneously, surgical repair of traumatic VSR is indicated when the shunt rate is relatively large or heart failure is present. However, the present case highlights the need to consider emergent surgical repair of traumatic VSR, even when the shunt rate is relatively small.
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