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Traumatic aorto-right atrial fistula and tricuspid valve rupture. Post-operative cardiac and respiratory support with extracorporeal membrane oxygenation

^a CHU de Reims, Hôpital Robert Debré, Service de Chirurgie Thoracique et Cardiovasculaire, Centre Hospitalier Régional et Universitaire, avenue du Général Koenig, 51092-Reims Cedex, France
^b Service de Chirurgie Thoracique et Cardiovasculaire, Hôpital Jean-Minjoz, Boulevard Fleming, 25000 Besançon, France

*Corresponding author. Tel.: +33 3 26 78 71 05; fax: +33 3 26 78 32 73.

E-mail address: srubin{at}chu-reims.fr (S. Rubin).

We report the case of a 30-year-old man admitted for a crushed chest trauma. The echocardiography found an aorto-right atrial fistula, a tricuspid valve rupture and a myocardial contusion. The fistula was closed using an autologous pericardial patch and a bioprosthetic tricuspid valve replacement was performed because the lesions did not allow for any valvular sparing. Because of the proximity between the right coronary ostium and the rupture, a venous aorto-right coronary bypass was performed. The ostium was also closed by the pericardial patch. A peripheral ECMO was implanted at the end of the surgical repair because of a right ventricle dysfunction and a respiratory failure related to severe bilateral pulmonary contusions. A few days later, renal, hepatic and coagulation failures were also noticed, justifying hemodialysis and transfusions. Despite an initial worsening of these five organ failures, the outcome was finally favorable and the patient was discharged 108 days after surgery. A 3-year follow-up revealed a complete recovery of all organ failures. To conclude, we firmly believe that the ECMO can be successfully applied in selected cases of severe right ventricular dysfunction and respiratory failure after cardiac surgery.

Key Words: Aortic root; Atrium; Trauma; Circulatory assistance temporary; Tricuspid valve; Rupture