Swan-Ganz catheter induced pulmonary artery perforation during cardiac surgery concerning two cases.

: Two case reports describing patients having cardiac operations under extra corporeal circulation are presented. At the completion of the operation, a massive hemoptysis occurred in both patients after a Swan-Ganz catheter had perforated the pulmonary artery. A hemostasis lobectomy was then immediately required. The immediate and long term prognosis seems satisfactory. This is an unusual but serious complication. The incidence of this complication varies between 0.06 and 0.2%. The more frequently related risk factors include people over the age of 60, pulmonary artery hypertension, anticoagulant therapy, hypothermia and manipulation of the heart by the surgeon. When this accident occurs, many authors suspect the balloon. An early diagnosis is essential in the case of a major or even a minor hemoptysis, because this complication may be a lethal one as the mortality rate may reach 50%. According to us, the appropriate therapy which would reduce this mortality is a surgical one (hemostasis lobectomy).