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Ann Thorac Surg 2005;79:433-437
© 2005 The Society of Thoracic Surgeons

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Original article: General thoracic

Risk of a Right Pneumonectomy: Role of Bronchopleural Fistula

^a Division of Thoracic Surgery, Toronto General Hospital, Toronto, Ontario, Canada
^b Department of Biostatistics, Princess Margaret Hospital, Toronto, Ontario, Canada

Accepted for publication July 6, 2004.

^* Address reprint requests to Dr Darling, Division of Thoracic Surgery, Toronto General Hospital, 200 Elizabeth St, Toronto, Ontario M5G 2C4, Canada (E-mail: gail.darling{at}uhn.on.ca).

BACKGROUND: The purpose of this study is to compare the morbidity and mortality of right versus left pneumonectomy.

METHODS: We used a retrospective review of pneumonectomies performed during the period 1990 to 2000 and included a meta-analysis of relevant literature.

RESULTS: There were 187 pneumonectomies: 68 right, 119 left. The primary study end point was in-hospital death. There were 11 deaths: 7 (10.3%) right, 4 (3.3%) left (p = 0.10). Six deaths were attributable to bronchopleural fistula and its subsequent complications. The risk of bronchopleural fistula was higher on the right (9 [13.2%]) versus left (6 [5.0%]; p = 0.0472), as was the mortality associated with bronchopleural fistula (4 of 9 [44%] right versus 2 of 6 [33%] left). Right pneumonectomies were more likely to require an intrapericardial or extended dissection (p = 0.003), hand-sewn bronchial closure (p < 0.0001), or the closure buttressed (p < 0.0001). By univariate analysis, factors associated with an increased mortality were bronchopleural fistula (p < 0.0001), hand-sewn closure (p = 0.001), and a history of smoking (p = 0.01). By multivariate analysis, the most important factor was bronchopleural fistula (odds ratio, 43.3; 95% confidence limits, 4.2 to 441.9; p = 0.002). A meta-analysis combining our results with those from the literature found increased mortality of right pneumonectomy with a relative risk of 3.39 (95% confidence limits, 2.10 to 5.48; p < 0.00001).

CONCLUSIONS: Right pneumonectomy is associated with a higher mortality even in the absence of induction therapy. This is primarily related to the increased risk of bronchopleural fistula on the right. The increased number of bronchopleural fistulas on the right may be attributable to more extensive resection. Addressing technical factors that contribute to early bronchopleural fistula may reduce the mortality of right pneumonectomy.

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