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Ann Thorac Surg 2000;70:234-239
© 2000 The Society of Thoracic Surgeons

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Original articles: General thoracic

Lobectomy with tangential pulmonary artery resection without regard to pulmonary function

^a Section of General Thoracic Surgery, Division of Cardiothoracic Surgery, Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
^b Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA

Address reprint requests to Dr Shrager, Division of Cardiothoracic Surgery, Hospital of the University of Pennsylvania, 6 Silverstein, 3400 Spruce St, Philadelphia, PA 19104
e-mail: jshrag{at}mail.med.upenn.edu

Presented at the poster session of the Thirty-sixth Annual Meeting of The Society of Thoracic Surgeons, Ft Lauderdale, FL, Jan 31–Feb 2, 2000.

Background. Non–small cell carcinoma of the lung invading the pulmonary artery (PA) has traditionally been treated by pneumonectomy. Although PA resection and reconstruction (PAR) has begun to gain acceptance, previous series of PAR by the simplest technique of tangential excision and primary repair have been unfavorable. We have maintained a policy of performing PAR preferentially whenever anatomically feasible, and usually this has been possible by tangential excision and primary repair. This study sought to determine if this approach is sound.

Methods. Retrospective clinical and pathologic review.

Results. Thirty-three PARs were performed from 1992 to 1999. The patients, followed 6 to 65 months (mean 25), were aged 36 to 80 years (mean 61), and their tumors were pathologic stage IB (n = 7), IIB (n = 13), IIIA (n = 9), and IIIB (n = 4). The mean preoperative forced expiratory volume in 1 second was 70% predicted. The procedures included 14 bronchial sleeve lobectomies with PAR and 19 simple lobectomies with PAR. The PARs were performed without heparinization and included 19 tangential excisions with primary closure, 11 larger tangential excisions with pericardial patch closure, and 3 sleeve resections. There were no operative deaths and 2 (6.1%) early major complications, all unrelated to the PAR. Thirteen patients (39%) had early minor complications. Four-year Kaplan-Meier survival was 48.3% for stages I/II and 45% for stage III. Ipsilateral, central, intrathoracic recurrence occurred in 3 patients (9.1%).

Conclusions. These data are not dramatically different from those reported for standard resections. Although the numbers are small, the results suggest that lobectomy with PAR by tangential excision is an acceptable alternative to pneumonectomy whenever anatomically possible.

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