Buttressing the staple line in lung volume reduction surgery: a randomized three-center study

Background. The intention of buttressing the staple line in lung volume reduction surgery is to reduce air leaks and to shorten the hospital stay. A randomized three-center study was carried out to test this hypothesis.

Methods. Sixty-five patients with a mean age of 59.2 ± 1.2 years underwent bilateral lung volume reduction surgery by video-assisted thoracoscopy using endoscopic staplers (ET 45B; Ethicon Endo-Surgery, Cincinnati, OH) either without or with bovine pericardium for buttressing (Peri-Strips Dry; Bio-Vascular, Inc, Saint Paul, MN). There were no differences between the control and treatment groups in lung function, degree of dyspnea, and arterial blood gases before and 3 months after LVRS.

Results. Seven patients (3 in the treatment group) needed a reoperation because of persistent air leak. The median duration of air leaks was shorter in the treatment group (0.0 day [range, 0 to 28 days versus 4 days [range, 0 to 27 days); p < 0.001), confirmed by a shorter median drainage time in this group (5 days [range, 1 to 35 days] versus 7.5 days [range, 2 to 29 days); p = 0.045). Hospital stay was comparable between the two groups (9.5 days [range, 6 to 44 days] versus 12.0 days [range, 5 to 46 days]; p = 0.14).

Conclusions. Buttressing the staple line significantly shortens the duration of air leaks and the drainage time. As hospital stay did not differ significantly between the two groups, cost-effectiveness may depend on the local situation.