Pulmonary Function After Lobectomy: Video-Assisted Thoracoscopic Surgery Versus Muscle-Sparing Mini-thoracotomy |
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Authors: | Katsuo Usuda Sumiko Maeda Nozomu Motomo Makoto Tanaka Masakatsu Ueno Yuichiro Machida Motoyasu Sagawa Hidetaka Uramoto |
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Institution: | 1.Department of Thoracic Surgery,Kanazawa Medical University,Ishikawa,Japan |
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Abstract: | Although pulmonary function was better after video-assisted thoracoscopic surgery (VATS) lobectomy than after open thoracotomy lobectomy, it is unclear whether postoperative pulmonary function after VATS lobectomy is better than that after mini-thoracotomy lobectomy. The aim of this study is to determine whether the former is better than the latter. VATS lobectomies were performed using endoscopic techniques through a 3–4-cm skin incision spread by a silicon rubber retractor and two or three trocars. Mini-thoracotomy lobectomies were performed through a 7–12-cm skin incision spread by rib retractors made of metal and one or two trocars. Pulmonary function tests were performed a week before surgery and 3 months after surgery. There were 14 males and 11 females in VATS lobectomy and 32 males and 30 females in mini-thoracotomy lobectomy. For lobe location (right upper/right lower/left upper/left lower), there were 12/1/8/4 in VATS lobectomy and 16/19/13/14 in mini-thoracotomy lobectomy, respectively. The percent predicted postoperative forced vital capacity (FVC) (postoperative FVC/predicted postoperative FVC?×?100) (110?±?15 %) of VATS lobectomy was significantly higher than that (101?±?16 %) of mini-thoracotomy lobectomy (P?=?0.0124). The percent predicted postoperative forced expiratory volume in 1 s (FEV1) (postoperative FEV1/predicted postoperative FEV1?×?100) (110?±?15 %) of VATS lobectomy was not significantly higher than that (104?±?15 %) of mini-thoracotomy lobectomy (P?=?0.091). Multiple regression analysis revealed that operative procedure (VATS lobectomy or mini-thoracotomy lobectomy) was the only significant variable contributing to percent predicted postoperative FVC (P?=?0.0073) and percent predicted postoperative FEV1 (P?=?0.0180). Postoperative FVC after VATS lobectomy is better than after mini-thoracotomy lobectomy. |
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