Distribution and Prevalence of Locoregional Recurrence after Video-Assisted Thoracoscopic Surgery for Primary Lung Cancer

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BackgroundThe aim of this study is to evaluate cases with locoregional recurrence after video-assisted thoracoscopic surgery (VATS) for primary lung cancer.MethodsWe reviewed 248 patients with primary lung cancer who underwent lobectomy or segmentectomy with mediastinal lymph node dissection by VATS between January 2005 and December 2011. Locoregional recurrence is defined as per its occurrence in (1) bronchial stump or lung parenchymal cut end, (2) ipsilateral pleura, and (3) ipsilateral hilar and mediastinal lymph nodes, and we analyzed recurrence rate and significant associated factors for locoregional recurrence by logistic regression analysis.ResultsThere were 47 cases of postoperative recurrence, which consisted of 26 distant, 6 locoregional and distant, and 15 locoregional recurrences. The locoregional recurrence rate was 6.0%. Of the 15 locoregional recurrence cases, there were two cases of bronchial stump and lung parenchyma cut end (0.4%), five cases of ipsilateral pleura (2.0%), and eight cases of ipsilateral hilar and mediastinal lymph nodes (3.2%). Pleural and lymphovascular invasion and advanced stages were significant associated factors in univariate analysis. Multivariate analysis revealed that advanced stages were only a significant associated factor for locoregional recurrence (p < 0.01, odds ratio: 3.3).ConclusionAlthough locoregional recurrence rates of our surgical treatments for primary lung cancer by VATS might be acceptable, we should explore more effective modalities against pathologically proven local advanced lung cancer for preventing not only distant but also locoregional recurrences.

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