Video-assisted thoracoscopic surgery (VATS) lobectomy has become a standard procedure for lung cancer treatment. Conversion-related factors and learning curve impacts, were poorly described. The aim of this study was to review the reasons and related factor for conversion in VATS lobectomy and the impact on this of the surgeon's learning curve. From June 2009 to May 2014, 154 patients who underwent a VATS lobectomy were included in our study. Patients' characteristics, pathology background, operative times, overall length of stay, overall morbidity and type of major complications were recorded for all patients and compared between non converted (n = 133) and converted (n = 21) patients. To evaluate surgeon's learning curve, we analyzed rates and causes of conversion in the first period (first 77 patients) and in the last period (78-154 patients). Patients characteristics were similar between converted and non-converted groups. Patients who were converted to open thoracotomy presented more frecuently tumors >3 cms (P = 0.02). The average of operative times and the length of stay were not significantly different between groups. Overall morbidity and major complications were also similar in both groups. There were no impact of surgeon's learning curve in overall rate conversion in both groups. Emergency conversion was always secondary to vascular accidents, all in the first group (p = 0.059). Surgeons should be expecting to perform a conversion to a thoracotomy in patients who present in preoperative studies, tumors greater than 3 cms. Learning curve only affected the emergency conversion, occurred all in the first half of our series.

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We report the laparoscopic transhiatal thoracic duct ligation to solve postoperative chylothorax after right total pleurectomy for malignant diffuse mesothelioma.

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