Xue-Hai Liu1, Yi Hu2, Kun-Kun Li1, Ying-Jian Wang1, Yao-Guang Jiang1, Wei Guo3. 1. Department of Thoracic Surgery, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, People's Republic of China. 2. Department of Anesthesiology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, People's Republic of China. 3. Department of Thoracic Surgery, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, People's Republic of China. gyguowei@hotmail.com.
Abstract
BACKGROUND: The aim of this study is to summarize the causes and implications of intraoperative conversion from minimally invasive esophagectomy (MIE) to open thoracotomy, and to evaluate the effect on long-term survival. METHODS: There were 293 thoracoscopic esophagectomies for esophageal squamous cell carcinoma (ESCC) of the thoracic esophagus performed by the authors from September 2009 to August 2015. Totally, 257 patients were enrolled in this study. These patients were divided into two groups (those underwent complete MIE and those converted to open thoracotomy) and then compared. A standardized preoperative evaluation, as well as a postoperative method of following at a regular frequency were adopted for all of these patients. The clinicopathologic characteristics and the perioperative variables were retrospectively analyzed. Univariate and multivariate analyses were performed to identify prognostic factors. And the Kaplan-Meier method was used to compare survival differences. RESULTS: There were 231 patients (89.9%) underwent successful thoracoscopic esophagectomy (Group 1), and 26 cases (10.1%) required conversion to open procedure (Group 2). The majority of conversion (73.1%, 19/26) occurred in the initial 100 cases. No significant difference in background or clinicopathologic factors between the two groups was observed, but patients in Group 2 had significantly longer operative time and more operative blood loss. Among the 26 patients of Group 2, there were nine cases that need emergent conversion for various reasons. And the most common cause for emergent conversion was intraoperative bleeding. Univariate and multivariate analyses all demonstrated that intraoperative conversion did not significantly influence the overall or recurrence-free survival of these patients. CONCLUSIONS: Univariate analysis and multivariate Cox proportional hazard regression analysis indicated that intraoperative conversion did not significantly influence the OS and RFS rate of these patients. Our results demonstrated that the intraoperative conversion did not affect the long-term survival of patients underwent MIE for ESCC.
BACKGROUND: The aim of this study is to summarize the causes and implications of intraoperative conversion from minimally invasive esophagectomy (MIE) to open thoracotomy, and to evaluate the effect on long-term survival. METHODS: There were 293 thoracoscopic esophagectomies for esophageal squamous cell carcinoma (ESCC) of the thoracic esophagus performed by the authors from September 2009 to August 2015. Totally, 257 patients were enrolled in this study. These patients were divided into two groups (those underwent complete MIE and those converted to open thoracotomy) and then compared. A standardized preoperative evaluation, as well as a postoperative method of following at a regular frequency were adopted for all of these patients. The clinicopathologic characteristics and the perioperative variables were retrospectively analyzed. Univariate and multivariate analyses were performed to identify prognostic factors. And the Kaplan-Meier method was used to compare survival differences. RESULTS: There were 231 patients (89.9%) underwent successful thoracoscopic esophagectomy (Group 1), and 26 cases (10.1%) required conversion to open procedure (Group 2). The majority of conversion (73.1%, 19/26) occurred in the initial 100 cases. No significant difference in background or clinicopathologic factors between the two groups was observed, but patients in Group 2 had significantly longer operative time and more operative blood loss. Among the 26 patients of Group 2, there were nine cases that need emergent conversion for various reasons. And the most common cause for emergent conversion was intraoperative bleeding. Univariate and multivariate analyses all demonstrated that intraoperative conversion did not significantly influence the overall or recurrence-free survival of these patients. CONCLUSIONS: Univariate analysis and multivariate Cox proportional hazard regression analysis indicated that intraoperative conversion did not significantly influence the OS and RFS rate of these patients. Our results demonstrated that the intraoperative conversion did not affect the long-term survival of patients underwent MIE for ESCC.
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