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Long-term survival of the middle and lower thoracic esophageal cancer patients after surgical treatment through left or right thoracic approach

  
@article{JTD21440,
	author = {Ding Yang and You-Sheng Mao and Ke-Lin Sun and Ju-Wei Mu and Qi Xue and Da-Li Wang and Yu- Shun Gao and Jun Zhao and Xiang-Yang Liu and De-Kang Fang and Jian Li and Yong-Gang Wang and Liang-Ze Zhang and Jin- Feng Huang and Bing Wang},
	title = {Long-term survival of the middle and lower thoracic esophageal cancer patients after surgical treatment through left or right thoracic approach},
	journal = {Journal of Thoracic Disease},
	volume = {10},
	number = {5},
	year = {2018},
	keywords = {},
	abstract = {Background: Esophageal cancer is one of the most prevalent malignancies with a high incidence and mortality in China, the main treatment for esophageal cancer at present is still surgery-based multimodality treatment, and surgery is still the most effective measure. However, the modes of surgical treatment for esophageal cancer have been diverse. The surgical approaches can be mainly divided into the left thoracic approach and right thoracic approach in China. The long-term survival of the patients treated through right approach was reported better than that through left thoracic approach, but until now no statistically significant difference was found between two approaches, especially, for those with middle and lower thoracic esophageal cancer without suspected upper mediastinal lymph node metastasis in preoperative examinations, no definite conclusion have been made on selection of the approach, therefore, this studies try to compare the long-term survival between two approaches .
Methods: The data of 402 cases with complete resection and two-field lymph node dissection from January, 2011 to December, 2011 in the Cancer Hospital, Chinese Academy of Medical Sciences was retrospectively reviewed and analyzed. Propensity score matching (PSM) analysis and life-table in SPSS 22.0 and Stata 14.0 were used to analyze the survival. 
Results: Totally, 402 cases were surgically treated either via left or right thoracic approach. The overall 5-year survival rate of this series was 38%, it was 37% in 281 cases surgically treated through left approach, and 39% in 121 cases through right approach (P=0.908). The 5-year survival of 256 patients without suspected lymph node metastasis in the upper mediastinum based on the preoperative examinations surgically treated through left approach was 38% versus 43% of 88 cases through right approach (P=0.404). After PSM, the 5-year survival of 110 cases surgically treated through left approach was 32% versus 40% of another matched 110 cases through right approach (P=0.146). for the patients without suspected lymph node metastasis in the upper mediastinum based on preoperative examinations, the 5-year survival of 88 surgically treated through left approach was 33% versus 44% of another matched 88 cases through right approach (P=0.239).
Conclusions: For the middle and lower thoracic esophageal cancer patients, whether or not who has suspected lymph node metastasis in the upper mediastinum based on preoperative CT and EUS, the surgical treatment through right thoracic approach can achieve better but not significantly better overall survival than that through left thoracic approach. Further prospective randomized clinical trials are still needed to verify this disputed issue on approach selection.},
	issn = {2077-6624},	url = {http://jtd.amegroups.com/article/view/21440}
}