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Three-field vs two-field lymph node dissection for esophageal cancer: a meta-analysis
Guo-Wei Ma1, Dong-Rong Situ1, Qi-Long Ma1
1Guo-Wei Ma, Dong-Rong Situ, Qi-Long Ma, Hao Long, Lan-Jun Zhang, Peng Lin, Tie-Hua Rong, Department of Thoracic Surgery, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Guangzhou 510060, Guangdong Province, China.
World Journal of Gastroenterology
|December 31, 2014
Summary
Three-field lymphadenectomy (3FL) improves survival rates for esophageal carcinoma but increases risks of nerve palsy and anastomosis leaks. Further research is needed due to outcome heterogeneity.
Area of Science:
- Oncology
- Surgical Oncology
- Gastroenterology
Background:
- Esophageal carcinoma treatment often involves lymphadenectomy.
- The extent of lymphadenectomy, specifically comparing 2-field (2FL) versus 3-field (3FL) approaches, impacts patient outcomes.
- Optimizing surgical strategy is crucial for improving survival and minimizing complications.
Purpose of the Study:
- To evaluate the efficacy of 3-field lymphadenectomy (3FL) compared to 2-field lymphadenectomy (2FL) in esophageal carcinoma patients.
- To analyze the impact of 3FL on overall survival rates and postoperative complications.
Main Methods:
- A meta-analysis was performed on data from randomized controlled trials (RCTs) and observational studies.
- Literature search included PubMed, Cochrane, and EMBASE databases.
- Key outcomes assessed were 1-, 3-, and 5-year survival rates and complications like nerve palsy, anastomosis leak, pulmonary issues, and chylothorax.
Main Results:
- The meta-analysis included 2 RCTs and 18 observational studies (>7000 patients).
- 3FL demonstrated significant improvements in 1-, 3-, and 5-year overall survival rates (P < 0.01).
- 3FL was associated with increased risks of recurrent nerve palsy (P = 0.02) and anastomosis leak (P = 0.09), but not pulmonary complications or chylothorax.
Conclusions:
- Three-field lymphadenectomy enhances overall survival for esophageal carcinoma.
- However, 3FL is linked to a higher incidence of specific postoperative complications.
- High heterogeneity in study outcomes necessitates caution in drawing definitive conclusions.
