Lymph node dissection in curative gastrectomy for advanced gastric cancer

Area of Science:

• Oncology
• Surgical Oncology
• Gastroenterology

Background:

• Gastric cancer is a leading cause of cancer death globally.
• Surgical resection with lymph node dissection is the primary curative treatment.
• The optimal extent of lymph node dissection for gastric cancer remains controversial.

Purpose of the Study:

• To review current literature on lymphadenectomy extent for advanced gastric cancer.
• To compare D1 versus D2 lymph node dissection in gastric cancer surgery.
• To evaluate the safety and efficacy of D2 dissection in Western patients.

Main Methods:

• Literature review of studies comparing D1 and D2 lymph node dissection for gastric cancer.
• Analysis of data on morbidity, mortality, and survival rates.
• Examination of training and outcomes for Western surgeons performing D2 dissection.

Main Results:

• D2 dissection is standard in East Asia but controversial in the West due to perceived higher risks.
• Western studies suggest D2 dissection can be performed with acceptable morbidity and mortality.
• Evidence indicates potential survival benefits with D2 dissection when performed safely.

Conclusions:

• D2 lymph node dissection may be beneficial for advanced gastric cancer in Western countries.
• Safe implementation of D2 dissection requires appropriate surgical training.
• Further research is warranted to establish D2 dissection as a standard in Western practice.