Paraaortic lymph node dissection for gastric cancer in 244 consecutive cases

Area of Science:

• Oncology
• Surgical Oncology
• Gastroenterology

Background:

• Advanced gastric cancer frequently involves paraaortic lymph nodes (over 20%).
• The therapeutic benefit of extensive paraaortic lymphadenectomy in these cases remains debated.
• This study prospectively evaluates the role of paraaortic lymphadenectomy in advanced gastric cancer.

Purpose of the Study:

• To assess the safety and efficacy of paraaortic lymphadenectomy in advanced gastric cancer.
• To identify prognostic factors influencing outcomes after this procedure.
• To establish criteria for patient selection for paraaortic lymphadenectomy.

Main Methods:

• A prospective study involving 244 advanced gastric cancer patients undergoing gastrectomy with paraaortic lymphadenectomy (1991-2004).
• Patients were stratified into three groups based on surgical period to analyze trends.
• Data collected included mortality, complications, and long-term survival.

Main Results:

• Overall mortality decreased significantly from 7.1% to 0% across the study periods.
• Postoperative complications occurred in 35.6%, with age and complications predicting operative death.
• Tumor invasion depth correlated with nodal metastasis; 10 patients with positive nodes achieved 5-year survival.
• Operative curability and complications were key prognostic factors.

Conclusions:

• Paraaortic lymph node dissection is recommended for gastric cancers invading beyond the serosa.
• Pancreatectomy should be avoided due to associated complications.
• Careful patient selection and management are crucial for optimizing outcomes.