Postoperative gastrointestinal dysfunction after 2-field versus 3-field lymph node dissection in patients with esophageal cancer.

PURPOSE: Using an instrument we developed to assess postoperative dysfunction objectively (Surg Today 2005;35:535-42), we compared postoperative dysfunction after 2 - field versus 3 - field lymph node dissection retrospectively, in patents undergoing esophageal cancer surgery.
METHODS: Subjects were selected randomly from among patients who had undergone radical surgery for squamous cell carcinoma of the thoracic esophagus followed by reconstruction with a gastric tube and a cervical anastomosis. Patients rated 32 items related to postoperative dysfunction according to a 5-grade scale. Postoperative gastrointestinal dysfunction was evaluated on the basis of the total score and the scores for seven symptom categories: decreased physical activity, symptoms of reflux, dumping-like syndrome, nausea and vomiting, passage dysfunction, pain, and diarrhea or soft feces.
RESULTS: We studied 42 patients, 22 of whom underwent 2-field lymph node dissection and 20 of whom underwent 3-field dissection. The total gastrointestinal dysfunction score was significantly higher in the 3-field group than in the 2-field group (78.4 +/- 14.1 points vs 67.9 +/- 16.9 points, P = 0.038). When we analyzed the data according to the symptom categories, the 3-field group had higher scores for decreased physical activity, symptoms of reflux, dumping-like syndrome, nausea and vomiting, and passage dysfunction.
CONCLUSION: Three-field lymph node dissection was associated with greater postoperative gastrointestinal dysfunction than 2-field lymph node dissection. Thus, the preoperative identification of those patients with esophageal cancer who are most likely to benefit from concurrent cervical lymph node dissection is essential.