BACKGROUND: The incidence of carcinoma of the distal esophagus and GE junction is rapidly increasing. A large single-center experience was reviewed to determine the impact of lymph node positivity and ratio on survival. METHODS: All patients undergoing esophagogastrectomy at Thomas Jefferson University Hospital between January 1994 and December 2004 were reviewed. Univariate and multivariate analyses were performed using log-rank and Cox proportional hazard models, and survival curves were estimated using the Kaplan-Meier method. RESULTS: Of 173 patients with invasive cancer, 123 (71%) underwent preoperative chemoradiation therapy. The largest number of patients (45%) had adenocarcinoma of the GE junction; 29% of patients had esophageal adenocarcinoma while 14% had squamous cell cancer of the esophagus. Perioperative mortality was 5.7%. Median overall survival of the entire group was 22 months and 5-year overall survival was 27%. The most significant prognostic factor for overall survival was the presence of positive LN (P = 0.01). Additionally, patients with zero involved LN had a 5-year survival of 34%, while patients with 1 to 3 positive LN and >3 positive LN had 5-year survival of 27% and 9%, respectively (P = 0.01). Finally, an increasing ratio of positive to examined LN was linearly associated with a worsening 5-year survival, (P = 0.153). CONCLUSIONS: Increasing number of positive LN in patients with esophageal cancer and increasing ratio of metastatic to examined LN portend a poor prognosis. These factors should play an important role in determining which patients receive adjuvant therapy.
BACKGROUND: The incidence of carcinoma of the distal esophagus and GE junction is rapidly increasing. A large single-center experience was reviewed to determine the impact of lymph node positivity and ratio on survival. METHODS: All patients undergoing esophagogastrectomy at Thomas Jefferson University Hospital between January 1994 and December 2004 were reviewed. Univariate and multivariate analyses were performed using log-rank and Cox proportional hazard models, and survival curves were estimated using the Kaplan-Meier method. RESULTS: Of 173 patients with invasive cancer, 123 (71%) underwent preoperative chemoradiation therapy. The largest number of patients (45%) had adenocarcinoma of the GE junction; 29% of patients had esophageal adenocarcinoma while 14% had squamous cell cancer of the esophagus. Perioperative mortality was 5.7%. Median overall survival of the entire group was 22 months and 5-year overall survival was 27%. The most significant prognostic factor for overall survival was the presence of positive LN (P = 0.01). Additionally, patients with zero involved LN had a 5-year survival of 34%, while patients with 1 to 3 positive LN and >3 positive LN had 5-year survival of 27% and 9%, respectively (P = 0.01). Finally, an increasing ratio of positive to examined LN was linearly associated with a worsening 5-year survival, (P = 0.153). CONCLUSIONS: Increasing number of positive LN in patients with esophageal cancer and increasing ratio of metastatic to examined LN portend a poor prognosis. These factors should play an important role in determining which patients receive adjuvant therapy.
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