Endoscopic ultrasound in esophageal carcinoma: comparison with multislice computed tomography and importance in the clinical decision making process.

AIM: As resective surgery for oesophageal carcinoma is only appropriate for a selected cohort of patients, preoperative staging plays an important role in the management of these patients. This study assessed the accuracy of endoscopic ultrasound (EUS) staging in comparison with computerised tomography (CT) staging and the impact of EUS in management of patients with oesophageal carcinoma undergoing gastro-esophagectomy. METHODS: Ninety-six consecutive patients with oesophageal carcinoma underwent preoperative staging with multislice CT and EUS. Of these, 50 patients underwent gastro-esophagectomy, allowing preoperative staging data from these imaging modalities to be compared to postoperative histopathological staging, classified according to the TNM system. Management plans for these patients made without use of EUS were then compared to those following EUS staging. RESULTS: The overall accuracy rate of EUS for T staging was 64%, showing good agreement with postoperative histopathological staging of the resected specimen (weighted k=0.42, 95%CI= 0.32-0.52). In terms of clinical decision making, the T stage accuracy rose to 90% when differentiating T1 from T2/3 lesions. In terms of N staging, the overall accuracy was 72% (weighted k=0.44, 95% CI=0.34-0.54). In comparison, N staging by CT was significantly less accurate (62% vs 72%, P<0.01, chi squared) and showed poor agreement with postoperative histopathological nodal staging (weighted k=0.24, 95%CI =0.11-0.37). Importantly, in 56% of patients, staging information obtained from EUS instigated change in management compared to that configured without EUS. CONCLUSION: EUS enhances preoperative staging of oesophageal cancer and is important in preoperative clinical decision making process, especially with increasing use of neoadjuvant chemotherapy.

Anastomotic leakage post-esophagogastrectomy for esophageal carcinoma: retrospective analysis of predictive factors, management and influence on longterm survival in a high volume centre.

OBJECTIVE: Anastomotic leak post-gastro-esophagectomy for esophageal carcinoma remains an important issue in immediate as well as late morbidity and mortality. Several predictive factors such as patient and technical variables have been suggested with inconsistent findings. Our aim was to compare these factors and the results of treatment of anastomotic dehiscence on short and longterm survival in our center to published data. METHODS: A retrospective study of 276 consecutive patients post-Ivor-Lewis gastro-esophagogastrectomy for esophageal carcinoma between 1992 and 1999. Explanatory variables taken into account for predicting anastomotic leak included preoperative weight loss, neoadjuvant therapy, inkwelling of the anastomosis, gastric drainage procedure and involvement of longitudinal resection margins. Incidence variation over time was compared. 5-year survival was assessed using the Kaplan-Meier method. RESULTS: The anastomotic leak rate was 5.1% with only minor variation over time. The 30-day mortality with anastomotic leak was 35.7% compared to 4.2% for patients without leak (P<0.05). None of the suggested explanatory variables analyzed reached statistical significance at a 5% level. On multiple logistic regression there was a trend towards gastric outlet drainage procedure which might decrease the relative risk by 61% (P=0.099). After excluding the 30-day mortality the 5-year survival with anastomotic leak was not different to those without. CONCLUSIONS: None of the factors reported in the literature reached statistical significance in our series. High institutional and high surgeon volume seem to outweigh any other contributing factor. Aggressive management for substantial leaks is advocated by the authors as long term palliation does not seem to be affected once the leak has been successfully treated.

The effect of age on the outcome of surgical treatment for carcinoma of the oesophagus and gastric cardia.

OBJECTIVE: The aim of this study was to examine the effect of age on the outcome of surgical treatment for carcinoma of the oesophagus and gastric cardia. METHODS: From 1979 to 1999, 596 patients underwent gastro-oesophagectomy with two-field lymph node clearance for cancer under the care of a single surgeon. The clinicopathologic characteristics and survival of patients aged between 45 and 63 years (n=198, Group 1), 63 and 71 years (n=199, Group 2) and 71 and 89 years (n=199, Group 3) were compared. RESULTS: Thirty-day mortality for the first 300 patients (1979-1993) in this consecutive series was 5, 8 and 18% for Groups 1, 2 and 3, respectively, and 6, 6 and 6% for Groups 1, 2 and 3, respectively, in the second consecutive 296 patients (1993-1999, P=0.006, chi(2)). Tumours were poorly differentiated in 55.7, 59.1 and 53.4% of patients in Groups 1, 2 and 3, respectively, for 1979-1993 and 64.7, 53.2 and 40.2% of tumours in Groups 1, 2 and 3, respectively, for 1993-1999 (P=0.02, chi(2)). Adjuvant therapy was significantly more common in younger patients (P=0.006, chi(2)). Five-year survival in the first period was 22, 15 and 11% for Groups 1, 2 and 3, respectively, (P=0.02 log-rank) and 18, 16 and 14% for Groups 1, 2 and 3 in the second period (P=NS, log-rank). CONCLUSIONS: Elderly patients now have equivalent short and long-term outcomes compared to younger patients following gastro-oesophagectomy. Five-year survival, even in younger patients receiving adjuvant therapy remains poor, however, at approximately 20%. New therapeutic modalities are required to improve long-term survival following surgical treatment of gastro-oesophageal carcinoma.