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  • Title: Microwave coagulation versus sclerotherapy after band ligation to prevent recurrence of high risk of bleeding esophageal varices in Child-Pugh's A and B patients.
    Author: Monici LT, Meirelles-Santos JO, Soares EC, Mesquita MA, Zeitune JM, Montes CG, Almeida JR, Yamanaka A, Magna LA.
    Journal: J Gastroenterol; 2010 Feb; 45(2):204-10. PubMed ID: 19802519.
    Abstract:
    BACKGROUND: The combination of endoscopic band ligation (EBL) with either endoscopic injection sclerotherapy (EIS) or thermal therapy has been shown to reduce recurrence of esophageal varices compared to EBL alone. The aim of this prospective trial was twofold: 1) to evaluate the safety and efficacy of EBL used in association with microwave coagulation (MC), a thermal endoscopic therapy method, for treating esophageal varices and preventing recurrence; and 2) to compare these results to the joint application of EBL and EIS. METHODS: Seventy cirrhotic patients with bleeding esophageal varices were treated with EBL until only thin vessels remained. Thirty-six randomly selected patients received EIS (group A) and 34 received MC (group B) until complete eradication had been achieved. Endoscopic follow-up was performed to detect recurrence. The effectiveness of the treatment was measured using variceal recurrence, rebleeding, intervention complications, and recurrence factors. RESULTS: During follow-up evaluations averaging 34.9 +/- 11.4 months, no significant differences were found between groups A and B in variceal recurrence (27.7 vs. 17.6%, P = 0.31) or rebleeding (8.3 vs. 0%, P = 0.23). Complications were rare, with no difference detected between groups. The presence of gastric varices influenced recurrence with an odds ratio of 3.9 (95% CI 1.14-13.1, P = 0.029). CONCLUSIONS: Application of MC to esophageal varices after band ligation is safe. The post-MC recurrence rate may be comparable to that observed following the combined treatment of EBL and EIS. The presence of gastric varices increases the risk of esophageal variceal recurrence.
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