RESUMEN
BACKGROUND/AIMS: Endoscopic injection sclerotherapy is in widespread use for patients with esophageal varices. It is well known that pleural effusions are among complications following endoscopic sclerotherapy. However, there are few studies regarding the proportion of patients developing pleural effusions after sclerotherapy. METHODOLOGY: Between August 1991 and September 1998, 575 endoscopic injection sclerotherapies were carried out in 128 patients. Chest radiographs were obtained prior to and 24 hours after all procedures. We also obtained other clinical data from all patients. RESULTS: In total, 17.7% of post-sclerotherapy patients were diagnosed as having small amounts of pleural effusions. Logistic regression revealed pleural effusions after sclerotherapy to be associated with ascites, chest pain for 24 hours, total volume of sclerosant and submucosal injection of more than 4mL of sclerosant. In parallel with injection of an increasing amount of submucosal sclerosant, the proportion of patients with pleural effusion increased. CONCLUSIONS: Pleural effusions were related to ascites, chest pain for 24 hours, total sclerosant volume and submucosal injection of sclerosant.