The clinical experience of mitomycin C balloon dilatation in intractable esophageal stricture EUN YOUNG CHANG, YOUNG JU HONG, JUNG-TAK OH, SEOK JOO HAN Department of Pediatric Surgery, Severance Children’s Hospital, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
Purpose Esophageal strictures refractory to conservative treatment represent a major problem in children. Recently, the application of mitomycin C to the lesion of strictures has been introduced. We investigated our clinical experience with this procedure in refractory esophageal stricture.
Methods From September 2011 to September 2013 16 patients: 15 esophageal stricture after the surgery of esophageal atresia 1 corrosive esophageal injury due to lithium battery ingestion after esophagectomy Mitomycin C balloon dilatation Drug eluting microporous PTFE balloon catheter after pre-balloon dilatation under the general anesthesia by intervention radiologist
Methods Pre-Pre-balloon Mitomycin C After-
Results CharacteristicsN=16 Sex (M/F)7/9 Age at Mitomycin C dilatation9.3 months ( ) Body weight at Mitomycin C dilatation6.1 kg ( ) Diameter of stricture3.0 mm ( ) Length of stricture5.3 mm ( ) Numbers of esophageal dilatation before procedure 2 (0-8) Numbers of esophageal dilatation after procedure 0 (0-4) * All variables are expressed by median values with range.
Results Numbers of esophageal dilatation pre-/post- mitomycin
Results After Mitomycin C esophageal dilatation, 5 patients were needed further dilatation. 1 : severe small diameter of stricture (1.55mm) (n: 4 4) 1: lithium battery ingestion, (n:1 4) 1: clinically severe stenosis: 0 1 1: decreased, (n:8 1) 1: decreased, (n:7 2) 11 patients: never needed further dilatation
Results Complications one patient a partial tearing of esophagus during the procedure followed pancytopenia, thrombocytopenia recovered through conservative treatment Follow-up duration: 8.3 months(r: ) All patients were not complain dysphagia
Conclusion Although this study is retrospective, small sample sized, not randomized, and limited follow-up, Mitomycin C balloon dilatation in refractory esophageal stricture is safe and feasible. For further indication, prospective, long-term assessment of outcome is needed.