OBJECTIVEIn developing countries like India, where tertiary medical facility is not available to all people, treatment should be easily feasible. Small and cost effective procedures like Chemical Cauterization may be a good option for restoring the continuity of tympanic membrane in patients with non-healing perforation in the pars tensa. AIMTo study the effectiveness of chemical cauterisation using trichloroacetic acid in chronic non-healing small dry perforation. MATERIALS AND METHODS40 patients with non-healing dry tympanic membrane perforations were included in the study; 30 percentage TCA was used to cauterize the margins of the perforation. The study was conducted in ENT Department of Vinayaka Missions Medical College and Hospital for duration of 1 year from June 2014 to June 2015. RESULTSThe success rate of the procedure is 92.5%. CONCLUSIONIt is a promising office-based technique for closure of chronic small dry tympanic membrane perforations. It is a relatively easy, simple, safe and economical procedure. KEYWORDSChemical Cauterization, Hearing Results, Tympanic Membrane Perforations. HOW TO CITE THIS ARTICLE:Bala G, Kannappan AL, Nahas TK, et al. Chemical cauterization by using trichloroacetic acid in tympanic membrane perforations: our experience.

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RESULTS: No differences were found in overall mean operative time between Xi-Rob (243 minutes) and Si-Rob group (246.4 minutes) vs Trad-Lap group 277.5 minutes (p ¼ 0.052 and p ¼ 0.163). Overall costs associated with Trad-Lap procedures were significantly lower than with Xi-Rob and Si-Rob groups also when adjusting for covariates (p < 0.001); excluding fixed costs, the difference between Trad-Lap and robotic groups resulted no longer statistically significant (p ¼ 0.602 and p ¼ 0.169 for Si-Rob and Xi-Rob, respectively). CONCLUSIONS: Robotic distal pancreatectomy is more expensive than direct manual laparoscopy for distal pancreatectomy because of higher acquisition and maintenance costs. The flattening of these differences considering only the variable costs suggests a possible optimization of the cost-effectives of robotic distal pancreatectomy in this setting.

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