Resumen

RAMOS SOCARRAS, Aníval Ernesto et al. Determining Factors in Conversions in Laparoscopic Cholecystectomy. CCM [online]. 2014, vol.18, n.4, pp.611-622. ISSN 1560-4381.

Introduction: sometimes it is necessary to complete a laparoscopic cholecystectomy by the conventional way, this approach is known as conversion. Objective: to identify and quantify the influence of different factors affecting the conversion during laparoscopic cholecystectomy. Methods: a cross-sectional study was carried out during 2000-2010 in a population of 22 patients that underwent cholecystectomy in which the intervention was necessary to modify to open surgery. The influence of different variables in the conversion was determined and quantified; based on the estimated odds ratio (OR) point estimations and confidence intervals (95%) of the OR were obtained. Results: five conversions were done in the urgent interventions (6.02 %), this percentage is lower in elective ones (0.42 %), the overall value for the whole study population was 0.53 %. Injuries of the main biliary tract in eight cases as well as acute cholecystitis were the main causes of conversion. There were nine patients (1.8 %) that underwent conversions with less than 200 interventions. Patients converted by surgeons with less than 200 interventions were 9. Of the patients operated on with more than 200 interventions 13 (1.6 %) of then underwent conversion. Conclusions: conversion rate showed a significant decrease over the years, unfavorable local conditions increased the risk of conversions. The surgeon's experience in over 200 interventions significantly reduced the conversion possibilities as well as the rates of lesions.

Palabras clave : conversions; laparoscopic cholecystectomy; main biliary tract injury.

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