Radiologia · 2017
Preoperative factors associated with technical difficulties of laparoscopic cholecystectomy in acute cholecystitis.
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Izquierdo Y E, Díaz Díaz N E, Muñoz N, Guzmán O E, Contreras Bustos I, Gutiérrez J S
Аннотация
OBJECTIVE: To identify preoperative factors associated with surgical time and conversion of the laparoscopic cholecystectomy (LC) to open surgery in subjects with acute cholecystitis (AC).
METHOD: We developed a cross-sectional study that included 99 subjects older than 17 years with definitive diagnosis of AC who had undergone to LC. Preoperative variables such as clinical data, laboratory markers and ultrasound findings as wall thickness, the size of the major calculus and the presence of: perivesicular fluid, multiple cholelithiasis, biliary mud or microlithiasis were registered. We consider indirect measures of technical difficulties of LC the total surgical time and the need for conversion to open surgery. We used the square chi and Mann-Whitney U test to stablish the correlation between preoperative variables and the technical difficulties of LC. We build ROC curves of the variables with significant statistical association (p ≤0.05 and 95% confidence interval [95%CI]) to determine the cut-off points of better sensitivity and specificity to predict conversion of LC to open surgery.
RESULTS: A gallbladder wall thickness ≥6mm detected by ultrasound has a sensitivity of 87.5% and a specificity of 62.6% with OR 11.71 (95%CI: 1.38-99; p = 0.008) for predict conversion to open surgery. There was no relationship between surgical time and the preoperative evaluated variables.
CONCLUSION: The gallbladder wall thickness detected by the ultrasound is associated with the need of conversion of LC to open surgery in subjects with AC, furthermore this finding could warn the surgeon on the complexity with a particular patient.
METHOD: We developed a cross-sectional study that included 99 subjects older than 17 years with definitive diagnosis of AC who had undergone to LC. Preoperative variables such as clinical data, laboratory markers and ultrasound findings as wall thickness, the size of the major calculus and the presence of: perivesicular fluid, multiple cholelithiasis, biliary mud or microlithiasis were registered. We consider indirect measures of technical difficulties of LC the total surgical time and the need for conversion to open surgery. We used the square chi and Mann-Whitney U test to stablish the correlation between preoperative variables and the technical difficulties of LC. We build ROC curves of the variables with significant statistical association (p ≤0.05 and 95% confidence interval [95%CI]) to determine the cut-off points of better sensitivity and specificity to predict conversion of LC to open surgery.
RESULTS: A gallbladder wall thickness ≥6mm detected by ultrasound has a sensitivity of 87.5% and a specificity of 62.6% with OR 11.71 (95%CI: 1.38-99; p = 0.008) for predict conversion to open surgery. There was no relationship between surgical time and the preoperative evaluated variables.
CONCLUSION: The gallbladder wall thickness detected by the ultrasound is associated with the need of conversion of LC to open surgery in subjects with AC, furthermore this finding could warn the surgeon on the complexity with a particular patient.