Analysis Of Risk Factor And Establishment Of The Scoring System That Predicts Laparoscopic Colorectal Surgery Conversion To Open Surgery

Objective To analysis the risk factor of LCS conversion to open surgery,establish the scoring system that predicts LCS to open surgery。Methods Retrospective study was performed on 429 patients,who underwent LCS at our department。Result Conversion rate was 15.58%,the risk factor of LCS to open surgery included age≥65(CI=2.115 P＜0.05),BMI≥25(CI=2.907 P＜0.01), operation numbe≤25(CI=1.900 P＜0.05),abdominal operation history (CI=3.205 P＜0.05),invasion or metastasis(CI=30.115 P＜0.01) and size of tumor≥6cm(8.954 P＜0.05).calculate the function of probability that LCS converts to open surgery and establish the scoring system, age(≥65 7,＜65 0),(BMI≥25 11,BMI＜25 0),operation number≤25(yes 5,no 0),abdominal operation history(yes 12,no 0),size of tumor(≥6cm 22,＜6cm 0),invasion or metastasis(yes 34,no 0)。18.5 use to predict the conversion,sensitivity 0.765, specificity 0.806.conversion rate below 18.5 is 5.21%,above 18.5 is 42.62%(P＜0.01)。Conclusion The scoring system that predicts Laparoscopic colorectal surgery conversion to open surgery is simple, convenient and applicable。...