Abstract: Objective The aim of this study was to observe the curative effect of CT-guided one-step percutaneous transhepatic cholangial drainage (PTCD) in the treatment of patients with malignant obstructive jaundice (MOJ). Methods 60 patients with MOJ were enrolled in our hospital between January 2017 and December 2019, and they were divided randomly into control (n=30) and observation group (n=30). The patients were given PTCD under the guidance of X-ray fluoroscopy in the control or CT-guided one-step puncture in the observation. Results During the operation, the one-time success rate of puncture in the observation group was significantly higher than that in the control group (96.7% vs. 43.3%, P<0.05), the fluoroscopy time was significantly shorter than that in the control group [(13.6±2.1) s vs. (32.6±4.1) s, P<0.05], the total puncture time was significantly shorter than that in the control group [(48.9±10.3) s vs. (92.3±13.6) s, P<0.05], and the radiation exposure dose was significantly less than that in the control group [(2.5±0.3) mGy vs. (5.8±1.1) mGy, P<0.05]; at the end of two weeks after the surgery, total serum bilirubin level in the observation group decreased from (241.8±83.6) μmol/L to (109.8±45.6) μmol/L, that in the control decreased from (242.4±91.2)μmol/L to (108.4±61.9)μmol/L, and there were no significant differences respect to other liver function tests between the two groups (P>0.05); at the end of three month, the post-operational complications such as biliary infection, bleeding, liver abscess and peritonitis in the observation was 3.3%, significantly lower than 26.6% in the control(P<0.05). Conclusion CT-guided one-step PTCD in dealing with patient with malignant obstructive jaundice could improve the puncture successfully, which might be applied in clinical practice overwhelmingly.

Key words: Obstructive jaundice, Percutaneous transhepatic cholangial drainage, CT-guidance