Peripheral portal vein-oriented non-dilated bile duct puncture for percutaneous transhepatic biliary drainage

摘要

AIM: To evaluate the efficacy of peripheral portal vein (PV)-oriented non-dilated bile duct (BD) puncture for percutaneous transhepatic biliary drainage (PTBD).METHODS: Thirty-five patients with non-dilated BDs underwent PTBD for the management of various biliary disorders, including benign bilioenteric anastomotic stricture (n = 24), BD stricture (n = 5) associated with iatrogenic BD injury, and postoperative biliary leakage (n = 6). Under ultrasonographic guidance, percutaneous transhepatic puncture using a 21-G needle was performed along the running course of the peripheral targeted non-dilated BD (preferably B6 for right-sided approach, and B3 for left-sided approach) or along the accompanying PV when the BD was not well visualized. This technique could provide an appropriate insertion angle of less than 30° between the puncture needle and BD running course. The puncture needle was then advanced slightly beyond the accompanying PV. The needle tip was moved slightly backward while injecting a small amount of contrast agent to obtain the BD image, followed by insertion of a 0.018-inch guide wire (GW). A drainage catheter was then placed using a two-step GW method.RESULTS: PTBD was successful in 33 (94.3%) of the 35 patients with non-dilated intrahepatic BDs. A right-sided approach was performed in 25 cases, while a left-sided approach was performed in 10 cases. In 31 patients, the first PTBD attempt proved successful. Four cases required a second attempt a few days later to place a drainage catheter. PTBD was successful in two cases, but the second attempt also failed in the other two cases, probably due to poor breath-holding ability. Although most patients (n = 26) had been experiencing cholangitis with fever (including septic condition in 8 cases) before PTBD, only 5 (14.3%) patients encountered PTBD procedure-related complications, such as transient hemobilia and cholangitis. No major complications such as bilioarterial fistula or portal thrombosis were observed. There was no mortality in our series.CONCLUSION: Peripheral PV-oriented BD puncture for PTBD in patients with non-dilated BDs is a safe and effective procedure for BD stricture and postoperative bile leakage.