https://admin1.seo.com.cn/CustomerAdmin/S_News/Create?ru=%2FCustomerAdmin%2FS_News%2F

Although the application of the Chiba needle in Percutaneous Transhepatic Cholangiography (PTC) has greatly reduced surgical risks, complications remain a subject of utmost concern for every interventional physician, given the liver's rich blood supply and the close proximity of the biliary system to major vessels. Establishing a robust complication prevention and management system based on the physical characteristics of the Chiba needle is key to ensuring patient safety. One of the most common complications is bleeding. Although the Chiba needle is extremely fine, if the puncture path happens to traverse an intrahepatic arterial or venous branch, hemobilia or intraperitoneal hemorrhage may still occur. To prevent this, physicians performing ultrasound-guided Chiba needle punctures must carefully differentiate bile ducts from surrounding vessels, utilizing color Doppler to avoid areas with abundant blood flow signals. In the event of bleeding, the procedure should be stopped immediately; in most cases, conservative management with hemostatic medications and close observation suffices.

Another major complication is biliary infection and sepsis. Patients with obstructive jaundice typically have stagnant bile that is highly susceptible to bacterial colonization. If excessive pressure is applied during contrast injection through the Chiba needle in PTC, bacteria-laden bile may be forced retrogradely into the bloodstream or lymphatic vessels, triggering severe bacteremia. Therefore, when injecting contrast with a Chiba needle, the principles of "low pressure, slow speed, and small volume" must be strictly followed, accompanied by routine perioperative prophylactic broad-spectrum antibiotics. Additionally, bile leakage requires vigilance. Although the Chiba needle creates a very fine tract, repeated punctures or patients with severe ascites still carry a risk of bile peritonitis. Post-procedure, patients are required to remain on strict bed rest for 12 hours with close monitoring of abdominal signs. Any worsening abdominal pain or muscle rigidity should prompt immediate imaging and appropriate drainage measures.

It is worth mentioning that the material and design of the Chiba needle also contribute to complication reduction. For instance, its smooth surface finish minimizes tissue drag injury and reduces inflammatory response. Standardized manufacturing ensures consistent tip sharpness across batches, avoiding the need for repeated punctures due to rolled or burred edges. In summary, through meticulous preoperative assessment, standardized ultrasound-guided technique, judicious contrast use, and rigorous postoperative monitoring-combined with the inherent minimally invasive advantages of the Chiba needle-the complication rate of PTC can be kept at an extremely low level, ensuring the safe clinical application of this technique and bringing tangible benefits to patients with biliary diseases.