Article Abstract

What happened in 133 consecutive hepatic artery reconstruction in liver transplantation in 1 year?

Authors: Tsan-Shiun Lin, Vishnu Prasad NR, Chao-Long Chen, Johnson Chia-Shen Yang, Yuan-Cheng Chiang, Pao-Jen Kuo, Chih-Chi Wang, Shih-Ho Wang, Yueh-Wei Liu, Chee-Chien Yong, Yu-Fan Cheng


Background: The immediate challenges during microvascular reconstruction of hepatic artery (HAR) during liver transplantation (LT) can be many. Hence, in-order to give a cross sectional view of these problems this study over a period of 1 year, showing our routine practice, was taken up.
Methods: From January 2015 to December 2015, a total of 133 LTs were performed in Kaohsiung Chang Gung Memorial Hospital, Taiwan. All hepatic artery (HA) reconstructions were performed by a microvascular surgeon under an operating microscope.
Results: In the 133 patients, one artery was anastomosed in 123 (92.5%) patients, two in 9 (6.8%) patients and three in 1 (0.7%) of the patient. Eleven (8.3%) arteries were less than 2 mm in size (1–1.9 mm). There were intimal dissections (IDs) involving either the donor or the recipient arteries of mild to severe nature in 9 (6.8%) patients. Immediately following graft arterial anastomosis, either there was no flow or an intraoperative hepatic artery thrombosis (HAT) was found in nine (7.1%-8 LDLT, 4.8%-1 DDLT) patients. Immediate re-do anastomosis was done in all of these patients who did well in the follow-up. The overall post-operative success rate was 99.2%. One patient (0.8%) developed postoperative HAT due to infection during follow up and died due to sepsis.
Conclusions: Small vessels or HA injury are the frequently encountered problems by a micro vascular surgeon. The other problems could be ID, need to do multiple reconstructions, immediate HAT and ability to re-do the HAR immediately.