Microsurgical reconstruction of hepatic artery in A-A LDLT: 124 consecutive cases without HAT.
OBJECTIVE
To retrospectively investigate microsurgical hepatic artery (HA) reconstruction and management of hepatic thrombosis in adult-to-adult living donor liver transplantation (A-A LDLT).


METHODS
From January 2001 to September 2009, 182 recipients with end-stage liver disease underwent A-A LDLT. Ten of these patients received dual grafts. The 157 men and 25 women had an age range of 18 to 68 years (mean age, 42 years). Microsurgical techniques and running sutures with back-wall first techniques were performed in all arterial reconstructions under surgical loupes (3.5 x) by a group of vascular surgeons. Intimal dissections were resolved by interposition of the great saphenous vein (GSV) between the donor right hepatic artery (RHA) and recipient common HA (3 cases) or abdominal aorta (AA) (2 cases), by interposition of cryopreserved iliac vessels between the donor RHA and recipient AA (2 cases).


RESULTS
In the 58 incipient patients in this series, hepatic arterial thrombosis (HAT) was encountered in 4 patients, and was not observed in 124 consecutive cases (total 192 grafts, major incidence, 2.08%). All cases of HAT were suspected by routine color Doppler ultrasonographic examination and confirmed by contrast-enhanced ultrasound and hepatic angiography. Of these cases of HAT, two occurred on the 1st and 7th d, respectively, following A-A LDLT, and were immediately revascularized with GSV between the graft and recipient AA. HAT in one patient occurred on the 46th postoperative day with no symptoms, and the remaining case of HAT occurred on the 3rd d following A-A LDLT, and was cured by thrombolytic therapy combined with an anticoagulant but died of multiorgan failure on the 36th d after A-A LDLT. No deaths were related to HAT.


CONCLUSIONS
Applying microsurgical techniques and selecting an appropriate anastomotic artery for HA reconstruction are crucial in reducing the high risk of HAT during A-A LDLT.
Yang
Yi
Y
Department of Liver and Vascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.
Yan
Lu-Nan
LN
Zhao
Ji-Chun
JC
Ma
Yu-Kui
YK
Huang
Bin
B
Li
Bo
B
Wen
Tian-Fu
TF
Wang
Wen-Tao
WT
Xu
Ming-Qing
MQ
Yang
Jia-Yin
JY
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006499:Hepatic Artery / Q000473:pathology / Q000601:surgery; D006801:Humans; D016031:Liver Transplantation / Q000009:adverse effects / Q000379:methods*; D019520:Living Donors; D008297:Male; D008866:Microsurgery / Q000379:methods*; D008875:Middle Aged; D019651:Plastic Surgery Procedures; D012189:Retrospective Studies; D013927:Thrombosis / Q000209:etiology / Q000517:prevention & control*; D016896:Treatment Outcome; D055815:Young Adult