Related Experiment Video

Updated: Jul 25, 2026

Reduced Complications after Arterial Reconnection in a Rat Model of Orthotopic Liver Transplantation
08:39

Reduced Complications after Arterial Reconnection in a Rat Model of Orthotopic Liver Transplantation

Published on: November 7, 2020

8.5K

A Case Report of Severe Hepatic Artery Vasospasm Induced by Hepatic Arterial Buffer Response After Liver

Y Hiraki1, K Uchida2, S Nishida3

  • 1Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan.

Transplantation Proceedings
|December 10, 2016
PubMed

The management of severe hepatic artery vasospasm soon after liver transplantation (LT) is challenging because it can lead to hepatic artery thrombosis and subsequent graft failure. A 61-year-old man with hepatitis C cirrhosis and portal vein thrombosis received a deceased donor LT. On postoperative day 1, Doppler ultrasonography revealed a high-resistance waveform in the hepatic artery. Angiography showed severe vasospasm of the donor hepatic artery on postoperative day 3. Strong hepatic arterial buffer response (HABR) was considered for this etiology due to high portal vein velocity. Therefore, vasodilators, including nitroglycerin and prostaglandin E1, were initiated. The waveform of the hepatic artery vasospasm gradually improved as portal vein velocity decreased by Doppler ultrasonography within 7 days after LT. In conclusion, hepatic arterial buffer response can induce hepatic artery vasospasm immediately after LT. This vasospasm type may be managed conservatively with a positive outcome.

More Related Videos

Organ Ischemia-Reperfusion Injury by Simulating Hemodynamic Changes in Rat Liver Transplant Model10:07

Organ Ischemia-Reperfusion Injury by Simulating Hemodynamic Changes in Rat Liver Transplant Model

Published on: March 6, 2021

5.7K
Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model12:49

Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model

Published on: August 17, 2022

3.2K

Related Concept Videos

Vascular Spasm01:16

Vascular Spasm

The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...