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Asymptomatic hepatic artery dissection early after living-donor liver transplantation with simultaneous splenectomy: two case reports.

Abstract：

BACKGROUND:Hepatic artery dissection after liver transplantation is an uncommon morbidity. The onset mechanism and management for this disorder remain unclear. The present report describes the cases of two patients with hepatic artery dissection after living-donor liver transplantation (LDLT) with simultaneous splenectomy and provides new insight into the onset mechanism of this disorder. CASE PRESENTATION:CASE 1: A 51-year-old man with liver cirrhosis caused by hepatitis B virus underwent LDLT with a right lobe graft and splenectomy simultaneously. The recipient's right hepatic artery had partial dissection at the anastomosis site; therefore, his left hepatic artery was anastomosed. Contrast-enhanced computed tomography (CT) on postoperative day (POD) 27 showed dissection from his celiac artery to his left hepatic artery with bleeding in the false lumen. There was a risk of rupture of the false lumen; therefore, emergency interventional radiology and coil embolization of the false lumen were performed. The patient was doing well at 6 months after LDLT. CASE 2: A 58-year-old woman with liver cirrhosis caused by primary biliary cholangitis underwent LDLT with a left lobe graft and splenectomy simultaneously. Her hepatic artery had a dissection that extended from her left hepatic artery to the proper hepatic artery. The gastroduodenal artery was anastomosed. Contrast-enhanced CT on POD 8 revealed dissection from the celiac artery to the common hepatic artery as well as a pseudoaneurysm at the celiac artery. We managed the patient with conservative treatment and performed daily follow-ups with Doppler ultrasonography examination and serial contrast-enhanced CT. At the time of writing this report, the patient was doing well at 34 months after LDLT. CONCLUSIONS:Patients who have an intimal dissection at the anastomosis site and/or simultaneous splenectomy are at a higher risk of hepatic artery dissection. Most patients with asymptomatic hepatic artery dissections can be treated conservatively. Blood flow in the intrahepatic artery should be checked frequently using Doppler ultrasonography or contrast-enhanced CT soon after diagnosis.

journal_name

BMC Gastroenterol

journal_title

BMC gastroenterology

authors

Shimata K,Sugawara Y,Irie T,Sambommatsu Y,Kadohisa M,Ibuki S,Kawabata S,Isono K,Honda M,Yamamoto H,Hibi T

doi

10.1186/s12876-020-01528-0

subject

Has Abstract

pub_date

2020-11-12 00:00:00

pages

378

issue

issn

1471-230X

pii

10.1186/s12876-020-01528-0

journal_volume

pub_type

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Asymptomatic hepatic artery dissection early after living-donor liver transplantation with simultaneous splenectomy: two case reports.