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Adrenomedullin in liver transplantation and its relationship with vascular complications

✍ Scribed by Fábrega, Emilio ;Crespo, Javier ;Casafont, Fernando ;de la Peña, Joaquin ;García-Unzueta, Maria Teresa ;Amado, Jose Antonio ;Pons-Romero, Fernando

Book ID
102467218
Publisher
Wiley (John Wiley & Sons)
Year
1999
Tongue
English
Weight
72 KB
Volume
5
Category
Article
ISSN
1074-3022

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✦ Synopsis

Adrenomedullin (AM) is a potent vasodilating peptide that increases rat platelet cyclic adenosine monophosphate levels and acts on endothelial cells to stimulate nitric oxide release. Both mechanisms inhibit platelet function. Considering these effects, AM may have a role in cardiovascular regulation after orthotopic liver transplantation (OLT) and could have an antithrombotic effect. The aim of the present study is to investigate plasma AM levels in the early postoperative period after OLT and their relationship with vascular complications in OLT. We measured plasma AM levels in 35 patients with cirrhosis who underwent OLT at baseline and 1, 7, and 15 days postoperatively. We found that AM levels were significantly greater in patients with cirrhosis compared with healthy subjects. Of the 35 patients, 10 had vascular complications. In these 10 patients, AM concentrations were significantly greater than those observed in the nonthrombotic group in the early postoperative period. In addition, we also noticed in the nonthrombotic group a significant increase in AM levels from baseline to day 1, then a decrease to baseline levels in the early postoperative period. Our study shows that AM might act as a new humoral factor involved in the response to surgery in OLT and is significantly associated with vascular thrombosis in OLT.

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