Liver transplantation in a case of fulminant liver failure after exertion
Liver transplantation in a case of fulminant liver failure after exertion
复制标题
劳累后暴发性肝功能衰竭的肝移植一例
作者:
J. Saissy
Sir: Exertional heat stroke (EHS) is defined as a cellular aggression due to an extreme and prolonged increase in the central temperature that occurs during the course of severe and prolonged muscular effort. Liver damage is almost always observed in cases of EHS, but fulminant liver failure (FLF) is an exceptional occurrence. Hassanein et al. [1] were the first to relate the case of a patient requiring orthotoptic liver transplantation (OLT) after EHS. We describe a second case. During a commando march in Gabon a 30-year-old soldier, athletic and well acclimated to the tropical climate, collapsed and became comatose (Glasgow Coma Scale = 9) with convulsions, hyperthermia (rectal temperature = 40 ~ mild rhabdomyolysis (serum creatine phosphokinase = 557 IU/1), arterial hypotension (blood pressure = 60/40 mmHg), and profuse diarrhea. He was intubated and artificially ventilated and then flown to France. Twenty hours later his rectal temperature was normal, and there was no 9 icterus or hemorrhage, but the patient was always comatose, with Glasgow Coma Scale Score at 4. Biological examination revealed FLF with alanine aminotransferase at 5200 IU/1, prothrombin level below 5%, factor V below 5%, and moderate rhabdomyolysis, with serum creatine phosphokinase at 5900 IU/1. OLT was performed 36 h after admission. Macroscopically the liver was small, pale, and exsanguinate, weighing 1400 g. The histological findings revealed central lobular necrosis with disorganization of the conjunctive tissue. On the 2th day after surgery the patient was completely conscious; and the prothrombin level was at 68%, factor V at 102%, and alanine aminotransferase at 625 IU/1. However, severe rhabdomyolysis with serum creatine phosphokinase at 34000 IU/1 and acute renal failure with serum creatinine at 788 gmol/1 developed on the 4th day after surgery while the patient was perfectly alert. Therefore the patient needed hemodialysis, and the renal failure was completely overcome in 3 weeks. His condition thereafter deteriorated, with biliary peritonitis which required two other operations, and he died 11 months after OLT in a context of chronic rejection. In its most serious forms EHS is a multiple organ dysfunction syndrome whose pathogeny is still poorly known [1]. With its high plasma tumor necrosis factor and interleukin l a levels [2] it could be associated With the systemic inflammatory response syndrome [3]. The chain inflammatory process which characterizes this syndrome may be due in EHS to the translocation of bacteria by splanchnic ischemia secondary to the redistribution which occurs during physical exertion in hot environments [4, 5]. The reported case, in which no toxic, infectious, or vascular etiology was observed, suggests that heat stroke occurring during physical exertion can cause FLF, resulting either from the direct effect of heat on the hepatic parenchyma or from acute hepatic ischemia due to the phenomenon of redistribution made worse by the hypersecretion of antidiuretie hormone, a potent portal vasoconstrictor, which occurs in the heat-acclimated subject [4]. In conclusion, EHS may be complicated by FLF, and the low hepatic tolerance to ischemia in the subject acclimated to the tropical climate could be a promoting factor.
影响因子:
29.4
作者:
Hassanein,T;Perper,JA;Tepperman,L;Starzl,TE;VanThiel,DH
通讯作者:
VanThiel,DH