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Porcine model characterizing various parameters assessing the outcome after acetaminophen intoxication induced acute liver failure 被引量:1
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作者 Karolin Thiel Wilfried Klingert +11 位作者 Kathrin Klingert Matthias H Morgalla Martin U Schuhmann Pamela Leckie Yalda Sharifi Nathan A Davies Rajiv Jalan Andreas Peter christian grasshoff Alfred Konigsrainer Martin Schenk christian Thiel 《World Journal of Gastroenterology》 SCIE CAS 2017年第9期1576-1585,共10页
To investigate the changes of hemodynamic and laboratory parameters during the course of acute liver failure following acetaminophen overdose.METHODSEight pigs underwent a midline laparotomy following jejunal catheter... To investigate the changes of hemodynamic and laboratory parameters during the course of acute liver failure following acetaminophen overdose.METHODSEight pigs underwent a midline laparotomy following jejunal catheter placement for further acetaminophen intoxication and positioning of a portal vein Doppler flow-probe. Acute liver failure was realized by intrajejunal acetaminophen administration in six animals, two animals were sham operated. All animals were invasively monitored and received standardized intensive care support throughout the study. Portal blood flow, hemodynamic and ventilation parameters were continuously recorded. Laboratory parameters were analysed every eight hours. Liver biopsies were sampled every 24 h following intoxication and upon autopsy.RESULTSAcute liver failure (ALF) occurred after 28 ± 5 h resulted in multiple organ failure and death despite maximal support after further 21 ± 1 h (study end). Portal blood flow (baseline 1100 ± 156 mL/min) increased to a maximum flow of 1873 ± 175 mL/min at manifestation of ALF, which was significantly elevated (P < 0.01). Immediately after peaking, portal flow declined rapidly to 283 ± 135 mL/min at study end. Thrombocyte values (baseline 307 × 10<sup>3</sup>/µL ± 34 × 10<sup>3</sup>/µL) of intoxicated animals declined slowly to values of 145 × 10<sup>3</sup>/µL ± 46 × 10<sup>3</sup>/µL when liver failure occurred. Subsequent appearance of severe thrombocytopenia in liver failure resulted in values of 11 × 10<sup>3</sup>/µL ± 3 × 10<sup>3</sup>/µL preceding fatality within few hours which was significant (P > 0.01).CONCLUSIONDeclining portal blood flow and subsequent severe thrombocytopenia after acetaminophen intoxication precede fatality in a porcine acute liver failure model. 展开更多
关键词 Acetaminophen intoxication Acute liver failure Portal blood flow THROMBOCYTOPENIA Animal model Porcine model
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