[Pretreatment with heparin in experimental trauma and haemorrhagic shock].

Le résumé fourni par la source

A severe shock is produced in 18 mongrel dogs by standardized bone trauma and haemorrhagic shock. Impairment of microcirculation is demonstrated by acidosis, reduced oxygen uptake and disseminated intravascular coagulation (DIC). Further, a specific increase in pulmonary vascular resistance--independent of the reduction in blood flow--is evoked, concomitantly with the occurrence of microthrombi, oedema and haemorrhage in lung tissue. Pretreatment with heparin inhibits disseminated intravascular coagulation and reduces impairment of microcirculation and the consecutive damage of intestinal organs. However increase of pulmonary vascular resistance is unchanged and pulmonary haemorrhage is pronounced. Therefore heparin pretreatment enhances pulmonary histologic impairment after trauma and haemorrhagic shock.

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