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  • Title: The influence of the intraventricular hemorrhage on the intracranial pressure and hemodynamic changes in the experimental intracerebral hemorrhage in the rabbits.
    Author: Karwacki Z, Kowiański P, Moryś J, Dziewiatkowski J, Suchorzewska J.
    Journal: Folia Neuropathol; 2000; 38(2):55-9. PubMed ID: 11057036.
    Abstract:
    The experimental model of the intracerebral hematoma in the rabbit was used for the investigation of the changes of the intracranial pressure and selected hemodynamic parameters. The study was performed on 13 adult rabbits, divided into two groups receiving 1 ml (group I--6 animals) and 2 ml (group II--7 animals) of fresh arterial blood, respectively. The monitoring of the intracranial pressure (ICP), the mean arterial blood pressure (MABP), the heart rate (HR), the end-tidal CO2 concentration (ETCO2) and the body temperature was measured every minute in the hematoma production phase and every 5 minutes for the consecutive three hours. The volume of the hematoma was calculated according to Cavalieri formula, with the use of the system for the automatic picture analysis. The mean volume of the intraparenchymal part of the hematoma in group I was higher than in the group II. However, in all the representatives of the second group the evidence of the intraventricular hemorrhage was present. The dynamics of the ICP, MABP and HR changes differed significantly in both groups during the period of the observation. On the basis of the physiological and morphological observations we conclude that the changes of ICP remain the most sensitive and valuable parameter during the early course of the intracerebral hemorrhage. Coexistence of the rapid ICP, MABP and HR changes must be always regarded as the possible sign of the intraventricular hemorrhage.
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