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Experimental Studies on Pathogenesis of Pulmonary Edema during Acute Stage of Hypertensive Intracerebral Hemorrhage Setsuo Ono 1 1Dept. of 2nd Surgery, School of Med., Iwate Medical Univ. pp.1017-1028
Published Date 1968/12/25
DOI https://doi.org/10.11477/mf.1431904569
  • Abstract
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Pulmonary pathogenesis was investigated on the dog with intracerebral hemorrhage produced with a certain method in order to clarify a relationshipbetween pulmonary edema frequently occurs at the acute stage of hypertensive intracerebral hemorrhage and the hematoma site which is possibly confined to or about the internal capsule. The following are the conclusions obtained.

1) When a hematoma clot was inserted into the region of the internal capsule of the dog, cardiopulmonary dysfunction was observed as far as cardiopulmonary hemodynamics was concerned and a blood gas analysis and O2 removal rate revealed presence of ventilation disturbance. Histo-logical findings were also demonstrated of pul-monary edema or its preparatory stage.

2) Pulmonary edema was not observed in thecontrol dog with the cerebrospinal fluid pressure of which was raised to a degree of that of the diseased dog. Therefore pulmonary edema was due to the hematoma extending exclusively to the internal capsule, and a rise of CSF pressure played only supplimentary role.

3) When anoxia or hypercapnia was loaded the dog with intracerebral hemorrhage, 02 removal rate became higher as compared with that of the control dog.

4) As for the treatment of pulmonary edema of the diseased dog, hematoma evacuation was more remarkably effective than any other methods.


Copyright © 1968, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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