Japanese
English
- 有料閲覧
- Abstract 文献概要
- 1ページ目 Look Inside
Ⅰ.はじめに
脳動脈瘤破裂後の脳血管撮影でしばしば脳動脈攣縮が見られる.この脳動脈攣縮は脳動脈瘤破裂後数日から数週間にわたって認められ,患者の病状,予後に重要な影響を及ぼす.この様な脳動脈攣縮の病態を解明する為に多くの研究かなされたが,最近脳動脈瘤破裂後の血管攣縮は二相性に変動することがBrawley2),杉浦31),鈴木32),Echlin4)等により実験的に証明された.
即ちBrawley2)は犬を用い前大脳動脈破裂後の内径動脈径の変動をstrain gaugeにより追究し,脳動脈攣縮を血管破裂後数分で出現し60分間続く急性期と3-4時間後に始まり数日間続く慢性期に分類した.
Adult mongrel dogs were used. The posterior communicating artery was punctured with a fine needle and subarachnoid hemorrhage was produced, which simulated aneurysmal rupture in human. The cerebral basal arteries were constricted remarkably after the puncture. However this vasospasm disappeared in about 60-120 minutes. After this restoration, the vessels began to be constricted again and reduced their diameter in greater degree with lapse of time.
Copyright © 1975, Igaku-Shoin Ltd. All rights reserved.