Venous modulation of collateral perfusion for cerebral ischemia

A - Human Necessities – 61 – M

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A61M 1/10 (2006.01) A61M 29/00 (2006.01)

Patent

CA 2703845

A patient in whom blood diversion due to cerebral venous steal is present, and abolishment of the cerebral venous steal is indicated, is treated by increasing the cerebral venous pressure in the patient. This increase in cerebral venous pressure restores the collapsed cerebral vasculature, thereby increasing cerebral blood flow. The increase in cerebral venous pressure may be achieved using an occluding catheter in the superior vena cava or the internal jugular veins, using external compression of the cervical veins, or any other suitable mechanism. The occlusion may be controlled precisely during treatment, possibly as a function of cerebral blood flow, and after treatment the patient may experience a persistent effect because the cerebral vasculature is no longer collapsed.

Un patient chez qui une diversion sanguine due à un détournement veineux cérébral est présente, et chez qui l'abolition du détournement veineux cérébral est indiquée, est traité par augmentation de sa pression veineuse cérébrale. Cette augmentation de la pression veineuse cérébrale restaure le système vasculaire cérébral effondré, de ce fait augmentant le débit sanguin cérébral. L'augmentation de la pression sanguine cérébrale peut être obtenue à l'aide d'un cathéter d'occlusion dans la veine cave supérieure ou dans les veines jugulaires internes, à l'aide d'une compression externe des veines cervicales, ou de tout autre mécanisme approprié. L'occlusion peut être contrôlée de façon précise pendant le traitement, éventuellement en fonction du débit sanguin cérébral, et après traitement, le patient peut ressentir un effet persistant car le système vasculaire cérébral n'est plus effondré.

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