A poor CFI can alert surgeons to potential difficulties with the donor vessel, anastomosis, or recipient vessel during surgery. Furthermore, a CFI closely approximating 1.0 provides physiological confirmation of impaired cerebrovascular reserve in the recipient bed.
Use of the ultrasonic flow probe provides real-time immediate feedback concerning vessel patency. Vessel compromise is easier to interpret than with Doppler, and faster/less invasive than intraoperative angiography. Intraoperative flow measurement is a valuable adjunct for enhancing the safety of aneurysm surgery.
The superficial temporal artery-to-middle cerebral artery bypass represents the mainstay of bypass operations for cerebral revascularization. The role of this operation in the setting of cerebrovascular occlusive disease, with compromised cerebral hemodynamic reserve, is a topic of current investigation. In this report, we describe technical nuances to avert potential pitfalls in the performance of this procedure. The use of intraoperative quantitative blood flow measurements as a reliable method of assessing the success of the bypass is also described.
Use of the ultrasonic flow probe provides real-time immediate feedback concerning vessel patency. Vessel compromise is easier to interpret than with Doppler, and faster/less invasive than intraoperative angiography. Intraoperative flow measurement is a valuable adjunct for enhancing the safety of aneurysm surgery.
The Authors report their experience of post-voiding contraction (PVC) in 173 consecutive functional studies of the female lower urinary tract. A lack of significant correlations between the various urodynamic pictures was noted on the one hand and between the PVC and their extent on the other. It is suggested that there may be a connection between the presence of PVC and that of two clinical symptoms i.e. enuresis and mixed urinary incontinence; this was observed in 75% and 63.2% of the cases respectively. Considering PVC as not being a true form of detrusorial instability, in the genesis of which a possible reduction in pelvic muscle tone cannot be excluded, the utility of a vesico-sphincteric fuctional study is highlighted. This study aims at defining not only urethral activity, but also that of the pelvic plane musculature, due to the well-known interdependence between perineal and detrusorial activity.
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