Can cerebral vasoreactivity predict cerebral tolerance to carotid clamping during carotid endarterectomy?

Cerebral vasoreactivity (CVR) was evaluated as a preoperative test in predicting cerebral tolerance to carotid clamping.A consecutive series of 115 carotid endarterectomy (CEA) cases were studied. Before surgical operation CVR was evaluated, by measuring the mean velocity of the middle cerebral artery (mv-MCA) using transcranial Doppler (TCD) at the basal condition and 20 min after intravenous administration of acetazolamide (1 g).

Predictive value of transcutaneous oximetry for selection of the amputation level.

Background: Transcutaneous oximetry was studied to select the correct amputation level for limb ischemic necrosis with possible identification of threshold value.

Methods: The method was evaluated in 30 cases (20 patients, 5 males and 15 females, of ages ranging from 61 to 93, average 73.1+/-8.

Purification and general properties of glutamate decarboxylase from Clostridium perfringens.

1. A seven-step procedure for preparing highly purified glutamate decarboxylase from Clostridium perfringens is described. 2.