Failure of phenylephrine to prolong isobaric bupivacaine spinal anesthesia in elderly patients.

Background And Objectives: The effects of phenylephrine on the duration of spinal anesthesia produced by plain bupivacaine were investigated in a double-blind study of 100 elderly patients.

Methods: Each patient received a basic solution of 3 ml 0.5% plain bupivacaine to which was added either 1 ml physiologic saline, 0.

[Metaraminol does not prolong the duration of spinal anesthesia using glucose-free bupivacaine in the upper dermatomes].

The effects of metaraminol on the duration of plain bupivacaine spinal anaesthesia were investigated in a double-blind study of 80 elderly patients. Each patient received a basic solution of 0.5% plain bupivacaine to which was added either physiological saline, or 1 mg, 2 mg or 3 mg metaraminol.

[Sedation with flunitrazepam during spinal anesthesia].

The clinical effects of flunitrazepam (FNZ) as IV sedative agent for spinal anaesthesia was studied. Of 112 elderly patients undergoing hip surgery, 40.2% have required a total dose of 26.