@article{oai:niigata-u.repo.nii.ac.jp:00006709, author = {Naito, Emiko and Noguchi, Ryoko and Endoh, Hiroshi and Sato, Kazunori and Hashiba, Masao and Shimoji, Koki}, issue = {1}, journal = {Acta medica et biologica, Acta medica et biologica}, month = {Jun}, note = {Plasma levels of epinephrine (E) and norepinephrine (NE) were measured by sensitive high-speed ion-exchange chromatography in patients undergoing major operations under neuroleptanesthesia (NLA) or N_2O-halothane anesthesia (GOH). Intravenous thiamylal decreased E and increased NE in most patients. NLA decreased both E and NE, while GOH decreased E and tended to increase NE. E and NE were inclined to increase during surgery compared with their preoperative values (under anesthesia); an exception was the value of NE under GOH. The most prominent increases in E and NE were frequently observed during the recovery period. E decreased but NE still maintained its high value on the day following the operation. There were no significant correlations between catecholamine levels and mean arterial pressure or heart rate. Compared to the values found in healthy subjects, preanesthetic E levels in our patients were quite high, probably due to psychological stress.}, pages = {1--10}, title = {Plasma catecholamines before during and after neuroleptanesthesia or nitrous oxide-halothane anesthesia}, volume = {33}, year = {1985} }