ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

摘要:

Four volunteers judged eight levels of thermal stimuli induced by a Hardy dolorimeter, varying in intensity from extremely painful to a low level seldom even perceived. Half of the 406 stimuli were applied during acupuncture and half either before insertion or after removal of the needles. The experimental design minimized or eliminated factors other than the needles themselves,i. e., no medication was given, the subjects were scientists accustomed to objectivity and, on a preceding day or days, all had become experienced in assigning numbers (individually chosen) to the sensations produced by the different stimuli. Galvanic skin resistance was also tested. The results did not show any influence of acupuncture on perception of pain or on galvanic skin resistance.

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

摘要:

Because d'pamine-beta-hydroxylase (DBH) is released from storage vesicles in adrenergic nerves and the adrenal medulla along with catecholamines, determination of circulating levels of this enzyme might serve as an index of sympathoadrenal activity. This hypothesis has been studied in dogs anesthetized with cyclopropane, isoflurane, and thiopental that were subjected to a single acute hemorrhage and followed for 5 hours. Plasma DBH activity and catecholamine levels were determined before and every 30 minutes after the hemorrhage. Charges in DBH activity did not correlate well with changes in levels of circulating catecholamines in the dog in response to this form of stress.

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

摘要:

Five healthy rhesus monkeys were ventilated with intermittent mandatory ventilation and 20 torr positive end-expiratory pressure (PEEP) for 8 hours. PEEP was increased to 25 torr and the monkeys were ventilated for 4 more hours. Lactated Ringer's solution and human salt-poor albumin were used to expand plasma and extracellular fluid volume throughout the entire period of study. Homologous blood was administered to maintain hematocrit at control levels and maintenance fluids were infused to maintain transmural pulmonary capillary wedge pressure at 5 to 15 torr. Although cardiac output, mean aortic blood pressure, oxygen consumption, venous admixture, transmural pulmonary capillary wedge pressure, HCO,-and in-cico base excess were not changed when intermittent mandatory ventilation was employed, cardiac output and blood pressure were significantly depressed by brief periods of controlled mechanical ventilation when alternated with intermittent mandatory ventilation. Sporadic increases in arterial-venous oxygen content difference occurred. Arterial carbon dioxide tension was elevated moderately, with a concomtant depression of arterial pH. No pneumothorax occuned. High PEEP was well tolerated with intermittent manditory ventilation, intravascular volume expansion, and careful cardiovascular monitoring.

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID

ISSN:0003-3022    

出版商:OVID    

年代:1975

数据来源: OVID