Article: Posture with elevated and extended thorax. The influence of the position on some haemodynamic and ventilatory parameters under general anaesthesia.
Acta anaesthesiologica Scandinavica
1980 Volume 24, Issue 6, Page(s) 458–461
Abstract: The effects of a change in posture from flat supine to supine with elevated and extended thorax have been investigated in 12 healthy patients under general anaesthesia prior to elective surgery on the stomach. The following parameters were measured: ... ...
Abstract | The effects of a change in posture from flat supine to supine with elevated and extended thorax have been investigated in 12 healthy patients under general anaesthesia prior to elective surgery on the stomach. The following parameters were measured: pulse rate, mean arterial blood pressure (MABP), central venous pressure (CVP), ventilation pressure, oesophageal pressure, and arterial oxygen and carbon dioxide tensions. Changes were measured as deviations from initial values before the change of position at 4 and 15 min after the change. One patient (8%) had a 31% fall in MABP and a 87% fall in CVP, requiring treatment outside the standard procedure, but acceptable values were obtained by simple means. Eleven patients showed only minor changes: a mean initial rise in pulse rate of 10% and a fall in CVP of 25%, after which the pulse rate returned to the initial level and the CVP remained stable. MABP was unchanged, as were ventilation pressure, oesophageal pressure and gas tensions. On the basis of reports in the literature and findings in this study, it is concluded that otherwise healthy patients tolerate the posture well, the slight risk of haemodynamic complications being outweighed by the surgical advantages. This posture should be used with caution in patients who may be haemodynamically unable to compensate. |
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MeSH term(s) | Adult ; Anesthesia, Inhalation ; Blood Gas Analysis ; Duodenal Ulcer/surgery ; Female ; Hemodynamics ; Hernia, Hiatal/surgery ; Humans ; Male ; Middle Aged ; Posture ; Respiration ; Thorax |
Language | English |
Publishing date | 1980-12 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 80002-8 |
ISSN | 1399-6576 ; 0001-5172 |
ISSN (online) | 1399-6576 |
ISSN | 0001-5172 |
DOI | 10.1111/j.1399-6576.1980.tb01583.x |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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