dc.creator | Altermatt, FR | |
dc.creator | Munoz, HR | |
dc.creator | Delfino, AE | |
dc.creator | Cortinez, LI | |
dc.date.accessioned | 2024-01-10T13:52:27Z | |
dc.date.available | 2024-01-10T13:52:27Z | |
dc.date.created | 2024-01-10T13:52:27Z | |
dc.date.issued | 2005 | |
dc.identifier | 10.1093/bja/aei231 | |
dc.identifier | 1471-6771 | |
dc.identifier | 0007-0912 | |
dc.identifier | MEDLINE:16143575 | |
dc.identifier | https://doi.org/10.1093/bja/aei231 | |
dc.identifier | https://repositorio.uc.cl/handle/11534/79664 | |
dc.identifier | WOS:000232595900022 | |
dc.description.abstract | Background. In obese patients, reduced functional residual capacity exacerbated by supine position might decrease the effectiveness of pre-oxygenation and the tolerance to apnoea. The aim of this study was to compare the effect of body posture during pre-oxygenation, sitting or supine, on its effectiveness in obese patients. | |
dc.description.abstract | Methods. Forty obese patients (BMI >= 35 kg m(-2)) undergoing surgery with general anaesthesia were randomly assigned to one of two groups: Group 1 (sitting, n=20) or Group 2 (supine, n=20). In the predetermined body position, pre-oxygenation was achieved with eight deep breaths within 60 s and an oxygen flow of 10 litre min(-1). After rapid sequence induction of anaesthesia in decubitus position, the trachea was intubated and the patient was left apneic and disconnected from the anaesthesia circuit until Sp(o2) decreased to 90%. The time taken for desaturation to 90% from the end of induction of anaesthesia was recorded. Arterial blood oxygen tension was measured before (baseline) and after pre-oxygenation. Values were compared with two-way anova and unpaired Student's t-test. | |
dc.description.abstract | Results. Oxygen and carbon dioxide tensions were similar between groups, both at baseline and after pre-oxygenation. However, the mean time to desaturation to 90% was significantly longer in the sitting group compared with the supine group [mean (sd): 214 (28) vs 162 (38) s, P < 0.05]. | |
dc.description.abstract | Conclusions. Pre-oxygenation in sitting position significantly extends the tolerance to apnoea in obese patients when compared with the supine position. | |
dc.language | en | |
dc.publisher | ELSEVIER SCI LTD | |
dc.rights | registro bibliográfico | |
dc.subject | anaesthetic techniques, pre-oxygenation | |
dc.subject | complications, obesity | |
dc.subject | position, effects | |
dc.subject | PREOXYGENATION | |
dc.subject | WOMEN | |
dc.title | Pre-oxygenation in the obese patient: effects of position on tolerance to apnoea | |
dc.type | artículo | |