Comparison of the Effects of Spinal Anaesthesia and General Anaesthesia on Postoperative Oxygenation and Perioperative Mortality

P.J. MCKENZIE; H.Y. WISHART; K.M.S. DEWAR; I. Gray; Gregory H. Smith

doi:10.1093/bja/52.1.49

January 1, 1980British Journal of AnaesthesiaOpen Access

Comparison of the Effects of Spinal Anaesthesia and General Anaesthesia on Postoperative Oxygenation and Perioperative Mortality

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Why the study?

Does spinal anaesthesia improve postoperative oxygenation and reduce mortality compared to general anaesthesia in patients undergoing surgery for fractured neck of femur?

Key Points

To evaluate and compare the effects of spinal anaesthesia versus general anaesthesia on postoperative arterial oxygenation and 4-week perioperative mortality in patients undergoing surgery for a fractured neck of femur.
Enrolled 100 patients presenting for surgical repair of fractured neck of femur.
Allocated patients to receive either spinal anaesthesia (SAB) or general anaesthesia (GA).
Assessed baseline and 1-hour postoperative arterial oxygen tension (PaO2) and recorded 4-week all-cause mortality.
Baseline mean PaO2 was 9.04 kPa before operation across all participants.
At 1 hour post-surgery, PaO2 decreased significantly by 0.68 kPa in the GA group, whereas blood-gas values remained unchanged in the SAB group.
Postoperative 4-week mortality was 15.7% (8 patients) in the GA group versus 10.2% (5 patients) in the SAB group, a difference that was not statistically significant.

Structured PICO

Does spinal anaesthesia improve postoperative oxygenation and reduce mortality compared to general anaesthesia in patients undergoing surgery for fractured neck of femur?

P

Population

100 patients presenting for surgical treatment of fractured neck of femur

I

Intervention

Spinal anaesthesia (SAB)

C

Comparator

General anaesthesia (GA)

O

Outcome

Postoperative oxygenation (PaO2) at 1 hour after operation and perioperative mortality within 4 weeks of surgeryhard clinical

Implication

Spinal anesthesia preserves postoperative oxygenation better than general anesthesia in patients with fractured neck of femur, though 4-week mortality differences were not statistically significant.

Abstract

One hundred patients presenting for surgical treatment of fractured neck of femur were allocated to receive either spinal (SAB) or general (GA) anaesthesia. Before operation, the mean PaO2 was 9.04 kPa. There was a significant decrease in PaO2 of 0.68 kPa in GA group at 1 h after operation, while blood-gas values were unchanged in SAB group. Eight patients (15.7%) in GA group and five patients (10.2%) in SAB group died within 4 weeks of surgery. The difference was not statistically significant.

Discussion

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Cite This Study

MCKENZIE et al. (1980) studied this question.

synapsesocial.com/papers/6a7988238d250a4360f39b43 https://doi.org/10.1093/bja/52.1.49

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Comparison of the Effects of Spinal Anaesthesia and General Anaesthesia on Postoperative Oxygenation and Perioperative Mortality

Key Points

Structured PICO

Implication

Abstract

Discussion

Cite This Study

Comparison of the Effects of Spinal Anaesthesia and General Anaesthesia on Postoperative Oxygenation and Perioperative Mortality

Key Points

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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