Effect of oxygen treatment on heart rate after abdominal surgery.

Abstract:

BACKGROUND:Cardiac complications are common during the postoperative period and may be associated with hypoxemia and tachycardia. Preliminary studies in high-risk patients after operation have shown a possible beneficial effect of oxygen therapy on arterial oxygen saturation and heart rate. METHODS:The authors studied the effect of oxygen therapy on arterial oxygen saturation and heart rate in 100 consecutive unselected patients randomly and double blindly allocated to receive air or oxygen therapy between the first and fourth day after major abdominal surgery. RESULTS:The median arterial oxygen saturation rate increased significantly from 96% to 99% (P < 0.0001) and the heart rate decreased significantly from 85 beats/min to 81 beats/min (P < 0.0001) during oxygen supplementation compared with air administered by a binasal catheter. The greatest decrease in heart rate occurred in patients with the lowest oxygen saturation or the highest heart rate values before oxygen supplementation. Overall, 73% of this unselected group of patients responded with decreased heart rate during supplemental oxygen therapy. No significant differences in changes in heart rate after oxygen supplementation were found between patients with or without an epidural catheter or between the postoperative day studied. CONCLUSION:Postoperative oxygen therapy increased arterial oxygen saturation and decreased heart rate after uncomplicated abdominal surgery in a consecutive unselected group of patients who received routine postoperative care.

journal_name

Anesthesiology

journal_title

Anesthesiology

authors

Rosenberg-Adamsen S,Lie C,Bernhard A,Kehlet H,Rosenberg J

doi

10.1097/00000542-199902000-00008

subject

Has Abstract

pub_date

1999-02-01 00:00:00

pages

380-4

issue

2

eissn

0003-3022

issn

1528-1175

journal_volume

90

pub_type

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