The relationship between abdominal circumference and intravenous ephedrine dose during elective cesarean section under spinal anesthesia

Main Article Content

Natthaporn Harungsri

Abstract

Background: Gravid uterus caused increased abdominal pressure and greater engorgement of the epidural venous resulted in a smaller CSF volume and greater cephalad spread of sensory blockade. We hypothesized that abdominal circumference could reflect the effect of gravid uterus and incidence of hypotension after spinal anesthesia.


Objective: The aim of this study was to evaluate the relationship between abdominal circumference and the amount of intravenous ephedrine dose to treat hypotension during elective cesarean section under spinal anesthesia.


Method: A prospective observational study was conducted in fifty parturients scheduled for elective cesarean section. Abdominal circumference was measured before spinal anesthesia. The blood pressure were obtained at 1st, 2nd, 3rd, 4th, 5th, 7th, 10th, 15th and 20th minutes after spinal injection. The amount of ephedrine to treat hypotension and the maximum level of sensory blockade at the 15th were recorded.


Results: The mean abdominal circumference was 101.10 ± 10.20 cm. There were 27 (54%) patients who had decreased blood pressure and received intravenous ephedrine. There was no significant correlation between abdominal circumference and intravenous ephedrine dose (p-value=0.422), and there was no significant correlation between abdominal circumference and the level of maximum sensory blockade (p-value = 0.945)


Conclusion: Abdominal circumference was not correlated with the amount of intravenous ephedrine dose during elective cesarean section under spinal anesthesia.

Article Details

How to Cite
1.
Harungsri N. The relationship between abdominal circumference and intravenous ephedrine dose during elective cesarean section under spinal anesthesia. Kb. Med. J. [Internet]. 2023 Jan. 10 [cited 2024 Apr. 24];5(2):17-25. Available from: https://he01.tci-thaijo.org/index.php/KBJ/article/view/261040
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Original Article

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