open access

Vol 89, No 8 (2018)
Research paper
Published online: 2018-08-31
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Prophylactic Effects of Ephedrine, Ondansetron and Ringer on Hemodynamic Changes during Cesarean Section under Spinal Anesthesia — a randomized clinical trial

Mohsen Sabermoghaddam Ranjbar1, Shima Sheybani1, Fatemeh Jahanbin1
DOI: 10.5603/GP.a2018.0078
·
Pubmed: 30215466
·
Ginekol Pol 2018;89(8):454-459.
Affiliations
  1. mashad university of medical sciences, Iran, Islamic Republic Of

open access

Vol 89, No 8 (2018)
ORIGINAL PAPERS Obstetrics
Published online: 2018-08-31

Abstract

Background: Hemodynamic change during spinal anaesthesia for cesarean section is prevalent.

Objective: Comparing the prophylactic effects of ephedrine, ondansetron and ringer on hemodynamic changes in patients undergoing cesarean section with spinal anaesthesia.

Material and methods: This randomized clinical trial was carried out on pregnant women undergoing elective cesarean sec­tion referred to teaching hospitals of Mashhad, Iran. Patients allocated to three groups of intravenous ondansetron (O) (4 mg, 5 min),intramuscular ephedrine (E) (25 mg, 25 min) and ringer (R) (500 ml, 20 min) prior to spinal anaesthesia. Anaesthesia inducted with 10–15 mg of bupivacaine. Vital signs were recorded every 3 minutes for 18 minutes including systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), pulse rate (PR), pulse oximetry (SpO2).

Results: Ninety patients with a mean age of 29.4 ± 5.4 years were studied in three groups of O (n = 30), E (n = 30), R (n = 30). Results showed a statistically significant difference in the incidence rate of hypotension 12 minutes after spinal anaesthesia in the three groups, but no statistically significant difference was found in the rest of minutes among the three groups. Dur­ing follow-up minutes, bradycardia was observed in only one patient (1.1%) of Group O and no cases of this sign were observed in other minutes and other groups.

Conclusion: Intramuscular administration of ephedrine 25 minutes prior to the spinal anaesthesia leads to better prevention of systolic blood pressure changes compared with intravenous ondansetron and ringer, while administration of ondansetron and ringer had the same effects on reducing hemodynamic changes.

Abstract

Background: Hemodynamic change during spinal anaesthesia for cesarean section is prevalent.

Objective: Comparing the prophylactic effects of ephedrine, ondansetron and ringer on hemodynamic changes in patients undergoing cesarean section with spinal anaesthesia.

Material and methods: This randomized clinical trial was carried out on pregnant women undergoing elective cesarean sec­tion referred to teaching hospitals of Mashhad, Iran. Patients allocated to three groups of intravenous ondansetron (O) (4 mg, 5 min),intramuscular ephedrine (E) (25 mg, 25 min) and ringer (R) (500 ml, 20 min) prior to spinal anaesthesia. Anaesthesia inducted with 10–15 mg of bupivacaine. Vital signs were recorded every 3 minutes for 18 minutes including systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), pulse rate (PR), pulse oximetry (SpO2).

Results: Ninety patients with a mean age of 29.4 ± 5.4 years were studied in three groups of O (n = 30), E (n = 30), R (n = 30). Results showed a statistically significant difference in the incidence rate of hypotension 12 minutes after spinal anaesthesia in the three groups, but no statistically significant difference was found in the rest of minutes among the three groups. Dur­ing follow-up minutes, bradycardia was observed in only one patient (1.1%) of Group O and no cases of this sign were observed in other minutes and other groups.

Conclusion: Intramuscular administration of ephedrine 25 minutes prior to the spinal anaesthesia leads to better prevention of systolic blood pressure changes compared with intravenous ondansetron and ringer, while administration of ondansetron and ringer had the same effects on reducing hemodynamic changes.

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Keywords

hemodynamic changes, ondansetron, ringer, ephedrine, cesarean section, spinal anesthesia

About this article
Title

Prophylactic Effects of Ephedrine, Ondansetron and Ringer on Hemodynamic Changes during Cesarean Section under Spinal Anesthesia — a randomized clinical trial

Journal

Ginekologia Polska

Issue

Vol 89, No 8 (2018)

Article type

Research paper

Pages

454-459

Published online

2018-08-31

DOI

10.5603/GP.a2018.0078

Pubmed

30215466

Bibliographic record

Ginekol Pol 2018;89(8):454-459.

Keywords

hemodynamic changes
ondansetron
ringer
ephedrine
cesarean section
spinal anesthesia

Authors

Mohsen Sabermoghaddam Ranjbar
Shima Sheybani
Fatemeh Jahanbin

References (16)
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