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Prophylactic Infusions of Phenylephrine and Ephedrine during Combined Spinal Epidural Anaesthesia for Caesarean Section: A Comparative Study | OMICS International | Abstract
ISSN: 2155-6148

Journal of Anesthesia & Clinical Research
Open Access

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Research Article

Prophylactic Infusions of Phenylephrine and Ephedrine during Combined Spinal Epidural Anaesthesia for Caesarean Section: A Comparative Study

Odagme MT, Fyneface-Ogan S* and Mato CN

Department of Anaesthesia, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria

*Corresponding Author:
Dr. Sotonye Fyneface-Ogan
Department of Anaesthesia
University of Port Harcourt Teaching Hospital
Port Harcourt, Nigeria
Tel: +234-8033426236
E-mail: [email protected]

Received Date: September 21, 2013; Accepted Date: October 17, 2013; Published Date: October 19, 2013

Citation: Odagme MT, Fyneface-Ogan S, Mato CN (2013) Prophylactic Infusions of Phenylephrine and Ephedrine during Combined Spinal Epidural Anaesthesia for Caesarean Section: A Comparative Study. J Anesth Clin Res 4:357. doi: 10.4172/2155-6148.1000357

Copyright: © 2013 Odagme MT, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Background: Hypotension is the most common adverse effect in parturients after spinal anaesthesia for Caesarean section. Despite various pharmacological and non-pharmacological methods used in its prevention and treatment, vasopressors have become very important in the management of this form of hypotension.

Objective: This study was aimed at comparing the efficacy and safety of prophylactic intravenous infusions of phenylephrine and ephedrine at preventing maternal hypotension during Combined Spinal Epidural anaesthesia (CSE) for Caesarean section.

Methods: Sixty ASA I and II patients scheduled for elective Caesarean section, were randomly allocated into two groups. Patients in Group I received Phenylephrine 80 μg/min while patients in Group II received Ephedrine 1 mg/min immediately after the subarachnoid 10 mg plain bupivacaine injection while the epidural catheter was being inserted and secured. All the patients received a crystalloid preload of 1 litre of 0.9% normal saline prior to the induction of CSE.

Results: The overall incidence of hypotension was 8.5% (6.7% in the phenylephrine group and 10.3% in the ephedrine groups). The lowest systolic (105.8 ± 9.2 mmHg) and diastolic arterial pressures (60.9 ± 8.9 mmHg) occurred in the ephedrine group while the lowest heart rates occurred in the phenylephrine group. The mean umbilical artery pH was 7.3 while Apgar scores at 1st and 5th min were essentially the same in the two groups.

Conclusion: Prophylactic intravenous infusions of phenylephrine and ephedrine are safe and effective at reducing the incidence and severity of hypotension during combined spinal epidural anaesthesia for elective Caesarean section with no associated neonatal acidosis.


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