Zahedan Journal of Research in Medical Sciences

Published by: Kowsar

Effects of Continuous vs. Intermittent Method of Entonox on Labor Progress

Jila Agah 1 , * , Roya Baghany 2 , Seyed Hossein Safiabadi-Tali 3 and Yaser Tabarraie 4
Authors Information
1 Department of Obstetrics and Gynecology, Sabzevar University of Medical Sciences, Sabzevar, IR Iran
2 Department of Midwifery, Sabzevar University of Medical Sciences, Sabzevar, IR Iran
3 Resident of Internal Medicine, Qazvin University of Medical Sciences, Qazvin, IR Iran
4 Department of Statistics and Health, Sabzevar University of Medical Sciences, Sabzevar, IR Iran
Article information
  • Zahedan Journal of Research in Medical Sciences: November 28, 2015, 17 (11); e2215
  • Published Online: November 1, 2015
  • Article Type: Research Article
  • Received: June 23, 2014
  • Accepted: September 24, 2014
  • DOI: 10.17795/zjrms-2215

To Cite: Agah J, Baghany R, Safiabadi-Tali S H, Tabarraie Y. Effects of Continuous vs. Intermittent Method of Entonox on Labor Progress, Zahedan J Res Med Sci. 2015 ; 17(11):e2215. doi: 10.17795/zjrms-2215.

Copyright © 2015, Zahedan University of Medical Sciences.This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License ( which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
1. Background
2. Objectives
3. Patients and Methods
4. Results
5. Discussion
  • 1. Wong CA. Advances in labor analgesia. Int J Womens Health. 2010; 1: 139-54[PubMed]
  • 2. Collins MR, Starr SA, Bishop JT, Baysinger CL. Nitrous oxide for labor analgesia: expanding analgesic options for women in the United States. Rev Obstet Gynecol. 2012; 5(3-4)-31[PubMed]
  • 3. Rosen MA. Nitrous oxide for relief of labor pain: a systematic review. Am J Obstet Gynecol. 2002; 186(5 Suppl Nature)-26[PubMed]
  • 4. Wong CA. Current management of labor pain in women. Int J womens Health. 2013; 1: 109-11
  • 5. Wang B, Zhang X, Wei L. [Application of nitrous oxide in labor analgesia]. Zhonghua Fu Chan Ke Za Zhi. 1994; 29(6): 330-1[PubMed]
  • 6. Zare Tazarjani F, Sekhavat L, Karimzadeh Meybodi MA. The effect of continuous entonox inhalation on the length of labor in duration of active phase of labor [in Persian]. J Babol Univ Med Sci. 2010; 11(6): 21-5
  • 7. Smith R, Conachie J. Contraversies in obanesthesic and analgesic. 2012; : 197
  • 8. Creasy RK, Resnik R. Maternal-fetal medicine: Principles and practice. 1994;
  • 9. Pita CP, Pazmino S, Vallejo M, Salazar-Pousada D, Hidalgo L, Perez-Lopez FR, et al. Inhaled intrapartum analgesia using a 50-50 % mixture of nitrous oxide-oxygen in a low-income hospital setting. Arch Gynecol Obstet. 2012; 286(3): 627-31[DOI][PubMed]
  • 10. Agah J, Baghani R, Tabaraee Y. Comparison of continuous and intermittent inhalation methods of Entonox on labor pain: a Randomized clinical trial [in persian]. J Mazandaran Univ Med Sci 2014; 23(1): 87-93
  • 11. Salahian T, Safdari F, Jahantighi S. The effect of entonox on labor pain and outcome of delivery in primiparous in Iranshahr, Iran (2009) [in Persian]. J Gorgan Bouyeh Faculty Nurs Midwif. 2010; 7(1): 1-9
  • 12. Iravani M. The efficacy of entonox inhalation on pain intensity and duration of delivery [in Persian]. Iran J Obstet Gynecol Infertil. 2008; 3(11): 7-13
  • 13. Rezayi H, Khodabandeh S, Mohammadalizadeh S. Entonox gas effect on labor-related variables referring to Imam Ali (AS) in Zarand [in Persian]. Iran J Nurs Midwif. 2006; 6(1): 15-22
  • 14. Jaffari RM, Barati M, Torabzadeh-Bafghi V, Torabzadeh-Bafghi A. The effect of entonox gas inhalation on the duration of active phase of labor and outcome of delivery [in Persian]. Jundishapur Sci Med J. 2013; 12(1): 13-9
  • 15. Arthurs GJ, Rosen M. Acceptability of continuous nasal nitrous oxide during labour--a field trial in six maternity hospitals. Anaesthesia. 1981; 36(4): 384-8[PubMed]
Creative Commons License Except where otherwise noted, this work is licensed under Creative Commons Attribution Non Commercial 4.0 International License .

Search Relations:



Create Citiation Alert
via Google Reader

Readers' Comments