Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane

Objective: To find out if the addition of Nitrous Oxide to Sevoflurane significantly reduces induction time and to study the effect of Nitrous Oxide on the frequency of adverse events during induction. Study Design: Quasi-experimental study Place and Duration of Study: Operation Theatre Compl...

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Main Authors: Ihtisham Ul Haq, Muhammad Umar Zahoor, Farhat Afshan Jelani
Format: Article
Language:English
Published: Army Medical College Rawalpindi 2023-02-01
Series:Pakistan Armed Forces Medical Journal
Subjects:
Online Access:https://www.pafmj.org/index.php/PAFMJ/article/view/5913
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author Ihtisham Ul Haq
Muhammad Umar Zahoor
Farhat Afshan Jelani
author_facet Ihtisham Ul Haq
Muhammad Umar Zahoor
Farhat Afshan Jelani
author_sort Ihtisham Ul Haq
collection DOAJ
description Objective: To find out if the addition of Nitrous Oxide to Sevoflurane significantly reduces induction time and to study the effect of Nitrous Oxide on the frequency of adverse events during induction. Study Design: Quasi-experimental study Place and Duration of Study: Operation Theatre Complex, PAF Hospital Mushaf Sargodha Pakistan from Jul to Sep 2018. Methodology: One hundred adult indoor patients undergoing elective surgeries were included in the study. Their ages were from 18 to 34yrs, and all fell in ASA I and II category. In Group-A, 43 and Group- B, 57 patients were enrolled. Sevoflurane at a high concentration of 8% was given to all patients for induction. In Group-A, 100% oxygen was used as a vehicle, while in Group-B, 70% Nitrous Oxide and 30% oxygen were used as vehicles. Induction time was measured from switching Sevoflurane to when the patients’ arms fell horizontal. We documented adverse effects, including coughing, laryngospasm,bronchospasm, fall in SpO2 <94%, apnea, excitation (head or limb movements), bradycardia and arrhythmias were documented. Results: Mean induction time was 59.00±13.00s and 58.00±8.00s in Groups A and B, respectively. The difference was statistically insignificant (p-value=0.874). Similarly, there was no significant difference in adverse events between the two groups. Conclusion: We concluded that adding Nitrous Oxide has no clinically significant advantage in the induction of anaesthesia with Sevoflurane in adults.
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spelling doaj.art-1ee5f64cbe4e487a8a0c972ba8667c9a2023-03-30T06:25:23ZengArmy Medical College RawalpindiPakistan Armed Forces Medical Journal0030-96482411-88422023-02-0173110.51253/pafmj.v73i1.5913Nitrous Oxide Influence on Induction of Anaesthesia with SevofluraneIhtisham Ul Haq0Muhammad Umar Zahoor1Farhat Afshan Jelani2Armed Forces Hospital Jizan, Kingdom of Saudi ArabiaArmed Forces Hospital Jizan, Kingdom of Saudi ArabiaPakistan Air Force Hospital, Lahore Pakistan Objective: To find out if the addition of Nitrous Oxide to Sevoflurane significantly reduces induction time and to study the effect of Nitrous Oxide on the frequency of adverse events during induction. Study Design: Quasi-experimental study Place and Duration of Study: Operation Theatre Complex, PAF Hospital Mushaf Sargodha Pakistan from Jul to Sep 2018. Methodology: One hundred adult indoor patients undergoing elective surgeries were included in the study. Their ages were from 18 to 34yrs, and all fell in ASA I and II category. In Group-A, 43 and Group- B, 57 patients were enrolled. Sevoflurane at a high concentration of 8% was given to all patients for induction. In Group-A, 100% oxygen was used as a vehicle, while in Group-B, 70% Nitrous Oxide and 30% oxygen were used as vehicles. Induction time was measured from switching Sevoflurane to when the patients’ arms fell horizontal. We documented adverse effects, including coughing, laryngospasm,bronchospasm, fall in SpO2 <94%, apnea, excitation (head or limb movements), bradycardia and arrhythmias were documented. Results: Mean induction time was 59.00±13.00s and 58.00±8.00s in Groups A and B, respectively. The difference was statistically insignificant (p-value=0.874). Similarly, there was no significant difference in adverse events between the two groups. Conclusion: We concluded that adding Nitrous Oxide has no clinically significant advantage in the induction of anaesthesia with Sevoflurane in adults. https://www.pafmj.org/index.php/PAFMJ/article/view/5913Adult inhalational inductionNitrous oxideSevoflurane
spellingShingle Ihtisham Ul Haq
Muhammad Umar Zahoor
Farhat Afshan Jelani
Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
Pakistan Armed Forces Medical Journal
Adult inhalational induction
Nitrous oxide
Sevoflurane
title Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
title_full Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
title_fullStr Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
title_full_unstemmed Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
title_short Nitrous Oxide Influence on Induction of Anaesthesia with Sevoflurane
title_sort nitrous oxide influence on induction of anaesthesia with sevoflurane
topic Adult inhalational induction
Nitrous oxide
Sevoflurane
url https://www.pafmj.org/index.php/PAFMJ/article/view/5913
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AT muhammadumarzahoor nitrousoxideinfluenceoninductionofanaesthesiawithsevoflurane
AT farhatafshanjelani nitrousoxideinfluenceoninductionofanaesthesiawithsevoflurane