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Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery

BACKGROUND: As one of the most common postoperative complications, hypothermia is the main cause of numerous problems during treatment, especially in elderly patients with decreased cardiac reserves. OBJECTIVES: The aim of the present study was to compare the effects of forced-air warming system (FA...

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Autores principales: Roshan, Mohammad Bagher Akbarpour, Jafarpoor, Hasanali, Shamsalinia, Abbas, Fotokian, Zahra, Hamidi, Seyed Hossein
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10691583/
https://www.ncbi.nlm.nih.gov/pubmed/37861571
http://dx.doi.org/10.4103/aca.aca_20_23
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author Roshan, Mohammad Bagher Akbarpour
Jafarpoor, Hasanali
Shamsalinia, Abbas
Fotokian, Zahra
Hamidi, Seyed Hossein
author_facet Roshan, Mohammad Bagher Akbarpour
Jafarpoor, Hasanali
Shamsalinia, Abbas
Fotokian, Zahra
Hamidi, Seyed Hossein
author_sort Roshan, Mohammad Bagher Akbarpour
collection PubMed
description BACKGROUND: As one of the most common postoperative complications, hypothermia is the main cause of numerous problems during treatment, especially in elderly patients with decreased cardiac reserves. OBJECTIVES: The aim of the present study was to compare the effects of forced-air warming system (FAWS), warmed intravenous fluids (WIVFs) and routine method on hemodynamic parameters, arterial blood gases (ABGs), shivering, and time to awakening in elderly patients undergoing open cardiac surgery (OCS). METHODS: This clinical randomized controlled trial was conducted on 94 elderly patients who underwent OCS at Ayatollah Rouhani Hospital, Babol, Iran. They were divided into three groups, namely FAWS (n=31), WIVFs (n=31) and routine rewarming method (RRWM, with a blanket) (n=32). The data were then recorded in a checklist. Descriptive and inferential statistics were performed using SPSS 26 at a significance level of less than 0.05. RESULTS: The findings demonstrated that the degree of hypothermia had a significant decreasing trend in the groups receiving FAWS and WIVFs (P=0.002). Additionally, increased respiratory rate (P=0.013), higher bicarbonate (HCO3-) levels on arrival up to 4 hours after surgery (P=0.045), reduced lactate level (P=0.005), normal base excess (BE) and accelerated time to awakening (P=0.004) were observed in patients receiving FAWS. There was no significant difference in the study groups regarding shivering. CONCLUSION: The results revealed that FAWS could mitigate the degree of hypothermia, increase body temperature and decrease the postoperative serum lactate levels. Moreover, BE as one of the most important parameters for ABGs, could remain at a normal level. Besides, the use of FAWS could lead to early awakening, and thus facilitate weaning and extubation of these patients.
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spelling pubmed-106915832023-12-02 Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery Roshan, Mohammad Bagher Akbarpour Jafarpoor, Hasanali Shamsalinia, Abbas Fotokian, Zahra Hamidi, Seyed Hossein Ann Card Anaesth Original Article BACKGROUND: As one of the most common postoperative complications, hypothermia is the main cause of numerous problems during treatment, especially in elderly patients with decreased cardiac reserves. OBJECTIVES: The aim of the present study was to compare the effects of forced-air warming system (FAWS), warmed intravenous fluids (WIVFs) and routine method on hemodynamic parameters, arterial blood gases (ABGs), shivering, and time to awakening in elderly patients undergoing open cardiac surgery (OCS). METHODS: This clinical randomized controlled trial was conducted on 94 elderly patients who underwent OCS at Ayatollah Rouhani Hospital, Babol, Iran. They were divided into three groups, namely FAWS (n=31), WIVFs (n=31) and routine rewarming method (RRWM, with a blanket) (n=32). The data were then recorded in a checklist. Descriptive and inferential statistics were performed using SPSS 26 at a significance level of less than 0.05. RESULTS: The findings demonstrated that the degree of hypothermia had a significant decreasing trend in the groups receiving FAWS and WIVFs (P=0.002). Additionally, increased respiratory rate (P=0.013), higher bicarbonate (HCO3-) levels on arrival up to 4 hours after surgery (P=0.045), reduced lactate level (P=0.005), normal base excess (BE) and accelerated time to awakening (P=0.004) were observed in patients receiving FAWS. There was no significant difference in the study groups regarding shivering. CONCLUSION: The results revealed that FAWS could mitigate the degree of hypothermia, increase body temperature and decrease the postoperative serum lactate levels. Moreover, BE as one of the most important parameters for ABGs, could remain at a normal level. Besides, the use of FAWS could lead to early awakening, and thus facilitate weaning and extubation of these patients. Wolters Kluwer - Medknow 2023 2023-10-13 /pmc/articles/PMC10691583/ /pubmed/37861571 http://dx.doi.org/10.4103/aca.aca_20_23 Text en Copyright: © 2023 Annals of Cardiac Anaesthesia https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Original Article
Roshan, Mohammad Bagher Akbarpour
Jafarpoor, Hasanali
Shamsalinia, Abbas
Fotokian, Zahra
Hamidi, Seyed Hossein
Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title_full Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title_fullStr Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title_full_unstemmed Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title_short Effects of a Forced-Air Warming System and Warmed Intravenous Fluids on Hemodynamic Parameters, Shivering, and Time to Awakening in Elderly Patients Undergoing Open Cardiac Surgery
title_sort effects of a forced-air warming system and warmed intravenous fluids on hemodynamic parameters, shivering, and time to awakening in elderly patients undergoing open cardiac surgery
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10691583/
https://www.ncbi.nlm.nih.gov/pubmed/37861571
http://dx.doi.org/10.4103/aca.aca_20_23
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