"COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"

Hemodynamic changes are major hazards of general anesthesia and are probably generated by direct laryngoscopy and endotracheal intubation. We designed this prospective randomised study to assess the cardiovascular changes after either laryngeal mask airway (LMA), face mask (FM) or endotracheal tube...

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Main Authors: K. Montazari, Kh. Naghibi S.J. Hashemi
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2004-11-01
Series:Acta Medica Iranica
Subjects:
Online Access:http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/508.pdf&manuscript_id=508
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author K. Montazari
Kh. Naghibi S.J. Hashemi
author_facet K. Montazari
Kh. Naghibi S.J. Hashemi
author_sort K. Montazari
collection DOAJ
description Hemodynamic changes are major hazards of general anesthesia and are probably generated by direct laryngoscopy and endotracheal intubation. We designed this prospective randomised study to assess the cardiovascular changes after either laryngeal mask airway (LMA), face mask (FM) or endotracheal tube (ETT) insertion in the airway management of adult patients anesthetised with nitrous oxide and halothane. A total of 195 healthy normotensive adult patients with normal airways were randomly assigned to one of the three groups according to their airway management (n= 65 each) for transurethral lithotripsy procedures. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial blood pressure (MAP) values were recorded before the induction of anesthesia, and then every three minutes until 30 min thereafter. The mean maximum HR and MAP values obtained during 15 and 30 minutes after insertion of LMA were 81±13, 73±8 bpm and 82±14, 79 ±11 mmHg, respectively which were significantly smaller compared to those with FM (84±12, 80±6 bpm and 86±10, 83±13 mmHg) and ETT (96±8, 88±7 bpm and 91±11, 82±9 mmHg) (P< 0.05). Direct stimulation of the trachea appears to be a major cause of the hemodynamic changes associated with tracheal intubation during general anesthesia, but why hemodynamic changes in LMA were smaller than facemask needs further study. In healthy normotensive patients the use of LMA for the airway management during general anesthesia results in a smaller cardiovascular change than FM and ETT.
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spelling doaj.art-0263883374d64f29a704bfded99fe1a62022-12-22T00:41:27ZengTehran University of Medical SciencesActa Medica Iranica0044-60252004-11-01426437440"COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"K. MontazariKh. Naghibi S.J. HashemiHemodynamic changes are major hazards of general anesthesia and are probably generated by direct laryngoscopy and endotracheal intubation. We designed this prospective randomised study to assess the cardiovascular changes after either laryngeal mask airway (LMA), face mask (FM) or endotracheal tube (ETT) insertion in the airway management of adult patients anesthetised with nitrous oxide and halothane. A total of 195 healthy normotensive adult patients with normal airways were randomly assigned to one of the three groups according to their airway management (n= 65 each) for transurethral lithotripsy procedures. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial blood pressure (MAP) values were recorded before the induction of anesthesia, and then every three minutes until 30 min thereafter. The mean maximum HR and MAP values obtained during 15 and 30 minutes after insertion of LMA were 81±13, 73±8 bpm and 82±14, 79 ±11 mmHg, respectively which were significantly smaller compared to those with FM (84±12, 80±6 bpm and 86±10, 83±13 mmHg) and ETT (96±8, 88±7 bpm and 91±11, 82±9 mmHg) (P< 0.05). Direct stimulation of the trachea appears to be a major cause of the hemodynamic changes associated with tracheal intubation during general anesthesia, but why hemodynamic changes in LMA were smaller than facemask needs further study. In healthy normotensive patients the use of LMA for the airway management during general anesthesia results in a smaller cardiovascular change than FM and ETT.http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/508.pdf&manuscript_id=508Laryngeal mask airwayFacemaskEndotracheal tubeHemodynamic changes
spellingShingle K. Montazari
Kh. Naghibi S.J. Hashemi
"COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
Acta Medica Iranica
Laryngeal mask airway
Facemask
Endotracheal tube
Hemodynamic changes
title "COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
title_full "COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
title_fullStr "COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
title_full_unstemmed "COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
title_short "COMPARISON OF HEMODYNAMIC CHANGES AFTER INSERTION OF LARYNGEAL MASK AIRWAY, FACEMASK AND ENDOTRACHEAL INTUBATION"
title_sort comparison of hemodynamic changes after insertion of laryngeal mask airway facemask and endotracheal intubation
topic Laryngeal mask airway
Facemask
Endotracheal tube
Hemodynamic changes
url http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/508.pdf&manuscript_id=508
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