| Circulatory responses to laryngeal mask airway insertion or tracheal intubation in normotensive and hypertensive patients. | |
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MedLine Citation:
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PMID: 7534216 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of laryngeal mask airway (LMA) insertion and tracheal intubation on circulatory responses were studied in normotensive (n = 24) and hypertensive (n = 22) patients. In a randomized, double-blind manner, LMA insertion or tracheal intubation was performed after induction of anaesthesia with thiopentone and muscle relaxation with succinylcholine. In both normotensive and hypertensive patients, heart rate (HR), mean arterial pressure (MAP) and rate-pressure product increased after tracheal intubation or LMA insertion compared with baseline (P < 0.05). The haemodynamic changes were greater after intubation than after LMA insertion (P < 0.05). Following intubation of the trachea or insertion of the LMA, HR increased more markedly in hypertensive patients than in normotensive patients (P < 0.05). Plasma adrenaline and noradrenaline concentrations after tracheal intubation or LMA insertion increased compared with baseline values (P < 0.05) in normotensive and hypertensive patients. The increase in noradrenaline concentration after tracheal intubation was greater than that after LMA insertion (P < 0.05). No patient revealed ECG evidence of myocardial ischaemia. We conclude that insertion of LMA is associated with less circulatory responses than tracheal intubation in both normotensive and hypertensive patients. |
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Authors:
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Y Fujii; H Tanaka; H Toyooka |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Canadian journal of anaesthesia = Journal canadien d'anesthésie Volume: 42 ISSN: 0832-610X ISO Abbreviation: Can J Anaesth Publication Date: 1995 Jan |
Date Detail:
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Created Date: 1995-04-14 Completed Date: 1995-04-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8701709 Medline TA: Can J Anaesth Country: CANADA |
Other Details:
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Languages: eng Pagination: 32-6 Citation Subset: IM |
Affiliation:
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Department of Anaesthesiology, Toride Kyodo General Hospital, Ibaraki, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Anesthesia, Intravenous Blood Pressure / physiology* Cardiac Complexes, Premature / etiology Double-Blind Method Epinephrine / blood Female Heart Rate / physiology* Humans Hypertension / physiopathology* Intubation, Intratracheal* / instrumentation Laryngeal Masks* Male Middle Aged Myocardial Infarction / etiology Neuromuscular Junction / drug effects Norepinephrine / blood Succinylcholine / administration & dosage Thiopental / administration & dosage Ventricular Dysfunction / etiology |
| Chemical | |
Reg. No./Substance:
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306-40-1/Succinylcholine; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 76-75-5/Thiopental |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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