• Can J Anaesth · Oct 1997

    Randomized Controlled Trial Clinical Trial

    Cardiovascular responses to tracheal extubation or LMA removal in normotensive and hypertensive patients.

    • Y Fujii, H Toyooka, and H Tanaka.
    • Department of Anaesthesiology, University of Tsukuba Institute of Clinical Medicine, Ibaraki, Japan.
    • Can J Anaesth. 1997 Oct 1;44(10):1082-6.

    PurposeThis study was undertaken to evaluate the haemodynamic changes of tracheal extubation or removal of a laryngeal mask airway (LMA) in normotensive and hypertensive patients.MethodsIn a randomized trial of normotensive and hypertensive patients (n = 40 of each), tracheal extubation or LMA removal was performed. Changes in heart rate (HR), mean arterial pressure (MAP) and rate-pressure product (RPP) were measured before and 1, 2, 3, 5, and 10 min after tracheal extubation or LMA removal.ResultsIn normotensive patients, HR, MAP and RPP increased following tracheal extubation or LMA removal, and remained elevated for a maximum three minutes (P < 0.05). In hypertensive patients, the haemodynamic increases in response to extubation or LMA removal were observed for up to five minutes (P < 0.05). The immediate cardiovascular responses to extubation were greater than those related to LMA removal in both normotensive and hypertensive patients (normotensive: HR; 95 +/- 14 vs 81 +/- 11, MAP; 124 +/- 18 vs 106 +/- 10, RPP; 14,951 +/- 2720 vs 10,654 +/- 1898, hypertensive: HR 105 +/- 10 vs 87 +/- 13, MAP; 146 +/- 17 vs 119 +/- 12, RPP; 20,492 +/- 1674 vs 12,862 +/- 2115, mean +/- SD, P < 0.05). Following extubation or LMA removal, these haemodynamic variables increased more markedly in hypertensive patients than in normotensive patients (P < 0.05).ConclusionRemoval of LMA is associated with less cardiovascular change than tracheal extubation in both normotensive and hypertensive patients.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…