Haemodynamic and electroencephalographic response to insertion of a cuffed oropharyngeal airway: comparison with the laryngeal mask airway
Autor: | Michel Struys, Erwin Crombez, K. Fonck, Georges Rolly, Linda Versichelen, Eric Mortier |
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Rok vydání: | 1998 |
Předmět: |
Haemodynamic response
medicine.medical_treatment Oropharynx Blood Pressure Laryngeal Masks Gynecologic Surgical Procedures Laryngeal mask airway Heart Rate Oropharyngeal airway Monitoring Intraoperative medicine Intubation Intratracheal Humans Alfentanil Analysis of Variance business.industry Tracheal intubation Hemodynamics Electroencephalography Anesthesiology and Pain Medicine Ambulatory Surgical Procedures Bispectral index Anesthesia Female Airway business Propofol medicine.drug |
Zdroj: | British journal of anaesthesia. 81(3) |
ISSN: | 0007-0912 |
Popis: | We have compared the cuffed oropharyngeal airway (COPA), a modified Guedel airway device with a specially designed cuff at its distal end, with the laryngeal mask airway (LMA), on haemodynamic and electroencephalographic (EEG) responses to insertion. In addition, we examined the haemodynamic and EEG changes during initiation of the effect-compartment controlled infusion. We studied 35 female patients undergoing ambulatory gynaecological surgery allocated randomly to received an LMA or COPA to manage the airway. After premedication with midazolam 0.03 mg kg-1 i.v. and low-dose alfentanil (0.01 mg kg-1), anaesthesia was induced and maintained with propofol, using an effect-compartment controlled infusion set at an effect-site concentration of 4 micrograms ml-1. After intercompartmental equilibration, the LMA (group I) or COPA (group II) was inserted and haemodynamic (arterial pressure, heart rate) and EEG (bispectral index (BIS)) responses to insertion studied. The effect-compartment controlled infusion of propofol caused only mild haemodynamic changes during induction. Changes in arterial pressure and heart rate after insertion were similar in both groups and not significantly different from baseline values before insertion. Changes in BIS after insertion were minor and similar between groups. |
Databáze: | OpenAIRE |
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