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KMID : 0356919920250030559
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Korean Journal of Anesthesiology
1992 Volume.25 No. 3 p.559 ~ p.563
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Comparison of Hemodynamic Effect between Laryngeal Mask and Conventional Endotracheal Intubation to Maintain Airway during Induction of General Anesthesia
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Abstract
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The adverse cardiovascular effects of laryngoscopy and endotracheal intubation are well known. We compared the cardiovascular response of conventional tracheal intubation with that of newly developed Laryngeal Mask insertion in twenty-four ASA
class I
patients. Anesthesia was induced with injection of fentanyl 2ug/kg, thiopental sodium 4mg/kg and vecuronium 0.15mg/kg intravenously. Ventilation was controlled for 5 minutes with inhalation of 50% nitrous oxide and 1 vo1% of isoflurane or 1.5 vol
8% of
enflurane before tracheal intubation or laryngeal mask insertion in all patients. The patients are randomly assigned to either tracheal intubation group(ET group) or Laryngeal Mask group(LM group). After tracheal intubation or insertion of
laryngeal
mask, blood pressure(systolic, diastolic and mean)and heart rate were measured for 5 minutes at 1 minute interval. In all the parameter, cardiovascular reponse in ET group was significantly higher than that of LM group for 5 minutes after
intubation. It
is concluded that insertion of Laryngeal Mask is beneficial to a certain patients than use of laryngoscopy and tracheal intubation to avoid harmful cardiovascular respones in the management of airway during general anesthesia.
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