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Abstract #6898 Published in IGR 4-1
Comparative evaluation of intraocular pressure changes subsequent to insertion of laryngeal mask airway and endotracheal tube
Ghai B; Sharma A; Akhtar SJournal of Postgraduate Medicine 2001; 47: 181-184
AIMS: To evaluate the intraocular pressure (IOP) and hemodynamic changes subsequent to insertion of laryngeal mask airway and endotracheal tube. SUBJECTS AND METHODS: This study was conducted in 50 adult patients. Standard general anesthesia was administered to all patients. After three minutes of induction of anesthesia, baseline measurements of heart rate, non-invasive blood pressure and IOP were taken, following which patients were divided into two groups: a laryngeal mask airway was inserted in group 1 and a tracheal tube in group 2. These measurements were repeated at 15-30 seconds, and every minute thereafter up to five minutes after airway instrumentation. RESULTS: A statistically significant rise in heart rate, systolic blood pressure, diastolic blood pressure and IOP was seen in both groups subsequent to insertion of the laryngeal mask airway or endodotracheal tube. The mean maximum increase was statistically greater after endotracheal intubation than after laryngeal mask airway insertion. The duration of statistically significant pressure responses was also longer after endotracheal intubation. CONCLUSIONS: Laryngeal mask airway is an acceptable alternative technique for ocular surgeries, offering advantages in terms of IOP and cardiovascular stability compared to tracheal intubation.
Dr. B. Ghai, Department of Anaesthesia, Maularia Azad Medical College, C3A/51C, Janak Puri, New Delhi 110 058, India. ghalbabita@hotmail.com
Classification:
12.17 Anesthesia (Part of: 12 Surgical treatment)
