Premium
Intra‐ocular pressure changes following laryngeal mask airway insertion: a comparative study
Author(s) -
Whitford A. M.,
Hone S. W.,
O'Hare B.,
Magner J.,
Eustace P.
Publication year - 1997
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1997.186-az0317.x
Subject(s) - medicine , propofol , laryngeal mask airway , anesthesia , mascara , tracheal tube , airway , laryngeal masks , larynx , intubation , surgery , tracheal intubation
We compared the effects of the Brain laryngeal mask airway with a tracheal tube on intra‐ocular pressure. Propofol was used as induction agent and atracurium as relaxant. Twenty‐six patients with normal intra‐ocular pressure undergoing cataract surgery were randomly allocated to two groups. Group A ( n = 13) had a laryngeal mask airway inserted and Group B ( n = 13) had a tracheal tube inserted. Intra‐ocular pressure was measured just before insertion of the airway, 20 s after insertion and at 2 min. In the laryngeal mask airway group there were no significant changes in mean intra‐ocular pressure. In the tracheal tube group there was a significant rise in mean intra‐ocular pressure at 20 s (p = 0.0056) which returned to pre‐insertion levels at 2 min. We conclude that the laryngeal mask airway continues to have advantages over the tracheal tube for ophthalmic surgery despite the use of propofol and atracurium as anaesthetic agents.