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Abstract #46897 Published in IGR 13-3
Insertion of laryngeal mask airway does not increase the intraocular pressure in children with glaucoma
Bhardwaj N; Yaddanapudi S; Singh S; Pandav SSPaediatric Anaesthesia 2011;
Objectives: It is hypothesized that in children with glaucoma, the insertion of laryngeal mask airway (LMA) will cause lesser rise in intraocular pressure (IOP) than tracheal tube (TT). Aim: To compare the IOP response to LMA and TT insertion in children with glaucoma. Methods/Materials: A prospective, randomized, single-blind study was conducted in 30 glaucomatous ASA-1 children, aged 1-10years scheduled to undergo trabeculectomy. Anesthesia was induced with halothane and maintained for 5min with 1 MAC of halothane after administering atracurium 0.5mg(middle dot)kg(-1) following which LMA or TT was introduced. IOP was measured in both the eyes before and after insertion of airway device for 5min. Results: The IOP increased significantly from 27.3(plus or minus)5.2 to 31.2 (plus or minus) 5.4mmHg (P<0.001) after tracheal intubation but returned to baseline within 5min. The IOP did not change from the baseline after insertion of LMA. The IOP was significantly higher in group TT compared to group LMA at 2min (P=0.004) and 5min (P=0.01) after the device insertion. The heart rate (HR) increased significantly after tracheal intubation and returned to baseline 4min after intubation. The HR increase was significantly more in TT group compared to LMA group at all times of observation. Both systolic blood pressure (SBP; P=0.01) and diastolic blood pressure (DBP; P=0.02) showed an increase at 1min in children in group TT. Conclusion: Insertion of LMA in glaucomatous children is not associated with an increased IOP response or cardiovascular changes.
N. Bhardwaj. Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Resear, .
Classification:
12.17 Anesthesia (Part of: 12 Surgical treatment)
9.1.2 Juvenile glaucoma (Part of: 9 Clinical forms of glaucomas > 9.1 Developmental glaucomas)
