Document Detail

Insertion of LMA Classic™ with and without digital intraoral manipulation in anesthetized unparalyzed patients.
MedLine Citation:
PMID:  23225929     Owner:  NLM     Status:  PubMed-not-MEDLINE    
BACKGROUND: The standard recommended insertion technique for LMA Classic™ requires the insertion of index finger into the oral cavity. Several anesthesiologists are reluctant to do this. We conducted this study to evaluate the modified technique of insertion of LMA Classic™ (not requiring insertion of fingers into the patient's mouth) against the standard index finger insertion technique.
MATERIALS AND METHODS: This prospective, randomized, comparative study was conducted on 200 consenting patients. Patients suitable for anesthetic with LMA Classic™ were randomized to standard technique group (standard insertion technique) and modified technique group (technique not requiring digital intraoral manipulation). Laryngeal mask airway (LMA) was inserted by five designated anesthesiologists. Anesthetic protocol was standardized. Time taken to achieve an effective airway, ease of insertion, glottic view obtained through LMA, and incidence of sore throat were assessed.
RESULTS: Patient characteristics and duration of surgery were comparable between the groups. Time to achieve an effective airway was comparable [18.5 (8) s with standard technique and 19.7 (10) s with modified technique; data are mean (standard deviation)]. Ease of insertion (92 easy with standard technique and 91 easy with modified technique), success rate (99% in both the groups), glottic view with fiberoptic bronchoscope, and sore throat incidence (six patients with standard technique and eight patients with modified technique) were comparable. The first attempt success rate was significantly higher with the standard technique (98 patients in the standard technique group and 91 patients in the modified technique group).
CONCLUSIONS: LMA Classic™ can be inserted successfully without the need to insert index finger into patient's mouth, though the first attempt success rate is higher with the standard technique.
Handattu M Krishna; Shyamsunder Kamath; Laxmi Shenoy
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of anaesthesiology, clinical pharmacology     Volume:  28     ISSN:  0970-9185     ISO Abbreviation:  J Anaesthesiol Clin Pharmacol     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-12-11     Completed Date:  2012-12-12     Revised Date:  2013-05-30    
Medline Journal Info:
Nlm Unique ID:  9516972     Medline TA:  J Anaesthesiol Clin Pharmacol     Country:  India    
Other Details:
Languages:  eng     Pagination:  481-5     Citation Subset:  -    
Department of Anesthesiology, Kasturba Medical College, Manipal, Manipal University, Manipal, India.
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