Airway difficulty in Mallampati 'class zero' patients: a prospective double-blind observational study

European Journal of Anaesthesiology
Harihar V HegdeP Raghavendra Rao

Abstract

Assessment of Mallampati class is an integral part of preoperative airway evaluation. Increasing Mallampati class is known to be associated with greater difficulty with intubation, but some cases of airway difficulty in Mallampati 'class zero' patients have been reported. We undertook this study to evaluate intubation difficulty and to correlate this with indirect laryngoscopy findings in Mallampati class zero patients. The incidence of Mallampati class zero airway in Indian patients and the difficulty in mask ventilation were also evaluated. Prospective double-blind observational study. A tertiary care medical college hospital in Karnataka, India. September 2010 to April 2011. Patients of either sex, 18 years and older, presenting for preanaesthetic examination for elective surgery were evaluated. All patients with Mallampati class zero airway undergoing general anaesthesia with tracheal intubation were included. Exclusion criteria were upper airway disorder, unstable cervical spine, increased risk for aspiration, ischaemic heart disease, increased intracranial pressure, respiratory distress, those unable to sit upright, or infected with hepatitis B, hepatitis C, HIV or pulmonary tuberculosis, or requiring emergency surgery. A...Continue Reading

References

May 1, 1987·Anaesthesia·G L Samsoon, J R Young
Jul 1, 1985·Canadian Anaesthetists' Society Journal·S R MallampatiP L Liu
Nov 1, 1984·Anaesthesia·R S Cormack, J Lehane
Feb 1, 1997·Anesthesiology·K YamamotoT Kobayashi
Sep 5, 1998·Anesthesia and Analgesia·S EmmonsU Ramakrishnan
Apr 26, 2002·Anesthesia and Analgesia·Xiaoyuan XieM Ramez Salem
Aug 29, 2002·Anesthesia and Analgesia·M Shamir, O Hadash
Feb 25, 2003·Anesthesia and Analgesia·V K GroverMonish Tomar
Feb 26, 2004·Anesthesia and Analgesia·Bingshuang Fang, James Norris
Jul 27, 2006·Anaesthesia·C ShastriM Sarkar
Oct 27, 2006·Anesthesiology·Sachin KheterpalThomas A Ludwig
Nov 20, 2009·Anesthesia and Analgesia·Mohammad El-Orbany, Harvey J Woehlck
Dec 17, 2011·Indian Journal of Anaesthesia·G Indira

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Citations

Jun 10, 2014·Nigerian Journal of Clinical Practice·L PangY F Wang
Dec 4, 2012·European Journal of Anaesthesiology·Jochen Hinkelbein, Martin Hellmich
Dec 18, 2012·European Journal of Anaesthesiology·Harihar V HegdeP Raghavendra Rao
Feb 7, 2013·European Journal of Anaesthesiology·Tiberiu EzriCarin A Hagberg
Jun 1, 2013·AORN Journal·Victoria M Steelman, Paula R Graling

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