OBSERVATIONAL STUDY FOR COMPARISON OF BEDSIDE TESTS FOR DIFFICULT AIRWAY IN LEAN VERSUS OBESE INDIAN FEMALE PATIENTS
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Keywords
Airway, Obesity, Thyromental, Hyomental, Sternomental
Abstract
Introduction: Airway management is a crucial step while providing General Anaesthesia to patients undergoing surgery. Anticipation of difficult airway specially in high-risk groups like obese patients is of utmost importance for preparation of patient for Anaesthesia. This study aims to find out predictors of difficult airway in obese patients. Materials and Method: Sixty female patients scheduled to undergo elective surgery under General Anesthesia with endotracheal intubation were enrolled in the study. Body Mass Index (BMI) of all patients was calculated and patients with BMI< 30 Kg/sqm were categorized as Lean patients and BMI > 30 Kg/sqm were considered obese patients. Thyromental distance, Hyomental distance and Sternomental distance were measured for all patients and their relation with BMI was studied. Results: Demographic data was charted and parameters under study were compared in lean and obese patients. SMD of ≤12.5 cm, HMD < 6 cm and TMD 6.5cm considered as difficult airway were significantly associated with obese patients as compared to lean patients with p value < 0.001 in each case. Conclusion: Thyromental distance, Hyomental distance and Sternomental distance are associated with difficult airway in obese patients as compared to lean patients.
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