Efficacy of Airway Assessment Variables as Predictors of Difficult Intubation among Northeastern Population in India: A Hospital Based Prospective Study
Journal Title: Indian Journal of Anesthesia and Analgesia - Year 2018, Vol 5, Issue 2
Abstract
Difficult intubation is an important cause of mortality in surgical patients; even more so when it is unanticipated. Predicting difficult intubation with the help of different airway parameters has been the endeavor of all anesthesiologists. However, there are variations in the accuracy of these airway parameters due to differences in race and ethnicity. The present study was aimed to assess the efficacy of various airway parameters in predicting difficult intubation in the northeast Indian population. Methods: Four hundred adult American Society of Anesthesiologists physical status I and II patients scheduled for elective surgery under general anaesthesia requiring tracheal intubation were assessed preoperatively for different predicting factors of difficult laryngoscopy and intubation. Intubation difficulty was assessed by the Intubation Difficulty Scale. Sensitivity, specificity, positive predictive value and negative predictive value were calculated. The association between different variables and difficult intubation was evaluated using Fishers exact test; p-value < 0.05 was considered significant. Results: The mean age of the patients was 43.40±12.49 years; 60% patients were male. 23 (5.75%) patients were having difficult intubation. While all the parameters were strongly able to predict difficulty, thyromental distance < 6 cm and Cormack Lehane grade ³ 3 were having the most strong relative risk (8 and 100.22 respectively; p < 0.0001 for both). Only Cormack Lehane grade ³ 3 was having both good sensitivity and specificity (95.65% and 86.74% respectively). Conclusion: Difficult intubation rate is not different in northeastern Indian population. Thyromental distance , Modified Mallampati score and Cormack Lehane view were the strongest predictors of difficult intubation in the study population.
Authors and Affiliations
Tridip J. Borah1
Keywords
Related Articles
- EP ID EP532854
- DOI 10.21088/ijaa.2349.8471.5218.23
- Views 81
- Downloads 0
Comparitive Study of Intravenous Ramosetron and Ramosetron with Dexamethasone as Prophylactic Anti-PONV in Patients Coming for Elective ENT Surgeries
One of the most common and distressing post-operative complication is post-operative nausea and vomiting (PONV). Though PONV can occur after all surgeries but it occurs more frequently among middle ear surgeries, gynecol...
A Comparative Study of Intubating Condition and Hemodynamic Responses Using Propofol or Thiopentone without Muscle Relaxants
Introduction: Muscle relaxants are frequently used to facilitate endotracheal intubation during the induction of anesthesia. However, the administration of short-acting depolarizing muscle relaxants is associated with po...
Comparision of Fentanyl and Dexmedetomidine when Added to Lignocaine in Intravenous Regional Anesthesia
Background: Introduction-Intravenous regional anesthesia (IVRA) is a simple,reliable and cost effective technique for surgeries involving the distal arm.It has the advantage of speed of onset,rapid recovery, reliability...
Comparison of Intravenous Clonidine and Magnesium Sulfate on Hemodynamic Response during Laparoscopic Surgeries
Background: Both magnesium and clonidine are known to inhibit catecholamine and vasopressin release and attenuate hemodynamic response to peumoperitoneum. This randomized, double blinded, placebo controlled study was des...
Magnesium Sulphate as an Adjuvant to Ropivacaine in Ultrasound Guided Supraclavicular Brachial Plexus Block: A Comparative Prospective Randomized Controlled Study
Background: Ropivacaine has been chosen for supraclavicular brachial plexus blockfor its safety profile. Magnesium Sulphate is used as an adjuvant to local anaesthetics as it is known to potentiate sensory and motor bloc...