Effectiveness and Validity of Preoperative Ultrasonographic Airway Assessment and Clinical Screening Tests to Predict Difficult Laryngoscopy: A Prospective, Observational Study

Background: The anticipation of a challenging airway can be demanding in emergency care settings. Due to the patient’s clinical condition, executing pre-intubation screening tests during management an situation sometimes troublesome. Ultrasonographic assessment may become helpful tool, but no specific sonographic measurements precisely visualize prospect meeting difficult airway. Therefore, present study aimed verdict some correlation between preoperative parameters and Cormack-Lehane (CL) grading at laryngoscopic view patients undergoing general anesthesia with endotracheal intubation. Methods: This observational was conducted on 150 elective surgery subjects anesthesia. clinician pre-anesthetic clinic performed ultrasonographic assessments predict intubation correlated CL grade viewed laryngoscopy operative room assessed were sensitivity, specificity, positive predictive value (PPV), negative (NPV). Results: In this study, incidence 13.3%. Mallampatti Grading (MPG) showed maximum receiver operating characteristic (ROC) area under curve (AUC) among predictors, 86.7% sensitivity. At same time, skin-to-hyoid distance has ROC parameters, skin-to-thyroid isthmus utmost sensitivity laryngoscopy. Conclusions: Among MPG like isthmus, are favorable predictors