Comparison of two anatomical landmark techniques for predicting difficult airway in patients undergoing cancer surgeries

Not yet recruiting

Conditions: Medical and Surgical,

Registration Number: CTRI/2023/05/052532

Brief Summary: On the preoperative day, patientâ€™s airway will be assessed, which includes Mallampatti grading, Thyromental Distance, Sternomental Distance, height,weight, neck mobility. Ratio of height to thyromental distance ( RHTMD)and ratio of height to sternomental distance (RHSMD)will be calculated. In the operation theatre, the baseline vitals of the patient like spo2,PR, BP,ECG will be recorded.Then patients will receive premedication with midazolam and Glycopyrrolate followed by preoxygenation with 100% oxygen.Anesthesia will be induced with propofol 1- 2mg/kg and muscle relaxation with vecuronium 0.1mg/kg as done routinely. Intubation will be carried out by an anesthesiologist with more than 5 years experience and who is blinded to the study.The glottis exposure on direct laryngoscopy will be graded as per routine. Intubation will be considered difficult if view on laryngoscopy is Cormack Lehane 3 or 4, >3 attempts at intubation, duration > 10min,or if stylets,bougie, video laryngoscopy or fibreoptic bronchoscope used.The preoperative airway assessment data and findings during intubation will be assessed and correlated to establish the incidence of difficult intubation. The ability of RHTMD and RHSMD to predict difficult airway preoperatively in patients actually found to have difficult laryngoscopy and intubation will also be studied.

Detailed Description: Not available

Recruitment & Eligibility

Status: Not Yet Recruiting

Sex: All

Target Recruitment: 193

Inclusion Criteria

ASA physical status 1,2 undergoing elective oncosugeries under general anaesthesia.

Exclusion Criteria

Restricted neck mobility Major airway abnormalities Tumors or mass in the neck or airway Post burn neck contractures Pregnancy Kyphoscoliosis Obesity(BMI >30).

Study & Design

Study Type: Observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Predicts difficult airway, can avoid intraop unanticipated difficult airway related complications	1 year

Secondary Outcome Measures

Name	Time	Method
Predicts difficult airway	6 months

Trial Locations

Locations (1): Regional Cancer Centre
🇮🇳
Thiruvananthapuram, KERALA, India
Regional Cancer Centre
🇮🇳Thiruvananthapuram, KERALA, India
Dr Deepthi J Prabhu
Principal investigator
9895006045
drdeepthiprabhu@gmail.com