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Ratio of Neck Distances in Extension and In sniffing Position for predicting Difficult Intubation

Ratio of Sternomental Distance in Simple Extension and Sniffing Position as a predictor of Difficult Laryngoscopy and Intubation

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2022/08/044522
Enrollment
205
Registered
2022-08-01
Start date
Unknown
Completion date
Unknown
Last updated
2022-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: 8- Other Procedures

Interventions

None listed

Sponsors

Vardhman Mahavir Medical College and Safdarjung Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Adult patients, 18-65 years old, of either sex with American Society of Anesthesiologists Physical Status(ASA) I to II scheduled for elective surgery under general anesthesia requiring tracheal intubation

Exclusion criteria

Exclusion criteria: Obvious malformation of the neck or face (candidates for awake tracheal intubation),Pregnant patients, Interincisor distance 35kg/m2) � Patients requiring rapid sequence induction

Design outcomes

Primary

MeasureTime frame
To correlate the ratio of Sternomental Distance in simple extension and in sniffing position with laryngoscopic view.Timepoint: not applicable for this study—

Secondary

MeasureTime frame
1. To find correlation of the ratio of Sternomental Distance in simple extension and in sniffing position with the Intubation Difficulty Score (IDS). 2. To determine the optimum threshold value of Sternomental Distance in sniffing position for difficult laryngoscopy and intubation. 3. To find correlation of the ratio of height to Sternomental Distance(SMD) in sniffing position with laryngoscopic view.Timepoint: 1.Sternomental distance in Extension (SMDE): 2.Sternomental distance in Sniffing position(SMDS): 3. Sternomental Distance Ratio (SMDE/SMDS) 4.Intubation time 5.Total insertion time: Laryngoscopy time plus intubation time 6. Intubation Difficultly score—

Countries

India

Contacts

Public ContactDr Amita Gupta

guru gobind singh indraprastha university

amitaduptadr@gmail.com9910382190

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026