Sternomental Displacement Test for Predicting Difficult Airway in Obese Patients

NCT04524546 | Completed

• 1 other identifier: Ms-141-2020
• Study Type: observational
• Target: 135
• Locations: 1 country
• Sites: 1

Brief Summary

Difficulties airway significantly contribute to the morbidity and mortality associated with anesthesia. Identifying situations and patients at risk for airway management problems is the key to optimal care and has been the focus of numerous publications. Although controversial, Body Mass Index (BMI) is considered as associated with difficult intubation in both and operating theaters. A modified measurement of SMD is obtained with the head in neutral position (SMD neutral), then the difference between SMD extension and SMD neutral was calculated and it was referred to as sternomental displacement (SMDD). SMDD was proved to be a good objective predictor for difficult laryngoscopy in adult patients, and its predictive ability was increased when combined with other tests as neck circumference (NC). To the best of our knowledge, the validity of the SMDD test was not previously assessed in obese patients.

Conditions

Difficult Airway Intubation

Outcome Measures

Primary Outcomes (1)

• A a cut-off value, sensitivity (Sn), specificity (Sp), positive predictive values (PPV), negative predictive values (NPV) of sternomental displacement in predicting difficult laryngoscopy in obese patient undergoing GA.

  before induction of general anesthesia

Interventions

Sterno-mental displacement test DIAGNOSTIC_TEST

While the patient is in sitting position, (SMD neutral) will be is measured using tape as the distance between upper borders of the manubrium sterni to the mentum with the head in a neutral position. The (SMD extension) will be then measured in the same way with the head extended on the neck. The difference between SMD extension and SMD neutral will be then calculated as sternomental displacement (SMDD).

Eligibility Criteria

• Age: 18 Years - 60 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Patients of either sex, aged between 18-60 years old, ASA physical status II \& III with BMI \> 30 Kg/m2

You may qualify if:

• Patients of either sex, aged between 18-60 years old, ASA physical status II \& III with BMI \> 30 Kg/m2 undergoing elective surgical procedures under general anesthesia using endotracheal intubation by conventional laryngoscopy.

You may not qualify if:

• neuromuscular disorders, craniofacial abnormalities, abnormal dentition, lesions or scares in head and neck limiting the neck mobility, uncooperative, who needed awake intubation and patients who underwent emergency operations

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Anesthesia department - Faculty of medicine- Cairo University

Cairo, Egypt

Location

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor of Anesthesia, SICU & pain management. Kasralainy Faculty of medicine

Study Record Dates

• First Submitted: August 20, 2020
• First Posted: August 24, 2020
• Study Start: September 1, 2020
• Primary Completion: February 20, 2021
• Study Completion: April 30, 2021
• Last Updated: May 18, 2021

Record last verified: 2021-05

Locations

EG (1)