Comparison of Modified Mallampati Classification With M-TAC in Difficult Airway

NCT02705794 | Completed DMC

• 1 other identifier: 124-IEC/01/13
• Study Type: observational
• Target: 200
• Locations: 0 countries
• Sites: N/A

Brief Summary

The study title "Clinical trial of comparative evaluation of the Modified Mallampati Score and Modified Mallampati Score along with Thyromental distance, Anatomical abnormality, and Cervical mobility (M-TAC) in Predicting Difficult Airway " was undertaken to evaluate prediction of difficult airway by comparing preoperative airway evaluation tests. Mallampati classification is the most used screening test for detection of difficult intubation it is a classification of oropharyngeal view. Other tests include sternomental distance, thyromental distance, Wilson risk sum score, upper lip bite test, protrusion of mandible, tooth morphology, head extension, mouth opening, body mass index, 3-3-2 rule and ultrasonography of neck soft tissue. We studied 200 adult ASA I \& II patients of either sex, aged between 18-60 yrs undergoing elective surgery receiving general anesthesia. Modified mallampati classification had four grades \& each grade was given a score, similarly thyromental distance (TMD), anatomical abnormality (AA) \& cervical mobility (CM) was classified into three grades \& each grade was given a score. For M-TAC individual scores were added.

Conditions

Airway Management

Keywords

intubation, laryngoscopy

Outcome Measures

Primary Outcomes (1)

• Difficulty of intubation

  Difficulty of intubation is assessed by modified Cormack and Lehane grading. Modified Cormack and Lehane and grading consists of 4 grades. Grade 3 and 4 is considered as difficulty intubation.

  10 minutes

Eligibility Criteria

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

Study Population

Patient admitted for various surgeries requiring general anesthesia with tracheal intubation in a tertiary care teaching institute

You may qualify if:

• Adult patients aged 18-60 years.
• American Society of Anesthesiologists (ASA) I or II, scheduled for elective surgeries under general anaesthesia requiring endotracheal intubation

You may not qualify if:

• \- Patient refusal
• ASA grade III and IV
• Cervical spine disorder
• Obstructive airway tumor
• Edentulous patients /Irregular dentition
• past history of difficult laryngoscopy and intubation.
• trauma to the airways or to the cranial, cervical, and facial regions
• history of previous surgery, burns to airways \& adjacent structures
• Mouth opening\<3 cm
• Age \<18 years \& \> 60 years

Sponsors & Collaborators

• Government Medical College, Haldwani: lead

Related Publications (2)

• Ambesh SP, Singh N, Rao PB, Gupta D, Singh PK, Singh U. A combination of the modified Mallampati score, thyromental distance, anatomical abnormality, and cervical mobility (M-TAC) predicts difficult laryngoscopy better than Mallampati classification. Acta Anaesthesiol Taiwan. 2013 Jun;51(2):58-62. doi: 10.1016/j.aat.2013.06.005. Epub 2013 Jul 21.

  PMID: 23968655 BACKGROUND

• Khan ZH, Mohammadi M, Rasouli MR, Farrokhnia F, Khan RH. The diagnostic value of the upper lip bite test combined with sternomental distance, thyromental distance, and interincisor distance for prediction of easy laryngoscopy and intubation: a prospective study. Anesth Analg. 2009 Sep;109(3):822-4. doi: 10.1213/ane.0b013e3181af7f0d.

  PMID: 19690252 BACKGROUND

Study Design

• Study Type: observational
• Observational Model: CASE CROSSOVER
• Time Perspective: PROSPECTIVE
• Target Duration: 8 Months
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: February 11, 2016
• First Posted: March 11, 2016
• Study Start: June 1, 2015
• Primary Completion: January 1, 2016
• Study Completion: January 1, 2016
• Last Updated: March 15, 2016

Record last verified: 2016-03

Data Sharing

• IPD Sharing: Will share