Miller Straight Blade vs Macintosh Blade

NCT02664532 | Completed Results

• 1 other identifier: PR/JHTMH/09242A
• Study Type: interventional
• Target: 150
• Locations: 0 countries
• Sites: N/A

Brief Summary

The purpose of this prospective open labeled randomized study was to compare the "laryngoscopic glottis view" as well as "ease of intubation" between the two blades in routine intubations in non-difficult airways.

Conditions

Intubation; Difficult

Outcome Measures

Primary Outcomes (1)

• Ease of Intubation or Degree of Difficulty With Intubation

  Degree of difficulty with intubation Grade 1 Intubation easy Grade 2 Intubation requiring an increased anterior lifting force/optimal external laryngeal manipulation (OELM)/assistance to pull the right corner of the mouth upwards to augment space Grade 3 Intubation requiring more than one attempt or bougie guided intubation Grade 4 failure to intubate with the assigned laryngoscope

  60 seconds

Secondary Outcomes (3)

• Cormack Lehane Grading

  60 seconds

• Number of Intubation Attempts

  180 seconds

• Total Laryngoscopy Duration in Seconds

  180 seconds

Study Arms (2)

Miller group

EXPERIMENTAL

In Miller group, no 3 Miller blade was used for laryngoscopy by paraglossal technique. While intubating, the endotracheal tube (ETT) was directed underneath the laryngoscope blade without allowing it to go lateral to the blade. The curvature of the ETT automatically brings the tip towards the vocal cords as it was advanced. After successful endotracheal intubation, the ETT was attached to the circuit and anaesthesia continued as per plan.

Other: Miller group

Macintosh group

OTHER

In Macintosh group, the curved blade was introduced to lift the base of the epiglottis to visualize larynx and then trachea intubated conventionally.After successful endotracheal intubation, the ETT was attached to the circuit and anaesthesia continued as per plan.

Other: Macintosh group

Interventions

Miller group OTHER

Miller blade was used for laryngoscopy

Miller group

Macintosh group OTHER

Macintosh blade was used for laryngoscopy

Macintosh group

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• All ASA I \& II grade patients undergoing elective surgery requiring general anesthesia with oral endotracheal intubation

You may not qualify if:

• Patients with anticipated difficult airway
• Cervical spine disorders
• Anesthesia requiring rapid sequence induction

Sponsors & Collaborators

• Tata Main Hospital: lead

Limitations and Caveats

Blinding of laryngoscope to the laryngoscopist was not possible. The study was conducted in predicted non-difficult airways and cannot be extrapolated in difficult airway situations.

Results Point of Contact

• Title: Dr.Deb Sanjay Nag
• Organization: Tata Main Hospital

debsanjay@gmail.com

+91-7763807101

Study Officials

• Bhanu Pratap Swain, DNB

  Tata Main Hospital, Jamshedpur,India

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Specialist

Study Record Dates

• First Submitted: January 10, 2016
• First Posted: January 27, 2016
• Study Start: January 1, 2010
• Primary Completion: December 1, 2010
• Study Completion: December 1, 2010
• Last Updated: March 11, 2016
• Results First Posted: March 11, 2016

Record last verified: 2016-02

Data Sharing

• IPD Sharing: Will not share