N/A N=96 Randomized Single-blind Other

Vocal Cord Views With the Classical Miller, Wis-Hipple and C-MAC Size 1 Blades in Young Children

Percent of Vocal Cords (Glottic) Opening

Bottom Line

View on ClinicalTrials.gov: NCT03053583 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Apr 2025

Primary outcome: Primary: Percentage of Vocal Cord Opening — 100; 98; 100 percent — p=<0.05

Study Design & Population

Study type: Interventional
Phase: N/A
Interventions: Laryngoscope blade (Device)
Age: Pediatric · 0+ yrs
Sex: All
Sponsor: State University of New York at Buffalo
Primary completion: Sep 2016

Outcome Measures

Outcome	Result	p-value
PRIMARY Percentage of Vocal Cord Opening	100; 98; 100	<0.05 sig
SECONDARY Subjective Ease of Laryngoscopy and Intubation	10; 10; 10	—
SECONDARY Percent of Oxygen Saturation	100; 100; 100	—

Summary

The purpose of this study is to compare straight blades in obtaining best vocal cord view in children. The investigators will compare size 1 Classical Miller, size 1 Wis-Hipple, and size 1 C-MAC straight blades in young children.

Eligibility Criteria

Inclusion Criteria

Children age ≤ 2 years
American Society of Anesthesiologists (ASA) class I-II
Fasting
Scheduled for elective surgery under general anesthesia

Exclusion Criteria

Refusal by parents
Airway surgery
Obstructive sleep apnea
Craniofacial abnormalities
Predicted difficult intubation
Prematurity 1 week after birth
Gastroesophageal reflux disease
Neuromuscular disease

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Data sourced from ClinicalTrials.gov (NCT03053583). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.