N/A Completed 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

Source: ClinicalTrials.gov NCT03053583 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Apr 2025

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

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.

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	—

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

View full record on ClinicalTrials.gov →

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. Informational only — not medical advice.