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Impact of Labor and Delivery on Ultrasound Measured Cricothyroid Membrane Depth and Height

NCT04546087 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2024-03-19

No results posted yet for this study

Summary

The cricothyroid membrane acts as a route through which the upper airway can be accessed to provide oxygen and ventilation to patients. Anesthesiologists need to deliver oxygen and ventilation to patients under general anesthesia, where patients may lose the ability to breath for themselves. Access through this membrane to provide oxygen and ventilation is critical in emergency situations where other traditional means to access the airway (e.g. through endotracheal ventilation, supraglottic airway devices or face mask ventilation) have failed. It is known, from previous studies, that due to the physiological changes that occur in labour, the upper airway of the body undergoes changes that can make accessing the airway through traditional means more difficult, specifically during the period of labor, delivery, and just after delivery. Ultrasound is becoming increasingly popular due to its ability both to identify the cricothyroid membrane and to improve success in accessing the airway through the cricothyroid membrane. What is not known, and has not been studied to date, is specifically how the anatomy (i.e. its height and its depth) specifically changes during the period of labour, delivery and just after delivery.

The aim of this study would be to scan (using ultrasound) pregnant women's necks once at the very start of their labour, and once within 4 hours of delivery of their baby, to identify how the size and depth of the cricothyroid membrane changes. This information would improve the understanding of how to best approach accessing this membrane in laboring pregnant women.

The investigators hypothesize that in labouring third trimester patient, that the depth to the cricothyroid membrane will increase, and there will be no change in the cricothyroid membrane height.

Conditions

  • Airway Complication of Anesthesia

Interventions

DEVICE

Ultrasound

Ultrasound scan of the cricothyroid membrane

Sponsors & Collaborators

  • Samuel Lunenfeld Research Institute, Mount Sinai Hospital

    lead OTHER

Principal Investigators

  • Eric You-Ten, MD · MOUNT SINAI HOSPITAL

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-09-01
Primary Completion
2022-11-02
Completion
2022-11-02

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04546087 on ClinicalTrials.gov