MedTrace Logo

Upper Airways in Pregnancy: Evaluation by the Acoustic Reflection Method

NCT01087047 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 50

Last updated 2012-06-12

No results posted yet for this study

Summary

It is well known that airway management can be difficult during pregnancy. Increased risks for difficult intubation in pregnant women have been often reported. Thus, pregnancy is regarded as a period of high anesthesiologic risk.

Generalized weight gain is a well known factor influencing the upper airway in pregnant women. However, the modifications of the airway itself are less well documented.

The acoustic reflection method is based on the analysis of the reflection of a single transient planar wave allowing the analysis of the longitudinal cross-sectional area profile of the examined cavity. It is a noninvasive and harmless method.

The aim of the study is to evaluate by acoustic reflection method the physiological modifications of the upper airways during pregnancy.

Women enrolled in the study will undergo an acoustic recording during the first, second, and third trimester of pregnancy, as well as two days and one month after delivery. Forty pregnant women will be included in this monocentric, prospective, open labelled study.

Moreover, a single acoustic recording will be performed in 10 other pregnant women undergoing an MRI for obstetrical purpose. The estimated caliber of the upper airways by MRI and acoustic method will be compared.

Conditions

  • Pregnancy

Interventions

DEVICE

Acoustic reflection method

An acoustic reflection device gives the longitudinal cross-sectional area profile along airways. It is based on the analysis of a planar acoustic wave propagating in a rigid duct connected to airway.

Sponsors & Collaborators

  • Institut National de la Santé Et de la Recherche Médicale, France

    collaborator OTHER_GOV

  • Club d'Anesthésie-Réanimation Pédiatrique Armand Trousseau

    lead OTHER

Principal Investigators

  • Brigitte FAUROUX, MD, PhD · Assistance Publique - Hôpitaux de Paris

  • Nicolas LEBOULANGER, MD · Assistance Publique - Hôpitaux de Paris

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2010-03-31
Primary Completion
2012-03-31
Completion
2012-03-31

Countries

  • France

Study Locations

More Related Trials

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 NCT01087047 on ClinicalTrials.gov