Three-dimensional Craniofacial Phenotyping of Patients With Difficult Airway

Summary

The purpose of this study is to identify differences in craniofacial morphology and tongue size between patients who have a history of difficult airway management and a control group of patients who had an uneventful airway management during induction of general anesthesia. In this study the investigators want to validate the hypothesis that there are craniofacial phenotypic differences between patients who have a history of difficult airway management and a control group of patients who have had an uneventful airway management during the induction of general anesthesia.

Conditions

• Failed or Difficult Intubation

Interventions

PROCEDURE

3D Laser Scanning of the Head

Five scans will be collected from different angles, each scan taking approximately 3 seconds. Each scan will consist of a thin beam of light flashing of your head.

PROCEDURE

Measurements and Digital Photo's of the head, neck and Mouth

Prior to the photographs, certain bone and soft tissue areas such as angle of the jaw, neck and chin will be gently touched and marked with self-adhesive paper stickers. Using the self-adhesive paper stickers and a measuring tape, we obtain measurements of your head and neck. You will be also asked to open your mouth and a digital photograph of the back of the mouth will be taken, as well as, pictures of the front and side of the head and neck.

PROCEDURE

Ultrasound Exam of the Tongue

The ultrasound study of the tongue will be performed after the series of laser scans. You will be examined in the sitting position. A small,handheld, curved ultrasound instrument will be placed under the chin to take images of the tongue. This exam should take less than a minute

PROCEDURE

3D Laser Scanning of the Head

Five scans will be collected from different angles, each scan taking approximately 3 seconds. Each scan will consist of a thin beam of light flashing of your head.

PROCEDURE

Measurements and Digital Photo's of the head, neck and Mouth

Prior to the photographs, certain bone and soft tissue areas such as angle of the jaw, neck and chin will be gently touched and marked with self-adhesive paper stickers. Using the self-adhesive paper stickers and a measuring tape, we obtain measurements of your head and neck.Digital Photographs of your Mouth - You will be also asked to open your mouth and a digital photograph of the back of the mouth will be taken, as well as, pictures of the front and side of the head and neck.

PROCEDURE

Ultrasound Exam of the Tongue

The ultrasound study of the tongue will be performed after the series of laser scans. You will be examined in the sitting position. A small,handheld, curved ultrasound instrument will be placed under the chin to take images of the tongue. This exam should take less than a minute.

Sponsors & Collaborators

• University of Rochester

  lead OTHER

Principal Investigators

• Jacek Wojtczak, MD · University of Rochester

Study Design

Allocation

NON_RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

70 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2010-07-31

Primary Completion

2012-10-31

Completion

2012-10-31

Countries

• United States

Study Locations