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Bronchoscopy and Electric Impedance Tomography (EIT) Pilot Study

NCT01294813 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2011-02-16

No results posted yet for this study

Summary

Electrical Impedance Tomography (EIT)is a technique based on the injection of small currents and voltage measurements using electrodes on the skin surface generating cross-sectional images representing impedance change in a slice of the thorax. It is a radiation free, non-invasive and portable lung imaging technique. Impedance changes in lung ventilation are investigated in mechanically ventilated patients who routinely undergo bronchoscopy in intensive care medicine. Bronchoscopy is performed to suction secretions as well as to analyze the secretions to recognize inflammations and diseases. It is an essential intervention which causes changes in ventilation which remain for 1-2 hours. It is not completely investigated why these changes in ventilation remain for so long time and how they are distributed regionally. Therefore the purpose of this study is to investigate the change in pulmonary regional ventilation in patients who routinely undergo bronchoscopy to possibly generate ideas how to optimize the ventilation after bronchoscopy to optimize the patient´s treatment.

Conditions

  • Electric Impedance Tomography
  • Bronchoscopy
  • Change in Lung Impedance Due to Ventilation
  • Recruitment
  • Improvement the Treatment of the Patient

Interventions

DEVICE

Electrical Impedance Tomography (EIT)

EIT measurements of 1-2 minutes are performed in patients who routinely undergo bronchoscopy (during 1.5 hours) before, directly after and 10, 30, 60 minutes after bronchoscopy. Therefore the rubber belt including 16 integrated electrographic electrodes is placed around the patient´s chest and connected with an EIT device. EIT data are generated by application of a small alternating current of 5mA and 50kHz and are stored and analyzed offline on a personal computer. Pseudonomyzed EIT data are evaluated descriptively.

Sponsors & Collaborators

  • RWTH Aachen University

    lead OTHER

Principal Investigators

  • Stefan Krueger, MD, Assoc. Prof. · University Hospital Aachen, Medical Clinic 1, Section of Pneumology, 52074 Aachen, Nordrhein-Westfalen, Germany

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-01-31
Primary Completion
2011-04-30
Completion
2011-04-30

Countries

  • Germany

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 NCT01294813 on ClinicalTrials.gov