Long Term Vital Parameter Monitoring (LAVIMO) (LAVIMO)

November 26, 2013 updated by: RWTH Aachen University

Long Term Vital Parameter Monitoring Pilot Study to Evaluate Measurement Data Via In-ear Sensor in Comparison to Standard Polysomnography in Sleep Laboratory

The purpose of this study is to evaluate the feasibility of non-intrusive 24 hours non-invasive measurements with minimized LAVIMO sensor system. The LAVIMO-system is a photoplethysmographic device for reflective mode measurements of the optical damping upper skin layers inside of the ear canal at two different wave lengths. It consists of the in-ear sensor, the electronics and a PC. Vital signs parameter like heart rate, heart rate variability, breathing and arterial blood oxygenation are monitored in patients with sleep apnoea and compared to measurements of standard polysomnography of these patients during one night in the sleep laboratory.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

In 20 patients who routinely have to undergo a polysomnographic night in sleep laboratory LAVIMO measurements like heart rate, heart rate variability, breathing and arterial blood oxygenation are performed parallel to standard polysomnography measurements and subsequently compared to the data of the standard polysomnography. The LAVIMO sensor system consists of the in- ear sensor, the electronics and a PC; the individually formed sensor is embedded into an ear mould for proper fit inside the ear canal. Inside two LEDs emit light into the adjacent skin at 760 and 905 nm wavelengths. The intensity of the backscattered light is detected by a photo detector. In the electronics, the control signals for the LEDs are provided, as well as the photo detector signal is further processed and A-D converted. The electronics also provide a wireless connection to the PC via bluetooth. Data recording, post processing and displaying are tasks of the PC. The feasibility of non- intrusive 24 hours and non-invasive measurements like heart rate, heart rate variability, breathing and oxygen saturation is proved via this minimized sensor and electronics placed at a suitable place at the body guaranteeing high wearing comfort. This includes a wireless data communication for unrestricted mobility. Subsequently the data are compared to the standard polysomnography data to extract vital signs or for example to recognize possible phases of sleep apnoea. The goal in future refering to preventive medical monitoring will be early detection of risk factors for patient's health and improvement of living conditions.

Study Type

Interventional

Enrollment (Actual)

8

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
    • North Rhine Westphalia
      • Aachen, North Rhine Westphalia, Germany, 52074
        • Neurological Clinic , University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients > 18 years who routinely have to undergo a polysomnography night
  • sleep apnoea patient
  • able to give informed consent

Exclusion Criteria:

  • dementia
  • cochlea implant
  • severe lung diseases
  • allergy against material of the sensor
  • inflammation of the middle ear
  • inflammation of auditory canal
  • occlusion because of cerumen
  • electric implants

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Device: in-ear sensor
Patients who routinely undergo a polysomnography night (1 night) are monitored via in-ear sensor which will be embedded in the auditory canal. During this night vital signs parameters are monitored, processed and subsequently compared to the polysomnography data.
Device: LAVIMO in- ear sensor system
Long term vital signs parameters like heart rate, heart rate variability, breathing and oxygen saturation are measured via in- ear sensor system during 1 polysomnographic night
Other Names:
  • Photoplethysmographic microoptic reflective microsensor

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Extraction of vital signs out of measurement data via individually formed in-ear sensor system in comparison to standard polysomnography data in sleep laboratory
Time Frame: one night
during one polysomnographic night in sleep laboratory the patient will receive the LAVIMO in- ear sensor system and vital parameters like heart rate, heart rate variability, breathing and oxygen saturation will be monitored. Subsequently the data will be processed and compared to the standard polysomnographic data
one night

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

RWTH Aachen University

Investigators

  • Principal Investigator: Johannes Schiefer, MD, Neurological Clinic, University Hospital Aachen

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2012

Primary Completion (Actual)

February 1, 2013

Study Completion (Actual)

February 1, 2013

Study Registration Dates

First Submitted

June 20, 2012

First Submitted That Met QC Criteria

June 20, 2012

First Posted (Estimate)

June 22, 2012

Study Record Updates

Last Update Posted (Estimate)

November 27, 2013

Last Update Submitted That Met QC Criteria

November 26, 2013

Last Verified

November 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CTC-A_10-016
  • EK 231/10 (Other Identifier: Ethics Committee University Hospital Aachen)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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