Use of Laser Speckle to Study Post Occlusive Reactive Hyperhemia in Healthy Subjects (SpeckleShake)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01169974
Recruitment Status : Completed
First Posted : July 26, 2010
Last Update Posted : November 1, 2017
Information provided by (Responsible Party):
University Hospital, Angers

Brief Summary:
The investigators aim to test the hypothesis that Laser speckle contrast imaging allows for the measurement of cutaneous blood flow following various durations of tourniquet ischemia.

Condition or disease Intervention/treatment
Microcirculation Other: tourniquet ischemia

Detailed Description:
Ischemia and post occlusive reactive hyperemia in the skin is tested in healthy normal subjects for tourniquet ischemias of 1, 2 & 3 minutes at rest.

Study Type : Observational
Actual Enrollment : 41 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Evaluation Chez Des Sujets Volontaires Sains de l'ischémie-reperfusion cutanée
Actual Study Start Date : February 1, 2011
Actual Primary Completion Date : September 2012
Actual Study Completion Date : December 4, 2012

Group/Cohort Intervention/treatment
healthy volunteers Other: tourniquet ischemia
Recording of cutaneous blood flow on the forearm at rest before and following tourniquet ischemias of 1 , 2 & 3 minutes
Other Names:
  • Laser doppler flowmetry
  • Transcutaneous oxygen pressure
  • Near infra-red spectrometry
  • Plethysmography

Primary Outcome Measures :
  1. Laser speckle [ Time Frame: with 2 minutes of ischemia ]
    Peak value of laser speckle signal

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
healthy volunteers

Inclusion Criteria:

  • Healthy volunteers
  • Affiliation to the French health system

Exclusion Criteria:

  • Any disease or chronic treatment

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01169974

University hospital
Angers, France
Sponsors and Collaborators
University Hospital, Angers
Principal Investigator: Guillaume Mahe University Hospital in Angers

Responsible Party: University Hospital, Angers Identifier: NCT01169974     History of Changes
Other Study ID Numbers: CHU P 2010-18
First Posted: July 26, 2010    Key Record Dates
Last Update Posted: November 1, 2017
Last Verified: October 2017

Keywords provided by University Hospital, Angers:
laser flowmetry