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

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified June 2012 by University Hospital, Angers.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
University Hospital, Angers Identifier:
First received: July 23, 2010
Last updated: June 28, 2012
Last verified: June 2012
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 Intervention
Microcirculation Other: tourniquet ischemia

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Evaluation Chez Des Sujets Volontaires Sains de l'ischémie-reperfusion cutanée

Further study details as provided by University Hospital, Angers:

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

Estimated Enrollment: 30
Study Start Date: July 2010
Estimated Study Completion Date: October 2012
Estimated Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
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

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.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
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
  Contacts and Locations
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Please refer to this study by its identifier: NCT01169974

Contact: guillaume Mahe, MD +33 241363689

University hospital Recruiting
Angers, France
Contact: Guillaume Mahe, MD    +33 241363689      
Sub-Investigator: Pierre Abraham         
Sponsors and Collaborators
University Hospital, Angers
Principal Investigator: Guillaume Mahe University Hospital in Angers
  More Information

Responsible Party: University Hospital, Angers Identifier: NCT01169974     History of Changes
Other Study ID Numbers: CHU P 2010-18
Study First Received: July 23, 2010
Last Updated: June 28, 2012

Keywords provided by University Hospital, Angers:
laser flowmetry
Physiology processed this record on July 21, 2017