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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ISRCTN
Last refreshed on: 17 October 2016
Main ID:  ISRCTN15015327
Date of registration: 24/09/2015
Prospective Registration: No
Primary sponsor: University of Würzburg
Public title: Increased brain activation after painful stimulation of the forearm muscles in patients with fibromyalgia syndrome
Scientific title: Increased cortical activation upon painful stimulation in fibromyalgia syndrome
Date of first enrolment: 01/01/2007
Target sample size: 25
Recruitment status: Completed
URL:  http://isrctn.com/ISRCTN15015327
Study type:  Observational
Study design:  Non-interventional single-center study observational study. (Other)  
Phase: 
Countries of recruitment
Germany
Contacts
Name: Nurcan     Üçeyler
Address:  Department of Neurology University of Würzburg Josef-Schneider-Str. 11 97080 Würzburg Germany
Telephone: +49 931 201 24617
Email: ueceyler_n@ukw.de
Affiliation: 
Name:    
Address: 
Telephone:
Email:
Affiliation: 
Key inclusion & exclusion criteria
Inclusion criteria: 1. Aged 18 years or over
2. Patients with:
2.1. Fibromyalgia syndrome
2.2. Unipolar major depression (MD) without pain
2.3.Healthy controls

Exclusion criteria: 1. Other possible differential diagnoses (e.g. rheumatoid arthritis; post-surgery pain)
2. Current or prior cerebral disease (e.g. stroke, cerebral hemorrhage, head trauma)
3. Any clinically relevant psychiatric disorder (examined by systematic psychiatric interview)


Age minimum:
Age maximum:
Gender: Both
Health Condition(s) or Problem(s) studied
Fibromyalgia
Musculoskeletal Diseases
Fibromyalgia
Intervention(s)
Twenty five patients with fibromyalgia syndrome, ten patients with unipolar major depression (MD) without pain, and thirty five healthy controls are recruited for the study. Patients undergo functional near-infrared spectroscopy (fNIRS) whilst being subjected to two stimulations:

1. Painful pressure stimulation at the dorsal forearm
2. Verbal fluency test (VFT) to asses cognitive function using memory recall

All patients underwent neurological examination and all subjects were investigated with questionnaires (pain, depression, FMS, empathy).
Primary Outcome(s)
Muscular pressure pain: fNIRS measurements were performed during the application of painful pressure on the muscle bulk of the finger extensors of the right side using a calibrated algesiometer. The stimulation conditions were as follows: pressure application for two seconds; pause for ten seconds between two stimuli; total of 40 stimuli, i.e. measurement at baseline and up to 8 minutes after first stimulation.
Secondary Outcome(s)
Verbal fluency test (VFT): The VFT paradigm consisted of three conditions. Subjects were asked to produce as many different nouns as possible a) starting with a certain letter (A, F, and S), or b) belonging to the same category (animals, fruits, and flowers) or c) to name the days of the week as a control condition. Each condition lasted for 30 sec followed by 30 sec rest. Subjects worked on nine blocks in total (3 x letters, 3 x categories, 3 x week days), i.e. measurement at baseline and up to 9 minutes after start.
Secondary ID(s)
N/A
Source(s) of Monetary Support
University of Würzburg (EFIC-Grünenthal Grant and intramural funds)
Secondary Sponsor(s)
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
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