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Validation of the Polish Version of the Boston Carpal Tunnel Syndrome Questionnaire

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ClinicalTrials.gov Identifier: NCT03782558
Recruitment Status : Enrolling by invitation
First Posted : December 20, 2018
Last Update Posted : January 24, 2019
Sponsor:
Collaborator:
Centrum Neurologii Klinicznej Krakowska Akademia Neurologii
Information provided by (Responsible Party):
Jakub Antczak, Jagiellonian University

Tracking Information
First Submitted Date December 8, 2018
First Posted Date December 20, 2018
Last Update Posted Date January 24, 2019
Actual Study Start Date January 22, 2019
Estimated Primary Completion Date June 30, 2020   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures
 (submitted: December 19, 2018)
  • Internal Consistency [ Time Frame: Through study completion, an average of six months. ]
    Consistency between two subscales of pBCTQ (Symptom severity scale and Functional status scale) will be evaluated using Cronbach alfa test.
  • Validity [ Time Frame: Through study completion, an average of six months. ]
    Validity will be tested by calculating the correlation of the subscore of each of two parts of the questionnaire with the electrophysiologic, six-grade severity level according to Padua et al. (1997).
  • Reactivity: Correlation between changes in pBCTQ and electrophysiologic severity of CTS [ Time Frame: Before treatment and then three months after surgical treatment of CTS ]
    The reactivity will be evaluated as correlation between change in electrophysiologic severity level of CTS and changes in both pBCTQ subscales after treatment.
Original Primary Outcome Measures Same as current
Change History Complete list of historical versions of study NCT03782558 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures Not Provided
Original Secondary Outcome Measures Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title Validation of the Polish Version of the Boston Carpal Tunnel Syndrome Questionnaire
Official Title Validation of the Polish Version of the Boston Carpal Tunnel Syndrome Questionnaire
Brief Summary Carpal tunnel syndrome is the most common compression neuropathy. The compression of the median nerve occurs in the carpal tunnel and results in pain and other unpleasant sensations in hand and wrist. In more advanced stage, weakness and wasting of the thenar and other muscles innervated by median nerve occurs, which may lead to permanent impairment of manual performance. The Boston carpal tunnel questionnaire (BCTQ) is one of the most commonly used tools for monitoring of the disease progression and of the effect of therapy. Originally created in English, it has been translated into many languages and subsequently validated. Recently the Polish version has been created and the purpose of this study is to validate it.
Detailed Description

Carpal tunnel syndrome (CTS) is the most common compression neuropathy. The compression of the median nerve occurs in the carpal tunnel and results in pain and other unpleasant sensations in hand and wrist. In more advanced stage, weakness and wasting of the thenar and other muscles innervated by median nerve occurs, which may lead to permanent impairment of manual performance. The Boston carpal tunnel questionnaire (BCTQ) (Levine et al. 1993) is one of the most commonly used tools for monitoring of the disease progression and of the effect of therapy. It is a self administered questionnaire, which consists of two subscales, the Symptom severity scale and the Functional status scale. In the first one, the severity of particular symptoms is rated between none or never to very severe or continuous where appropriate. In the second one, the difficulties in performing several typical daily tasks, requiring manual activity is rated between "no difficulty" to "cannot perform activity at all due to hands and wrists symptoms". Originally created in English, it has been translated into many languages and subsequently validated. Recently the Polish version has been created (Polish version of the Boston Carpal Tunnel Questionnaire - pBCTQ) and the purpose of this study is to validate it. The translation from English to Polish has been independently made by two health professionals, native Polish speakers with good acquired knowledge of English. Next, both Polish versions were independently backward-translated to English, by two native English speakers with good acquired knowledge of Polish. Finally, all translators met together and all translations were presented to everyone of them. Possible mistakes in translations from original version into Polish, which might led to discrepancies between backwardly translated versions (from Polish to English) and the original version were discussed and the final version was created. The first step of the study on validation of the Polish version will be the pre-testing. In this step, pBCTQ will be administered to small sample of patients (ten in this study) and the investigators will interview in detail how these participants understand each question of the questionnaire. If pre-testing reveals that patients may understand any question differently from its meaning in the original version, final adjustments will be discussed among the translators and possibly introduced.

The final pBCTQ will be administered before and after surgical treatment to the convenience group of 120 patients with electrodiagnostically confirmed CTS. Moreover, 30 randomly selected patients will be asked to fill out pBCTQ additionally, two weeks after first administration but before surgical treatment. Data from this subgroup will serve to assess the test-retest reliability. pBCTQ will be tested also regarding its consistency, validity and reactivity.

Study Type Observational
Study Design Observational Model: Case-Control
Time Perspective: Prospective
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Non-Probability Sample
Study Population Participants will be recruited from the patients referred to Krakowska Akademia Neurologii Centrum Neurologii Klinicznej for electrohysiologic verification of their initial, clinical diagnosis of CTS. After the electrophysiology confirms the CTS, the patient will be asked if she/he would like to take part in the study.
Condition Carpal Tunnel Syndrome
Intervention Procedure: Surgical transection of transverse ligament
Standard therapy for CTS. An incision is made at the base of the palm of the hand. Then the transverse ligament is cut, which releases the compression of the median nerve and improves the symptoms.
Other Name: Surgical transection of flexor retinaculum
Study Groups/Cohorts Patients with CTS
Surgical transection of transverse ligament
Intervention: Procedure: Surgical transection of transverse ligament
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Enrolling by invitation
Estimated Enrollment
 (submitted: December 19, 2018)
120
Original Estimated Enrollment Same as current
Estimated Study Completion Date November 15, 2020
Estimated Primary Completion Date June 30, 2020   (Final data collection date for primary outcome measure)
Eligibility Criteria

Inclusion Criteria:

  • Presence of at least one symptom within hand and / or wrist, from the following: paresthesias, sensory loss, tingling, burning sensation, impression of swelling.
  • Electrophysiologic confirmation of CTS, which will base on the abnormal latency difference in sensory or motor conduction between median and ulnar nerve or on sensory conduction slowing in median nerve, or on the prolongation of distal motor latency of the median nerve.

(bilateral CTS will be included. pBCTQ will be filled out separately for each hand and the outcomes wil be measured separately for each hand).

Exclusion Criteria:

  • Clinical signs or symptoms and /or electrophysiologic results indicative of more generalized peripheral neuropathy.
  • Presence of conditions, which may lead to the development of peripheral neuropathy such as diabetes, renal insufficiency, hypothyroidism or amyloidosis.
  • Presence of conditions, which may clinically resemble CTS, such as cervical radiculopathy or myelopathy or thoracic outlet syndrome
Sex/Gender
Sexes Eligible for Study: All
Ages 18 Years to 85 Years   (Adult, Older Adult)
Accepts Healthy Volunteers No
Contacts Contact information is only displayed when the study is recruiting subjects
Listed Location Countries Poland
Removed Location Countries  
 
Administrative Information
NCT Number NCT03782558
Other Study ID Numbers JagiellonianU60
Has Data Monitoring Committee No
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement
Plan to Share IPD: Undecided
Responsible Party Jakub Antczak, Jagiellonian University
Study Sponsor Jakub Antczak
Collaborators Centrum Neurologii Klinicznej Krakowska Akademia Neurologii
Investigators
Principal Investigator: Jakub M Antczak, MD Jagiellonian University Medical College, Department of Neurology
PRS Account Jagiellonian University
Verification Date January 2019