Validation of the VascuQoL-6 Questionnaire to Assess ePROM After Revascularization for Lower Limb Peripheral Arterial Disease in German-speaking Part of Switzerland (VascuQol6ValCH)

March 29, 2022 updated by: Andrej Isaak, Kantonsspital Aarau

Validation of Electronic Version of the VascuQoL-6 Questionnaire to Assess Patient Related Outcome Measures (ePROM) After Revascularization for Lower Limb Peripheral Arterial Disease in German-speaking Part of Switzerland

Two hundred patients evaluated to undergo revascularization (elective/emergent, surgical/interventional) for lower limb PAD at the cantonal hospital of Aarau, Switzerland, will, after consenting to participate in the study, be asked to fill up both SF-36 and VascuQol-6 questionnaires while sitting in a waiting room before the procedure and during the 30 days and 1-year routine follow up. An electronic version of the questionnaires will be administered on a tablet. The primary goal is to validate the clinical use of the German electronic version of the VascuQol-6 questionnaire to assess patient-related outcomes of the performed treatment by patients with PAD.

Study Overview

Detailed Description

Lower extremity peripheral artery disease is a chronic illness that has a significant effect on the quality of life of the patients in short- as well as long-term.

Generic Instruments, such as widely used Medical Outcomes Study Short Form 36 questionnaire (SF-36) might be too insensitive to specific problems and associated comorbidities of vascular surgery patients as well as too complicated for routine use in a busy clinical setting. Therefore, the Vascular Quality of life questionnaire (VascuQoL-25) has been developed for use in the UK in 2001 at the Vascular Surgical Unit of King's College Hospital in London. To further simplify the use of the questionnaire, a lighter Version, that reduced the amount of asked questions from 25 to 6 (VascQuol-6) has been presented and found to be both valid and relevant. VascuQoL- 6 is a disease-specific questionnaire, developed to assess health-related quality of life (HRQoL) in patients with peripheral artery disease. It has been translated to 8 languages including German, and successfully validated for the use to assess in patients with peripheral artery disease in Sweden, Netherlands, Norway, Brazil and Poland.

In opinion of the investigators, a unified means to obtain relevant data concerning patient-related outcomes following treatment (endovascular or surgical) for PAD as part of existing aftercare schemes currently lacks in Switzerland. A simple tool such as VascuQoL-6 would allow collecting and objectively assessing, as well as comparing this kind of information after such procedures.

The main objective of the project is to validate the electronic version of the VascuQoL-6 for assessment of patient-related outcomes after a revascularization procedure (either surgical or interventional) for peripheral artery disease in the German-speaking part of Switzerland preoperatively, during the routine 30 days and a one-year follow-up.

Furthermore, upon the successful validation of the electronic VascuQoL-6, the investigators seek to implement the use of this easy to use, straight-forward tool in the follow-up scheme of the Swiss Vascular Registry (SwissVasc).

This project is of Risk A (minimum risk) according to art. 7 (HRO), because the patient-related quality of life will be evaluated after vascular surgery or intervention and will not have an influence on treatment modality.

Hypothesis and primary objective Assessment of quality regarding invasive treatment (endovascular or surgical), outcomes and patients satisfaction becomes a more and more powerful instrument to influence and guide decisions in the Swiss healthcare system. However, no unified means are currently being applied as part of the existing follow-up schema after revascularization for PAD in the German-speaking part of Switzerland. Therefore, the possibility to provide, assess, compare and use the information about short- mid- and long-term patient-related outcomes and improved/decreased disease- related quality of life in the decision-making process is limited.

Validation of a comprehensible and easy-to-use electronic Version of the VascuQoL-6 will allow obtaining such information in patients that underwent vascular/ endovascular surgery in the German-speaking part of Switzerland.

SwissVasc (i.e. Adjumed.net) is a nation-wide database to register vascular interventions and associated outcomes. Registration of individual data in SwissVasc (i.e. 30-day mortality, complication rate) is mandatory in Kanton Zurich and will become mandatory in Kanton Basel- Stadt and Basel-Landschaft in 2020. Moreover, this register will soon be part of the statutes of the Swiss Society of Vascular Surgery to evaluate the quality of training in each institution.

The Evaluation of VascuQoL-6 is part of this ambitious project. The goal is to implement the use of this questionnaire into the SwissVasc registry follow-up schema, to provide a uniformly used tool to collect and investigate the above-said information.

Study Type

Observational

Enrollment (Anticipated)

200

Contacts and Locations

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

Study Contact

Study Locations

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

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Volunteer native German-speakers with no cognitive impairment, by whom an elective or emergent revascularisation (endovascular or surgical) for lower limb peripheral artery disease has been indicated.

Description

Inclusion Criteria:

  • confirmed PAD
  • elective or emergent revascularization indicated (surgery/intervention)
  • native German speakers - no cognitive impairment

Exclusion Criteria:

  • not fulfilling any of the inclusion criteria
  • patients refusing to participate

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Elective
Patients undergoing elective revascularisation (endovascular or surgical) for PAD.

Patients will be asked to fill up both VascuQoL-6 and SF-36 questionnaires before the procedure, as well at 30-days and 1-year follow-up visit while they are sitting in the waiting room. To assess reliability and systematic shift and variation between the two assessments, elective patients will be asked to fill the VascuQoL-6 again at the admission to hospital, as well as 1 week after the 30-days follow-up vie an e-mail link for a test-retest assessment. All questionnaires will be administered on a tablet.

During the 30-days follow-up 4 extra questions concerning patient related outcomes and occurrence of major complication will be added to the VascuQoL-6 questionnaire in the App. During every visit (preoperatively, at 30-days and 1-year follow-up) the stage of the lower limb peripheral artery disease will be noted according to the WIfI-Classification.

Emergent
Patients undergoing emergent revascularisation (endovascular or surgical) for PAD.

Patients will be asked to fill up both VascuQoL-6 and SF-36 questionnaires before the procedure, as well at 30-days and 1-year follow-up visit while they are sitting in the waiting room. All questionnaires will be administered on a tablet.

During the 30-days follow-up 4 extra questions concerning patient related outcomes and occurrence of major complication will be added to the VascuQoL-6 questionnaire in the App. During every visit (preoperatively, at 30-days and 1-year follow-up) the stage of the lower limb peripheral artery disease will be noted according to the WIfI-Classification.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
VascuQoL-6 Score
Time Frame: baseline
Disease specific Questionnaire for peripheral arterial Disease, consists of 6 questions
baseline
VascuQoL-6 Score
Time Frame: 1 Month after revascularisation
Disease specific Questionnaire for peripheral arterial Disease, consists of 6 questions
1 Month after revascularisation
VascuQoL-6 Score
Time Frame: 1 year after revascularisation
Disease specific Questionnaire for peripheral arterial Disease, consists of 6 questions
1 year after revascularisation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
WIfl classification
Time Frame: baseline
Wound, Ischemia and foot Infection Classification system - used to predict 1-year amputation risk and potential benefit of revascularization. The wound, limb Ischemia and foot infection are stratified and graded, thus creating a score.
baseline
WIfl classification
Time Frame: 1 month after revascularisation
Wound, Ischemia and foot Infection Classification system - used to predict 1-year amputation risk and potential benefit of revascularization. The wound, limb Ischemia and foot infection are stratified and graded, thus creating a score.
1 month after revascularisation
WIfl classification
Time Frame: 1 year after revascularisation
Wound, Ischemia and foot Infection Classification system - used to predict 1-year amputation risk and potential benefit of revascularization. The wound, limb Ischemia and foot infection are stratified and graded, thus creating a score.
1 year after revascularisation
Complication rates
Time Frame: 1 year
Occurence of myocardial infarction, stroke or death
1 year
Ankle-brachial indices
Time Frame: baseline
Ankle pressure to brachial pressure index, used to evaluate PAD
baseline
Ankle-brachial indices
Time Frame: 1 month after revascularisation
Ankle pressure to brachial pressure index, used to evaluate PAD
1 month after revascularisation
Ankle-brachial indices
Time Frame: 1 year after revascularisation
Ankle pressure to brachial pressure index, used to evaluate PAD
1 year after revascularisation
Puls-plethysmography
Time Frame: baseline
Plethysmography is routine examination for PAD, allows for evaluation of extremity perfusion at different levels
baseline
Puls-plethysmography
Time Frame: 1 month after revascularisation
Plethysmography is routine examination for PAD, allows for evaluation of extremity perfusion at different levels
1 month after revascularisation
Puls-plethysmography
Time Frame: 1 year after revascularisation
Plethysmography is routine examination for PAD, allows for evaluation of extremity perfusion at different levels
1 year after revascularisation
SF-36 Score
Time Frame: baseline
Short Form 36 Questionnaire - acknowledged tool for assesment of health related quality of life. Not disease specific, used as gold standard to evaluate the VascuQol-6 Questionnaire
baseline
SF-36 Score
Time Frame: 1 month after revascularisation
Short Form 36 Questionnaire - acknowledged tool for assesment of health related quality of life. Not disease specific, used as gold standard to evaluate the VascuQol-6 Questionnaire
1 month after revascularisation
SF-36 Score
Time Frame: 1 year after revascularisation
Short Form 36 Questionnaire - acknowledged tool for assesment of health related quality of life. Not disease specific, used as gold standard to evaluate the VascuQol-6 Questionnaire
1 year after revascularisation

Collaborators and Investigators

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

Investigators

  • Study Director: Andrej Isaak, Dr. med., Kantonsspital Aarau

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

March 1, 2021

Primary Completion (Anticipated)

March 31, 2023

Study Completion (Anticipated)

December 31, 2023

Study Registration Dates

First Submitted

December 28, 2020

First Submitted That Met QC Criteria

January 12, 2021

First Posted (Actual)

January 14, 2021

Study Record Updates

Last Update Posted (Actual)

March 31, 2022

Last Update Submitted That Met QC Criteria

March 29, 2022

Last Verified

March 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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