Vienna Vascular Access Studied on Exchange of Dialysis Catheters for Shunts Where Feasible

Study Overview
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Brief Summary
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We will conduct a cross-section analysis regarding patients with catheter-based vascular Access (VA) in Vienna. Collected data will include demographic and clinical information such as age, gender, co-morbidities and imaging data from sonography and computer tomography. Patients of interest will be assessed through a standardized clinician-executed questionnaire aimed at investigating their medical history regarding their VA. Patients will be evaluated for the feasibility of an arteriovenous VA. Patients will receive standard of care ultrasound-based arterial and venous mapping.

Detailed Description
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We will conduct a cross-section analysis regarding patients with catheter-based vascular Access (VA) in Vienna. Collected data will include demographic and clinical information such as age, gender, co-morbidities and imaging data from sonography and computer tomography. Patients of interest will be assessed through a standardized clinician-executed questionnaire aimed at investigating their medical history regarding their VA. Patients will be evaluated for the feasibility of an arteriovenous VA. Patients will receive standard of care ultrasound-based arterial and venous mapping. Study Rationale The rate of dialysis via catheter systems is around 40% in Vienna whereas in neighboring Germany this rate is historically below 15% according to the latest update of the Dialysis Outcomes and Practice Patterns Study. Therefore, possibly up to 20% of the patients receiving chronic dialysis in Vienna could be eligible for an arteriovenous VA. In absolute numbers we expect up to 400 patients. By means of Vienna ACTS NOW the current situation will be meticulously assessed with the aim to improve the provision of medical care for dialysis patients in Vienna by exchanging catheters for arteriovenous VAs (where feasible and desired). The collected data will serve as the basis of a future prospective interventional study.

Official Title
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Vienna Vascular Access Studied on Exchange of Dialysis Catheters for Shunts Where Feasible

Conditions
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End Stage Renal Failure on Dialysis

Intervention / Treatment
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* Other: Catheter based Dialysis


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age of 18 and above Catheter-based dialysis as of 01.11.2022 Exclusion Criteria: • Age lower than 18

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| catheter based dialysis<br>All patients receiving catheter based dialysis in Vienna as of November 2022 | Other: Catheter based Dialysis<br>* We will conduct a cross-section analysis regarding patients with catheter-based VA in Vienna.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Arteriovenous VA | After a standard-of-care vascular mapping we will note the number of patients receiving catheter based dialysis who would be eligible for arteriovenous dialysis access. | December 2022-May 2023 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Reasons for catheter based dialysis | We use a standardized questionnaire to assess the vascular access (VA) history of patients and why they are receiving catheter based dialysis. | December 2022-May 2023 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Haemodialysis, Dialysis