Related Experiment Video
Updated: Jun 5, 2026

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
Published on: June 2, 2022
Sodium thiosulfate-based treatment in calcific uremic arteriolopathy: a consecutive case series
A R Sood1, L D Wazny, C B Raymond
1University of Manitoba, Winnipeg, Manitoba, Canada. msood@sbgh.mb.ca
Insights
Sodium thiosulfate (STS) showed promise for treating calcific uremic arteriolopathy (CUA) in a small patient group. While four patients responded to STS treatment for CUA, three out of six patients died within one year.
Area of Science:
- Nephrology
- Dermatology
- Vascular Medicine
Background:
- Calcific uremic arteriolopathy (CUA) is a rare, high-mortality complication in end-stage renal disease patients.
- Sodium thiosulfate (STS) has shown potential benefits in case reports for CUA treatment.
- This study evaluates STS response in CUA patients with a one-year follow-up.
Purpose of the Study:
- To assess the efficacy of a sodium thiosulfate (STS)-based treatment for calcific uremic arteriolopathy (CUA).
- To evaluate patient response to STS over a one-year period.
- To identify factors influencing STS treatment outcomes in CUA.
Main Methods:
- Retrospective case series of 6 consecutive CUA patients treated with STS (2006-2008).
- STS responders defined by improvement in pain, wound size, or imaging.
- Collected data on mortality, STS dosage, duration, adverse events, and cost.
Main Results:
- Four out of six patients were classified as STS responders.
- Two surviving responders showed improvement in all parameters within 4-6 weeks.
- Mortality rate was 50% (3 out of 6 patients) within one year.
Conclusions:
- An STS-based approach led to a response in 4 CUA patients, but overall one-year mortality remained high (50%).
- Further prospective studies are necessary to differentiate STS responders from non-responders.
- The findings highlight the need for more research into optimizing CUA treatment strategies.
Background:
Calcific uremic arteriolopathy (CUA) is a rare complication in end stage renal disease with high mortality. Numerous case reports and one case series of 3 patients report the benefit of sodium thiosulfate (STS) for treatment of CUA. The purpose of this evaluation was to examine the response to a STS-based treatment approach in patients with CUA with 1 year follow up.
Methods:
A retrospective case series of 6 consecutive patients from Manitoba, Canada who met predefined diagnostic criteria for CUA and received STS between 2006 and 2008 were included. STS responders were defined as improvement in at least one of the following three parameters: pain severity, wound size and diagnostic imaging/radiography. Mortality, STS dose, duration, adverse events and cost were also collected.
Results:
Four patients were classified as responders. The 2 responders who survived at 1 year of follow-up demonstrated an improvement in all 3 parameters examined including an improvement in their follow-up diagnostic imaging results within the first 4 - 6 weeks of STS treatment. At 1 year of follow-up, 3 patients died.
Conclusion:
Using an STS-based multifaceted treatment approach for CUA, 4 patients responded but 3 of 6 patients died within 1 year. Further larger prospective studies are needed to delineate STS responders from non-responders.
Related Concept Videos
Urinary Tract Calculi III: Medical Management
Urinary Tract Calculi IV: Nutrition Therapy and Prevention
Urinary Tract Calculi VI: Surgical Management
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
Urinary Tract Calculi V: Nursing Management
Continuous Renal Replacement Therapy