Study to Enhance Understanding of Stent-Associated Symptoms: Rationale and Study Design.

Journal Article (Journal Article)

Background: Ureteral stents are commonly employed after ureteroscopy to treat urinary stone disease, but the devices impose a substantial burden of stent-associated symptoms (SAS), including pain and urinary side effects. The NIDDK (National Institute of Diabetes and Digestive and Kidney Diseases) Urinary Stone Disease Research Network sought to develop greater understanding of SAS causes and severity among individuals treated ureteroscopically for ureteral or renal stones. Materials and Methods: We designed a prospective, observational cohort study comprising adolescents and adults undergoing ureteroscopic intervention for ureteral or renal stones. Participants will undergo detailed symptom assessment using validated questionnaires, a psychosocial assessment, and detailed collection of clinical and operative data. Quantitative sensory testing will be utilized to assess pain sensitization. In addition, a small cohort (∼40 individuals) will participate in semi-structured interviews to develop more granular information regarding their stent symptoms and experience. Biospecimens (blood and urine) will be collected for future research. Results: The Study to Enhance Understanding of sTent-associated Symptoms (STENTS) enrolled its first participant in March 2019 and completed nested qualitative cohort follow-up in August 2019. After a planned pause, enrollment for the main study cohort resumed in September 2019 and is expected to be completed in 2021. Conclusion: STENTS is expected to provide important insights into the mechanisms and risk factors for severe ureteral SAS after ureteroscopy. These insights will generate future investigations to mitigate the burden of SAS among individuals with urinary stone disease.

Full Text

Duke Authors

Cited Authors

  • Scales, CD; Lai, HH; Desai, AC; Antonelli, JA; Maalouf, NM; Tasian, GE; Reese, PP; Curatolo, M; Weinfurt, K; Al-Khalidi, HR; Wessells, H; Kirkali, Z; Harper, JD

Published Date

  • June 2021

Published In

Volume / Issue

  • 35 / 6

Start / End Page

  • 761 - 768

PubMed ID

  • 33081503

Pubmed Central ID

  • PMC8252909

Electronic International Standard Serial Number (EISSN)

  • 1557-900X

Digital Object Identifier (DOI)

  • 10.1089/end.2020.0776


  • eng

Conference Location

  • United States