Urolithiasis induced by a "forgotten" ureteral stent (case reports)
DOI: 10.32364/2587-6821-2026-10-4-11
Urolithiasis induced by a "forgotten" ureteral stent (case reports)
I.V. Zubkov1,2, B.A. Neymark3,4, F.A. Sevryukov5, A.A. Ovsyukov2, D.V. Gryadunov6
1 Kirov State Medical University, Kirov, Russian Federation
2 Central Clinical Hospital "RZD-Meditsina", Kirov, Russian Federation
3 Altai State Medical University, Barnaul, Russian Federation
4 Central Clinical Hospital "RZD-Meditsina", Barnaul, Russian Federation
5 Privolzhsky Research Medical University, Nizhny Novgorod, Russian Federation
6 Terriroty Clinical Hospital, Barnaul, Russian Federation
Actually, ureteral stenting is one of the most common methods of internal drainage of the upper urinary tract. According to most authors, potential prolonged passage of urine without contact with the external environment, rapid patient activation and mitigation of inflammatory complications are advantages of this method. Typically, ureteral stents are intended to be introduced for 2–12 weeks; longer stay of the ureteral stent inside the body increases the likelihood of its encrustation significantly. The longer the stent remains in the urinary tract, the more pronounced encrustation is, as well as the higher risks of the lumen closure and severe complications associated with the obstruction are.
Аim: to study causes of stent encrustation including those in patients with non-aggressive urolithiasis without frequent relapses; to determine approaches to treatment of the patient cohort, and to evaluate types of surgical interventions used to manage stent lithiasis. The paper presents clinical case reports of long-standing internal stents, as well as it describes methods of surgical interventions for different clinical variants of the disease and the treatment outcomes in the Urology Departments at the Central Clinical Hospitals "RZD-Meditsina" in Kirov and Barnaul. The conclusion is made about importance of following scheduled dates of surgical interventions in patients with stents in the urinary tract, and adverse consequences (i. e., prolonged disability, forced multi-stage treatment, and long-term rehabilitation) were assessed.
Keywords: urolithiasis, ureteral stent, "forgotten" encrusted stent, transurethral laser lithotripsy, cystolithotripsy.
For citation: Zubkov I.V., Neymark B.A., Sevryukov F.A., Ovsyukov A.A., Gryadunov D.V. Urolithiasis induced by a "forgotten" ureteral stent (case reports). Russian Medical Inquiry. 2026;10(4):–251 (in Russ.). DOI: 10.32364/2587-6821-2026-10-4-11
About the authors:
Ivan V. Zubkov — C. Sc. (Med.), Assistant Professor of the Department of General Surgery, Kirov State Medical University; 112, Vladimirskaya str., Kirov, 610027, Russian Federation; Head of the Urology Department, Central Clinical Hospital "RZD-Meditsina"; 151, Oktyabrskyi ave., Kirov, 610001, Russian Federation; ORCID iD 0000-0002-9169-8410
Boris A. Neymark — Dr. Sc. (Med.), Professor, Professor of the Department of Urology and Andrology with a Course in Advanced Medical Education, Altai State Medical University; 40, Lenin ave., Barnaul, 656038, Russian Federation; Head of the Urology Department, Central Clinical Hospital "RZD-Meditsina"; 20, Molodezhnaya str., Barnaul, 656038, Russian Federation; ORCID iD 0000-0001-8009-3777
Fedor A. Sevryukov — Dr. Sc. (Med.), Honored Doctor of Russia, Professor, Professor of the Department of Urology named after E.V. Shakhov, Privolzhsky Research Medical University; 10/1, Minin and Pozharsky sq., Nizhny Novgorod, 603950, Russian Federation; ORCID iD 0000-0001-5120-2620
Alexey A. Ovsyukov — Second Category Urologist, Urology Department, Central Clinical Hospital "RZD-Meditsina"; 151, Oktyabrskyi ave., Kirov, 610001, Russian Federation; ORCID iD 0009-0004-8631-0292
Dmitryi V. Gryadunov — Head of the Urology Department, Terriroty Clinical Hospital; 1, Lyapidevsky str., Barnaul, 656045, Russian Federation; ORCID iD 0009-0002-5470-5076
Contact information: Ivan V. Zubkov, e-mail: ivanzub1999@yandex.ru
Financial Disclosure: no authors have a financial or property interest in any material or method mentioned.
There is no conflict of interest.
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