Evidence map›Paper›PMID 42881348›Full record

ArticleInternational urology and nephrology2026

Institutional billed-charge patterns and resource utilization in flexible navigable aspiration sheath-assisted and no-access-sheath ureteroscopy: a single-center descriptive cohort study.

Christina Schweitzer, Phyo Phyo Min Thu, Amar Kassim, Abdulla Sabry, Marly Aziz, Dariush Khezrimotlagh, Akin S Amasyali

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Article in International urology and nephrology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Christina SchweitzerPenn State College of Medicine, Hershey, PA, USA.
Phyo Phyo Min ThuPenn State College of Medicine, Hershey, PA, USA.
Amar KassimPenn State College of Medicine, Hershey, PA, USA.
Abdulla SabryPenn State College of Medicine, Hershey, PA, USA.
Marly AzizPenn State College of Medicine, Hershey, PA, USA.
Dariush KhezrimotlaghPennsylvania State University Harrisburg, Middletown, PA, USA.
Akin S AmasyaliDepartment of Urology, Endourology and Minimal Invasive Urologic Surgery, Penn State College of Medicine, Penn State Health Milton S. Hershey Medical Center, 500 University Drive, Room C4830A, Hershey, PA, 17033, USA. aamasyali@pennstatehealth.psu.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo describe institutional billed-charge patterns and resource utilization in flexible navigable aspiration sheath (FANS)-assisted ureteroscopy and ureteroscopy performed without a ureteral access sheath (NoUAS), recognizing that the two pathways were used in clinically different populations.

methodsWe retrospectively evaluated 88 ureteroscopy cases performed by a single endourologist from September 2024 through August 2025. Preoperative stone volume was manually derived from computed tomography measurements using an ellipsoid approximation. Continuous variables are reported as median (interquartile range [IQR]) and compared with Wilcoxon rank-sum tests; categorical variables used Fisher exact tests. Because case mix and site of service were markedly imbalanced and numeric operative-time data were incomplete for outpatient cases, comparisons were treated as descriptive rather than as estimates of an independent device effect.

resultsThirty-six cases used FANS and 52 used NoUAS. FANS cases had greater median stone volume (553 [IQR 257-1,141] vs 208 [115-463] mm

conclusionFANS cases occurred within a more complex, higher-charge care pathway, but the observed differences cannot be attributed to the device itself. These data provide an institutional benchmark for future analyses using clinically comparable cohorts, standardized outcomes, and actual cost data.

Indexed as

Flexible navigable aspiration sheathHospital chargesNephrolithiasisResource utilizationUreteral access sheathUreteroscopy

Identifiers

PMID42881348

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