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Comparison of flexible ureteroscopic suction techniques: efficacy and safety of flexible and navigable access sheath (FANS) vs. direct in-scope suction (DISS) in the management of 2–3 cm lower pole renal stones       
Yazarlar (6)
Doç. Dr. Ümit YILDIRIM Doç. Dr. Ümit YILDIRIM
Kafkas Üniversitesi, Türkiye
Dr. Öğr. Üyesi Mehmet USLU Dr. Öğr. Üyesi Mehmet USLU
Kafkas Üniversitesi, Türkiye
Dr. Öğr. Üyesi Mehmet EZER Dr. Öğr. Üyesi Mehmet EZER
Kafkas Üniversitesi, Türkiye
Çağlayan Erdoğdu
Kafkas Üniversitesi, Türkiye
Prof. Dr. Ramazan KOCAASLAN Prof. Dr. Ramazan KOCAASLAN
Kafkas Üniversitesi, Türkiye
Kemal Sarica
Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital, Turkey
Devamını Göster
Özet
This study compares the efficacy and safety of two techniques for flexible ureteroscopy (FURS) in managing 2–3 cm lower pole renal stones: the use of flexible and navigable access sheath (FANS) versus direct in-scope suction (DISS) without an access sheath. A retrospective analysis of 60 patients undergoing FURS for lower pole renal stones was conducted between March 2023 and January 2025. Group 1 (n = 32) underwent FANS-assisted procedures, while Group 2 (n = 28) underwent sheathless FURS with DISS. Stone-free rates (SFR) were assessed with non-contrast computed tomography (NCCT) after four weeks. Operative time, peri- and postoperative complications, and hospitalization duration were also compared. The mean operative time was significantly shorter in the FANS group (71.8 ± 11.5 min) compared to the DISS group (79.1 ± 11.7 min, p = 0.026). The difference between the SFRs obtained in the FANS group (62.5%) and the DISS group (46.4%) after the first session was not statistically significant (p = 0.162). After the second session, SFRs were also comparable (87.5% vs. 82.1%, p = 0.412) (Residual stones < 4 mm were considered stone-free). Completely stone-free rates (CSFR), defined as the absence of residual fragments after the first session were 43.7% in the FANS group and 32.1% in the DISS group (p = 0.256), while after the second session, these rates increased to 84.3% and 75%, respectively (p = 0.280). Postoperative fever rates (9.3% vs. 10.7%, p = 0.598) and hospitalization duration (2.5 ± 1.3 vs. 2.6 ± 1.4 days, p = 0.819) were similar. Both techniques achieved high overall SFRs for large lower pole stones in a staged manner. However, FANS was associated with a shorter operative time. While DISS eliminates the need for an access sheath, its longer operative time may be a limitation. Larger studies are needed to further evaluate these techniques.
Anahtar Kelimeler
Access sheath | Direct in scope | Flexible | Lower pole | Navigable | Suction
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Urolithiasis
Dergi ISSN 2194-7228 Wos Dergi Scopus Dergi
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 12-2025
Cilt No 53
Sayı 1
Doi Numarası 10.1007/s00240-025-01748-7