Emergency vs elective ureteroscopy for a single ureteric stone

Abdullatif Al-Terki 1, Majd Alkabbani 1, Talal A Alenezi 1, Tariq F Al-Shaiji 1, Shabir Al-Mousawi 1, Ahmed R El-Nahas 1 2

Affiliations

doi: 10.1080/2090598X.2020.1813004

Abstract

Objective: To compare emergency with elective ureteroscopy (URS) for the treatment of a single ureteric stone.

Patients and methods: The files of adult patients with a single ureteric stone were retrospectively reviewed. Patients with fever or turbid urine on passage of the guidewire beside the stone underwent ureteric stenting or nephrostomy drainage. Patients who underwent URS were included and divided into two groups: the emergency (EM) Group, those who presented with persistent renal colic and underwent emergency URS within 24 h; and the elective (EL) Group, who underwent elective URS after ≥14 days of diagnosis. Patients with ureteric stents were excluded. The technique for URS was the same in both groups. Safety was defined as absence of complications. Efficacy was defined as the stone-free rate after a single URS session.

Results: From March 2015 to September 2018, 179 patients (107 in the EM Group and 72 in the EL Group) were included. There were significantly more hydronephrosis and smaller stones in the EM Group (P = 0.002 and P = 0.001, respectively). Laser disintegration was needed in more patients in the EL Group (83% vs 68%, P = 0.023). Post-URS ureteric stents were inserted in more patients in the EM Group (91% vs 72%, P = 0.001). Complications were comparable for both groups (4.2% for EL and 5.6% for EM, P = 0.665). Stone-free rates were also comparable (93% in the EL Group and 96% in the EM Group, P = 0.336).

Conclusions: Emergency URS can be as safe and effective as elective URS for the treatment of a single ureteric stone if it is performed in patients without fever or turbid urine.Abbreviations: EL Group: elective group; EM Group: emergency group; KUB: plain abdominal radiograph of the kidneys, ureters and bladder; MET: medical expulsive therapy; NCCT: non-contrast CT; SFR: stone-free rate; SWL: shockwave lithotripsy; URS: ureteroscopy.

Keywords: Emergency; calculi; renal colic; ureter; ureteric stone; ureteroscopy.

Conflict of interest statement

No potential conflict of interest was reported by the authors.

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