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Current therapeutic options for ureteral stones include active intervention as well as conservative "watch and wait" approaches. Endoscopic treatment of ureteral stones has a high success rate and reliably results in immediate stone removal However, surgical as well as anaesthetic risks are not negligible and serious complications are possible. For many patients, a conservative treatment is an appealing option. Watchful waiting, however, not always results in stone clearance and may be associated with recurrent renal colics.
The therapeutic potential of alpha-blockers for ureteral stone disease has been investigated prompted by the detection of alpha-receptors in ureteral smooth muscle cells. Blocking of such receptors, which are predominantly located in the distal part of the ureter results in relaxation of the ureteral wall and modulation of peristaltic activity. This mechanism has been proposed to facilitate stone passage for ureteral calculi.
Numerous clinical trials have revealed a significant improvement of the stone expulsion rate using the alpha-blocker tamsulosin. Most of these studies were randomised but none were performed in a double-blind and placebo-controlled fashion. Therefore, the objective of this trial was to evaluate the efficacy of medical expulsive therapy with tamsulosin in a randomised, double-blind, placebo-controlled setting.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Department of Urology, University Hospital Zürich, Switzerland
University of Zurich
Published on BioPortfolio: 2014-08-27T03:24:46-0400
The purpose of this study is to determine the efficacy of the α-adrenergic antagonist tamsulosin in the treatment of adult emergency department (ED) patients with ureteral colic secondary...
To determine if emergency department patients with acute ureteral colic pain due to a ureteral stone who are treated with tamsulosin, versus placebo, will experience a shorter time to pass...
Ureteral stones have an important place in daily urological practice, usually causing acute episodes of ureteral colic by obstructing the urinary tract. The aim of the study is to evaluate...
This is a single institution, prospective study to evaluate the prognostic significance of renal and bladder ultrasound with ureteral jet assessment and its utility to evaluate the spontan...
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A 54-year-old man presents to the emergency department with acute onset left flank pain that radiates to the groin. A computed tomography scan of the abdomen/pelvis without contrast reveals a 7-mm dis...
Reply to Christian Seitz's Letter to the Editor re: Zhangqun Ye, Guohua Zeng, Huan Yang, et al. Efficacy and Safety of Tamsulosin in Medical Expulsive Therapy for Distal Ureteral Stones with Renal Colic: A Multicenter, Randomized, Double-blind, Placebo-controlled Trial. Eur Urol. In press. https://doi.org/10.1016/j.eururo.2017.10.033.
Clinicians use tamsulosin, an α1-adrenoceptor antagonist, to manage symptomatic benign prostatic hyperplasia (BPH). Because α1-adrenoceptors are also present in the brain, the potential exists for a...
Non-contrast computed tomography (NCCT) is not always performed clinically if the diagnosis of ureteral calculi has been confirmed using other radiographic imaging modalities. The aim of this study wa...
Alpha blockers (AB) are the main group of drugs used for medical expulsive therapy (MET) in patients with ureteral stones. However, there is no consensus on the relative efficacy and safety of individ...
Stones in the URETER that are formed in the KIDNEY. They are rarely more than 5 mm in diameter for larger renal stones cannot enter ureters. They are often lodged at the ureteral narrowing and can cause excruciating renal colic.
Renal calculi with a characteristic shape like antlers of a deer, formed as it extends into multiple calices of the RENAL PELVIS. A large number of staghorn calculi as well as other URINARY CALCULI are composed of STRUVITE.
The insertion of a catheter through the skin and body wall into the kidney pelvis, mainly to provide urine drainage where the ureter is not functional. It is used also to remove or dissolve renal calculi and to diagnose ureteral obstruction.
Presence of small calculi in the terminal salivary ducts (salivary sand), or stones (larger calculi) found in the larger ducts.
Absence of urine formation. It is usually associated with complete bilateral ureteral (URETER) obstruction, complete lower urinary tract obstruction, or unilateral ureteral obstruction when a solitary kidney is present.
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