The Surgical Management of Large Bladder Calculi and Irreducible Uterine Prolapse: A Case Report and Review of Literature.

Bladder calculi are rare in women. We report a case of bladder calculi complicating irreducible uterovaginal prolapse. It provides diagnostic and operative challenges to the management team. A 77-year-old woman presented with irreducible complete uterovaginal prolapse. Bladder stones were appreciated on examination and confirmed with imaging. The patient was managed surgically with transabdominal hysterectomy with bilateral uterosacral colpopexy followed by cystolithotomy. The patient's postoperative course was uncomplicated, and she had an uneventful recovery at her 3-month postoperative visit without a recurrence of prolapse and gained good continence. The presence of bladder calculi should be considered in the setting of irreducible pelvic organ prolapse. The abdominal approach of cystolithotomy with a concomitant hysterectomy and vaginal apical suspension is safe and effective.

Ray sum image: its efficacy in renal tract calculus detection.

AIM: To determine the efficacy of a ray sum image derived from computed tomography of the kidneys, ureters and bladder (CT KUB) in detecting renal tract calculi and whether this can replace the baseline abdominal radiograph (AXR). MATERIALS AND METHODS: This is a retrospective study performed at a tertiary referral centre examining adult patients referred for urolithiasis who had undergone AXR within 24 hours of the diagnostic CT KUB. AXR and ray sum image for calculus visibility were reviewed blindly by two readers. Anteroposterior thickness of the patient, presence of excess gas/faecal material, calculus size, location, and mean attenuation were analysed to determine effect on the AXR and ray sum sensitivity. RESULTS: One hundred and fifty-two calculi were examined with ray sum image sensitivity of 44% (95% confidence interval [CI]: 36-52) and AXR 30% (95% CI: 22-38). Calculus size and mean attenuation significantly affected sensitivities of both ray sum and AXR. There was substantial agreement between the two techniques with κ(Kappa)=0.70 (95% CI: 0.58-0.81, p<0.001). CONCLUSION: Ray sum image as a post-processed image derived from CT KUB dataset may be a viable alternative to the baseline AXR in patients with CT proven urolithiasis. This would reduce patient radiation dose and streamline workflow in busy radiology and emergency departments.

Robot-assisted laparoendoscopic single-site surgery for the simultaneous management of multiple urinary tract calculi: a case report and experience sharing.

BACKGROUND: Urolithiasis is a clinically common benign disease in urology. Surgical treatments that are widely used in urolithiasis are percutaneous nephrolithotomy, rigid/flexible ureteroscopy, laparoscopic surgery, and endoscopic combined intrarenal surgery. The da Vinci surgical system is rarely used in the treatment of urolithiasis. In the current study, we report a case of multiple urinary tract calculi treated by robot-assisted laparoendoscopic single-site (RA-LESS) surgery. CASE PRESENTATION: A 49-year-old male patient was admitted to our hospital and diagnosed with multiple urinary tract calculi. He previously underwent right ureterolithotomy, laparoscopic cholecystectomy, and extracorporeal shockwave lithotripsy. Computed tomography (CT) scan and three-dimensional reconstruction CT image showed that multiple calculi were located in the right kidney, right upper ureter, and bladder. The preoperative glomerular filtration rate (GFR) were 17.81 ml/min (right kidney) and 53.11 ml/min (left kidney). We utilized the da Vinci system docking with a single-site port to perform pyelolithotomy, ureterolithotomy, and cystolithotomy, simultaneously. The operative time was 135 min and estimated blood loss was 30 ml. The postoperative hospital stay was 5 days. Three months after surgery, the serum creatinine and urea nitrogen levels dropped to a normal range, and no residual fragments were found in the CT scan. The postoperative GFR were 26.33 ml/min (right kidney) and 55.25 ml/min (left kidney). CONCLUSIONS: RA-LESS surgery is a safe and effective surgical procedure in the treatment of multiple urinary tract calculi; however, further investigation is needed to validate its long-term therapeutic effect.

A Rare Delayed Bladder Migration of a Hem-o-lok Clip 5 Years after Robotic-Assisted Radical Prostatectomy.

Bladder migration of a Hem-o-lok® clip, due to robotic-assisted radical prostatectomy (RARP), is uncommon, and would form a foreign body in the bladder and present as lower urinary tract symptoms after the early postoperative period. We hereby report a rare, delayed appearance of a secondary bladder stone due to the migration of a Hem-o-lok® clip that occurred 5 years after RARP.

[Clinical implications of dual-energy computed tomography in the diagnosis and treatment of urolithiasis].

Urolithiasis (urolithiasis) is one of the most common urologic diseases with an estimated prevalence of no less than 3% in the population, usually affecting active working-age patients of 30-50 years. Taking into account major public health and economic significance of this problem, there is the need for the development of effective modern diagnostic techniques. Rapid medical-technological advances of the past two decades have led to the wide spread use of minimally invasive surgery the management of urolithiasis. Nevertheless, surgical intervention only removes the result of a long pathological process and does not change its course. Thus, there is a need for a detailed understanding of the etiology, epidemiology, and pathogenesis of urolithiasis. Diagnostic imaging plays a key role in the diagnosis of urolithiasis. Multislice spiral computed tomography (MSCT) is the gold standard for the diagnosis of urolithiasis. It provides information about the size, location, and density of the calculus. Over the past decade, the use of dual-energy computed tomography (DECT) in urological practice has been widely discussed in the international and domestic literature. One of the main advantages of DECT is the ability to determine the chemical composition of urinary stones. Previous studies have reported a high diagnostic value of the method, including the ability to predict treatment outcomes. However, the shortcomings of the method and the absence of standardized examination protocols leave a wide field for further research. This article reviews major distinctive features of using DECT in the diagnosis of urolithiasis.

[Renal Failure Due to a Bladder Stone Associated with a Suprapubic Catheter Left for Ten Years ; A Case Report].

A 43-year-old male was injured by a heavy industrial machine in 1998, and suprapubic catheter was inserted because of pubic fracture and urethral injury. He monthly changed the catheter until 2005, but he stopped going to the hospital. Ten years later, in August 2015, he visited our hospital for tiredness. Computed tomography scan showed a huge bladder stone (6×6×4 cm) with suprapubic catheter and bilateral severe hydronephrosis. The level of serum creatinine was 4.79 mg/dl. Bilateral nephrostomy was performed immediately. After improvement of renal function, we performed cystolithotomy and cystostomy. Bilateral nephrostomy was removed with antegrade pyelography seven days after surgery, and he went home on the fourteenth day. Bladder stones due to long-term catheterization without exchange are very rare. We report the clinical course and findings about this patient.

Overflow urinary incontinence due to bladder stones.

Overflow urinary incontinence is rare in women. We report a case of overflow incontinence due to bladder stones in a 40-year-old widow (para 2) who presented with a 5-month history of involuntary loss of urine aggravated by postural change, and associated with recurrent painful ineffectual urge to urinate. Her intravenous urogram revealed multiple bladder stones, for which she underwent cystolithotomy. However, following catheter removal on the fifth postoperative day, she developed urge incontinence due to urinary tract infection. She responded well to the choice of antibiotics dictated by the sensitivity result of her postoperative urinary culture, and she was discharged home on the ninth postoperative day. This case highlights the uncommon occurrence of bladder stones as a cause of urinary incontinence, as well as the potential value of intravenous urography in incontinence evaluation.

[A case of giant bladder stone in a young man with neither lower urinary tract dysfunction nor foreign body in the bladder].

A 38-year-old man visited our hospital complaining of lower urinary tract symptoms. He had undergone extracorporeal shockwave lithotripsy to remove a right renal stone two times when he was 24 years old. Since examinations revealed right staghorn calculi and a giant bladder stone, vesicolithotomy was carried out. The removed stone measured 95 × 75 × 55 mm and weighed 250 g. We hypothesized that a fragment of the upper urinary tract stone had reached the bladder which could not be discharged spontaneously, and grew in the bladder. After the operation, uroflowmetry and voiding cystourethrography were performed and the results indicated no abnormalities in the lower urinary tract function.

Vesicocutaneous fistula at site of closed suprapubic tube tract as the first presenting sign of giant bladder stone.

Bladder stones represent approximately 5% of all cases of urolithiasis and are typically identified and managed long before causing irreversible renal injury. We present a case of a man in his 40s with a prior history of a gunshot wound to the abdomen who presented with leakage from a previously healed suprapubic tube tract and was found to have a giant bladder stone with a resulting renal injury. He subsequently underwent a combined open cystolithotomy and vesicocutaneous fistulotomy during his hospitalisation, which helped to improve his renal function. In addition to there being few reported cases of bladder stones >10 cm, this represents the first report in the literature of an associated decompressive 'pop-off' mechanism through a fistulised tract.

Significance of twinkling artifact on ultrasound in the diagnosis of cystine urolithiasis.

Twinkling artifact (TA) refers to the finding characterized by both a high-echoic mass upon B-mode ultrasound (US) and turbulence-like signals over the entire mass without significant blood flow on color Doppler US. TA is a characteristic sign of urolithiasis, and there has been no previous report on this finding in the digestive tract. The authors recently encountered a 2-year 9-month-old boy with cystinuria presenting with an opacified abdominal mass. Although he was originally diagnosed as having calcified stool mass, the finding of TA upon US led to the correct diagnosis of huge urolith (4.2 cm in diameter) in the urinary bladder. Laparotomic stone removal was successfully conducted and the calculus was confirmed to be composed of cystine. The finding of TA upon US facilitates identification of the structure and location of the intra-abdominal mass.

14F Super-Mini Percutaneous Cystolitholapaxy: A Novel Technique in the Treatment of Bladder Stones.

Introduction: This single-center experience describes the indications, novel technique, and outcomes of performing 14F super-mini percutaneous cystolitholapaxy (14F-SMPCCL). Materials and Methods: Cases between 2019 and 2022 were retrospectively identified with surgical outcomes recorded. Using percutaneous access to the bladder, an endoscope was inserted through the ClearPetra 14F super-mini sheath and laser lithotripsy completed with stone fragments suctioned out. Results: Sixteen cases were included in the study and all patients were adults. Average conglomerate stone size was 28.1 mm (range = 10-50 mm). Average operative time was 60.0 minutes (range = 23-110 minutes). Visual stone-free rate was 91.7%, radiologic stone-free rate was 81.3%, and average postoperative length of stay was 1 day. One patient developed urosepsis postoperatively and there were no other complications. Conclusion: The novel technique of 14F-SMPCCL is safe and feasible for treating large burdens of bladder stones with a conglomerate size of ∼2.5 to 5 cm. Active suction allows for efficient removal of stone fragments.

Intrauterine device migration into the bladder leading to stones formation.

An intrauterine device (IUD) is a popular method of contraception mainly used in developing countries. Perforation is one of the most serious but a rare complication secondary to the insertion of an IUD, while perforation into the intravesical organs such as the bladder is even more rare. A 30-year-old multipara in early 30s, with two previous caesarean sections (CS) and one curettage, was found to have her IUD puncturing the bladder during a cystoscopy procedure to remove her bladder stones. Transvesical migration of an IUD is an uncommon complication with a high rate of calculi formation, which is thought to be caused by the IUD's lithogenic potential. Imaging approaches such as ultrasound and pelvic X-rays are considered imperative in the accurate diagnosis. Any migrated IUD should be removed regardless of location. Prompt and continual monitoring of women using an IUD is essential and in a case where the IUD has migrated, the removal using the endoscopic approach is a safe and effective method.

Irreducible procidentia due to multiple bladder calculi mimicking impacted faecal mass.

A case of massive irreducible procidentia with a hard palpable mass in the anterior vaginal wall mimicking an impacted faecal mass in a 57-year-old multiparous, post-menopausal woman is reported. Inability to walk, constipation and urinary incontinence were her primary complaints. Routine CT of the abdomen and pelvis excluded intestinal pathology, but failed to reveal multiple vesical calculi as the procidentia was lying outside the imaging zone of the pelvic CT. However, targeted plain X-ray and ultrasound of the prolapsed mass disclosed the existence of multiple vesical calculi. The patient was managed with single-stage laparotomy and vaginal hysterectomy. Hysterectomy permitted the reduction of the prolapse and facilitated extraperitoneal vesicolithotomy. Laparotomy excluded bowel pathology. No reconstructive surgical steps for repair and reconstruction were combined. Currently, the patient is relieved of all symptoms and her asymptomatic stage II vault prolapse is managed conservatively.