OBJECTIVE: The aim of this study is to investigate the independent risk factors of benign prostatic hyperplasia (BPH) complicated with bladder stones, and construct a nomogram prediction model for clinical progression of bladder stones in patients with BPH. METHODS: The clinical data of 368 BPH patients who underwent transurethral resection of the prostate in the Second Affiliated Hospital of Zhengzhou University from January 2018 to January 2021 were retrospectively analyzed. Patients with BPH were divided into group 1 (with bladder stones, n=94) and group 2 (without bladder stones, n=274). Univariate and multivariate logistic regression analyses were performed to determine the independent risk factors of bladder stones in patients with BPH. A nomogram model was developed, and the areas under the ROC curve and calibration curve were calculated to assess the accuracy of clinical application. RESULTS: Logistic analysis showed that age (HR:1.075,95%CI:1.032 to 1.120), hypertension (HR:2.801,95%CI:1.520 to 5.161), blood uric acid (HR:1.006,95%CI:1.002 to 1.010), intravesical prostatic protrusion (HR:1.189,95%CI1.119 to 1.264）, prostatic urethral angel（HR:1.127,95%CI:1.078to 1.178）were independent risk factors for bladder stones in patients with BPH. The discrimination of the nomogram model based on independent risk factors to predict the occurrence of bladder stones in patients with BPH was 0.874. CONCLUSION The nomogram model can predict the risk of bladder stones in BPH patients with good differentiation and calibration, which is a good guide for clinical work on BPH patients with high risk of bladder stones.
Humans ; Male ; Prostatic Hyperplasia/complications* ; Nomograms ; Urinary Bladder Calculi/etiology* ; Retrospective Studies ; Risk Factors ; Aged ; Logistic Models ; Middle Aged ; ROC Curve ; Transurethral Resection of Prostate

OBJEVTIVETo analyze the complications of extracorporeal shock wave lithotripsy (ESWL) for treatment of lower urinary tract stones and identify the factors contributing to the complications.

METHODSWe retrospectively analyzed the postoperative complications of ESWL in 83 patients with lower urinary tract stones and their association with the patients' age, height, body weight, body mass index (BMI), stone features, shock wave times, and shock wave energy.

RESULTSOf the 83 cases treated with ESWL, 72.3% (60 cases) showed gross hematuria, 27.7% (23 cases) complained of pain, and 25.3% (21 cases) had both pain and gross hematuria. None of the patients reported vomiting, skin rash, flatulence, gastrointestinal bleeding or other complications. Patients with postoperative gross hematuria, pain, and both had significantly greater stone length, stone width and more shock body times than those without these complications (P<0.01 or P<0.05). Patients with gross hematuria had significantly lower height than those without complications (P<0.05).

CONCLUSIONThe common complications of ESWL for lower urinary tract stones include hematuria and pain. The patient's height, stone length, stone width and shock times are important factors contributing to these postoperative complications.

Abdominal Pain ; etiology ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Hematuria ; etiology ; Humans ; Lithotripsy ; adverse effects ; Male ; Middle Aged ; Retrospective Studies ; Urinary Bladder Calculi ; therapy ; Young Adult

Dystrophic calcification can be defined as a calcification that occurs in degenerated or necrotic tissue. It is associated with multiple clinical conditions, such as collagen vascular diseases. It involves the deposition of calcium in soft tissues despite no generalized disturbance in the calcium or phosphorus metabolism, and this is often seen at sites of previous inflammation or damage. Potassium-titanyl phosphate (KTP) laser vaporization of the prostate is safe and relatively bloodless procedure that results in a shorter catheterization, immediate symptomatic improvement, and less severe postoperative irritative symptoms. However, longer follow-up studies or reports about complications are lacking. Here in we report a case of dystrophic calcification and stone formation on the entire bladder neck after performing KTP laser vaporization of benign prostate hyperplasia. That was treated by lithotripsy and transurethral resection.
Aged ; Calcinosis/*diagnosis/pathology ; Humans ; Lasers, Solid-State/*adverse effects ; Lithotripsy ; Male ; Prostatic Hyperplasia/*surgery ; Urinary Bladder Calculi/*diagnosis/etiology/ultrasonography ; Urinary Bladder Diseases/*diagnosis/etiology/ultrasonography