Acta clinica Croatica最新文献

According to the International Continence Society, stress (static) urinary incontinence is defined as any involuntary loss of urine on effort or physical exertion, due to which intravesical pressure overcomes urethral pressure, with no detrusor activity. Urodynamic testing accurately assesses the function of the bladder and urethra. The urodynamic assessment includes three tests: cystometry, uroflowmetry and profilometry (determination of urethral pressure profile). Prior to urodynamic assessment, it is mandatory to rule out urinary tract infection since it is an invasive test. Urethral profilometry is a technique that measures pressure in the urethra and bladder at rest, during stressful actions, and during the act of miction. Its main purpose is to evaluate the sphincter mechanism. During the examination, a special catheter is used, which is being slowly pulled out from the bladder neck throughout the urethra, with continuous recording of intraurethral pressure. In addition to measuring urethral pressures, stress urinary incontinence is also very successfully proven by the cough test and Bonney test. If, on forced cough, the urine escapes uncontrollably, and continence is restored by finger lifting the neck of the bladder, the diagnosis of static incontinence is confirmed. At our urogynecologic clinic, urodynamic examination is being routinely performed. In the present study, we included patients previously treated for urinary stress incontinence and compared their results of urodynamic assessment to the results of Bonney test. Of the 43 subjects in whom stress incontinence was proven with Bonney test, we recorded an appropriate profilometry result in 13 cases.

Chronic kidney disease (CKD) is among the most significant health problems, with the associated cardiovascular disease and bone metabolism disorders being the leading cause of morbidity and mortality in these patients. The aim of the study was to determine markers of bone turnover in patient sera (phosphates, calcium, alkaline phosphatase, parathyroid hormone and osteoprotegerin (OPG)) in all stages of kidney failure including kidney transplant recipients. We also wanted to determine whether dialysis vintage affects recovery of bone markers one year after transplantation. There were 164 study patients, whereas 30 healthy individuals served as a control group. Serum OPG progressively increased with decline of the glomerular filtration rate. The highest OPG concentration was recorded in dialysis group. We observed a statistically significant OPG increase in stage 2 CKD. In kidney transplant group, there was positive correlation between OPG and dialysis vintage. We also found that serum OPG was lower in patients treated with dialysis for less than 4 years prior to transplantation. We confirmed that CKD-mineral and bone disorder began in stage 3 CKD with parathyroid hormone and OPG elevation, and a statistically significant OPG increase in stage 2 CKD might be an early sign of CKD-mineral and bone disorder. Dialysis vintage longer than 4 years is associated with more significant disturbances in mineral and bone metabolism.

The aim of this study was to compare the number of newly diagnosed, histopathologically confirmed cases of urothelial carcinoma before and during the COVID-19 pandemic at the Zagreb University Hospital Center. We retroactively collected and analyzed 300 histopathologically confirmed urothelial carcinoma between January 1, 2019, and December 31, 2020, at the Department of Pathology and Cytology, Zagreb University Hospital Center. Our results showed that during the COVID-19 pandemic, there was a statistically significant decrease (p=0.001; χ2-test) in the number of newly diagnosed, histopathologically confirmed cases of urothelial carcinoma at the Zagreb University Hospital Center. There was a decrease in the absolute number of newly diagnosed urothelial carcinoma by 25.8% in the observed time of the pandemic (March 19, 2020 to December 31, 2020) as compared to the same period of the previous year (March 19, 2019 to December 31, 2019). Our study is the first study of this type based on the number of newly diagnosed urothelial carcinoma in Croatia. Observing the early period of the pandemic, our results provide important foundation for future monitoring and long-term consequences of the pandemic on the morbidity and mortality of urothelial carcinoma.

We report a case of a 31-year-old patient with obstructive ureterolithiasis in a transplanted kidney, treated endoscopically with flexible ureterorenoscopy and laser lithotripsy. The patient presented with biochemical signs of acute renal failure and ultrasonographically detected hydronephrosis. Emergency nonenhanced computed tomography scan revealed an obstructive 5-mm stone in the ureter of the transplanted kidney with resulting hydronephrosis. The patient received a double J stent to relieve allograft obstruction. Since the stone size was deemed favorable for conservative treatment, the patient was discharged. Two months later, he was readmitted for leucopenia caused by mycophenolate mofetil. After recuperation of his white blood cell count, he was referred to extracorporeal shock wave lithotripsy, but since the stone was radiolucent, an endoscopic procedure was indicated. Retrograde endoscopic flexible ureterorenoscopy with 'dusting' of the stone was successfully performed. One year after the procedure, the patient was stone free and with good allograft function.

The objective of this study was to present results of kidney tumor treatment at Osijek University Hospital Center over a 5-year period and to compare the outcomes between patients treated with radical nephrectomy (RN) and partial nephrectomy (PN). From November 2016 until the end of 2021, there were 280 consecutive PNs and RNs included in this cross-sectional study. Exclusion criteria were nephrectomies due to non-oncologic reasons and transitional cell carcinoma. There were 229 RNs and 51 PNs, median age of all patients was 62.5 (range 34-84) years. In the RN group, there were 197 renal cell carcinomas (RCC), predominantly clear-cell subtype, while among others there were 8 multilocular cystic renal neoplasms of low malignant potential (MCRNLMP) and 6 oncocytomas and angiomyolipomas each. There were 44 RCCs, 4 oncocytomas, 1 MCRNLMP and 2 cysts removed with PN; median R.E.N.A.L. score was 5. RN group had greater tumor diameters and higher tumor grade, higher postoperative creatinine levels and complications of higher grade. There was no difference in median hospital stay (6 days) and follow-up (20 months). With regard to oncologic safety, preservation of kidney function and lower overall morbidity, PN should be preferred to RN whenever oncologically safe and technically feasible.

The aim is to present our case series documenting indications, laparoscopic technique, surgical and endocrinologic outcomes of laparoscopic partial adrenalectomy. In the period from April 2011 until October 2021, we performed 39 procedures. The patients were divided into three groups: unilateral adrenal gland tumor with a normal contralateral gland (group 1), tumor of the solitary adrenal gland (group 2), and adrenal cysts (group 3). There were 20 patients in group 1, 6 patients in group 2, and 13 patients in group 3. The most common histology in group 1 was adenoma (40%), all tumors in group 2 were renal cell carcinoma metastases, and all cysts in group 3 were benign. There were no major complications (Clavien Dindo grade ≥2) in the whole cohort. All patients in groups 1 and 3 had favorable endocrinologic outcomes, and 50% of group 2 patients required lifelong hydrocortisone replacement therapy. The procedure is safe and feasible with favorable outcomes in the hands of a high volume adrenal surgeon.

Although radical prostatectomy is considered the gold standard for optimal treatment of localized prostate cancer, this radical surgery carries a significant risk of erectile dysfunction and urinary incontinence which can be present as transient or permanent side effects in many patients. We have made significant advances in diagnostic and surgical approach to prostate cancer, using a number of new methods that are becoming increasingly available, resulting in better treatment outcomes. However, we still do not use all the possibilities for the prevention and treatment of these side effects, probably due to their insufficient research, or unclear effectiveness. Functional magnetic stimulation is a method used to treat a large number of diseases, i.e., to alleviate their symptoms and ailments. Its role through pelvic stimulation has been proven in the treatment of incontinence in women, and in our study, we want to determine its role in more detail, primarily in the treatment of urinary incontinence in patients after prostate cancer surgery. In case of positive results, this method may be recommended for wider use in patients with adverse effects of radical prostatectomy.

Urinary stents, be it urethral or ureteral, polymeric, metallic or biodegradable, are one of the most frequently used tools in urology and they have been used for decades in prophylactic and therapeutic setting. Although relatively low invasive, they are prone to complications and adverse effects so much that complication rates up to 100% have been described. Many reviews have focused either on specific groups of patients or particular stent types, materials or designs but so far, no comprehensive review on complications has been published. To tackle this issue, a working group was set up within ENIUS (European Network of multidisciplinary research to Improve Urinary Stents) tasked with literature search in order to screen for and systematically review published stent complications in urethra (male only) and ureters (polymeric and metallic ureteral stents in both sexes) when used in obstructed systems. In this paper, we review, catalogue and summarize complications published for metallic urethral and ureteral stents.

Although the gold standard in the management of kidney tumors is surgical treatment, thermal ablation methods are a viable therapeutic option for patients with small (<4 cm) renal masses who are poor surgical candidates. The aim of this study was to compare the technical success, primary efficacy and complication rate of percutaneous radiofrequency and microwave ablation in the treatment of small renal masses. A retrospective analysis of consecutive patients with small renal masses treated with radiofrequency or microwave ablation between December 2017 and January 2022 was conducted. Response to the ablative therapy was assessed on contrast-enhanced computed tomography examination after 3 months. Ablations of 44 kidney lesions were performed in 43 patients. Sixteen lesions were treated with radiofrequency and 28 with microwave ablation. Both methods were associated with high technical success (100%). Primary efficacy rates of radiofrequency and microwave ablation were 81.3% and 89.3%, respectively. Ablation-related complications were noted only in the patients treated with microwave ablation (18.5%), all of them being low grade (Clavien-Dindo 1 and 2). Radiofrequency and microwave ablation exhibited comparable efficacy in the treatment of small renal masses. Microwave ablation was associated with a comparatively higher number of complications.

The postoperative care unit at the Department of Urology has significantly improved treatment of patients undergoing surgical procedures and reduced admission of urologic patients to the Intensive Care Unit (ICU). We examined the characteristics of urologic patients, time on mechanical ventilation, most common complications, and mortality in the period from January 2017 to March 2022. A total of 84 admissions to ICU were recorded, accounting for 1.5% of all patients having undergone surgical, therapeutic or diagnostic interventions under general or regional anesthesia at the Department of Urology. The most common reasons for admission to ICU were respiratory failure (79 patients), hemodynamic instability, and bleeding. The median time on mechanical ventilation was 9.7 [2.4-58.2] hours in urology patients vs. 6 [3-14.7] hours in the rest of surgical ICU patients (p=0.058). Hypertension and renal failure were more common in urologic than in the rest of surgical ICU patients (p<0.05). The overall mortality of urologic patients was lower than in the rest of surgical ICU patients (10.7% vs. 18.99%, p=0.08) but the difference did not reach statistical significance. Independently of the lower mortality, improvements in the outcome of urologic patients admitted to the ICU are feasible. Early identification of patients at risk of infections, postoperative respiratory failure, cardiovascular incidents, and bleeding may further reduce mortality and improve outcomes.