Comparison of long-term results after nephron-sparing surgery and radical nephrectomy in treating 4- to 7-cm renal cell carcinoma.

OBJECTIVE: The aim of our study was to compare long-term oncological outcomes following nephron-sparing surgery (NSS) and radical nephrectomy (RN) for renal cell carcinoma (RCC) 4 to 7 cm in diameter. MATERIAL AND METHODS: The study included patients who underwent RN or NSS for RCC 4 to 7 cm in diameter between 1998 and 2009. The studied groups were compared with respect to the patients' age, sex, physical status according to the American Society of Anesthesiologists Physical classification, histological type, stage, tumor size, grade, duration of the operation, and complications. Survival was established using the Kaplan-Meier method. The risk factors for survival were analyzed using a multivariate Cox regression model. RESULTS: During the study, 351 patients underwent surgery: 317 patients (90.3%) underwent RN, and 34 (9.7%), NSS. The compared groups differed with respect to tumor size (P=0.001) and stage (P=0.006). The overall estimated 12-year survival was 53.7% after RN and 55.2% after NSS (log-rank test P=0.437). The 12-year cancer-specific survival in the RN and NSS groups was 69.6% and 80.6%, respectively (log-rank test P=0.198). Pathological stage and patients' age were the major factors affecting both overall and cancer-specific survival. The type of surgery (NSS or RN) had no effect on survival. CONCLUSIONS: Our study showed that nephron-sparing surgery is a safe technique compared with radical nephrectomy that ensures good oncological control in the treatment of renal cell carcinoma measuring 4 to 7 cm and may be proposed as the treatment of choice for renal tumors not only up to 4 cm, but also 4 to 7 cm in size.

Head-to-Head Comparison of Two Nomograms Predicting Probability of Lymph Node Invasion in Prostate Cancer and the Therapeutic Impact of Higher Nomogram Threshold.

Introduction: The aim of the study was to compare the performance of the 2012 Briganti and Memorial Sloan Kettering Cancer Center (MSKCC) nomograms as a predictor for pelvic lymph node invasion (LNI) in men who underwent radical prostatectomy (RP) with pelvic lymph node dissection (PLND), to examine their performance and to analyse the therapeutic impact of using 7% nomogram cut-off. Materials and Methods: The study cohort consisted of 807 men with clinically localised prostate cancer (PCa) who underwent open RP with PLND between 2001 and 2019. The area under the curve (AUC) of the receiver operator characteristic analysis was used to quantify the accuracy of the 2012 Briganti and MSKCC nomograms to predict LNI. Calibration plots were used to visualise over or underestimation by the models and a decision curve analysis (DCA) was performed to evaluate the net benefit associated with the used nomograms. Results: A total of 97 of 807 patients had LNI (12%). The AUC of 2012 Briganti and MSKCC nomogram was 80.6 and 79.2, respectively. For the Briganti nomogram using the cut-off value of 7% would lead to reduce PLND in 47% (379/807), while missing 3.96% (15/379) cases with LNI. For the MSKCC nomogram using the cut-off value of 7% a PLND would be omitted in 44.5% (359/807), while missing 3.62% (13/359) of cases with LNI. Conclusions: Both analysed nomograms demonstrated high accuracy for prediction of LNI. Using a 7% nomogram cut-off would allow the avoidance up to 47% of PLNDs, while missing less than 4% of patients with LNI.

Transition zone volume measurement--is it useful before surgery for benign prostatic hyperplasia?

OBJECTIVE: The aim of this study was to estimate the equivalence and correlation between transition zone volume, measured by transrectal ultrasound, and removed prostate tissue weight in surgically treated patients due to benign prostatic hyperplasia. MATERIAL AND METHODS: This study involved 168 patients with histologically confirmed benign prostatic hyperplasia. Of these patients, 120 underwent transurethral resection of the prostate and 48 - open prostatectomy. The weights of the specimens were compared with the corresponding volumes of the transition zone. Equivalence and correlation between transition zone volume and removed tissue weight were analyzed. RESULTS: The mean (standard deviation, range) transition zone volume was 25.43 mL (+/-13.19, 5-61.6) in the transurethral resection group and 76.1 mL (+/-42.97, 13-275.8) in the open operation group. The mean removed tissue weight was 22.9 g (+/-13.41, 5-66) and 73.96 g (+/-44.96, 18-280), respectively, in the transurethral resection and open operation groups. The correlation between removed tissue weight and transition zone volume was stronger in the open operation group than it was in the resection group (r=0.957, P<0.001 vs. r=0.878, P<0.001). There was a significant difference between transition zone volume and resected tissue weight (P=0.001). However, in the open operation group, there was an agreement between transition zone volume and enucleated tissue weight (P=0.263). CONCLUSIONS: A significant correlation was detected between removed tissue weight and transition zone volume. There is a significant difference between volume measurement and resected tissue weight while enucleated tissue weight was in agreement with transition zone volume when an open prostatectomy was performed.

[Importance of prostate volume for detection of prostate cancer by first sextant biopsy in high-risk patients]. / Prostatos turio reiksme nustatant prostatos vezi pirmaja sekstantine biopsija dideles rizikos pacientams.

UNLABELLED: The aim of this study was to evaluate the relevance of prostate gland volume, transitional zone volume, and transitional zone index for the detection of prostate cancer by the first sextant biopsy. MATERIAL AND METHODS: A total of 121 men with high risk of prostate cancer were included in our study (prostate-specific antigen level higher than 4 ng/mL and/or pathological digital rectal examination). We consulted the patients in Outpatient Department of Kaunas University of Medicine Hospital during 2003-2006. Total prostate volume and transition zone volume were measured, and all patients underwent transrectal ultrasound-guided sextant biopsy of the prostate. According to histological results of prostate biopsy, patients were divided into two groups: benign group (benign prostate hyperplasia and high-grade intraepithelial neoplasia) and prostate cancer group. Statistical analysis was made by SPSS (Statistical Package for Social Sciences) 12.0.1 for Windows. RESULTS: After histological examination, prostate cancer was detected in 20.7% of patients (n=25). Prostate cancer was found in 24.6% of patients with a total prostate volume of less than 60 cm3 and only in 8.2% of patients with a total prostate volume greater than 60 cm3 (P=0.026). Prostate cancer was found in 27.1% of patients with transition zone volume smaller than 30 cm3 and only in 7.5% of patients with transition zone volume greater than 30 cm3 (P=0.007). A statistically significant difference was found when patients were divided into the groups according to transition zone index: when transition zone index was lower than 0.45, prostate cancer was detected in 37.1% of patients, and when transition zone index was higher than 0.45, prostate cancer was observed in 9.1% of patients (P=0.001). The possibility to detect prostate cancer was 5.9 times higher in patients with transition zone index lower than 0.45. CONCLUSIONS: Prostate cancer detection rate by first sextant prostate biopsy in patients with elevated prostate-specific antigen level and/or pathological digital rectal examination was higher when total prostate volume was less than 60 cm3, transition zone was less than 30 cm3, and transition zone index was less than 0.45.

[Importance of repeat laterally directed sextant prostate biopsy for detection of prostate cancer in high-risk patients]. / Pakartotiniu krastiniu sekstantiniu prostatos biopsiju reiksme nustatant prostatos vezi padidejusios rizikos pacientams.

UNLABELLED: Our purpose was to evaluate the relevance of repeat laterally directed sextant prostate biopsy for detection of prostate cancer in high-risk patients. MATERIAL AND METHODS: Our study included 195 men at high risk for prostate cancer (elevated prostate-specific antigen level and/or abnormal prostate detected by digital rectal examination). We consulted the patients in outpatient department of Kaunas University of Medicine Hospital during 2003-2007. We performed transrectal ultrasound-guided laterally directed sextant prostate biopsy in every patient. For the patients with benign histological findings and increased risk of prostate cancer, laterally directed sextant biopsies were repeated. RESULTS: Prostate cancer was detected in 30.3% of patients (59/195) on the first prostate biopsy, in 13.1% (11/84) on the second prostate biopsy, in 10.3% (4/39) on the third, and in 7.7% (1/13) on the forth biopsy. After all biopsies, prostate cancer was detected in 38.5% (75/195) of patients, and it differed significantly from the percentage of prostate cancer cases detected on the first biopsy (30.3%, P=0.04). We detected 78.7% (59/75) of all prostate cancer cases by the first laterally directed sextant prostate biopsy. The rest 21.3% (16/75) of cases we detected by repeat biopsies. The second laterally directed sextant prostate biopsy revealed additional 14.6% (n=11) of prostate cancer cases and increased the detection of prostate cancer to 93.3% (70/75). At the time of the first prostate biopsy, prostate cancer was diagnosed most frequently when patients had both risk factors: elevated prostate-specific antigen level and abnormal digital prostate examination; prostate cancer was diagnosed in 45.3% of these patients. The odds ratio to detect prostate cancer by the first biopsy in patients with elevated prostate-specific antigen level and abnormal digital prostate examination was 3.7, and odds ratio to detect prostate cancer by repeat biopsies was 4.7. CONCLUSIONS: Repeat ultrasound-guided laterally directed sextant prostate biopsies reveal more cases of prostate cancer as compared to the first prostate biopsy. The majority of prostate cancer cases (93.3%) are detected by the first and second laterally directed sextant prostate biopsies. After the first negative prostate biopsy, we recommend to repeat prostate biopsy in high-risk patients.

Long-Term Oncological Outcomes for Young Men Undergoing Radical Prostatectomy for Localized Prostate Cancer.

Aim. The aim of this study was to describe PCa characteristics and long-term outcomes in young men aged ≤55 years after radical prostatectomy (RP) and to compare them with older men cohort. Methods. Among 2,200 patients who underwent RP for clinically localized PCa at our centre between 2001 and 2015, 277 (10.3%) men aged ≤55 years were identified. All preoperative and pathological parameters were compared between groups. Biochemical progression free survival (BPFS) and disease progression free survival (DPFS) were assessed at 5 and 10 years. Results. Men aged ≤55 years had similar pathological tumor characteristics and biochemical recurrence rate (BCR) compared to their older counterparts. Disease progression rate 2.5% versus 0.4% was higher in older patients (p = 0.026). BPFS rate was not different in both study groups. Estimated 10-year DPFS was 98.8% in younger men compared to 89.2% in their older counterparts (p = 0.031). Multivariate Cox regression showed that Gleason score lymph-nodes and surgical margins status were significant predictors for disease progression. Conclusions. In our cohort, men aged ≤55 years had similar pathological PCa characteristics and BCR rate in comparison with older men. RP can be performed with excellent long-term DPFS results in men with localized PCa at ≤55 years of age.

Influence of catheter on urinary flow during urodynamic pressure-flow study in men with symptomatic benign prostatic hyperplasia.

UNLABELLED: Value of urodynamic pressure-flow studies in evaluation of bladder outlet obstruction has been recognized. Voiding during these studies is influenced by transurethral catheter, which is used for measurement of vesical pressure. We have investigated the influence of 7 F (2.3 mm) catheter on flow rate during pressure-flow study as a potential cause of misclassification. PATIENTS AND METHODS: Data of free urinary flow and pressure flow from 111 men with symptomatic benign prostatic hyperplasia were analyzed. Inclusion criteria for analysis: age over 45 years, total International Prostate Symptom Score over 8, maximum flow rate in range of 4-20 ml/s, total voided volume of 100 ml or greater. RESULTS: Of all patients, means of maximum free and pressure-flow rate were 9.8 and 9.0 ml/s (p=0.01) with mean voided volume 199 and 212 ml (p=0.03) respectively. Maximum flow rate decreased in 56.8%, increased in 41.4% and was stable in 1.8% of cases. The difference ranged from -8.5 to +10.2 ml/s ('+' is indicated when maximum rate of free flow is higher). In the group of obstructed subjects mean maximum flow rates were respectively 8.8 ml/s and 7.9 ml/s (p=0.01). There was no significant difference in maximum flow rate within the group of unobstructed/equivocal subjects. More pronounced mean 1.3 ml/s difference in maximum flow rate was observed also in subgroup of patients with prostate volumes over 60 cc (p=0.01). CONCLUSIONS: Catheter of 7 F (2.3 mm) generally slightly diminishes maximum flow rate. Overdiagnosis of obstruction is more likely if considering the effect of catheter and vesical pressure. Misclassification of subject is possible in case of mild obstruction so such cases should be interpreted with caution. In the case of big difference in maximum flow rate it is necessary to take into account the free flow.

Evaluation of D'Amico criteria for low-risk prostate cancer.

OBJECTIVE: The aim of the study was to identify the risk of unfavourable disease (≥ pT3 and/or Gleason score ≥ 7) in radical prostatectomy (RP) specimens and biochemical progression-free survival (BPFS) after RP in patients with low-risk prostate cancer detected by D'Amico criteria before surgery. MATERIAL AND METHODS: Between 2004 and 2007, 690 men underwent prostate biopsy and RP at a single university hospital. Of those, 248 patients (35.9%) had low-risk prostate cancer criteria. The endpoints of the study were detection of low-risk (pT2 and Gleason score ≤ 6) or unfavourable (≥ pT3 and/or Gleason score ≥ 7) prostate cancer, and BPFS. The risk of progression was analysed using multivariate Cox regression model and BPFS was established using Kaplan-Meier analysis. RESULTS: The median follow-up was 60 months (1-112 months). pT3 was detected in 14.1%, and Gleason score ≥ 7 in 32.7% of patients. Unfavourable prostate cancer was detected in 37.5% of patients. Overall biochemical relapse rate was 13.6%. The estimated probability of 3-, 5- and 8-year BPFS for all study patients was 90.6%, 88.1% and 77.9%, respectively. Eight-year BPFS was 83.3% for low-risk prostate cancer and 68.2% for unfavourable prostate cancer (p = 0.007). Positive surgical margins (p = 0.0001) and postoperative Gleason score (p = 0.023) were the most significant predictors of biochemical relapse in Cox regression analysis. CONCLUSIONS: The D'Amico criteria may underestimate potentially aggressive prostate cancer in up to 37.5% of patients. Consequently, caution is recommended when the decision concerning the treatment modality is based on D'Amico criteria alone.

Independent predictors of biochemical recurrence after radical prostatectomy: a single center experience.

INTRODUCTION: The aim of study was to establish pretreatment and postoperative factors which could predict the early biochemical recurrence after radical prostatectomy. MATERIALS AND METHOD: 754 patients had undergone radical prostatectomy since January 2002 to December 2008 in our department and were included in this prospective study. Exclusion criteria were: neoadjuvant or adjuvant treatment (radiation or hormonal treatment) and N+. Following parameters were evaluated: age, PSA at time of biopsy, time period from biopsy to operation, biopsy and postoperative Gleason score, stage, high grade intraepithelial neoplasias, perineural invasion. Biochemical recurrence was detected if PSA value after radical prostatectomy was ≥0.2 ng/ml. All factors likely to be predictive were evaluated by univariate analysis (Log-rank test). Multivariate analysis using Cox model was completed for all factors with p value <0.1 at univariate analysis. RESULTS: Final analysis was done using data of 496 patients. We detected 53 (10.7%) biochemical recurrences. Calculated actuarial biochemical recurrence free survival reached 64%. Multivariate analysis highlighted that PSA >10 ng/ml (HR 2.45, p = 0.008), pathological stage ≥pT3 (HR 2.371, p = 0.02), postoperative Gleason score ≥7 (HR 2.149, p = 0.049), positive surgical margins (HR 2.482, p = 0.014) and absence of high grade intraepithelial neoplasia in removed prostate (HR 0.358, p = 0.006) are independent factors influencing biochemical recurrence after radical prostatectomy. CONCLUSION: Patients with higher PSA, locally advanced disease, positive surgical margins, and Gleason score ≥7 are at the highest risk for biochemical recurrence.

Importance of prostate volume and urinary flow rate in prediction of bladder outlet obstruction in men with symptomatic benign prostatic hyperplasia.

OBJECTIVES: To predict bladder outlet obstruction with parameters of non-invasive investigations for patients with symptomatic benign prostatic hyperplasia. PATIENTS AND METHODS: A sample of 122 men with moderate to severe lower urinary tract symptoms suggestive of benign prostatic hyperplasia was selected. Transrectal prostate ultrasound, free flow measurement, and transabdominal ultrasound for residual urine were carried out together with digital rectal examination for all patients. All patients underwent urodynamic pressure/flow test. Two groups of obstructed (91 patient) and equivocal/unobstructed (31 patient) were analyzed. Probabilistic model based on logistic regression was developed for prediction of obstruction. RESULTS: Various parameters were compared in obstructed and non-obstructed/equivocal groups, highlighting important parameters for obstruction. Correlation analysis indicates higher obstruction dependence on average and peak flow rates and lower dependence on total prostate and transition zone volumes, transition zone index. Binary logistic regression model suggests that average flow rate combined with total prostate volume is the best predictor of obstruction (83% of correct predictions; PPV = 92%; NPV = 52%) in the analyzed sample. The analyzed model suggests that peak flow rate could also be almost equally important parameter instead of average flow rate. CONCLUSIONS: The study suggests that average/peak flow rate combined with total prostate volume can be used for prediction of obstruction. The developed probabilistic model helps to determine patients who need invasive urodynamic testing for decision on surgical treatment.

[The significance of ultrasound examination in the assessment of kidney tumors: TNM criteria and stages]. / Ultragarsinio tyrimo reiksme vertinant inkstu naviku TNM kriterijus ir stadijas.

Ultrasound (US) examination was performed for 144 patients, operated with kidney tumors. For 13 (9.03%) patients 1 disease stage was determined. For 12 patients first disease stage was certified during operation and by histological examination after operation. For 1 patient, during histological examination, II stage was certified. II stage histologically was certified for 62 patients. It is 43.06% of all examined patients. By US examination II stage was suspected for 72 patients (50.0%), but after operation and histological examination, for 10 patients was certified III stage. II stage by US examination, was determined for 58 (40.28%) patients, but after operation and histological examination for 5 patients was certified II stage.

[Effectivity of phytotherapeutic agent prostavit for the treatment of benign prostate hyperplasia]. / Fitoterapinio preparato prostavito efektyvumas gydant gerybine prostatos hiperplazija.

Benign prostate hyperplasion's treatment with phytotherapic agent Prostavit and its results are described. Twenty patients who took Prostavit for 8 weeks were managed and treated. No patients were treated with placebo. Subjective and objective improvement was noticed with Prostavit, starting 6th week. Worsening of symptoms or allergical reaction was not noticed in all patients during this period.

[Penis deviation correction using Schröder's method and patients' postoperative quality of life]. / Varpos deviacijos korekcija pagal Srioderi (Schröder) ir pacientu pooperacinio gyvenimo kokybe.

Most frequent methods of penis deviation operative treatment are penis corporoplastics after Schröder and Nesbit. The penis corporoplastics can be followed by early complications (bleeding from the penis, recrudescent deviation due to suture cut-out, reduced or extinct sensitivity of the penis head as a result of n. dorsalis penis injury, etc.) or tardy ones (scarring phymosis, recrudescent deviation due to the scar, etc.). The objective of the study is to assess the quality of the patients' life after the operation (penis corporoplastics after Schröder) and any possible post-operative complications. The medical documentation of twelve patients, who were operated in the aforesaid manner at Kaunas 2(nd) Clinical Hospital and Kaunas Clinics of General Medical Practice in 1994-2001, was checked. Before the operation all the patients had penis deviation diagnosed (two ventral, two lateral and five mixed) resulting from congenital penis curvature. The indication for the operation of all the patients was aggravated intercourse. None of the patients showed early post-operative complications. When the patients were checked 6 months and 1 year later there were no tardy post-operative complications, either. All the patients were satisfied with the quality of life after the operation - there was no deviation, the erection and intercourse were normal. Penis corporoplastics after Schröder is a proper method to be used for correction of inherent penis deviations.

[Percutaneous nephrostomy at the Second Kaunas Clinical Hospital]. / Perkutanine nefrostomija Kauno 2-ojoje klinikineje ligonineje.

From 1996 to 2000 in urology department of 2(nd) Kaunas Clinical Hospital, 343 percutaneous interventions were performed, 250 of which was percutaneous nephrostomy. Urinary flowing was disturbed to 171 patients with urinary obstruction and 79 with malignant tumor. Death related to operation was not noticed in all patients. One of the patient had undergone surgery. PCN was successfully performed in 97.5% of all the cases.