Comparison of prostate cancer detection rates between the Vienna nomogram and the 10-core biopsy protocol

2019 ◽  
Vol 87 (3) ◽  
pp. 155-159
Author(s):  
Ersan Arda ◽  
Zafer Demir ◽  
Ilkan Yuksel ◽  
Mete Cek

Objective: To compare the Vienna nomogram and the 10-core prostate biopsy protocol regarding whether there is superiority in prostate cancer detection. Methods: Between January and December 2012, a total of 215 patients applying to our outpatient clinic with lower urinary tract symptoms were evaluated, prospectively. Patients with a prostate-specific antigen level of 2.5–10 ng/mL and/or suspicious digital rectal examination were included in the study. Exclusion criteria were determined as recent pelvic radiotherapy, lower urinary tract surgery, history of acute urinary retention, or indwelling urinary catheter. Biopsies were taken systematically with at least 10 cores considering prostate volume and patient age. According to Vienna nomogram, in patients requiring 6- or 8-core biopsies, tissue sampling was completed to 10 cores (our standard protocol), whereas in patients requiring more than 10 cores additional tissue sampling was performed. Results: After the determination of inclusion/exclusion criteria, 170 patients were enrolled in our study. The median (min–max) age, prostate-specific antigen value, and prostate volume were 65 (48–86) years, 7.6 ng/dL (2.5–10), and 55 cc (17–150), respectively. Prostate cancer was detected in 49 (28.8%) patients with transrectal ultrasound–guided prostate biopsy according to the Vienna nomogram. We found that our standard 10-core biopsy protocol would have diagnosed prostate cancer in 46 (27.1%) patients in the same study group showing no statistically significant difference (p > 0.005). Conclusion: The findings of this study suggest that considering cancer detection rates no statistically significant differences were found between both methods. Further prospective research in this aspect is needed to define the ultimate prostate biopsy protocol.

2013 ◽  
Vol 4 (2) ◽  
pp. 100 ◽  
Author(s):  
Mohamed Amine Jradi ◽  
Mohamed Dridi ◽  
Mourad Teyeb ◽  
Mokhtar Ould Sidi Mohamed ◽  
Ramzi Khiary ◽  
...  

Introduction: To increase the detection rate of prostate cancer inrecent years, we examined the increase in the number of corestaken at initial prostate biopsy. We hypothesized that an increasingnumber of cores may undermine the accuracy of models predictingthe presence of prostate cancer at initial biopsy in patientssubmitted to 20-core initial biopsy.Methods: A total of 232 consecutive patients with prostatespecificantigen (PSA) between 4 and 20 ng/mL and/or abnormaldigital rectal examination (DRE) underwent 12-core prostate biopsyprotocol (group 1) or 20-core prostate biopsy protocol (group 2).The patients were divided into subgroups according to the resultsof their serum PSA and prostate volume. We evaluated the cancerdetection rate overall and in each subgroup. Clinical datawere analyzed using chi-square analysis and the unpaired t-testor 1-way ANOVA with significance considered at 0.05.Results: The 2 groups of patients were not significantly different withregard to parameters (age, abnormal DRE and serum PSA), althoughmedian prostate volume in group 1 (57.76 ± 26.94 cc) were slightergreater than in group 2. Cancer detection rate for patients submittedto 20 prostate biopsy was higher than patients submitted to 12prostate biopsy (35.2% vs. 25%, p = 0.095). Breakdown to PSAlevel showed a benefit to 20 prostate biopsy for PSA <6 ng/mL (37.1%vs. 12.9%, p = 0.005). Stratifying results by prostate volume, wefound that the improvement of cancer detection rate with 20 prostatebiopsy was significant in patients with a prostate volume greaterthan 60 cc (55% in 20 prostate biopsy vs. 11.3% p < 0.05). Morbidityrates were identical in groups 1 and 2 with no statistically significantdifference. There appeared to be no greater risk of infectionand bleeding with 20 prostate biopsy protocol.Conclusion: The 20-core biopsy protocol was more efficient thanthe 12-core biopsy protocol, especially in patients with prostatespecific antigen <6 ng/mL and prostate volume greater than 60 cc.Introduction : Pour augmenter le taux de détection du cancer de laprostate dans un avenir rapproché, nous avons examiné l’incidenced’une hausse du nombre de carottes prélevées lors de la biopsieprostatique initiale. Notre hypothèse était qu’en raison du nombreaccru de prélèvements, la biopsie à 20 carottes pouvait réduirel’exactitude des modèles de dépistage du cancer de la prostate à labiopsie initiale.Méthodologie : Au total, 232 patients consécutifs avec des tauxd’antigène prostatique spécifique (APS) situés entre 4 et 20 ng/mLet/ou des anomalies au toucher rectal ont subi une biopsie prostatiqueà 12 (groupe 1) ou à 20 carottes (groupe 2). Les patients ontété répartis en sous-groupes en fonction de leurs taux sériques d’APSet de leur volume prostatique. Nous avons évalué le taux de dépistagedu cancer de façon globale et par sous-groupes. Les données cli -niques ont été analysées par la méthode du chi carré et du test tpour échantillons non appariés ou par analyse unilatérale de lavariance (ANOVA), avec un seuil de signification de 0,05.Résultats : On n’a noté aucune différence significative entre lesdeux groupes quant aux paramètres (âge, anomalie au toucher rectalet taux sériques d’APS), malgré que le volume prostatique médianait été légèrement supérieur dans le groupe 1 (57,76 ± 26,94 mL)par rapport au groupe 2. Le taux de dépistage du cancer avec labiopsie prostatique à 20 carottes était plus élevé que le taux obtenuavec la biopsie à 12 carottes (35,2 % vs 25 %, p = 0,095). La répartitiondes patients en fonction des taux d’APS a fait ressortir unavantage pour la biopsie à 20 carottes lorsque les taux d’APS étaientinférieurs à 6 ng/mL (37,1 % vs 12,9 %, p = 0,005). La stratificationdes données selon le volume de la prostate a montré que lahausse des taux de dépistage du cancer associée à la biopsie prostatiqueà 20 carottes était significative lorsque le volume prostatiquedépassait 60 mL (55 % pour la biopsie à 20 carottes vs 11,3 %,p < 0,05). Les taux de morbidité étaient semblables dans les deuxgroupes, la différence n’étant pas significative sur le plan statistique.La biopsie prostatique à 20 carottes ne semblait pas associéeà un risque plus élevé d’infection et d’hémorragie.Conclusion : La biopsie à 20 carottes était plus efficace que la biopsieà 12 carottes, surtout chez les patients dont le taux d’APS était


2018 ◽  
Vol 90 (3) ◽  
pp. 181-183 ◽  
Author(s):  
Cem Yucel ◽  
Salih Budak

Objective: We investigated the relationship between large prostate calculi and prostate cancer (PCa) risk. Materials and methods: The medical records of 340 patients who received a prostate biopsy at our institution between January 2015 and August 2016 were reviewed retrospectively. Of the patients, 82 had large prostatic calculi visualised by transrectal ultrasonography and 88 did not or had scarce prostatic calculi. We divided these patients into two groups: patients with large prostatic calculi (group 1) and patients without prostatic calculi (group 2). These groups were compared according to age, total prostate specific antigen (PSA) level, prostate volume, and final pathological diagnosis.Results: The mean age of all patients was 61.4 ± 6.2 years, the mean total PSA was 12.3 ± 17.4 ng/mL, the mean prostate volume was 41.7 ± 17.6 mL, and the overall cancer detection rate was 31.5%. The cancer detection rates were 41.3% and 22.6% in groups 1 and 2, respectively (p = 0.018). No significant differences in mean age, mean total PSA, or mean prostate volume were observed between the groups. Conclusions: In the present study, large prostatic calculi were associated with PCa. However, more study is needed to examine the relationship between large prostatic calculi and PCa in more detail. The effects of particularly large prostate calculi in the development of PCa will be a necessary focus of future research.


2016 ◽  
Vol 43 (6) ◽  
pp. 430-437
Author(s):  
GUSTAVO DAVID LUDWIG ◽  
HENRIQUE PERES ROCHA ◽  
LÚCIO JOSÉ BOTELHO ◽  
MAIARA BRUSCO FREITAS

ABSTRACT Objective: to develop a predictive model to estimate the probability of prostate cancer prior to biopsy. Methods: from September 2009 to January 2014, 445 men underwent prostate biopsy in a radiology service. We excluded from the study patients with diseases that could compromise the data analysis, who had undergone prostatic resection or used 5-alpha-reductase inhibitors. Thus, we selected 412 patients. Variables included in the model were age, prostate specific antigen (PSA), digital rectal examination, prostate volume and abnormal sonographic findings. We constructed Receiver Operating Characteristic (ROC) curves and calculated the areas under the curve, as well as the model's Positive Predictive Value (PPV) . Results: of the 412 men, 155 (37.62%) had prostate cancer (PC). The mean age was 63.8 years and the median PSA was 7.22ng/ml. In addition, 21.6% and 20.6% of patients had abnormalities on digital rectal examination and image suggestive of cancer by ultrasound, respectively. The median prostate volume and PSA density were 45.15cm3 and 0.15ng/ml/cm3, respectively. Univariate and multivariate analyses showed that only five studied risk factors are predictors of PC in the study (p<0.05). The PSA density was excluded from the model (p=0.314). The area under the ROC curve for PC prediction was 0.86. The PPV was 48.08% for 95%sensitivity and 52.37% for 90% sensitivity. Conclusion: the results indicate that clinical, laboratory and ultrasound data, besides easily obtained, can better stratify the risk of patients undergoing prostate biopsy.


Sign in / Sign up

Export Citation Format

Share Document