Correlation between the total volume, transitional zone volume of the prostate, transitional prostate zone index and lower urinary tract symptoms (LUTS)

Franciosi, Mario; Koff, Walter José; Rhoden, Ernani Luı́s

doi:10.1007/s11255-006-9148-8

Cited by 18 publications

(8 citation statements)

References 27 publications

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“…A few studies have shown a positive and statistically significant correlation. [23][24][25] Wang et al 26 reported a correlation coefficient of 0.27 between the prostate volume and the IPSS in a Chinese survey, which is similar to the correlation found in this study. Conversely, no correlation was found between TPV, TZV and the prostate symptoms score evaluated by the IPSS in a study developed by Kaplan et al 27 The discrepancy is that these studies are likely the result of different study populations and methods.…”

Section: Discussionsupporting

confidence: 86%

Relationship between age and prostate size

Zhang¹,

Qian²,

Zhao³

et al. 2012

Asian J Androl

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In a community-based study, the relationship between age and human prostate size was investigated in a population of men between the ages of 40 and 70 years to determine the normal prostate increase curve equation. One thousand male volunteers were randomly recruited from the Shanghai community, and the length, width, height, volume of the transition zone (TZ) and the whole prostates were measured by transrectal ultrasound (TRUS). Each volunteer was evaluated by the International Prostate Symptom Score (IPSS). Among those who completed the examination, the mean prostate parameters were all positively associated with increased age. There were statistically significant differences between each age group (P<0.05). The mean transition zone volume (TZV) had a higher increase rate with age than the mean total prostate volume (TPV), indicating that the enlargement of the TZ contributed the most to the increase in TPV. While all prostate parameters were positively correlated with the IPSS, the strongest correlation was associated with the TZ length (TZL) and TZV. The growth curve equations for prostate width, height and length were also positively associated with increasing age.

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Section: Discussionsupporting

confidence: 86%

Relationship between age and prostate size

Zhang¹,

Qian²,

Zhao³

et al. 2012

Asian J Androl

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“…TZI (TZV/TPV) is a parameter that correlates significantly with evaluated parameters of BPH and may serve as a useful proxy for evaluating worsening obstruction. Several studies report that the TZI correlates not only with subjective voiding symptoms of patients but also with objective parameters such as Qmax [20]–[22]. In our study, IPSS correlated poorly with TZV and TZI, and there was no relationship in the multivariate regression test.…”

Section: Discussioncontrasting

confidence: 57%

Correlation of Prostatic Urethral Angle with the Severity of Urinary Symptom and Peak Flow Rate in Men with Small Prostate Volume

Kang¹,

Lee

Hah

et al. 2014

PLoS ONE

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PurposeTo evaluate the effects of prostatic anatomical factors on male lower urinary tract symptoms (LUTS) and the peak flow rate (Qmax) in patients with small prostate volume (PV).Materials and MethodsRecords were obtained from a prospectively maintained database of first-visit men with LUTS. Patients whose total PV (TPV) was greater than 30 mL were excluded; 444 patients were enrolled in the study. The TPV, transitional zone volume (TZV), transitional zone index (TZI), intravesical prostatic protrusion (IPP), and prostatic urethral angle (PUA) were measured by transrectal ultrasonography. LUTS were evaluated using the International Prostate Symptom Score (IPSS) and the Overactive Bladder Symptom Score (OABSS) questionnaires. Uroflowmetric measurements were also made.ResultsPUA (r = 0.269, P<0.001), TZV (r = 0.160, P<0.001), and TZI (r = 0.109, P = 0.022) significantly correlated with the IPSS. Qmax (r = −0.334, P<0.001) and OABSS (r = 0.211, P<0.001) correlated only with PUA. In a multivariate regression analysis, PUA and age were independently associated with IPSS, OABSS, and Qmax. For IPSS of 20 or greater, the area under the ROC curve (AUC) of PUA was 0.667 and the cut-off value was 43.7°. When Qmax was 10 mL/s or less, the AUC of PUA was 0.664 and the cut-off value was 43.5°.ConclusionsPUA has a significant association with symptom severity and Qmax among prostatic anatomical factors analyzed in men with LUTS and small PV. PUA should be considered as an important clinical factor in male LUTS management. Furthermore, the impact of PUA on response to medical treatment and disease progression needs to be investigated.

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“…Although prostate size may not correlate well with the severity of LUTS [12], it is an important predicting factor for the development of AUR in patients with symptomatic BPH and for the long-term outcome of patients who developed AUR. Roehrborn et al reported that for patients who suffer symptomatic BPH, prostate volume and serum PSA level were predictors of the risk of AUR and the need for BPH-related surgery in these patients [13,14].…”

Section: Discussionmentioning

confidence: 99%

Long-term outcome of patients with a successful trial without catheter, after treatment with an alpha-adrenergic receptor blocker for acute urinary retention caused by benign prostatic hyperplasia

Chan

Wong

et al. 2009

Int Urol Nephrol

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Although AR blockers increased the success rate of TWOC, approximately half of the patients in this study still required additional intervention within five years. By using appropriate selection criteria, such as a large prostate size (>50 ml) or high serum PSA level during AUR (>10 microg/l), patients who are at greater risk of TWOC failure can be identified, and earlier surgical intervention can be offered to them.

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Correlation between the total volume, transitional zone volume of the prostate, transitional prostate zone index and lower urinary tract symptoms (LUTS)

Cited by 18 publications

References 27 publications

Relationship between age and prostate size

Relationship between age and prostate size

Correlation of Prostatic Urethral Angle with the Severity of Urinary Symptom and Peak Flow Rate in Men with Small Prostate Volume

Long-term outcome of patients with a successful trial without catheter, after treatment with an alpha-adrenergic receptor blocker for acute urinary retention caused by benign prostatic hyperplasia

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