The Long-Term Relationship between a Real Change in Prostate Volume and a Significant Change in Lower Urinary Tract Symptom Severity in Population-Based Men: The Krimpen Study

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Abstract

Objective: We used the database of a longitudinal community-based study to investigate whether real changes in prostate volume (PV) (ie, changes greater than the combination of intra- and interobserver variation of volume measurement) corresponded with significant changes in symptom severity. Methods: In a community-based study of men aged 50-78 yr, the International Prostate Symptom Score (IPSS) and PV were measured at baseline and at 4.2-yr follow-up. Of 1417 men, 864 completed both rounds. A significant change in IPSS was defined as a change of ≥ 4 points. A real change in PV was defined as a percent change of ≥ 26%, or an absolute change of ≥ 10 cc. Results: After 4.2 yr, about 20% of the men had experienced a significant increase in IPSS and 16-23% had a real increase in PV. The age-adjusted odds ratio for a significant increase in symptom severity, which contrasts men who have a real increase in PV and men who do not show such an increase, is 1.38 (95%CI, 1.05-1.85]. The age-adjusted odds ratio for a significant decrease in symptom severity, which contrasts men with a real increase in PV and those without such an increase, is 1.50 (95%CI, 1.11-2.85). Conclusions: Benign prostatic hyperplasia can be characterised as a progressive disease in a certain proportion of men older than 50 yr. Men with growing prostates are at a greater risk of symptomatic deterioration. Men who have prostates that do not grow significantly are more likely to improve symptomatically. © 2007 European Association of Urology.

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Bosch, J. L. H. R., Bangma, C. H., Groeneveld, F. P. M. J., & Bohnen, A. M. (2008). The Long-Term Relationship between a Real Change in Prostate Volume and a Significant Change in Lower Urinary Tract Symptom Severity in Population-Based Men: The Krimpen Study. European Urology, 53(4), 819–827. https://doi.org/10.1016/j.eururo.2007.08.042

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