A Novel Calculator for Estimating Prostate Volume in Daily Urology Services

Lim J 1 , Rampal S 2 , Razack AHA 1 , Malek R 3 , Sundram M 4 , Nasuha NA 5 Show all authors , Ooi CC 6 , Ong TA 1 , Sothilingam S 7

Affiliations 

  • 1 Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
  • 2 Julius Center University of Malaya, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
  • 3 Department of Urology, Selayang Hospital, Selangor, Malaysia
  • 4 Department of Urology, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
  • 5 Department of Surgery, Raja Perempuan Zainab II Hospital, Kota Bahru, Kelantan, Malaysia
  • 6 Department of Urology, Selayang Hospital, Selangor, Malaysia; Department of Surgery, Melaka Hospital, Melaka, Malaysia
  • 7 Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. Electronic address: drselva88@gmail.com
Urology, 2018 Aug;118:145-151.
PMID: 29746873 DOI: 10.1016/j.urology.2018.02.055

Abstract

OBJECTIVES: To develop a simple prostate volume (PV) calculator that can aid in managing patients with lower urinary tract symptoms (LUTS) secondary to benign prostatic enlargement at daily urology services in developing Asian countries.

MATERIALS AND METHODS: We conducted a cross-sectional study of men aged above 40 years with no history of prostate cancer, prostate surgery, or 5α-reductase inhibitor treatment. Serum prostate-specific antigen (PSA) and total PV were measured in each subject. Potential sociodemographic and clinical variables including age, weight, comorbidities, and International Prostate Symptom Score (IPSS) were collected. Of 1034 subjects, 837 were used in building the PV calculator using regression analysis. The remaining 1/5 (n = 197) was used for model validation.

RESULTS: There were 1034 multiethnic Asian men (Chinese 52.9%, Malay 35.4%, and Indian 11.7%) with mean age of 60 ± 7.6 years. Average PV was 29.4 ± 13.0 mL while the overall mean of PSA was 1.7 ± 1.7 ng/mL. We identified age, IPSS, weight, and PSA (all P 

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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