Displaying publications 1 - 20 of 26 in total

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  1. Tan WK, Tan MY, Tan HM, Pathmanathan R, Tan WP
    Urology, 2016 Apr;90:e7-8.
    PMID: 26773348 DOI: 10.1016/j.urology.2015.12.046
    A 39-year-old man presented with painless scrotal swelling for 2 months. He denied any asbestos exposure but worked with wall and ceiling plaster. Physical exam revealed a large right scrotum which transilluminated. Scrotal ultrasonography revealed a large right hydrocele and a polypoidal mass along the anterior wall of the scrotum. Magnetic resonance imaging of the abdomen and computed tomography of the chest showed no metastases. He underwent a right inguinal scrotal exploration and wide excision of tunica vaginalis and a partial epididymectomy. Pathology revealed well-differentiated papillary mesothelioma of the tunica vaginalis. The patient had an uneventful recovery.
  2. Tan HM, Moh CL, Mendoza JB, Gana T, Albano GJ, de la Cruz R, et al.
    Urology, 2000 Oct 1;56(4):635-40.
    PMID: 11018621 DOI: 10.1016/s0090-4295(00)00688-9
    OBJECTIVES:
    To evaluate the efficacy, safety, and tolerability of oral sildenafil in Asian men with erectile dysfunction of various causes (organic, psychogenic, or mixed) and of more than 6 months' duration.

    METHODS:
    In this double-blind, parallel-group trial conducted at eight centers in Malaysia, the Philippines, and Singapore, 254 men, 26 to 78 years old, were randomized to 12 weeks of sildenafil or placebo taken as needed 1 hour before anticipated sexual activity. Initially, the sildenafil (n = 127) or matching placebo (n = 127) dose was 50 mg but could be increased to 100 mg or decreased to 25 mg because of a lack of efficacy or intolerance, respectively. Efficacy was assessed by the 15-question International Index of Erectile Function, patients' event logs of sexual activity, and a global efficacy question about erections.

    RESULTS:
    The two primary efficacy variables relating to achievement and maintenance of an erection sufficient for sexual intercourse, as assessed by the mean scores for International Index of Erectile Function question 3 (4.22 versus 2.59) and question 4 (4.15 versus 2.41), were both significantly higher with sildenafil than with placebo (P <0.0001). In addition, the five separate International Index of Erectile Function domains of sexual function, the percentage of successful intercourse attempts, and the global efficacy assessment of erections revealed significantly greater treatment effects in favor of sildenafil (P <0.0001 versus placebo for all variables). Treatment-related adverse events occurred in 22.8% of patients who received sildenafil and in 10.2% of those who received placebo.

    CONCLUSIONS:
    Sildenafil is an effective and well-tolerated treatment for Asian men with erectile dysfunction of broad-spectrum etiology.
  3. Taib F, Mohamad N, Mohamed Daud MA, Hassan A, Singh MS, Nasir A
    Urology, 2012 Oct;80(4):931-3.
    PMID: 22854139 DOI: 10.1016/j.urology.2012.05.021
    Fibrosarcoma is rare in the pediatric age group. It generally involves the extremities and the trunk but rarely involves the genital area. We report a case of a large fungating infantile fibrosarcoma of the penis in a 2-year-old Malay boy. Partial recovery of the penile structure was achieved after chemotherapy. The difficulty in managing the social and surgical aspect of this case is discussed in our report. To the best of our knowledge, this is the first case report of infantile fibrosarcoma involving the penis in an Asian region.
  4. Sundaram BM, Kalidasan G, Hemal AK
    Urology, 2006 May;67(5):970-3.
    PMID: 16698357
    To describe a technique of robotic repair of vesicovaginal fistula (VVF) and present our experience with 5 such patients.
  5. Patil NN, Mottrie A, Sundaram B, Patel VR
    Urology, 2008 Jul;72(1):47-50; discussion 50.
    PMID: 18384858 DOI: 10.1016/j.urology.2007.12.097
    To report the collective experience of three multinational institutions with the use of robotics to evaluate and treat complex distal ureteral obstruction.
  6. Ong TA, Yaakup NA, Sivalingam S, Razack AH
    Urology, 2013 Apr;81(4):904-7.
    PMID: 23537760 DOI: 10.1016/j.urology.2012.10.077
    To describe a novel technique for localizing small testicular mass during testicular-sparing surgery (TSS).
  7. Ong TA, Khong SY, Ng KL, Ting JR, Kamal N, Yeoh WS, et al.
    Urology, 2015 Sep;86(3):487-91.
    PMID: 26142713 DOI: 10.1016/j.urology.2015.06.022
    OBJECTIVE: To evaluate the effectiveness of pelvic floor muscle exercises (PFMEs) performed with the new biofeedback Vibrance Kegel Device (VKD), compared to PFMEs alone, in treating stress urinary incontinence (SUI).

    MATERIALS AND METHODS: This was a pilot prospective, randomized trial of women aged ≥18 years with SUI symptoms who underwent PFMEs at University Malaya Medical Centre from October 2011 to October 2013. The patients were randomly divided into two groups: control (PFMEs alone) and VKD (PFMEs with VKD biofeedback). The patients underwent 16 weeks of pelvic floor training, during which they were assessed using Australian pelvic floor questionnaires and modified Oxford scales for pelvic floor muscle strength at week 0, 4, and 16.

    RESULTS: Forty patients were recruited (control 19, VKD 21). Three patients in the control group dropped out during week 16 training, whereas the VKD group had no dropouts. The VKD group reported significantly earlier improvement in SUI scores, as assessed by the Australian pelvic floor questionnaires (P = .035) at week 4. However, there was no significant difference between the groups' SUI scores at week 16. Pelvic floor muscle strength was significantly better in the VKD group at week 4 (P = .025) and week 16 (P = 0.001). The subjective cure rate was similar in both groups at week 16 (62.5% for control and 61.9% for VKD) (P = 0.742).

    CONCLUSION: Using the VKD resulted in significant early improvement in SUI scores, and pelvic muscle strength had improved significantly by the end of the study. The VKD proved useful as an adjunct for pelvic floor training.

  8. Nicolosi A, Moreira ED, Shirai M, Bin Mohd Tambi MI, Glasser DB
    Urology, 2003 Jan;61(1):201-6.
    PMID: 12559296 DOI: 10.1016/s0090-4295(02)02102-7
    OBJECTIVES:
    To measure the prevalence of erectile dysfunction (ED) in community-based populations in Brazil, Italy, Japan, and Malaysia and to study its association with the demographic characteristics, medical conditions, and health-related behavior.

    METHODS:
    In each country, a random sample of approximately 600 men aged 40 to 70 years was interviewed using a standardized questionnaire. All the data were self-reported. ED was assessed by the participants' "ability to attain and maintain an erection satisfactory for sexual intercourse," and the men were classified as not having ED if they answered "always" and as having mild, moderate, or complete ED if they answered "usually," "sometimes," or "never," respectively.

    RESULTS:
    The age-adjusted prevalence of moderate or complete ED was 34% in Japan, 22% in Malaysia, 17% in Italy, and 15% in Brazil. The overall age-specific prevalence of moderate or complete ED was 9% for men aged 40 to 44 years, 12% for 45 to 49 years, 18% for 50 to 54 years, 29% for 55 to 59 years, 38% for 60 to 64 years, and 54% for those 65 to 70 years. The increased risk of ED was associated with diabetes, heart disease, lower urinary tract symptoms, heavy smoking, and depression and increased by 10% per year of age. It was inversely associated with education, physical activity, and alcohol drinking.

    CONCLUSIONS:
    ED is an international problem, the prevalence and severity of which increases with age. Despite national variations in prevalence, uniform associations were found between ED and medical conditions and lifestyle habits.
  9. Low BY, Liong ML, Yuen KH, Chong WL, Chee C, Leong WS, et al.
    Urology, 2006 Oct;68(4):751-8.
    PMID: 17070347
    To determine the prevalence, severity, and quality-of-life (QOL) impact of female lower urinary tract symptoms (FLUTS); to determine the patterns, reasons, and factors contributing to the women's treatment-seeking behavior; and to describe the relationship between the social demographic characteristics and FLUTS.
  10. Lim R, Liong ML, Lim KK, Leong WS, Yuen KH
    Urology, 2019 Nov;133:91-95.
    PMID: 31415780 DOI: 10.1016/j.urology.2019.08.004
    OBJECTIVE: To estimate the minimum clinically important difference (MCID) of the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) and the International Consultation on Incontinence Questionnaire-Lower Urinary Tract Symptoms Quality of Life (ICIQ-LUTSqol) using both anchor-based and distribution-based methods for women with stress urinary incontinence undergoing nonsurgical treatment.

    MATERIALS AND METHODS: Data from a randomized clinical trial evaluating efficacy of a nonsurgical intervention in women with stress urinary incontinence were used for analyses. The overall score of ICIQ-UI SF ranges from 0 to 21, with greater values indicating increased severity. The ICIQ-LUTSqol ranges from 19 to 76, with greater values indicating increased impact on quality of life. Instruments used in the anchor-based method were the Patient Global Impression of Improvement, patient satisfaction, 1-hour pad test and the incontinence episode frequency. The distribution-based method used an effect size of 0.5 standard deviation. Triangulation of findings was used to converge on a single value of MCID.

    RESULTS: At 12-month post-treatment, 106 (88.3%) participants completed the follow-up and were included in the analysis. Anchor-based MCIDs of the ICIQ-UI SF were between 3.4 and 4.4, while the distribution-based MCID was 1.7. Anchor-based MCIDs of the ICIQ-LUTSqol were between 4.8 and 6.9, while the distribution-based MCID was 5.2. Triangulation of findings showed that MCIDs of 4 for ICIQ-UI SF and 6 for ICIQ-LUTSqol were the most appropriate.

    CONCLUSION: For women undergoing nonsurgical treatments for incontinence, reductions of 4 and 6 points in ICIQ-UI SF and ICIQ-LUTSqol, respectively are perceived as clinically meaningful.

  11. Lim R, Liong ML, Leong WS, Lau YK, Khan NAK, Yuen KH
    Urology, 2018 Feb;112:38-45.
    PMID: 29107131 DOI: 10.1016/j.urology.2017.10.019
    OBJECTIVE: To assess the impact of stress urinary incontinence (SUI) on individual components of quality of life (QoL) using both condition-specific and generic questionnaires, and to compare the results of the 2 instruments with a control group.

    METHODS: Women with or without SUI aged ≥21 years old were recruited. Subjects completed the International Consultation of Incontinence-Urinary Incontinence Short Form (ICIQ-UI-SF), International Consultation of Incontinence-Lower Urinary Tract Symptoms Quality of Life (ICIQ-LUTSqol), and EQ-5D questionnaires.

    RESULTS: A total of 120 women with SUI and 145 controls participated. The ICIQ-LUTSqol total score (mean ± standard deviation) was significantly higher in the SUI group (38.96 ± 10.28) compared with the control group (20.78 ± 2.73) (P 

  12. Lim R, Liong ML, Leong WS, Khan NAK, Yuen KH
    Urology, 2018 Feb;112:46-51.
    PMID: 29146219 DOI: 10.1016/j.urology.2017.10.037
    OBJECTIVE: To evaluate the correlation between sexual function of couples with and without stress urinary incontinence (SUI) partners, and to identify predictors of poor sexual function.

    MATERIALS AND METHODS: A cross-sectional survey was conducted involving sexually active women with or without SUI aged at least 21 years old, and their respective partners. Both partners completed the Golombok Rust Inventory of Sexual Satisfaction (GRISS), a 28-item multidimensional measure with separate forms for male and female designed to assess sexual satisfaction of both partners. Spearman rank correlation coefficient was used to analyze bivariate association, whereas multiple regression analysis was used to identify predictors for overall sexual function as measured using GRISS score.

    RESULTS: Sixty-six couples with SUI partners and 95 couples with continent partners were recruited. Overall GRISS scores and thus sexual function of men and women were strongly correlated. The correlation coefficient was higher in couples with SUI partners (r = 0.702, P 

  13. Lim J, Rampal S, Razack AHA, Malek R, Sundram M, Nasuha NA, et al.
    Urology, 2018 Aug;118:145-151.
    PMID: 29746873 DOI: 10.1016/j.urology.2018.02.055
    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 

  14. Leong WS, Liong ML, Liong YV, Wu DB, Lee SW
    Urology, 2014 Jan;83(1):40-4.
    PMID: 24044912 DOI: 10.1016/j.urology.2013.08.004
    To determine the efficacy of a combination of simultaneous shock wave lithotripsy (SWL), hydration with controlled inversion therapy compared with SWL with hydration alone in patients with lower pole calyx stones.
  15. Lee SW, Liong ML, Yuen KH, Leong WS, Cheah PY, Khan NA, et al.
    Urology, 2008 Jan;71(1):79-84.
    PMID: 18242370 DOI: 10.1016/j.urology.2007.08.043
    OBJECTIVES: To examine the prevalence, characteristics, and impact of sexual dysfunction in our primary care referral population.
    METHODS: Participants seeking treatment for chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) were recruited from general urology clinics. The subjects completed the National Institutes of Health-Chronic Prostatitis Symptom Index, International Index of Erectile Function-5, and selected questions from the University of Washington Symptom Score. Additional information on demographics and medical and treatment history were also obtained. Sexual dysfunction was defined as self-reported erectile dysfunction (ED) or ejaculatory difficulty, or both.
    RESULTS: Of 296 participants with CP/CPPS, 214 (72.3%) reported sexual dysfunction. The National Institutes of Health-Chronic Prostatitis Symptom Index total score averaged 22.5 +/- 6.9 for participants with sexual dysfunction compared with 20.4 +/- 7.8 for participants who did not report sexual dysfunction (P = 0.03). Of the 214 participants with sexual dysfunction, 54 (25.0%) complained of ED only, 71 (33.4%) complained of ejaculatory difficulties only, and 89 (41.6%) complained of both ED and ejaculatory difficulties. Men reporting both ED and ejaculatory difficulty reported worse CP/CPPS symptoms (analysis of variance, P = 0.042) and worse quality of life (analysis of variance, P = 0.006) than men without sexual dysfunction.
    CONCLUSIONS: Sexual dysfunction was reported by almost three quarters of patients with CP/CPPS. Patients with CP/CPPS and sexual dysfunction experienced substantially worse symptoms, particularly worse quality of life, than other patients with CP/CPPS. Sexual dysfunction merits consideration as an important aspect of CP/CPPS and a potential outcome measure.

    Study site: general urology clinics
    in Penang
  16. Khor V, Arunasalam A, Azli S, Khairul-Asri MG, Fahmy O
    Urology, 2020 07;141:179-180.
    PMID: 32339556 DOI: 10.1016/j.urology.2020.04.070
    Matched MeSH terms: Urology*
  17. Hong YH, Dublin N, Razack AH, Mohd MA, Husain R
    Urology, 2012 Sep;80(3):529-34.
    PMID: 22578827 DOI: 10.1016/j.urology.2012.02.053
    To investigate the urinary metabolic excretion pattern among local stone formers given the great differences in the intrinsic and extrinsic risk factors as well as the urinary metabolic excretions compared with other populations.
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