Displaying publications 1 - 20 of 23 in total

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  1. Yap NY, Ng KL, Ong TA, Pailoor J, Gobe GC, Ooi CC, et al.
    Asian Pac J Cancer Prev, 2013;14(12):7497-500.
    PMID: 24460324
    BACKGROUND: This study concerns clinical characteristics and survival of renal cell carcinoma (RCC) patients in University Malaya Medical Centre (UMMC), as well as the prognostic significance of presenting symptoms.

    MATERIALS AND METHODS: The clinical characteristics, presenting symptoms and survival of RCC patients (n=151) treated at UMMC from 2003-2012 were analysed. Symptoms evaluated were macrohaematuria, flank pain, palpable abdominal mass, fever, lethargy, loss of weight, anaemia, elevated ALP, hypoalbuminemia and thrombocytosis. Univariate and multivariate Cox regression analyses were performed to determine the prognostic significance of these presenting symptoms. Kaplan Meier and log rank tests were employed for survival analysis.

    RESULTS: The 2002 TNM staging was a prognostic factor (p<0.001) but Fuhrman grading was not significantly correlated with survival (p=0.088). At presentation, 76.8% of the patients were symptomatic. Generally, symptomatic tumours had a worse survival prognosis compared to asymptomatic cases (p=0.009; HR 4.74). All symptoms significantly affect disease specific survival except frank haematuria and loin pain on univariate Cox regression analysis. On multivariate analysis adjusted for stage, only clinically palpable abdominal mass remained statistically significant (p=0.027). The mean tumour size of palpable abdominal masses, 9.5±4.3cm, was larger than non palpable masses, 5.3±2.7cm (p<0.001).

    CONCLUSIONS: This is the first report which includes survival information of RCC patients from Malaysia. Here the TNM stage and a palpable abdominal mass were independent predictors for survival. Further investigations using a multicentre cohort to analyse mortality and survival rates may aid in improving management of these patients.

  2. Sia, S.F., Dublin, N., Nurul, B., Wong, K.T.
    JUMMEC, 2006;9(2):18-21.
    MyJurnal
    We report a case of an 86 year old Chinese man who presented with a painless right testicular swelling that had persisted for one year. There was no history of maldescend or cryptorchid testes. Clinical and ultrasound examination revealed testicular tumour with two round masses within the right scrotal sac, with minimal fluid seen within the sac. Tumour markers were normal. He subsequently underwent a right inguinal orchidectomy under local anaesthesia as he had an underlying cardiac insufficiency. Histopathological examination revealed malignant Sertoli cell tumour. True Sertoli cell mesenchyme tumours constitute less than 1% of all testicular cancers.Current literature on histopathological and clinical features and treatment options are reviewed.
  3. Sia, S.F., Dublin, N.
    JUMMEC, 2006;9(2):22-23.
    MyJurnal
    Anomalies of the genitourinary tract occur in approximately 10% of the population and account for about one third of all congenital malformations in children (1). Congenital malformations involving the genitourinary system are major therapeutic challenges faced by the practising urologist.
  4. Shanggar, K., Ng, C.H., Razack, A.H., Dublin, N.
    JUMMEC, 2010;13(1):59-62.
    MyJurnal
    Malignant tumours of the scrotum are very rare. Several type of occupations have been identified as high risk for the development of SCC of scrotum e.g paraffin and shale oil workers (1), textile workers (2) etc. We report a rare case of SCC of scrotum. Search of our records in the Urology and Pathology departments of our Centre showed that this is the only case of SCC of the scrotum in the last 10 years.
  5. Shanggar, K., Muhilan, P., Dublin, N., Lee, George E.G., Azad Hassan, A.R.
    JUMMEC, 2007;10(2):57-59.
    MyJurnal
    Rhabdomyosarcoma of the genitourinary tract is rare and predominantly affects paediatric patients. We present an unusual case of such a lesion in an adult with extensive occupation of the bladder cavity by the lesion, resulting in bilateral ureteric obstruction, without evidence of ureteric outlet invasion. We outline the unusual CT and macroscopic appearance of this lesion. We also discuss the literature data and management strategies of rhabdomyosarcoma of the genitourinary tract.
  6. Shanggar K, Zulkifli MZ, Razack AH, Dublin N
    Med J Malaysia, 2010 Mar;65(1):21-2.
    PMID: 21265242 MyJurnal
    Granulomatous Prostatitis (GnP) is a heterogenous entity classified into specific infections, non-specific infections, post surgical i.e. post-transurethral resection of prostate (TURP) and rare secondary (systemic) causes. A total of 1388 reports of prostatic biopsy and prostatic chips from TURP were reviewed from 1995 and 2007. The results which showed granulomatous prostatitis were analyzed and retrospective data collected from the patient's records. A total of 9 cases with granulomatous prostatitis were identified. There are 3 types of entities which are the non-specific (NSGnP), post-TURP and the specific type. The incidence of GnP in our center is lower than reported by Stillwell et al. The majority of the patients were Malays.
  7. Robson NZ, Razack AH, Dublin N
    Asia Pac J Public Health, 2010 Jul;22(3):271-8.
    PMID: 20460294 DOI: 10.1177/1010539509357446
    Recent advances in the fields of organ donation and organ transplant have introduced new hope for the treatment of serious diseases. However, this promise has been accompanied by several issues. The most common issue raised is ethical implications, but in a multicultural society like Malaysia, additional concerns arise pertaining to social and religious issues. These concerns needs to be addressed as attitudes toward and acceptability of organ donation varies according to social, culture, and religion. The diverse cultural, religious, and traditional concepts pertaining to organ donation may hamper its acceptability and cause a lack of willingness to donate organs. The purpose of this article is to briefly explore the ethical issues involved in organ transplant and the various religious opinions on organ donation. It is hoped that this knowledge and understanding may benefit both health care providers and patients in a multicultural society like Malaysia.
  8. Quek KF, Loh CS, Low WY, Razack AH, Dublin N
    J Sex Marital Ther, 2003 Mar-Apr;29(2):173-6.
    PMID: 12623769
  9. Quek KF, Low WY, Razack AH, Chua CB, Loh CS, Dublin N
    Med J Malaysia, 2002 Dec;57(4):445-53.
    PMID: 12733169
    To validate the International Index of Erectile Function (IIEF-15) in Malaysian population. Reliability and internal consistency were evaluated using the test-retest method and Cronbach's alpha. Sensitivity to change was expressed as the effect size index. Internal consistency was excellent (Cronbach's alpha value = 0.75 to 0.90) Test-retest correlation coefficient and intraclass correlation coefficient were highly significant (ICC = 0.75 and above) and a high degree of sensitivity and specificity was observed. The IIEF-15 is suitable, reliable, valid and sensitive to clinical change in the Malaysian population.
  10. Parameswaran, M, Sivaprakasam, S., Dublin, N., Razack, A.H., Thun, T.H., Chua, C.B., et al.
    JUMMEC, 2009;12(2):74-82.
    MyJurnal
    The aim of this study was to validate the translation of the Overactive Bladder (OAB) Screener (OAB V8) to the Malay language. It was to assess the reliability of the screener in the context of a Malaysian population. The original screener consists of eight symptoms indicative of OAB that has been proven to be highly sensitive and reliable. Translation was done with a modification of the Brislin Method using back translation and a panel of experts as a final review panel. The pilot study had two groups; a symptomatic (n=19 patients) and an asymptomatic group (n=18 patients). All patients performed the test twice at two week intervals once at the clinic and subsequently at home. Test-retest method was used for reliability and Cronbach's alpha for internal consistency. The translated questionnaire demonstrated good internal consistency in both groups of patients for all eight items individually and for the total score. Cronbach's alphas ranged from 0.972 to 0.981 for the symptomatic group and from 0.750 to 0.976 for the asymptomatic group. Testretest correlation for all items was highly significant. Intraclass orrelation (ICC) was high for both the asymptomatic (ICC ranging from 0.600 to 0.953) and the symptomatic group (ranging from 0.944 to 0.989).The Malay OAB V8 showed itself to be suitable for use, reliable in distinguishing symptomatic and asymptomatic patients and a valid instrument.
  11. Ng, K.L., Sathiyananthan, J.R., Dublin, N., Razack, A.H., Lee, G.
    JUMMEC, 2011;14(1):21-22.
    MyJurnal
    Prostate cancer is not uncommon amongst the elderly men. Diagnosis is made using histopathology specimens of Transrectal Ultrasound guided biopsy of the prostate gland. However, prostate cancer presenting as a intra-prostatic cysts are rare. We report a case of elderly gentleman who presented with malignant intra-prostatic cysts.
  12. Ng KL, Nawawi O, Lim BK, Htun TH, Dublin N, Razack AH
    Asian J Surg, 2017 Apr;40(2):171-174.
    PMID: 24210538 DOI: 10.1016/j.asjsur.2013.09.012
    Ureteric strictures are common and can be due to benign or malignant causes. Various surgical treatments can be used from minimally invasive endoscopic retrograde JJ stent insertion, balloon dilatation, ureterolithotomy, to open surgical exploration and repair. Memokath 051 stent is a metallic stent designed for long-term ureteral stenting in the management of ureteral strictures. The insertion of this device is usually a straightforward procedure performed endoscopically in a retrograde fashion via cystoscopy. However, this procedure can be difficult in complicated scenarios when the bladder has been removed with neoureteral reimplantations or high-grade strictures. Here, we report a case of Memokath stent insertion complicated by placement difficulties in a lady with ileal conduit due to previous ovarian cancer complicated by vesicovaginal fistula, who presented with malignant stricture of the ureteroileal anastomosis. We describe a simple yet effective antegrade technique to precisely reposition the malpositioned Memokath stent, along with illustrations.
  13. Ng KL, Htun TH, Dublin N, Ong TA, Razack AH
    Asian Pac J Cancer Prev, 2012;13(6):2515-8.
    PMID: 22938414
    AIM: To study the causes and significance of both microscopic and macroscopic haematuria in adult patients and assess possible relevance to early detection of urological cancers.

    METHODS: 417 patients presenting with haematuria were assessed in our Urology Unit. Following confirmation of haematuria, these patients were subjected to imaging techniques and flexible cystoscopy. Parameters analysed included clinical characteristics, imaging results, flexible cystoscopy findings, time delay to diagnoses and eventual treatment and final diagnoses of all cases.

    RESULTS: 390 haematuria cases were analysed from 417 consecutive patients with haematuria. After 27 cases were excluded as they had previous history, 245 microscopic and 145 macroscopic. Age range was 17 to 95 years old with predominance of 152 females to 239 males. The racial distribution included 180 Chinese, 100 Indians,95 Malays and 15 other races. The final diagnoses were benign prostatic hyperplasia (22.6%), no cause found (22.3%), other causes (18.7%), urolithiasis (11.5%), urinary tract infection UTI (10.8%), non specific cystitis (10.3%), bladder tumours (2.8%) and other genitourinary tumours (1%). 11 new cases (2.8%) of bladder cancers were diagnosed, with a mean age of 59 years. Only 3 of 245 (1.2%) patients with microscopic haematuria had newly diagnosed bladder tumour compared with 8 of 145 (5.5%) patients with frank haematuria (p=0.016). Mean time taken from onset of symptoms to diagnosis of bladder cancer was 53.3 days with definitive treatment (TURBT) in 20.1 days from diagnosis.

    CONCLUSION: - This study has highlighted the common causes of haematuria in our local setting. We recommend that full and appropriate investigations be carried out on patients with frank haematuria especially those above 50 years old in order to provide earlier detection and prompt management of bladder diseases especially tumours.

  14. Ng KL, Mahadevan DT, Htun TH, Razack AH, Dublin N
    Med J Malaysia, 2011 Aug;66(3):268-9.
    PMID: 22111458
  15. Kuppusamy S, Faizal N, Quek KF, Razack AH, Dublin N
    World J Urol, 2010 Dec;28(6):673-6.
    PMID: 20623289 DOI: 10.1007/s00345-010-0578-7
    It is still uncertain as to which form of anaesthesia is the optimum. We conducted a study to identify the best location and optimum volume of anaesthetic agent in order to achieve best pain relief and cooperation from our patients. We also assessed the need for local anaesthetic gel for probe lubrication and if the number of cores during biopsy makes a difference in the pain score.
  16. Koh, P.S., Muhilan, P., Dublin, N., Razack, A.H.
    JUMMEC, 2009;12(1):39-43.
    MyJurnal
    Renal angiomyolipoma, once considered a rare benign renal tumour, is relatively common these days. They account for 0.3-3.0% of all renal masses. Histologically, it is composed of adipose tissue, smooth muscles and blood vessels. Here, we wish to highlight five cases of renal angiomyolipomas which were presented to the University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia, over a two-year period between June 2005 and June 2007. This study wish to illustrate its varied clinical presentation and the management undertaken for each underlying condition. These cases were presented in the form of spontaneous perirenal haemorrhage, a large asymptomatic renal mass, a small asymptomatic renal mass, a symptomatic renal angiomyolipoma and a case of renal angiomyolipoma mimicking a renal tumour. Each of these cases varied in its clinical presentation; thus, management has become very challenging to clinicians ranging from conservative management to active intervention, be it operatively or non-operatively.
  17. Koh KB, Dublin N, Light T
    Aust N Z J Surg, 1995 Sep;65(9):645-6.
    PMID: 7575294
    A retrospective review of 80 patients who underwent scrotal exploration for presumed testicular torsion is presented. Of these, 67 patients were found to have torsion, and the testicular loss rate was 51%. Patients who experienced delays in scrotal exploration of more than 24 h from onset of symptoms had a testicular loss rate of 71%. These delays arose from both hesitation in seeking medical treatment and misdiagnoses. It is emphasized that an acute scrotum in a child or in an adolescent should be explored early to exclude torsion.
  18. Htun, T.H., Dublin, N., Parameswaran, M., Razack, A.H., Chua, C.B.
    JUMMEC, 2008;11(1):27-29.
    MyJurnal
    Priapism is a urological emergency. The treatment for ischaemic priapism is usually cavernosal aspiration with or without cavernosal irrigation. Some patients may need surgical intervention -the various shunt procedures. We report a 21-year-old man with priapism secondary to chronic myeloid leukemia who needed a combined medical and surgical management. He underwent a spongiocavernosal shunt as well as cytoreductive chemotherapy to achieve complete detumescence. Therefore, cytoreductive chemotherapy is an adjunct in difficult cult to treat priapism associated with chronic myeloid leukemia.
  19. 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.
  20. Hong YH, Dublin N, Razack AH, Mohd MA, Husain R
    Urology, 2010 Jun;75(6):1294-8.
    PMID: 19914693 DOI: 10.1016/j.urology.2009.08.061
    OBJECTIVES: To investigate the correlations and agreements between the solute/creatinine ratios from the 24-hour and early morning spot urine samples for metabolic evaluation in stone-formers given the various pitfalls with the 24-hour urinary metabolic evaluation in stone-formers.
    METHODS: 30 urinary stone-formers out of an initial 62 recruited provided a complete 24-hour urine and early morning spot urine samples for metabolic evaluation. Pearson correlation and Bland and Altman Test were used to assess the correlations and agreements.
    RESULTS: Significant correlations were established between the 24-hour urinary solute excretions and the corresponding early morning spot urine solute/creatinine ratios for calcium, magnesium, urate, potassium, oxalate, citrate, and the Differential Gibb's free energy value of calcium oxalate DG(CaOx) values. However, all these solute/creatinine measurements between the 24-hour and early morning spot urine samples were judged to be not within the acceptable limits based on the estimated "limit of agreement" by the Bland and Altman Test of Agreement. Diurnal circadian rhythm and postprandial excretion surge are thought to be responsible for the disagreements.
    CONCLUSIONS: Thus, the early morning spot urine is not suitable to be used interchangeably to replace the 24-hour urine collection in the evaluation of urinary metabolic abnormalities in stone-formers. A good correlation does not translate to an agreement between the 2 measurements.
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