Displaying publications 1 - 20 of 37 in total

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  1. Abdul Gafor AH, Saidin R, Loo CY, Mohd R, Zainudin S, Shah SA, et al.
    Nephrology (Carlton), 2009 Aug;14(5):488-92.
    PMID: 19298641 DOI: 10.1111/j.1440-1797.2008.01058.x
    Secondary hyperparathyroidism (SHPT) is common among haemodialysis patients. Intensive treatment with calcitriol is often complicated by hypercalcaemia, hyperphosphataemia and elevated calcium phosphorus (Ca X PO(4)) product. Paricalcitol is a vitamin D analogue developed to overcome some of the limitations of calcitriol therapy. The study objectives were to compare the response of intact parathyroid hormone (iPTH) and the incidence of hypercalcaemia, hyperphosphataemia and elevated Ca X PO(4) product in patients with severe SHPT treated with either i.v. calcitriol or i.v. paricalcitol.
  2. Bhargava V, Jasuja S, Tang SC, Bhalla AK, Sagar G, Jha V, et al.
    Nephrology (Carlton), 2021 Nov;26(11):898-906.
    PMID: 34313370 DOI: 10.1111/nep.13949
    BACKGROUND: Peritoneal dialysis (PD) as a modality of kidney replacement therapy (KRT) is largely underutilized globally. We analyzed PD utilization, impact of economic status, projected growth and impact of state policy(s) on PD growth in South Asia and Southeast Asia (SA&SEA) region.

    METHODS: The National Nephrology Societies of the region responded to a questionnaire on KRT practices. The responses were based on the latest registry data, acceptable community-based studies and societal perceptions. The representative countries were divided into high income and higher-middle income (HI & HMI) and low income and lower-middle income (LI & LMI) groups.

    RESULTS: Data provided by 15 countries showed almost similar percentage of GDP as health expenditure (4%-7%). But there was a significant difference in per capita income (HI & HMI -US$ 28 129 vs. LI & LMI - US$ 1710.2) between the groups. Even after having no significant difference in monthly cost of haemodialysis (HD) and PD in LI & LMI countries, they have poorer PD utilization as compared to HI & HMI countries (3.4% vs. 10.1%); the reason being lack of formal training/incentives and time constraints for the nephrologist while lack of reimbursement and poor general awareness of modalities has been a snag for the patients. The region expects ≥10% PD growth in the near future. Hong Kong and Thailand with 'PD first' policy have the highest PD utilization.

    CONCLUSION: Important deterrents to PD underutilization were lack of PD centric policies, lackadaisical patient/physician's attitude, lack of structured patient awareness programs, formal training programs and affordability.

  3. Ch'ng CC, Ong LM, Beh KKM, Md Yusuf WS, Chew TF, Lee ML, et al.
    Nephrology (Carlton), 2020 Aug;25(8):644-651.
    PMID: 31900988 DOI: 10.1111/nep.13689
    AIM: Many patients, especially the elderly, who require renal replacement therapies (RRT) have delayed or rejected dialysis for various reasons. Current dialysis guidelines may not be relevant for the elderly or frail patients. We aim to determine survival advantage of initiating dialysis in patients deemed to require RRT.

    METHODS: This was an observational cohort on incident end-stage kidney disease (ESKD) patients from January 1, 2007 to December 31, 2008. The primary outcome was all-cause mortality. Patients contributed person-time from the date of ESKD diagnosis until death, transplant or end of study on December 31, 2014, whichever occurred first. An extended Cox regression model with time-varying exposure to dialysis was used to account for immortal time bias.

    RESULTS: Of 3990 incident ESKD patients included, 70.2% patients initiated dialysis; 78.8% with haemodialysis (HD) while the remaining 21.2% with peritoneal dialysis (PD). Dialysis reduced hazard of death in both elderly and non-elderly patients even after controlling for comorbidities (hazard ratio [HR] 0.58, 95% confidence interval [CI] 0.50, 0.68 and HR 0.76, 95% CI 0.69, 0.85, respectively). HD was protective in both the elderly and non-elderly (HR 0.53, 95% CI 0.45, 0.63 and HR 0.71, 95% CI 0.64, 0.80, respectively). PD significantly reduced risk of death compared to no dialysis in the elderly but not in the non-elderly.

    CONCLUSION: Dialysis improved survival in all incident ESKD patients. The findings suggested a larger protection offered by HD. Although improvement in survival from initiating dialysis was large, its true benefit should take overall quality of life into account. SUMMARY AT A GLANCE This observational study showed that initiation of dialysis improves the survival of end-stage kidney disease (ESKD) patients of all age groups, but the quality of life is an important aspect that has not been explored.

  4. Ghani RA, Zainudin S, Ctkong N, Rahman AF, Wafa SR, Mohamad M, et al.
    Nephrology (Carlton), 2006 Oct;11(5):386-93.
    PMID: 17014550
    Sepsis is characterized by an uncontrolled release of pro-inflammatory and anti-inflammatory mediators leading to immunoparalysis, cellular and humoral dysfunction, multiorgan dysfunction and death. This study evaluated the efficacy of high-volume haemofiltration (HVHF) compared with continuous venovenous haemofiltration (CVVH) in removing these inflammatory mediators. Clinical responses were assessed with the sequential organ failure assessment (SOFA) score.
  5. Goh BL, Ong LM, Sivanandam S, Lim TO, Morad Z, Biogeneric EPO Study Group
    Nephrology (Carlton), 2007 Oct;12(5):431-6.
    PMID: 17803464
    Treatment of renal anaemia with epoetin is well established. However, epoetin is expensive. Biogeneric epoetin with proven efficacy would reduce cost and improve access to therapy. We conducted this first ever comparative study of a biogeneric and the original product.
  6. Hooi LS, Lim TO, Goh A, Wong HS, Tan CC, Ahmad G, et al.
    Nephrology (Carlton), 2005 Feb;10(1):25-32.
    PMID: 15705178 DOI: 10.1111/j.1440-1797.2005.00360.x
    BACKGROUND: This is a multi-centre study to determine cost efficiency and cost effectiveness of the Ministry of Health centre haemodialysis and continuous ambulatory peritoneal dialysis (CAPD) programme.
    METHODS: Forty-four haemodialysis and 11 CAPD centres were enrolled in this study in 2001. Sixty patients, 30 from each modality, were evaluated. Micro-costing was used to determine costs.
    RESULTS: The number of haemodialyses conducted ranged from 402 to 23,000 procedures per year, while for CAPD, output ranged from 70 to 2300 patient months/year. Cost ranged from RM79.61 to RM475.79 per haemodialysis treatment, with a mean cost of RM169 per HD (USD 1 = RM 3.80). The cost of CAPD treatment ranged from RM1400 to RM3200 per patient month, with a mean of RM2186. Both modalities incurred similar outpatient costs. The cost of erythropoeitin per year is RM4500 and RM2500 for haemodialysis and CAPD, respectively. The number of life years saved is 10.96 years for haemodialysis and 5.21 years for CAPD. Cost per life year saved is RM33 642 for haemodialysis and RM31 635 for CAPD. The cost for land, building, equipment, overheads, and staff were higher for haemodialysis, while consumables and hospitalization cost more for CAPD. Sensitivity analysis was performed for two discount rates (3 and 5%), varying erythropoietin doses and maximum and minimum overheads. Relative cost effectiveness of haemodialysis and CAPD was unchanged in all sensitivity scenarios, except for overhead costs, which influenced the cost effectiveness of HD.
    CONCLUSION: It is economically viable to promote the use of both CAPD and haemodialysis because the cost effectiveness of both are nearly equal.
  7. Jamal JA, Mat-Nor MB, Mohamad-Nor FS, Udy AA, Lipman J, Roberts JA
    Nephrology (Carlton), 2014 Aug;19(8):507-12.
    PMID: 24802363 DOI: 10.1111/nep.12276
    To describe renal replacement therapy (RRT) prescribing practices in Malaysian intensive care units (ICU), and compare this with previously published data from other regions.
  8. Jasuja S, Gallieni M, Jha V, Vachharajani T, Bhalla AK, Tan J, et al.
    Nephrology (Carlton), 2023 Dec;28(12):672-681.
    PMID: 37697492 DOI: 10.1111/nep.14236
    AIM: This cross-sectional survey aimed to determine the prevalence of Interventional Nephrology (IN) practice amongst nephrologists in the Asia-Pacific Region (APR), specifically related to dialysis access (DA).

    METHODS: The Association of VA and intervenTionAl Renal physicians (AVATAR) Foundation from India conducted a multinational online survey amongst nephrologists from the Asia-Pacific to determine the practice of IN in the planning, creation, and management of dialysis access. The treatment modalities, manpower and equipment availability, monthly cost of treatment, specifics of dialysis access interventions, and challenges in the training and practice of IN by nephrologists were included in the survey.

    RESULTS: Twenty-one countries from the APR participated in the survey. Nephrologists from 18 (85.7%) countries reported performing at least one of the basic dialysis access-related IN procedures, primarily the placement of non-tunnelled central catheters (n-TCC; 71.5%). Only 10 countries (47.6%) reported having an average of <4% of nephrologists performing any of the advanced IN access procedures, the most common being the placement of a peritoneal dialysis (PD) catheter (20%). Lack of formal training (57.14%), time (42.8%), incentive (38%), institutional support (38%), medico-legal protection (28.6%), and prohibitive cost (23.8%) were the main challenges to practice IN. The primary obstacles to implementing the IN training were a lack of funding and skilled personnel.

    CONCLUSION: The practice of dialysis access-related IN in APR is inadequate, mostly due to a lack of training, backup support, and economic constraints, whereas training in access-related IN is constrained by a lack of a skilled workforce and finances.

  9. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH, Jummaat F
    Nephrology (Carlton), 2017 Jan;22(1):25-34.
    PMID: 26718476 DOI: 10.1111/nep.12713
    AIM: Despite increase global prevalence of End stage renal disease (ESRD) and subsequent need for renal replacement therapy (RRT), relatively little is known about disease progression and prognosis of earlier stages of CKD. Current study was conducted to examine rate of CKD progression, predictors of ESRD and death.

    METHODS: A total 621 patients with estimated glomerular filtration rate (eGFR) of 15-59ml/min/1.73m(2) (CKD stage 3 & 4) were selected and followed up for 10 years or until ESRD or death, whichever occurred first. Subjects who did not meet inclusion criteria were excluded (n=1474).

    RESULTS: Annual cumulative decline in eGFR was 3.01±0.40 ml/min/1.73m(2) . Overall disease progression was observed in 60% patients while 18% died. Among patients with CKD stage 3, 21% progressed to stage 4, 10% to stage 5ND (non-dialysis) and 31% to RRT while mortality was observed in 16% patients. On the other hand, 8% patients with CKD stage 4 progressed to stage 5ND, 31% to RRT and mortality was observed in 24% cases. Patients with CVD, higher systolic blood pressure, elevated phosphate levels, heavy proteinuria, microscopic hematuria and use of diuretics were more likely to develop ESRD. Advancing age, low eGFR, low systolic blood pressure, low hemoglobin and baseline diabetes were found to be significant predictors of mortality while being female reduced risk of mortality.

    CONCLUSION: Our data suggest that, in this CKD cohort, patients were more likely to develop ESRD than death. Prime importance should be given to mild forms of CKD to retard and even reverse CKD progression.

  10. Leong SS, Wong JHD, Md Shah MN, Vijayananthan A, Jalalonmuhali M, Chow TK, et al.
    Nephrology (Carlton), 2021 Jan;26(1):38-45.
    PMID: 33058334 DOI: 10.1111/nep.13805
    AIM: Renal biopsy is the gold standard for the histological characterization of chronic kidney disease (CKD), of which renal fibrosis is a dominant component, affecting its stiffness. The aim of this study was to investigate the correlation between kidney stiffness obtained by shear wave elastography (SWE) and renal histological fibrosis.

    METHODS: Shear wave elastography assessments were performed in 75 CKD patients who underwent renal biopsy. The SWE-derived estimates of the tissue Young's modulus (YM), given as kilopascals (kPa), were measured. YM was correlated to patients' renal histological scores, broadly categorized into glomerular, tubulointerstitial and vascular scores.

    RESULTS: Young's modulus correlates significantly with tubulointerstitial score (ρ = 0.442, P 

  11. Li PK, Lui SL, Ng JK, Cai GY, Chan CT, Chen HC, et al.
    Nephrology (Carlton), 2017 Dec;22 Suppl 4:3-8.
    PMID: 29155495 DOI: 10.1111/nep.13143
    To address the issue of heavy dialysis burden due to the rising prevalence of end-stage renal disease around the world, a roundtable discussion on the sustainability of managing dialysis burden around the world was held in Hong Kong during the First International Congress of Chinese Nephrologists in December 2015. The roundtable discussion was attended by experts from Hong Kong, China, Canada, England, Malaysia, Singapore, Taiwan and United States. Potential solutions to cope with the heavy burden on dialysis include the prevention and retardation of the progression of CKD; wider use of home-based dialysis therapy, particularly PD; promotion of kidney transplantation; and the use of renal palliative care service.
  12. Li PK, Lu W, Mak SK, Boudville N, Yu X, Wu MJ, et al.
    Nephrology (Carlton), 2022 Oct;27(10):787-794.
    PMID: 35393750 DOI: 10.1111/nep.14042
    Peritoneal dialysis (PD) first policy has been established in Hong Kong since 1985. After 35 years of practice, the PD first policy in Hong Kong has influenced many countries around the world including governments, health ministries, nephrologists and renal nurses on the overall health policy structure and clinical practice in treating kidney failure patients using PD as an important dialysis modality. In 2021, the International Association of Chinese Nephrologists and the Hong Kong Society of Nephrology jointly held a symposium celebrating the 35 years of PD first policy in Hong Kong. In that symposium, experts and opinion leaders from around the world have shared their perspectives on how the PD first policy has grown and how it has affected PD and home dialysis practice globally. The advantages of PD during COVID-19 pandemic were highlighted and the use of telemedicine as an important adjunct was discussed in treating kidney failure patients to improve the overall quality of care. Barriers to PD and the need for sustainability of PD first policy were also emphasized. Overall, the knowledge awareness of PD as a home dialysis for patients, families, care providers and learners is a prerequisite for the success of PD first. A critical mass of PD regional hubs is needed for training and mentorship. Importantly, the alignment of policy and clinical goals are enablers of PD first program.
  13. Liew A, Bavanandan S, Prasad N, Wong MG, Chang JM, Eiam-Ong S, et al.
    Nephrology (Carlton), 2020 10;25 Suppl 2:12-45.
    PMID: 33111477 DOI: 10.1111/nep.13785
  14. Liew A, Lydia A, Matawaran BJ, Susantitaphong P, Tran HTB, Lim LL
    Nephrology (Carlton), 2023 Aug;28(8):415-424.
    PMID: 37153973 DOI: 10.1111/nep.14167
    Recent clinical studies have demonstrated the effectiveness of SGLT-2 inhibitors in reducing the risks of cardiovascular and renal events in both patients with and without type 2 diabetes mellitus. Consequently, many international guidelines have begun advocating for the use of SGLT-2 inhibitors for the purpose of organ protection rather than as simply a glucose-lowering agent. However, despite the consistent clinical benefits and available strong guideline recommendations, the utilization of SGLT-2 inhibitors have been unexpectedly low in many countries, a trend which is much more noticeable in low resource settings. Unfamiliarity with the recent focus in their organ protective role and clinical indications; concerns with potential adverse effects of SGLT-2 inhibitors, including acute kidney injury, genitourinary infections, euglycemic ketoacidosis; and their safety profile in elderly populations have been identified as deterring factors to their more widespread use. This review serves as a practical guide to clinicians managing patients who could benefit from SGLT-2 inhibitors treatment and instill greater confidence in the initiation of these drugs, with the aim of optimizing their utilization rates in high-risk populations.
  15. Lim TO, Goh A, Lim YN, Morad Z
    Nephrology (Carlton), 2008 Dec;13(8):745-52.
    PMID: 19154324 DOI: 10.1111/j.1440-1797.2008.01044.x
    We review renal registry data from the Asia-Pacific region with an emphasis on their uses in health care and in dialysis care in particular. The review aims to demonstrate the information value of registry data. While renal registry provides a useful data resource for epidemiological research, there are severe methodological limitations in its application for analytical or therapeutic research. However, it is the use of renal registry data for public health and health-care management purposes that registry really comes into its own, and it is primarily for these that governments have invested in national patient and disease registries. We apply data from several renal registries in the Asia-Pacific region to illustrate its wide application for planning dialysis services, for evaluating dialysis practices and health outcomes, with a view to improving the quality of dialysis care. In the course of preparing the review, we have found that the quality and accessibility of renal registry data were highly variable across the region. Given the value of renal registry, every country in the Asia-Pacific region should establish one or should ensure that their current registries are better resourced and developed. Greater data sharing and collaboration among registries in the region could help advance the nephrology to serve our patients better.
  16. Liyanage T, Ninomiya T, Perkovic V, Woodward M, Stirnadel-Farrant H, Matsushita K, et al.
    Nephrology (Carlton), 2017 Jun;22(6):456-462.
    PMID: 27187157 DOI: 10.1111/nep.12821
    AIM: The burden of chronic kidney disease (CKD) is growing rapidly around the world. However, there is limited information on the overall regional prevalence of CKD, as well as the prognostic implications and treatment patterns in Asian region. We have established the Asian Renal Collaboration (ARC) with the goal of consolidating region-wide data regarding CKD.

    METHODS: This collaborative project will synthesize data and perform meta-analyses of observational studies conducted in Asia. Studies will be identified through a systematic literature search including abstracts, proceedings of meetings, electronic databases such as MEDLINE and EMBASE. Personal enquiry among collaborators and experts in the region will identify additional studies, or other data sources such as registries. Both cross-sectional and longitudinal studies that describe the prevalence of CKD and its complications will be included, as will longitudinal studies that describe important clinical outcomes for people with CKD. Individual participant data will be sought, where possible, from each of the studies included in the collaboration for baseline parameters and subsequent outcomes, in order to maximize flexibility and consistency of data analyses.

    CONCLUSIONS: This study is an initiative offering a unique opportunity to obtain information about the prevalence and manifestations of CKD in Asia, as well as its risk factors. The ARC will also provide insights into important outcomes including progression of CKD, CKD complications, cardiovascular disease and death. These findings will improve our understanding of kidney disease in Asia, and thus help inform service provision, preventive care and further research across the region.

  17. Md Ralib A, Mat Nor MB, Pickering JW
    Nephrology (Carlton), 2017 May;22(5):412-419.
    PMID: 27062515 DOI: 10.1111/nep.12796
    AIM: Sepsis is the leading cause of intensive care unit (ICU) admission. Plasma Neutrophil Gelatinase Associated-Lipocalin (NGAL) is a promising biomarker for acute kidney injury (AKI) detection; however, it is also increased with inflammation and few studies have been conducted in non-Caucasian populations and/or in developing economies. Therefore, we evaluated plasma NGAL's diagnostic performance in the presence of sepsis and systemic inflammatory response syndrome (SIRS) in a Malaysian ICU cohort.

    METHODS: This is a prospective observational study on patients with SIRS. Plasma creatinine (pCr) and NGAL were measured on ICU admission. Patients were classified according to the occurrence of AKI and sepsis.

    RESULTS: Of 225 patients recruited, 129 (57%) had sepsis of whom 67 (52%) also had AKI. 96 patients (43%) had non-infectious SIRS, of whom 20 (21%) also had AKI. NGAL concentrations were higher in AKI patients within both the sepsis and non-infectious SIRS cohorts (both P 

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