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Fulltext Dialysis in Malaysia

Hooi LS

Med J Malaysia, 2006 Dec;61(5):513-5.
PMID: 17623948
Fulltext Acute renal failure requiring dialysis--a 5 year series

Hooi LS

Med J Malaysia, 1997 Sep;52(3):251-6.
PMID: 10968094

A retrospective review of 246 patients with established acute renal failure (ARF) needing dialysis from 1990-1994 is reported from Hospital Sultanah Aminah, Johor Bahru. Peritoneal dialysis was more commonly used than haemodialysis or haemofiltration. Patients on mechanical ventilation in Intensive Care Unit (ICU) who were hypercatabolic and fluid overloaded were treated with haemofiltration. Males outnumbered females by a ratio of 1.5:1. The majority were Malays (61.4%). Most patients were from the district of Johor Bahru, but 41.5% were from other districts in the Johor state. The mean age was 47.1 years (SD 18.2). The ARF was caused by acute tubular necrosis in 55.3%, post-renal obstruction in 22.8%, nephrotoxins in 5.7% and other causes in 16.2%. The proportions of patients referred from the medical, surgical and obstetric and gynaecology units were 50.8%, 45.5% and 3.7% respectively. The mortality rate was 48%. Patients with established ARF should be dialysed early as they tolerate uraemia poorly. Prevention is by prompt treatment of patients with sepsis, avoidance of hypovolaemia and nephrotoxic drugs.
Fulltext A registry of patients with end stage renal disease--the experience at hospital Sultanah Aminah, Johor Baru

Hooi LS

Med J Malaysia, 1993 Jun;48(2):185-93.
PMID: 8350794

A registry of patients with end stage renal disease was started from 1st January 1990 at Hospital Sultanah Aminah, Johor Baru. There were 126 patients in 1990 and 129 in 1991. The peak age was 31 to 60 years old; males outnumbered females 1.5:1. Forty-three to fifty-six percent presented with small kidneys. Seventeen to twenty percent of patients had diabetes mellitus. In 1991, the racial distribution of patients was Malay: 50.4%, Chinese: 39.5%, Indian: 7.8% and others: 2.3%. The incidence of end stage renal disease in Johor Baru district was 79 per million per year in 1990 and 86 per million in 1991.
Fulltext Human immunodeficiency virus infection in recipients of living unrelated donor renal transplants--a report of 4 cases

Hooi LS

Med J Malaysia, 1993 Jun;48(2):232-5.
PMID: 8350803

Four cases of Human Immunodeficiency Virus (HIV-1) infection, probably following living unrelated donor renal transplantation done in India, are reported. One of them subsequently developed Acquired Immunodeficiency Syndrome (AIDS).
Fulltext National Transplant Registry

Hooi LS, Lela Yasmin M

Med J Malaysia, 2008 Sep;63 Suppl C:9-12.
PMID: 19230241
Fulltext Patients with end stage renal disease: a registry at Sultanah Aminah Hospital, Johor Bahru, Malaysia

Liu WJ, Hooi LS

Med J Malaysia, 2007 Aug;62(3):197-200.
PMID: 18246906 MyJurnal

The epidemiology of new patients presenting to Sultanah Aminah Hospital Johor Bahru (HSAJB) with end-stage renal disease (ESRD) in 2003 and 2004 was analysed. Patients with ESRD were prospectively registered in the renal replacement therapy (RRT) database in the nephrology unit. The incidence of ESRD and the RRT provision rate in the district of Johor Bahru were calculated according to gender and race. There were 306 new patients in 2003 and 299 in 2004. Diabetic nephropathy contributed 56.8% new patients in 2003 and 57.9% in 2004. The mean age was 50.8 + 15.1 years in 2003 and 51.3 + 14.2 years in 2004. Males accounted for 53.3% in 2003 and 47.8% in 2004. Haemodialysis was the commonest form of RRT (60.5% in 2003, 69.9% in 2004), followed by continuous ambulatory peritoneal dialysis (30.1% in 2003, 19.4% in 2004) and renal transplantation (5.5% in 2003, 2.3% in 2004). Ninety-one percent of patients in 2003 and 90% in 2004 were alive at the end of the year they presented. The incidence of ESRD in the district of Johor Bahru was estimated as 136 per million population (p.m.p.) in 2003 and 151 p.m.p. in 2004. In the two year period the incidence of ESRD was higher among females (154 p.m.p.) than males (134 p.m.p.). Malays (194 p.m.p.) had higher ESRD incidence compared to Chinese (126 p.m.p.) and Indians (134 p.m.p.). RRT provision in Johor Bahru (92.7%) did not differ significantly with gender or race. The increasing number of patients presenting to HSAJB with ESRD especially those with diabetic nephropathy is a major concern. Prevention strategies at the primary care level may curb the burden of this chronic disease.
Fulltext Outcome of 85 lupus nephritis patients treated with intravenous cyclophosphamide: a single centre 10 year experience

Chan AYK, Hooi LS

Med J Malaysia, 2000 Mar;55(1):14-20.
PMID: 11072485

Retrospective analysis was done on 85 patients (76 female, 9 male) with lupus nephritis who started intravenous cyclophosphamide between 1/1/1989 and 31/12/1998. The initial renal biopsy (World Health Organisation) classification was III (4.7%), IV (89.4%) and V (5.9%). Average serum creatinine at time of biopsy was 0.12 +/- 0.12 mmol/l. Median duration of nephritis before biopsy was 2 months (range 0-133). Median duration of follow-up from time of biopsy to outcome (death or end-stage renal failure) was 3.3 years (range 0.3-11.8). Nineteen patients died. The calculated proportion alive at 5 years was 75% and at 10 years 64%. The calculated proportion alive with renal function was 74% and 54% at 5 and 10 years respectively. Fifty-two patients completed cyclophosphamide therapy at the end of the study. There were ten episodes of herpes zoster, the most common infection seen. No malignancy was reported.
Complications after tenckhoff catheter insertion: a single-centre experience using multiple operators over four years

Liu WJ, Hooi LS

Perit Dial Int, 2010 03 12;30(5):509-12.
PMID: 20228175 DOI: 10.3747/pdi.2009.00083

OBJECTIVE: To analyze the complications after Tenckhoff catheter insertion among patients with renal failure needing dialysis. ♢
PATIENTS AND METHODS: The open, paramedian approach is the commonest technique to insert the 62-cm coiled double-cuffed Tenckhoff peritoneal catheter. All patients with catheters inserted between January 2004 and November 2007 were retrospectively analyzed for demographics and followed for up to 1 month for complications. We excluded patients whose catheters had been anchored to the bladder wall and who underwent concurrent omentectomy or readjustment without removal of a malfunctioning catheter (n = 7). Intravenous cloxacillin was the standard preoperative antibiotic prophylaxis. ♢
RESULTS: Over the 4-year study period, 384 catheters were inserted under local anesthetic into 319 patients [201 women (62.8%); mean age: 49.4 ± 16.7 years (range: 13 - 89 years); 167 (52.2%) with diabetes; 303 (95%) with end-stage renal disease] by 22 different operators. All Tenckhoff catheters were inserted by the general surgical (n = 223) or urology (n = 161) team. There were 29 cases (7.6%) of catheter migration, 22 (5.7%) of catheter obstruction without migration, 24 (6.3%) of exit-site infection, 12 (3.1%) of leak from the main incision, 14 (3.6%) of culture-proven wound infection, 11 (2.9%) post-insertion peritonitis, and 1 (0.3%) hemoperitoneum. No deaths were attributed to surgical mishap. ♢
CONCLUSIONS: The most common complication was catheter migration. The paramedian insertion technique was safe, with low complication rates.
Fulltext Acute renal failure in the same hospital ten years apart

Chow YW, Lim BB, Hooi LS

Med J Malaysia, 2007 Mar;62(1):27-32.
PMID: 17682566 MyJurnal

A three month prospective study was carried out in 1994 (8/3/94 - 7/6/94) and late 2004/early 2005 (24/11/2004 - 15/2/2005) among patients with acute renal failure (ARF) (serum creatinine > 0.200 mmol/1). Incidence of ARF had increased from 0.48% (78/16,418) to 1.1% (211/18,697) of admissions between 1994 and 2004. Two thirds of patients were male. Mean age was 57.7 +/- 20.1 years in 1994 and 55.6 +/- 17.8 years in 2004. No difference was noted in causative factors, rate of oliguric ARF (about 10%) and mean peak urea and creatinine. The cause was pre-renal failure in 43.6% in 1994 and 53.5% in 2004. The second commonest cause was sepsis with 41% in 1994 and 37.9% in 2004. One in six patients needed dialysis and peritoneal dialysis was the main dialysis modality (69.2% and 74.3%). Mortality was 56.4% in 1994 and 44.5% in 2004. A quarter of deaths occurred within two days of admission due to severe underlying illness. Mortality among non-oliguric patients decreased from 52.9% in 1994 to 37.0% in 2004 (p = 0.04); for patients from intensive care units it was 78.3% in 1994 and 68.5% in 2004.
Prevention of renal failure: the Malaysian experience

Hooi LS, Wong HS, Morad Z

Kidney Int Suppl, 2005 Apr.
PMID: 15752245

Renal replacement therapy in Malaysia has shown exponential growth since 1990. The dialysis acceptance rate for 2003 was 80 per million population, prevalence 391 per million population. There are now more than 10,000 patients on dialysis. This growth is proportional to the growth in gross domestic product (GDP). Improvement in nephrology and urology services with widespread availability of ultrasonography and renal pathology has improved care of renal patients. Proper management of renal stone disease, lupus nephritis, and acute renal failure has decreased these as causes of end-stage renal disease (ESRD) in younger age groups. Older patients are being accepted for dialysis, and 51% of new patients on dialysis were diabetic in 2003. The prevalence of diabetes is rising in the country (presently 7%); glycemic control of such patients is suboptimal. Thirty-three percent of adult Malaysians are hypertensive and blood pressure control is poor (6%). There is a national coordinating committee to oversee the control of diabetes and hypertension in the country. Primary care clinics have been provided with kits to detect microalbuminuria, and ACE inhibitors for the treatment of hypertension and diabetic nephropathy. Prevention of renal failure workshops targeted at primary care doctors have been launched, opportunistic screening at health clinics is being carried out, and public education targeting high-risk groups is ongoing. The challenge in Malaysia is to stem the rising tide of diabetic ESRD.
Fulltext Lactic acidosis in HIV patients receiving highly active antiretroviral therapy

Chow YW, Leong CL, Chow HL, Hooi LS

Med J Malaysia, 2007 Mar;62(1):78-80.
PMID: 17682581

Exposure to highly active antiretroviral therapy (HAART) may lead to adverse effects related to mitochondrial toxicity such as lactic acidosis. We describe two cases of severe lactic acidosis in HIV-positive patients to illustrate the clinical symptoms and abnormal laboratory results associated with this condition. There is a lack of awareness about the risk factors for developing severe lactic acidosis and recognition of its onset with dire consequences.
Fulltext Outcome of 235 renal transplant recipients followed up at ministry of health hospitals in the State of Johor

Chan AYK, Hooi LS, Liu WJ

Med J Malaysia, 2001 Mar;56(1):82-7.
PMID: 11503302

Retrospective analysis was done on 235 recipients, 133 males and 102 females, who were transplanted between 25th September 1979 and 25th June 1999. 85.1% were Chinese, 7.7% were Indians and 7.2% Malays. 23% (54) were living related renal transplants (LRRT) all except 5 done at Hospital Kuala Lumpur. 60% (141) were living unrelated donor renal transplants (LURT) done in India. 17% (40) were cadaveric transplants (CADT) (all done in China except 2 at Hospital Kuala Lumpur and one in London). 97% (228) were first transplants. Primary renal disease was unknown in 69.4%, 17% (40) glomerulonephritis, 5.5% diabetic nephropathy and 8.1% 19 others. All were on prednisolone, 93.2% were on azathioprine and 96.6% were on cyclosporin A. The acute rejection rate was 23.4% (55 episodes). Patient survival was 88% at five years and patients alive with functioning graft was 84% at 5 years. LRRT had significantly better survival compared to LURT. 34 grafts were lost to chronic allograft nephropathy. 46 recipients died (33 died with functioning graft).
Economic evaluation of centre haemodialysis and continuous ambulatory peritoneal dialysis in Ministry of Health hospitals, Malaysia

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.
Fulltext Pregnancy in patients with renal transplants in Malaysia

Hooi LS, Rozina G, Wan Shaariah MY, Teo SM, Tan CHH, Bavanandan S, et al.

Med J Malaysia, 2003 Mar;58(1):27-36.
PMID: 14556324

There were 72 pregnancies in 46 renal transplants (RTs) between 1984 and 2001, 89% from living donors, 11% cadaveric. Mean age at RT was 26.9 +/- 4.3 years and at pregnancy 30.7 +/- 4.7 years. Mean time to pregnancy after RT was 4.5 +/- 3.1 years. 54% were unplanned. 45 (63%) resulted in surviving infants, 37% delivered by Caesarean section. 35% were premature. Mean birth weight was 2.38 +/- 0.57 kg. 64% were on cyclosporine. No patient had an acute rejection during pregnancy; 38% had pre-existing hypertension. Complications include urinary infection (13%), proteinuria (15%) and preeclampsia (15%). Mean serum creatinine before pregnancy was 112.7 +/- 32.6 umol/l, 1 year post-pregnancy it was 119.4 +/- 38.7. The mean time of follow up of mothers is 4.9 +/- 3.5 years. 10 year graft survival was 83% and patient survival 94%.
Fulltext Protocol for a randomised, open-label, parallel group, multicentre controlled study to evaluate the clinical performance and safety of Stay Safe Link compared with Stay Safe in patients with end-stage kidney disease on continuous ambulatory peritoneal dialysis

Mak WY, Ong LM, Goh BL, Bavanandan S, Mushahar L, Leong CT, et al.

BMJ Open, 2019 03 08;9(3):e024589.
PMID: 30852538 DOI: 10.1136/bmjopen-2018-024589

INTRODUCTION: Peritonitis is a major complication of continuous ambulatory peritoneal dialysis (CAPD), the risk of which is significantly influenced by the type of PD transfer system. Although the Y-disconnect and double-bag system is more efficient in preventing peritonitis compared with the spike system, little information is available to differentiate risks between different brands of the Y-disconnect double-bag system. A randomised controlled trial to evaluate the safety and efficacy of a newly introduced system is needed to provide the necessary clinical evidence to guide policy decision-making.
METHODS AND ANALYSIS: The study is an open-label randomised controlled trial. A total of 434 patients with end-stage renal disease undergoing CAPD will be enrolled and randomised to either the intervention group, Stay Safe Link, or the control group, Stay Safe. All study subjects will be followed up and monitored for 1 year. The primary safety outcome is the rate of peritonitis while the primary efficacy outcomes are the delivered dialysis dose and ultrafiltration volume.
ETHICS AND DISSEMINATION: The study was approved by the Medical Research Ethics Committee, National Institute of Health Malaysia. A written informed consent will be obtained from all participating subjects prior to any trial-related procedure and the study conduct will adhere strictly to Good Clinical Practice. The findings will be disseminated in a peer-reviewed journal.
TRIAL REGISTRATION NUMBER: NCT03177031; Pre-results.
Fulltext Acute Kidney Injury Risk Assessment: Differences and Similarities Between Resource-Limited and Resource-Rich Countries

Kashani K, Macedo E, Burdmann EA, Hooi LS, Khullar D, Bagga A, et al.

Kidney Int Rep, 2017 Jul;2(4):519-529.
PMID: 28845471 DOI: 10.1016/j.ekir.2017.03.014

The incidence of acute kidney injury (AKI) among acutely ill patients is reportedly very high and has vexing consequences on patient outcomes and health care systems. The risks and impact of AKI differ between developed and developing countries. Among developing countries, AKI occurs in young individuals with no or limited comorbidities, and is usually due to environmental causes, including infectious diseases. Although several risk factors have been identified for AKI in different settings, there is limited information on how risk assessment can be used at population and patient levels to improve care in patients with AKI, particularly in developing countries where significant health disparities may exist. The Acute Disease Quality Initiative consensus conference work group addressed the issue of identifying risk factors for AKI and provided recommendations for developing individualized risk stratification strategies to improve care. We proposed a 5-dimension, evidence-based categorization of AKI risk that allows clinicians and investigators to study, define, and implement individualized risk assessment tools for the region or country where they practice. These dimensions include environmental, socioeconomic and cultural factors, processes of care, exposures, and the inherent risks of AKI. We provide examples of these risks and describe approaches for risk assessments in the developing world. We anticipate that these recommendations will be useful for health care providers to plan and execute interventions to limit the impact of AKI on society and each individual patient. Using a modified Delphi process, this group reached consensus regarding several aspects of AKI risk stratification.
Audit on data accuracy of the Malaysian Dialysis and Transplant Registry (MDTR)

Thong KM, Jalalonmuhali M, Choo CL, Yee SY, Yahya R, Jeremiah PN, et al.

Med J Malaysia, 2024 Mar;79(2):234-236.
PMID: 38553931

Diabetes mellitus is the main aetiology of end stage kidney disease (ESKD) in Malaysia. However, there may be concerns of over-reporting of diabetes mellitus as the cause of ESKD in the Malaysian Dialysis and Transplant Registry (MDTR). The objective of this audit is to assess the accuracy of data collected in the MDTR. There were 151 centres/source data providers (SDP) with a total of 1977 patients included in this audit. The audit showed that 80.2% of doctors' records matched the MDTR data. The results were comparable with published validation studies in other countries.
Fulltext A population-based study measuring the prevalence of chronic kidney disease among adults in West Malaysia

Hooi LS, Ong LM, Ahmad G, Bavanandan S, Ahmad NA, Naidu BM, et al.

Kidney Int, 2013 Nov;84(5):1034-40.
PMID: 23760287 DOI: 10.1038/ki.2013.220

In this population-based study, we determine the prevalence of chronic kidney disease in West Malaysia in order to have accurate information for health-care planning. A sample of 876 individuals, representative of 15,147 respondents from the National Health and Morbidity Survey 2011, of the noninstitutionalized adult population (over 18 years old) in West Malaysia was studied. We measured the estimated glomerular filtration rate (eGFR) (CKD-EPI equation); albuminuria and stages of chronic kidney disease were derived from calibrated serum creatinine, age, gender and early morning urine albumin creatinine ratio. The prevalence of chronic kidney disease in this group was 9.07%. An estimated 4.16% had stage 1 chronic kidney disease (eGFR >90 ml/min per 1.73 m(2) and persistent albuminuria), 2.05% had stage 2 (eGFR 60-89 ml/min per 1.73 m(2) and persistent albuminuria), 2.26% had stage 3 (eGFR 30-59 ml/min per 1.73 m(2)), 0.24% had stage 4 (eGFR 15-29 ml/min per 1.73 m(2)), and 0.36% had stage 5 chronic kidney disease (eGFR <15 ml/min per 1.73 m(2)). Only 4% of respondents with chronic kidney disease were aware of their diagnosis. Risk factors included increased age, diabetes, and hypertension. Thus, chronic kidney disease in West Malaysia is common and, therefore, warrants early detection and treatment in order to potentially improve outcome.
Study name: National Health and Morbidity Survey (NHMS-2011)
HIV type 1 subtypes in Malaysia include B, C, and E

Brown TM, Robbins KE, Sinniah M, Saraswathy TS, Lee V, Hooi LS, et al.

AIDS Res Hum Retroviruses, 1996 Nov 20;12(17):1655-7.
PMID: 8947304
Nephrology in the Oceania-South East Asia region: perspectives and challenges

Kerr PG, Tran HTB, Ha Phan HA, Liew A, Hooi LS, Johnson DW, et al.

Kidney Int, 2018 09;94(3):465-470.
PMID: 30045813 DOI: 10.1016/j.kint.2018.05.014

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