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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, 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Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Goh CY, Visvanathan R, Leong CT, Hooi LS, Ch'ng CC, Yee SY, Abd Manaf KA, Mushahar L, Goh KW, Liew YF, Manocha AB, Ong LM. A prospective study of incidence and outcome of acute kidney injury among hospitalised patients in Malaysia (My-AKI). Med J Malaysia 2023; 78:733-742. [PMID: 38031214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
INTRODUCTION The incidence of acute kidney injury (AKI) among hospitalised patients has not been well studied in Malaysia. MATERIALS AND METHODS We conducted a prospective, multicentre study in seven hospitals in West Malaysia. All the adults admitted in March 2017 fulfilling Kidney Disease Improving Global Outcomes (KDIGO) criteria for AKI were included. RESULTS Of the 34,204 patients screened, 2,457 developed AKI (7.18%), 13.1% of which occurred in intensive care unit (ICU). There were 60.2% males with a mean age of 57.8 (±17.5) years. The most common comorbidities were hypertension (55.0%), diabetes (46.6%), ischaemic heart disease (15.1%) and chronic kidney disease (12.0%). The commonest causes of AKI were sepsis (41.7%), pre-renal (24.2%) and cardiorenal syndrome (10.8%). Nephrotoxin exposure was reported in 31%. At diagnosis, the proportion of AKI stages 1, 2 and 3 were 79.1%, 9.7%, 11.2%, respectively. Referral to nephrologists was reported in 16.5%. Dialysis was required in 176 (7.2%) patients and 55.6% were performed in the ICU. Acidosis (46.2%), uraemia (31.6%) and electrolyte disturbance (11.1%) were the commonest indications. Continuous renal replacement therapy (CRRT) was required in 14%. The average length of hospital stay was 9.5 days. In-hospital mortality was 16.4%. Among survivors, full and partial renal recovery was seen in 74.7% and 16.4% respectively while 8.9% failed to recover. After a mean follow-up of 13.7 months, 593 (30.2%) of survivors died and 38 (1.9%) initiated chronic dialysis. Mortality was highest among those with malignancies (Hazard Ratio, HR 2.14), chronic liver disease (HR 2.13), neurological disease (HR 1.56) and cardiovascular disease (HR 1.17). CONCLUSION AKI is common in hospitalised patients and is with associated high mortality during and after hospitalisation.
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Affiliation(s)
- C Y Goh
- Selayang Hospital, Department of Nephrology, Malaysia.
| | - R Visvanathan
- Kuala Lumpur Hospital, Department of Nephrology, Malaysia
| | - C T Leong
- Clinical Research Centre, Penang Hospital, Malaysia
| | - L S Hooi
- Sultanah Aminah Hospital, Department of Medicine, Johor Bahru, Malaysia
| | - C C Ch'ng
- Clinical Research Centre, Penang Hospital, Malaysia
| | - S Y Yee
- Kuala Lumpur Hospital, Department of Nephrology, Malaysia
| | - K A Abd Manaf
- Tengku Ampuan Rahimah Hospital, Department of Nephrology, Klang, Malaysia
| | - L Mushahar
- Tuanku Ja'afar Hospital, Department of Nephrology, Seremban, Malaysia
| | - K W Goh
- Serdang Hospital, Department of Nephrology, Malaysia
| | - Y F Liew
- Penang Hospital, Department of Medicine, Malaysia
| | - A B Manocha
- Seberang Jaya Hospital, Department of Medicine, Malaysia
| | - L M Ong
- Clinical Research Centre, Penang Hospital, Malaysia.
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Ch'ng CC, Ong LM, Wong KM. Changes in blood pressure after Messenger RNA COVID-19 vaccination. Med J Malaysia 2022; 77:768-770. [PMID: 36448398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The SARS-Cov-2 (COVID-19) vaccination began in Malaysia in March 2021 among frontliners and healthcare workers. Everyone at our hospital received the tozinameran (BNT162b2) Messenger RNA COVID-19 vaccine. Although hypertension has not been mentioned explicitly as an adverse event, concerns were raised after some healthcare staff observed an increase in their blood pressures. In response to that, the hospital began collecting vital signs during second-dose appointments. Vital signs were measured before, immediately after and 15-30 minutes postvaccination. We report our findings from the institution-wide effort to monitor changes in blood pressure among its staff and respond to any possible unwanted events.
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Affiliation(s)
- C C Ch'ng
- Hospital Pulau Pinang, Clinical Research Centre, Penang, Malaysia.
| | - L M Ong
- Hospital Pulau Pinang, Department of Medicine, Penang, Malaysia
| | - K M Wong
- Hospital Pulau Pinang, Penang, Malaysia
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Kow FP, Adlina B, Sivasangari S, Punithavathi N, Ng KK, Ang AH, Ong LM. The impact of music guided deep breathing exercise on blood pressure control - A participant blinded randomised controlled study. Med J Malaysia 2018; 73:233-238. [PMID: 30121686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION As pharmacological treatment of hypertension has become a burden worldwide, the study looked into nonpharmacological ways of reducing blood pressure. The objective was to determine if music guided, slow and deep breathing will reduce the blood pressure among patients with hypertension in eight weeks. METHODS A participant blinded, multi-centre, randomised controlled trial was conducted in which the participants in the intervention group (IG) practiced deep breathing exercise guided by sound cues and those in the control group (CG) listened to the music. The primary end point was reduction in blood pressure at eight weeks. RESULTS 87 patients, 46 males and 41 females with mean age of 61.1 years were recruited and 93.1% of them successfully completed the study. There was significant reduction in systolic and diastolic Blood Pressure from baseline by 8 weeks in both groups. The reduction in Mean systolic blood pressure (SBP) in the control arm was 10.5mmHg compared to 8.3mmHg (p<0.001) in intervention group. Diastolic blood pressure (DBP) reduction in control and intervention groups were 5.2 mmHg (p<0.001) and 5.6 mmHg (p<0.001) respectively. The absolute difference in SBP reduction from baseline in IG & CG was -2.2 (95%CI: -7.8 to 3.5) and DBP was -0.4 (95%CI: -2.9 to 3.6). However, blood pressure reduction between the two groups was not significant. CONCLUSIONS Both listening to music and deep breathing exercise were associated with a clinically significant reduction in SBP and DBP. However, deep breathing exercise did not augment the benefit of music in reducing BP.
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Affiliation(s)
- F P Kow
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia.
| | - B Adlina
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
| | - S Sivasangari
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
| | - N Punithavathi
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
| | - K K Ng
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
| | - A H Ang
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
| | - L M Ong
- Hospital Pulau Pinang, Clinical Research Centre, Georgetown, Pulau Pinang, Malaysia
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Merican H, Lee YF, Nallusamy R, Ong LM, Nazir PM, Sham H, Ismail N, McLaws M. Malaysia: can ABHR purchasing data used to measure hand hygiene compliance? Antimicrob Resist Infect Control 2015. [PMCID: PMC4475172 DOI: 10.1186/2047-2994-4-s1-p296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Punithavathi N, Ong LM, Irfhan Ali HA, Mohd Izmi IA, Dharminy T, Ang AH, Hadzlinda Z, Sivasangari S. A Pilot Randomized Control Cross over Study Evaluating the Effectiveness and Safety of Mechanical Percussor Compared with Conventional Chest Physiotherapy in Adults with Productive Cough. Med J Malaysia 2014; 69:16-20. [PMID: 24814623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Conventional Chest Physiotherapy (CCPT) remains the mainstay of treatment for sputum mobilization in patients with productive cough such as bronchiectasis and "Chronic Obstructive Airway Disease" (COPD). However CCPT is time consuming requires the assistance of a physiotherapist and limits the independence of the patient. Mechanical percussors which are electrical devices used to provide percussion to the external chest wall might provide autonomy and greater compliance. We compared safety and efficacy of a mechanical chest percusser devised by Formedic Technology with conventional chest percussion. METHODS Twenty patients (mean age 64years) were randomly assigned to receive either CCPT or mechanical percussor on the first day and crossed over by "Latin square randomisation" to alternative treatment for 6 consecutive days and the amount of sputum expectorated was compared by dry and wet weight. Adverse events and willingness to use was assessed by a home diary and a questionnaire. RESULTS There were 13 males and 7 females, eight diagnosed as bronchiectasis and 12 COPD. The mean dry weight of sputum induced by CCPT (0.54g ± 0.32) was significantly more compared with MP (0.40g + 0.11); p-value = 0.002. The mean wet weight of sputum with CCPT (10.71g ± 8.70) was also significantly more compared with MP (5.99g ± 4.5); p-value < 0.001. There were no significant difference in adverse events and majority of patients were willing to use the device by themselves. CONCLUSION The mechanical percussor although produces less sputum is well tolerated and can be a useful adjunct to CCPT.
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Affiliation(s)
- N Punithavathi
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - L M Ong
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - H A Irfhan Ali
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - I A Mohd Izmi
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - T Dharminy
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - A H Ang
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - Z Hadzlinda
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
| | - S Sivasangari
- Hospital Pulau Pinang, Clinical Research Centre, Jalan residency, 10990 Penang, Malaysia
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Ong HT, Ong LM, Tan TE, Chean KY. Cardiovascular effects of common analgesics. Med J Malaysia 2013; 68:189-194. [PMID: 23629578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The clycoxygenase (COX) enzyme forms locally active prostaglandins responsible for producing inflammation and pain. Classical non-steroidal anti-inflammatory drugs (NSAID) inhibit the COX-2 enzyme that produces inflammatory prostaglandins as well as the COX-1 enzyme that produces gastric mucosa protecting prostaglandins. By specifically inhibiting only the COX-2 enzyme, coxibs thus reduce pain but do not damage the gastric mucosa. However, COX-2 at the vascular endothelium produces antithrombotic prostaglandins, and so by inhibiting COX-2 enzyme, the coxibs promote thrombosis. Rofecoxib and valdecoxib have been withdrawn because of the adverse cardiovascular events they induce. Amongst presently available coxibs cardiovascular risk is highest with enterocoxib and lowest with celecoxib. NSAIDS also increase cardiovascular events, the risk is highest with diclofenac and lowest with naproxen. Paracetamol and corticosteroids induce hypertension, while steroids also adversely affect the heart from metabolic change as well as fluid retention. Aspirin is an anti-thrombotic agent because of its ability to inhibit the COX-1 enzyme that produces the pro-aggregatory thromboxane. However, it increases gastrointestinal bleeding, can promote fluid retention and is nephrotoxic, all of which may lead to adverse cardiovascular outcomes. Patients at especially high risk of cardiovascular events from analgesic use include the elderly, and those with heart failure, hypertension, rheumatoid arthritis, chronic renal disease, chronic obstructive airway disease and previous myocardial infarction, cerebrovascular disease or peripheral vascular disease. Adverse cardiovascular events can occur within a week of initiation of analgesic treatment.
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Affiliation(s)
- H T Ong
- HT Ong Heart Clinic, 251C Burma Road, 10350 Penang, Malaysia.
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Ong HT, Ong LM, Kow FP. Beta-blockers for heart failure: an evidence based review answering practical therapeutic questions. Med J Malaysia 2012; 67:7-11. [PMID: 22582541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Beta-blockers are underutilised in heart failure because clinicians may be unsure whether all beta-blockers are useful, how therapy should be initiated and whether beta-blockers are contraindicated in some patients. Bisoprolol, carvedilol and metoprolol succinate have been clearly proven to reduce mortality and hospitalisation in patients with Class II to IV heart failure; limited evidence also support short-acting metoprolol tartrate and nebivolol. Initiating dose should be very low (1.25 mg bisoprolol, 3.125 mg carvedilol, 12.5 mg metoprolol succinate) and increased gradually over weeks. Treatment benefit appears proportional to magnitude of heart rate reduction and thus target dose should be the maximum tolerated for adequate bradycardia. Even in decompensated heart failure or those with coexisting bronchospasm, beta-blockers are not contraindicated although the dose may have to be reduced or withheld temporarily. The consistent trial data should reassure clinicians and encourage them to confidently initiate beta blockers in patients with systolic heart failure.
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Affiliation(s)
- H T Ong
- HT Ong Heart Clinic, Cardiology, 251C Burma Road, Georgetown, Penang 10350, Malaysia.
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Ong LM, Punithavathi N, Lena YLL, Mahanim O, Leekha S. Long-term efficacy and safety of a generic atorvastatin in usual clinical care setting. Med J Malaysia 2011; 66:214-219. [PMID: 22111443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A multicentre study was conducted to assess the long term efficacy and safety of a generic atorvastatin in the treatment of primary hypercholesterolaemia. Eighty five patients who received 10mg or 20 mg of atorvastatin for 8 weeks depending on target cholesterol goal were followed up by their own physicians and had final evaluation at 52 weeks. Reduction in mean low density Lipoprotein (LDL-C) was 36.5%, 37.9% and 32.2% at weeks 4, 8 and 52 respectively. LDL-C target was maintained in 81% and 69% of patients at week 8 and 52 respectively without drug related serious adverse events. Generic atorvastatin is safe and effective in usual clinical care setting.
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Ong HT, Oung LS, Ong LM, Tan KPS. Hypertension in a residential home for the elderly in Penang, Malaysia. Med J Malaysia 2010; 65:18-20. [PMID: 21265241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A study of residents at the Silver Jubilee Home for the Aged was conducted to determine the prevalence, awareness and control of hypertension in this elderly community in Penang, Malaysia. Prevalence of hypertension was 36%, with 81% of patients being initially aware of this diagnosis. This relatively low hypertension prevalence rate may be because residents have a fairly sheltered lifestyle with less social stress and a daily routine that incorporates adequate exercise. Similarly, the high hypertension awareness rate compared to reported figures in the community may be because residents are more regularly monitored by the attending medical care-givers. At the beginning of the study, only 34% of hypertensive patients were well controlled with a blood pressure less than 140/90 mm Hg. This proportion rose to 53% at the end of study period. Compliance is better at a residential home because medication is served by their care-givers and cost is absorbed in this charitable organization. Our study suggests that hypertension awareness and control can be reasonable for the elderly in a residential home.
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Affiliation(s)
- H T Ong
- HT Ong Heart Clinic, 251C, Burma Road, 10350 Penang.
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Punithavathi N, Ong LM, Lena YLL, Leekha S. A multicenter study in Malaysia to determine the efficacy and safety of a generic atorvastatin. Med J Malaysia 2009; 64:150-154. [PMID: 20058576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A multicenter study was conducted to assess the efficacy of a generic form of Atorvastatin (Ranbaxy's Storvas) in the treatment of Primary Hypercholesterolemia. One hundred and nineteen patients were given 10 mg of Storvas for four weeks and increased to 20 mg if target LDL-Cholesterol was not achieved. LDL-Cholesterol was reduced by 36.6% at four weeks and 37.5% at eight weeks from baseline. Total cholesterol and triglycerides were significantly reduced. There were no drug-related serious adverse events. We conclude that the generic atorvastatin is safe and effective in the treatment of primary hypercholesterolaemia and the results are comparable to published data on innovator atorvastatin.
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Affiliation(s)
- N Punithavathi
- Clinical Research Centre, Penang Hospital, Residency Road 10990 Pulau Pinang, Malaysia
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Lim YN, Lim TO, Lee DG, Wong HS, Ong LM, Shaariah W, Rozina G, Morad Z. A report of the Malaysian dialysis registry of the National Renal Registry, Malaysia. Med J Malaysia 2008; 63 Suppl C:5-8. [PMID: 19230240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The Malaysian National Renal Registry was set up in 1992 to collect data for patients on renal replacement therapy (RRT). We present here the report of the Malaysian dialysis registry. The objectives of this papar are: (1) To examine the overall provision of dialysis treatment in Malaysia and its trend from 1980 to 2006. (2) To assess the treatment rate according to the states in the country. (3) To describe the method, location and funding of dialysis. (4) To characterise the patients accepted for dialysis treatment. (5) To analyze the outcomes of the dialysis treatment. Data on patients receiving dialysis treatment were collected at initiation of dialysis, at the time of any significant outcome, as well as yearly. The number of dialysis patients increased from 59 in 1980 to almost 15,000 in 2006. The dialysis acceptance rate increased from 3 per million population in 1980 to 116 per million population in 2006, and the prevalence rate from 4 to 550 per million population over the same period. The economically advantaged states of Malaysia had much higher dialysis treatment rates compared to the less economically advanced states. Eighty to 90% of new dialysis patients were accepted into centre haemodialysis (HD), and the rest into the chronic ambulatory peritoneal dialysis (CAPD) programme. The government provided about half of the funding for dialysis treatment. Patients older than 55 years accounted for the largest proportion of new patients on dialysis since the 1990s. Diabetes mellitus has been the main cause of ESRD and accounted for more than 50% of new ESRD since 2002. Annual death rate averaged about 10% on HD and 15% on CAPD. The unadjusted 5-year patient survival on both HD and CAPD was about 80%. Fifty percent of dialysis patients reported very good median QoL index score. About 70% of dialysis patients were about to work full or part time. There has been a very rapid growth of dialysis provision in Malaysia particularly in the older age groups. ESRD caused by diabetes mellitus, despite being a preventable and treatable cause of ESRD--has increased and accounted for more than 50% of incident dialysis patients. Death and survival rates on dialysis are comparable to those from other countries.
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Affiliation(s)
- Y N Lim
- National Renal Registry Malaysia, 2nd Floor, MMA House, 124, Jalan Pahang, 50286 Kuala Lumpur, Malaysia
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Abstract
In this study, the relationship between (a) doctor's and patients' communication and (b) doctors' patient-centredness during the oncological consultation and patients' quality of life and satisfaction was examined. Consultations of 96 consecutive cancer patients were recorded and content analysed by means of the Roter Interaction Analysis System. Data collection (mailed questionnaires) took place after 1 week and after 3 months. Oncologists' behaviours were unrelated to patients' quality of life. Their socio-emotional behaviours related to both patients' visit-specific and global satisfaction. Patients' behaviour related to both patient outcomes although mostly to satisfaction. Multiple regression analyses showed that patients' quality of life and satisfaction were most clearly predicted by the affective quality of the consultation. Surprisingly, oncologists' patient-centredness was negatively related to patients' global satisfaction after 3 months. In summary, doctor-patient communication during the oncological consultation is related to patients' quality of life and satisfaction. The affective quality of the consultation seems to be the most important factor in determining these outcomes.
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Affiliation(s)
- L M Ong
- Academic Medical Center, Department of Medical Psychology J4-408, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands.
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Ong LM, Visser MR, Lammes FB, van Der Velden J, Kuenen BC, de Haes JC. Effect of providing cancer patients with the audiotaped initial consultation on satisfaction, recall, and quality of life: a randomized, double-blind study. J Clin Oncol 2000; 18:3052-60. [PMID: 10944140 DOI: 10.1200/jco.2000.18.16.3052] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE By means of a randomized double-blind study, the effect of providing taped initial consultations on cancer patients' satisfaction, recall, and quality of life was investigated. PATIENTS AND METHODS Consecutive cancer patients referred to either the gynecology or medical oncology outpatient clinic were eligible. Initial consultations were audiotaped. Patients were either provided with the tape (experimental group) or not (control group). Baseline variables included sociodemographics, preferences for information, coping styles, and clinical characteristics. Follow-up (after 1 week and 3 months) variables included attitudes toward the intervention, satisfaction, recall, and quality of life. Assessments took place through mailed questionnaires and telephone interviews. RESULTS Two hundred one patients were included (response, 71%), 105 in the experimental group and 96 in the control group. Most patients (75%) listened to the tape, the majority of which (73%) listened with others. Almost all patients, both in the experimental group (96%) and control group (98%) were positive about the intervention. Expectations were confirmed; patients provided with the tape were more satisfied (P <.05) and recalled more information (P <.01) than patients without the tape. The intervention did not have an effect on quality of life. An interaction effect was found between the intervention and patients' age on satisfaction with the taped consultation (P <.01) and recall of diagnostic information (P <.01); access to tapes seems more helpful in enhancing satisfaction in younger patients and recall of diagnostic information in older patients. CONCLUSION Cancer patients and their families value the taped initial consultation. This intervention enhances their satisfaction and improves their recall of information. Tapes seem more helpful in enhancing satisfaction in younger patients and recall of diagnostic information in older patients.
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Affiliation(s)
- L M Ong
- Department of Medical Psychology, Department of Obstetrics/Gynaecology, Academic Medical Center, Amsterdam, the Netherlands.
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Lim TO, Lim YN, Wong HS, Ahmad G, Singam TS, Morad Z, Suleiman AB, Rozina G, Ong LM, Hooi LS, Shaariah W, Tan CC, Loo CS. Cost effectiveness evaluation of the Ministry of Health Malaysia dialysis programme. Med J Malaysia 1999; 54:442-52. [PMID: 11072461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
We determine the cost effectiveness of centre and home haemodialysis (HD), continuous ambulatory peritoneal dialysis (CAPD) and intermittent peritoneal dialysis (IPD) treatment in the Ministry of Health (MOH) programme. The viewpoint taken for this evaluation is that of MOH. Cost categories identified were capital cost, dialysis operational cost, medical cost and general hospital cost. Cost estimates were mostly based on actual resource utilisation. Life years saved were estimated based on Dialysis Registry data on 2480 HD and 732 CAPD patients. Overall, the cost-effectiveness ratio (CER) of centre HD was RM21620/life year saved. Those of home HD, CAPD and IPD were RM23375, RM30469 and RM36016 respectively. Sensitivity analyses did not change the ranking of the CER. We conclude the MOH dialysis programme was cost-effective, and among the various dialysis modalities centre HD was the most cost-effective.
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Affiliation(s)
- T O Lim
- Department of Nephrology, Hospital Kuala Lumpur
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Lim TO, Lim YN, Wong HS, Ahmad G, Singam TS, Morad Z, Suleiman AB, Rozina G, Ong LM, Hooi LS, Shaariah W, Tan CC, Loo CS. Outcome assessment of the Ministry of Health Malaysia dialysis programme. Med J Malaysia 1999; 54:459-70. [PMID: 11072463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
We describe the outcomes on haemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) provided by the Ministry of Health (MOH). The assessment was based on data from the Malaysian Dialysis Registry on 2480 HD and 732 CAPD patients who commenced dialysis between 1980 and 1996. Young patients (age < 40) have remarkable long term survival (life expectancies of 16 years on HD, 18 years on CAPD). Adjusting for background mortality, relative survival of older patients was as good as younger ones. Diabetics did poorly. 52% of HD and 26% of CAPD patients were employed in 1996. 71% of HD patients scored 10(normal) on QL index (a measure of quality of life) while 60% of CAPD patients have similar score. Differences in rehabilitation and QL index scores by age, gender and diabetes were also observed. Outcomes of dialysis in the MOH programme are reassuring.
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Affiliation(s)
- T O Lim
- Department of Nephrology, Hospital Kuala Lumpur
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Abstract
Monitoring and blunting styles have become relevant concepts regarding their potential impact on patients' and doctors' behaviors. The present study aimed at investigating the relation between cancer patients' coping styles and doctor-patient communication and global affect. Coping styles were assessed by means of the Threatening Medical Situations Inventory (TMSI). Since a shortened version of the TMSI was used, the validity of this instrument was also evaluated. First, it was examined whether the two factor structure of the original TMSI could be confirmed in our version. Then, the relation between coping style and patients' preferences for information and participation in decision-making was evaluated. Second, the relation between monitoring and blunting and patients' age, sex, education, quality of life and prognosis was investigated. Finally, the relation between patients' coping styles and communicative behaviors and global affect of both patients and physicians during the initial oncological consultation was examined. Patients (N = 123) visited their gynaecologist or medical oncologist for an initial discussion of possible treatment. Patients' coping styles, socio-demographics, preference for information and participation in decision-making, quality of life and prognosis were assessed by postal questionnaire prior to the visit to the outpatient clinic. The consultation was audiotaped and analysed according to Roter's Interaction Analysis System, to identify instrumental and affective communicative behaviors of both patients and physicians. The two factor structure of the TMSI could be confirmed. A monitoring style was related to a preference for detailed information (r = 0.23) and participation in medical decision-making (r = 0.23). A monitoring style was also related to patient question-asking (r = 0.25) and patient dominance (r = 0.23). To conclude, the validity of the shortened TMSI is satisfactory. Also, cancer patients' coping styles are not related to other personal and disease characteristics. Further, a monitoring style seems to have an impact on patients' question-asking and dominance during the oncological consultation.
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Affiliation(s)
- L M Ong
- Department of Medical Psychology, Academic Medical Center, Amsterdam, The Netherlands.
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Ong LM, Visser MR, Kruyver IP, Bensing JM, van den Brink-Muinen A, Stouthard JM, Lammes FB, de Haes JC. The Roter Interaction Analysis System (RIAS) in oncological consultations: psychometric properties. Psychooncology 1998; 7:387-401. [PMID: 9809330 DOI: 10.1002/(sici)1099-1611(1998090)7:5<387::aid-pon316>3.0.co;2-g] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
One of the most frequently used systems to analyse doctor-patient communication is the Roter Interaction Analysis System (RIAS). However, it has mostly been applied and evaluated in primary care settings. Two studies are presented in which the psychometric properties of the RIAS are investigated in an oncological setting. In the first study (N = 25) the feasibility, inter-rater reliability and content validity of the RIAS was investigated. In the second study, we evaluated the discriminant validity of the RIAS. Results of the first study showed that coding of tapes was more time consuming than indicated by the Roter manual. The inter-rater reliability proved to be high for both physician communication (0.68-1) and patient communication (0.60-1). The content validity proved to be acceptable: all utterances could be classified. However, coding dilemmas regarding affective communication occurred. The RIAS provided no option to classify communication of a third person present. Some communication categories were never or rarely used. Results of the second study indicate that the RIAS was able to discriminate between communicative behaviors in oncological consultations (N = 60) and three different GP-samples (random-GP sample N = 329, hypertension sample N = 103, gynaecology sample N = 65). To conclude, the psychometric properties of the RIAS are satisfactory in an oncological setting.
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Affiliation(s)
- L M Ong
- Academic Medical Center, Department of Medical Psychology, Amsterdam, The Netherlands.
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Abstract
Communication can be seen as the main ingredient in medical care. In reviewing doctor-patient communication, the following topics are addressed: (1) different purposes of medical communication; (2) analysis of doctor-patient communication; (3) specific communicative behaviors; (4) the influence of communicative behaviors on patient outcomes; and (5) concluding remarks. Three different purposes of communication are identified, namely: (a) creating a good inter-personal relationship; (b) exchanging information; and (c) making treatment-related decisions. Communication during medical encounters can be analyzed by using different interaction analysis systems (IAS). These systems differ with regard to their clinical relevance, observational strategy, reliability/validity and channels of communicative behavior. Several communicative behaviors that occur in consultations are discussed: instrumental (cure oriented) vs affective (care oriented) behavior, verbal vs non-verbal behavior, privacy behavior, high vs low controlling behavior, and medical vs everyday language vocabularies. Consequences of specific physician behaviors on certain patient outcomes, namely: satisfaction, compliance/adherence to treatment, recall and understanding of information, and health status/psychiatric morbidity are described. Finally, a framework relating background, process and outcome variables is presented.
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Affiliation(s)
- L M Ong
- Department of Medical Psychology, Academic Medical Hospital, Amsterdam, The Netherlands
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Ong LM, de Haes JC, Kruyver IP, de Reijke TM, Lammes FB. [Providing patients with an audio recording of the outpatient oncological consultation; experiences of patients and physicians]. Ned Tijdschr Geneeskd 1995; 139:77-80. [PMID: 7838223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Gaining insight into the experiences of physicians and patients who were provided with an audiotape of an oncological consultation. DESIGN Questionnaire study. SETTING Academic Medical Hospital, Amsterdam. METHOD Consultations with 30 consecutive patients referred to the gynaecology or urology outpatient clinic for an initial consultation regarding the diagnosis and (or) treatment policy were taped. Afterwards, patients took the tapes home. The following week they were phoned and asked what they had done with the tape and how they appreciated the intervention. By means of a questionnaire the physicians (n = 6) were asked about their experiences. RESULTS Two patient could not be reached. Twenty-three out of 28 patients had listened to the tape, mostly together with others (spouse, relatives). Twenty-six out of 28 patients were positive about implementation of this intervention. According to most patients the tape contained information they had forgotten. Most patients found the tape contained reassuring information. Physicians regarded the optimal transmission of information achieved by this intervention as an advantage. Three out of six saw possible misinterpretation of the imparted information as a disadvantage. For some physicians, the taping of consultations led to more careful phrasing. Most physicians saw no logistical difficulties. In general, participation in the study did not take any extra time. CONCLUSION This first study shows that both cancer patients and physicians find it useful to provide patients with an audiotape of the initial consultation.
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Affiliation(s)
- L M Ong
- Afd. Medische Psychologie, Academisch Medisch Centrum, Amsterdam
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