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McMullen L, Drak D, Basu G, Coates PT, Goodman DJ, Graver A, Isbel N, Lim WH, Luxton G, Sciberras F, Toussaint ND, Wong G, Gracey DM. Kidney transplantation in people living with human immunodeficiency virus: An overview of the Australian experience. Nephrology (Carlton) 2024; 29:34-38. [PMID: 37605476 DOI: 10.1111/nep.14229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/23/2023]
Abstract
Kidney transplantation in people living with HIV (PLWHIV) is occurring with increasing frequency. Limited international data suggest comparable patient and graft survival in kidney transplant recipients with and without HIV. All PLWHIV aged ≥18 years who received a kidney transplant between 2000 and 2020 were identified by retrospective data initially extracted from Australia and New Zealand Dialysis and Transplant Registry (ANZDATA), with additional HIV-specific clinical data extracted from linked local health-care records. Twenty-five PLWHIV and kidney failure received their first kidney transplant in Australia between January 2000 and December 2020. Majority were male (85%), with median age 54 years (interquartile range, IQR 43-57). Focal segmental glomerulosclerosis was the most common primary kidney disease (20%), followed by polycystic kidney disease (16%). 80% of patients underwent induction with basiliximab and none with anti-thymocyte globulin (ATG). Participants were followed for median time of 3.5 years (IQR 2.0-6.5). Acute rejection occurred in 24% of patients. Two patients lost their allografts and three died. Virological escape occurred in 28% of patients, with a maximum viral load of 190 copies/mL. In conclusion, kidney transplantation in PLWHIV in Australia is occurring with increasing frequency. Acute rejection is more common than in Australia's general transplant population, but this does not appear to be associated with higher rates of graft failure or mortality out to four years.
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Affiliation(s)
- Lucy McMullen
- Renal Medicine Unit, Royal Prince Alfred Hospital, Sydney, Australia
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Douglas Drak
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Gopal Basu
- Renal Medicine Unit, The Alfred, Melbourne, Victoria, Australia
- Monash University (Central Clinical School), Melbourne, Victoria, Australia
| | - P Toby Coates
- Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia
- University of Adelaide, Adelaide, South Australia, Australia
| | - David J Goodman
- Department of Nephrology, St Vincent's Hospital, Fitzroy, Australia
| | - Alison Graver
- Kidney Transplant Service, Department of Nephrology, Austin Health, Heidelberg, Australia
| | - Nicole Isbel
- Department of Kidney Medicine, Princess Alexandra Hospital, Brisbane, Australia
- University of Queensland, Brisbane, Queensland, Australia
| | - Wai H Lim
- Medical School, University of Western Australia, Perth, Australia
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Perth, Australia
| | - Grant Luxton
- Department of Nephrology, Prince of Wales Hospital, Sydney, Australia
| | - Frederika Sciberras
- Western Renal Services, Western Sydney Local Health District, Sydney, Australia
| | - Nigel D Toussaint
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Victoria, Australia
- Department of Medicine (RMH), University of Melbourne, Parkville, Victoria, Australia
| | - Germaine Wong
- Sydney School of Public Health, University of Sydney, Sydney, New South Wales, Australia
- Centre for Kidney Research, Kids Research Institute, The Children's Hospital at Westmead, Westmead, New South Wales, Australia
- Centre for Transplant and Renal Research, Westmead Hospital, Westmead, New South Wales, Australia
| | - David M Gracey
- Renal Medicine Unit, Royal Prince Alfred Hospital, Sydney, Australia
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, Australia
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Drak D, Fulcher J, Kilian J, Chong JJH, Grover R, Sindone AP, Adams M, Lattimore JD, Keech AC. Guideline-based audit of the hospital management of heart failure with reduced ejection fraction. Intern Med J 2023; 53:1595-1601. [PMID: 35666643 DOI: 10.1111/imj.15830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/26/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Heart failure is a major burden in Australia in terms of morbidity, mortality and healthcare expenditure. Multiple evidence-based therapies are recommended for heart failure with reduced ejection fraction (HFrEF), but data on physician adherence to therapy guidelines are limited. AIM To compare use of HFrEF therapies against current evidence-based guidelines in an Australian hospital inpatient population. METHODS A retrospective review of patients admitted with a principal diagnosis of HFrEF across six metropolitan hospitals in Sydney, Australia, between January 2015 and June 2016. Use of medical and device therapies was compared with guideline recommendations using individual patient indications/contraindications. Readmission and mortality data were collected for a 1-year period following the admission. RESULTS Of the 1028 HFrEF patients identified, 39 were being managed with palliative intent, leaving 989 patients for the primary analysis. Use of beta-blockers (87.7% actual use/93.6% recommended use) and diuretics (88.4%/99.3%) was high among eligible patients. There were large evidence-practice gaps for angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers (ACEI/ARB; 66.4%/89.0%) and aldosterone antagonists (41.0%/77.1%). In absolute terms, use of these therapies each increased by over 11% from admission. Ivabradine (11.5%/21.2%), automated internal cardiac defibrillators (29.5%/66.1%) and cardiac resynchronisation therapy (13.1%/28.7%) were used in a minority of eligible patients. Over the 1-year follow-up period, the mortality rate was 14.8%, and 44.2% of patients were readmitted to hospital at least once. CONCLUSION Hospitalisation is a key mechanism for initiation of HFrEF therapies. The large evidence-practice gaps for ACEI/ARB and aldosterone antagonists represent potential avenues for improved HFrEF management.
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Affiliation(s)
- Douglas Drak
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Jordan Fulcher
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, NHMRC Clinical Trials Centre, Sydney, New South Wales, Australia
| | - Jens Kilian
- Department of Cardiology, Bankstown-Lidcombe Hospital, Sydney, New South Wales, Australia
| | - James J H Chong
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Westmead Hospital, Sydney, New South Wales, Australia
- Centre for Heart Research, Westmead Institute for Medical Research, Sydney, New South Wales, Australia
| | - Rominder Grover
- Sydney Local Health District, Canterbury Hospital, Sydney, New South Wales, Australia
| | - Andrew P Sindone
- Heart Failure Unit, Department of Cardiac Rehabilitation, Concord Hospital, Sydney, New South Wales, Australia
| | - Mark Adams
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Jo-Dee Lattimore
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Anthony C Keech
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, NHMRC Clinical Trials Centre, Sydney, New South Wales, Australia
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Hunter-Dickson M, Drak D, Anderson M, Shamu T, Chimbetete C, Dahwa R, Gracey DM. Comparison of CG, CKD-EPI[AS] and CKD-EPI[ASR] equations to estimate glomerular filtration rate and predict mortality in treatment naïve people living with HIV in Zimbabwe. BMC Nephrol 2023; 24:129. [PMID: 37158821 PMCID: PMC10169375 DOI: 10.1186/s12882-023-03159-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/09/2023] [Indexed: 05/10/2023] Open
Abstract
BACKGROUND Renal impairment in people living with HIV (PWH) in Sub-Saharan Africa is common and associated with increased morbidity and mortality. The ideal equation to estimate glomerular filtration rate (eGFR) in this population remains unclear. That which best predicts clinical risk may be the most appropriate while validation studies are awaited. Here we compare the Cockcroft-Gault (CG), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI[ASR]) and the CKD-EPI equation with the race coefficient removed (CKD-EPI[AS]), in a population of anti-retroviral therapy (ART) naïve PWH in Zimbabwe to assess which equation best predicts mortality. METHODS A retrospective cohort study of treatment naïve PWH at the Newlands Clinic in Harare, Zimbabwe was completed. The study included all patients commencing ART between 2007 and 2019. Predictors of mortality were assessed by multivariable logistic regression. RESULTS A total of 2991 patients were followed-up for a median of 4.6 years. The cohort was 62.1% female, with 26.1% of patients having at least one comorbidity. The CG equation identified 21.6% of patients as having renal impairment compared with 17.6% with CKD-EPI[AS] and 9.3% with CKD-EPI[ASR]. There was a mortality rate of 9.1% across the study period. The highest mortality risk was seen in those with renal impairment as determined by the CKD-EPI[ASR] equation for both eGFR < 90 and eGFR < 60 with OR 2.97 (95%CI 1.86-4.76) and OR 10.6 (95%CI 3.15-18.04) respectively. CONCLUSION In treatment naïve PWH in Zimbabwe, the CKD-EPI[ASR] equation identifies patients at highest risk of mortality when compared to the CKD-EPI[AS] and CG equations.
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Affiliation(s)
| | - Douglas Drak
- Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney, Australia
| | - Matthew Anderson
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | | | | | - Rumbidzai Dahwa
- Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - David M Gracey
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
- Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney, Australia
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Byers BW, Drak D, Shamu T, Chimbetete C, Dahwa R, Gracey DM. Comparison of predictors for early and late mortality in adults commencing HIV antiretroviral therapy in Zimbabwe: a retrospective cohort study. AIDS Res Ther 2022; 19:23. [PMID: 35643492 PMCID: PMC9148446 DOI: 10.1186/s12981-022-00445-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/26/2022] [Indexed: 11/28/2022] Open
Abstract
Background People living with HIV (PLWHIV) commencing antiretroviral therapy (ART) in sub-Saharan Africa experience significant mortality within the first year. Previously, identified risk factors for mortality may be biased towards these patients, as compared to those who experience late mortality. Aim To compare risk factors for early and late mortality in PLWHIV commencing ART. Methods A retrospective cohort study of ART-naïve patients aged ≥ 18 years from an outpatient HIV clinic in Zimbabwe. Data were collected between January 2010 and January 2019. Predictors for early (≤ 1 year) and late mortality (> 1 year) were determined by multivariable cox proportional hazards analyses, with patients censored at 1 year and landmark analysis after 1 year, respectively. Results Three thousand and thirty-nine PLWHIV were included in the analysis. Over a median follow-up of 4.6 years (IQR 2.5–6.9), there was a mortality rate of 8.8%, with 50.4% of deaths occurring within 1 year. Predictors of early mortality included CD4 count < 50 cells/µL (HR 1.84, 95% CI 1.24–2.72, p < 0.01), WHO Stage III (HR 2.05, 95% CI 1.28–3.27, p < 0.01) or IV (HR 2.83, 95% CI 1.67–4.81, p < 0.01), and eGFR < 90 mL/min/1.73 m2 (HR 2.48, 95% CI 1.56–3.96, p < 0.01). Other than age (p < 0.01), only proteinuria (HR 2.12, 95% CI 1.12–4.01, p = 0.02) and diabetes mellitus (HR 3.51, 95% CI 1.32–9.32, p = 0.01) were associated with increased risk of late mortality. Conclusions
Traditional markers of mortality risk in patients commencing ART appear to be limited to early mortality. Proteinuria and diabetes are some of the few predictors of late mortality, and should be incorporated into routine screening of patients commencing ART.
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Drak D, Lin J, Gowers A, Gracey DM. Fanconi syndrome in a patient receiving pre-exposure prophylaxis for HIV infection: case report. Sex Health 2022; 19:224-227. [PMID: 35614021 DOI: 10.1071/sh21185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 05/04/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Tenofovir disoproxil is efficacious in the preventing HIV infection as part of a pre-exposure prophylaxis (PrEP) regimen. Although its use has been associated with impaired renal function, instances of Fanconi syndrome are extremely rare. This may change with increased uptake of PrEP. METHODS A 55-year-old male patient (he/him/his) was commenced on PrEP with a baseline estimated glomerular filtration rate (eGFR) of approximately 60mL/min/1.73m2. RESULTS Within 6months, he developed new and worsening proteinuria, glycosuria and aminoaciduria despite no apparent change in eGFR. PrEP was discontinued and his urinary abnormalities rapidly resolved. The patient remains off PrEP. CONCLUSIONS Fanconi syndrome is a rare, but known complication of tenofovir disoproxil. This is the first report related to PrEP in Australia. While tenofovir associated nephrotoxicity in patients taking PrEP is uncommon, the patient's age and pre-existing renal impairment placed him at substantially higher risk. At-risk patients need more frequent monitoring of their eGFR and proteinuria. Urinary protein to creatinine ratio is the preferred to dipstick testing for proteinuria and the latter does not readily detect the low molecular wight proteinuria characteristic of tenofovir toxicity. Early recognition of these patients is essential, as prompt cessation of PrEP can often reverse renal abnormalities.
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Affiliation(s)
- Douglas Drak
- Royal North Shore Hospital, St Leonards, NSW, Australia; and Faculty of Medicine, Central Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Jasper Lin
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Andrew Gowers
- Holdsworth House Medical Practice, College Street, Sydney, NSW, Australia
| | - David M Gracey
- Faculty of Medicine, Central Clinical School, University of Sydney, Sydney, NSW, Australia; and Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, Australia; and Holdsworth House Medical Practice, College Street, Sydney, NSW, Australia
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Abstract
Background Hyponatraemia is a documented but under-recognised cause of rhabdomyolysis, with the contrasting treatment strategies for the two conditions posing a unique challenge. Balancing the need for aggressive fluid replacement for the treatment of rhabdomyolysis, with the risk of rapidly correcting hyponatraemia is imperative. Case presentation A 52-year-old gentleman with a background of HIV infection and hypertension presented with seizures following methamphetamine use, acute water intoxication, and thiazide use. He was found to have severe hyponatraemia, and following initial correction with hypertonic saline, was commenced on a fluid restriction. After two days he developed abdominal wall and thigh pain, along with oliguria. Laboratory data demonstrated markedly elevated creatine kinase levels and deteriorating renal function. A diagnosis of rhabdomyolysis and severe acute kidney injury was made and aggressive fluid replacement commenced, leading to full resolution of the hyponatraemia, rhabdomyolysis and acute kidney injury. Conclusion Hyponatraemia-induced rhabdomyolysis is rare but can cause significant morbidity and mortality if left untreated. Physicians should consider measuring creatine kinase levels in all patients presenting with severe hyponatraemia, particularly in the presence of other risk factors for rhabdomyolysis. Fluid replacement strategies must be considered in relation to the relative onset and risk of over-correcting hyponatraemia.
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Affiliation(s)
- Edward Reakes
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.
| | - Douglas Drak
- Wagga Wagga Base Hospital, Wagga Wagga, NSW, 2650, Australia.,Central Clinical School, University of Sydney, Camperdown, NSW, 2050, Australia
| | - David Gracey
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.,Central Clinical School, University of Sydney, Camperdown, NSW, 2050, Australia
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Drak D, Heron JE, Shamu T, Chimbetete C, Dahwa R, Gracey DM. Predictors of renal impairment and proteinuria after commencement of antiretroviral therapy in a Zimbabwean HIV cohort. HIV Med 2022; 23:1002-1006. [PMID: 35394105 DOI: 10.1111/hiv.13303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Renal disease prevalence varies widely amongst reported cohorts of people living with HIV (PLWHIV) in sub-Saharan Africa. Renal function testing is not routine in those commencing antiretroviral therapy (ART) in the region, however. Further data on renal disease prevalence and the change associated with ART use are therefore needed. AIM To explore changes in renal function and associated predictors after 1 year of ART in an adult cohort of PLWHIV from Zimbabwe. METHODS A retrospective analysis of patients who attended the Newlands Clinic between January 2007 and September 2019. Eligible patients were aged ≥18 years and had measures of serum creatinine at baseline and after 1 year of ART. Predictors of renal function change were assessed by multiple linear regression. RESULTS 1729 patients were eligible for inclusion. Median age was 36 years (IQR 30-43) and 62.8% were female. After 1 year of ART, the proportion of patients with an estimated glomerular filtration rate (eGFR) <60 ml/min/1.732 did not significantly change (2.0% vs. 1.2%; p = 0.094), but there was a decrease in the proportion of patients with proteinuria (11.0% vs. 5.6%; p < 0.001). Hypertension (B = -6.43; 95% CI -8.97 to -3.89; p < 0.001) and baseline proteinuria (B = -7.33; 95% CI -10.25 to -4.42; p < 0.001) were negative predictors of change in eGFR from baseline, whereas diabetes status was not associated (p = 0.476). CONCLUSION Proteinuria was common, but its prevalence halved after 1 year of ART. Screening for hypertension could be a simple way to identify patients at risk of renal function decline.
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Affiliation(s)
- Douglas Drak
- Royal North Shore Hospital, St Leonards, NSW, Australia.,Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney, NSW, Australia
| | - Jack E Heron
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Tinei Shamu
- Newlands Clinic, Harare, Zimbabwe.,Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.,Graduate School of Health Sciences, University of Bern, Bern, Switzerland
| | | | - Rumbi Dahwa
- Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - David M Gracey
- Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney, NSW, Australia.,Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
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Drak D, Shamu T, Heron JE, Chimbetete C, Dahwa R, Gracey DM. Renal function and associated mortality risk in adults commencing HIV antiretroviral therapy in Zimbabwe. AIDS 2022; 36:631-636. [PMID: 34923518 DOI: 10.1097/qad.0000000000003153] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND People with HIV (PWH) in sub-Saharan Africa appear to have a higher incidence of renal disease than other global regions but data are limited. This renal impairment may be associated with an increased mortality risk. AIMS To define the prevalence of renal disease and explore its association with mortality risk in a cohort from Zimbabwe commencing antiretroviral therapy (ART) for HIV infection. METHODS A retrospective study of all patients aged at least 18 years, commenced on ART for HIV infection at the Newlands Clinic in Harare, Zimbabwe between January 2007 and September 2019 was conducted. Data were extracted from electronic medical records. Patients with no baseline creatinine measurement were excluded. Baseline characteristics were assessed as potential predictors for mortality by Cox proportional hazard regression. RESULTS Three thousand and thirty-nine patients were eligible for inclusion. Most were female (62.1%), with a median age of 36 years (IQR 30-43). At baseline, 7.3% had an estimated glomerular filtration rate (eGFR) 90 ml/min per 1.73 m2 or less and 11.4% had proteinuria. Over a median follow-up period of 4.6 years (IQR 2.5-6.9), the mortality rate was 8.7%. One half of deaths (49.2%) occurred within the first year. In multivariable analysis, a baseline eGFR between 60 and 90 ml/min per 1.73 m2 [hazard ratio 2.22, 95% confidence interval (CI) 1.46-3.33, P < 0.001] and proteinuria (hazard ratio 2.10, 95% CI 1.35-3.27, P < 0.001) were associated with increased mortality risk. CONCLUSION Baseline renal impairment was common. Both a reduced eGFR or proteinuria were independently associated with a doubling of mortality risk. These should serve as markers in the clinical setting of at-risk patients.
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Affiliation(s)
- Douglas Drak
- Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney
- Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Tinei Shamu
- Newlands Clinic, Newlands, Harare, Zimbabwe
- Institute of Social and Preventive Medicine
- Graduate School of Health Sciences, University of Bern, Switzerland
| | - Jack E Heron
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | | | - Rumbi Dahwa
- Internal Medicine Unit, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - David M Gracey
- Central Clinical School, Faculty of Medicine, The University of Sydney, Sydney
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
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Drak D, Mcmanus H, Vickers T, Heron JE, Vaccher S, Zablotska I, Guy R, Bavinton B, Jin F, Grulich AE, Bloch M, O'Connor CC, Gracey DM. Renal impairment in a large-scale HIV preexposure prophylaxis implementation cohort. AIDS 2021; 35:2319-2326. [PMID: 34310371 DOI: 10.1097/qad.0000000000003035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/28/2022]
Abstract
BACKGROUND HIV preexposure prophylaxis (PrEP) with fixed-dose tenofovir disoproxil fumarate (TDF) and emtricitabine has been associated with low rates of renal impairment in clinical trials. Large-scale PrEP implementation may result in higher rates, as the prevalence of associated risk factors may be higher than in trial populations. METHODS A posthoc analysis of EPIC-NSW, a large Australian multicentre PrEP implementation trial for patients at high risk of HIV infection. Participants were eligible for inclusion if they commenced PrEP between 1 March 2016 and 30 April 2018, and had renal function assessed at baseline and at least once more before the censor date. The primary outcome was new-onset renal impairment, defined as an estimated glomerular filtration rate (eGFR) <60 ml/min per 1.73 m2. RESULTS A total of 6808 participants were eligible for inclusion. Almost all were male (99%), with a median age of 35 years [interquartile range (IQR): 28-44]. Approximately one-quarter (26%) had a baseline eGFR <90 ml/min per 1.73 m2. Over a median follow-up period of 1.2 years (IQR: 0.6-1.7), the rate of renal impairment was 5.8 episodes per 1000 person-years [95% confidence interval (CI): 4.0-7.8]. In multivariable Cox regression, there was a higher risk of renal impairment in participants aged ≥50 years [hazard ratio (HR) 14.7, 95% CI: 5.0-43.3, P < 0.001] and those with an eGFR <90 ml/min per 1.73 m2 (HR 28.9, 95% CI: 6.9-121.9) at baseline. CONCLUSION In a large-scale implementation study, TDF-containing PrEP was associated with a low risk of renal impairment overall, whereas older patients and those with preexisting renal dysfunction were at substantially increased risk.
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Affiliation(s)
- Douglas Drak
- Central Clinical School, University of Sydney, Camperdown
- Wagga Wagga Base Hospital, Wagga Wagga
| | | | | | - Jack E Heron
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown
| | | | - Iryna Zablotska
- Westmead Clinical School, Faculty of Medicine and Health
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Westmead
- Western Sydney Sexual Health Centre, Western Sydney Local Health District, Parramatta
| | | | | | | | | | - Mark Bloch
- Holdsworth House Medical Practice, Darlinghurst, NSW, Australia
| | | | - David M Gracey
- Central Clinical School, University of Sydney, Camperdown
- Department of Renal Medicine, Royal Prince Alfred Hospital, Camperdown
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Drak D, Dahwa R, Reakes E, Heron JE, Shamu T, Chimbetete C, Gracey DM. Baseline renal function predicts mortality in adolescents commenced on HIV antiretroviral therapy. AIDS 2021; 35:843-845. [PMID: 33724258 DOI: 10.1097/qad.0000000000002809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Douglas Drak
- Central Clinical School, University of Sydney, Camperdown
- Wagga Wagga Base Hospital, Wagga Wagga, New South Wales, Australia
| | - Rumbi Dahwa
- Department of Medicine, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Edward Reakes
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Jack E Heron
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Tinei Shamu
- Newlands Clinic, Newlands, Harare, Zimbabwe
- Institute of Social and Preventive Medicine, University of Bern, Switzerland
| | | | - David M Gracey
- Central Clinical School, University of Sydney, Camperdown
- Renal Unit, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
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Turner D, Drak D, O’Connor CC, Templeton DJ, Gracey DM. Renal function change after switching tenofovir disoproxil fumarate for tenofovir alafenamide in the HIV-positive patients of a metropolitan sexual health service. AIDS Res Ther 2019; 16:40. [PMID: 31810490 PMCID: PMC6898922 DOI: 10.1186/s12981-019-0256-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 11/28/2019] [Indexed: 12/05/2022] Open
Abstract
Background Tenofovir disoproxil fumarate (TDF) is widely used in the management of HIV-infection, but has been associated with renal impairment in a small proportion of patients. Tenofovir alafenamide (TAF), a novel prodrug of tenofovir, causes less renal impairment and can improve renal function in patients switched from TDF. The factors which predict improved renal function in patients switching from TDF to TAF have yet to be described. Aim To determine which patient factors are associated with an improvement in renal function following the switch from a TDF- to a TAF-based HIV antiretroviral regimen. Methods A retrospective analysis was performed of a cohort from a publicly funded sexual health clinic in Sydney, Australia. All HIV-positive clinic patients switched from a TDF- to TAF-containing regimen between January 2016 and August 2018 were eligible for inclusion. Laboratory results were obtained from patients’ electronic medical records. The statistical significance of differences between pre- and post-switch means was determined by paired t-tests, adjusted for baseline values, and associations between continuous variables by univariate linear regression. Results 79 patients met inclusion criteria. The majority were male (89%), with a median age of 44 years (IQR: 34.5 to 53). Patients had a mean pre-switch estimated glomerular filtration rate (eGFR) of 95 ± 2 mL/min/1.73 m2, and there was no significant change post-switch (p = 0.062). Pre-switch eGFR was a significant predictor of the magnitude of eGFR change after the switch (p < 0.001), but there was no significant association with age (p = 0.189), cumulative TDF exposure (p = 0.454) or baseline urinary protein to creatinine ratio (p = 0.814). Conclusion While there was no significant difference in mean eGFR, in patients switched from TDF to TAF, baseline eGFR was a significant predictor of the change in eGFR. This suggests that patients on TDF with poorer baseline renal function would benefit more from switching to TAF. Further study to explore this association is warranted.
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Kakar S, Drak D, Amin T, Cheung J, O'Connor C, Gracey D. Screening and management of risk factors for cardiovascular disease in HIV-positive patients attending an Australian urban sexual health clinic. Sex Health 2019; 14:198-200. [PMID: 27832579 DOI: 10.1071/sh16106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/27/2016] [Indexed: 11/23/2022]
Abstract
Background Few data exist regarding cardiovascular risk among HIV-infected patients attending sexual health clinics (SHC) in Australia. METHODS The medical records of 188 patients attending an inner-city SHC between August 2013 and July 2014 were retrospectively reviewed for cardiovascular risk factors and associated screening and management practices. RESULTS Cardiovascular risk factors were common among attendees of the SHC, including smoking (38%), hypertension (14%) and dyslipidaemia (11%). Of the 188 patients, 23% reported using potentially cardiotoxic recreational drugs, 25% of dyslipidaemic patients were not on therapy and 10% of patients were hypertensive; none were prescribed treatment. A smoking cessation program was offered to all patients. CONCLUSION A high prevalence of risk factors for cardiovascular disease was demonstrated. Modification of risk factors could be improved.
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Affiliation(s)
- Sheena Kakar
- RPA Sexual Health Clinic, Community Health, Sydney Local Health District, Sydney, NSW 2050, Australia
| | - Douglas Drak
- Sydney Medical School, University of Sydney, Sydney, NSW 2006, Australia
| | - Tahiya Amin
- Faculty of Medicine, UNSW, Sydney, NSW 2052, Australia
| | - Jason Cheung
- Renal Unit, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, NSW 2050, Australia
| | - Catherine O'Connor
- RPA Sexual Health Clinic, Community Health, Sydney Local Health District, Sydney, NSW 2050, Australia
| | - David Gracey
- Renal Unit, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, NSW 2050, Australia
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Drak D, Barratt H, Templeton DJ, O’Connor CC, Gracey DM. Renal function and risk factors for renal disease for patients receiving HIV pre-exposure prophylaxis at an inner metropolitan health service. PLoS One 2019; 14:e0210106. [PMID: 30653509 PMCID: PMC6336260 DOI: 10.1371/journal.pone.0210106] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 12/17/2018] [Indexed: 12/26/2022] Open
Abstract
Background Pre-exposure prophylaxis (PrEP) with tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) significantly reduces the risk of HIV acquisition. TDF is a known nephrotoxin however, renal dysfunction from TDF is mostly reversible following discontinuation. Aims To describe the renal function, risk factors for renal disease and associated clinical testing practices in a cohort of PrEP patients. Methods A retrospective review was conducted of all PrEP patients commenced on TDF/FTC at an inner metropolitan sexual health clinic in Sydney, Australia between April 2016 and July 2017, with follow-up data obtained at 3-monthly intervals until 18 months. Results 525 patients met inclusion criteria. Patients were almost exclusively male and median age was 34 years (IQR: 28 to 42). At baseline, 1.5% had an estimated glomerular filtration rate (eGFR) <70 mL/min/1.73m2. A small significant drop in eGFR of -2.5 mL/min/1.73m2 (p<0.05) occurred between PrEP commencement and the first follow-up period, followed by a progressive decline in eGFR of -0.38 mL/min/1.73m2 per month (95%CI: -0.57 to -0.20; p<0.001). Renal impairment (eGFR <70 mL/min/1.73m2) occurred in 6.5% of patients and persisted across consecutive follow-up periods in five (1.0%) patients. Patients aged ≥40 years had a greater risk of renal impairment than younger patients (HR 3.9, 95%CI: 1.8 to 8.4; p<0.001), despite similar rates of eGFR decline (p = 0.19). PrEP was discontinued in two patients (0.4%) due to renal function concerns. Conclusion PrEP use led to an initial drop in eGFR and a more gradual progressive decline subsequently, but significant renal impairment remained uncommon up to 18 months of follow-up.
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Affiliation(s)
- Douglas Drak
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- * E-mail:
| | - Hamish Barratt
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
| | - David J. Templeton
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
- RPA Sexual Health, Sydney Local Health District, Sydney, NSW, Australia
- Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - Catherine C. O’Connor
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
- RPA Sexual Health, Sydney Local Health District, Sydney, NSW, Australia
- Kirby Institute, University of New South Wales, Sydney, NSW, Australia
| | - David M. Gracey
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
- Renal Unit, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, NSW, Australia
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Chatterjee R, Drak D. Cost Consequence Analysis for Optimising Medical Therapy in an Australian Heart Failure with Reduced Ejection Fraction (HFrEF) Cohort. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Liu J, Drak D, Krishnan A, Chen SY, Canniffe C, Bao S, Denyer G, Celermajer DS. Left Ventricular Fibrosis and Systolic Hypertension Persist in a Repaired Aortic Coarctation Model. Ann Thorac Surg 2017; 104:942-949. [DOI: 10.1016/j.athoracsur.2017.02.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 01/19/2017] [Accepted: 02/06/2017] [Indexed: 11/25/2022]
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Kakar S, Drak D, Amin T, Cheung J, O'Connor CC, Gracey DM. Screening and management practices for renal disease in the HIV-positive patient population of an inner metropolitan sexual health service. Nephrology (Carlton) 2017; 22:174-178. [PMID: 28064450 DOI: 10.1111/nep.12844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/07/2016] [Accepted: 06/16/2016] [Indexed: 11/29/2022]
Abstract
Renal disease is an important and commonly encountered co-morbidity in HIV infection. Despite this, few data are available concerning renal disease in this patient group. A retrospective review was conducted of all HIV-positive patients of an inner metropolitan sexual health service who attended from 1 August 2013 to 31 July 2014 for HIV management. One hundred eighty-eight HIV-positive patients attended the clinic during the study period. The majority were male (96%), Caucasian (70%) and 30-39 years of age (37%). There was a high prevalence of renal risk factors in the population, including potentially nephrotoxic antiretroviral therapy (61%), smoking (38%), hypertension (12%), dyslipidemia (11%) and hepatitis C co-infection (7%). In the previous year, measurements of estimated glomerular filtration rate were performed in all patients, but measurements of lipid profiles, urinary protein and serum phosphate were performed within the last year in only 48%, 33% and 30% of patients, respectively. These are the first comprehensive data regarding renal disease, associated risk factors and screening and management practices in the HIV-positive patient population of a specialized sexual health service in Australia. This patient population demonstrates a particularly high prevalence of risk factors for renal disease. Despite this, screening investigations were not performed as recommended. This represents a potential area to improve patient care.
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Affiliation(s)
- Sheena Kakar
- RPA Sexual Health Clinic, Community Health, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Douglas Drak
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Tahiya Amin
- Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Jason Cheung
- Renal Unit, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Catherine C O'Connor
- RPA Sexual Health Clinic, Community Health, Sydney Local Health District, Sydney, New South Wales, Australia.,Kirby Institute, University of New South Wales, Kensington, New South Wales, Australia.,Central Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - David M Gracey
- Renal Unit, Royal Prince Alfred Hospital, Sydney Local Health District, Sydney, New South Wales, Australia.,Central Clinical School, University of Sydney, Sydney, New South Wales, Australia
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Drak D, Krishnan A, Chen S, Canniffe C, Bao S, Denyer G, Liu J, Celermajer D. Long-Term Persistence of Systolic Hypertension and Left Ventricular Fibrosis in an Animal Model of Early and Complete Repair of Aortic Coarctation. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Krishnan A, Drak D, Bao S, Celermajer DS, Liu J. A model of early transient pressure overload simulating repair of aortic coarctation in childhood. J Thorac Cardiovasc Surg 2016; 151:1766-8. [PMID: 26969131 DOI: 10.1016/j.jtcvs.2016.01.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 01/19/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
Affiliation(s)
- Anish Krishnan
- Department of Physiology, The University of Sydney, New South Wales, Australia
| | - Douglas Drak
- Department of Physiology, The University of Sydney, New South Wales, Australia
| | - Shisan Bao
- Cardiology Department, Royal Prince Alfred Hospital, New South Wales, Australia
| | - David S Celermajer
- Department of Pathology, The University of Sydney, New South Wales, Australia
| | - Jie Liu
- Department of Physiology, The University of Sydney, New South Wales, Australia.
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Chen S, Drak D, Krishnan A, Li W, Denyer G, Celermajer D, Liu J. Early relief of aortic coarctation results in complete regression of cardiac hypertrophy and associated changes in the transcriptome; an animal model. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Drak D, Lachowicz Z, Nienartowicz B, Sidor D, Karnas W, Korobczak I. [Pneumonia in children caused by Chlamydia trachomatis]. Wiad Lek 1988; 41:1104-7. [PMID: 3232376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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21
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Drak D, Korobczak I, Morawska A, Basiewicz B. [Contribution to the diagnosis of rheumatoid arthritis in children]. Pol Tyg Lek 1988; 43:598-601. [PMID: 3420024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Drak D, Korobczak I, Basiewicz B, Karnas W, Nienartowicz B. [Pneumonia caused by Mycoplasma pneumoniae in children]. Wiad Lek 1987; 40:1163-70. [PMID: 3442012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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23
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Drak D, Kazimierczak-Gierlak L, Jakuszko J, Czarnecka E, Knott-Spaczyńska J. [Franceschetti-Zwahlen-Klein syndrome with dextrocardia in a 2-month-old infant]. Pediatr Pol 1987; 62:41-4. [PMID: 3615049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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