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Mfinanga S, Kanyama C, Kouanfack C, Nyirenda S, Kivuyo SL, Boyer-Chammard T, Phiri S, Ngoma J, Shimwela M, Nkungu D, Fomete LN, Simbauranga R, Chawinga C, Ngakam N, Heller T, Lontsi SS, Aghakishiyeva E, Jalava K, Fuller S, Reid AM, Rajasingham R, Lawrence DS, Hosseinipour MC, Beaumont E, Bradley J, Jaffar S, Lortholary O, Harrison T, Molloy SF, Sturny-Leclère A, Loyse A. Reduction in mortality from HIV-related CNS infections in routine care in Africa (DREAMM): a before-and-after, implementation study. Lancet HIV 2023; 10:e663-e673. [PMID: 37802567 DOI: 10.1016/s2352-3018(23)00182-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 05/16/2023] [Accepted: 07/19/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Four decades into the HIV epidemic, CNS infection remains a leading cause of preventable HIV-related deaths in routine care. The Driving Reduced AIDS-associated Meningo-encephalitis Mortality (DREAMM) project aimed to develop, implement, and evaluate pragmatic implementation interventions and strategies to reduce mortality from HIV-related CNS infection. METHODS DREAMM took place in five public hospitals in Cameroon, Malawi, and Tanzania. The main intervention was a stepwise algorithm for HIV-related CNS infections including bedside rapid diagnostic testing and implementation of WHO cryptococcal meningitis guidelines. A health system strengthening approach for hospitals was adopted to deliver quality care through a co-designed education programme, optimised clinical and laboratory pathways, and communities of practice. DREAMM was led and driven by local leadership and divided into three phases: observation (including situational analyses of routine care), training, and implementation. Consecutive adults (aged ≥18 years) living with HIV presenting with a first episode of suspected CNS infection were eligible for recruitment. The primary endpoint was the comparison of 2-week all-cause mortality between observation and implementation phases. This study completed follow-up in September, 2021. The project was registered on ClinicalTrials.gov, NCT03226379. FINDINGS From November, 2016 to April, 2019, 139 eligible participants were enrolled in the observation phase. From Jan 9, 2018, to March 25, 2021, 362 participants were enrolled into the implementation phase. 216 (76%) of 286 participants had advanced HIV disease (209 participants had missing CD4 cell count), and 340 (69%) of 494 participants had exposure to antiretroviral therapy (ART; one participant had missing ART data). In the implementation phase 269 (76%) of 356 participants had a probable CNS infection, 203 (76%) of whom received a confirmed microbiological or radiological diagnosis of CNS infection using existing diagnostic tests and medicines. 63 (49%) of 129 participants died at 2 weeks in the observation phase compared with 63 (24%) of 266 in the implementation phase; and all-cause mortality was lower in the implementation phase when adjusted for site, sex, age, ART exposure (adjusted risk difference -23%, 95% CI -33 to -13; p<0·001). At 10 weeks, 71 (55%) died in the observation phase compared with 103 (39%) in the implementation phase (-13%, -24 to -3; p=0·01). INTERPRETATION DREAMM substantially reduced mortality from HIV-associated CNS infection in resource-limited settings in Africa. DREAMM scale-up is urgently required to reduce deaths in public hospitals and help meet Sustainable Development Goals. FUNDING European and Developing Countries Clinical Trials Partnership, French Agency for Research on AIDS and Viral Hepatitis. TRANSLATIONS For the French and Portuguese translations of the abstract see Supplementary Materials section.
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Affiliation(s)
- Sayoki Mfinanga
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar es Salaam, Tanzania; Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Cecilia Kanyama
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | | | | | - Sokoine Lesikari Kivuyo
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar es Salaam, Tanzania
| | - Timothée Boyer-Chammard
- Unité de Mycologie Moléculaire, Institut Pasteur, Université de Paris, Centre National de la Recherche Scientifique, Paris, France
| | | | | | | | | | | | - Rehema Simbauranga
- National Institute for Medical Research, Muhimbili Medical Research Centre, Dar es Salaam, Tanzania
| | - Chimwemwe Chawinga
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | | | | | | | - Elnara Aghakishiyeva
- Institute for Infection and Immunity, St George's University of London, London, UK
| | | | - Sebastian Fuller
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Anne-Marie Reid
- Leeds Institute of Medical Education, University of Leeds, Leeds, UK
| | | | - David S Lawrence
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK; Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Mina C Hosseinipour
- University of North Carolina Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Emma Beaumont
- Department of Infectious Disease Epidemiology and International Health, London School of Hygiene and Tropical Medicine, London, UK
| | - John Bradley
- Department of Infectious Disease Epidemiology and International Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Shabbar Jaffar
- UCL Institute for Global Health, University College London, London, UK
| | - Olivier Lortholary
- Unité de Mycologie Moléculaire, Institut Pasteur, Université de Paris, Centre National de la Recherche Scientifique, Paris, France; Necker-Enfants Malades Hospital, Assistance Publique - Hôpitaux de Paris, Institut Hospitalier Universitaire Imagine, Paris, France
| | - Thomas Harrison
- Institute for Infection and Immunity, St George's University of London, London, UK
| | - Síle F Molloy
- Institute for Infection and Immunity, St George's University of London, London, UK
| | - Aude Sturny-Leclère
- Institut Pasteur, Université Paris Cité, National Reference Center for Invasive Mycoses and Antifungals, Translational Mycology Research Group, Mycology Department, Paris, France
| | - Angela Loyse
- Unité de Mycologie Moléculaire, Institut Pasteur, Université de Paris, Centre National de la Recherche Scientifique, Paris, France; Institute for Infection and Immunity, St George's University of London, London, UK.
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Carey LI, Kaimba S, Nyirenda S, Chetcuti K, Joekes E, Henrion MYR, Rylance J. Prospective cohort study to identify prevalence, risk factors and outcomes of infection associated kidney disease in a regional hospital in Malawi. BMJ Open 2022; 12:e065649. [PMID: 36442901 PMCID: PMC9710333 DOI: 10.1136/bmjopen-2022-065649] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES Acute kidney injury (AKI) is a common and severe complication of community acquired infection, but data on impact in sub-Saharan Africa (SSA) are lacking. We determined prevalence, risk factors and outcomes of infection associated kidney disease in adults in Malawi. DESIGN A prospective cohort study of adults admitted to hospital with infection, from February 2021 to June 2021, collecting demographic, clinical, laboratory and ultrasonography data. SETTING Adults admitted to a regional hospital in Southern Region, Malawi. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcomes were prevalence of kidney disease and mortality by Cox proportional hazard model. AKI was defined according to Kidney Disease Improving Global Outcomes (KDIGO) guidelines. Secondary outcomes were risk factors for AKI identified by logistic regression and prevalence of chronic kidney disease at 3 months. RESULTS We recruited 101 patients presenting to hospital with infection. Median age was 38 years (IQR: 29-48 years), 88 had known HIV status of which 53 (60%) were living with HIV, and of these 42 (79%) were receiving antiretroviral therapy. AKI was present in 33/101 at baseline, of which 18/33 (55%) cases were severe (KDIGO stage 3). At 3 months, 28/94 (30%) participants had died, while 7/61 (11%) of survivors had chronic kidney disease. AKI was associated with older age (age: 60 years vs 40 years, OR: 3.88, 95% CI 1.82 to 16.64), and HIV positivity (OR: 4.08, 95% CI 1.28 to 15.67). Living with HIV was independently associated with death (HR: 3.97, 95% CI 1.07 to 14.69). CONCLUSIONS Kidney disease is common among hospitalised adults with infection in Malawi, with significant kidney impairment identified at 3 months. Our study highlights the difficulty in diagnosing acute and chronic kidney disease, and the need for more accurate methods than creatinine based estimated glomerular filtration rate (eGFR) equations for populations in Africa. Patients with kidney impairment identified in hospital should be prioritised for follow-up.
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Affiliation(s)
- Laura Isobel Carey
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
- Bristol Renal, Bristol Medical School, University of Bristol, Bristol, UK
| | - Sylvester Kaimba
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Saulos Nyirenda
- Department of Medicine, Zomba Central Hospital, Zomba, Malawi
| | - Karen Chetcuti
- Kamuzu University of Health Sciences, Blantyre, Malawi
- Worldwide Radiology, Liverpool, UK
| | - Elizabeth Joekes
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Worldwide Radiology, Liverpool, UK
| | - Marc Yves Romain Henrion
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Jamie Rylance
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
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Leclere AS, Beaumont E, Cohen JF, Kanyama C, Mfinanga S, Kouanfack C, Lesikari S, Nyirenda S, Phiri S, Boyer-Chammard T, Molloy S, Hosseinipour M, Bradley J, Jaffar S, Harrison T, Lortholary O, Loyse A. S7.1d Reliability of bedside point-of-care tests for Candida neoformans , M. tuberculosis and S. pneumoniae in adults living with HIV presenting with suspected central nervous system infection (CNS) in low- and middle-income settings: Preliminary results from the DREAMM study. Med Mycol 2022. [PMCID: PMC9511647 DOI: 10.1093/mmy/myac072.s7.1d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
S7.1 Update in management of fungal infection in adult hematology, September 23, 2022, 10:30 AM - 12:00 PM Background Bedside point-of-care (POC) testing, with parallel laboratory testing, represents a unique opportunity to improve and speed up the diagnostic workup of people living with HIV with suspected CNS infection in resource-limited settings. Objectives To assess the agreement between POC tests for Cryptococcus neoformans, Mycobacterium tuberculosis, and Streptococcus pneumoniae performed at the bedside and in the routine laboratory, in African low- and middle-income countries (LMICs). Methods From January 2018 to March 2021, the following POC tests were performed in parallel at the bedside and in the routine laboratory: Cryptococcal antigen lateral flow assay (CrAg LFA, Immy) in blood and cerebrospinal fluid (CSF), tuberculosis lipoarabinomannan (TB-LAM, Alere) in urine, and, where indicated, pneumococcal antigen (Streptococcus pneumoniae (SP), Biosynex) in CSF. Participants: HIV-infected adults (>18 years old) suspected of CNS infection. Setting: The prospective multicenter DREAMM project (Driving Reduced AIDS Meningo-Encephalitis Mortality) in five hospital sites in Cameroon, Malawi, and Tanzania. Primary outcome: Cohen's kappa statistic of agreement between the results of POC tests obtained at the bedside and the routine laboratory. Results The study included 356 consecutive participants (mean age 39.5 +/- 10 years; 68.7% ART-experienced; 46.3% male; median CD4 count 75/mm3; abnormal mental status 75%). In total, 148/355 (41.7%) participants had positive bedside CrAg in blood, 140/315 (44.4%) positive bedside CrAg in CSF, 64/339 (18.9%) positive bedside TB-LAM in urine, and 10/175 (5.7%) positive bedside SP in CSF. Kappa statistics evaluating agreement between bedside and laboratory test results were: 0.98 [95% confidence interval (CI) 0.96-1.00; n = 347] for blood CrAg, 0.99 (95%CI, 0.98-1.00; n = 307) for CSF CrAg, 0.92 (95% CI, 0.87-0.98; n = 330) for urinary TB-LAM, and 0.68 (95%CI, 0.40-0.96; n = 34) for CSF SP. Conclusions Bedside POC tests for Cryptococcus spp. are highly reliable and can be safely performed in parallel to laboratory testing to expedite targeted treatment in people living with HIV with suspected CNS infection in African LMICs. Other bedside POC tests need further evaluation before large-scale implementation.
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Affiliation(s)
| | - Emma Beaumont
- London School of Hygiene & Tropical Medicine , London , United Kingdom
| | - Jérémie F. Cohen
- Service de Pédiatrie Générale et Maladies Infectieuses , Hôpital Necker - Enfants malades, Paris , France
| | - Cecilia Kanyama
- University of North Carolina Project–Malawi , Lilongwe , Malawi
| | - Sayoki Mfinanga
- National Institute for Medical Research Muhimbili Medical Research Centre , Dar es Salaam , Tanzania
| | | | - Sokoine Lesikari
- National Institute for Medical Research Muhimbili Medical Research Centre , Dar es Salaam , Tanzania
| | | | | | - Timothée Boyer-Chammard
- Department of Infectious Diseases and Tropical Medicine , Centre Hospitalier d'Ajaccio, Ajaccio , France
| | - Síle Molloy
- St George's University of London , London , United Kingdom
| | | | - John Bradley
- London School of Hygiene & Tropical Medicine , London , United Kingdom
| | - Shabbar Jaffar
- Liverpool School of Tropical Medicine , Liverpool , United Kingdom
| | | | - Olivier Lortholary
- Molecular Mycology Unit , Institut Pasteur, Paris , France
- National Reference Center for Invasive Mycoses and Antifungals , Paris , France
| | - Angela Loyse
- St George's University of London , London , United Kingdom
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Leclere REAS, Beaumont E, Kanyama C, Mfinanga S, Kouanfack C, Lesikari S, Nyirenda S, Phiri S, Boyer-Chammard T, Molloy S, Cohen JF, Hosseinipour M, Bradley J, Jaffar S, Harrison T, Lortholary O, Loyse A. P449 Semi-quantitative cryptococcal antigen rapid test (CryptoPS, Biosynex®) for cryptococcal meningitis in patients living with HIV in Sub-Saharan Africa: prospective multicenter diagnostic accuracy study (DREAMM). Med Mycol 2022. [PMCID: PMC9509710 DOI: 10.1093/mmy/myac072.p449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Poster session 3, September 23, 2022, 12:30 PM - 1:30 PM Background Cryptococcal meningitis (CM) remains a leading cause of HIV-related meningoencephalitis in African low- and middle-income countries (LMICs), causing 15%-20% of HIV-related deaths. Rapid Diagnostic Tests (RDTs) are powerful tools and key to speeding-up the diagnosis at the bedside, allowing for rapid and targeted treatment, especially in LMICs. For the past 10 years, Cryptococcal Antigen (CrAg) RDTs have a major role in CM management. Driving Reduced AIDS Meningo-Encephalitis Mortality (DREAMM) was a multicenter implementation science study and a capacity-building project to reduce the mortality of HIV-related central nervous system infections (CNS). One of the main DREAMM approaches was to improve the diagnosis of CNS infections at the bedside and in parallel in local laboratories. Within DREAMM, HIV-infected, adult people living with HIV (>18 years old) with suspected CNS infections were recruited in five hospital sites in Cameroon, Malawi, and Tanzania. Objectives Our objective was to evaluate the implementation of CrAg CryptoPS (Biosynex, Illkirch Graffenstaden, France), a new semi-quantitative RDT, in routine care settings in Sub-Saharan Africa. Methods All CrAg CryptoPS performed were compared to the reference CrAg lateral flow assay (Immy®). The evaluation was done by the local research teams in four DREAMM laboratories sites. CrAg CryptoPS's implementation was evaluated in 301 plasma samples and 258 cerebrospinal fluid (CSF) samples from 320 participants (patients diagnosed with cerebral toxoplasmosis did not have a lumbar puncture). In this analysis, the results will be considered in a binary way (positive/negative). Results Between January 2018 and March 2021, 356 participants were prospectively enrolled with suspected HIV-related CNS infections, including CM, tuberculous meningitis, cerebral toxoplasmosis, and bacterial meningitis cases. Cryptococcal meningitis was the leading cause of CNS infections in Malawi and Tanzania with 66.3% (53/80) and 59.6% (59/99) cases respectively, and the second cause in Cameroon with 40.0% (39/90) cases after cerebral toxoplasmosis. In plasma, CryptoPS's sensitivity was 99.23% (95% CI, 0.98-1.01) and specificity was 94.15% (95% CI, 0.91-0.98); positive and negative predictive values were 92.8% and 99.4%, respectively. In CSF, the sensitivity and specificity of CryptoPS were 100% (95% CI, 0.0-0.0), and 99.26% (95% CI, 0.98-1.01), respectively; positive and negative predictive values were both 100%. A low number of false-positives were observed (<4% in plasma and <0.5% in CSF). Conclusion CryptoPS was evaluated in a context of hospitalized patients within a project including all causes of HIV-related CNS infection, not only CM. The sensitivity and specificity of CryptoPS calculated in these preliminary results are promising. Semi-quantitative CryptoPS has the potential to be used to tailor antifungal therapy but further optimizations need to be done prior to large-scale implementation in African LMICs. In addition, future work to determine CrAg antigen titres is planned, in the perspective to optimize treatment of CrAg positive cases who decline lumbar puncture.
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Affiliation(s)
| | - Emma Beaumont
- London School of Hygiene & Tropical Medicine , London , United Kingdom
| | - Cecilia Kanyama
- University of North Carolina Project–Malawi , Lilongwe , Malawi
| | - Sayoki Mfinanga
- National Institute for Medical Research Muhimbili Medical Research Centre , Dar es Salaam , Tanzania
| | | | - Sokoine Lesikari
- National Institute for Medical Research Muhimbili Medical Research Centre , Dar es Salaam , Tanzania
| | | | | | - Timothée Boyer-Chammard
- Department of Infectious Diseases and Tropical Medicine , Centre Hospitalier d'Ajaccio, Ajaccio , France
| | - Síle Molloy
- St George's University of London , London , United Kingdom
| | - Jérémie F. Cohen
- Service de Pédiatrie Générale et Maladies Infectieuses , Hôpital Necker - Enfants malades, Paris , France
| | | | - John Bradley
- London School of Hygiene & Tropical Medicine , London , United Kingdom
| | - Shabbar Jaffar
- Liverpool School of Tropical Medicine , Liverpool , United Kingdom
| | | | - Olivier Lortholary
- Molecular Mycology Unit , Institut Pasteur, Paris , France
- National Reference Center for Invasive Mycoses and Antifungals , Institut Pasteur , France
| | - Angela Loyse
- St George's University of London , London , United Kingdom
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Burke RM, Nyirenda S, Twabi HH, Nliwasa M, Joekes E, Walker N, Nyirenda R, Gupta-Wright A, Fielding K, MacPherson P, Corbett EL. Design and protocol for a cluster randomised trial of enhanced diagnostics for tuberculosis screening among people living with HIV in hospital in Malawi (CASTLE study). PLoS One 2022; 17:e0261877. [PMID: 35007306 PMCID: PMC8746787 DOI: 10.1371/journal.pone.0261877] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/16/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND People living with HIV (PLHIV) have a high risk of death if hospitalised in low-income countries. Tuberculosis has long been the leading cause of admission and death, in part due to suboptimal diagnostics. Two promising new diagnostic tools are digital chest Xray with computer-aided diagnosis (DCXR-CAD) and urine testing with Fujifilm SILVAMP LAM (FujiLAM). Neither test has been rigorously evaluated among inpatients. Test characteristics may be complementary, with FujiLAM especially sensitive for disseminated tuberculosis and DCXR-CAD especially sensitive for pulmonary tuberculosis, making combined interventions of interest. DESIGN AND METHODS An exploratory unblinded, single site, two-arm cluster randomised controlled trial, with day of admission as the unit of randomisation. A third, smaller, integrated cohort arm (4:4:1 random allocation) contributes to understanding case-mix, but not trial outcomes. Participants are adults living with HIV not currently on TB treatment. The intervention (DCXR-CAD plus urine FujiLAM plus usual care) is compared to usual care alone. The primary outcome is proportion of participants started on tuberculosis treatment by day 56, with secondary outcomes of mortality (time to event) measured to to 56 days from enrolment, proportions with undiagnosed tuberculosis at death or hospital discharge and comparing proportions with enrolment-day tuberculosis treatment initiation. DISCUSSION Both DCXR-CAD and FujiLAM have potential clinical utility and may have complementary diagnostic performance. To our knowledge, this is the first randomised trial to evaluate these tests among hospitalised PLHIV.
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Affiliation(s)
- Rachael M. Burke
- Faculty of Infectious and Tropical Disease, Clinical Research Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Malawi Liverpool Wellcome Clinical Research Programme, Blantyre, Malawi
| | - Saulos Nyirenda
- Zomba Central Hospital, Malawi Ministry of Health, Zomba, Malawi
| | - Hussein H. Twabi
- Helse Nord TB Initiative, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Marriott Nliwasa
- Helse Nord TB Initiative, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Elizabeth Joekes
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Naomi Walker
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Rose Nyirenda
- Department of HIV AIDS, Malawi Ministry of Health, Lilongwe, Malawi
| | - Ankur Gupta-Wright
- Faculty of Infectious and Tropical Disease, Clinical Research Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Institute for Global Health, University College London, London, England
| | - Katherine Fielding
- Faculty of Epidemiology and Population Health, Infectious Disease Epidemiology Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Peter MacPherson
- Faculty of Infectious and Tropical Disease, Clinical Research Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Malawi Liverpool Wellcome Clinical Research Programme, Blantyre, Malawi
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Elizabeth L. Corbett
- Faculty of Infectious and Tropical Disease, Clinical Research Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Malawi Liverpool Wellcome Clinical Research Programme, Blantyre, Malawi
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Pfaff C, Malamula G, Kamowatimwa G, Theu J, Allain TJ, Amberbir A, Kwilasi S, Nyirenda S, Joshua M, Mallewa J, Mandala C, van Oosterhout JJ, van Lettow M. Decentralising diabetes care from hospitals to primary health care centres in Malawi. Malawi Med J 2021; 33:159-168. [PMID: 35233273 PMCID: PMC8843181 DOI: 10.4314/mmj.v33i3.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Non-communicable diseases (NCDs) such as diabetes and hypertension have become a prominent public health concern in Malawi, where health care services for NCDs are generally restricted to urban centres and district hospitals, while the vast majority of Malawians live in rural settings. Whether similar quality of diabetes care can be delivered at health centres compared to hospitals is not known. Methods We implemented a pilot project of decentralized diabetes care at eight health centres in four districts in Malawi. We described differences between district hospitals and rural health centres in terms of patient characteristics, diabetes complications, cardiovascular risk factors, and aspects of the quality of care and used multivariate logistic regression to explore factors associated with adequate diabetes and blood pressure control. Results By March 2019, 1339 patients with diabetes were registered of whom 286 (21%) received care at peripheral health centres. The median duration of care of patients in the diabetes clinics during the study period was 8.8 months. Overall, HIV testing coverage was 93.6%, blood pressure was recorded in 92.4%; 68.5% underwent foot examination of whom 35.0% had diabetic complications; 30.1% underwent fundoscopy of whom 15.6% had signs of diabetic retinopathy. No significant differences in coverage of testing for diabetes complications were observed between health facility types. Neither did we find significant differences in retention in care (72.1 vs. 77.6%; p=0.06), adequate diabetes control (35.0% vs. 37.8%; p=0.41) and adequate blood pressure control (51.3% vs. 49.8%; p=0.66) between hospitals and health centres. In multivariate analysis, male sex was associated with adequate diabetes control, while lower age and normal body mass index were associated with adequate blood pressure control; health facility type was not associated with either. Conclusion Quality of care did not appear to differ between hospitals and health centres, but was insufficient at both levels.
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Affiliation(s)
| | | | | | - Jo Theu
- Dignitas International, Zomba, Malawi
| | - Theresa J Allain
- Department of Medicine, University of Malawi College of Medicine, Blantyre, Malawi/Kamuzu University of Health Sciences
| | - Alemayehu Amberbir
- Dignitas International, Zomba, Malawi
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | | | | | | | - Jane Mallewa
- Department of Medicine, University of Malawi College of Medicine, Blantyre, Malawi/Kamuzu University of Health Sciences
| | | | - Joep J van Oosterhout
- Dignitas International, Zomba, Malawi
- Department of Medicine, University of Malawi College of Medicine, Blantyre, Malawi/Kamuzu University of Health Sciences
| | - Monique van Lettow
- Dignitas International, Zomba, Malawi
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
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Sibanda T, Tedla Z, Nyirenda S, Agizew T, Marape M, Miranda AG, Reuter H, Johnson JL, Samandari T. Anti-tuberculosis treatment outcomes in HIV-infected adults exposed to isoniazid preventive therapy in Botswana. Int J Tuberc Lung Dis 2013; 17:178-85. [PMID: 23317952 DOI: 10.5588/ijtld.12.0314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Eight public health clinics in Gaborone and Francistown, Botswana. OBJECTIVES To describe the characteristics and outcomes of incident tuberculosis (TB) cases in human immunodeficiency virus (HIV) infected adults exposed to isoniazid preventive therapy (IPT) with access to antiretroviral and anti-tuberculosis treatment. DESIGN In 1995 HIV-infected adults, TB disease was excluded before commencing IPT. During and after receipt of 6 or 36 months of IPT, symptomatic participants were evaluated using chest radiographs, sputum microscopy, cultures and drug susceptibility testing (DST). Incident TB cases received ≥6 months of anti-tuberculosis treatment. RESULTS Seventy-five incident TB cases were identified among 619 symptomatic participants. The median duration of IPT in these cases was 6 months (range 1-35), and the median time to initiation of anti-tuberculosis treatment was 12 months after IPT cessation. Antiretroviral therapy (ART) was initiated before anti-tuberculosis treatment in 37 cases. Culture was positive in 43/58 (74%) TB cultures. DST was available for 38 cases, of which six (16%) were resistant to isoniazid (INH); 67/75 (89%) cases, including four with INH-monoresistant TB, completed anti-tuberculosis treatment or were cured. CONCLUSIONS With prompt initiation of anti-tuberculosis treatment and access to ART, excellent outcomes were achieved in a public health setting in HIV-infected adults who developed TB disease.
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Affiliation(s)
- T Sibanda
- Centers for Disease Control and Prevention Botswana, Gaborone and Francistown, Botswana
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Agizew T, Bachhuber MA, Nyirenda S, Makwaruzi VZSAM, Tedla Z, Tallaksen RJ, Parker JE, Mboya JJ, Samandari T. Association of chest radiographic abnormalities with tuberculosis disease in asymptomatic HIV-infected adults. Int J Tuberc Lung Dis 2010; 14:324-331. [PMID: 20132624] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
SETTING Francistown and Gaborone, Botswana. OBJECTIVE Chest radiography is used to screen for tuberculosis (TB) in asymptomatic persons living with the human immunodeficiency virus (PLWH) seeking isoniazid preventive therapy (IPT). We describe radiographic features in PLWH in a TB-endemic setting and identify features associated with TB disease. DESIGN Asymptomatic PLWH seeking IPT under program conditions for a clinical trial between 2004 and 2006 received chest radiographs (CXRs) that were read using the standardized Chest Radiograph Reading and Recording System (CRRS). Clinical characteristics, including TB disease, were compared with the radiographic findings. RESULTS From 2732 screening CXRs, 183 had one or more abnormalities and were scored using CRRS, with 42% having infiltrates (36% upper lobes), 35% parenchymal fibrosis and 32% adenopathy. TB disease status was determined in 129 (70%) PLWH, of whom 22 (17%) had TB disease. TB disease was associated with upper lobe infiltrates (relative risk [RR] 3.0, 95%CI 1.5-6.2) and mediastinal adenopathy (RR 3.9, 95%CI 1.8-8.4). The sensitivity and specificity of either upper lobe infiltrates or mediastinal lymphadenopathy for TB disease were respectively 64% and 82%. CONCLUSION A combination of CXR features was useful for predicting TB disease in asymptomatic PLWH. CRRS should be used more frequently in similar studies.
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Agizew TB, Arwady MA, Yoon JC, Nyirenda S, Mosimaneotsile B, Tedla Z, Motsamai O, Kilmarx PH, Wells CD, Samandari T. Tuberculosis in asymptomatic HIV-infected adults with abnormal chest radiographs screened for tuberculosis prevention. Int J Tuberc Lung Dis 2010; 14:45-51. [PMID: 20003694] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Isoniazid preventive therapy (IPT) prevents tuberculosis (TB) in people living with HIV (human immunodeficiency virus, PLWH). Symptom screening without chest radiographs (CXRs) was established as the strategy for excluding TB disease among PLWH seeking IPT in Botswana's 2001 pilot project. This strategy was evaluated in 2004-2006 among candidates screened for an IPT clinical trial. METHODS PLWH referred from clinics and HIV testing centers were screened for TB symptoms. All asymptomatic candidates received CXRs; those with abnormal CXRs were investigated further. RESULTS Among 2732 asymptomatic candidates screened, 302 (11%) had abnormal CXRs potentially compatible with TB; TB disease was diagnosed in 43 of these 302 (14%), or 43 (1.6%) of the 2732 asymptomatic candidates. While not associated with CD4 lymphocyte counts < 200 cells/mm(3), TB was associated with a positive tuberculin skin test (relative risk 2.1, 95%CI 1.1-4.0). IPT was initiated in 113 (62%) of 182 asymptomatic PLWH with abnormal CXRs; 8/113 (7%) subsequently developed TB, and 7/8 (88%) successfully completed anti-tuberculosis treatment. CONCLUSIONS The prevalences of abnormal CXRs and TB were respectively 2.6- and 8.9-fold higher among asymptomatic PLWH screened for the trial than in the pilot. A cost-effectiveness analysis is needed to determine whether the benefits of symptom screening alone are offset by the risk of inducing INH resistance by excluding CXRs during screening.
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Kutywayo V, Karanja L, Oduor G, Nyirenda S. Characterisation of a Malawian isolate of Beauveria bassiana, a potential control agent of coffee stem borer, Monochamus leuconotus. Commun Agric Appl Biol Sci 2006; 71:245-52. [PMID: 17390800] [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: 05/14/2023]
Abstract
The radial growth, sporulation and viability of a Beauveria bassiana isolate were assessed at three temperatures (23, 28, 33 degrees C) under light and dark conditions. Optimum radial growth and sporulation occurred at 23 degrees C regardless of photoperiod with the highest spore concentration being attained after incubating for 28 days. Loss of viability was highest at 33 degrees C and there was no significant loss in viability at 23 degrees C for up to five weeks. It would appear that 33 degrees C is too hot for the sporulation, growth and viability of this insect fungus. Photoperiod effects were insignificant for all the parameters evaluated. The infectivity on white coffee stem borers at 2.5 x 10(8) spores ml(-1) was high with 100% of the test larvae immobilised and not feeding within 24 h and dying within two to twelve days.
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Affiliation(s)
- V Kutywayo
- CAB International-Africa Regional Centre, Nairobi, Kenya.
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Mwaba P, Maboshe M, Chintu C, Squire B, Nyirenda S, Sunkutu R, Zumla A. The relentless spread of tuberculosis in Zambia--trends over the past 37 years (1964-2000). S Afr Med J 2003; 93:149-52. [PMID: 12640889] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
OBJECTIVE To review trends in the rates of tuberculosis (TB) case notifications over a 37-year period. DESIGN A retrospective study of Ministry of Health records on TB notifications between 1 January 1964 and 31 December 2000. SETTING Zambia, sub-Saharan Africa. METHODS Retrospective analysis of case-notification data for TB of the Zambia Ministry of Health annual returns. OUTCOME MEASURES Annual TB case-notification rates and trends over the past 37 years. RESULTS TB case-notification data from 1964 to 2000 show a 12-fold increase over the past two decades, and apparent gains in controlling TB seen in the 1960s and 1970s have been reversed over the past two decades. A stable situation during the period 1964-1984 (case-notification rate remained around 100 per 100,000 population) was followed by an exponential increase since the mid-1980s. The absolute number of new TB cases increased from 8,246 in 1985 (124/100,000) to 38,863 (409/100,000) in 1996 and 52,000 (512/100,000) in 2000. Comparison of case-notification rates over the past 2 decades with neighbouring countries (Zimbabwe, Malawi and Tanzania) show that Zambia has one of the highest case-notification rates in the region. CONCLUSIONS Zambia, like many countries in Africa, is in the midst of a serious TB epidemic and there are no signs that it is abating. This increase was most likely due to the impact of the HIV/AIDS epidemic and subsequent breakdown of TB services. Concerted donor-government efforts should invest appropriately in long-term plans for TB control.
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Affiliation(s)
- P Mwaba
- University of Zambia-University College London (UNZA-UCLMS) Research and Training Project, University Teaching Hospital, Lusaka, Zambia
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