36 results on '"Monika Roy"'
Search Results
2. A controlled study to assess the effects of a Fast Track (FT) service delivery model among stable HIV patients in Lusaka Zambia
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Carolyn Bolton Moore, Jake M. Pry, Mpande Mukumbwa-Mwenechanya, Ingrid Eshun-Wilson, Stephanie Topp, Chanda Mwamba, Monika Roy, Hojoon Sohn, David W. Dowdy, Nancy Padian, Charles B. Holmes, Elvin H. Geng, and Izukanji Sikazwe
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Public aspects of medicine ,RA1-1270 - Abstract
Fast Track models—in which patients coming to facility to pick up medications minimize waiting times through foregoing clinical review and collecting pre-packaged medications—present a potential strategy to reduce the burden of treatment. We examine effects of a Fast Track model (FT) in a real-world clinical HIV treatment program on retention to care comparing two clinics initiating FT care to five similar (in size and health care level), standard of care clinics in Zambia. Within each clinic, we selected a systematic sample of patients meeting FT eligibility to follow prospectively for retention using both electronic medical records as well as targeted chart review. We used a variety of methods including Kaplan Meier (KM) stratified by FT, to compare time to first late pick up, exploring late thresholds at >7, >14 and >28 days, Cox proportional hazards to describe associations between FT and late pick up, and linear mixed effects regression to assess the association of FT with medication possession ratio. A total of 905 participants were enrolled with a median age of 40 years (interquartile range [IQR]: 34–46 years), 67.1% were female, median CD4 count was 499 cells/mm3 (IQR: 354–691), and median time on ART was 5 years (IQR: 3–7). During the one-year follow-up period FT participants had a significantly reduced cumulative incidence of being >7 days late for ART pick-up (0.36, 95% confidence interval [CI]: 0.31–0.41) compared to control participants (0.66; 95% CI: 0.57–0.65). This trend held for >28 days late for ART pick-up appointments, at 23% (95% CI: 18%-28%) among intervention participants and 54% (95% CI: 47%-61%) among control participants. FT models significantly improved timely ART pick up among study participants. The apparent synergistic relationship between refill time and other elements of the FT suggest that FT may enhance the effects of extending visit spacing/multi-month scripting alone. ClinicalTrials.gov Identifier: NCT02776254 https://clinicaltrials.gov/ct2/show/NCT02776254.
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- 2022
3. Evaluation of kidney function among people living with HIV initiating antiretroviral therapy in Zambia.
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Jake M Pry, Michael J Vinikoor, Carolyn Bolton Moore, Monika Roy, Aaloke Mody, Izukanji Sikazwe, Anjali Sharma, Belinda Chihota, Miquel Duran-Frigola, Harriet Daultrey, Jacob Mutale, Andrew D Kerkhoff, Elvin H Geng, Brad H Pollock, and Jaime H Vera
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Public aspects of medicine ,RA1-1270 - Abstract
As the response to the HIV epidemic in sub-Saharan Africa continues to mature, a growing number of people living with HIV (PLHIV) are aging and risk for non-communicable diseases increases. Routine laboratory tests of serum creatinine have been conducted to assess HIV treatment (ART) suitability. Here we utilize those measures to assess kidney function impairment among those initiating ART. Identification of non-communicable disease (NCD) risks among those in HIV care creates opportunity to improve public health through care referral and/or NCD/HIV care integration. We estimated glomerular filtration rates (eGFR) using routinely collected serum creatinine measures among a cohort of PLHIV with an HIV care visit at one of 113 Centre for Infectious Disease Research Zambia (CIDRZ) supported sites between January 1, 2011 and December 31, 2017, across seven of the ten provinces in Zambia. We used mixed-effect Poisson regression to assess predictors of eGFR
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- 2022
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4. Participation in adherence clubs and on-time drug pickup among HIV-infected adults in Zambia: A matched-pair cluster randomized trial.
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Monika Roy, Carolyn Bolton-Moore, Izukanji Sikazwe, Mpande Mukumbwa-Mwenechanya, Emilie Efronson, Chanda Mwamba, Paul Somwe, Estella Kalunkumya, Mwansa Lumpa, Anjali Sharma, Jake Pry, Wilbroad Mutale, Peter Ehrenkranz, David V Glidden, Nancy Padian, Stephanie Topp, Elvin Geng, and Charles B Holmes
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Medicine - Abstract
BackgroundCurrent models of HIV service delivery, with frequent facility visits, have led to facility congestion, patient and healthcare provider dissatisfaction, and suboptimal quality of services and retention in care. The Zambian urban adherence club (AC) is a health service innovation designed to improve on-time drug pickup and retention in HIV care through off-hours facility access and pharmacist-led group drug distribution. Similar models of differentiated service delivery (DSD) have shown promise in South Africa, but observational analyses of these models are prone to bias and confounding. We sought to evaluate the effectiveness and implementation of ACs in Zambia using a more rigorous study design.Methods and findingsUsing a matched-pair cluster randomized study design (ClinicalTrials.gov: NCT02776254), 10 clinics were randomized to intervention (5 clinics) or control (5 clinics). At each clinic, between May 19 and October 27, 2016, a systematic random sample was assessed for eligibility (HIV+, age ≥ 14 years, on ART >6 months, not acutely ill, CD4 count not 7 days late). Intervention effect was estimated using unadjusted Kaplan-Meier survival curves and a Cox proportional hazards model to derive an adjusted hazard ratio (aHR). Medication possession ratio (MPR) and implementation outcomes (adoption, acceptability, appropriateness, feasibility, and fidelity) were additionally evaluated as secondary outcomes. Baseline characteristics were similar between 571 intervention and 489 control participants with respect to median age (42 versus 41 years), sex (62% versus 66% female), median time since ART initiation (4.8 versus 5.0 years), median CD4 count at study enrollment (506 versus 533 cells/mm3), and baseline retention (53% versus 55% with at least 1 late drug pickup in previous 12 months). The rate of late drug pickup was lower in intervention participants compared to control participants (aHR 0.26, 95% CI 0.15-0.45, p < 0.001). Median MPR was 100% in intervention participants compared to 96% in control participants (p < 0.001). Although 18% (683/3,734) of AC group meeting visits were missed, on-time drug pickup (within 7 days) still occurred in 51% (350/683) of these missed visits through alternate means (use of buddy pickup or early return to the facility). Qualitative evaluation suggests that the intervention was acceptable to both patients and providers. While patients embraced the convenience and patient-centeredness of the model, preference for traditional adherence counseling and need for greater human resources influenced intervention appropriateness and feasibility from the provider perspective. The main limitations of this study were the small number of clusters, lack of viral load data, and relatively short follow-up period.ConclusionsACs were found to be an effective model of service delivery for reducing late ART drug pickup among HIV-infected adults in Zambia. Drug pickup outside of group meetings was relatively common and underscores the need for DSD models to be flexible and patient-centered if they are to be effective.Trial registrationClinicalTrials.gov NCT02776254.
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- 2020
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5. Estimating the real-world effects of expanding antiretroviral treatment eligibility: Evidence from a regression discontinuity analysis in Zambia.
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Aaloke Mody, Izukanji Sikazwe, Nancy L Czaicki, Mwanza Wa Mwanza, Theodora Savory, Kombatende Sikombe, Laura K Beres, Paul Somwe, Monika Roy, Jake M Pry, Nancy Padian, Carolyn Bolton-Moore, Charles B Holmes, and Elvin H Geng
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Medicine - Abstract
BACKGROUND:Although randomized trials have established the clinical efficacy of treating all persons living with HIV (PLWHs), expanding treatment eligibility in the real world may have additional behavioral effects (e.g., changes in retention) or lead to unintended consequences (e.g., crowding out sicker patients owing to increased patient volume). Using a regression discontinuity design, we sought to assess the effects of a previous change to Zambia's HIV treatment guidelines increasing the threshold for treatment eligibility from 350 to 500 cells/μL to anticipate effects of current global efforts to treat all PLWHs. METHODS AND FINDINGS:We analyzed antiretroviral therapy (ART)-naïve adults who newly enrolled in HIV care in a network of 64 clinics operated by the Zambian Ministry of Health and supported by the Centre for Infectious Disease Research in Zambia (CIDRZ). Patients were restricted to those enrolling in a narrow window around the April 1, 2014 change to Zambian HIV treatment guidelines that raised the CD4 threshold for treatment from 350 to 500 cells/μL (i.e., August 1, 2013, to November 1, 2014). Clinical and sociodemographic data were obtained from an electronic medical record system used in routine care. We used a regression discontinuity design to estimate the effects of this change in treatment eligibility on ART initiation within 3 months of enrollment, retention in care at 6 months (defined as clinic attendance between 3 and 9 months after enrollment), and a composite of both ART initiation by 3 months and retention in care at 6 months in all new enrollees. We also performed an instrumental variable (IV) analysis to quantify the effect of actually initiating ART because of this guideline change on retention. Overall, 34,857 ART-naïve patients (39.1% male, median age 34 years [IQR 28-41], median CD4 268 cells/μL [IQR 134-430]) newly enrolled in HIV care during this period; 23,036 were analyzed after excluding patients around the threshold to allow for clinic-to-clinic variations in actual guideline uptake. In all newly enrolling patients, expanding the CD4 threshold for treatment from 350 to 500 cells/μL was associated with a 13.6% absolute increase in ART initiation within 3 months of enrollment (95% CI, 11.1%-16.2%), a 4.1% absolute increase in retention at 6 months (95% CI, 1.6%-6.7%), and a 10.8% absolute increase in the percentage of patients who initiated ART by 3 months and were retained at six months (95% CI, 8.1%-13.5%). These effects were greatest in patients who would have become newly eligible for ART with the change in guidelines: a 43.7% increase in ART initiation by 3 months (95% CI, 37.5%-49.9%), 13.6% increase in retention at six months (95% CI, 7.3%-20.0%), and a 35.5% increase in the percentage of patients on ART at 3 months and still in care at 6 months [95% CI, 29.2%-41.9%). We did not observe decreases in ART initiation or retention in patients not directly targeted by the guideline change. An IV analysis found that initiating ART in response to the guideline change led to a 37.9% (95% CI, 28.8%-46.9%) absolute increase in retention in care. Limitations of this study include uncertain generalizability under newer models of care, lack of laboratory data (e.g., viral load), inability to account for earlier stages in the HIV care cascade (e.g., HIV testing and linkage), and potential for misclassification of eligibility status or outcome. CONCLUSIONS:In this study, guidelines raising the CD4 threshold for treatment from 350 to 500 cells/μL were associated with a rapid rise in ART initiation as well as enhanced retention among newly treatment-eligible patients, without negatively impacting patients with lower CD4 levels. These data suggest that health systems in Zambia and other high-prevalence settings could substantially enhance engagement even among those with high CD4 levels (i.e., above 500 cells/μL) by expanding treatment without undermining existing care standards.
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- 2018
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6. Bacterial community structure transformed after thermophilically composting human waste in Haiti.
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Yvette M Piceno, Gabrielle Pecora-Black, Sasha Kramer, Monika Roy, Francine C Reid, Eric A Dubinsky, and Gary L Andersen
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Medicine ,Science - Abstract
Recycling human waste for beneficial use has been practiced for millennia. Aerobic (thermophilic) composting of sewage sludge has been shown to reduce populations of opportunistically pathogenic bacteria and to inactivate both Ascaris eggs and culturable Escherichia coli in raw waste, but there is still a question about the fate of most fecal bacteria when raw material is composted directly. This study undertook a comprehensive microbial community analysis of composting material at various stages collected over 6 months at two composting facilities in Haiti. The fecal microbiota signal was monitored using a high-density DNA microarray (PhyloChip). Thermophilic composting altered the bacterial community structure of the starting material. Typical fecal bacteria classified in the following groups were present in at least half the starting material samples, yet were reduced below detection in finished compost: Prevotella and Erysipelotrichaceae (100% reduction of initial presence), Ruminococcaceae (98-99%), Lachnospiraceae (83-94%, primarily unclassified taxa remained), Escherichia and Shigella (100%). Opportunistic pathogens were reduced below the level of detection in the final product with the exception of Clostridium tetani, which could have survived in a spore state or been reintroduced late in the outdoor maturation process. Conversely, thermotolerant or thermophilic Actinomycetes and Firmicutes (e.g., Thermobifida, Bacillus, Geobacillus) typically found in compost increased substantially during the thermophilic stage. This community DNA-based assessment of the fate of human fecal microbiota during thermophilic composting will help optimize this process as a sanitation solution in areas where infrastructure and resources are limited.
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- 2017
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7. Disseminated histoplasmosis in HIV-infected patients in South America: a neglected killer continues on its rampage.
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Mathieu Nacher, Antoine Adenis, Sigrid Mc Donald, Margarete Do Socorro Mendonca Gomes, Shanti Singh, Ivina Lopes Lima, Rosilene Malcher Leite, Sandra Hermelijn, Merril Wongsokarijo, Marja Van Eer, Silvia Marques Da Silva, Maurimelia Mesquita Da Costa, Marizette Silva, Maria Calvacante, Terezinha do Menino Jesus Silva Leitao, Beatriz L Gómez, Angela Restrepo, Angela Tobon, Cristina E Canteros, Christine Aznar, Denis Blanchet, Vincent Vantilcke, Cyrille Vautrin, Rachida Boukhari, Tom Chiller, Christina Scheel, Angela Ahlquist, Monika Roy, Olivier Lortholary, Bernard Carme, Pierre Couppié, and Stephen Vreden
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Arctic medicine. Tropical medicine ,RC955-962 ,Public aspects of medicine ,RA1-1270 - Published
- 2013
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8. Relationship between Obesity and Serum Vitamin D Levels in Young Women
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Dr. Purabi Barman, Dr. Nowrose Jahan, Dr. Proshanta Kumar Pondit, Dr. Muhammad Anamul Hoque, Dr. Monika Roy, Dr. Afsana Akhter, and Dr. Sushanta Kumar Barman
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General Medicine - Abstract
Background: The prevalence of obesity rises gradually worldwide and it is a chronic metabolic disease, which is defined by an excessive accumulation of body fat resulting from an imbalance between energy intake and expenditure. Some studies suggested that the level of serum 25(OH)D was associated with obesity. Vitamin D insufficiency or deficiency is closely associated with chronic diseases, such as tumours, cardiovascular diseases, and diabetes. Vitamin D is fat soluble that can be stored in body fat tissues and excessive body fat can reduce 25(OH) D levels in the blood, especially in obese individuals. Many studies revealed that young women are at a high risk of vitamin D deficiency. Objective: To evaluate the relationship between serum 25(OH)D level and obesity among young women. Methods: This cross-sectional analytical study was carried out in the Department of Biochemistry of Sir Salimullah Medical College & Mitford Hospital, during July 20- June 21. 100 female subjects aged belongs to 19-29 yrs were selected by purposive sampling. Among them 50 women were obese (BMI ≥25 kg/m²) and 50 women were non-obese (BMI< 25 kg/m²). Initial evaluation was done by history taking and anthropometric indices were measured. Here, used student unpaired t-test, chi square test and Pearson's correlation test to determine the association between vitamin D statuses with different variables. Lipid profile assay were carried out by a semi auto biochemistry analyzer and Vitamin D was estimated by immunoanalyzer. SPSS (22) was used for test of significance and p value
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- 2022
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9. Pattern of Disease among patient attending in Outpatient Department in a Tertiary Hospital
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Priobrata Karmakar, Purabi Barman, Muhammad Anamul Hoque, Sushanta Kumar Barman, Ratindra Nath Mondol, Muhammad Ehasun Uddin Khan, and Monika Roy
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medicine.medical_specialty ,business.industry ,Emergency medicine ,Medicine ,Outpatient clinic ,General Medicine ,Disease ,business - Published
- 2021
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10. Evaluation of Short Term Outcome of Acute Ischemic Stroke by Modified Rankin Scale
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Ruhul Amin Sarkar, Monika Roy, Asm Shafiujjaman, Sushanta Kumar Barman, Priobrata Karmakar, and Sukumar Majumder
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medicine.medical_specialty ,Modified Rankin Scale ,business.industry ,Internal medicine ,medicine ,Cardiology ,General Medicine ,business ,Acute ischemic stroke ,Outcome (game theory) ,Term (time) - Published
- 2020
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11. Effect of Doxycycline on Proteinuria in Diabetic Nephropathy
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A.S.M Tanim Anwar, Monika Roy, Mohammad Ehasun Uddin Khan, Ruhul Amin, Sushanta Kumar Barman, Muhammad Anamul Hoque, and Nizamuddin Chowdhury
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Diabetic nephropathy ,Doxycycline ,medicine.medical_specialty ,Proteinuria ,business.industry ,medicine ,Urology ,General Medicine ,medicine.symptom ,medicine.disease ,business ,medicine.drug - Published
- 2020
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12. Differentiated Care Preferences of Stable Patients on Antiretroviral Therapy in Zambia: A Discrete Choice Experiment
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Dave Glidden, Izukanji Sikazwe, Chanda Mwamba, Arianna Zannolini, Monika Roy, Mpande Mukumbwa-Mwenechanya, Carolyn Bolton-Moore, Charles B. Holmes, Estella Kalunkumya, Laura K. Beres, Hae-Young Kim, David W. Dowdy, Anjali Sharma, Nancy Padian, Mwansa Lumpa, Steph M. Topp, Elvin Geng, Peter Ehrenkranz, and Ingrid Eshun-Wilson
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Adult ,Male ,Rural Population ,Attitude of Health Personnel ,discrete choice ,antiretroviral therapy ,MEDLINE ,Zambia ,HIV Infections ,Discrete choice experiment ,030312 virology ,03 medical and health sciences ,Ambulatory care ,Mixed logit ,Ambulatory Care ,Humans ,Medicine ,Pharmacology (medical) ,preference ,Implementation Science ,0303 health sciences ,Discrete choice ,business.industry ,Patient choice ,differentiated care ,HIV ,Patient Preference ,Antiretroviral therapy ,Preference ,3. Good health ,Infectious Diseases ,Antirheumatic Agents ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,Female ,business ,Delivery of Health Care ,Demography - Abstract
Supplemental Digital Content is Available in the Text., Background: Although differentiated service delivery (DSD) models for stable patients on antiretroviral therapy (ART) offer a range of health systems innovations, their comparative desirability to patients remains unknown. We conducted a discrete choice experiment to quantify service attributes most desired by patients to inform model prioritization. Methods: Between July and December 2016, a sample of HIV-positive adults on ART at 12 clinics in Zambia were asked to choose between 2 hypothetical facilities that differed across 6 DSD attributes. We used mixed logit models to explore preferences, heterogeneity, and trade-offs. Results: Of 486 respondents, 59% were female and 85% resided in urban locations. Patients strongly preferred infrequent clinic visits [3- vs. 1-month visits: β (ie, relative utility) = 2.84; P < 0.001]. Milder preferences were observed for waiting time for ART pick-up (1 vs. 6 hours.; β = −0.67; P < 0.001) or provider (1 vs. 3 hours.; β = −0.41; P = 0.002); “buddy” ART collection (β = 0.84; P < 0.001); and ART pick-up location (clinic vs. community: β = 0.35; P = 0.028). Urban patients demonstrated a preference for collecting ART at a clinic (β = 1.32, P < 0.001), and although most rural patients preferred community ART pick-up (β = −0.74, P = 0.049), 40% of rural patients still preferred facility ART collection. Conclusions: Stable patients on ART primarily want to attend clinic infrequently, supporting a focus in Zambia on optimizing multimonth prescribing over other DSD features—particularly in urban areas. Substantial preference heterogeneity highlights the need for DSD models to be flexible, and accommodate both setting features and patient choice in their design.
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- 2019
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13. A Review of Differentiated Service Delivery for HIV Treatment: Effectiveness, Mechanisms, Targeting, and Scale
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Monika Roy, Carolyn Bolton Moore, Charles B. Holmes, and Izukanji Sikazwe
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0301 basic medicine ,medicine.medical_specialty ,Quality management ,Computer science ,Cost-Benefit Analysis ,Supply chain ,HIV Infections ,Pharmacy ,03 medical and health sciences ,0302 clinical medicine ,Patient-Centered Care ,Virology ,Health care ,medicine ,Humans ,030212 general & internal medicine ,Human resources ,business.industry ,Public health ,Models, Theoretical ,030104 developmental biology ,Infectious Diseases ,Risk analysis (engineering) ,Scale (social sciences) ,Observational study ,Public Health ,business ,Delivery of Health Care - Abstract
Differentiated service delivery (DSD) models were initially developed as a means to combat suboptimal long-term retention in HIV care, and to better titrate limited health systems resources to patient needs, primarily in low-income countries. The models themselves are designed to streamline care along the HIV care cascade and range from individual to group-based care and facility to community-based health delivery systems. However, much remains to be understood about how well and for whom DSD models work and whether these models can be scaled, are sustainable, and can reach vulnerable and high-risk populations. Implementation science is tasked with addressing some of these questions through systematic, scientific inquiry. We review the available published evidence on the implementation of DSD and suggest further health systems innovations needed to maximize the public health impact of DSD and future implementation science research directions in this expanding field. While early observational data supported the effectiveness of various DSD models, more recently published trials as well as evaluations of national scale-up provide more rigorous evidence for effectiveness and performance at scale. Deeper understanding of the mechanism of effect of various DSD models and generalizability of studies to other countries or contexts remains somewhat limited. Relative implementability of DSD models may differ based on patient preference, logistical complexity of model adoption and maintenance, human resource and pharmacy supply chain needs, and comparative cost-effectiveness. However, few studies to date have evaluated comparative implementation or cost-effectiveness from a health systems perspective. While DSD represents an exciting and promising “next step” in HIV health care delivery, this innovation comes with its own set of implementation challenges. Evidence on the effectiveness of DSD generally supports the use of most DSD models, although it is still unclear which models are most relevant in diverse settings and populations and which are the most cost-effective. Challenges during scale-up highlight the need for accurate differentiation of patients, sustainable inclusion of a new cadre of health care worker (the community health care worker), and substantial strengthening of existing pharmacy supply chains. To maximize the public health impact of DSD, systems need to be patient-centered and adaptive, as well as employ robust quality improvement processes.
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- 2019
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14. Participation in adherence clubs and on-time drug pickup among HIV-infected adults in Zambia: A matched-pair cluster randomized trial
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Charles B. Holmes, Nancy Padian, Jake Pry, Chanda Mwamba, Monika Roy, Estella Kalunkumya, Mpande Mukumbwa-Mwenechanya, Emilie Efronson, Stephanie M. Topp, Wilbroad Mutale, Izukanji Sikazwe, Mwansa Lumpa, Carolyn Bolton-Moore, Paul Somwe, Elvin Geng, Peter Ehrenkranz, Anjali Sharma, David V. Glidden, and Fox, Matthew P
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RNA viruses ,Male ,Pediatric AIDS ,Economics ,Service delivery framework ,Social Sciences ,HIV Infections ,Kaplan-Meier Estimate ,Pathology and Laboratory Medicine ,Medical and Health Sciences ,law.invention ,Geographical Locations ,South Africa ,Immunodeficiency Viruses ,Randomized controlled trial ,law ,Medicine and Health Sciences ,Public and Occupational Health ,Cluster randomised controlled trial ,Pediatric ,Pharmaceutics ,Hazard ratio ,Confounding ,General Medicine ,Health Services ,Middle Aged ,Vaccination and Immunization ,Infectious Diseases ,Medical Microbiology ,Viral Pathogens ,Viruses ,HIV/AIDS ,Medicine ,Female ,Pathogens ,Infection ,Research Article ,Employment ,Adult ,medicine.medical_specialty ,Drug Adherence ,Patients ,Anti-HIV Agents ,Clinical Trials and Supportive Activities ,Immunology ,Pharmacist ,Zambia ,Antiretroviral Therapy ,Microbiology ,Medication Adherence ,Antiviral Therapy ,Clinical Research ,General & Internal Medicine ,Retroviruses ,medicine ,Humans ,Microbial Pathogens ,Pharmacology ,Proportional hazards model ,business.industry ,Prevention ,Lentivirus ,Organisms ,Biology and Life Sciences ,HIV ,CD4 Lymphocyte Count ,Health Care ,Good Health and Well Being ,Labor Economics ,People and Places ,Africa ,Emergency medicine ,Observational study ,Preventive Medicine ,Drug Delivery ,business - Abstract
Background Current models of HIV service delivery, with frequent facility visits, have led to facility congestion, patient and healthcare provider dissatisfaction, and suboptimal quality of services and retention in care. The Zambian urban adherence club (AC) is a health service innovation designed to improve on-time drug pickup and retention in HIV care through off-hours facility access and pharmacist-led group drug distribution. Similar models of differentiated service delivery (DSD) have shown promise in South Africa, but observational analyses of these models are prone to bias and confounding. We sought to evaluate the effectiveness and implementation of ACs in Zambia using a more rigorous study design. Methods and findings Using a matched-pair cluster randomized study design (ClinicalTrials.gov: NCT02776254), 10 clinics were randomized to intervention (5 clinics) or control (5 clinics). At each clinic, between May 19 and October 27, 2016, a systematic random sample was assessed for eligibility (HIV+, age ≥ 14 years, on ART >6 months, not acutely ill, CD4 count not 7 days late). Intervention effect was estimated using unadjusted Kaplan–Meier survival curves and a Cox proportional hazards model to derive an adjusted hazard ratio (aHR). Medication possession ratio (MPR) and implementation outcomes (adoption, acceptability, appropriateness, feasibility, and fidelity) were additionally evaluated as secondary outcomes. Baseline characteristics were similar between 571 intervention and 489 control participants with respect to median age (42 versus 41 years), sex (62% versus 66% female), median time since ART initiation (4.8 versus 5.0 years), median CD4 count at study enrollment (506 versus 533 cells/mm3), and baseline retention (53% versus 55% with at least 1 late drug pickup in previous 12 months). The rate of late drug pickup was lower in intervention participants compared to control participants (aHR 0.26, 95% CI 0.15–0.45, p < 0.001). Median MPR was 100% in intervention participants compared to 96% in control participants (p < 0.001). Although 18% (683/3,734) of AC group meeting visits were missed, on-time drug pickup (within 7 days) still occurred in 51% (350/683) of these missed visits through alternate means (use of buddy pickup or early return to the facility). Qualitative evaluation suggests that the intervention was acceptable to both patients and providers. While patients embraced the convenience and patient-centeredness of the model, preference for traditional adherence counseling and need for greater human resources influenced intervention appropriateness and feasibility from the provider perspective. The main limitations of this study were the small number of clusters, lack of viral load data, and relatively short follow-up period. Conclusions ACs were found to be an effective model of service delivery for reducing late ART drug pickup among HIV-infected adults in Zambia. Drug pickup outside of group meetings was relatively common and underscores the need for DSD models to be flexible and patient-centered if they are to be effective. Trial registration ClinicalTrials.gov NCT02776254., Monika Roy and colleagues study methods to streamline delivery of antiretrovirals to people with HIV infection in Zambia., Author summary Why was this study done? The adherence club intervention was designed to decrease burden on the health system and improve retention in care among treatment-experienced, clinically stable HIV-infected adults by providing off-hours facility access and streamlined (group-based, pharmacist-led) drug delivery. To date, published data on adherence clubs have been primarily limited to observational data from a similar intervention in South Africa. This study was done to learn about the effectiveness of the intervention and challenges with implementation in other settings in sub-Saharan Africa. What did the researchers do and find? We conducted a matched-pair cluster randomized study to estimate the effect of participating in adherence clubs on on-time drug pickup in Zambia. We additionally used a mixed-methods approach to evaluate the implementation of the intervention. We found that participation in the adherence club led to a reduction in the occurrence and rate of experiencing a late drug pickup. However, on-time drug pickups outside of adherence club meetings were relatively common. Both patients and providers found the intervention to be acceptable, but while patients embraced the patient-centered aspects of adherence clubs, some providers questioned the appropriateness and feasibility of the model. What do these findings mean? The urban adherence club intervention decreased late drug pickup among treatment-experienced adults living with HIV in Zambia. However, patients commonly missed their club meeting, seeking alternative means to pick up their medication on time. While club participation was associated with greater retention in care, flexibility in drug pickup and patient-centeredness were likely important factors.
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- 2020
15. From HIV prevention to non-communicable disease health promotion efforts in sub-Saharan Africa
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Gerald Yonga, Kenneth Juma, Michael J. A. Reid, Oladimeji Oladepo, Susan Vorkoper, Monika Roy, Tecla M Temu, David Zakus, and Naomi S. Levitt
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Adult ,Male ,0301 basic medicine ,Adolescent ,Behavior change communication ,Immunology ,Population ,Psychological intervention ,MEDLINE ,HIV Infections ,Health Promotion ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Environmental health ,Intervention (counseling) ,medicine ,Humans ,Immunology and Allergy ,030212 general & internal medicine ,Young adult ,Child ,Noncommunicable Diseases ,skin and connective tissue diseases ,education ,Africa South of the Sahara ,Aged ,Aged, 80 and over ,education.field_of_study ,integumentary system ,Delivery of Health Care, Integrated ,business.industry ,Infant, Newborn ,Infant ,Middle Aged ,Non-communicable disease ,medicine.disease ,030112 virology ,Infectious Diseases ,Health promotion ,Child, Preschool ,Female ,business - Abstract
To synthesize published literature on noncommunicable disease (NCD) behavior change communication (BCC) interventions in sub-Saharan Africa (SSA) among persons living with HIV (PLHIV) and in the general population to inform efforts to adopt similar HIV and NCD BCC intervention activities.We conducted a literature review of NCD BCC interventions and included 20 SSA-based studies. Inclusion criteria entailed describing a BCC intervention targeting any four priority NCDs (cardiovascular disease, type 2 diabetes, cervical cancer, and depression) or both HIV and any of the NCDs. The RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework was used to assess potential public health impact of these studies. We also solicited expert opinions from 10 key informants on the topic of HIV/NCD health promotion in five SSA countries.The BCC interventions reviewed targeted multiple parts of the HIV and NCD continuum at both individual and community levels. Various strategies (i.e. health education, social marketing, motivational interviewing, mobile health, and peer support) were employed. However, few studies addressed more than one dimension of the RE-AIM framework. Opinions solicited from the key informants supported the feasibility of integrating HIV and NCD BCC interventions in SSA potentially improving access, service provision and service demand, especially for marginalized and vulnerable populations.Although HIV/NCD integration can improve effectiveness of preventive services at individual and community levels, potential public health impact of such approaches remain unknown as reach, adoptability, and sustainability of both integrated and nonintegrated NCD BCC approaches published to date have not been well characterized.
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- 2018
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16. Application of a Multistate Model to Evaluate Visit Burden and Patient Stability to Improve Sustainability of Human Immunodeficiency Virus Treatment in Zambia
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Elvin Geng, Thea Savory, Charles B. Holmes, Nancy Czaicki, David V. Glidden, Kafula Mulenga, Monika Roy, Nancy Padian, Carolyn Bolton Moore, Izukanji Sikazwe, and Mwanza Wa Mwanza
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Male ,0301 basic medicine ,Human immunodeficiency virus (HIV) ,8.1 Organisation and delivery of services ,HIV Infections ,medicine.disease_cause ,Medical and Health Sciences ,Cohort Studies ,0302 clinical medicine ,Theoretical ,7.1 Individual care needs ,Models ,Antiretroviral Therapy, Highly Active ,Ambulatory Care ,Cumulative incidence ,030212 general & internal medicine ,Articles and Commentaries ,Cancer ,human immunodeficiency virus ,Incidence ,Incidence (epidemiology) ,differentiated care ,Health Services ,Biological Sciences ,sustainability ,Infectious Diseases ,Cohort ,Regression Analysis ,HIV/AIDS ,Female ,Infection ,Health and social care services research ,Adult ,Microbiology (medical) ,medicine.medical_specialty ,Anti-HIV Agents ,Antiretroviral Therapy ,Zambia ,Pharmacy ,Microbiology ,Appointments and Schedules ,differentiated service delivery ,03 medical and health sciences ,Pharmacy (field) ,Clinical Research ,medicine ,Humans ,Highly Active ,Quality of care ,business.industry ,Models, Theoretical ,030112 virology ,Antiretroviral therapy ,CD4 Lymphocyte Count ,Good Health and Well Being ,Emergency medicine ,Management of diseases and conditions ,business ,Delivery of Health Care - Abstract
BACKGROUND: Differentiated service delivery (DSD) for human immunodeficiency virus (HIV)–infected persons who are clinically stable on antiretroviral therapy (ART) has been embraced as a solution to decrease access barriers and improve quality of care. However, successful DSD implementation is dependent on understanding the prevalence, incidence, and durability of clinical stability. METHODS: We evaluated visit data in a cohort of HIV-infected adults who made at least 1 visit between 1 March 2013 and 28 February 2015 at 56 clinics in Zambia. We described visit frequency and appointment intervals using conventional stability criteria and used a mixed-effects linear regression model to identify predictors of appointment interval. We developed a multistate model to characterize patient stability over time and calculated incidence rates for transition between states. RESULTS: Overall, 167819 patients made 3418018 post–ART initiation visits between 2004 and 2015. Fifty-four percent of visits were pharmacy refill-only visits, and 24% occurred among patients on ART for >6 months and whose current CD4 was >500 cells/mm(3). Median appointment interval at clinician visits was 59 days, and time on ART and current CD4 were not strong predictors of appointment interval. Cumulative incidence of clinical stability was 66.2% at 2 years after enrollment, but transition to instability (31 events per 100 person-years) and lapses in care (41 events per100 person-years) were common. CONCLUSIONS: Current facility-based care was characterized by high visit burden due to pharmacy refills and among treatment-experienced patients. Differentiated service delivery models targeted toward stable patients need to be adaptive given that clinical stability was highly transient and lapses in care were common.
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- 2018
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17. Implementation and Operational Research: Use of Symptom Screening and Sputum Microscopy Testing for Active Tuberculosis Case Detection Among HIV-Infected Patients in Real-World Clinical Practice in Uganda
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Mwebesa Bwana, Jeffrey N. Martin, Winnie Muyindike, Tara Vijayan, Elvin Geng, Megan Wenger, Monika Roy, and Michael Kanyesigye
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HIV Infections ,Ambulatory Care Facilities ,0302 clinical medicine ,Prevalence ,Mass Screening ,Uganda ,Pharmacology (medical) ,030212 general & internal medicine ,implementation ,Microscopy ,screening and diagnosis ,Coinfection ,Medical record ,Detection ,Infectious Diseases ,Public Health and Health Services ,symbols ,HIV/AIDS ,4.4 Population screening ,medicine.symptom ,Infection ,4.2 Evaluation of markers and technologies ,Cohort study ,Adult ,Operations Research ,medicine.medical_specialty ,Tuberculosis ,Clinical Sciences ,030231 tropical medicine ,Article ,03 medical and health sciences ,symbols.namesake ,Rare Diseases ,Clinical Research ,Virology ,Internal medicine ,medicine ,Humans ,Poisson regression ,Mass screening ,business.industry ,screening ,Sputum ,HIV ,Patient Acceptance of Health Care ,medicine.disease ,Good Health and Well Being ,Physical therapy ,business ,Malaria - Abstract
BACKGROUND The uptake of intensified active TB case-finding among HIV-infected patients using symptom screening is not well understood. We evaluated the rate and completeness of each interim step in the TB pulmonary "diagnostic cascade" to understand real-world barriers to active TB case detection. METHODS We conducted a cohort analysis of new, antiretroviral therapy-naive, HIV-infected patients who attended a large HIV clinic in Mbarara, Uganda (March 1, 2012-September 30, 2013). We used medical records to extract date of completion of each step in the diagnostic cascade: symptom screen, order, collection, processing, and result. Factors associated with lack of sputum order were evaluated using multivariate Poisson regression and chart review of 50 screen-positive patients. RESULTS Of 2613 patients, 2439 (93%) were screened for TB and 682 (28%) screened positive. Only 90 (13.2%) had a sputum order. Of this group, 83% completed the diagnostic cascade, 13% were diagnosed with TB, and 50% had a sputum result within 1 day of their visit. Sputum ordering was associated with WHO stage 3 or 4 HIV disease and greater number of symptoms. The main identifiable reasons for lack of sputum order in chart review were treatment of presumed malaria (51%) or bacterial infection (43%). CONCLUSIONS The majority of newly enrolled HIV-infected patients who screened positive for suspected TB did not have a sputum order, and those who did were more likely to have more symptoms and advanced HIV disease. Further evaluation of provider behavior in the management of screen-positive patients could improve active TB case detection rates.
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- 2016
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18. Understanding Sustained Retention in HIV/AIDS Care and Treatment: a Synthetic Review
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Apollo Tsitsi, Charles B. Holmes, Nancy Padian, Izukanji Sikazwe, Monika Roy, Elvin Geng, Thomas A. Odeny, Nancy Czaicki, and Saurabh Chavan
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0301 basic medicine ,Health Knowledge, Attitudes, Practice ,Patient Dropouts ,Anti-HIV Agents ,Psychological intervention ,HIV Infections ,Health Services Accessibility ,Appointments and Schedules ,03 medical and health sciences ,0302 clinical medicine ,Nursing ,Acquired immunodeficiency syndrome (AIDS) ,Virology ,Humans ,Medicine ,Normalization (sociology) ,030212 general & internal medicine ,Patient participation ,Policy Making ,Community-based care ,Africa South of the Sahara ,Social network ,business.industry ,Environmental resource management ,medicine.disease ,Livelihood ,030112 virology ,Treatment Outcome ,Infectious Diseases ,Patient Participation ,business ,Social capital - Abstract
Sustained retention represents an enduring and evolving challenge to HIV treatment programs in Africa. We present a theoretical framework for sustained retention borrowing from ecologic principles of sustainability and dynamic adaptation. We posit that sustained retention from the patient perspective is dependent on three foundational principles: (1) patient activation: the acceptance, prioritization, literacy, and skills to manage a chronic disease condition, (2) social normalization: the engagement of a social network and harnessing social capital to support care and treatment, and (3) livelihood routinization: the integration of care and treatment activities into livelihood priorities that may change over time. Using this framework, we highlight barriers specific to sustained retention and review interventions addressing long-term, sustained retention in HIV care with a focus on Sub-Saharan Africa.
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- 2016
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19. Estimating the real-world effects of expanding antiretroviral treatment eligibility: Evidence from a regression discontinuity analysis in Zambia
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Theodora Savory, Jake Pry, Monika Roy, Kombatende Sikombe, Nancy Czaicki, Paul Somwe, Nancy Padian, Carolyn Bolton-Moore, Charles B. Holmes, Elvin Geng, Mwanza Wa Mwanza, Aaloke Mody, Laura K. Beres, and Izukanji Sikazwe
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0301 basic medicine ,RNA viruses ,Maternal Health ,lcsh:Medicine ,HIV Infections ,Pathology and Laboratory Medicine ,Pediatrics ,law.invention ,Geographical Locations ,0302 clinical medicine ,Randomized controlled trial ,Immunodeficiency Viruses ,law ,Pregnancy ,Medicine and Health Sciences ,Public and Occupational Health ,030212 general & internal medicine ,Attendance ,Obstetrics and Gynecology ,General Medicine ,Vaccination and Immunization ,3. Good health ,Treatment Outcome ,Breast Feeding ,Anti-Retroviral Agents ,Medical Microbiology ,Viral Pathogens ,Viruses ,Regression discontinuity design ,Regression Analysis ,Pathogens ,Behavioral and Social Aspects of Health ,Viral load ,Research Article ,medicine.medical_specialty ,Immunology ,Zambia ,Antiretroviral Therapy ,Guidelines as Topic ,Microbiology ,03 medical and health sciences ,Pharmacotherapy ,Antiviral Therapy ,Internal medicine ,Retroviruses ,medicine ,Microbial Pathogens ,Treatment Guidelines ,Behavior ,Health Care Policy ,lcsh:R ,Lentivirus ,Organisms ,Biology and Life Sciences ,HIV ,Guideline ,medicine.disease ,030112 virology ,Health Care ,People and Places ,Africa ,Women's Health ,Preventive Medicine ,Neonatology ,Breast feeding - Abstract
Background Although randomized trials have established the clinical efficacy of treating all persons living with HIV (PLWHs), expanding treatment eligibility in the real world may have additional behavioral effects (e.g., changes in retention) or lead to unintended consequences (e.g., crowding out sicker patients owing to increased patient volume). Using a regression discontinuity design, we sought to assess the effects of a previous change to Zambia’s HIV treatment guidelines increasing the threshold for treatment eligibility from 350 to 500 cells/μL to anticipate effects of current global efforts to treat all PLWHs. Methods and findings We analyzed antiretroviral therapy (ART)-naïve adults who newly enrolled in HIV care in a network of 64 clinics operated by the Zambian Ministry of Health and supported by the Centre for Infectious Disease Research in Zambia (CIDRZ). Patients were restricted to those enrolling in a narrow window around the April 1, 2014 change to Zambian HIV treatment guidelines that raised the CD4 threshold for treatment from 350 to 500 cells/μL (i.e., August 1, 2013, to November 1, 2014). Clinical and sociodemographic data were obtained from an electronic medical record system used in routine care. We used a regression discontinuity design to estimate the effects of this change in treatment eligibility on ART initiation within 3 months of enrollment, retention in care at 6 months (defined as clinic attendance between 3 and 9 months after enrollment), and a composite of both ART initiation by 3 months and retention in care at 6 months in all new enrollees. We also performed an instrumental variable (IV) analysis to quantify the effect of actually initiating ART because of this guideline change on retention. Overall, 34,857 ART-naïve patients (39.1% male, median age 34 years [IQR 28–41], median CD4 268 cells/μL [IQR 134–430]) newly enrolled in HIV care during this period; 23,036 were analyzed after excluding patients around the threshold to allow for clinic-to-clinic variations in actual guideline uptake. In all newly enrolling patients, expanding the CD4 threshold for treatment from 350 to 500 cells/μL was associated with a 13.6% absolute increase in ART initiation within 3 months of enrollment (95% CI, 11.1%–16.2%), a 4.1% absolute increase in retention at 6 months (95% CI, 1.6%–6.7%), and a 10.8% absolute increase in the percentage of patients who initiated ART by 3 months and were retained at six months (95% CI, 8.1%–13.5%). These effects were greatest in patients who would have become newly eligible for ART with the change in guidelines: a 43.7% increase in ART initiation by 3 months (95% CI, 37.5%–49.9%), 13.6% increase in retention at six months (95% CI, 7.3%–20.0%), and a 35.5% increase in the percentage of patients on ART at 3 months and still in care at 6 months [95% CI, 29.2%–41.9%). We did not observe decreases in ART initiation or retention in patients not directly targeted by the guideline change. An IV analysis found that initiating ART in response to the guideline change led to a 37.9% (95% CI, 28.8%–46.9%) absolute increase in retention in care. Limitations of this study include uncertain generalizability under newer models of care, lack of laboratory data (e.g., viral load), inability to account for earlier stages in the HIV care cascade (e.g., HIV testing and linkage), and potential for misclassification of eligibility status or outcome. Conclusions In this study, guidelines raising the CD4 threshold for treatment from 350 to 500 cells/μL were associated with a rapid rise in ART initiation as well as enhanced retention among newly treatment-eligible patients, without negatively impacting patients with lower CD4 levels. These data suggest that health systems in Zambia and other high-prevalence settings could substantially enhance engagement even among those with high CD4 levels (i.e., above 500 cells/μL) by expanding treatment without undermining existing care standards., In a regression discontinuity analysis, Aaloke Mody and colleagues assess the implications for treatment initiation and retention of expanded eligibility for antiretroviral therapy in Zambia., Author summary Why was this study done? Universal treatment with ART regardless of CD4 count (i.e., treat-all) is based on randomized controlled trials showing the biologic efficacy of ART, but the public impact of expanding ART eligibility also depends on the behavior of patients and the capacity of health systems to absorb an influx of new patients. Direct effects of expanding ART eligibility include increased ART initiation, but it may also indirectly affect patient behavior (i.e., retention) or create negative spillover effects through increased clinic congestion and crowding out of patients already eligible for ART. We leveraged a 2014 change to Zambia’s national ART guidelines that expanded ART eligibility to those with a CD4 between 350 and 500 cells/μL and pregnant or breastfeeding women to anticipate the effects of expanding treatment to those with CD4 above 500 cells/μL under treat-all. What did the researchers do and find? We used a regression discontinuity design to compare patients enrolling just before and after this 2014 change to Zambia’s national ART guidelines expanding the CD4 treatment threshold from 350 to 500 cells/μL to estimate the effects of the guideline change on ART initiation and retention in care in the entire patient population. Among 34,587 patients who newly enrolled in HIV care between August 1, 2013, and November 1, 2014, Zambia’s 2014 guideline change was associated with a 13.6% increase in the proportion initiating treatment within 3 months of enrollment, a 4.1% increase in retention in care at 6 months, and a 10.8% increase in the percentage of patients in care and on ART at 6 months in the entire clinic population. These effects were most pronounced in those patients who would have become newly eligible with the guideline, but ART initiation also increased without evidence of decreased retention in those who remained eligible as well as those who were not yet eligible for ART. We estimated that initiating ART in response to the change in guidelines led to a 37.9% increase in retention in care, indicating that 2.6 patients would need to be initiated on ART to prevent one episode of LTFU. What do these findings mean? Expanding ART eligibility to patients with higher CD4 counts in a real-world setting was associated with marked changes in patient behavior that were not observed in the more tightly controlled settings of randomized trials. Expanding treatment eligibility was associated with modest increases in ART initiation, overall retention in care, and the percentage of patients in care and on ART, without increasing clinic congestion or negatively impacting those who were already eligible for treatment before the 2014 guideline change (i.e., those with a CD4 less than 350 cells/μL at the time of enrollment). Adopting treat-all may lead to similar improvements in ART initiation and retention without associated negative effects; further research regarding the real-world effects of implementing treat-all is needed. Although expanding treatment eligibility improved ART initiation and retention in care, the overall HIV care cascade remained suboptimal. Further innovations in health systems are needed to increase early diagnosis and linkage and improve overall ART initiation and retention in care.
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- 2018
20. Neonatal and Pediatric Candidemia: Results From Population-Based Active Laboratory Surveillance in Four US Locations, 2009-2015
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Monica M. Farley, Sasha Harb, Tom Chiller, William Schaffner, Vijitha Lahanda Wadu, Caroline R Graber, Rosemary Hollick, Kaitlin Benedict, Monika Roy, Alexia Y Zhang, Gordana Derado, Snigdha Vallabhaneni, Zintar G. Beldavs, Evan J. Anderson, Lee H. Harrison, Sarah Kabbani, Kaytlyn Marceaux, Shawn R. Lockhart, and Lindsay Bonner
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0301 basic medicine ,Male ,Pediatrics ,medicine.medical_specialty ,Antifungal Agents ,Echinocandin ,Adolescent ,030106 microbiology ,Population ,Antifungal drug ,Drug resistance ,03 medical and health sciences ,Echinocandins ,Young Adult ,0302 clinical medicine ,Drug Resistance, Fungal ,Risk Factors ,030225 pediatrics ,Epidemiology ,Candida albicans ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,education ,Child ,Fluconazole ,education.field_of_study ,business.industry ,Incidence (epidemiology) ,Incidence ,Infant, Newborn ,Candidemia ,Infant ,General Medicine ,United States ,Infectious Diseases ,Child, Preschool ,Population Surveillance ,Pediatrics, Perinatology and Child Health ,Female ,business ,Infant, Premature ,medicine.drug - Abstract
Introduction Candida is a leading cause of healthcare-associated bloodstream infections in the United States. Infants and children have unique risk factors for candidemia, and the Candida species distribution in this group is different that among adults; however, candidemia epidemiology in this population has not been described recently. Methods We conducted active population-based candidemia surveillance in 4 US metropolitan areas between 2009 and 2015. We calculated incidences among neonates (0-30 days old), infants (0-364 days old), and noninfant children (1-19 years old), documented their clinical features and antifungal drug resistance. Results We identified 307 pediatric candidemia cases. Incidence trends varied according to site, but overall, the incidence in neonates decreased from 31.5 cases/100000 births in 2009 to 10.7 to 11.8 cases/100000 births between 2012 and 2015, the incidence in infants decreased from 52.1 cases/100000 in 2009 to 15.7 to 17.5 between 2012 and 2015, and the incidence in noninfant children decreased steadily from 1.8 cases/100000 in 2009 to 0.8 in 2014. Common underlying conditions were prematurity in neonates (78%), surgery in nonneonate infants (38%), and malignancy in noninfant children (28%). Most neonate cases were caused by C albicans (67%), whereas non-C. albicans species accounted for 60% of cases in nonneonate infants and noninfant children. Fluconazole and echinocandin resistance rates were low overall. Thirty-day crude mortality was 13%. Conclusions The incidence of candidemia among neonates and infants declined after 2009 but remained stable from 2012 to 2015. Antifungal drug resistance is uncommon. Reasons for the lack of recent declines in neonatal and infant candidemia deserve further exploration. In this article, we describe the epidemiology of candidemia in children in the United States and on the basis of data collected as part of US Centers for Disease Control and Prevention active population-based surveillance. Trends in incidence, clinical characteristics, species distribution, and resistance rates are presented.
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- 2017
21. High Mortality and Coinfection in a Prospective Cohort of Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome Patients with Histoplasmosis in Guatemala
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Monika Roy, Narda Medina, Eduardo Arathoon, Beatriz L. Gómez, Angela A. Cleveland, Blanca Samayoa, Tom Chiller, Dalia Lau-Bonilla, and Christina M. Scheel
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0301 basic medicine ,Male ,Pediatrics ,Survival ,AIDS-related complex ,Median survival time ,HIV Infections ,Cohort Studies ,0302 clinical medicine ,Interquartile range ,Cause of Death ,Mixed infection ,Prospective Studies ,AIDS related complex ,Middle aged ,Fluconazole ,Antifungal therapy ,Histoplasmosis ,Aged, 80 and over ,education.field_of_study ,biology ,Ajellomyces capsulatus ,Coinfection ,Mortality rate ,Articles ,Middle Aged ,Guatemala ,Antiretroviral therapy ,Infectious Diseases ,Acquired immune deficiency syndrome ,Mycobacteriosis ,Medical history ,Female ,Itraconazole ,Cohort analysis ,Human ,Adult ,medicine.medical_specialty ,AIDS-Related Opportunistic Infections ,030106 microbiology ,030231 tropical medicine ,Population ,Histoplasma ,Cause of death ,Article ,03 medical and health sciences ,Young Adult ,Human immunodeficiency virus infection ,Virology ,Amphotericin B ,medicine ,Humans ,Prospective study ,Mortality ,education ,Infection sensitivity ,Antiretrovirus agent ,Aged ,Acquired Immunodeficiency Syndrome ,business.industry ,Very elderly ,medicine.disease ,biology.organism_classification ,Clinical feature ,Isolation and purification ,Immunology ,Parasitology ,business ,Complication - Abstract
Histoplasmosis is one of the most common and deadly opportunistic infections among persons living with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome in Latin America, but due to limited diagnostic capacity in this region, few data on the burden and clinical characteristics of this disease exist. Between 2005 and 2009, we enrolled patients 18 years of age with suspected histoplasmosis at a hospital-based HIV clinic in Guatemala City. A case of suspected histoplasmosis was defined as a person presenting with at least three of five clinical or radiologic criteria. A confirmed case of histoplasmosis was defined as a person with a positive culture or urine antigen test for Histoplasma capsulatum. Demographic and clinical data were also collected and analyzed. Of 263 enrolled as suspected cases of histoplasmosis, 101 (38.4%) were confirmed cases. Median time to diagnosis was 15 days after presentation (interquartile range [IQR] = 5-23). Crude overall mortality was 43.6%; median survival time was 19 days (IQR = 4-69). Mycobacterial infection was diagnosed in 70 (26.6%) cases; 26 (25.7%) histoplasmosis cases were coinfected with mycobacteria. High mortality and short survival time after initial symptoms were observed in patients with histoplasmosis. Mycobacterial coinfection diagnoses were frequent, highlighting the importance of pursuing diagnoses for both diseases. and copy; 2017 by The American Society of Tropical Medicine and Hygiene.
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- 2017
22. Improved Retention With 6-Month Clinic Return Intervals for Stable Human Immunodeficiency Virus-Infected Patients in Zambia
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Kombatende Sikombe, Elvin Geng, Thea Savory, Nancy Padian, Izukanji Sikazwe, Charles B. Holmes, Aaloke Mody, Monika Roy, and Carolyn Bolton-Moore
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0301 basic medicine ,Microbiology (medical) ,Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Anti-HIV Agents ,Human immunodeficiency virus (HIV) ,Zambia ,Pharmacy ,HIV Infections ,medicine.disease_cause ,Logistic regression ,Medication Adherence ,Cohort Studies ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,medicine ,Retention in Care ,Humans ,030212 general & internal medicine ,Pharmacy refill ,Articles and Commentaries ,Aged ,business.industry ,Odds ratio ,Middle Aged ,030112 virology ,Antiretroviral therapy ,Confidence interval ,Infectious Diseases ,Cohort ,Immunology ,Female ,business - Abstract
Background Extending appointment intervals for stable HIV-infected patients in sub-Saharan Africa can reduce patient opportunity costs and decongest overcrowded facilities. Methods We analyzed a cohort of stable HIV-infected adults (on treatment with CD4 >200 cells/μL for more than 6 months) who presented for clinic visits in Lusaka, Zambia. We used multilevel, mixed-effects logistic regression adjusting for patient characteristics, including prior retention, to assess the association between scheduled appointment intervals and subsequent missed visits (>14 days late to next visit), gaps in medication (>14 days late to next pharmacy refill), and loss to follow-up (LTFU; >90 days late to next visit). Results A total of 62084 patients (66.6% female, median age 38, median CD4 438 cells/μL) made 501281 visits while stable on antiretroviral therapy. Most visits were scheduled around 1-month (25.0% clinical, 44.4% pharmacy) or 3-month intervals (49.8% clinical, 35.2% pharmacy), with fewer patients scheduled at 6-month intervals (10.3% clinical, 0.4% pharmacy). After adjustment and compared to patients scheduled to return in 1 month, patients with six-month clinic return intervals were the least likely to miss visits (adjusted odds ratio [aOR], 0.20; 95% confidence interval [CI], 0.17-0.24); miss medication pickups (aOR, 0.47; 95% CI 0.39-0.57), and become LTFU prior to the next visit (aOR, 0.41; 95% CI, 0.31-0.54). Conclusions Six-month clinic return intervals were associated with decreased lateness, gaps in medication, and LTFU in stable HIV-infected patients and may represent a promising strategy to reduce patient burdens and decongest clinics.
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- 2017
23. Cryptococcal meningitis: improving access to essential antifungal medicines in resource-poor countries
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Thomas S. Harrison, Nathan Ford, Tihana Bicanic, Monika Roy, Nelesh P. Govender, Angela Loyse, Philippa Easterbrook, Tom Chiller, and Harry Thangaraj
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Resource poor ,Antifungal ,medicine.medical_specialty ,business.industry ,medicine.drug_class ,medicine.disease ,Infectious Diseases ,Acquired immunodeficiency syndrome (AIDS) ,Induction therapy ,Amphotericin B deoxycholate ,Amphotericin B ,medicine ,Intensive care medicine ,Cryptococcal meningitis ,business ,Meningitis ,medicine.drug - Abstract
Cryptococcal meningitis is the leading cause of adult meningitis in sub-Saharan Africa, and contributes up to 20% of AIDS-related mortality in low-income and middle-income countries every year. Antifungal treatment for cryptococcal meningitis relies on three old, off -patent antifungal drugs: amphotericin B deoxycholate, fl ucytosine, and fl uconazole. Widely accepted treatment guidelines recommend amphotericin B and fl ucytosine as fi rst-line induction treatment for cryptococcal meningitis. However, fl ucytosine is unavailable in Africa and most of Asia, and safe amphotericin B administration requires patient hospitalisation and careful laboratory monitoring to identify and treat common sideeff ects. Therefore, fl uconazole monotherapy is widely used in low-income and middle-income countries for induction therapy, but treatment is associated with signifi cantly increased rates of mortality. We review the antifungal drugs used to treat cryptococcal meningitis with respect to clinical eff ectiveness and access issues specifi c to low-income and middle-income countries. Each drug poses unique access challenges: amphotericin B through cost, toxic eff ects, and insuffi ciently coordinated distribution; fl ucytosine through cost and scarcity of registration; and fl uconazole through challenges in maintenance of local stocks—eg, sustainability of donations or insuffi cient generic supplies. We advocate ten steps that need to be taken to improve access to safe and eff ective antifungal therapy for cryptococcal meningitis.
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- 2013
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24. A Large Community Outbreak of Blastomycosis in Wisconsin With Geographic and Ethnic Clustering
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Bruce S. Klein, Kaitlin Benedict, John R. Archer, Eszter Deak, Monika Roy, Carrie J. Sickler, Jena T. McNiel, Ruth K. Marx, Miles A. Kirby, Eileen Eckardt, Richard T. Heffernan, Benjamin J. Park, Jennifer K. Meece, Jeffrey P. Davis, and Joan Theurer
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Adult ,Male ,Microbiology (medical) ,Adolescent ,Population ,Ethnic group ,Blastomycosis ,Disease Outbreaks ,Young Adult ,Wisconsin ,Ethnicity ,Genetic predisposition ,Cluster Analysis ,Humans ,Medicine ,Child ,education ,Articles and Commentaries ,Aged ,Aged, 80 and over ,education.field_of_study ,Disease surveillance ,Geography ,biology ,Blastomyces dermatitidis ,business.industry ,Incidence (epidemiology) ,Outbreak ,Middle Aged ,biology.organism_classification ,medicine.disease ,Community-Acquired Infections ,Infectious Diseases ,Case-Control Studies ,Child, Preschool ,Blastomyces ,Female ,business ,Demography - Abstract
Background. Blastomycosis is a potentially life-threatening infection caused by the soil-based dimorphic fungus Blastomyces dermatitidis, which is endemic throughout much of the Midwestern United States. We investigated an increase in reported cases of blastomycosis that occurred during 2009–2010 in Marathon County, Wisconsin. Methods. Case detection was conducted using the Wisconsin Electronic Disease Surveillance System (WEDSS). WEDSS data were used to compare demographic, clinical, and exposure characteristics between outbreak-related and historical case patients, and to calculate blastomycosis incidence rates. Because initial mapping of outbreak case patients’ homes and recreational sites demonstrated unusual neighborhood and household case clustering, we conducted a 1:3 matched case-control study to identify factors associated with being in a geographic cluster. Results. Among the 55 patients with outbreak-related cases, 33 (70%) were hospitalized, 2 (5%) died, 30 (55%) had cluster-related cases, and 20 (45%) were Hmong. The overall incidence increased significantly since 2005 (average 11% increase per year, P< .001), and incidence during 2005–2010 was significantly higher among Asians than non-Asians (2010 incidence: 168 vs 13 per 100 000 population). Thirty of the outbreak cases grouped into 5 residential clusters. Outdoor activities were not risk factors for blastomycosis among cluster case patients or when comparing outbreak cases to historical cases. Conclusions. This outbreak of blastomycosis, the largest ever reported, was characterized by unique household and neighborhood clustering likely related to multifocal environmental sources. The reasons for the large number of Hmong affected are unclear, but may involve genetic predisposition.
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- 2013
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25. Trichosporon asahii among Intensive Care Unit Patients at a Medical Center in Jamaica
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Judith Noble-Wang, Mary E. Brandt, John F. Lindo, Heather O'Connell, Kizee A. Etienne, Monika Roy, Orville D. Heslop, Robyn Neblett Fanfair, S. Arunmozhi Balajee, Joyce Peterson, Lois Rainford, Benjamin J. Park, and Lalitha Gade
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Adult ,Male ,Microbiology (medical) ,Jamaica ,medicine.medical_specialty ,Adolescent ,Epidemiology ,Guidelines as Topic ,Trichosporon asahii ,law.invention ,Young Adult ,Trichosporon ,law ,Trichosporonosis ,Humans ,Medicine ,Child ,Intensive care medicine ,Aged ,Trichosporon species ,Aged, 80 and over ,Cross Infection ,business.industry ,Transmission (medicine) ,Middle Aged ,Intensive care unit ,Disinfection ,Intensive Care Units ,Infectious Diseases ,Child, Preschool ,Fomites ,Equipment Contamination ,Female ,Guideline Adherence ,business - Abstract
We investigated an increase in Trichosporon asahii isolates among inpatients. We identified 63 cases; 4 involved disseminated disease. Trichosporon species was recovered from equipment cleaning rooms, washbasins, and fomites, which suggests transmission through washbasins. Patient washbasins should be single-patient use only; adherence to appropriate hospital disinfection guidelines was recommended.
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- 2013
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26. Epidemiologic and Ecologic Features of Blastomycosis: A Review
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Kaitlin Benedict, Monika Roy, Jeffrey P. Davis, and Tom Chiller
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Blastomyces ,medicine.medical_specialty ,Ecology ,Blastomyces dermatitidis ,Biology ,medicine.disease ,biology.organism_classification ,Histoplasmosis ,Geographic distribution ,Infectious Diseases ,Environmental health ,Epidemiology ,medicine ,Treatment strategy ,Blastomycosis - Abstract
Blastomycosis is a potentially fatal infection caused by Blastomyces dermatitidis, a fungus endemic to North America in areas surrounding the Ohio and Mississippi River valleys and the Great Lakes. The clinical manifestations, diagnostic techniques, and treatment strategies for blastomycosis are relatively well-described in the literature; however, the epidemiologic features of disease are not as clearly defined as those of other endemic mycoses, such as histoplasmosis and coccidioidomycosis. We review the ecologic and epidemiologic aspects of B. dermatitidis and blastomycosis, including geographic distribution, environmental niche, seasonality, and possible risk factors.
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- 2012
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27. Preventing Death from HIV-Associated Cryptococcal Meningitis: The Way Forward
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Monika Roy and Tom Chiller
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medicine.medical_specialty ,biology ,business.industry ,Human immunodeficiency virus (HIV) ,Cryptococcus ,Disease ,medicine.disease ,medicine.disease_cause ,biology.organism_classification ,Limited access ,Fungal disease ,Infectious Diseases ,Acquired immunodeficiency syndrome (AIDS) ,Internal medicine ,Immunology ,medicine ,Antiretroviral treatment ,business ,Cryptococcal meningitis - Abstract
Cryptococcal meningitis (CM), a fungal disease caused by Cryptococcus species, is one of the most common opportunistic infections among persons with HIV/AIDS. The highest burden of disease is in sub-Saharan Africa and Southeast Asia, where limited access to antiretroviral treatment and appropriate antifungal therapy contributes to high mortality rates. Increasing focus has been placed on earlier detection and prevention of disease. Primary prophylaxis and screening may provide a survival benefit and can be cost-effective in settings where CM prevalence is high. The development of a new point-of-care cryptococcal antigen assay has the potential to transform both disease prevention and diagnosis.
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- 2011
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28. Donor-Derived Fungal Infections in Transplant Patients
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Benjamin J. Park, Tom Chiller, and Monika Roy
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Transplantation ,Infectious Diseases ,Donor selection ,Immunology ,Transplant patient ,Donor derived ,New infection ,Biology ,Adverse effect ,Donor screening - Abstract
Fungal infection can occur in transplant patients via one of four mechanisms: donor-derived infections, contamination during the transplantation period, reactivation of latent infection in the host, or new infection during the posttransplantation period. Distinguishing between these mechanisms is often difficult and as a result, donor-derived fungal infections may be under-recognized with few data on its prevalence. We review published reports of donor-derived fungal infections and discuss the role of donor screening and the importance of establishing a national reporting, tracking, and notification system for transplant-transmitted infections.
- Published
- 2010
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29. Preventing deaths from cryptococcal meningitis: from bench to bedside
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Monika Roy and Tom Chiller
- Subjects
Microbiology (medical) ,medicine.medical_specialty ,Antifungal Agents ,Antigens, Fungal ,Cost-Benefit Analysis ,Cryptococcus ,HIV Infections ,Disease ,Meningitis, Cryptococcal ,Microbiology ,Asymptomatic ,Acquired immunodeficiency syndrome (AIDS) ,Virology ,medicine ,Humans ,Mass Screening ,Intensive care medicine ,Africa South of the Sahara ,Mass screening ,Cause of death ,Immunoassay ,AIDS-Related Opportunistic Infections ,biology ,business.industry ,HIV ,Cryptococcosis ,biology.organism_classification ,medicine.disease ,Infectious Diseases ,Immunology ,medicine.symptom ,business ,Meningitis ,Fluconazole ,medicine.drug - Abstract
Cryptococcal meningitis (CM), a fungal disease caused by Cryptococcus spp., is the most common form of meningitis and a leading cause of death among persons with HIV/AIDS in sub-Saharan Africa. Detection of cryptococcal antigen, which is present several weeks before overt signs of meningitis develop, provides an opportunity to detect infection early. Screening persons with HIV for cryptococcal infection when they access healthcare can identify asymptomatic infected patients allowing for prompt treatment and prevention of death. A newly developed point-of-care assay for cryptococcal antigen, as well as growing evidence supporting the utility and cost-effectiveness of screening, are further reasons to consider broad implementation of cryptococcal screening in countries with a high burden of cryptococcal disease.
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- 2011
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30. Aflatoxin contamination in food commodities in Bangladesh
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Monika Roy, Lalitha Gade, Stephen P. Luby, Eszter Deak, Tom Chiller, Julie R. Harris, Benjamin Park, S. Arunmozhi Balajee, and Sadia Afreen
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Aflatoxin ,food.ingredient ,Arachis ,Flour ,Wheat flour ,Food Contamination ,Chili powder ,Biology ,Ginger ,Toxicology ,Poultry ,food ,Aflatoxins ,Aflatoxin contamination ,Animals ,Humans ,Food science ,Areca ,Triticum ,Human food ,Bangladesh ,Public Health, Environmental and Occupational Health ,Phoeniceae ,Oryza ,Animal Feed ,Cross-Sectional Studies ,Seeds ,Lens Plant ,Maximum Allowable Concentration ,Capsicum ,Food Science - Abstract
During September 2009, we performed a rapid cross-sectional study to investigate the extent of aflatoxin contamination among common Bangladeshi foods. We collected eight common human food commodities (rice, lentils, wheat flour, dates, betelnut, red chili powder, ginger and groundnuts) and poultry feed samples from two large markets in each of three cities in Bangladesh. We quantified aflatoxin levels from pooled subsamples using fluorescence high-performance liquid chromatography. Aflatoxin levels were highest in dates and groundnuts (maximum 623 and 423 ng/g), respectively. Samples of betelnut (mean 30.6 ng/g), lentils (mean 21.2 ng/g) and red chili powder (>20 ng/g) also had elevated levels. The mean aflatoxin level among poultry feed samples was 73.0 ng/g. Aflatoxin levels were above the US maximum regulatory levels of 20 ng/g in five of eight commonly ingested human food commodities tested.
- Published
- 2014
31. Clinical findings for fungal infections caused by methylprednisolone injections
- Author
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Anurag N. Malani, Joan Duwve, Christina Tan, Tara MacCannell, Sheree Peglow, Atis Muehlenbachs, John A. Jernigan, Tom Kerkering, David Trump, James W. Collins, Tom Chiller, David Kaufman, Robert H. Latham, Duc B. Nguyen, Angela A. Cleveland, Carina Blackmore, Monika Roy, Alice Guh, Sherif R. Zaki, Jevon McFadden, Marion A. Kainer, and Mary E. Brandt
- Subjects
Fungal meningitis ,Adult ,Male ,medicine.medical_specialty ,Antifungal Agents ,Adolescent ,Drug Compounding ,Injections, Epidural ,Methylprednisolone ,Polymerase Chain Reaction ,Disease Outbreaks ,Young Adult ,Ascomycota ,Internal medicine ,medicine ,Humans ,Pathogen ,Glucocorticoids ,Injections, Spinal ,Aged ,Aged, 80 and over ,business.industry ,Public health ,Medical record ,Aspergillus fumigatus ,Outbreak ,General Medicine ,Methylprednisolone acetate ,Middle Aged ,medicine.disease ,United States ,Meningitis, Fungal ,Stroke ,Arachnoiditis ,Immunology ,Female ,business ,Drug Contamination ,Meningitis ,medicine.drug - Abstract
Since September 18, 2012, public health officials have been investigating a large outbreak of fungal meningitis and other infections in patients who received epidural, paraspinal, or joint injections with contaminated lots of methylprednisolone acetate. Little is known about infections caused by Exserohilum rostratum, the predominant outbreak-associated pathogen. We describe the early clinical course of outbreak-associated infections.We reviewed medical records for outbreak cases reported to the Centers for Disease Control and Prevention before November 19, 2012, from the six states with the most reported cases (Florida, Indiana, Michigan, New Jersey, Tennessee, and Virginia). Polymerase-chain-reaction assays and immunohistochemical testing were performed on clinical isolates and tissue specimens for pathogen identification.Of 328 patients without peripheral-joint infection who were included in this investigation, 265 (81%) had central nervous system (CNS) infection and 63 (19%) had non-CNS infections only. Laboratory evidence of E. rostratum was found in 96 of 268 patients (36%) for whom samples were available. Among patients with CNS infections, strokes were associated with an increased severity of abnormalities in cerebrospinal fluid (P0.001). Non-CNS infections were more frequent later in the course of the outbreak (median interval from last injection to diagnosis, 39 days for epidural abscess and 21 days for stroke; P0.001), and such infections developed in patients with and in those without meningitis.The initial clinical findings from this outbreak suggest that fungal infections caused by epidural and paraspinal injection of a contaminated glucocorticoid product can result in a broad spectrum of clinical disease, reflecting possible variations in the pathogenic mechanism and in host and exposure risk factors. (Funded by the Centers for Disease Control and Prevention.).
- Published
- 2013
32. Disseminated histoplasmosis in HIV-Infected patients in South America: a neglected killer continues on its rampage
- Author
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Stephen Vreden, Vincent Vantilcke, Denis Blanchet, Maria Calvacante, Sandra Hermelijn, Angela Restrepo, Terezinha do Menino Jesus Silva Leitão, Christine Aznar, Silvia Helena Marques da Silva, Cristina E. Canteros, Marja Van Eer, Rachida Boukhari, Antoine Adenis, Sigrid Mc Donald, Monika Roy, Ángela Urrego Tobón, Tom Chiller, Maurimelia Mesquita Da Costa, Mathieu Nacher, Pierre Couppié, Marizette Silva, Rosilene Malcher Leite, Ivina Lopes Lima, Angela M. Ahlquist, Merril Wongsokarijo, Cyrille Vautrin, Beatriz L. Gómez, Olivier Lortholary, Shanti Singh, Bernard Carme, Christina M. Scheel, Margarete do Socorro Mendonça Gomes, Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Epidémiologie des parasitoses et mycoses tropicales, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université des Antilles et de la Guyane (UAG), Academisch Ziekenhuis, Paramaribo Hospital, Laboratorio Central de Saude Publica do Amapa, Hospital de Clinicas Dr. Alberto Lima, National AIDS Program, Ministary of Health, Public Health Central Laboratory of Suriname, Public health, Department of Internal Medicine, Diakonessenhuis Hospital, Laboratório de Micologia, Instituto Evandro Chagas, Médico clínico, Departamento de Saude Comunitaria, Universidade Federal do Ceará = Federal University of Ceará (UFC)-Faculdade de Medicina, Medical and Experimental Mycology Group, Corporacion para Investigaciones Biologicas (CIB), SERVICIO ANTIMICROBIANOS, Dpto. Bacteriología-Instituto Nacional de Enfermedades Infecciosas, Service de Médecine Interne, Centre Hospitalier de l'Ouest Guyanais, Mycotic Diseases Branch, Centers for Disease Control and Prevention, Mycologie moléculaire, Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), and ADENIS, ANTOINE
- Subjects
Pediatrics ,medicine.medical_specialty ,lcsh:Arctic medicine. Tropical medicine ,lcsh:RC955-962 ,030231 tropical medicine ,Human immunodeficiency virus (HIV) ,HIV Infections ,Context (language use) ,medicine.disease_cause ,Histoplasmosis ,03 medical and health sciences ,0302 clinical medicine ,Acquired immunodeficiency syndrome (AIDS) ,Disseminated histoplasmosis ,Prevalence ,medicine ,Humans ,Hiv infected patients ,Amphotericin ,Epidemiologia ,ComputingMilieux_MISCELLANEOUS ,Cause of death ,0303 health sciences ,030306 microbiology ,business.industry ,lcsh:Public aspects of medicine ,Public Health, Environmental and Occupational Health ,Neglected Disease ,Neglected Diseases ,HIV ,lcsh:RA1-1270 ,Am?rica do Sul / epidemiologia ,South America ,medicine.disease ,Survival Analysis ,Clinical laboratories ,Diagnostic medicine ,3. Good health ,Histoplasmose ,Infectious Diseases ,Editorial ,[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie ,HIV epidemiology ,Immunology ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,business ,Brazil - Abstract
Centre Hospitalier de Cayenne. Centre d Investigation Clinique Epid?miologie Clinique Antilles Guyane. Cayenne, French Guiana, France. / Universite? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana. Centre Hospitalier de Cayenne. Centre d Investigation Clinique Epid?miologie Clinique Antilles Guyane. Cayenne, French Guiana, France. / Universite? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana. Academisch Ziekenhuis Paramaribo Hospital. Paramaribo, Suriname. Laborat?rio Central de Sa?de P?blica do Amap?. Macap?, AP, Brazil. National AIDS Program. Georgetown, Guyana. Laborat?rio Central de Sa?de P?blica do Amap?. Macap?, AP, Brazil. Laborat?rio Central de Sa?de P?blica do Amap?. Macap?, AP, Brazil. Academisch Ziekenhuis Paramaribo Hospital. Paramaribo, Suriname. Public Health Central Laboratory of Suriname. Paramaribo, Suriname. Diakonessenhuis Hospital. Paramaribo, Suriname. Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil. Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil. Hospital de Clinicas Dr. Alberto Lima. Macap?, AP, Brazil. Hospital de Clinicas Dr. Alberto Lima. Macap?, AP, Brazil. Universidade Federal do Cear? - Faculdade de Medicina - Departamento de Sa?de Comunitaria. Fortaleza, CE, Brazil. Corporaci?n para Investigaciones Biol?gicas. Medell?n, Colombia. Corporaci?n para Investigaciones Biol?gicas. Medell?n, Colombia Corporaci?n para Investigaciones Biol?gicas. Medell?n, Colombia INEI-ANLIS "Dr. Carlos G. Malbr?n". Buenos Aires, Argentina Universit? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana Universit? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana Centre Hospitalier de l'Ouest Guyanais. Saint Laurent du Maroni, French Guiana, France Centre Hospitalier de l'Ouest Guyanais. Saint Laurent du Maroni, French Guiana, France Centre Hospitalier de l'Ouest Guyanais. Saint Laurent du Maroni, French Guiana, France Centers for Disease Control and Prevention. Mycotic Diseases Branch. Atlanta, Georgia, United States of America Centers for Disease Control and Prevention. Mycotic Diseases Branch. Atlanta, Georgia, United States of America Centers for Disease Control and Prevention. Mycotic Diseases Branch. Atlanta, Georgia, United States of America Centers for Disease Control and Prevention. Mycotic Diseases Branch. Atlanta, Georgia, United States of America Institut Pasteur. National Reference Center for Mycoses and Antifungals. Molecular Mycology Unit. Paris, France Centre Hospitalier de Cayenne. Centre d Investigation Clinique Epid?miologie Clinique Antilles Guyane. Cayenne, French Guiana, France. / Universite? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana Universit? Antilles Guyane. Epidemiologie Parasitoses et Mycoses Tropicales. Cayenne, French Guiana Academisch Ziekenhuis Paramaribo Hospital. Paramaribo, Suriname
- Published
- 2013
- Full Text
- View/download PDF
33. Phased implementation of screening for cryptococcal disease in South Africa
- Author
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Zukiswa Pinini, Verushka Chetty, Monika Roy, Samuel Oladoyinbo, Wendy S. Stevens, Yogan Pillay, W D Francois Venter, Waasila Jassat, David Cameron, Graeme Meintjes, Tom Chiller, Thapelo Maotoe, David C. Spencer, Thobile Mbengashe, and Nelesh P. Govender
- Subjects
medicine.medical_specialty ,business.industry ,Incidence (epidemiology) ,Incidence ,General Medicine ,Disease ,Meningitis, Cryptococcal ,Surgery ,Patient management ,Screening programme ,Survival Rate ,Cryptococcus ,South Africa ,Health care ,medicine ,Antiretroviral treatment ,Humans ,Mass Screening ,Intensive care medicine ,business ,Cryptococcal meningitis ,Clinical treatment - Abstract
In South Africa, the incidence of HIV-associated cryptococcal meningitis remains high despite the increased coverage of antiretroviral treatment, and in routine care settings, the disease is associated with a case-fatality ratio of more than 50%. Laboratory-based screening and pre-emptive antifungal treatment of cryptococcal disease have been suggested for routine implementation as part of the National Strategic Plan for HIV, STIs and TB, 2012 - 2016. In the first phase of a national screening programme, screening will begin at almost 500 healthcare facilities in the Gauteng and Free State provinces, and NHLS laboratories will reflexively test the remnant specimen of any blood sample with a CD4+ T-lymphocyte count
- Published
- 2012
34. Preventing AIDS deaths: cryptococcal antigen screening and treatment
- Author
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Jeffrey D. Klausner, Tom Chiller, Samuel Oladoyinbo, Monika Roy, and Nelesh P. Govender
- Subjects
Infectious Diseases ,Acquired immunodeficiency syndrome (AIDS) ,business.industry ,Cryptococcal antigen ,Medicine ,business ,medicine.disease ,Virology - Published
- 2012
- Full Text
- View/download PDF
35. Neuroendocrine Carcinoma of the Breast – Real versus Mimic
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Megha Joshi, Lucy H. Kapur, Clarence Owens, Monika Roychowdhury, and Ananya Kaul
- Subjects
Primary Neuroendocrine Carcinoma ,Large Cell Neuroendocrine Carcinoma ,Breast Core Biopsy vs. Excision ,Medicine ,Medicine (General) ,R5-920 - Abstract
Primary neuroendocrine carcinoma of the breast is a rare entity and is difcult to differentiate from invasive ductal carcinoma with neuroendocrine differentiation especially on small core biopsy specimens. Here we present one such challenging case of a 69 years old female who presented with invasive ductal carcinoma of the breast with neuroendocrine differentiation. The biopsy specimen showed predominately invasive high grade tumor staining for neuroendocrine markers and negative cytokeratin markers, supporting a diagnosis of neuroendocrine carcinoma. Follow up mastectomy showed in situ and invasive ductal carcinoma with neuroendocrine differentiation. This case highlights the challenges of differentiating between these closely similar entities with overlapping features. Clinical history, thorough morphological examination and immunohistochemistry are needed to accurately classify these tumors as the treatment and prognosis vary signicantly.
- Published
- 2016
36. Polymethin Dyes Derived from 6-Methylphenanthridine
- Author
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P. K. JESTHI, (Mrs.) MONIKA ROY, and S. K. MOHAPATRA
- Subjects
6-Methylphenanthridine ,Polymethin Dyes Derived - Abstract
Department of Chemistry, Government College, Sundergarh Manuscript received 4 April 1977, revised 7 September 1971. accepted 24 February 1978 A number of polymethin dyes derived from 6-methyl-phenaothridine as the fixed basic nucleus have been prepared and their absorption maxima data were determined. The absorption maxima data have been utilised for determination of relative basicities of different basic nuclei as well as for determination of relative acidities of different acidic nuclei. These dyes are expected to be good photographic sensitisers.
- Published
- 1978
- Full Text
- View/download PDF
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