24 results on '"Riedel, David J."'
Search Results
2. Unmet Needs for Ancillary Services by Provider Type Among People With Diagnosed Human Immunodeficiency Virus.
- Author
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Thomas, Celina, Yuan, Xin, Taussig, Jennifer A, Tie, Yunfeng, Dasgupta, Sharoda, Riedel, David J, and Weiser, John
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HIV ,PATIENT monitoring ,NURSE-patient relationships ,PHYSICIANS ,NURSES as patients ,PHYSICIANS' assistants - Abstract
Background Unmet needs for ancillary services are substantial among people with human immunodeficiency virus (PWH), and provider type could influence the prevalence of unmet needs for these services. Methods Data from a national probability sample of PWH were analyzed from the Centers for Disease Control and Prevention's Medical Monitoring Project. We analyzed 2019 data on people who had ≥1 encounter with a human immunodeficiency virus (HIV) care provider (N = 3413) and their care facilities. We assessed the proportion of needs that were unmet for individual ancillary services, overall and by HIV care provider type, including infectious disease (ID) physicians, non-ID physicians, nurse practitioners, and physician assistants. We calculated prevalence differences (PDs) with predicted marginal means to assess differences between groups. Results An estimated 98.2% of patients reported ≥1 need for an ancillary service, and of those 46% had ≥1 unmet need. Compared with patients of ID physicians, needs for many ancillary services were higher among patients of other provider types. However, even after adjustment, patients of non-ID physicians had lower unmet needs for dental care (adjusted PD, −5.6 [95% confidence interval {CI}, −9.9 to −1.3]), and patients of nurse practitioners had lower unmet needs for HIV case management services (adjusted PD, −5.4 [95% CI, −9.4 to −1.4]), compared with patients of ID physicians. Conclusions Although needs were greater among patients of providers other than ID physicians, many of these needs may be met by existing support systems at HIV care facilities. However, additional resources may be needed to address unmet needs for dental care and HIV case management among patients of ID physicians. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Towards elimination of mother‐to‐child transmission of HIV in Rwanda: a nested case‐control study of risk factors for transmission
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Remera, Eric, Mugwaneza, Placidie, Chammartin, Frédérique, Mulindabigwi, Augustin, Musengimana, Gentille, Forrest, Jamie I., Mwanyumba, Fabian, Kondwani, Ng’oma, Condo, Jeanine U., Riedel, David J., Mills, Edward J., Nsanzimana, Sabin, and Bucher, Heiner C.
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- 2021
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4. Fulminant Hepatic Failure as the Initial Presentation of Hodgkin Lymphoma in 4 Patients With Human Immunodeficiency Virus.
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Cook, Mary, Williams, Matthew, Law, Jennie Y, and Riedel, David J
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HIV ,HODGKIN'S disease ,LIVER failure ,SYMPTOMS ,CD4 lymphocyte count - Abstract
In the era of antiretroviral therapy (ART), Hodgkin Lymphoma (HL) is a common non-AIDS-defining cancer with increasing incidence in people with human immunodeficiency virus (PWH). Through review of these cases, we identify clinical patterns such as declining CD4 count despite ART, hyperbilirubinemia and recurrent fever, which preceded diagnosis. Identifying these important signs and symptoms may lead to earlier diagnosis and initiation of therapy. Fulminant hepatic failure limits the ability to give standard of care chemotherapy, likely jeopardizing outcomes in this patient population. Alternative bridging therapies should be considered until hepatic function improves. [ABSTRACT FROM AUTHOR]
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- 2023
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5. The Role of Viral Co-Infection in HIV-Associated Non-AIDS-Related Cancers
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Riedel, David J., Tang, Lydia S., and Rositch, Anne F.
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- 2015
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6. Cancer Knowledge and Opportunities for Education Among HIV-Infected Patients in an Urban Academic Medical Center
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Fisher, Lydia H., Stafford, Kristen A., Fantry, Lori E., Gilliam, Bruce L., and Riedel, David J.
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- 2015
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7. Development and implementation of clinical mentorship in Rwanda: successes and challenges.
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Sebeza, Jackson, Riedel, David J., Kiromera, Athanase, Lavoie, Marie-Claude C., Blanco, Natalia, Lascko, Taylor, Muhayimpundu, Ribakare, Mtiro, Emma, Placidie, Mugwaneza, Savio, Habimana Dominique, and Baribwira, Cyprien
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MENTORING , *MEDICAL personnel , *FAMILY nurses , *HIV prevention , *DIAGNOSIS of HIV infections , *NURSE practitioners , *CLINICAL supervision - Abstract
Rwanda has prioritized the decentralization and integration of HIV services over the past decade to ensure universal access to HIV services throughout the nation. Improving the capacity of healthcare providers to provide high-quality HIV prevention and treatment services was a crucial component of this process. In partnership with the authors, Rwanda's national health implementation agency developed a national clinical mentorship program from 2011 to 2017 to facilitate this transition. The Rwanda Clinical Mentorship Model aims to effectively manage HIV-infected patients across all levels of healthcare delivery, implement task shifting, and adhere to national guidelines. The clinical care of HIV-positive individuals was transferred from HIV specialists to family physicians and nurses. The facility team was trained, supervised, and mentored by a multidisciplinary team. Mentorship consisted of routine site visits during which clinical case reviews, clinical supervision teaching, and data reviews were conducted to assess the facility's performance and identify obstacles. Between 2012 and 2020, 5,774 healthcare professionals across the country received HIV testing and treatment training. This clinical mentoring has demonstrated a pragmatic, data-driven, and enduring strategy for enhancing clinical practice at all levels of care. A dedicated cadre of mentors is required to ensure the coordination and sustainability of this approach, according to one finding. The authors participated in accelerating the geographic and scope expansion of clinical mentoring in Rwanda. Developing a sustainable HIV clinical mentorship program in Rwanda requires longterm partnerships and evolving technical assistance. [ABSTRACT FROM AUTHOR]
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- 2022
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8. Treatment-Experienced Patients on Third-Line Therapy: A Retrospective Cohort of Treatment Outcomes at the HIV Advanced Treatment Centre, University Teaching Hospital, Zambia.
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Toeque, Mona-Gekanju, Lindsay, Brianna, Zulu, Paul Msanzya, Hachaambwa, Lottie, Fwoloshi, Sombo, Chanda, Duncan, Stafford, Kristen A., Mupeta, Francis, Siwingwa, Mpanji, Mutinta, Melody, Chirwa, Lameck, Riedel, David J., Claassen, Cassidy, and Mulenga, Lloyd
- Abstract
Antiretroviral therapy (ART) uptake continues to increase across sub-Saharan Africa and emergence of drug-resistant HIV mutations poses significant challenges to management of treatment-experienced patients with virologic failure. In Zambia, new third-line ART (TLART) guidelines including use of dolutegravir (DTG) were introduced in 2018. We assessed virologic suppression, immunologic response, and HIV drug-resistant mutations (DRMs) among patients on TLART at the University Teaching Hospital (UTH) in Lusaka, Zambia. We conducted a retrospective review of patients enrolled at UTH on TLART for >6 months between January 2010 and June 30, 2021. CD4 and HIV viral load (VL) at TLART initiation and post-initiation were assessed to determine virologic and immunologic outcomes. Regression analysis using bivariate and multivariate methods to describe baseline characteristics, virologic, and immunologic response to TLART was performed. A total of 345 patients met inclusion criteria; women comprised 57.6% (199/345) of the cohort. Median age at HIV diagnosis was 30 (interquartile range: 17.3–36.8). In 255 (73.8%) patients with at least two VLs, VL decreased from mean of 3.45 log
10 copies/mL (standard deviation [SD]: 2.02) to 1.68 log10 copies/mL (SD: 1.79). Common ARVs prescribed included DTG (89.9%), tenofovir disoproxil fumarate (68.7%), and darunavir boosted with ritonavir (66.4%); 170 (49.3%) patients had genotypes; mutations consisted of 88.8% nucleoside reverse transcriptase inhibitor, 86.5% non-nucleoside reverse transcriptase inhibitor, and 55.9% protease inhibitor. VL suppression to <1,000 copies/mL was achieved in 225 (78.9%) patients. DRM frequency ranged from 56% to 89% depending on drug class. Treatment-experienced patients receiving TLART in Zambia achieved high rates of suppression despite high proportions of HIV mutations illustrating TLART effectiveness in the DTG era. [ABSTRACT FROM AUTHOR]- Published
- 2022
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9. Factors Associated with Loss to Follow-Up Among Patients Receiving HIV Treatment in Nairobi, Kenya.
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Koech, Emily, Stafford, Kristen A., Mutysia, Immaculate, Katana, Abraham, Jumbe, Marline, Awuor, Patrick, Lavoie, Marie-Claude, Ngunu, Caroline, Riedel, David J., and Ojoo, Sylvia
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We investigated factors associated with loss to follow-up (LTFU) in 24 urban health facilities in Nairobi, Kenya. We conducted a retrospective analysis of routinely collected data to assess factors associated with LTFU in the period October 1, 2016, to June 30, 2017. LTFU was defined as no antiretroviral therapy (ART) refill for ≥90 days and no documentation of transfer, death, or treatment cessation in the patient chart, and if no lapse of ≥90 days between ART refills, patients were considered retained in care. Multivariable logistic regression modeling was used to compute odds ratios and 95% confidence interval (CI) for LTFU. Our analysis included 633 individuals who were LTFU and 13,098 individuals retained in care. Most participants (69.6%) were women, and median age was 33.0 years (interquartile range, 27.2–38.3 years). Median ART duration was shorter among those LTFU (0.4 years) than retained patients (2.5 years, p < .0001). Being male [adjusted odds ratio (aOR) 1.30; 95% CI: 1.04–1.63, p = .02], transferring into facilities while already receiving ART (aOR 11.58; 95% CI: 8.23–16.29, p < .0001), and having a shorter ART duration (<6 months) were associated with increased odds of LTFU. Patients who transferred into a facility while already receiving ART had the highest adjusted odds of being LTFU compared with those retained in care. In this urban and highly mobile population, transferring into facilities while already receiving ART was strongly associated with LTFU. Focusing programming efforts on patients transferring between urban clinics to identify reasons for transfer and potential barriers to treatment adherence could help improve patient outcomes. Supplementary case management and support may be needed to promote a seamless transition and ensure uninterrupted engagement in HIV care and treatment. [ABSTRACT FROM AUTHOR]
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- 2021
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10. TRACnet Internet and SMS Technology Improves Time to Antiretroviral Therapy Initiation among HIV-Infected Infants in Rwanda
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Kayumba, Kizito, Nsanzimana, Sabin, Binagwaho, Agnes, Mugwaneza, Placidie, Rusine, John, Remera, Eric, Koama, Jean Baptiste, Ndahindwa, Vedaste, Johnson, Pamela, Riedel, David J., and Condo, Jeanine
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Male ,Internet ,Text Messaging ,Anti-HIV Agents ,Rwanda ,HIV ,Infant ,HIV Infections ,Article ,Time-to-Treatment ,Early Diagnosis ,Anti-Retroviral Agents ,Humans ,Female ,Health Facilities ,Program Evaluation ,Retrospective Studies - Abstract
Delays in testing HIV-exposed infants and obtaining results in resource-limited settings contribute to delays for initiating antiretroviral therapy (ART) in infants. To overcome this challenge, Rwanda expanded its national mobile and Internet-based HIV/AIDS informatics system, called TRACnet, to include HIV polymerase chain reaction (PCR) results in 2010. This study was performed to evaluate the impact of TRACnet technology on the time to delivery of test results and the subsequent initiation of ART in HIV-infected infants.A retrospective cohort study was conducted on 380 infants who initiated ART in 190 health facilities in Rwanda from March 2010 to June 2013. Program data collected by the TRACnet system were extracted and analyzed.Since the introduction of TRACnet for processing PCR results, the time to receive results has significantly decreased from a median of 144 days [interquartile range (IQR): 121-197 days] to 23 days (IQR: 17-43 days). The number of days between PCR sampling and health facility receipt of results decreased substantially from a median of 90 days (IQR: 83-158 days) to 5 days (IQR: 2-8 days). After receiving PCR results at a health facility, it takes a median of 44 days (IQR: 32-77 days) before ART initiation. Result turnaround time was significantly associated with time to initiating ART (P0.001). An increased number of staff trained for HIV care and treatment was also significantly associated with decreased time to ART initiation (P = 0.004).The use of mobile technology for communication of HIV PCR results, coupled with well-trained and skilled personnel, can reduce delays in communicating results to providers. Such reductions may improve timely ART initiation in resource-limited settings.
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- 2016
11. Sexual risk behaviors and practices of female sex workers in Rwanda in over a decade, 2006–2015.
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Mutagoma, Mwumvaneza, Nyirazinyoye, Laetitia, Sebuhoro, Dieudonné, Riedel, David J., and Ntaganira, Joseph
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SEXUAL behavior surveys ,SEX workers ,LOGISTIC regression analysis ,CONDOM use ,SEXUALLY transmitted diseases - Abstract
Female sex workers (FSWs) are at high risk for HIV. Cross-sectional surveys using a venue–day–time approach for recruitment were conducted among FSWs in Rwanda in 2006, 2010 and 2015. Chi square test for trends was computed to determine behavior changes. Logistic regression models were computed to determine risk factors associated with consistent condom use for the 2015 survey. There were 1041, 1338, and 1978 FSWs surveyed in 2006, 2010, and 2015, respectively. Condom use at the last sexual encounter with a client was similar in all surveys: 84.2%, 64.1%, and 83.3% (p = 1.0), respectively. Comprehensive HIV knowledge among FSWs was higher in 2015 than in 2006: 18.4%, 53.1%, and 71.1% (p = 0.00), respectively. Living in Kigali City and the Western province (aOR = 1.9 [95% CI: 1.3–2.8] and aOR = 2.0 [95% CI: 1.4–2.9], respectively) and higher level of education (OR = 2.0 [95% CI: 1.4–2.9]) were positively associated with consistent condom use with a client. Street-based FSWs (aOR = 0.7 [95% CI: 0.6–0.9]); FSWs with sex work as sole occupation (aOR = 0.6 [95% CI: 0.5–0.7]); FSWs who experienced sexually transmitted infections in the last year (aOR = 0.7 [95% CI: 0.5–0.8]) and HIV-positive FSWs (aOR = 0.8 [95% CI: 0.6–0.9]) were less likely to report consistent condom use. HIV prevention methods have evolved among FSWs in RWanda over the last decade, but HIV prevalence remains high. Condom use among many FSWs is inconsistent. New approaches for behavior change and income-generating activities are needed to reduce the vulnerability of FSWs in Rwanda. [ABSTRACT FROM AUTHOR]
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- 2018
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12. Patient-level outcomes and virologic suppression rates in HIV-infected patients receiving antiretroviral therapy in Rwanda.
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Riedel, David J., Stafford, Kristen A., Memiah, Peter, Coker, Modupe, Baribwira, Cyprien, Sebeza, Jackson, Karorero, Eva, Nsanzimana, Sabin, Morales, Fernando, and Redfield, Robert R.
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HIV infections ,THERAPEUTICS ,ANTIRETROVIRAL agents ,VIROLOGY ,CD4 lymphocyte count ,PATIENT compliance - Abstract
The Rwanda national HIV program has been successful at scaling up antiretroviral therapy (ART) to achieve universal access. The AIDSRelief Model of Care focuses on four key principles: (1) earlier initiation of ART; (2) use of durable, highly-potent, and sequence-friendly first-line ART regimens; (3) early detection of treatment failure; and (4) provision of community-based care and support to ensure optimal adherence and follow up/engagement in care. We conducted a retrospective cohort study of randomly-selected HIV-infected patients at AIDSRelief-supported sites using a stratified, random sample of 583 adults (>15 years) who initiated ART from 30 June 2008 to 1 February 2010. At ART initiation, the median patient age was 38 years, and 67% were female. The baseline median CD4+ cell count was 309 cells/mm3. Overall virologic suppression was 91%. Married/ever married status (adjusted prevalence odds ratio [aPOR] 3.75, 95% confidence interval [CI] 1.30-10.78) and self-reported adherence ≥95% in the past month (aPOR 2.76, 95% CI 1.00-7.62) were significantly associated with viral suppression in the multivariable model. Excellent virologic outcomes were achieved in Rwandan AIDSRelief sites utilizing the AIDSRelief Model of Care during the scale-up of ART in the country. [ABSTRACT FROM AUTHOR]
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- 2018
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13. Hepatitis B virus and HIV co-infection among pregnant women in Rwanda.
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Mutagoma, Mwumvaneza, Balisanga, Helene, Malamba, Samuel S., Sebuhoro, Dieudonné, Remera, Eric, Riedel, David J., Kanters, Steve, and Nsanzimana, Sabin
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HEPATITIS B virus ,HIV infections ,MIXED infections ,MATERNAL health ,WOMEN - Abstract
Background: Hepatitis B virus (HBV) affects people worldwide but the local burden especially in pregnant women and their new born babies is unknown. In Rwanda HIV-infected individuals who are also infected with HBV are supposed to be initiated on ART immediately. HBV is easily transmitted from mother to child during delivery. We sought to estimate the prevalence of chronic HBV infection among pregnant women attending ante-natal clinic (ANC) in Rwanda and to determine factors associated with HBV and HIV co-infection.Methods: This study used a cross-sectional survey, targeting pregnant women in sentinel sites. Pregnant women were tested for hepatitis B surface antigen (HBsAg) and HIV infection. A series of tests were done to ensure high sensitivity. Multivariable logistic regression was used to identify independent predictors of HBV-HIV co-infection among those collected during ANC sentinel surveillance, these included: age, marital status, education level, occupation, residence, pregnancy and syphilis infection.Results: The prevalence of HBsAg among 13,121 pregnant women was 3.7% (95% CI: 3.4-4.0%) and was similar among different socio-demographic characteristics that were assessed. The proportion of HIV-infection among HBsAg-positive pregnant women was 4.1% [95% CI: 2.5-6.3%]. The prevalence of HBV-HIV co-infection was higher among women aged 15-24 years compared to those women aged 25-49 years [aOR = 6.9 (95% CI: 1.8-27.0)]. Women residing in urban areas seemed having HBV-HIV co-infection compared with women residing in rural areas [aOR = 4.3 (95% CI: 1.2-16.4)]. Women with more than two pregnancies were potentially having the co-infection compared to those with two or less (aOR = 6.9 (95% CI: 1.7-27.8). Women with RPR-positive test were seemed associated with HBV-HIV co-infection (aOR = 24.9 (95% CI: 5.0-122.9).Conclusion: Chronic HBV infection is a public health problem among pregnant women in Rwanda. Understanding that HBV-HIV co-infection may be more prominent in younger women from urban residences will help inform and strengthen HBV prevention and treatment programmes among HIV-infected pregnant women, which is crucial to this population. [ABSTRACT FROM AUTHOR]- Published
- 2017
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14. Syphilis and HIV prevalence and associated factors to their co-infection, hepatitis B and hepatitis C viruses prevalence among female sex workers in Rwanda.
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Mutagoma, Mwumvaneza, Nyirazinyoye, Laetitia, Sebuhoro, Dieudonné, Riedel, David J., and Ntaganira, Joseph
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SEX workers ,HIV ,HEPATITIS B transmission ,HEPATITIS C virus ,PUBLIC health ,HEALTH ,SYPHILIS epidemiology ,EPIDEMIOLOGY of sexually transmitted diseases ,HIV infection epidemiology ,HEPATITIS B ,HEPATITIS C ,SOCIOECONOMIC factors ,DISEASE prevalence ,CROSS-sectional method ,MIXED infections - Abstract
Background: Human Immunodeficiency Virus (HIV), syphilis, Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV) are sexually transmitted infections (STIs) and share modes of transmission. These infections are generally more prevalent among female sex workers (FSWs).Methods: This is a cross-sectional study conducted among female sex workers (FSWs) in Rwanda in 2015. Venue-Day-Time (VDT) sampling method was used in recruiting participants. HIV, syphilis, HBV, and HCV testing were performed. Descriptive analyses and logistic regression models were computed.Results: In total, 1978 FSWs were recruited. The majority (58.5%) was aged between 20 and 29 years old. Up to 63.9% of FSWs were single, 62.3% attained primary school, and 68.0% had no additional occupation beside sex work. Almost all FSWs (81.2%) had children. The majority of FSWs (68.4%) were venue-based, and most (53.5%) had spent less than five years in sex work. The overall prevalence of syphilis was 51.1%; it was 2.5% for HBV, 1.4% for HCV, 42.9% for HIV and 27.4% for syphilis/HIV co-infection. The prevalence of syphilis, HIV, and syphilis + HIV co-infection was increasing with age and decreasing with the level of education. A positive association with syphilis/HIV co-infection was found in: 25 years and older (aOR = 1.82 [95% CI:1.33-2.50]), having had a genital sore in the last 12 months (aOR = 1.34 [95% CI:1.05-1.71]), and having HBsAg-positive test (aOR = 2.09 [1.08-4.08]).Conclusion: The prevalence of HIV and syphilis infections and HIV/syphilis co-infection are very high among FSWs in Rwanda. A strong, specific prevention program for FSWs and to avert HIV infection and other STIs transmission to their clients is needed. [ABSTRACT FROM AUTHOR]- Published
- 2017
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15. Virologic and Immunologic Outcomes in HIV-Infected Patients with Cancer.
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Riedel, David J., Stafford, Kristen A., Vadlamani, Aparna, and Redfield, Robert R.
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Achievement and maintenance of virologic suppression after cancer diagnosis have been associated with improved outcomes in HIV-infected patients, but few studies have analyzed the virologic and immunologic outcomes after a cancer diagnosis. All HIV-infected patients with a diagnosis of cancer between 2000 and 2011 in an urban clinic population in Baltimore, MD, were included for review. HIV-related outcomes (HIV-1 RNA viral load and CD4 cell count) were abstracted and compared for patients with non-AIDS-defining cancers (NADCs) and AIDS-defining cancers (ADCs). Four hundred twelve patients with baseline CD4 or HIV-1 RNA viral load data were analyzed. There were 122 (30%) diagnoses of ADCs and 290 (70%) NADCs. Patients with NADCs had a higher median age (54 years vs. 43 years, p < .0001) and a higher frequency of hepatitis C coinfection (52% vs. 36%, p = .002). The median baseline CD4 was lower for patients with ADCs (137 cells/mm
3 vs. 314 cells/mm3 ) and patients with NADCs were more likely to be suppressed at cancer diagnosis (59% vs. 25%) (both p < .0001). The median CD4 for patients with NADCs was significantly higher than patients with ADCs at 6 and 12 months after diagnosis and higher at 18 and 24 months, but not significantly. Patients with an NADC had 2.19 times (95% CI 1.04-4.62) the adjusted odds of being suppressed at 12 months and 2.17 times the odds (95% CI 0.92-5.16) at 24 months compared to patients with an ADC diagnosis. For patients diagnosed with ADCs and NADCs in this urban clinic setting, both virologic suppression and immunologic recovery improved over time. Patients with NADCs had the highest odds of virologic suppression in the 2 years following cancer diagnosis. [ABSTRACT FROM AUTHOR]- Published
- 2017
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16. Hepatitis C virus and HIV co-infection among pregnant women in Rwanda.
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Mutagoma, Mwumvaneza, Balisanga, Helene, Sebuhoro, Dieudonné, Mbituyumuremyi, Aimable, Remera, Eric, Malamba, Samuel S., Riedel, David J., and Nsanzimana, Sabin
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HEPATITIS C diagnosis ,HEPATITIS C treatment ,MIXED infections ,DISEASE prevalence ,PREGNANCY complications ,PUBLIC health - Abstract
Background: Hepatitis C virus (HCV) infection is a pandemic causing disease; more than 185 million people are infected worldwide. An HCV antibody (Ab) prevalence of 6.0% was estimated in Central African countries. The study aimed at providing HCV prevalence estimates among pregnant women in Rwanda.Methods: HCV surveillance through antibody screening test among pregnant women attending antenatal clinics was performed in 30 HIV sentinel surveillance sites in Rwanda.Results: Among 12,903 pregnant women tested at antenatal clinics, 335 (2.6% [95% Confidence Interval 2.32-2.87]) tested positive for HCV Ab. The prevalence of HCV Ab in women aged 25-49 years was 2.8% compared to 2.4% in women aged 15-24 years (aOR = 1.3; [1.05-1.59]); This proportion was 2.7% [2.37-2.94] in pregnant women in engaged in non-salaried employment compared to 1.2% [0.24-2.14] in those engaged in salaried employment (aOR = 3.2; [1.60-6.58]). The proportion of HCV Ab-positive co-infected with HIV was estimated at 3.9% (13 cases). Women in urban residence were more likely to be associated with HCV-infection (OR = 1.3; 95%CI [1.0-1.6]) compared to those living in rural setting.Conclusion: HCV is a public health problem in pregnant women in Rwanda. Few pregnant women were co-infected with HCV and HIV. Living in urban setting was more likely to associate pregnant women with HCV infection. [ABSTRACT FROM AUTHOR]- Published
- 2017
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17. Dolutegravir Resistance and Failure in a Kenyan Patient.
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Achieng, Loice and Riedel, David J
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DRUG resistance , *HIV-positive men , *THYMIDINE , *EMTRICITABINE , *VIROLOGY , *HETEROCYCLIC compounds , *HIV , *HIV integrase inhibitors - Abstract
The article presents a case study of a 70-year-old man presented with severe fatigue, wasting and diarrhea. Topics discussed include the patient's diagnosis with HIV in 1995, the treatment for which included thymidine, emtricitabine, and efavirenz; the virological failure detected in the patient, who was then initiated on a regimen of zidovudine, etravirine and dolutegravir; and the diagnosis of dolutegravir resistance in the patient.
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- 2019
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18. Drug resistance mutations after the first 12 months on antiretroviral therapy and determinants of virological failure in Rwanda.
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Ndahimana, Jean d'Amour, Riedel, David J., Mwumvaneza, Mutagoma, Sebuhoro, Dieudone, Uwimbabazi, Jean Claude, Kubwimana, Marthe, Mugabo, Jules, Mulindabigwi, Augustin, Kirk, Catherine, Kanters, Steve, Forrest, Jamie I., Jagodzinski, Linda L., Peel, Sheila A., Ribakare, Muhayimpundu, Redfield, Robert R., and Nsanzimana, Sabin
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DRUG resistance , *GENETIC mutation , *ANTIRETROVIRAL agents , *COHORT analysis , *ACQUISITION of data , *ANTI-HIV agents , *DRUG resistance in microorganisms , *HIV , *RESEARCH funding , *LOGISTIC regression analysis , *VIRAL load , *HIGHLY active antiretroviral therapy , *TREATMENT effectiveness , *RETROSPECTIVE studies , *CD4 lymphocyte count , *ODDS ratio , *GENOTYPES - Abstract
Objective: To evaluate HIV drug resistance (HIVDR) and determinants of virological failure in a large cohort of patients receiving first-line tenofovir-based antiretroviral therapy (ART) regimens.Methods: A nationwide retrospective cohort from 42 health facilities was assessed for virological failure and development of HIVDR mutations. Data were collected at ART initiation and at 12 months of ART on patients with available HIV-1 viral load (VL) and ART adherence measurements. HIV resistance genotyping was performed on patients with VL ≥1000 copies/ml. Multiple logistic regression was used to determine factors associated with treatment failure.Results: Of 828 patients, 66% were women, and the median age was 37 years. Of the 597 patients from whom blood samples were collected, 86.9% were virologically suppressed, while 11.9% were not. Virological failure was strongly associated with age <25 years (adjusted odds ratio [aOR]: 6.4; 95% confidence interval [CI]: 3.2-12.9), low adherence (aOR: 2.87; 95% CI: 1.5-5.0) and baseline CD4 counts <200 cells/μl (aOR 3.4; 95% CI: 1.9-6.2). Overall, 9.1% of all patients on ART had drug resistance mutations after 1 year of ART; 27% of the patients who failed treatment had no evidence of HIVDR mutations. HIVDR mutations were not observed in patients on the recommended second-line ART regimen in Rwanda.Conclusions: The last step of the UNAIDS 90-90-90 target appears within grasp, with some viral failures still due to non-adherence. Nonetheless, youth and late initiators are at higher risk of virological failure. Youth-focused programmes could help prevent further drug HIVDR development. [ABSTRACT FROM AUTHOR]- Published
- 2016
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19. HIV-associated lymphoma sub-type distribution, immunophenotypes and survival in an urban clinic population.
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Riedel, David J., Rositch, Anne F., Redfield, Robert R., and Blattner, William A.
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CANCER immunology , *LYMPHOMAS , *IMMUNOPHENOTYPING , *HIV infection complications , *URBAN health , *CANCER-related mortality - Abstract
HIV-infected patients have an increased risk for both Hodgkin and non-Hodgkin lymphomas. A retrospective cohort of all HIV-infected patients diagnosed with lymphoma in urban clinics from 2000–2013 was evaluated to characterize the distribution and determine effects of sub-type and immunophenotype on survival. Of 160 cases identified, 131 (82%) had complete information and were analyzed. The most common sub-types were diffuse large B cell (41%), Burkitt (21%) and Hodgkin lymphoma (18%). Advanced (78% stage III/IV) and extranodal disease (82%) at presentation were common. CD20 was the most commonly expressed immunophenotypic marker (89%). Overall mortality rate was high (26.1 per 100 person-years). Lower mortality was noted in CD10 + and CD20 + lymphomas, but differences were not statistically significant. After adjustment, low CD4 count (≤ 200) at diagnosis was associated with higher mortality (adjusted hazard ration (AHR) = 1.75; 95% CI = 1.00–3.61). Mortality in this cohort of patients with HIV-associated lymphomas was high and exceeds that from published data from the general population. [ABSTRACT FROM PUBLISHER]
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- 2016
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20. Patterns of HIV viremia and viral suppression before diagnosis of non-AIDS-defining cancers in HIV-infected individuals.
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Riedel, David J., Rositch, Anne F., and Redfield, Robert R.
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HIV infection complications , *VIREMIA , *AIDS , *CHI-squared test , *HODGKIN'S disease , *RESEARCH funding , *T-test (Statistics) , *TIME , *ANAL tumors , *DIAGNOSIS - Abstract
Background: The association between HIV viremia and non-AIDS-defining cancers (NADCs) is not well characterized. Viremia may contribute directly or indirectly to cancer development and may have a differential impact on various cancer types. Our objective was to characterize patterns of HIV viremia in a retrospective, urban, clinical cohort (N = 320) of patients diagnosed with NADCs. Findings: The most common NADC's were lung (n = 60), prostate (n = 47), oropharyngeal (n = 32), liver (n = 29), and anal cancer (n = 20) and Hodgkin lymphoma (n = 18). In the year before cancer diagnosis, 66 % of all patients were virally suppressed. Patients with oropharyngeal (70 %) and prostate cancer (78 %) had a higher proportion of visits with suppressed viral loads. Patients diagnosed with anal cancer and Hodgkin lymphoma were infrequently virally suppressed and more frequently had viral loads ≥5 log10 copies/ml in the ten years prior to cancer diagnosis. Conclusions: In this cohort of HIV-infected patients diagnosed with NADCs, there were important differences in the patterns and levels of viremia between the different NADCs in the ten years prior to cancer diagnosis. Patients with anal cancer and Hodgkin lymphoma had the highest proportion of high level viremia in the ten years before cancer and the lowest frequency of viral load suppression at cancer diagnosis. [ABSTRACT FROM AUTHOR]
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- 2015
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21. 327. Barriers to Positive Health Outcomes in the HIV-Infected Cancer Clinic Population.
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Goldstein, Alexa and Riedel, David J
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HUMAN behavior models , *HIV-positive persons , *MEDICAL care , *CANCER , *SOCIAL support , *HIV seroconversion - Abstract
Background Significant disparities in morbidity and mortality from cancer in HIV-infected persons exist compared with those with cancer in the general population. This study sought to identify psychological, social and economic factors impacting or impeding cancer care in the HIV-infected population. Methods A voluntary, anonymous one-time questionnaire was completed by patients diagnosed with cancer who are HIV-infected and HIV-uninfected at the University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center (UMGCCC). Andersen's Behavioral Model of Health Services Use served as the theoretical framework for assessing psychological, social, and economic barriers to care. We used the chi-square test to evaluate the association between HIV status and barriers to accessing cancer care. Results A total of 25 HIV-infected and 100 HIV-uninfected cases were included. More HIV-infected patients with cancer experienced self-esteem and fear barriers to a greater degree than their HIV-uninfected counterparts (28% vs. 15% for self-esteem, and 40% vs. 21%). A significant proportion of HIV-infected individuals reported experiencing insufficient social support (32% vs. 10% in the HIV-uninfected population, P = 0.01). HIV-infected individuals reported that they did not feel looked down upon in the cancer clinic. They also described that their cancer and HIV diagnoses were delivered in a similar manner by the provider. Conclusion Given that HIV-infected persons are experiencing lower survival rates for most cancer subtypes when compared with their HIV-uninfected counterparts, there is a need to further investigate the feelings of fear, low self-esteem, and insufficient support reported in the HIV-infected sample. Cancer care may need to be tailored to reflect the differences in psychological barriers and enabling resources that continue to be disproportionately prevalent in HIV-infected patients. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]
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- 2019
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22. 345. Acute Onset Diabetic Ketoacidosis/Hyperosmolar Hyperglycemic State in Patients Taking Integrase Strand Transfer Inhibitors.
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Ntem-Mensah, Afua Duker, Millman, Nina, Jakharia, Niyati, Theppote, Amanda, Toeque, Mona-Gekanju, and Riedel, David J
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DIABETIC acidosis ,BLOOD sugar ,METABOLIC syndrome ,INTEGRASE inhibitors ,WEIGHT gain ,HYPERGLYCEMIA ,DYSLIPIDEMIA - Abstract
Background A few case reports have noted uncontrolled hyperglycemia in patients switched to dolutegravir. Several cohort studies have found increased weight gain among patients treated with integrase inhibitors (INSTI). We present clinical observations among 3 patients admitted to hospital for diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS) while receiving INSTIs for the management of HIV. Methods Case 1: A 44-year-old man with HIV and dyslipidemia presented with altered mental status and lethargy. A fingerstick glucose was >600 mg/dL. Chemistries revealed glucose of 1,600 mg/dL and an elevated β-hydroxybutyrate. HbA1c was 12.4%. His antiretroviral regimen consisted of cEVG/TAF/FTC for the last 3 years. Previous HbA1c levels were 5.7% and 6.2% (Figure 1). Case 2: A 55-year-old woman with HIV, hypertension, dyslipidemia, and obesity presented with polyuria and polydipsia. The blood glucose level was >1,200 mg/dL with an anion gap >30 and HbA1c of 15%. Previous HbA1c levels ranged between 5.6 and 5.8% (Figure 2). She had been taking ABC/FTC/DTG for 2 years. Case 3: A 64 yo man with a history of HIV, hypertension, and obesity presented with polyuria and polydipsia. The blood glucose level was 1,152 mg/dL with no anion gap and HbA1c of 13.4%. Six months before, he had been switched from a c/DRV- based ART regimen to ABC/FTC/DTG. Previous HbA1c levels ranged between 5.8% and 6.2% (Figure 3). Results Discussion: In the first 2 patients, the presentation with acute onset DKA occurred more than a year after being on an INSTI-based regimen; however, the latter patient presented with HHS within 6 months of being switched to an INSTI-containing regimen. The mechanism of action of INSTIs causing weight gain or an association with hyperglycemia is still under investigation. Conclusion Although the temporal onset of DKA and HHS while receiving INSTIs was not precise, the possible association of INSTIs and their direct effects on insulin resistance and diabetes warrant additional attention from post-market data. Meanwhile, providers should monitor INSTI-treated patients closely, especially those with features of metabolic syndrome. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]
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- 2019
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23. 2485. Real-world Experience with Dolutegravir Plus Rilpivirine Two-Drug Regimen.
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Ward, Douglas, Scheibel, Steven F, Ramgopal, Moti, Riedel, David J, Garris, Cindy, Oglesby, Alan, Waller, John E, Roberts, Jenna, Mycock, Katie L, Dhir, Shelly, Bonnie, Collins, Megan, Dominguez, Mrus, Joseph, and Pike, James
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PHYSICIAN practice patterns ,VIRAL load - Abstract
Background Three-drug regimens (3DRs) have long been the mainstay of antiretroviral treatment (ART) for HIV. Dolutegravir-based two-drug regimens (DTG 2DRs) are now accepted alternatives to 3DRs, with the first 2DR single tablet regimen (STR), Juluca (DTG/rilpivirine [RPV]), FDA-approved in 2017. This study evaluated treatment patterns of DTG+RPV in clinical practice to understand use prior to availability of DTG/RPV STR. Methods A retrospective medical chart review was conducted across 10 US sites identified as using any DTG 2DRs. Eligible patients were adults initiated on DTG 2DR prior to July 31, 2017 and followed up to January 30, 2018. This analysis describes a subgroup who received DTG+RPV 2DR. Patient demographics, clinical characteristics and treatment history were abstracted from medical charts. Analyses were descriptive. Results From an overall sample of 278 DTG 2DR patients, 66 received DTG+RPV 2DR. In this DTG+RPV subgroup, mean age was 56 years, 79% were male and 68% were Caucasian. Most were treatment-experienced (97%), with an average 15.5 years of prior ART; 48% had received ≥ 4 prior regimens. The most common physician reported reasons for initiating DTG+RPV were avoidance of potential long-term toxicities (53%), toxicity/intolerance of ARVs (20%) and treatment simplification/streamlining (15%). Prior to initiation of DTG+RPV, 70% of patients were virologically suppressed (< 50 copies/mL); of those, 98% remained suppressed after switching to DTG+RPV. Of the 30% of patients with detectable viral load prior to DTG+RPV initiation, 60% achieved and maintained virologic suppression on DTG+RPV. Mean time on DTG+RPV was 1.6 years. Only 5 (8%) patients discontinued DTG+RPV by data cut-off, and one patient was lost to follow-up. Reasons for discontinuation were virologic failure (n = 2), treatment simplification/streamlining (n = 2) and toxicity/intolerance (n = 1). Physicians reported that most patients (91%) achieved the desired outcome from DTG+RPV use. Conclusion Prior to commercial availability of DTG/RPV STR in the United States, DTG+RPV was used primarily in treatment experienced patients, most commonly to avoid potential long-term toxicities. A high proportion of patients achieved the desired outcome and maintained virologic suppression while receiving DTG+RPV. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]
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- 2019
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24. Scaling Up Intensified Tuberculosis Case Finding in HIV Clinics in Rwanda.
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Uwinkindi, Francois, Nsanzimana, Sabin, Riedel, David J., Muhayimpundu, Ribakare, Remera, Eric, Gasana, Michel, Mutembayire, Grace, and Binagwaho, Agnes
- Abstract
Tuberculosis (TB) is the leading cause of morbidity and mortality among people living with HIV (PLHIV) in sub-Saharan Africa. Early TB detection and treatment is key to saving lives of PLHIV. Rwanda began implementing intensified TB case finding (ICF) in 2005 in line with World Health Organization policy on TB/HIV collaborative activities. We aimed to describe trends of ICF in PLHIV newly enrolled into HIV clinics.We used routinely collected program data on ICF from facility-based pre-antiretroviral therapy/antiretroviral therapy registers in Rwandan HIV clinics from 2006 to 2011. Semiannual, active data collection for PLHIV newly enrolled into HIV care included proportion screened for TB, proportion screened positive, and percentage with active TB and started anti-TB drugs.The number of health facilities reporting TB screening indicators increased 16-fold, from 20 facilities in the first semester of 2006 to 328 facilities by the end of 2011. The proportion of patients screened increased progressively from 77% of newly enrolled patients in first semester of 2006 to 94% at the end of 2011 (P < 0.001). The proportion of patients who screened positive decreased over time, from 23% in the first semester of 2006 to 10% at the end of 2011 (P < 0.001). The proportion of active TB cases remained relatively constant over time at 2.2%.Rwanda has increased the proportion of newly enrolled PLHIV screened for TB using a simple screening protocol. Countries with limited resources but high HIV and TB disease prevalence should implement ICF as part of their integrated HIV-TB treatment programs. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
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