Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 13 de 13
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
J Med Virol ; 96(6): e29734, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38884452

RESUMEN

HIV drug resistance mutations (HIVDRMs) are important determinants of therapeutic effects and outcomes even in end-stage kidney failure (ESKF) people living with HIV (PLWHIV). This study evaluated the prevalence of HIVDRMs and their effect on the shedding of HIV-1 into peritoneal dialysis (PD) effluents. This cross-sectional study of PLWHIV and having ESKF and managed with antiretroviral therapy (ART) and PD, collected enrolled patients' demographic information, clinical and laboratory data, and sequenced HIV-1 RNA in unsuppressed plasma and PD effluent samples. HIV viral load and HIVDRMs were determined using qualitative polymerase chain reaction (qPCR) and Stanford University HIVDRM Database, respectively. There were 60 participants recruited with a median age of 43.0 (interquartile range [IQR], 38.0-47) years and were predominantly on abacavir (88.3%), lamivudine (98.3%), and efavirenz (70%) for a median duration of 8 (IQR, 5-11) years. Among participants with detectable HIV-1 in PD effluents, the prevalence of HIVDRMs was 62.5% (5/8) compared to 7.7% (4/52) among those with undetectable HIV-1 (p = 0.001) with non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance mutations predominating. On Spearman's correlation analysis, high plasma HIV levels (ρ = 0.649, p < 0.001), T-cell CD4 count (ρ = -0370, p < 0.004), serum creatinine (ρ = -0.396, p < 0.002), and white blood cell count (ρ = -0.294, p < 0.023) levels were significant factors correlated with the detection of HIV-1 in PD effluents. Moreover, HIVDRMs presence (ρ = 0.504, p < 0.001) particularly NNRTI resistance (ρ = 0.504, p < 0.001) were also significantly correlated with detection of HIV-1 in PD effluents. The presence of HIVDRMs, high plasma HIV viral load, and T-cell CD4 count were correlated with HIV-1 shedding into PD effluents.


Asunto(s)
Farmacorresistencia Viral , Infecciones por VIH , VIH-1 , Mutación , Diálisis Peritoneal , Carga Viral , Esparcimiento de Virus , Humanos , VIH-1/genética , VIH-1/efectos de los fármacos , Masculino , Infecciones por VIH/virología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Femenino , Estudios Transversales , Persona de Mediana Edad , Adulto , Farmacorresistencia Viral/genética , Prevalencia , ARN Viral/genética , Fármacos Anti-VIH/uso terapéutico , Fármacos Anti-VIH/farmacología , Fallo Renal Crónico/terapia , Recuento de Linfocito CD4
2.
BMC Health Serv Res ; 23(1): 446, 2023 May 05.
Artículo en Inglés | MEDLINE | ID: mdl-37147670

RESUMEN

BACKGROUND: Human resources for health (HRH) shortages are a major limitation to equitable access to healthcare. African countries have the most severe shortage of HRH in the world despite rising communicable and non-communicable disease (NCD) burden. Task shifting provides an opportunity to fill the gaps in HRH shortage in Africa. The aim of this scoping review is to evaluate task shifting roles, interventions and outcomes for addressing kidney and cardiovascular (CV) health problems in African populations. METHODS: We conducted this scoping review to answer the question: "what are the roles, interventions and outcomes of task shifting strategies for CV and kidney health in Africa?" Eligible studies were selected after searching MEDLINE (Ovid), Embase (Ovid), CINAHL, ISI Web of Science, and Africa journal online (AJOL). We analyzed the data descriptively. RESULTS: Thirty-three studies, conducted in 10 African countries (South Africa, Nigeria, Ghana, Kenya, Cameroon, Democratic Republic of Congo, Ethiopia, Malawi, Rwanda, and Uganda) were eligible for inclusion. There were few randomized controlled trials (n = 6; 18.2%), and tasks were mostly shifted for hypertension (n = 27; 81.8%) than for diabetes (n = 16; 48.5%). More tasks were shifted to nurses (n = 19; 57.6%) than pharmacists (n = 6; 18.2%) or community health workers (n = 5; 15.2%). Across all studies, the most common role played by HRH in task shifting was for treatment and adherence (n = 28; 84.9%) followed by screening and detection (n = 24; 72.7%), education and counselling (n = 24; 72.7%), and triage (n = 13; 39.4%). Improved blood pressure levels were reported in 78.6%, 66.7%, and 80.0% for hypertension-related task shifting roles to nurses, pharmacists, and CHWs, respectively. Improved glycaemic indices were reported as 66.7%, 50.0%, and 66.7% for diabetes-related task shifting roles to nurses, pharmacists, and CHWs, respectively. CONCLUSION: Despite the numerus HRH challenges that are present in Africa for CV and kidney health, this study suggests that task shifting initiatives can improve process of care measures (access and efficiency) as well as identification, awareness and treatment of CV and kidney disease in the region. The impact of task shifting on long-term outcomes of kidney and CV diseases and the sustainability of NCD programs based on task shifting remains to be determined.


Asunto(s)
Hipertensión , Enfermedades no Transmisibles , Humanos , Hipertensión/epidemiología , Hipertensión/terapia , Consejo , Riñón , Malaui
3.
BMC Nephrol ; 22(1): 174, 2021 05 11.
Artículo en Inglés | MEDLINE | ID: mdl-33975539

RESUMEN

BACKGROUND: End-stage kidney disease (ESKD) and the required kidney replacement therapy (KRT) are significant public health challenges for low-and-middle-income countries. The South African government adopted a KRT rationing policy to balance the growing need for KRT and scarce resources. We aimed to describe the epidemiology and KRT access in patients with ESKD referred to the main public sector hospital in the Free State Province, South Africa. METHODS: A retrospective study of adult patients with ESKD admitted to Universitas Academic Hospital for KRT, was conducted between 1 January 2016 and 31 December 2018. A review of the KRT committee decisions to offer or deny KRT based on the KRT rationing policy of the Free State was undertaken. Demographic information, KRT committee outcomes, laboratory test results, and clinical details were collected from assessment tools, KRT committee meeting diaries, and electronic hospital records. RESULTS: Of 363 patients with ESKD referred for KRT access, 96 with incomplete records were excluded and 267 were included in the analysis. Median patient age was 40 (interquartile range, 33‒49) years, and male patients accounted for 56.2 % (150/267, p = 0.004) of the cohort. The average annual ESKD incidence was 49.9 (95 % confidence interval [CI], 35.8‒64.0) per-million-population. The most prevalent comorbidities were hypertension (42.3 %; 113/267), human immunodeficiency virus (HIV) (28.5 %; 76/267), and diabetes mellitus (19.1 %; 51/267). The KRT access rate was 30.7 % (82/267), with annual KRT incidence rates of 8.05 (95 % CI, 4.98‒11.1), 11.5 (95 % CI, 7.83‒15.1), and 14.1 (95 % CI, 10.3‒18.0) per-million-population in 2016, 2017, and 2018, respectively. Advanced organ dysfunction was the commonest reason recorded for KRT access denial (58.9 %; 109/185). Age (odds ratio [OR], 1.04; 95 % CI, 1.00‒1.07; p = 0.024) and diabetes (OR, 5.04; CI, 1.69‒15.03; p = 0.004) were independent predictors for exclusion from KRT, while hypertension (OR, 1.80; 1.06‒3.04; p = 0.029) independently predicted advanced organ dysfunction resulting in KRT exclusion. CONCLUSIONS: Non-communicable and communicable diseases, including hypertension, diabetes, and HIV, contributed to ESKD, highlighting the need for improved early prevention strategies to address a growing incidence rate. Two-thirds of ESKD patients were unable to access KRT, with age, diabetes mellitus, and advanced organ dysfunction being significant factors adversely affecting KRT access.


Asunto(s)
Asignación de Recursos para la Atención de Salud/estadística & datos numéricos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Fallo Renal Crónico/terapia , Terapia de Reemplazo Renal , Adulto , Femenino , Humanos , Fallo Renal Crónico/diagnóstico , Fallo Renal Crónico/etiología , Masculino , Persona de Mediana Edad , Diálisis Renal , Estudios Retrospectivos , Sudáfrica
4.
J Med Virol ; 91(10): 1797-1803, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31180137

RESUMEN

Occult hepatitis B virus (HBV) infection (OBI) is defined as the presence of HBV DNA in the liver with or without detectable HBV DNA in the serum of individuals testing HBV surface antigen (HBsAg) negative using currently available assays. The prevalence of OBI among patients receiving hemodialysis (HD) treatment remains poorly characterized in South Africa despite the high prevalence of HBV. We sought to determine the prevalence of OBI in HD units in tertiary hospitals of KwaZulu-Natal and to characterize the HBV S gene mutations potentially responsible for OBI. A cross-sectional descriptive study of residual diagnostic plasma samples from 85 HBsAg-negative patients receiving HD treatment was included. The PreS/S gene was amplified with a nested HBV polymerase chain reaction for downstream next-generation sequencing, to determine the viral genotype and identify S gene mutations associated with OBI. Nine of the 85 samples had OBI, based on detectable HBV DNA. The point prevalence of OBI was 10.6% (95% control interval: 5.5%-19.1%). Phylogenetic analysis of the samples with OBI showed that all belonged to genotype A. Three (~33%) samples had mutations in the major hydrophilic region (MHR) within the S gene, three (~33%) had mutations within the S gene but outside the MHR, whilst the remaining three had no mutations observed. The prevalence of OBI in HBsAg-negative patients undergoing HD was 10.6%, suggesting that OBI is a clinically significant problem in patients with HD in this region. The screening methods for HBV infection need to be revised to include nucleic acid testing.


Asunto(s)
Virus de la Hepatitis B/aislamiento & purificación , Hepatitis B/diagnóstico , Hepatitis B/epidemiología , Adulto , Secuencia de Aminoácidos , Estudios Transversales , Femenino , Genotipo , Unidades de Hemodiálisis en Hospital , Virus de la Hepatitis B/genética , Humanos , Masculino , Filogenia , Diálisis Renal , Sudáfrica/epidemiología , Carga Viral , Proteínas Virales
5.
Ren Fail ; 41(1): 303-313, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30991864

RESUMEN

INTRODUCTION: Staphylococcal infections can cause significant morbidity in patients undergoing dialysis. This study evaluated the effects of HIV infection on nasal carriage of Staphylococcus aureus, staphylococcal peritonitis, and catheter infection rates in patients with end-stage renal failure managed with continuous ambulatory peritoneal dialysis (CAPD). METHODS: Sixty HIV-positive and 59 HIV-negative CAPD patients were enrolled and followed up for up to 18 months. S. aureus nasal carriage (detected by nasal swab culture), Staphylococcal peritonitis (diagnosed by clinical presentation, and CAPD effluent Staphylococcal culture and white blood cell count ≥100 cells/µL), and catheter infections (including exit site and tunnel infections) were assessed monthly. RESULTS: At 18 months, S. aureus nasal carriage rates were 43.3% and 30.5% (p = 0.147) and the methicillin-resistant S. aureus (MRSA) nasal carriage rates were 31.7% and 13.6% (p = 0.018) for the HIV-positive and HIV-negative cohorts, respectively. The HIV-positive cohort was associated with increased hazards for staphylococcal peritonitis, (adjusted hazard ratio [AHR] 2.85, 95% confidence interval [CI] 1.19-6.84, p = 0.019) due to increased coagulase-negative staphylococcal (CNS) peritonitis rate in the HIV-positive cohort compared with the HIV-negative cohort (0.435 vs. 0.089 episodes/person-years; AHR 7.64, CI 2.18-26.82, p = 0.001). On multivariable analysis, CD4+ cell count <200 cells/µL, diabetes, and S. aureus nasal carriage were found to be independent predictors of S. aureus peritonitis. CONCLUSIONS: These findings suggest that HIV infection may be a risk factor for MRSA nasal colonization and may increase the risks of CNS peritonitis, while a CD4+ cell count <200 cells/µL and S. aureus nasal carriage may be important predictors of S. aureus peritonitis.


Asunto(s)
Portador Sano/epidemiología , Infecciones por VIH/inmunología , Fallo Renal Crónico/terapia , Diálisis Peritoneal Ambulatoria Continua/efectos adversos , Adulto , Portador Sano/inmunología , Portador Sano/microbiología , Infecciones Relacionadas con Catéteres/epidemiología , Infecciones Relacionadas con Catéteres/inmunología , Infecciones Relacionadas con Catéteres/microbiología , Catéteres de Permanencia/efectos adversos , Catéteres de Permanencia/microbiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Persona de Mediana Edad , Nariz/microbiología , Diálisis Peritoneal Ambulatoria Continua/instrumentación , Peritonitis/epidemiología , Peritonitis/inmunología , Peritonitis/microbiología , Estudios Prospectivos , Factores de Riesgo , Infecciones Estafilocócicas/epidemiología , Infecciones Estafilocócicas/inmunología , Infecciones Estafilocócicas/microbiología
6.
Nephrol Dial Transplant ; 32(4): 714-721, 2017 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-28339647

RESUMEN

Background: We evaluated the shedding of human immunodeficiency virus (HIV)-1 particles into continuous ambulatory peritoneal dialysis (CAPD) effluents of HIV-positive patients with end-stage renal disease (ESRD). Methods: A total of 58 HIV-positive patients with ESRD on highly active antiretroviral therapy (HAART) who had Tenckhoff catheters inserted between September 2012 and February 2015 were prospectively reviewed and followed for 18 months. Peritoneal dialysis (PD) effluent samples from functioning CAPD catheters and plasma samples were obtained at three points during regular clinic visits on days 45 ± 37, 200 ± 19 and 377 ± 13 after catheter insertion. All specimens were stored at -20°C, and each batch was analysed by Roche quantitative HIV-1 polymerase chain reaction assay to detect HIV-1 particles. Clustered logistic regression was used to test for independent predictors of HIV-1 detection in CAPD effluents. Results: HIV-1 RNA above 20 copies/mL assay limit was detectable in 19% (first batch), 26.3% (second batch) and 20% (third batch) of PD effluent specimens. HIV-1 RNA was detectable in PD fluid, without corresponding detection in the paired plasma in 3.4% (first batch), 5.3% (second batch) and 10% (third batch) of samples. Detection of HIV-1 in plasma sample (odds ratios 3.94; 95% confidence interval 1.14-13.55; P = 0.030), body mass index, serum albumin and HAART regimen were found to be significantly associated with HIV-1 detection in PD effluents. Conclusions: HIV particles are shed in detectable amounts into CAPD effluents even in patients with suppressed plasma viral load, raising concerns of a localized sanctuary site and potential infectivity of HIV-positive CAPD patients on a full complement of HAART.


Asunto(s)
Terapia Antirretroviral Altamente Activa/efectos adversos , Infecciones por VIH/fisiopatología , Fallo Renal Crónico/diagnóstico , Diálisis Peritoneal Ambulatoria Continua , Peritoneo/metabolismo , ARN Viral/genética , Esparcimiento de Virus/efectos de los fármacos , Adulto , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/virología , VIH-1/efectos de los fármacos , Humanos , Fallo Renal Crónico/inducido químicamente , Fallo Renal Crónico/genética , Fallo Renal Crónico/terapia , Masculino , Estudios Prospectivos , ARN Viral/análisis , Carga Viral/efectos de los fármacos
7.
BMC Nephrol ; 18(1): 48, 2017 02 03.
Artículo en Inglés | MEDLINE | ID: mdl-28158991

RESUMEN

BACKGROUND: Few studies have investigated the management of human immunodeficiency virus (HIV)-associated end-stage renal failure particularly in low-resource settings with limited access to renal replacement therapy. We aimed to evaluate the effects of HIV infection on continuous ambulatory peritoneal dialysis (CAPD)-associated peritonitis outcomes and technique failure in highly active antiretroviral therapy (HAART)-treated HIV-positive CAPD populations. METHODS: We conducted a single-center prospective cohort study of consecutive incident CAPD patients recruited from two hospitals in Durban, South Africa from September 2012-February 2015. Seventy HIV-negative and 70 HIV-positive end-stage renal failure patients were followed monthly for 18 months at a central renal clinic. Primary outcomes of peritonitis and catheter failure were assessed for the first 18 months of CAPD therapy. We assessed risk factors for peritonitis and catheter failure using Cox regression survival analysis. RESULTS: The HIV-positive cohort had a significantly increased rate of peritonitis compared to the HIV-negative cohort (1.86 vs. 0.76 episodes/person-years, respectively; hazard ratio [HR], 2.41; 95% confidence interval [CI], 1.69-3.45, P < 0.001). When the baseline CD4 count was below 200 cells/µL, the peritonitis rate rose to 3.69 episodes/person-years (HR 4.54, 95% CI 2.35-8.76, P < 0.001), while a baseline CD4 count above 350 cells/µL was associated with a peritonitis rate of 1.60 episodes/person-years (HR 2.10, CI 1.39-3.15, P = 0.001). HIV was associated with increased hazards of peritonitis relapse (HR, 3.88; CI, 1.37-10.94; P = 0.010). Independent predictors associated with increased peritonitis risk were HIV (HR, 1.84; CI, 1.07-3.16; P = 0.027), diabetes (HR, 2.09; CI, 1.09-4.03; P = 0.027) and a baseline CD4 count < 200 cells/µL (HR, 3.28; CI, 1.42-7.61; P = 0.006). Catheter failure rates were 0.34 (HIV-positive cohort) and 0.24 (HIV-negative cohort) episodes/person-years (HR, 1.42; 95% CI, 0.73-2.73; P = 0.299). Peritonitis (HR, 14.47; CI, 2.79-75.00; P = 0.001), average hemoglobin concentrations (HR, 0.75; CI, 0.59-0.95; P = 0.016), and average serum C-reactive protein levels were independent predictors of catheter failure. CONCLUSIONS: HIV infection in end-stage renal disease patients managed by CAPD was associated with increased peritonitis risk; however, HIV infection did not increase the risk for CAPD catheter failure rate at 18 months.


Asunto(s)
Infecciones Relacionadas con Catéteres/epidemiología , Infecciones por VIH/tratamiento farmacológico , Fallo Renal Crónico/terapia , Peritonitis/epidemiología , Adulto , Terapia Antirretroviral Altamente Activa , Recuento de Linfocito CD4 , Estudios de Casos y Controles , Infecciones Relacionadas con Catéteres/terapia , Estudios de Cohortes , Falla de Equipo/estadística & datos numéricos , Femenino , Infecciones por VIH/sangre , Infecciones por VIH/complicaciones , Humanos , Fallo Renal Crónico/complicaciones , Masculino , Persona de Mediana Edad , Diálisis Peritoneal Ambulatoria Continua , Peritonitis/terapia , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo , Sudáfrica/epidemiología
8.
Int J Hypertens ; 2021: 7243523, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34671490

RESUMEN

INTRODUCTION: Hypertension is a major global cause of cardiovascular disease and death with rising worldwide prevalence, particularly in low-income countries. With low awareness, poor treatment, and low control of hypertension in Africans, there is an increased number of patients with target organ damage (TOD), especially chronic kidney disease (CKD), as a consequence of hypertension. The aim of our study is to assess the prevalence of CKD from studies in Africa reporting TOD related to hypertension. METHODS: We performed a search of PubMed/MEDLINE, Web of Science, EBSCOhost, and African Journals Online (AJOL) for studies reporting on CKD as TOD in patients with hypertension. The pooled estimate of CKD was then presented by subregions, age group, eGFR equations, and urban or rural location. RESULTS: We identified 1,334 articles from which 12 studies were included for quantitative analysis. The studies included 5297 participants from 6 countries (Ghana, Nigeria, Uganda, Tanzania, Democratic Republic of Congo, and South Africa). The pooled prevalence of CKD was 17.8% (95% CI 13.0-23.3%), and CKD was significantly more prevalent in West Africa (21.3% (95% CI: 16.1-27.0); p < 0.0001) and in studies conducted in urban settings (p < 0.001). CKD prevalence was not significantly different by type of GFR equation or age. CONCLUSION: This study reports a high prevalence of CKD related to hypertension with a higher prevalence in urban than rural areas. This emphasizes the role of hypertension in causing kidney damage, and the need for strategies to improve awareness, treatment, and control of hypertension in Africans. This study is registered with PROSPERO registration number CRD42018089263.

9.
PLoS One ; 15(11): e0241845, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33152017

RESUMEN

OBJECTIVE: We wished to determine the prevalence, etiology, presentation, and available management strategies for primary adrenal insufficiency (PAI) in South Africa (SA), hypothesizing a prevalence greater than the described 3.1 per million. There is great inequity in healthcare allocation, as two parallel healthcare systems exist, potentially modifying PAI patients' clinical profiles, private being better resourced than public healthcare. METHODS: An online survey of physicians' experience relating to PAI. RESULTS: The physicians were managing 811 patients, equal to a prevalence of 14.2 per million. Likely causes of PAI in public/ academic vs private settings included: AIDS-related [304 (44.8%) vs 5 (3.8%); p<0.001], tuberculosis [288 (42.5%) vs 8 (6.0%); p<0.001], autoimmune disease [50 (7.4%) vs 88 (66.2%); p<0.001], malignancy [27 (4.0%) vs 7 (5.3%); p = 0.500], genetic including adrenoleukodystrophy (ALD) [5 (0.7%) vs 16 (12.0%); p<0.001], respectively. Overall, more patients presented with nausea [101 (74.3%) and vomiting 89 (65.9%), than diarrhoea 76 (58.9%); p = 0.008 and 126 (15.5%) in adrenal crisis. Features suggestive of a crisis were hypoglycaemia [40 (78.4%) vs 42 (48.8%); p = 0.001], shock [36 (67.9%) vs 31(36.9%); p<0.001], and loss of consciousness [25 (52.1%) vs 27 (32.9%); p = 0.031]. Greater unavailability of antibody testing in the public vs. the private sector [32 (66.7%) vs 30 (32.1%); p = 0.001], [serum-ACTH 25 (52.1%) vs 16 (19.5%); p<0.001] and glucocorticoids were [26 (54.2%) vs 33 (40.2%); p = 0.015]. Many patients, 389(66.7%) were not using identification, indicating that they need steroids in an emergency. CONCLUSION: A survey of South African physicians suggests a higher prevalence than previously reported. Patients presented with typical symptoms, and 15.5% presented in adrenal crisis. Significant disparities in the availability of physicians' expertise, diagnostic resources, and management options were noted in the public versus private settings. Greater awareness among health practitioners to timeously diagnose PAI is required to prevent a life-threatening outcome.


Asunto(s)
Insuficiencia Suprarrenal/epidemiología , Enfermedades Transmisibles/epidemiología , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Adolescente , Insuficiencia Suprarrenal/etiología , Adulto , Niño , Preescolar , Enfermedades Transmisibles/complicaciones , Estudios Transversales , Manejo de la Enfermedad , Femenino , Instituciones de Salud , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Prevalencia , Sector Privado/estadística & datos numéricos , Sector Público/estadística & datos numéricos , Factores de Riesgo , Sudáfrica/epidemiología , Adulto Joven
10.
Endocr Connect ; 9(5): 445-456, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32348958

RESUMEN

BACKGROUND: The burden and management of primary adrenal insufficiency (PAI) in Africa have not been well documented. We aimed to identify specific disease characteristics, patient demographics, and patterns of clinical management in established PAI in Africa. METHODS: An online survey of physicians' experience relating to PAI. RESULTS: There were 1334 responses received, 589 were complete, and 332 respondents reported managing patients with hypoadrenalism. The described responses were related to a calculated pool of 5787 patients with hypoadrenalism (2746 females, 3041 males), of whom 2302 had PAI. The likely causes of PAI in Sub-Saharan Africa (SSA) vs the Middle East and North Africa (MENA) regions included autoimmune disease (20% vs 60.3%; P < 0.001), tuberculosis (34% vs 4.1%; P < 0.001), AIDS (29.8% vs 1%; P < 0.001), malignancy, and genetic conditions. Sixteen percent of AD patients (376/2302) presented in an adrenal crisis. Medical emergency identification was not used by 1233 (83.6%) SSA vs 330 (40.4%) MENA patients (P < 0.001), respectively. Relative non-availability of diagnostic tests across both regions included adrenal antibodies 63% vs 69.6% (P = 0.328), s-cortisol 49.4 % vs 26.7% (P = 0.004), s-ACTH 55.7% vs 53.3% (P = 0.217), and adrenal CT scans 52.4% vs 31.8% (P = 0.017) in the SSA and MENA region, respectively. Across the entire cohort, the overall hydrocortisone use and extrapolated proportion of synacthen use were 59.4% and 50.7%, respectively. CONCLUSIONS: Through the perception and practice of healthcare professionals, we identified significant challenges in the diagnosis and management of PAI which may herald high mortality. Differences between regions may reflect the allocation of healthcare resources.

11.
PLoS One ; 14(6): e0218156, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31181128

RESUMEN

BACKGROUND: Peritoneal dialysis (PD) is an easily implementable dialysis modality in end-stage renal disease (ESRD). PD may improve access to renal replacement therapy in low- and middle-income countries; however, these countries have a higher prevalence of protein-energy wasting in patients and poorer socioeconomic conditions. We evaluated the effects of HIV infection on serum albumin levels in ESRD patients starting continuous ambulatory PD (CAPD) and mortality outcomes. METHODS: We conducted a single-center prospective cohort study of consecutive incident CAPD patients recruited from two hospitals in Durban, South Africa, from September 2012 to February 2015. Seventy HIV-negative and 70 HIV-positive ESRD patients were followed monthly for serum albumin levels and mortality events during the first 18 months of CAPD therapy. RESULTS: The HIV-positive cohort recorded 28 deaths (40%) among patients with a functional CAPD catheter at 18 months and 13 deaths (18.6%) in the HIV-negative cohort (p = 0.005). The mean serum albumin levels were lower in the HIV-positive cohort than in the HIV-negative cohort during the 18-month follow-up. The mean difference in serum albumin levels between the two cohorts was 4.24 g/L (95% confidence interval [CI] 2.02-6.46, p<0.001) at baseline and 3.99 g/L (95% CI 1.19-6.79, p = 0.006) at 18 months. HIV-positive status (adjusted regression coefficient -2.84, CI -5.00--0.67, p = 0.011), diabetes (adjusted coefficient -2.85; CI, -5.58--0.12; p = 0.041), and serum C-reactive protein and blood hemoglobin levels were independent predictors of serum albumin levels on multivariable linear regression. Baseline serum albumin <25 g/L (subdistribution-hazard ratio [SHR] 13.06, 95% CI 3.09-55.14, p<0.001) and CD4+ cell count <200 cells/µL (SHR 3.2, CI 1.38-7.45, p = 0.007) were independent predictors of mortality in our competing risk model. CONCLUSIONS: HIV infection can adversely affect serum albumin levels in ESRD patients managed with CAPD, while low baseline serum albumin levels and impaired immunity reliably predict mortality.


Asunto(s)
Infecciones por VIH/metabolismo , Infecciones por VIH/mortalidad , Fallo Renal Crónico/metabolismo , Fallo Renal Crónico/mortalidad , Albúmina Sérica/metabolismo , Proteína C-Reactiva/metabolismo , Recuento de Linfocito CD4/métodos , Infecciones por VIH/virología , Humanos , Fallo Renal Crónico/virología , Diálisis Peritoneal Ambulatoria Continua/métodos , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Sudáfrica
12.
Saudi J Kidney Dis Transpl ; 29(6): 1506-1510, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30588988

RESUMEN

Periarticular calcification is a frequent radiographic manifestation in chronic kidney disease (CKD). However, clinical presentation as inflammatory periarthritis, tenosynovitis, and bursitis is unusual. A 34-year-old man with CKD on dialysis for three years presented with painful swollen joints. His adherence to regular dialysis, phosphate binders, Vitamin D supplements, and antihypertension therapy was poor. He had swelling of the right thumb, index, and little fingers; periarticular swelling of the left middle finger and right little toe; and extensor tenosynovitis of the wrists and right olecranon bursitis. Laboratory investigations showed the following: urea 36 mmol/L; creatinine 1764 umol/L; serum urate 0.37 mmol/L; corrected calcium 1.76 mmol/L; phosphate 4.32 mmol/L; 25-dihydroxycholecalciferol 30 ng/mL; and parathyroid hormone 104 pmol/L. Radiographs showed periarticular calcification corresponding to the sites of inflammation. The inflammation resolved with oral steroids. In our patient, deranged mineral and bone metabolism contributed to periarticular calcification at multiple sites, mimicking inflammatory polyarthritis.


Asunto(s)
Artritis/diagnóstico por imagen , Calcinosis/diagnóstico por imagen , Trastorno Mineral y Óseo Asociado a la Enfermedad Renal Crónica/etiología , Articulaciones de los Dedos/diagnóstico por imagen , Insuficiencia Renal Crónica/complicaciones , Articulación del Dedo del Pie/diagnóstico por imagen , Adulto , Calcinosis/etiología , Calcinosis/terapia , Trastorno Mineral y Óseo Asociado a la Enfermedad Renal Crónica/diagnóstico , Trastorno Mineral y Óseo Asociado a la Enfermedad Renal Crónica/terapia , Diagnóstico Diferencial , Humanos , Masculino , Valor Predictivo de las Pruebas , Insuficiencia Renal Crónica/diagnóstico , Insuficiencia Renal Crónica/terapia
13.
Perit Dial Int ; 37(3): 321-330, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27935535

RESUMEN

♦ BACKGROUND: This study aimed to evaluate the differences in continuous ambulatory peritoneal dialysis (CAPD)-related outcomes according to human immunodeficiency virus (HIV) status of end-stage renal failure patients. ♦ METHODS: This prospective cohort study included 70 HIV-negative and 70 HIV-positive consecutive patients with renal failure who underwent dialysis with newly inserted Tenckhoff catheters between September 2012 and February 2015. Patients were followed up monthly at a central renal clinic for 1 year or until the primary endpoints of technique failure or death. ♦ RESULTS: Technique failure rates were similar (HIV-negative: 0.270 episodes/person-year; HIV-positive: 0.298 episodes/person-year; hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.51 - 2.32; p = 0.822). However, there were fewer HIV-positive patients with complete 1-year follow-up with a patent catheter (42.9% vs 58.6% in the HIV-negative cohort; p = 0.063) owing to their higher all-cause mortality rate (0.55 vs 0.25 deaths/person-year, respectively; HR, 2.11; CI, 1.07 - 4.14; p = 0.031). Cluster of differentiation 4 count (CD4) < 200/µL (HR, 5.39; CI, 2.20 - 13.21; p < 0.001) and unsuppressed viral load (HR, 3.63; CI 1.72 - 7.67; p = 0.001) were associated with increased mortality hazards. Rates of first peritonitis were 0.616 (HIV-negative) and 1.668 (HIV-positive) episodes/person-year (HR, 2.38; CI, 1.46 - 3.89; p = 0.001). All-cause admission rates were 1.52 (HIV-negative) and 2.97 (HIV-positive) hospital admissions/person-year (HR, 1.66; CI, 1.12 - 2.48; p = 0.013). ♦ CONCLUSION: Although HIV-seropositive status of patients on CAPD did not adversely influence technique failure rates or patency at 1 year, uncontrolled HIV infection may be associated with increased relative risk of mortality and morbidity.


Asunto(s)
Infecciones por VIH/complicaciones , VIH , Fallo Renal Crónico/terapia , Diálisis Peritoneal Ambulatoria Continua/efectos adversos , Medición de Riesgo , Adolescente , Adulto , Estudios de Seguimiento , Infecciones por VIH/epidemiología , Infecciones por VIH/terapia , Humanos , Fallo Renal Crónico/complicaciones , Fallo Renal Crónico/epidemiología , Persona de Mediana Edad , Morbilidad/tendencias , Admisión del Paciente/tendencias , Diálisis Peritoneal Ambulatoria Continua/mortalidad , Estudios Prospectivos , Estudios Retrospectivos , Factores de Riesgo , Sudáfrica/epidemiología , Tasa de Supervivencia/tendencias , Insuficiencia del Tratamiento , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA