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1.
PLoS One ; 18(3): e0282539, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36877687

RESUMEN

INTRODUCTION: Hepatocellular carcinoma (HCC) is an increasing cause of mortality in Nigeria among persons with HIV (PLH), as access to antiretroviral therapy (ART) improves. In this study we describe clinical, radiological, and laboratory characteristics in Nigerian adults with HCC, with and without HIV, and examine how HIV impacts survival. METHODS: This prospective observational study was conducted between August 2018 and November 2021 at two Nigerian hospitals [Jos University Teaching Hospital (JUTH) and Lagos University Teaching Hospital (LUTH)]. Subjects ≥18 years with HCC diagnosed according to American Association for the Study of Liver Diseases (AASLD) criteria were included. Baseline characteristics were compared, and Kaplan-Meier curves were generated to estimate survival. RESULTS: 213 subjects [177 (83%) without HIV and 36 (17%) with HIV (PLH)] were enrolled. Median age was 52 years (IQR 42,60) and most subjects were male (71%). 83% PLH were on antiretroviral therapy (ART). Hepatitis B surface antigen (HBsAg) positivity was similar between the two groups [91/177 (51%) without HIV vs. 18/36 (50%) with HIV; p = 0.86]. 46/213 (22%) subjects had active hepatitis C (anti-HCV+/HCV RNA>10 IU/mL). Cirrhosis was more common in PLH but there were no other significant differences in clinical and tumor characteristics between the groups. Overall, 99% subjects were symptomatic and 78% in late-stage HCC. Median overall survival was significantly shorter in PLH vs. without HIV (0.98 months vs 3.02 months, HR = 1.55, 95%CI 1.02, 2.37, p = 0.04). This association was not significant after adjusting for known risk factors including gender, current alcohol use, alpha-fetoprotein (AFP), albumin, and total bilirubin (HR = 1.38, 95%CI 0.84, 2.29, p = 0.21). CONCLUSION: HCC presented late with an extremely poor overall prognosis, highlighting the urgent need for more intensive surveillance in Nigeria to diagnose HCC at earlier stages. Early diagnosis and management of viral hepatitis, and access to HCC therapies, could prevent early mortality among persons with HCC, especially among PLH.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Adulto , Masculino , Humanos , Persona de Mediana Edad , Femenino , Carcinoma Hepatocelular/complicaciones , Carcinoma Hepatocelular/diagnóstico , Neoplasias Hepáticas/diagnóstico , Nigeria/epidemiología , Pronóstico , Hospitales de Enseñanza , Antirretrovirales
2.
J Patient Saf ; 17(3): e128-e134, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-28376057

RESUMEN

ABSTRACT: Safety metrics in healthcare settings stand apart from those in all other industries. Despite improvements in the measurement and prevention of adverse health outcomes following the 1999 Institute of Medicine report, no fully operational national-level program for monitoring patient harm exists. Here, we review the annual rate of fatal adverse events in healthcare settings in the United States on the basis of previous research, assess the current state of measurements of patient harm, propose a national standard to both quantify harm and act as a performance driver for improved safety, and discuss additional considerations such as accountability and implications for tort reform under this standard. On the basis of experiences in other sectors, we propose a federally mandated, nonpunitive national system that relies on accurate measurement as a driver of performance.


Asunto(s)
Atención a la Salud , Seguridad del Paciente , Humanos , Responsabilidad Legal , Responsabilidad Social , Estados Unidos
3.
J Natl Med Assoc ; 113(1): 54-58, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32763132

RESUMEN

OBJECTIVE: We evaluated the effects of menstrual types inclusive of PMS on reports of chronic pain intensity and psychopathology in twenty-eight women (mean age 38.93 ± 13.51) with Sickle Cell disease (SCD). METHODS: Using the Menstrual Symptoms Questionnaire, we compared women with PMS to those with less distressing spasmodic cycle types. RESULTS: Thirty-four percent of the sample used oral contraception; there were no significant effects of birth control use on reports of pain. Women with PMS characterized the sensory (p = .04) and affective (p = .04) experiences of their SCD-related chronic pain, including their current pain intensity (p = .03), as significantly greater than women with primary spasmodic menstrual type. Further, there was a trend towards significance for women with PMS to report greater levels of overall pain intensity (p = .07) and average pain intensity over the past month (p = .08). CONCLUSIONS: The authors interpret these results to suggest that there may be a complex interaction of neurohormonal, biological, and psychological factors associated with PMS that influence manifestation and experience of chronic pain in patients with SCD.


Asunto(s)
Anemia de Células Falciformes , Dolor Crónico , Distrés Psicológico , Adulto , Anemia de Células Falciformes/complicaciones , Dolor Crónico/epidemiología , Dolor Crónico/etiología , Femenino , Humanos , Persona de Mediana Edad , Encuestas y Cuestionarios
5.
J Law Med Ethics ; 46(2): 268-271, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30146992

RESUMEN

The opioid epidemic has claimed the lives of more than 183,000 individuals since 1999 and is now the leading cause of accidental death in the United States. Meanwhile, rates of incarceration have quadrupled in recent decades, and drug use is the leading cause of incarceration. Medication-assisted treatment or MAT (i.e. methadone, buprenorphine) is the gold standard for treatment of opioid use disorder. Incarcerated individuals with opioid use disorder treated with methadone or buprenorphine have a lower risk of overdose, lower rates of hepatitis C transmission, and lower rates of re-incarceration. Despite evidence of improved outcomes, many jails and prisons do not offer MAT to individuals with opioid use disorder. This seems partly due to a scientifically unjustified preference for an abstinence-only treatment approach. The absence of MAT in prisons and jails results in poor outcomes for individuals and poses a public health threat to communities. Furthermore, it disproportionately harms poor communities and communities of color. Health care providers in prisons and jails have an ethical obligation to offer MAT to individuals with opioid use disorder to mitigate risk of infectious diseases, opioid overdose and health disparities associated with incarceration.


Asunto(s)
Accesibilidad a los Servicios de Salud/ética , Tratamiento de Sustitución de Opiáceos , Trastornos Relacionados con Opioides/rehabilitación , Relaciones Médico-Paciente , Prisioneros , Necesidades y Demandas de Servicios de Salud , Humanos , Trastornos Relacionados con Opioides/epidemiología , Síndrome de Abstinencia a Sustancias/complicaciones , Estados Unidos
6.
Proc Natl Acad Sci U S A ; 104(20): 8352-6, 2007 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-17449638

RESUMEN

Amphibians stand at the forefront of a global biodiversity crisis. More than one-third of amphibian species are globally threatened, and over 120 species have likely suffered global extinction since 1980. Most alarmingly, many rapid declines and extinctions are occurring in pristine sites lacking obvious adverse effects of human activities. The causes of these "enigmatic" declines remain highly contested. Still, lack of long-term data on amphibian populations severely limits our understanding of the distribution of amphibian declines, and therefore the ultimate causes of these declines. Here, we identify a systematic community-wide decline in populations of terrestrial amphibians at La Selva Biological Station, a protected old-growth lowland rainforest in lower Central America. We use data collected over 35 years to show that population density of all species of terrestrial amphibians has declined by approximately 75% since 1970, and we show identical trends for all species of common reptiles. The trends we identify are neither consistent with recent emergence of chytridiomycosis nor the climate-linked epidemic hypothesis, two leading putative causes of enigmatic amphibian declines. Instead, our data suggest that declines are due to climate-driven reductions in the quantity of standing leaf litter, a critical microhabitat for amphibians and reptiles in this assemblage. Our results raise further concerns about the global persistence of amphibian populations by identifying widespread declines in species and habitats that are not currently recognized as susceptible to such risks.


Asunto(s)
Anfibios/fisiología , Extinción Biológica , Reptiles/fisiología , Animales , Clima , Costa Rica , Hojas de la Planta
7.
Conserv Biol ; 20(6): 1750-60, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17181810

RESUMEN

To better understand responses of reptiles and amphibians to forest fragmentation in the lowland Neotropics, we examined community and population structure of frogs and lizards in the fragmented landscape surrounding La Selva Biological Station in the Sarapiquí region of northeastern Costa Rica. We used diurnal quadrats and nocturnal transects to sample frogs and lizards in nine forest fragments (1-7 ha each) and La Selva (1100 ha). Species richness in all fragments combined was 85% of that found in La Selva with comparable sampling effort. Richness varied from 10 to 24 species among forest fragments, compared with 36 species at La Selva. Lizard density was higher and frog density was lower in forest fragments than in La Selva. Community composition varied among sites and by fragment size class, and species occurrence was nested with respect to fragment area. Isolation and habitat variables did not significantly affect species richness, composition, or nestedness. We classified 34% of species as fragmentation sensitive because they were absent or occurred at low densities in fragments. Nevertheless, the relatively high diversity observed in the entire set of fragments indicates that preserving a network of small forest patches may be of considerable conservation value to the amphibians and reptiles of this region.


Asunto(s)
Anuros/crecimiento & desarrollo , Biodiversidad , Conservación de los Recursos Naturales , Lagartos/crecimiento & desarrollo , Árboles , Animales , Costa Rica , Ecosistema , Femenino , Masculino , Densidad de Población , Dinámica Poblacional , Ranidae/crecimiento & desarrollo
8.
J Vector Ecol ; 29(1): 62-5, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15266741

RESUMEN

The northern fowl mite, Ornithonyssus sylviarum Canestrini and Fanzago, is a common ectoparasite of wild birds. Despite its ability to transmit eastern equine encephalitis (EEE) virus under laboratory conditions and potential for involvement in the natural EEE virus cycle, we know little about its abundance or temporal distribution in nature. From June to August 2000, we studied the abundance of O. sylviarum in the nests of gray catbirds (Dumatella carolinensis), a reservoir host for EEE virus, at Killbuck Marsh Wildlife Area (KMWA), a known EEE virus focus in Wayne County, Ohio. A total of 7,883 O. sylviarum, including 1,910 adults and 5,973 protonymphs, were recovered from 23 of 26 gray catbird nests collected during various phases of the nesting cycle. We found no association between mite abundance and number of catbird nestlings in successful nests. However, mite abundance increased significantly with date of nest collection and peaked in late July when transmission of EEE virus is likely to occur at KMWA. We therefore suggest that O. sylviarum may contribute to the transmission of EEE virus among gray catbirds at KMWA.


Asunto(s)
Enfermedades de las Aves/transmisión , Encefalomielitis Equina Oriental/transmisión , Ácaros , Pájaros Cantores/parasitología , Animales , Animales Recién Nacidos , Monitoreo del Ambiente , Ohio , Dinámica Poblacional , Estaciones del Año
9.
J Vector Ecol ; 29(1): 73-8, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15266743

RESUMEN

From June through August in 1999 and 2000, we conducted an avian serosurvey for eastern equine encephalomyelitis (EEE) virus at Killbuck Marsh Wildlife Area (KMWA), a focus of infection in central Ohio. We also monitored abundance of the suspected enzootic vector, Culiseta melanura Coquillett, in Brown's Lake Bog, an adjacent wetland. Of the 363 birds of 30 species sampled in 1999, three gray catbirds (Dumetella carolinensis) were positive for antibodies to EEE virus, representing 1.2% of the avian samples and 4.2% of the gray catbirds sampled. Given these results and the abundance of gray catbirds at this site, this species became the focus of our sampling efforts in 2000. However, none of the 109 samples collected from 98 catbirds in 2000 was positive for the virus. Culiseta melanura adults were monitored using resting boxes and CDC CO, light traps at both sites in 1999. Culiseta melanura larvae were monitored in 1999 and 2000 at Brown's Lake Bog, the closest known source of this species, approximately 5km from the avian serosurvey site. We suggest that dry conditions reduced the breeding and abundance of Cs. melanura in 2000 and possibly the transmission of EEE virus at KMWA.


Asunto(s)
Culicidae/virología , Virus de la Encefalitis Equina del Este/patogenicidad , Encefalomielitis Equina Oriental/transmisión , Pájaros Cantores/virología , Animales , Anticuerpos Antivirales/análisis , Clima , Recolección de Datos , Ambiente , Ensayo de Inmunoadsorción Enzimática , Insectos Vectores , Larva/crecimiento & desarrollo , Larva/virología , Ohio , Dinámica Poblacional , Estudios Seroepidemiológicos
10.
J Wildl Dis ; 39(3): 582-7, 2003 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-14567219

RESUMEN

We determined the prevalence and intensity of blood parasites in breeding gray catbirds (Dumatella carolinensis) at Killbuck Wildlife Area in Wayne and Holmes Counties, Ohio (USA) from June through August 2000. Of 98 catbirds sampled, 40 (40.8%) had detectable infections of Haemoproteus beckeri. Overall prevalence of H. beckeri in this population is high relative to that reported in earlier blood parasite surveys of both breeding and migrant catbirds. Mean intensity of H. beckeri infection did not vary significantly between young and old birds or among sampling periods. We found no effect of age on prevalence or intensity of H. beckeri infection. Older birds were not more likely to be infected than younger birds, despite longer exposure to arthropod vectors. Prevalence varied significantly with season and was highest in June and lowest in August. This pattern also was observed in older birds sampled repeatedly. This seasonal variation may reflect both newly acquired infections and chronic infections relapsing in response to hormonal changes associated with breeding. Evidence of transmission was observed in the single hatching year bird that lacked detectable infection in early summer, but demonstrated a very high intensity infection in late summer. These observations provide supportive evidence that hematozoa infections are acquired on the breeding grounds during the first year of life and relapse during the breeding season in subsequent years.


Asunto(s)
Enfermedades de las Aves/epidemiología , Haemosporida/aislamiento & purificación , Parasitemia/veterinaria , Infecciones Protozoarias en Animales/epidemiología , Factores de Edad , Animales , Animales Salvajes , Enfermedades de las Aves/parasitología , Aves , Femenino , Masculino , Ohio/epidemiología , Parasitemia/epidemiología , Parasitemia/parasitología , Prevalencia , Infecciones Protozoarias en Animales/parasitología , Estaciones del Año
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