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1.
HIV Med ; 19(4): 299-307, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29368456

RESUMEN

OBJECTIVES: The European Association for the Study of the Liver (EASL) treatment recommendations for hepatitis C no longer discriminate between HIV/hepatitis C virus (HCV)-coinfected and HCV-monoinfected patients. However, recent data from Spain are questioning these recommendations on the basis of the findings of higher relapse rates and lower cure rates in HIV/HCV-infected subjects. The aim of our study was to compare HCV cure rates in monoinfected and coinfected patients from Germany. METHODS: Data acquired from the Deutsches Hepatitis C-Registry were analysed. A total of 5657 HCV-monoinfected subjects and 488 HIV/HCV-coinfected patients were included in the study. Rates of sustained virological response 12 weeks after the scheduled end of therapy (SVR12) were collected in both subgroups and in cirrhotic and noncirrhotic patients. RESULTS: HIV/HCV-coinfected patients were more frequently male (84.6% vs. 56.4%, respectively; P < 0.001) and younger than HCV-monoinfected subjects (46.5 ± 9 vs. 53.8 ± 12.5 years, respectively; P < 0.001). The CD4 blood cell count was > 350 cells/µL in 63.1% of HIV-positive subjects and 88.7% were on antiretroviral therapy. SVR12 rates were 90.3% (5111 of 5657) in our HCV-monoinfected cohort and 91.2% (445 of 488) in our coinfected patients. Liver cirrhosis was confirmed in 1667 of 5657 (29.5%) monoinfected patients and 84 of 488 (17.2%; P < 0.001) coinfected patients. SVR12 rates did not differ between HCV-monoinfected and HIV/HCV-coinfected patients with liver cirrhosis (87.8% vs. 89.3%, respectively; P = 0.864). A treatment duration of 8 weeks did not reduce the percentage of patients with SVR12 in either subgroup (93.7% in both groups). CONCLUSIONS: We found high SVR12 rates in monoinfected as well as coinfected individuals. No differences were detected between the two subgroups regardless of whether there was accompanying liver cirrhosis or a shortened treatment duration.


Asunto(s)
Antivirales/administración & dosificación , Infecciones por VIH/epidemiología , Hepatitis C Crónica/tratamiento farmacológico , Cirrosis Hepática/epidemiología , Adulto , Factores de Edad , Anciano , Antivirales/farmacología , Recuento de Linfocito CD4 , Estudios de Cohortes , Esquema de Medicación , Femenino , Alemania , Infecciones por VIH/virología , Hepatitis C Crónica/virología , Humanos , Masculino , Persona de Mediana Edad , Sistema de Registros , Respuesta Virológica Sostenida , Resultado del Tratamiento
2.
Acta Psychiatr Scand ; 136(6): 534-548, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28891192

RESUMEN

OBJECTIVE: Light therapy has become an increasingly popular treatment for depression and a range of other neuropsychiatric conditions. Yet, concerns have been raised about the ocular safety of light therapy. METHOD: We conducted the first systematic review into the ocular safety of light therapy. A PubMed search on January 4, 2017, identified 6708 articles, of which 161 were full-text reviewed. In total, 43 articles reporting on ocular complaints and ocular examinations were included in the analyses. RESULTS: Ocular complaints, including ocular discomfort and vision problems, were reported in about 0% to 45% of the participants of studies involving light therapy. Based on individual studies, no evident relationship between the occurrence of complaints and light therapy dose was found. There was no evidence for ocular damage due to light therapy, with the exception of one case report that documented the development of a maculopathy in a person treated with the photosensitizing antidepressant clomipramine. CONCLUSION: Results suggest that light therapy is safe for the eyes in physically healthy, unmedicated persons. The ocular safety of light therapy in persons with preexisting ocular abnormalities or increased photosensitivity warrants further study. However, theoretical considerations do not substantiate stringent ocular safety-related contraindications for light therapy.


Asunto(s)
Oftalmopatías/etiología , Fototerapia/efectos adversos , Humanos
3.
BMC Health Serv Res ; 16(a): 374, 2016 08 11.
Artículo en Inglés | MEDLINE | ID: mdl-27515233

RESUMEN

BACKGROUND: HIV testing, diagnosis and treatment programs have expanded globally, particularly in resource-limited settings. Diagnosis must be followed by determination of treatment eligibility and referral to care prior to initiation of antiretroviral treatment (ART). However, barriers and delays along these early steps in the treatment cascade may impede successful ART initiation. New strategies are needed to facilitate the treatment cascade. We evaluated the role of on site CD4+ T cell count phlebotomy services by nurses in facilitating pre-ART care in a community-based voluntary counseling and testing program (CBVCT) in rural South Africa. METHODS: We retrospectively evaluated CBVCT services during five continuous time periods over three years: three periods when a nurse was present on site, and two periods when the nurse was absent. When a nurse was present, CD4 count phlebotomy was performed immediately after HIV testing to determine ART eligibility. When a nurse was absent, patients were referred to their local primary care clinic for CD4 testing. For each period, we determined the proportion of HIV-positive community members who completed CD4 testing, received notification of CD4 count results, as well as the time to test completion and result notification. RESULTS: Between 2010 and 2013, 7213 individuals accessed CBVCT services; of these, 620 (8.6 %) individuals were HIV-positive, 205 (33.1 %) were eligible for ART according to South African national CD4 count criteria, and 78 (38.0 % of those eligible) initiated ART. During the periods when a professional nurse was available to provide CD4 phlebotomy services, HIV-positive clients were significantly more likely to complete CD4 testing than during periods when these services were not available (85.5 % vs. 37.3 %, p < 0.001). Additionally, when nurses were present, individuals were significantly more likely to be notified of CD4 results (60.6 % vs. 26.7 %, p <0.001). The time from HIV screening to CD4 test completion was also significantly shorter during nurse presence than nurse absence (median 8 days (IQR 4-19) vs. 35 days (IQR 15-131), p < 0.001). CONCLUSIONS: These findings indicate that in addition to CBVCT, availability of on site CD4 phlebotomy may reduce loss along the pre-ART care cascade and facilitate timely entry into HIV care.


Asunto(s)
Atención Ambulatoria/organización & administración , Recuento de Linfocito CD4/métodos , Servicios de Salud Comunitaria/organización & administración , Infecciones por VIH/inmunología , Enfermeras y Enfermeros/organización & administración , Adulto , Consejo , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/enfermería , Accesibilidad a los Servicios de Salud , Humanos , Masculino , Sistemas de Atención de Punto , Derivación y Consulta , Estudios Retrospectivos , Población Rural , Sudáfrica/epidemiología
4.
BMC Ophthalmol ; 15: 71, 2015 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-26149170

RESUMEN

BACKGROUND: The effectiveness of ranibizumab in the treatment of diabetic macular edema has been proven with large clinical trials. For bevacizumab only two clinical trials have been published and a head-to-head comparison is lacking to date. However, if proved non-inferior to ranibizumab, use of the off-label bevacizumab could reduce costs enormously without a loss in visual acuity. A cost-effectiveness study has been designed to substantiate this hypothesis. AIM: To compare the effectiveness and costs of 1.25 mg of bevacizumab to 0.5 mg ranibizumab given as monthly intravitreal injections during 6 months in patients with diabetic macular edema. It is hypothesized that bevacizumab is non-inferior to ranibizumab regarding its effectiveness. DESIGN: This is a randomized, controlled, double masked, clinical trial in 246 patients in seven academic trial centres in The Netherlands. OUTCOMES: The primary outcome measure is the change in best-corrected visual acuity (BCVA) in the study eye from baseline to month 6. Secondary outcomes are the proportions of patients with a gain or loss of 15 letters or more or a BCVA of 20/40 or more at 6 months, the change in leakage on fluorescein angiography and the change in foveal thickness by optical coherence tomography at 6 months, the number of adverse events in 6 months, and the costs per quality adjusted life-year of the two treatments.


Asunto(s)
Inhibidores de la Angiogénesis/economía , Bevacizumab/economía , Retinopatía Diabética/tratamiento farmacológico , Retinopatía Diabética/economía , Edema Macular/tratamiento farmacológico , Edema Macular/economía , Ranibizumab/economía , Adolescente , Adulto , Retinopatía Diabética/diagnóstico , Método Doble Ciego , Costos de los Medicamentos , Femenino , Angiografía con Fluoresceína , Humanos , Inyecciones Intravítreas , Edema Macular/diagnóstico , Masculino , Encuestas y Cuestionarios , Tomografía de Coherencia Óptica , Resultado del Tratamiento , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Agudeza Visual
5.
Diabetologia ; 56(5): 1148-54, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23460020

RESUMEN

AIMS/HYPOTHESIS: Proinsulin is possibly associated with cancer through activation of insulin receptor isoform A. We sought to investigate the associations between proinsulin and 20 year cancer mortality rates. METHODS: The study was performed within the Hoorn Study, a population-based study of glucose metabolism in individuals aged 50-75 years in the Dutch population. Fasting proinsulin levels were measured twice by a double-antibody radioimmunoassay. Participants were continuously followed to register mortality; causes of death were derived from medical records. Cox survival analyses were performed to assess the 20 year risk of death from cancer in relation to proinsulin. All analyses were adjusted for age and sex, with additional adjustments for traditional risk factors. The effect modification of glucose metabolism and sex was tested. RESULTS: Proinsulin levels were measured in 438 individuals (41% normal glucose tolerance, 35.7% impaired glucose metabolism, 23.3% type 2 diabetes). Of these participants, 53 died from cancer. After adjustment for age and sex, proinsulin >16.5 pmol/l (the upper tertile) was significantly associated with a twofold risk of cancer mortality (HR 2.01, 95% CI 1.16, 3.46) compared with individuals with lower proinsulin levels. Additional adjustment for glucose metabolism, BMI and smoking did not substantially change the results (HR 1.91, 95% CI 1.04, 3.52). No interaction with glucose metabolism or sex was observed. CONCLUSIONS/INTERPRETATION: Individuals with fasting proinsulin levels >16.5 pmol/l have a twofold risk of cancer mortality over a 20 year time span. These findings provide population-based evidence for the independent association between high proinsulin levels and cancer mortality rates.


Asunto(s)
Hiperinsulinismo/complicaciones , Neoplasias/mortalidad , Proinsulina/sangre , Anciano , Biomarcadores/sangre , Estudios de Cohortes , Diabetes Mellitus Tipo 2/complicaciones , Femenino , Estudios de Seguimiento , Intolerancia a la Glucosa/complicaciones , Humanos , Resistencia a la Insulina , Masculino , Registros Médicos , Persona de Mediana Edad , Mortalidad , Neoplasias/sangre , Neoplasias/complicaciones , Países Bajos/epidemiología , Sistema de Registros , Factores de Riesgo , Análisis de Supervivencia
6.
Int J Tuberc Lung Dis ; 27(3): 209-214, 2023 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-36855038

RESUMEN

BACKGROUND: TB preventative therapy (TPT) is crucial for reducing the burden of TB in endemic settings. We assessed stigma associated with TPT and the social groups from whom stigma was anticipated.METHODS: We conducted an anonymous cross-sectional survey of community-dwelling adults in rural South Africa. Descriptive statistics, exploratory factor analysis, χ² tests, Kruskal-Wallis tests, and Poisson regression were used to identify factors associated with TPT stigma.RESULTS: The mean age of the 104 participants was 35 years, 65% were female, and 26% had completed secondary school. The vast majority perceived stigma associated with TPT (71%; mean score 1.7, SD ± 1.4). Factor analysis identified a two-factor solution that explained 61.9% of the variance. Being single (P < 0.001), previously screened for TB (P = 0.04), worried about being infected by TB (P = 0.006), and interested in taking TPT (P = 0.01) were associated with higher perceived stigma scores. TPT stigma was perceived among 8%, 16%, and 66% of their family, friends, and other community members, respectively.CONCLUSION: The prevalence of TPT-related stigma in a rural South African community was high. Community members anticipated less stigma from family members compared to other social groups. Global expansion and implementation of TPT will require novel interventions, such as engaging patients´ families to support uptake and promote adherence.


Asunto(s)
Profilaxis Antibiótica , Antituberculosos , Estigma Social , Tuberculosis , Adulto , Femenino , Humanos , Masculino , Estudios Transversales , Análisis Factorial , Familia , Sudáfrica , Población Rural , Tuberculosis/prevención & control , Antituberculosos/uso terapéutico
7.
Eur J Med Genet ; 66(1): 104674, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36470558

RESUMEN

Retinoblastoma is the most common paediatric neoplasm of the retina, and one of the earliest model of cancer genetics since the identification of the master tumour suppressor gene RB1. Tumorigenesis has been shown to be driven by pathogenic variants of the RB1 locus, but also genomic and epigenomic alterations outside the locus. The increasing knowledge on this "mutational landscape" is used in current practice for precise genetic testing and counselling. Novel methods provide access to pre-therapeutic tumour DNA, by isolating cell-free DNA from aqueous humour or plasma. This is expected to facilitate assessment of the constitutional status of RB1, to provide an early risk stratification using molecular prognostic markers, to follow the response to the treatment in longitudinal studies, and to predict the response to targeted therapies. The aim of this review is to show how molecular genetics of retinoblastoma drives diagnosis, treatment, monitoring of the disease and surveillance of the patients and relatives. We first recap the current knowledge on retinoblastoma genetics and its use in every-day practice. We then focus on retinoblastoma subgrouping at the era of molecular biology, and the expected input of cell-free DNA in the field.


Asunto(s)
Neoplasias de la Retina , Retinoblastoma , Niño , Humanos , Retinoblastoma/genética , Genes de Retinoblastoma , Mutación , Neoplasias de la Retina/genética , Neoplasias de la Retina/patología , Atención al Paciente , Análisis Mutacional de ADN/métodos
8.
Clin Genet ; 81(3): 216-23, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21954974

RESUMEN

To investigate reproductive behavior of individuals at increased risk of having a child with retinoblastoma (Rb), we conducted a cross-sectional questionnaire survey among 118 counselees visiting the Clinical Genetics Department of the National Rb Center in the Netherlands. The recurrence risk for counselees ranged from <1% to 50%. The response rate was 69%. Of 43 respondents considering having children after becoming aware of their increased risk, Rb influenced reproductive behavior for 25 (58%), of whom 14 had a recurrence risk <3%. Twenty of these 25 decided against having more children and 5 used prenatal diagnosis. Eighteen of the 43 respondents did not use any of the alternative reproductive options and had children (or more children), although half indicated having had doubts about their decisions. Multiple logistic regression showed that only perceived risk (p = 0.003) was significantly associated with Rb influencing reproductive behavior. Of 17 respondents planning children (or more children), 11 (65%) considered using one of the alternative reproductive options. We conclude that reproductive behavior is greatly influenced by Rb and that perceived risk, not objective risk, is the most important factor of influence. It is important to offer individuals at increased risk continued access to genetic counseling, even when this risk is small.


Asunto(s)
Predisposición Genética a la Enfermedad/psicología , Conducta Reproductiva , Retinoblastoma/genética , Adulto , Estudios Transversales , Femenino , Asesoramiento Genético , Humanos , Modelos Logísticos , Masculino , Países Bajos/epidemiología , Diagnóstico Prenatal , Retinoblastoma/diagnóstico , Retinoblastoma/epidemiología , Factores de Riesgo
9.
Eur J Med Res ; 16(5): 237-42, 2011 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-21719398

RESUMEN

OBJECTIVES: Outbreaks of sexually transmitted acute HCV infection have been described recently in several cities in the western world. The epidemic affects mainly MSM who are coinfected with HIV and is supposably linked to certain sexual risk practices. Here, we compared our findings with current knowledge and recommendations. METHODS: HIV-positive patients with the diagnosis of acute HCV infection were included in the retrospective analysis. The patients came from outpatient infectious disease centers in northern German cities. We looked at markers of HIV and HCV infection and compared patients who received treatment and those who did not. Treated patients were followed up to 72 weeks. RESULTS: Three hundred nineteen HIV-positive patients with the diagnosis of acute hepatitis C between 2001 and 2008 and were included in the analysis. All patients were male, 315 (99%) patients were of caucasian origin, 296 (93%) declared homosexual contacts as a risk factor for HCV infection, intravenous drug use was declared in 3 (1%) cases. Median age at HCV diagnosis was 40 years (range 20-69 years). Median HCV viral load was 1.2 x 106 IU/mL, 222 patients (70%) had HCV genotype 1, 59 (18%) genotype 4. The median time of HIV infection was 5.5 years (range 0 to 22.4 years). Median HIV viral load was 110 copies/mL (range 25 to 10x106 copies/mL). The median CD 4 count was 461 cells/mm3 (range 55-1331 cells/mm3). Two hundred and fourty-six patients (77%) received anti-HCV treatment, and 175 (55%) had completed therapy by the time of the analysis. Median treatment duration was 33 weeks (IQR 24.1-49.9). 93 of the 175 treated patients (53%) reached a sustained virological response (SVR). In the multivariate analysis, ART at diagnosis, HCV RNA drop at week 12, hemoglobin levels and higher platelets were associated with SVR. Treatment duration was significantly higher in the SVR group (40.6 weeks vs 26.6 weeks, p<0.0001). Seventy-three patients (23%) did not receive anti-HCV treatment. In 19 of the untreated patients (26%) the hepatitis C virus was cleared spontaneously. CONCLUSIONS: Our findings confirm that acute hepatitis C in HIV infected patients affects mainly MSM who acquire HCV sexually. Patients had a short duration of HIV infection and a stable immunological situation. In this real-life setting from urban regions in northern Germany, treatment rates appear to be high and effective.


Asunto(s)
Infecciones por VIH/tratamiento farmacológico , Hepatitis C/tratamiento farmacológico , Enfermedad Aguda , Adulto , Anciano , Recuento de Linfocito CD4 , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/virología , Hepatitis C/complicaciones , Hepatitis C/virología , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
10.
PLoS One ; 16(1): e0244877, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33411722

RESUMEN

BACKGROUND: Digital devices and wearables allow for the measurement of a wide range of health-related parameters in a non-invasive manner, which may be particularly valuable in pediatrics. Incorporation of such parameters in clinical trials or care as digital endpoint could reduce the burden for children and their parents but requires clinical validation in the target population. This study aims to determine the tolerability, repeatability, and reference values of novel digital endpoints in healthy children. METHODS: Apparently healthy children (n = 175, 46% male) aged 2-16 were included. Subjects were monitored for 21 days using a home-monitoring platform with several devices (smartwatch, spirometer, thermometer, blood pressure monitor, scales). Endpoints were analyzed with a mixed effects model, assessing variables that explained within- and between-subject variability. Endpoints based on physical activity, heart rate, and sleep-related parameters were included in the analysis. For physical-activity-related endpoints, a sample size needed to detect a 15% increase was calculated. FINDINGS: Median compliance was 94%. Variability in each physical activity-related candidate endpoint was explained by age, sex, watch wear time, rain duration per day, average ambient temperature, and population density of the city of residence. Estimated sample sizes for candidate endpoints ranged from 33-110 per group. Daytime heart rate, nocturnal heart rate and sleep duration decreased as a function of age and were comparable to reference values published in the literature. CONCLUSIONS: Wearable- and portable devices are tolerable for pediatric subjects. The raw data, models and reference values presented here can be used to guide further validation and, in the future, clinical trial designs involving the included measures.


Asunto(s)
Monitoreo Fisiológico/instrumentación , Monitoreo Fisiológico/métodos , Adolescente , Niño , Preescolar , Ejercicio Físico/fisiología , Femenino , Frecuencia Cardíaca/fisiología , Humanos , Masculino , Cooperación del Paciente , Valores de Referencia , Reproducibilidad de los Resultados , Sueño/fisiología , Dispositivos Electrónicos Vestibles/tendencias
11.
J Exp Med ; 168(2): 507-25, 1988 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-2457646

RESUMEN

Methods published for the purification of P.II proteins from Neisseria gonorrhoea have been modified to allow the purification of class 5 proteins from Neisseria meningitidis serogroup A bacteria. The five class 5 protein electrophoretic variants detected within an epidemic in the Gambia (a, b, c, d, and e) and three other variants (f, g, and h) found within other isolates of the same clone in West Africa have been purified with yields of 6-28 mg. The NH2-terminal amino acid sequence for variant c differs from those of the other class 5 proteins, whereas the latter are very similar to the sequence predicted for two class 5 proteins from DNA analyses of serogroup C meningococci and determined for 8 P.II proteins from gonococci. Numerous other regulatory, chemical, and serological differences were found between the c protein and the other class 5 proteins such that we recommend that the class 5 proteins be subdivided into two subclasses. mAbs have been isolated that distinguish between these two protein subclasses and Western blotting with these antibodies enabled us to conclude that both protein subclasses were found in bacteria isolated from different epidemics and pandemics of the last 50 yr.


Asunto(s)
Proteínas de la Membrana Bacteriana Externa/aislamiento & purificación , Neisseria meningitidis/clasificación , Secuencia de Aminoácidos , Proteínas de la Membrana Bacteriana Externa/genética , Proteínas de la Membrana Bacteriana Externa/inmunología , Cromatografía en Gel , Electroforesis en Gel de Poliacrilamida , Epítopos/análisis , Variación Genética , Datos de Secuencia Molecular , Peso Molecular , Neisseria meningitidis/genética , Serotipificación
12.
Clin Genet ; 78(4): 334-41, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20618349

RESUMEN

Little is known about the reproductive decision-making process of couples with an increased risk of having a child with retinoblastoma (Rb). A qualitative study was conducted to explore the impact of prospective risk on reproductive decisions, factors influencing these decisions, and the needs of couples with regard to reproductive counselling. Fourteen couples of childbearing age who received genetic counselling between 2002 and 2006 participated in semi-structured interviews in 2008. The risk of having a child with Rb ranged from less than 1% to 50%. In most cases, the diagnosis of Rb influenced subsequent family planning. Prenatal diagnosis was used by two couples, while others refrained from having more children. Reproductive decisions were influenced by the burden of the disease for the patient and family members, the impact of ophthalmological screening under anaesthesia, and couples' perceived risk, which did not always relate to their actual risk. Reproductive choices with regard to the number of children wanted changed over time. Our findings indicate topics to be discussed during genetic counselling of couples at increased risk for a child with Rb. We suggest continued access to genetic counselling also after the initial diagnosis and treatment.


Asunto(s)
Toma de Decisiones , Predisposición Genética a la Enfermedad , Conducta Reproductiva , Neoplasias de la Retina/genética , Retinoblastoma/genética , Familia , Servicios de Planificación Familiar , Femenino , Asesoramiento Genético , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Embarazo , Diagnóstico Prenatal , Neoplasias de la Retina/diagnóstico , Retinoblastoma/diagnóstico , Riesgo
13.
Hum Reprod ; 24(12): 3220-4, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19783550

RESUMEN

BACKGROUND: In 2003, we reported an increased risk of retinoblastoma in children conceived by IVF between 1995 and 2002. However, population-based studies among children conceived by IVF did not find an elevated risk of retinoblastoma. METHODS: From nationwide estimates of numbers of live births conceived by IVF (n = 40 330), we estimated the expected numbers of patients with retinoblastoma conceived by IVF in the period 1995-2007. The observed number of retinoblastoma diagnoses in children conceived by IVF was obtained by questionnaires sent to the parents of children with retinoblastoma diagnosed between 1995 and 2005. For non-responders and patients diagnosed after 2005, information was available through the medical files, in which information on fertility treatment has been routinely recorded since 2000. The relative risk (RR) of retinoblastoma among children conceived by IVF was calculated for the total study period (1995-2007) and for the expanded study period (2002-2007). RESULTS: Of all eligible patients with retinoblastoma (n = 162) diagnosed in the period 1995-2007, seven were conceived by IVF. In the total study period (1995-2007) the risk was significantly elevated [RR = 2.54, 95% confidence interval (CI) = 1.02-5.23]. In the expanded study period (2002-2007), no significantly elevated risk (RR = 1.29, 95% CI = 0.16-4.66) was found. CONCLUSIONS: We found a significantly increased risk of retinoblastoma in children conceived by IVF in the total study period 1995-2007. However, this increased risk was mostly based on the much stronger risk increase observed previously, for 1995-2002. Caution and awareness on the one hand and avoiding unnecessary worries on the other hand are important at this stage of our knowledge.


Asunto(s)
Fertilización In Vitro/efectos adversos , Neoplasias de la Retina/epidemiología , Retinoblastoma/epidemiología , Femenino , Fertilización In Vitro/tendencias , Genes de Retinoblastoma , Pruebas Genéticas , Humanos , Incidencia , Masculino , Países Bajos/epidemiología , Sistema de Registros , Neoplasias de la Retina/genética , Retinoblastoma/genética , Riesgo , Estadística como Asunto , Encuestas y Cuestionarios
14.
Psychooncology ; 18(12): 1281-9, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19222049

RESUMEN

OBJECTIVE: To assess coping strategies of long-term retinoblastoma (RB) survivors and explore determinants of behavioural functioning, including medical, socio-demographic and coping variables. METHODS: This population-based cross-sectional study included 117 RB survivors (12-35 years), registered in the Dutch national RB register. Survivors were asked to fill in coping, social support and behavioural questionnaires, and situational characteristics were obtained from medical archives and from an interview. Prevalence rates of coping strategies were computed based on self-reports. One-sample t-tests were applied to analyse differences in the use of coping strategies compared with healthy reference samples. Multiple regression analyses were performed to identify various determinants for behavioural problems within the RB sample. RESULTS: RB survivors differed from their healthy reference group in one coping style, i.e. they showed significantly less emotion-oriented coping behaviour. Adolescents who came from a single-parent family and/or experienced lower social support and used more emotion-oriented coping reported more total problem behaviour. More internalizing problems were reported for adolescents who experienced less social support and less acceptance of the disease. For adults, more life events, emotion-oriented coping and lower social support explained more total problem behaviour, especially internalizing problems. CONCLUSION: RB survivors showed less emotion-oriented coping behaviour compared with the reference group. Behavioural problems are best determined by emotion-oriented coping, social support, life events other than RB and acceptance of the disease, and not by medical variables. Therefore, these variables should be taken into consideration during interventions for this group.


Asunto(s)
Adaptación Psicológica , Trastornos de Adaptación/psicología , Trastornos de la Conducta Infantil/psicología , Control Interno-Externo , Neoplasias de la Retina/psicología , Retinoblastoma/psicología , Ajuste Social , Sobrevivientes/psicología , Trastornos de Adaptación/diagnóstico , Adolescente , Adulto , Trastornos de la Conducta Infantil/diagnóstico , Estudios Transversales , Mecanismos de Defensa , Femenino , Humanos , Entrevista Psicológica , Acontecimientos que Cambian la Vida , Masculino , Inventario de Personalidad/estadística & datos numéricos , Solución de Problemas , Psicometría , Neoplasias de la Retina/terapia , Retinoblastoma/terapia , Padres Solteros/psicología , Apoyo Social , Adulto Joven
15.
Psychooncology ; 18(1): 87-95, 2009 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18613302

RESUMEN

OBJECTIVE: To assess behavioural problems in retinoblastoma (RB) survivors. METHODS: This population-based cross-sectional study included 148 RB survivors (8-35 years), registered in the Dutch national RB register. Survivors and parents were asked to fill in behavioural questionnaires. Prevalence rates were computed, based on both self-reports and proxy reports. One-sample T-tests were applied to analyse differences compared with healthy reference samples. Multiple regression analyses were performed to identify predictors for behavioural problems within the RB sample. RESULTS: Between-group differences varied across informants and across age groups. Parents reported significantly elevated total problem behaviour in 30% of their offspring (aged 8-17 years); this against 9% in adolescents (12-17 years) and 12% in adults (18-35 years) based on self-report. Parental reports showed significantly elevated rates of (1) internalising problems in boys and (2) somatic complaints in both girls and boys. Self-reports indicate significantly lowered levels of (1) externalising problems in adolescent and adult women and (2) thought problems in female adolescents and in adult men. Especially survivors who suffered hereditary RB, who had undergone more intensive treatment, and who came from a single-parent family were identified to be at most behavioural risk. CONCLUSION: Perception of severity and the nature of behavioural problems seem to differ between beholder, and to vary between age groups, if not between life stages. Health professionals should be aware that especially those who are confronted with hereditary RB and who subsequently undergo intensive treatment, and who grow up in broken families, run the risk of developing behavioural difficulties.


Asunto(s)
Trastornos de la Conducta Infantil/epidemiología , Neoplasias de la Retina/rehabilitación , Retinoblastoma/rehabilitación , Trastorno de la Conducta Social/epidemiología , Sobrevivientes/psicología , Adolescente , Adulto , Distribución por Edad , Estudios de Casos y Controles , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Análisis Multivariante , Países Bajos/epidemiología , Prevalencia , Análisis de Regresión , Neoplasias de la Retina/psicología , Retinoblastoma/psicología , Factores de Riesgo , Distribución por Sexo
16.
Eur J Med Res ; 14(8): 323-31, 2009 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-19666392

RESUMEN

OBJECTIVE: In this paper, we describe the main objectives, the study design and the onset of the patient cohort of the German Competence Network for HIV/AIDS (KompNet) (www.kompetenznetz-hiv.de). Furthermore, we depict sociodemographic and clinical baseline characteristics and an estimation of the coverage and representativity as to the composition of persons living with HIV/AIDS (PLWHA) in Germany. METHODS: The KompNet cohort is an open, retrospective and prospective, multicenter, disease-specific and nationwide cohort study that started gathering data in June 2004. Semi-annually, follow up visits of the patients are documented, covering clinical and sociodemographic data. At enrolment and three years afterwards, an EDTA-sample is taken; a serum-sample is taken at every follow up visit. RESULTS: As of 14.9.2008, a total of 15,541 patients were enrolled by 44 documenting sites. In September 2007, the cohort size was reduced to 10 outpatient clinics and fifteen private practitioners, covering a total of 9,410 patients. The documentation of these patients comprises 24,117 years of follow up-time since enrolment (mean: 2.6 years), 62,862 person years inclusive data documented retrospectively on course of HIV-infection and combined antiretroviral therapy (cART, mean: 6.7 years). 1,008 patients (10.7%) were lost to follow up and 175 (1.9%) died since enrolment. 84.9% of patients were men. Main risks of transmission were sex between men (MSM: 62.9%), heterosexual contacts (18.4%), intravenous drug use (IVDU: 7.0%) and origin from a high prevalence country (HPL: 5.2%). Mean age was 45 years. CONCLUSION: The KompNet cohort covers about a quarter of all patients being under treatment in Germany. The composition of the cohort represents well the most important risks of transmission in Germany. The cohort contains a high proportion of patients being older than 49 years (28.1%). On basis of its comprehensive database and its biomaterials banks, the KompNet cohort serves as an important instrument to monitor and analyse the effects of combined antiretroviral therapy (cART) in Germany, interdigidating basis, clinical and psychosocial research in view to translational research.


Asunto(s)
Infecciones por VIH/epidemiología , VIH-1/patogenicidad , Adulto , Antivirales/uso terapéutico , Estudios de Cohortes , Redes Comunitarias/organización & administración , Femenino , Alemania/epidemiología , Infecciones por VIH/terapia , Infecciones por VIH/transmisión , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Estudios Retrospectivos , Adulto Joven
17.
Z Gerontol Geriatr ; 42(4): 328-35, 2009 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-19618229

RESUMEN

OBJECTIVES: Patients with dysphagia whose food intake is inadequate and who may compromise their airways need to receive nasogastric (NG) or gastrostomic (PEG) feeding. There are controversial discussions about the best time for intervention and the best method. Each approach has its advantages and disadvantages. Further research is required to assess the optimum method of treating patients with dysphagia. A retrospective study was undertaken to investigate the influence of functional dysphagia therapy with or without PEG feeding. METHODS: A total of 164 patients with dysphagia were investigated in a center for geriatric medicine (EGZB) within one year. Patients were divided into two groups: those with PEG (group 1, n=59) and those without (group 2, n=105). Both groups received functional training (training of oral motor skills and sensation, compensatory swallowing techniques) by speech-language therapists.Geriatric basic assessment was used. Speech-language therapists also evaluated language, speech and swallowing disorders pre- and post-training. Diet modification for oral intake altering viscosity and texture of foods and liquids was used. Additional data on the time between being admitted to hospital and receiving a PEG tube, the hospitalization period, the number of complications and mortality were collected. RESULTS: Both groups benefited from functional dysphagia therapy. The patients of group 2 showed a significant improvement in functional oral intake post-treatment. In most of the cases, diet modification improved from pasty consistency to firm meals. Swallowing abilities were much better than those of the more severely disabled patients of group 1. Group 1 still needed PEG feeding post-treatment but could also take in some food orally. However even the patients of group 1 showed a significant increase in functional oral intake.Group 2 also showed significantly stronger improvements in communication abilities and speech intelligibility after training compared to the severely disabled patients of group 1.In terms of the clinical outcome of group 1 it was demonstrated that the sooner a PEG was placed, the more significantly functional oral intake improved. The results of a multiple regression analysis showed a small but nevertheless significant association between an early supply of PEG and improvement of functional oral intake which had been achieved by functional dysphagia therapy.Significantly more complications and significantly higher mortality occurred in group 1 (PEG feeding) compared to group 2 (exclusively oral feeding). CONCLUSION: The treatment of dysphagia in the elderly requires a multi-professional setting, differentiated assessment and functional training of oral motor skills and sensation and swallowing techniques. Compared to patients with severe dysphagia, however, patients with mild to moderate dysphagia benefit most from functional training. The results reveal the importance of precise and early diagnosis of swallowing disorders in order to introduce PEG supply early in cases of persistent dysphagia.


Asunto(s)
Trastornos de Deglución/enfermería , Trastornos de Deglución/rehabilitación , Nutrición Enteral/métodos , Gastrostomía/métodos , Intubación Gastrointestinal/métodos , Recuperación de la Función , Anciano , Femenino , Humanos , Masculino , Resultado del Tratamiento
18.
Rheumatology (Oxford) ; 47(9): 1406-8, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18625659

RESUMEN

OBJECTIVE: The prognosis of large-vessel GCA (LV-GCA) has not yet been investigated. How does it compare to GCA without arm vasculitis (GCA controls)? METHODS: Charts of 53 LV-GCA patients and 53 GCA controls were reviewed following a predetermined protocol. Telephone interviews of patients or their primary care physicians were conducted. Forty LV-GCA patients underwent follow-up duplex ultrasound examinations of proximal arm arteries. RESULTS: The mean observation time was 50 (s.d. +/- 31) months. None of the LV-GCA patients developed ischaemic arm complications. In 30%, proximal arm artery wall swelling disappeared completely. It decreased in 53%. In 8% it remained unchanged, in 5% it increased and in 5% arteries occluded with collateral flow. After the start of treatment, anterior ischaemic optic neuropathy developed neither in LV-GCA patients nor in GCA controls, amaurosis fugax occurred in 4 and 6%, arterial hypertension in 53 and 66%, strokes in 9 and 9%, myocardial infarction in 2 and 2%, diabetes mellitus in 30 and 25%, osteoporosis in 38 and 23%, and osteoporotic fractures in 15 and 4%, respectively. Mean corticosteroid dose was 3.7 mg/day. Mean duration of therapy was 42 months. All differences were insignificant. Four LV-GCA patients developed vasculitic popliteal artery stenoses. CONCLUSIONS: The prognosis of LV-GCA is benign with regard to ischaemic complications. Proximal artery wall swelling decreases in most cases. Its course is similar to GCA without proximal arm arteritis.


Asunto(s)
Brazo/irrigación sanguínea , Arteritis de Células Gigantes/complicaciones , Arteritis de Células Gigantes/diagnóstico , Isquemia/etiología , Enfermedades Vasculares Periféricas/etiología , Anciano , Arteriopatías Oclusivas/diagnóstico por imagen , Arteriopatías Oclusivas/etiología , Femenino , Estudios de Seguimiento , Arteritis de Células Gigantes/diagnóstico por imagen , Humanos , Isquemia/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Enfermedades Vasculares Periféricas/diagnóstico por imagen , Pronóstico , Ultrasonografía Doppler en Color
19.
Int J Tuberc Lung Dis ; 22(7): 793-799, 2018 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-29914606

RESUMEN

SETTING: Community health screenings in KwaZulu-Natal Province, South Africa. OBJECTIVE: To study the synergism between diabetes mellitus (DM) and human immunodeficiency virus (HIV) infection in increasing the risk of tuberculosis (TB). DESIGN: In this cross-sectional study, we analyzed data from two community health projects, one at congregate settings, and one at household settings (n = 7708), in a rural resource-limited region where integrated communicable and non-communicable disease screening services were offered. Odds ratios (ORs) for demographic factors, socio-economic factors, DM status, and HIV positivity were calculated using multivariate analysis, and the statistical interaction between HIV and DM was tested. The primary outcome was the presence of TB symptoms. RESULTS: Among 7708 individuals, age >65 years (OR 1.72, 95%CI 1.47-2.02), HIV infection (OR 1.66, 95%CI 1.40-1.97) and DM (OR 1.36, 95%CI 1.11-1.67) were independently associated with increased odds of TB symptoms. Receiving monthly grants (OR 0.78, 95%CI 0.66-0.91), access to a toilet (OR 0.54, 95%CI 0.35-0.83), and access to solar or electric energy (OR 0.86, 95%CI 0.77-0.97) reduced the odds. There was evidence of significant interaction between DM and HIV on the multiplicative scale. CONCLUSION: DM and HIV synergistically increased the odds of TB symptoms according to these retrospective data. Future studies should prospectively evaluate synergism between HIV and DM in increasing the risk of active TB.


Asunto(s)
Diabetes Mellitus/epidemiología , Infecciones por VIH/epidemiología , Tamizaje Masivo/métodos , Tuberculosis/epidemiología , Adulto , Anciano , Servicios de Salud Comunitaria/métodos , Estudios Transversales , Femenino , Infecciones por VIH/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estudios Retrospectivos , Factores de Riesgo , Población Rural , Factores Socioeconómicos , Sudáfrica/epidemiología , Tuberculosis/etiología , Adulto Joven
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