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1.
Transpl Int ; 36: 11673, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37727381

RESUMEN

Universal Hepatitis E Virus (HEV) screening of deceased organ donors was implemented by the UK national organ procurement organisation in October 2017. Donor testing for HEV infection is done post-transplant; detection of HEV ribonucleic acid (RNA) in donor plasma is therefore not a contra-indication for organ donation, with the result being used to inform recipient management. Immediate post-transplant detection of donor HEV viraemia triggers notification to transplant centres. Follow up of liver and kidney recipients has shown that transmission through solid organs is very efficient, particularly through liver grafts, as expected; no other organ types were transplanted in this cohort. Although donors with higher plasma viral load (VL > 103 IU/mL) were invariably associated with recipient infection, transmission was also documented at lower VL levels. Knowledge of donor HEV status has led to identification of transmission of infection via solid organ grafts followed by close patient monitoring and informed clinical management decisions. The purpose of this strategy is to allow early detection of infection and recurrence and treatment to circumvent the risk of accelerated liver damage from chronic HEV infection due to undiagnosed, inadvertent donor-derived transmission of infection.


Asunto(s)
Virus de la Hepatitis E , Hepatitis E , Obtención de Tejidos y Órganos , Humanos , Donantes de Tejidos , Hepatitis E/diagnóstico , Reino Unido
2.
Transfus Med ; 33(5): 372-378, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37668150

RESUMEN

A more individualised donor selection policy was implemented in the UK in 2021, which replaced the previous 3-month deferral for men who have sex with men (MSM). Other blood services have a variety of policies in place to ensure the virological safety of blood components, ranging from an indefinite ban on MSM, to a defined period of exclusion, or to an individualised risk assessment that is not based on gender or sexual orientation. Justification of these policies should be based on scientific evidence including assessment of lengths of virological window periods, infectious disease epidemiology within donor populations and donation screening assay sensitivities. Developments in molecular technology and assays which can detect both antibodies and antigens in the very early stages of infection have significantly reduced the risk in most developed countries. However, the increasing usage of pre-exposure prophylaxis (PrEP) to prevent acquisition of HIV infection after possible high-risk sexual contact within the UK blood donor population has been recently noted. It has brought with it new diagnostic challenges within blood screening, notably possible non-detection of HIV RNA and serological markers following PrEP use despite potential infectivity. The use of other testing strategies such as detection of HIV DNA and screening for non-declared PrEP usage should be investigated further.


Asunto(s)
Donación de Sangre , Donantes de Sangre , Infecciones por VIH , VIH , Profilaxis Pre-Exposición , Administración de la Seguridad , Femenino , Humanos , Masculino , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Infecciones por VIH/virología , Homosexualidad Masculina , Medición de Riesgo , Minorías Sexuales y de Género , Reino Unido/epidemiología , Administración de la Seguridad/normas , Donación de Sangre/normas , VIH/aislamiento & purificación , Antivirales/administración & dosificación , Antivirales/uso terapéutico
3.
Euro Surveill ; 28(11)2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36927721

RESUMEN

An individualised blood donor selection policy was implemented in the United Kingdom from summer 2021. We have investigated the impact of this policy by comparing the extent of undeclared use of HIV pre-exposure or post-exposure prophylaxis (PrEP/PEP) before and after this change. The rate of PrEP usage in syphilis-positive male blood donors has not changed since individualised donor assessment was implemented but provides continuing evidence of undisclosed PrEP use which may be associated with current or past higher-risk sexual behaviours.


Asunto(s)
Infecciones por VIH , Profilaxis Pre-Exposición , Sífilis , Humanos , Masculino , Infecciones por VIH/prevención & control , Sífilis/epidemiología , Sífilis/prevención & control , Profilaxis Posexposición , Donantes de Sangre , Inglaterra , Homosexualidad Masculina
4.
Clin Infect Dis ; 62(5): 610-612, 2016 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-26611775

RESUMEN

Here, we describe the first use of thromboelastography (TEG) in the management of 2 cases of Ebola virus disease. Early in their illness, both patients had evidence of a consumptive coagulopathy. As this resolved, TEG demonstrated that both developed a marked hypercoagulable state, which was treated with low-molecular-weight heparin.


Asunto(s)
Trastornos de la Coagulación Sanguínea/diagnóstico , Fiebre Hemorrágica Ebola/complicaciones , Tromboelastografía , Adulto , Trastornos de la Coagulación Sanguínea/etiología , Femenino , Humanos
5.
J Sex Med ; 13(4): 711-9, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26897462

RESUMEN

INTRODUCTION: As referrals to gender identity clinics have increased dramatically over the last few years, no studies focusing on older trans people seeking treatment are available. AIMS: The aim of this study was to investigate the sociodemographic and clinical characteristics of older trans people attending a national service and to investigate the influence of cross-sex hormones (CHT) on psychopathology. METHODS: Individuals over the age of 50 years old referred to a national gender identity clinic during a 30-month period were invited to complete a battery of questionnaires to measure psychopathology and clinical characteristics. Individuals on cross-sex hormones prior to the assessment were compared with those not on treatment for different variables measuring psychopathology. MAIN OUTCOME MEASURES: Sociodemographic and clinical variables and measures of depression and anxiety (Hospital Anxiety and Depression Scale), self-esteem (Rosenberg Self-Esteem Scale), victimization (Experiences of Transphobia Scale), social support (Multidimensional Scale of Perceived Social Support), interpersonal functioning (Inventory of Interpersonal Problems), and nonsuicidal self-injury (Self-Injury Questionnaire). RESULTS: The sex ratio of trans females aged 50 years and older compared to trans males was 23.7:1. Trans males were removed for the analysis due to their small number (n = 3). Participants included 71 trans females over the age of 50, of whom the vast majority were white, employed or retired, and divorced and had children. Trans females on CHT who came out as trans and transitioned at an earlier age were significantly less anxious, reported higher levels of self-esteem, and presented with fewer socialization problems. When controlling for socialization problems, differences in levels of anxiety but not self-esteem remained. CONCLUSION: The use of cross-sex hormones prior to seeking treatment is widespread among older trans females and appears to be associated with psychological benefits. Existing barriers to access CHT for older trans people may need to be re-examined.


Asunto(s)
Ansiedad/diagnóstico , Depresión/diagnóstico , Hormonas Esteroides Gonadales/uso terapéutico , Terapia de Reemplazo de Hormonas/métodos , Relaciones Interpersonales , Conducta Autodestructiva/diagnóstico , Personas Transgénero , Anciano , Ansiedad/psicología , Depresión/psicología , Femenino , Humanos , Masculino , Inventario de Personalidad , Prevalencia , Factores de Riesgo , Autoimagen , Conducta Autodestructiva/psicología , Apoyo Social , Encuestas y Cuestionarios , Personas Transgénero/psicología
6.
Thorax ; 70(10): 930-8, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26179246

RESUMEN

BACKGROUND: Long-term antibiotic therapy is used to prevent exacerbations of COPD but there is uncertainty over whether this reduces airway bacteria. The optimum antibiotic choice remains unknown. We conducted an exploratory trial in stable patients with COPD comparing three antibiotic regimens against placebo. METHODS: This was a single-centre, single-blind, randomised placebo-controlled trial. Patients aged ≥45 years with COPD, FEV1<80% predicted and chronic productive cough were randomised to receive either moxifloxacin 400 mg daily for 5 days every 4 weeks, doxycycline 100 mg/day, azithromycin 250 mg 3 times a week or one placebo tablet daily for 13 weeks. The primary outcome was the change in total cultured bacterial load in sputum from baseline; secondary outcomes included bacterial load by 16S quantitative PCR (qPCR), sputum inflammation and antibiotic resistance. RESULTS: 99 patients were randomised; 86 completed follow-up, were able to expectorate sputum and were analysed. After adjustment, there was a non-significant reduction in bacterial load of 0.42 log10 cfu/mL (95% CI -0.08 to 0.91, p=0.10) with moxifloxacin, 0.11 (-0.33 to 0.55, p=0.62) with doxycycline and 0.08 (-0.38 to 0.54, p=0.73) with azithromycin from placebo, respectively. There were also no significant changes in bacterial load measured by 16S qPCR or in airway inflammation. More treatment-related adverse events occurred with moxifloxacin. Of note, mean inhibitory concentrations of cultured isolates increased by at least three times over placebo in all treatment arms. CONCLUSIONS: Total airway bacterial load did not decrease significantly after 3 months of antibiotic therapy. Large increases in antibiotic resistance were seen in all treatment groups and this has important implications for future studies. TRIAL REGISTRATION NUMBER: clinicaltrials.gov (NCT01398072).


Asunto(s)
Antibacterianos/uso terapéutico , Azitromicina/uso terapéutico , Doxiciclina/uso terapéutico , Fluoroquinolonas/uso terapéutico , Enfermedad Pulmonar Obstructiva Crónica/microbiología , Sistema Respiratorio/microbiología , Anciano , Carga Bacteriana , Femenino , Humanos , Masculino , Persona de Mediana Edad , Moxifloxacino , Evaluación de Resultado en la Atención de Salud , Enfermedad Pulmonar Obstructiva Crónica/complicaciones , Método Simple Ciego , Esputo/microbiología
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