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1.
Thorax ; 78(1): 24-31, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36342884

RESUMO

BACKGROUND: Current guidelines recommend that patients with obesity hypoventilation syndrome (OHS) are electively admitted for inpatient initiation of home non-invasive ventilation (NIV). We hypothesised that outpatient NIV setup would be more cost-effective. METHODS: Patients with stable OHS referred to six participating European centres for home NIV setup were recruited to an open-labelled clinical trial. Patients were randomised via web-based system using stratification to inpatient setup, with standard fixed level NIV and titrated during an attended overnight respiratory study or outpatient setup using an autotitrating NIV device and a set protocol, including home oximetry. The primary outcome was cost-effectiveness at 3 months with daytime carbon dioxide (PaCO2) as a non-inferiority safety outcome; non-inferiority margin 0.5 kPa. Data were analysed on an intention-to-treat basis. Health-related quality of life (HRQL) was measured using EQ-5D-5L (5 level EQ-5D tool) and costs were converted using purchasing power parities to £(GBP). RESULTS: Between May 2015 and March 2018, 82 patients were randomised. Age 59±14 years, body mass index 47±10 kg/m2 and PaCO2 6.8±0.6 kPa. Safety analysis demonstrated no difference in ∆PaCO2 (difference -0.27 kPa, 95% CI -0.70 to 0.17 kPa). Efficacy analysis showed similar total per-patient costs (inpatient £2962±£580, outpatient £3169±£525; difference £188.20, 95% CI -£61.61 to £438.01) and similar improvement in HRQL (EQ-5D-5L difference -0.006, 95% CI -0.05 to 0.04). There were no differences in secondary outcomes. DISCUSSION: There was no difference in medium-term cost-effectiveness, with similar clinical effectiveness, between outpatient and inpatient NIV setup. The home NIV setup strategy can be led by local resource demand and patient and clinician preference. TRIAL REGISTRATION NUMBERS: NCT02342899 and ISRCTN51420481.


Assuntos
Ventilação não Invasiva , Síndrome de Hipoventilação por Obesidade , Humanos , Pessoa de Meia-Idade , Idoso , Síndrome de Hipoventilação por Obesidade/terapia , Ventilação não Invasiva/métodos , Análise Custo-Benefício , Qualidade de Vida , Pacientes Ambulatoriais , Pacientes Internados
2.
Am J Transplant ; 21(3): 1012-1026, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33225626

RESUMO

The complement system plays a pivotal role in the pathogenesis of ischemia-reperfusion injury in solid organ transplantation. Mirococept is a potent membrane-localizing complement inhibitor that can be administered ex vivo to the donor kidney prior to transplantation. To evaluate the efficacy of Mirococept in reducing delayed graft function (DGF) in deceased donor renal transplantation, we undertook the efficacy of mirococept (APT070) for preventing ischaemia-reperfusion injury in the kidney allograft (EMPIRIKAL) trial (ISRCTN49958194). A dose range of 5-25 mg would be tested, starting with 10 mg in cohort 1. No significant difference between Mirococept at 10 mg and control was detected; hence the study was stopped to enable a further dose saturation study in a porcine kidney model. The optimal dose of Mirococept in pig kidney was 80 mg. This dose did not induce any additional histological damage compared to controls or after a subsequent 3 hours of normothermic machine perfusion. The amount of unbound Mirococept postperfusion was found to be within the systemic dose range considered safe in the Phase I trial. The ex vivo administration of Mirococept is a safe and feasible approach to treat DGF in deceased donor kidney transplantation. The porcine kidney study identified an optimal dose of 80 mg (equivalent to 120 mg in human kidney) that provides a basis for further clinical development.


Assuntos
Transplante de Rim , Traumatismo por Reperfusão , Animais , Inativadores do Complemento , Função Retardada do Enxerto/tratamento farmacológico , Função Retardada do Enxerto/prevenção & controle , Sobrevivência de Enxerto , Humanos , Rim , Transplante de Rim/efeitos adversos , Traumatismo por Reperfusão/tratamento farmacológico , Traumatismo por Reperfusão/prevenção & controle , Suínos , Doadores de Tecidos
3.
Stroke ; 51(8): 2435-2444, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32646337

RESUMO

BACKGROUND AND PURPOSE: With recent advances in secondary prevention management, stroke recurrence rates may have changed substantially. We aim to estimate risks and trends of stroke recurrence over the past 2 decades in a population-based cohort of patients with stroke. METHODS: Patients with a first-ever stroke between 1995 and 2018 in South London, United Kingdom (n=6052) were collected and analyzed. Rates of recurrent stroke with 95% CIs were stratified by 5-year period of index stroke and etiologic TOAST (Trial of ORG 10172 in Acute Stroke Treatment) subtype. Cumulative incidences were estimated and multivariate Cox models applied to examine associations of recurrence and recurrence-free survival. RESULTS: The rate of stroke recurrence at 5 years reduced from 18% (95% CI, 15%-21%) in those who had their stroke in 1995 to 1999 to 12% (10%-15%) in 2000 to 2005, and no improvement since. Recurrence-free survival has improved (35%, 1995-1999; 67%, 2010-2015). Risk of recurrence or death is lowest for small-vessel occlusion strokes and other ischemic causes (36% and 27% at 5 years, respectively). For cardioembolic and hemorrhagic index strokes around half of first recurrences are of the same type (54% and 51%, respectively). Over the whole study period a 54% increased risk of recurrence was observed among those who had atrial fibrillation before the index stroke (hazard ratio, 1.54 [1.09-2.17]). CONCLUSIONS: The rate of recurrence reduced until mid-2000s but has not changed over the last decade. The majority of cardioembolic or hemorrhagic strokes that have a recurrence are stroke of the same type indicating that the implementation of effective preventive strategies is still suboptimal in these stroke subtypes.


Assuntos
Vigilância da População , Prevenção Secundária/tendências , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Seguimentos , Humanos , Londres/epidemiologia , Masculino , Pessoa de Meia-Idade , Vigilância da População/métodos , Recidiva , Sistema de Registros , Fatores de Risco , Prevenção Secundária/métodos , Acidente Vascular Cerebral/diagnóstico
4.
Nephrol Dial Transplant ; 35(9): 1628-1634, 2020 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-32865209

RESUMO

BACKGROUND: The donor hypoperfusion phase before asystole in renal transplants from donors after circulatory death (DCD) has been considered responsible for worse outcomes than those from donors after brain death (DBD). METHODS: We included 10 309 adult renal transplants (7128 DBD and 3181 DCD; 1 January 2010-31 December 2016) from the UK Transplant Registry. We divided DCD renal transplants into groups according to hypoperfusion warm ischaemia time (HWIT). We compared delayed graft function (DGF) rates, primary non-function (PNF) rates and graft survival among them using DBD renal transplants as a reference. RESULTS: The DGF rate was 21.7% for DBD cases, but ∼40% for DCD cases with HWIT ≤30 min (0-10 min: 42.1%, 11-20 min: 43%, 21-30 min: 38.4%) and 60% for DCD cases with HWIT >30 min (P < 0.001). All DCD groups showed higher DGF risk than DBD renal transplants in multivariable analysis {0-10 min: odds ratio [OR] 2.686 [95% confidence interval (CI) 2.352-3.068]; 11-20 min: OR 2.531 [95% CI 2.003-3.198]; 21-30 min: OR 1.764 [95% CI 1.017-3.059]; >30 min: OR 5.814 [95% CI 2.798-12.081]}. The highest risk for DGF in DCD renal transplants with HWIT >30 min was confirmed by multivariable analysis [versus DBD: OR 5.814 (95% CI 2.798-12.081) versus DCD: 0-10 min: OR 2.165 (95% CI 1.038-4.505); 11-20 min: OR 2.299 (95% CI 1.075-4.902); 21-30 min: OR 3.3 (95% CI 1.33-8.197)]. No significant differences were detected regarding PNF rates (P = 0.713) or graft survival (P = 0.757), which was confirmed by multivariable analysis. CONCLUSIONS: HWIT >30 min increases the risk for DGF greatly, but without affecting PNF or graft survival.


Assuntos
Morte Encefálica , Sobrevivência de Enxerto , Transplante de Rim/mortalidade , Perfusão , Doadores de Tecidos/provisão & distribuição , Isquemia Quente/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Sistema de Registros , Estudos Retrospectivos , Taxa de Sobrevida , Fatores de Tempo
5.
Lancet ; 392(10144): 292-301, 2018 07 28.
Artigo em Inglês | MEDLINE | ID: mdl-30032978

RESUMO

BACKGROUND: Current diagnostics for HIV-associated tuberculosis are suboptimal, with missed diagnoses contributing to high hospital mortality and approximately 374 000 annual HIV-positive deaths globally. Urine-based assays have a good diagnostic yield; therefore, we aimed to assess whether urine-based screening in HIV-positive inpatients for tuberculosis improved outcomes. METHODS: We did a pragmatic, multicentre, double-blind, randomised controlled trial in two hospitals in Malawi and South Africa. We included HIV-positive medical inpatients aged 18 years or more who were not taking tuberculosis treatment. We randomly assigned patients (1:1), using a computer-generated list of random block size stratified by site, to either the standard-of-care or the intervention screening group, irrespective of symptoms or clinical presentation. Attending clinicians made decisions about care; and patients, clinicians, and the study team were masked to the group allocation. In both groups, sputum was tested using the Xpert MTB/RIF assay (Xpert; Cepheid, Sunnyvale, CA, USA). In the standard-of-care group, urine samples were not tested for tuberculosis. In the intervention group, urine was tested with the Alere Determine TB-LAM Ag (TB-LAM; Alere, Waltham, MA, USA), and Xpert assays. The primary outcome was all-cause 56-day mortality. Subgroup analyses for the primary outcome were prespecified based on baseline CD4 count, haemoglobin, clinical suspicion for tuberculosis; and by study site and calendar time. We used an intention-to-treat principle for our analyses. This trial is registered with the ISRCTN registry, number ISRCTN71603869. FINDINGS: Between Oct 26, 2015, and Sept 19, 2017, we screened 4788 HIV-positive adults, of which 2600 (54%) were randomly assigned to the study groups (n=1300 for each group). 13 patients were excluded after randomisation from analysis in each group, leaving 2574 in the final intention-to-treat analysis (n=1287 in each group). At admission, 1861 patients were taking antiretroviral therapy and median CD4 count was 227 cells per µL (IQR 79-436). Mortality at 56 days was reported for 272 (21%) of 1287 patients in the standard-of-care group and 235 (18%) of 1287 in the intervention group (adjusted risk reduction [aRD] -2·8%, 95% CI -5·8 to 0·3; p=0·074). In three of the 12 prespecified, but underpowered subgroups, mortality was lower in the intervention group than in the standard-of-care group for CD4 counts less than 100 cells per µL (aRD -7·1%, 95% CI -13·7 to -0·4; p=0.036), severe anaemia (-9·0%, -16·6 to -1·3; p=0·021), and patients with clinically suspected tuberculosis (-5·7%, -10·9 to -0·5; p=0·033); with no difference by site or calendar period. Adverse events were similar in both groups. INTERPRETATION: Urine-based tuberculosis screening did not reduce overall mortality in all HIV-positive inpatients, but might benefit some high-risk subgroups. Implementation could contribute towards global targets to reduce tuberculosis mortality. FUNDING: Joint Global Health Trials Scheme of the Medical Research Council, the UK Department for International Development, and the Wellcome Trust.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/urina , Países em Desenvolvimento , Soropositividade para HIV/urina , Programas de Rastreamento , Tuberculose/urina , Infecções Oportunistas Relacionadas com a AIDS/diagnóstico , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Infecções Oportunistas Relacionadas com a AIDS/mortalidade , Adulto , Método Duplo-Cego , Farmacorresistência Bacteriana , Feminino , Soropositividade para HIV/tratamento farmacológico , Soropositividade para HIV/mortalidade , Humanos , Malaui , Masculino , Pessoa de Meia-Idade , Rifampina/uso terapêutico , África do Sul , Escarro/microbiologia , Tuberculose/diagnóstico , Tuberculose/tratamento farmacológico , Tuberculose/mortalidade , Urinálise
6.
Cerebrovasc Dis ; 47(5-6): 260-267, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31311007

RESUMO

BACKGROUND: The benefit of statins on stroke incidence is well known. However, data on the relationship between pre- and post-stroke statin use, recurrence, and survival outcomes are limited. We aim to investigate the short- and long-term relationships between statin prescription, stroke recurrence, and survival in patients with first-ever ischemic stroke. METHODS: Data were collected from the population-based South London Stroke Register for the years 1995-2015. Patients were assessed at the time of first ever stroke, 3 months, and annually thereafter. Data on vascular risk factors, treatments prescribed, sociodemographic characteristics, stroke subtype, survival, and stroke recurrence were collected. Cox proportional hazard analyses were used to assess the relationship of statin prescriptions pre- and post-stroke on stroke severity, long-term recurrence and survival. RESULTS: Patients prescribed statins both pre- and post-stroke showed a 24% reduction in mortality (adjusted Hazard Ratio [aHR] 0.76, 0.60-0.97), those who were prescribed statins pre-stroke and then stopped post-stroke showed greater risk of mortality (aHR 1.85, 1.10-3.12) and stroke recurrence (aHR 3.25, 1.35-7.84) compared to those that were not prescribed statins at any time. No associations were observed between pre-stroke statin and severity of the initial stroke overall, though a protective effect against moderate/severe stroke (Glasgow Coma Scale ≤12) was observed in those aged 75+ years (aOR 0.70, 0.52-0.95). CONCLUSIONS: Statins play a significant role in improving the survival rates after a stroke. Adherence to the National Guidelines that promote statin treatment, primary and secondary prevention of stroke should be monitored and a focus for quality improvement programs.


Assuntos
Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Prevenção Primária , Prevenção Secundária , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/terapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Londres/epidemiologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Proteção , Recidiva , Sistema de Registros , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/mortalidade , Fatores de Tempo , Adulto Jovem
7.
Thorax ; 72(8): 736-745, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28389598

RESUMO

BACKGROUND: Contact tracing is a key element in England's 2015 collaborative TB strategy, although proposed indicators of successful contact tracing remain undescribed. METHODS: We conducted descriptive and multivariable analyses of contact tracing of TB cases in London between 1 July 2012 and 31 December 2015 using cohort review data from London's TB Register, identifying characteristics associated with improved indicators and yield. RESULTS: Of the pulmonary TB cases notified, 60% (2716/4561) had sufficient information for inclusion. Of these, 91% (2481/2716) had at least 1 contact (median: 4/case (IQR: 2-6)) identified, with 86% (10 251/11 981) of these contacts evaluated. 4.1% (177/4328), 1.3% (45/3421) and 0.70% (51/7264) of evaluated contacts of pulmonary smear-positive, pulmonary smear-negative and non-pulmonary cases, respectively, had active disease. Cases who were former prisoners or male were less likely to have at least one contact identified than those never imprisoned or female, respectively. Cases diagnosed at clinics with more directly observed therapy or social workers were more likely to have one or more contacts identified. Contacts screened at a different clinic to their index case or of male index cases were less likely to be evaluated than those screened at the same clinic or of women, respectively; yield of active disease was similar by sex. 10% (490/4850) of evaluated child contacts had latent TB infection. CONCLUSIONS: These are the first London-wide estimates of TB contact tracing indicators which are important for monitoring the strategy's success and informing risk assessment of index cases. Understanding why differences in indicators occur between groups could improve contact tracing outcomes.


Assuntos
Busca de Comunicante/métodos , Tuberculose/diagnóstico , Adolescente , Adulto , Criança , Feminino , Humanos , Incidência , Londres/epidemiologia , Masculino , Sistema de Registros , Estudos Retrospectivos , Teste Tuberculínico , Tuberculose/epidemiologia , Tuberculose/transmissão , Adulto Jovem
8.
BMC Psychiatry ; 17(1): 376, 2017 11 24.
Artigo em Inglês | MEDLINE | ID: mdl-29178895

RESUMO

BACKGROUND: In the UK, crisis planning for mental health care should acknowledge the right to make an informed advance treatment refusal under the Mental Capacity Act 2005. Our aims were to estimate the demand for such treatment refusals within a sample of service users who had had a recent hospital admission for psychosis or bipolar disorder, and to examine the relationship between refusals, and service user characteristics. METHODS: To identify refusals we conducted content analysis of Joint Crisis Plans, which are plans formulated by service users and their clinical team with involvement from an external facilitator, and routine care plans in sub-samples from a multi-centre randomised controlled trial of Joint Crisis Plans (plus routine mental health care) versus routine care alone (CRIMSON) in England. Factors hypothesised to be associated with refusals were identified using the trial data collected through baseline interviews of service users and clinicians and collection of routine clinical data. RESULTS: Ninety-nine of 221 (45%) of the Joint Crisis Plans contained a treatment refusal compared to 10 of 424 (2.4%) baseline routine care plans. No Joint Crisis Plans recorded disagreement with refusals on the part of clinicians. Among those with completed Joint Crisis Plans, adjusted analyses indicated a significant association between treatment refusals and perceived coercion at baseline (odds ratio = 1.21, 95% CI 1.02-1.43), but not with baseline working alliance or a past history of involuntary admission. CONCLUSIONS: We demonstrated significant demand for written treatment refusals in line with the Mental Capacity Act 2005, which had not previously been elicited by the process of treatment planning. Future treatment/crisis plans should incorporate the opportunity for service users to record a treatment refusal during the drafting of such plans. TRIAL REGISTRATION: ISRCTN11501328 Registered 13th March 2008.


Assuntos
Intervenção em Crise/métodos , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Transtornos Mentais/terapia , Planejamento de Assistência ao Paciente/estatística & dados numéricos , Recusa do Paciente ao Tratamento/legislação & jurisprudência , Adulto , Transtorno Bipolar/psicologia , Transtorno Bipolar/terapia , Coerção , Intervenção em Crise/legislação & jurisprudência , Inglaterra , Análise Fatorial , Feminino , Necessidades e Demandas de Serviços de Saúde/legislação & jurisprudência , Hospitalização , Humanos , Consentimento Livre e Esclarecido/legislação & jurisprudência , Consentimento Livre e Esclarecido/psicologia , Masculino , Transtornos Mentais/psicologia , Planejamento de Assistência ao Paciente/legislação & jurisprudência , Transtornos Psicóticos/psicologia , Transtornos Psicóticos/terapia , Ensaios Clínicos Controlados Aleatórios como Assunto , Recusa do Paciente ao Tratamento/psicologia
9.
PLoS Med ; 13(11): e1002175, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27875528

RESUMO

BACKGROUND: Seasonal Malaria Chemoprevention (SMC) with sulfadoxine-pyrimethamine (SP) plus amodiaquine (AQ), given each month during the transmission season, is recommended for children living in areas of the Sahel where malaria transmission is highly seasonal. The recommendation for SMC is currently limited to children under five years of age, but, in many areas of seasonal transmission, the burden in older children may justify extending this age limit. This study was done to determine the effectiveness of SMC in Senegalese children up to ten years of age. METHODS AND FINDINGS: SMC was introduced into three districts over three years in central Senegal using a stepped-wedge cluster-randomised design. A census of the population was undertaken and a surveillance system was established to record all deaths and to record all cases of malaria seen at health facilities. A pharmacovigilance system was put in place to detect adverse drug reactions. Fifty-four health posts were randomised. Nine started implementation of SMC in 2008, 18 in 2009, and a further 18 in 2010, with 9 remaining as controls. In the first year of implementation, SMC was delivered to children aged 3-59 months; the age range was then extended for the latter two years of the study to include children up to 10 years of age. Cluster sample surveys at the end of each transmission season were done to measure coverage of SMC and the prevalence of parasitaemia and anaemia, to monitor molecular markers of drug resistance, and to measure insecticide-treated net (ITN) use. Entomological monitoring and assessment of costs of delivery in each health post and of community attitudes to SMC were also undertaken. About 780,000 treatments were administered over three years. Coverage exceeded 80% each month. Mortality, the primary endpoint, was similar in SMC and control areas (4.6 and 4.5 per 1000 respectively in children under 5 years and 1.3 and 1.2 per 1000 in children 5-9 years of age; the overall mortality rate ratio [SMC: no SMC] was 0.90, 95% CI 0.68-1.2, p = 0.496). A reduction of 60% (95% CI 54%-64%, p < 0.001) in the incidence of malaria cases confirmed by a rapid diagnostic test (RDT) and a reduction of 69% (95% CI 65%-72%, p < 0.001) in the number of treatments for malaria (confirmed and unconfirmed) was observed in children. In areas where SMC was implemented, incidence of confirmed malaria in adults and in children too old to receive SMC was reduced by 26% (95% CI 18%-33%, p < 0.001) and the total number of treatments for malaria (confirmed and unconfirmed) in these older age groups was reduced by 29% (95% CI 21%-35%, p < 0.001). One hundred and twenty-three children were admitted to hospital with a diagnosis of severe malaria, with 64 in control areas and 59 in SMC areas, showing a reduction in the incidence rate of severe disease of 45% (95% CI 5%-68%, p = 0.031). Estimates of the reduction in the prevalence of parasitaemia at the end of the transmission season in SMC areas were 68% (95% CI 35%-85%) p = 0.002 in 2008, 84% (95% CI 58%-94%, p < 0.001) in 2009, and 30% (95% CI -130%-79%, p = 0.56) in 2010. SMC was well tolerated with no serious adverse reactions attributable to SMC drugs. Vomiting was the most commonly reported mild adverse event but was reported in less than 1% of treatments. The average cost of delivery was US$0.50 per child per month, but varied widely depending on the size of the health post. Limitations included the low rate of mortality, which limited our ability to detect an effect on this endpoint. CONCLUSIONS: SMC substantially reduced the incidence of outpatient cases of malaria and of severe malaria in children, but no difference in all-cause mortality was observed. Introduction of SMC was associated with an overall reduction in malaria incidence in untreated age groups. In many areas of Africa with seasonal malaria, there is a substantial burden in older children that could be prevented by SMC. SMC in older children is well tolerated and effective and can contribute to reducing malaria transmission. TRIAL REGISTRATION: ClinicalTrials.gov NCT00712374.


Assuntos
Amodiaquina/uso terapêutico , Antimaláricos/uso terapêutico , Malária/tratamento farmacológico , Malária/prevenção & controle , Pirimetamina/uso terapêutico , Sulfadoxina/uso terapêutico , Quimioprevenção/normas , Criança , Pré-Escolar , Combinação de Medicamentos , Humanos , Lactente , Estações do Ano , Senegal
10.
BMC Med ; 14: 53, 2016 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-27007773

RESUMO

BACKGROUND: Simple immune capture assays that detect mycobacterial lipoarabinomannan (LAM) antigen in urine are promising new tools for the diagnosis of HIV-associated tuberculosis (HIV-TB). In addition, however, recent prospective cohort studies of patients with HIV-TB have demonstrated associations between LAM in the urine and increased mortality risk during TB treatment, indicating an additional utility of urinary LAM as a prognostic marker. We conducted a systematic review and meta-analysis to summarise the evidence concerning the strength of this relationship in adults with HIV-TB in sub-Saharan Africa, thereby quantifying the assay's prognostic value. METHODS: We searched MEDLINE and Embase databases using comprehensive search terms for 'HIV', 'TB', 'LAM' and 'sub-Saharan Africa'. Identified studies were reviewed and selected according to predefined criteria. RESULTS: We identified 10 studies eligible for inclusion in this systematic review, reporting on a total of 1172 HIV-TB cases. Of these, 512 patients (44 %) tested positive for urinary LAM. After a variable duration of follow-up of between 2 and 6 months, overall case fatality rates among HIV-TB cases varied between 7 % and 53 %. Pooled summary estimates generated by random-effects meta-analysis showed a two-fold increased risk of mortality for urinary LAM-positive HIV-TB cases compared to urinary LAM-negative HIV-TB cases (relative risk 2.3, 95 % confidence interval 1.6-3.1). Some heterogeneity was explained by study setting and patient population in sub-group analyses. Five studies also reported multivariable analyses of risk factors for mortality, and pooled summary estimates demonstrated over two-fold increased mortality risk (odds ratio 2.5, 95 % confidence interval 1.4-4.5) among urinary LAM-positive HIV-TB cases, even after adjustment for other risk factors for mortality, including CD4 cell count. CONCLUSIONS: We have demonstrated that detectable LAM in urine is associated with increased risk of mortality during TB treatment, and that this relationship remains after adjusting for other risk factors for mortality. This may simply be due to a positive test for urinary LAM serving as a marker of higher mycobacterial load and greater disease dissemination and severity. Alternatively, LAM antigen may directly compromise host immune responses through its known immunomodulatory effects. Detectable LAM in the urine is an independent risk factor for mortality among patients receiving treatment for HIV-TB. Further research is warranted to elucidate the underlying mechanisms and to determine whether this vulnerable patient population may benefit from adjunctive interventions.


Assuntos
Biomarcadores/urina , Infecções por HIV/complicações , Lipopolissacarídeos/urina , Tuberculose/mortalidade , Tuberculose/urina , Adulto , África Subsaariana , Feminino , Humanos , Masculino , Prognóstico , Estudos Prospectivos , Fatores de Risco , Tuberculose/complicações
11.
BMC Infect Dis ; 16(1): 501, 2016 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-27659507

RESUMO

BACKGROUND: HIV-associated tuberculosis (TB) co-infection remains an enormous burden to international public health. Post-mortem studies have highlighted the high proportion of HIV-positive adults admitted to hospital with TB. Determine TB-LAM and Xpert MTB/RIF assays can substantially increase diagnostic yield of TB within one day of hospital admission. However, it remains unclear if this approach can impact clinical outcomes. The STAMP trial aims to test the hypothesis that the implementation a urine-based screening strategy for TB can reduce all cause-mortality among HIV-positive patients admitted to hospital when compared to current, sputum-based screening. METHODS: The trial is a pragmatic, individually randomised, multi-country (Malawi and South Africa) clinical trial with two study arms (1:1 recruitment). Unselected HIV-positive patients admitted to medical wards, irrespective of presentation, meeting the inclusion criteria and giving consent will be randomized to screening for TB using either: (i) 'standard of care'- testing of sputum using the Xpert MTB/RIF assay (Xpert) or (ii) 'intervention'- testing of sputum using Xpert and testing of urine using (a) Determine TB-LAM lateral-flow assay and (b) Xpert following concentration of urine by centrifugation. Patients will be excluded if they have received TB treatment in the previous 12 months, if they have received isoniazid preventive therapy in the last 6 months, if they are aged <18 years or they live outside the pre-specified geographical area. Results will be provided to the responsible medical team as soon as available to inform decisions regarding TB treatment. Both the study and routine medical team will be masked to study arm allocation. 1300 patients will be enrolled per arm (equal numbers at the two trial sites). The primary endpoint is all-cause mortality at 56 days. An economic analysis will be conducted to project long-term outcomes for shorter-term trial data, including cost-effectiveness. DISCUSSION: This pragmatic trial assesses an intervention to reduce the high mortality caused by HIV-associated TB, which could feasibly be scaled up in high-burden settings if shown to be efficacious and cost-effective. We discuss the challenges of designing a trial to assess the impact on mortality of laboratory-based TB screening interventions given frequent initiation of empirical treatment and a failure of several previous clinical trials to demonstrate an impact on clinical outcomes. We also elaborate on the practical and ethical issues of 'testing a test' in general. TRIAL REGISTRATION: ISRCTN Registry ( ISRCTN71603869 ) prospectively registered 08 May 2015; the South African National Controlled Trials Registry (DOH-27-1015-5185) prospectively registered October 2015.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/urina , Síndrome da Imunodeficiência Adquirida/complicações , Infecções por HIV/complicações , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Tuberculose/urina , Infecções Oportunistas Relacionadas com a AIDS/diagnóstico , Síndrome da Imunodeficiência Adquirida/microbiologia , Síndrome da Imunodeficiência Adquirida/mortalidade , Adulto , Infecções por HIV/microbiologia , Hospitalização , Humanos , Isoniazida/uso terapêutico , Malaui , Programas de Rastreamento , África do Sul , Escarro/microbiologia , Tuberculose/diagnóstico , Tuberculose/prevenção & controle , Urinálise/métodos
12.
Br J Psychiatry ; 207(2): 123-9, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25999337

RESUMO

BACKGROUND: Research suggests that the way in which cognitive therapy is delivered is an important factor in determining outcomes. We test the hypotheses in which the development of a shared problem list, use of case formulation, homework tasks and active intervention strategies will act as process variables. METHOD: Presence of these components during therapy is taken from therapist notes. The direct and indirect effect of the intervention is estimated by an instrumental variable analysis. RESULTS: A significant decrease in the symptom score for case formulation (coefficient = -23, 95% CI -44 to -1.7, P = 0.036) and homework (coefficient = -0.26, 95% CI -0.51 to -0.001, P = 0.049) is found. Improvement with the inclusion of active change strategies is of borderline significance (coefficient = -0.23, 95% CI -0.47 to 0.005, P = 0.056). CONCLUSIONS: There is a greater treatment effect if formulation and homework are involved in therapy. However, high correlation between components means that these may be indicators of overall treatment fidelity.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Transtornos Psicóticos/prevenção & controle , Adolescente , Adulto , Feminino , Humanos , Masculino , Resolução de Problemas , Desempenho Psicomotor , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
13.
Lancet ; 381(9878): 1634-41, 2013 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-23537606

RESUMO

BACKGROUND: The CRIMSON (CRisis plan IMpact: Subjective and Objective coercion and eNgagement) study is an individual level, randomised controlled trial that compared the effectiveness of Joint Crisis Plans (JCPs) with treatment as usual for people with severe mental illness. The JCP is a negotiated statement by a patient of treatment preferences for any future psychiatric emergency, when he or she might be unable to express clear views. We assessed whether the additional use of JCPs improved patient outcomes compared with treatment as usual. METHODS: Patients were eligible if they had at least one psychiatric admission in the previous 2 years and were on the Enhanced Care Programme Approach register. The study was done with 64 generic and specialist community mental health teams in four English mental health care provider organisations (trusts). Hypotheses tested were that, compared with the control group, the intervention group would experience: fewer compulsory admissions (primary outcome); fewer psychiatric admissions; shorter psychiatric stays; lower perceived coercion; improved therapeutic relationships; and improved engagement. We stratified participants by centre. The research team but not participants nor clinical staff were masked to allocation. This study is registered with ClinicalTrials.gov, number ISRCTN11501328. FINDINGS: 569 participants were randomly assigned (285 to the intervention group and 284 to the control group). No significant treatment effect was seen for the primary outcome (56 [20%] sectioned in the control group and 49 [18%] in the JCP group; odds ratio 0·90 [95% CI 0·58-1·39, p=0·63]) or any secondary outcomes, with the exception of an improved secondary outcome of therapeutic relationships (17·3 [7·6] vs 16·0 [7·1]; adjusted difference -1·28 [95% CI -2·56 to -0·01, p=0·049]). Qualitative data supported this finding. INTERPRETATION: Our findings are inconsistent with two earlier JCP studies, and show that the JCP is not significantly more effective than treatment as usual. There is evidence to suggest the JCPs were not fully implemented in all study sites, and were combined with routine clinical review meetings which did not actively incorporate patients' preferences. The study therefore raises important questions about implementing new interventions in routine clinical practice. FUNDING: Medical Research Council UK and the National Institute for Health Research.


Assuntos
Internação Compulsória de Doente Mental/estatística & dados numéricos , Intervenção em Crise/organização & administração , Transtornos Psicóticos/terapia , Adulto , Distribuição de Qui-Quadrado , Coerção , Feminino , Grupos Focais , Humanos , Entrevistas como Assunto , Masculino , Análise de Regressão , Estatísticas não Paramétricas , Resultado do Tratamento , Reino Unido
14.
Soc Psychiatry Psychiatr Epidemiol ; 49(4): 665-71, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24213523

RESUMO

PURPOSE: Throughout the past 50 years mental health services have aimed to provide and improve high quality inpatient care. It is not clear whether there has been improvement as service users and nursing staff have both expressed frustration at the lack of therapeutic activities. In particular, it may be that the changing levels of symptoms over the past 50 years may affect engagement with ward activities. METHODS: Eight wards in a health care trust in London serving an inner city and urban populations participated. Data were collected on participation in activities and 116 service users' perceptions of acute care as well as clinical factors. RESULTS: Less time was spent participating in activities today than 50 years ago, while one quarter of service users reported taking part in no activities at all. Uptake of activities was related to more positive service user perceptions of the wards. Symptom severity did not impact the frequency of participation in activities, although those who took part in no activities at all had higher negative symptoms scores. CONCLUSIONS: Service users' uptake of activities was not related to the severity of their illness. This belies the belief that the acutely ill cannot take part in meaningful activities. This study supports the view that more therapeutic activities could be taken up by the acutely ill and are in fact appreciated.


Assuntos
Desinstitucionalização , Pacientes Internados , Transtornos Mentais/terapia , Serviços de Saúde Mental/estatística & dados numéricos , Adulto , Estudos Transversais , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Londres , Masculino , Transtornos Mentais/psicologia , Serviços de Saúde Mental/organização & administração , Áreas de Pobreza , Encaminhamento e Consulta , População Urbana
15.
Pediatr Infect Dis J ; 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38986525

RESUMO

BACKGROUND: A granular understanding of respiratory syncytial virus (RSV) burden in England is needed to prepare for new RSV prevention strategies. We estimated the rates of RSV hospital admissions before the age of 2 years in England and described baseline characteristics. METHODS: A birth cohort of all infants born between March 1, 2015, and February 28, 2017 (n = 449,591) was established using Clinical Practice Research Datalink-Hospital Episode Statistics. Case cohorts included infants with admission for (1) RSV, (2) bronchiolitis, (3) any respiratory tract infection (RTI) <24 months and (4) RSV predicted by an algorithm <12 months. Baseline characteristics were described in the case and comparative cohorts (infants without corresponding admission). Cumulative incidence and admission rates were calculated. Multiple linear regression was used to estimate the proportion of RTI healthcare visits attributable to RSV. RESULTS: The RSV-coded/RSV-predicted case cohorts were composed of 4813/12,694 infants (cumulative incidence: 1.1%/2.8%). Case cohort infants were more likely to have low birth weight, comorbidities and to be born during RSV season than comparative cohort infants, yet >77% were term-healthy infants and >54% were born before the RSV season. During the first year of life, 11.6 RSV-coded and 34.4 RSV-predicted hospitalizations occurred per 1000 person-years. Overall, >25% of unspecified lower RTI admissions were estimated to be due to RSV. CONCLUSIONS: In England, 1 in 91 infants had an RSV-coded admission, likely underestimated by ~3-fold. Most infants were term-healthy infants born before the RSV season. To decrease the total burden of RSV at the population level, immunization programs need to protect all infants.

16.
Br J Psychiatry ; 203(2): 140-5, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23846995

RESUMO

BACKGROUND: Internalised stigma in young people meeting criteria for at-risk mental states (ARMS) has been highlighted as an important issue, and it has been suggested that provision of cognitive therapy may increase such stigma. AIMS: To investigate the effects of cognitive therapy on internalised stigma using a secondary analysis of data from the EDIE-2 trial. METHOD: Participants meeting criteria for ARMS were recruited as part of a multisite randomised controlled trial of cognitive therapy for prevention and amelioration of psychosis. Participants were assessed at baseline and at 6, 12, 18 and 24 months using measures of psychotic experiences, symptoms and internalised stigma. RESULTS: Negative appraisals of experiences were significantly reduced in the group assigned to cognitive therapy (estimated difference at 12 months was -1.36 (95% CI -2.69 to -0.02), P = 0.047). There was no difference in social acceptability of experiences (estimated difference at 12 months was 0.46, 95% CI -0.05 to 0.98, P = 0.079). CONCLUSIONS: These findings suggest that, rather than increasing internalised stigma, cognitive therapy decreases negative appraisals of unusual experiences in young people at risk of psychosis; as such, it is a non-stigmatising intervention for this population.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Transtornos Psicóticos/terapia , Autoimagem , Estigma Social , Adolescente , Adulto , Feminino , Humanos , Masculino , Aceitação pelo Paciente de Cuidados de Saúde , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/psicologia , Fatores de Risco , Método Simples-Cego , Resultado do Tratamento
17.
Cochrane Database Syst Rev ; (10): CD001711, 2013 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-24096715

RESUMO

BACKGROUND: It is important to seek cost-effective methods of improving the care and outcome of those with serious mental illnesses. User-held records, where the person with the illness holds all or some personal information relating to the course and care of their illness, are now the norm in some clinical settings. Their value for those with severe mental illnesses is unknown. OBJECTIVES: To evaluate the effects of personalised, accessible, user-held clinical information for people with a severe mental illness (defined as psychotic illnesses). SEARCH METHODS: We updated previous searches by searching the Cochrane Schizophrenia Group Trials Register in August 2011. This register is compiled by systematic searches of major databases, and handsearches of journals and conference proceedings. SELECTION CRITERIA: We included all relevant randomised controlled trials (RCTs) that:i. have recruited adult participants with a diagnosis of a severe mental illness (specifically psychotic illnesses and severe mood disorders such as bipolar and depression with psychotic features); andii. compared any personalised and accessible clinical information held by the user beyond standard care to standard information routinely held such as appointment cards and generic information on diagnosis, treatment or services available. DATA COLLECTION AND ANALYSIS: Study selection and data extraction were undertaken independently by two authors and confirmed and checked by a third. We contacted authors of trials for additional and missing data. Where possible, we calculated risk ratios (RR) and 95% confidence intervals (CI). We used a random-effects model. We assessed risk of bias for included studies and created a 'Summary of findings' table using GRADE. MAIN RESULTS: Four RCTs (n = 607) of user-held records versus treatment as usual met the inclusion criteria. When the effect of user-held records on psychiatric hospital admissions was compared with treatment as usual in four studies, the pooled treatment effect showed no significant impact of the intervention and was of very low magnitude (n = 597, 4 RCTs, RR 0.99 CI 0.71 to 1.38, moderate quality evidence). Similarly, there was no significant effect of the intervention in three studies which investigated compulsory psychiatric hospital admissions (n = 507, 4 RCTs, RR 0.64 CI 0.37 to 1.10, moderate quality evidence). Other outcomes including satisfaction and mental state were investigated but pooled estimates were not obtainable due to skewed or poorly reported data, or only being investigated by one study. Two outcomes (violence and death) were not investigated by the included studies. Two important randomised studies are ongoing. AUTHORS' CONCLUSIONS: The evidence gap remains regarding user-held, personalised, accessible clinical information for people with psychotic illnesses for many of the outcomes of interest. However, based on moderate quality evidence, this review suggests that there is no effect of the intervention on hospital or outpatient appointment use for individuals with psychotic disorders. The number of studies is low, however, and further evidence is required to ascertain whether these results are mediated by the type of intervention, such as involvement of a clinical team or the type of information included.


Assuntos
Registros de Saúde Pessoal , Transtornos Psicóticos/terapia , Adulto , Hospitalização/estatística & dados numéricos , Humanos , Acesso dos Pacientes aos Registros , Ensaios Clínicos Controlados Aleatórios como Assunto
18.
Drug Saf ; 46(4): 405-416, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36976448

RESUMO

INTRODUCTION: Concerns of the persistence and severity of the adverse effects of fluoroquinolones, mainly involving the nervous system, muscles and joints, resulted in the 2018 referral procedure led by the European Medicines Agency (EMA). They advised to stop prescribing fluoroquinolones for infections of mild severity or of a presumed self-limiting course and for prevention of infections, plus to restrict prescriptions in cases of milder infections where other treatment options are available, and restrict in at-risk populations. We aimed to examine whether the impact of EMA regulatory interventions implemented throughout 2018-2019 had an impact on fluoroquinolone prescribing rates. METHODS: A retrospective population-based cohort study was conducted using electronic health care records from six European countries between 2016 and 2021. We analysed monthly incident fluoroquinolone use rates overall and for each fluoroquinolone active substance through flexible modelling via segmented regression to detect time points of trend changes, in monthly percentage change (MPC). RESULTS: The incidence of fluoroquinolone use ranged from 0.7 to 8.0/1000 persons per month over all calendar years. While changes in fluoroquinolone prescriptions were observed over time across countries, these were inconsistent and did not seem to be temporally related to EMA interventions (e.g., Belgium: February/May 2018, MPC - 33.3%, 95% confidence interval [CI] - 35.9 to - 30.7; Germany: February/May 2019, MPC - 12.6%, 95% CI - 13.7 to - 11.6]; UK: January/April 2016, MPC - 4.9%, 95% CI - 6.2 to - 3.6). CONCLUSION: The regulatory action associated with the 2018 referral did not seem to have relevant effects on fluoroquinolone prescribing in primary care.


Assuntos
Antibacterianos , Fluoroquinolonas , Humanos , Fluoroquinolonas/efeitos adversos , Antibacterianos/efeitos adversos , União Europeia , Estudos Retrospectivos , Estudos de Coortes
19.
Br J Psychiatry ; 201(1): 57-64, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22157800

RESUMO

BACKGROUND: Direct social contact interventions are known to reduce mental health stigma. Filmed social contact may be equally effective and have practical and cost advantages. AIMS: To compare the effectiveness of a DVD, a live intervention and a lecture control, in reducing stigma, testing the hypotheses that: (a) DVD and live interventions will be equally effective; and (b) the interventions with social contact (DVD/live) will be more effective than the lecture. Cost-effectiveness, process and acceptability are also assessed. METHOD: Student nurses were randomised to: (a) watch a DVD of service users/informal carers talking about their experiences, (b) watch a similar live presentation, or (c) attend a lecture. Primary outcomes were changes in attitudes (using the Mental Illness: Clinicians Attitudes Scale, MICA), emotional reactions (using the Emotional Reactions to Mental Illness Scale, ERMIS), intended proximity (using the Reported and Intended Behaviour Scale, RIBS), and knowledge (using the Social Contact Intended Learning Outcomes, SCILO), immediately after the intervention and at 4-month follow-up. RESULTS: For the 216 participants, there were no differences between the DVD and live groups on MICA, ERMIS or RIBS scores. The DVD group had higher SCILO (knowledge) scores. The combined social contact group (DVD/live) had better MICA and RIBS scores than the lecture group, the latter difference maintained at 4 months. The DVD was the most cost-effective of the interventions, and the live session the most popular. CONCLUSIONS: Our hypotheses were confirmed. This study supports the wider use of filmed social contact interventions to reduce stigma about mental illness.


Assuntos
Atitude do Pessoal de Saúde , Atitude Frente a Saúde , Relações Interpessoais , Transtornos Mentais/psicologia , Estereotipagem , Gravação de Videodisco , Adulto , Educação em Enfermagem , Escolaridade , Feminino , Humanos , Masculino , Narração , Projetos Piloto , Enfermagem Psiquiátrica/educação , Escalas de Graduação Psiquiátrica , Adulto Jovem
20.
Can J Psychiatry ; 57(3): 152-60, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22398001

RESUMO

OBJECTIVE: To evaluate the impact on the general public of England's Time to Change program to reduce mental health-related stigma and discrimination using newly developed measures of knowledge and intended behaviour regarding people with mental health problems, and an established attitudes scale, and to investigate whether social desirability affects responses to the new measures and test whether this varies according to data collection method. METHOD: The Mental Health Knowledge Schedule (MAKS) and Reported and Intended Behaviour Scale (RIBS) were administered together with the 13-item version of the Marlowe-Crowne Social Desirability Scale to 2 samples (each n = 196) drawn from the Time to Change mass media campaign target group; one group was interviewed face to face, while the other completed the measures as an online survey. RESULTS: After controlling for other covariates, interaction terms between collection method and social desirability were positive for each instrument. The social desirability score was associated with the RIBS score in the face-to-face group only (ß = 0.35, 95% CI 0.14 to 0.57), but not with the MAKS score in either group; however, MAKS scores were more likely to be positive when data were collected face to face (ß = 1.53, 95% CI 0.74 to 2.32). CONCLUSIONS: Behavioural intentions toward people with mental health problems may be better assessed using online self-complete methods than in-person interviews. The effect of face-to-face interviewing on knowledge requires further investigation.


Assuntos
Coleta de Dados/métodos , Transtornos Mentais/psicologia , Desejabilidade Social , Estigma Social , Adulto , Inglaterra , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Autorrelato , Inquéritos e Questionários
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