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1.
J Public Health (Oxf) ; 44(1): e59-e67, 2022 03 07.
Artículo en Inglés | MEDLINE | ID: mdl-33348365

RESUMEN

BACKGROUND: Despite increasing multimorbidity across the lifespan, little is known about the co-occurrence of conditions and risk factors among younger adults. This population-based study examines multimorbidity, social determinants and associated mortality among younger and middle-age adults. METHOD: Analysis was based on the Northern Ireland population aged 25-64 years enumerated in the 2011 Census (n = 878 345), with all-cause mortality follow-up to 2014 (8659 deaths). Logistic regression was used to examine social determinants and Cox proportional hazards models in the analysis of associated mortality. RESULTS: Prevalence of multimorbidity was 13.7% in females and 12.7% in males. There was a strong association between multimorbidity that included mental/cognitive illness and deprivation. Among those never married, multimorbid physical conditions were less likely [relative risk ratios (RRR) = 0.92: 95% confidence interval (CI) = 0.88, 0.95 for males; and RRR = 0.90: 0.87, 0.94 for females]. Rurality was associated with lower physical multimorbidity (RRR = 0.92: 0.89, 0.95) but higher mental/cognitive multimorbidity (RRR = 1.35: 1.12, 1.64) among females. All multimorbid categories were associated with elevated risk of mortality. CONCLUSION: The health and economic challenges created by multimorbidity should be addressed further 'upstream'. Future multimorbidity research should include younger adults to inform the development of preventative interventions and align health and social care services more closely with patients' needs.


Asunto(s)
Trastornos Mentales , Multimorbilidad , Adulto , Femenino , Humanos , Masculino , Trastornos Mentales/epidemiología , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Determinantes Sociales de la Salud
2.
Public Health ; 203: 110-115, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35038629

RESUMEN

OBJECTIVES: At the end of 2020, many countries commenced a vaccination programme against SARS-CoV-2. Public health authorities aim to prevent and interrupt outbreaks of infectious disease in social care settings. We aimed to investigate the association between the introduction of the vaccination programme and the frequency and duration of COVID-19 outbreaks in Northern Ireland (NI). STUDY DESIGN: We undertook an ecological study using routinely available national data. METHODS: We used Poisson regression to measure the relationship between the number of RT-PCR confirmed COVID-19 outbreaks in care homes, and as a measure of community COVID-19 prevalence, the Office for National Statistics COVID-19 Infection Survey estimated the number of people testing positive for COVID-19 in NI. We estimated the change in this relationship and estimated the expected number of care home outbreaks in the absence of the vaccination programme. A Cox proportional hazards model estimated the hazard ratio of a confirmed COVID-19 care home outbreak closure. RESULTS: Care home outbreaks reduced by two-thirds compared to expected following the introduction of the vaccination programme, from a projected 1625 COVID-19 outbreaks (95% prediction interval 1553-1694) between 7 December 2020 and 28 October 2021 to an observed 501. We estimated an adjusted hazard ratio of 2.53 of the outbreak closure assuming a 21-day lag for immunity. CONCLUSIONS: These findings describe the association of the vaccination with a reduction in outbreak frequency and duration across NI care homes. This indicates probable reduced harm and disruption from COVID-19 in social care settings following vaccination. Future research using individual level data from care home residents will be needed to investigate the effectiveness of the vaccines and the duration of their effects.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Brotes de Enfermedades , Humanos , SARS-CoV-2 , Vacunación
3.
Ir Med J ; 111(4): 740, 2018 04 19.
Artículo en Inglés | MEDLINE | ID: mdl-30488684

RESUMEN

Aim The aim of this study is to determine the knowledge, attitudes and practices of Non-Consultant Hospital Doctors (NCHDs) in the immediate post-fall period. Methods A survey study design was employed using an online questionnaire of all NCHDs in SVUH comprising 15 questions that blend dichotomous, multiple choice, scaled and open-ended questions to determine knowledge, attitudes and practices of NCHDs across three constructs; injury management, falls prevention and fracture prevention. Descriptive statistics was used to analyse data. Results There was a 40% response rate (n=105). The respondents reported dissatisfaction with their standard of falls assessment training (mean 4/10). Between 60-70% of NCHDs do not routinely determine hip trauma, joint tenderness, syncope, use of anti-coagulants, visual symptoms, amnesia or vomiting. Half of respondents (n=57) rarely or never rationalised medications. The main reasons for this are lack of knowledge of alternatives (63%), time constraints (65%), benefits outweighing the risks (80%) and reluctance to interfere with care of another medical team (86%). Only 9% always consider a bone health review. Discussion A targeted education programme in the areas of hip assessment, neurological assessment, syncope management, medication rationalisation and bone protection is warranted.


Asunto(s)
Accidentes por Caídas/prevención & control , Fracturas Óseas/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Hospitales , Médicos/psicología , Heridas y Lesiones/terapia , Humanos , Sistemas en Línea , Satisfacción Personal , Encuestas y Cuestionarios
4.
Eur J Dent Educ ; 22(3): 167-173, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29193633

RESUMEN

BACKGROUND: Little research exists in the teaching of evidence-based dentistry (EBD) to students in the fields of dental hygiene, dental nursing and orthodontic therapy. This study aims to analyse the effect of a 1-day EBD programme on knowledge and confidence whilst also gaining insight into students' experience of the intervention. METHOD: A mixed methods study was utilised with explanatory sequential design. The population consisted of dental hygiene (DH), dental nursing (DN) and orthodontic therapy (OT) students (N = 44). The intervention consisted of a 1-day active learning EBD programme, delivered via group projects and lectures. In the initial quantitative phase, a standardised questionnaire pre- and post -intervention measured changes in confidence for all participants, whilst change in knowledge was measured for DH and OT students only. Following this, focus groups were scheduled for all members of each discipline 3 months post-intervention for DN and 2 months post-intervention for DH and OT students. Semi-structured focus group schedules were drawn up, and groups organised according to the outcomes of quantitative data analysis. Qualitative results were analysed using a deductive adaptation of Burnard's thematic content analysis. RESULTS: Forty-two students took part (94.45%) in this study. Median knowledge scores increased from zero to two of five (P < .001), whilst median confidence score doubled from four to eight of eight (P < .001). Results of thematic content analysis were coincident with quantitative results; however, it also provided constructive feedback regarding design and content of the course. CONCLUSIONS: A 1-day bespoke programme in EBD increased students' confidence and knowledge in EBD skills. However, the findings further suggest that two successive half-day training sessions instead of one full-day training, tied in with coursework that requires the application of the acquired skills, may increase the learning experience further.


Asunto(s)
Asistentes Dentales/educación , Asistentes Dentales/psicología , Atención Odontológica , Higienistas Dentales/educación , Higienistas Dentales/psicología , Educación en Odontología , Odontología Basada en la Evidencia/educación , Aprendizaje , Ortodoncia/educación , Estudiantes de Odontología/psicología , Estudiantes del Área de la Salud/psicología , Competencia Clínica , Humanos , Conocimiento , Autoimagen , Encuestas y Cuestionarios
5.
Pancreatology ; 17(3): 329-333, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28318891

RESUMEN

The National Confidential Enquiry into Patient Outcome and Death (NCEPOD) is an independent organisation whose remit is to review the quality of medical and surgical care provided in the United Kingdom. We undertook a review into the care provided to patients treated for acute pancreatitis during a 6 month study period between 1st January and 30th June 2014. This included assessment of care at an organisational level, clinical level within hospitals and external peer review. From a random sample, 712 patients underwent hospital clinician review and 418 patients had external peer review. Overall, we found that there was room for improvement in care in over 50% of patients with acute pancreatitis. Case reviewers felt that efforts to prevent recurrent episodes due to gallstones and alcohol were inadequate as 21% of patients in the study had one or more previous episodes of acute pancreatitis. Aspects of general care where improvements could be made include better antibiotic stewardship; as 1/5 of patients were considered to have been given antibiotics unnecessarily. Overall management of the patients' nutrition was considered adequate by the case reviewers in only 85% of cases. The use of an early warning score was omitted in 31% of emergency department admissions. Recommendations include standardised early warning scoring systems to be used throughout the hospital and commenced in the emergency department. The development of better networking arrangements and regional pancreatitis units, with shared management guidelines, is also essential to improve the coordination of care.


Asunto(s)
Pancreatitis/terapia , Enfermedad Aguda , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Diagnóstico Precoz , Femenino , Cálculos Biliares/complicaciones , Cálculos Biliares/terapia , Humanos , Masculino , Persona de Mediana Edad , Estado Nutricional , Pancreatitis/epidemiología , Pancreatitis/mortalidad , Pancreatitis Alcohólica/prevención & control , Revisión por Pares , Recurrencia , Resultado del Tratamiento , Reino Unido/epidemiología , Adulto Joven
6.
J Card Surg ; 32(8): 494-499, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28691213

RESUMEN

INTRODUCTION: We evaluated the safety profile of a central cardiopulmonary bypass (CPB) cannulation strategy for repair of extent I thoracoabdominal aortic aneurysms (TAAA) with chronic type B dissection in comparison to traditional peripheral CPB cannulation strategies. METHODS: Patients undergoing extent I TAAA repair for chronic type B dissection from 2002 to 2011 were retrospectively reviewed. Patients were grouped by their CPB cannulation strategy. Patients in Group I underwent central aortic cannulation (n = 28) through a left thoracotomy incision. The true lumen of the descending thoracic aorta was cannulated using an echocardiogram-guided Seldinger wire technique. The right atrium was directly accessed for venous drainage. In Group II (n = 31), arterial and venous cannulation of the femoral vessels was achieved using a left-sided groin incision. All patients underwent deep hypothermic circulatory arrest for proximal aortic reconstruction. RESULTS: Preoperative aortic dimensions (6.5 ± 0.79 cm in Group I vs 7.0 ± 1.15 cm in Group II p = 0.8) were similar between groups. CPB time (240 ± 37 min in Group I vs 174 ± 68 min in Group II p < 0.01) was significantly higher in the central cannulation group whereas circulatory arrest times (43 ± 5 min Group I vs 37 ± 7 min in Group II p = 0.1) were similar between the two groups. In-hospital 30-day mortality (N = 0, 0% in Group I; N = 2, 6.5% in Group II), stroke (N = 1, 3.5% in Group I; N = 0, 0% in Group II), paraplegia (N = 1, 3.5% in Group I; N = 1, 3.2% in Group II), reoperation for bleeding (N = 1, 3.5% in Group I; N = 1, 3.2% Group II), tracheostomy rate (N = 2, 7% in Group I; N = 3, 9.7% Group II), and mean length of stay (19 days in Group I vs 17 days in Group II) were similar (p > 0.05). Median follow-up was 3.6 ± 2.0 in Group I and 5.6 ± 2.6 years in Group II. Actuarial survival at 5 years was 84.6 % for Group I and 77.6% for Group II (p = 0.52). CONCLUSIONS: Central true lumen cannulation through a left thoracotomy incision for repair of extent I TAAA with chronic type B dissection is an acceptable approach with equivalent early and midterm outcomes compared to more standard femoral cannulation techniques. It may provide a safe alternative cannulation site for patients with diseased femoral vessels.


Asunto(s)
Aneurisma de la Aorta Torácica/cirugía , Disección Aórtica/cirugía , Puente Cardiopulmonar/métodos , Cateterismo Venoso Central/métodos , Cirugía Asistida por Computador/métodos , Procedimientos Quirúrgicos Vasculares/métodos , Adulto , Anciano , Aorta Torácica , Enfermedad Crónica , Paro Circulatorio Inducido por Hipotermia Profunda , Ecocardiografía , Femenino , Arteria Femoral , Humanos , Masculino , Persona de Mediana Edad , Seguridad , Toracotomía , Resultado del Tratamiento
7.
Diabet Med ; 33(3): 395-403, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26201986

RESUMEN

AIMS: To estimate the healthcare costs attributable to diabetes in Ontario, Canada using a propensity-matched control design and health administrative data from the perspective of a single-payer healthcare system. METHODS: Incident diabetes cases among adults in Ontario were identified from the Ontario Diabetes Database between 2004 and 2012 and matched 1:3 to control subjects without diabetes identified in health administrative databases on the basis of sociodemographics and propensity score. Using a comprehensive source of administrative databases, direct per-person costs (Canadian dollars 2012) were calculated. A cost analysis was performed to calculate the attributable costs of diabetes; i.e. the difference of costs between patients with diabetes and control subjects without diabetes. RESULTS: The study sample included 699 042 incident diabetes cases. The costs attributable to diabetes were greatest in the year after diagnosis [C$3,785 (95% CI 3708, 3862) per person for women and C$3,826 (95% CI 3751, 3901) for men], increasing substantially for older age groups and patients who died during follow-up. After accounting for baseline comorbidities, attributable costs were primarily incurred through inpatient acute hospitalizations, physician visits and prescription medications and assistive devices. CONCLUSIONS: The excess healthcare costs attributable to diabetes are substantial and pose a significant clinical and public health challenge. This burden is an important consideration for decision-makers, particularly given increasing concern over the sustainability of the healthcare system, aging population structure and increasing prevalence of diabetic risk factors, such as obesity.


Asunto(s)
Diabetes Mellitus Tipo 2/economía , Diabetes Mellitus Tipo 2/epidemiología , Costos de la Atención en Salud/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Canadá/epidemiología , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ontario/epidemiología , Prevalencia , Adulto Joven
8.
Vascular ; 24(4): 430-4, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26113574

RESUMEN

OBJECTIVE: This manuscript was written to present a systemic protocol for the prevention, early detection, and treatment of spinal cord ischemia following open and endovascular thoracoabdominal aortic operations. METHODS: This protocol was a collaborative effort between surgeons, anesthesiologists and intensivists. It was implemented at our institution in November 2007. Nurses are trained to prevent, rapidly detect and ultimately aid in the treatment of spinal cord ischemia. RESULTS: Implementation of this protocol has aided in prevention, detection and treatment of spinal cord ischemia in patients after open and endovascular thoracoabdominal aortic operations. CONCLUSION: Standardized care and reliance on trained nursing staff to monitor for symptoms following thoracoabdominal aortic operations are safe and aid in the rapid detection, treatment and reversal of spinal cord ischemia.


Asunto(s)
Aorta Abdominal/cirugía , Aorta Torácica/cirugía , Isquemia de la Médula Espinal/prevención & control , Procedimientos Quirúrgicos Vasculares/métodos , Aorta Abdominal/fisiopatología , Aorta Torácica/fisiopatología , Pérdida de Líquido Cefalorraquídeo , Vías Clínicas , Diagnóstico Precoz , Hemodinámica , Humanos , Comunicación Interdisciplinaria , Grupo de Atención al Paciente , Valor Predictivo de las Pruebas , Flujo Sanguíneo Regional , Isquemia de la Médula Espinal/diagnóstico , Isquemia de la Médula Espinal/etiología , Isquemia de la Médula Espinal/enfermería , Resultado del Tratamiento , Procedimientos Quirúrgicos Vasculares/efectos adversos
9.
Diabet Med ; 32(1): 62-8, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25185888

RESUMEN

AIMS: To determine whether the financial incentives for tight glycaemic control, introduced in the UK as part of a pay-for-performance scheme in 2004, increased the rate at which people with newly diagnosed Type 2 diabetes were started on anti-diabetic medication. METHODS: A secondary analysis of data from the General Practice Research Database for the years 1999-2008 was performed using an interrupted time series analysis of the treatment patterns for people newly diagnosed with Type 2 diabetes (n = 21 197). RESULTS: Overall, the proportion of people with newly diagnosed diabetes managed without medication 12 months after diagnosis was 47% and after 24 months it was 40%. The annual rate of initiation of pharmacological treatment within 12 months of diagnosis was decreasing before the introduction of the pay-for-performance scheme by 1.2% per year (95% CI -2.0, -0.5%) and increased after the introduction of the scheme by 1.9% per year (95% CI 1.1, 2.7%). The equivalent figures for treatment within 24 months of diagnosis were -1.4% (95% CI -2.1, -0.8%) before the scheme was introduced and 1.6% (95% CI 0.8, 2.3%) after the scheme was introduced. CONCLUSION: The present study suggests that the introduction of financial incentives in 2004 has effected a change in the management of people newly diagnosed with diabetes. We conclude that a greater proportion of people with newly diagnosed diabetes are being initiated on medication within 1 and 2 years of diagnosis as a result of the introduction of financial incentives for tight glycaemic control.


Asunto(s)
Diabetes Mellitus Tipo 2/tratamiento farmacológico , Medicina General , Hipoglucemiantes/uso terapéutico , Planes de Incentivos para los Médicos/economía , Pautas de la Práctica en Medicina/economía , Atención Primaria de Salud , Mejoramiento de la Calidad , Diabetes Mellitus Tipo 2/economía , Diabetes Mellitus Tipo 2/epidemiología , Femenino , Medicina General/economía , Hemoglobina Glucada/metabolismo , Humanos , Hipoglucemiantes/economía , Masculino , Atención Primaria de Salud/economía , Calidad de la Atención de Salud , Reembolso de Incentivo , Reino Unido/epidemiología
10.
Vascular ; 23(4): 427-31, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25193357

RESUMEN

Aortic intramural hematoma is a variant of acute aortic dissection characterized by localized hemorrhage into the aortic media causing a separation of the intimal and adventitial layers of the aorta. Malperfusion represents an unusual presenting sign of acute intramural hematoma. Herein, we describe the case of a patient with an acute Type A IMH who developed reversible ischemic spinal cord syndrome after presenting with paraplegia as a consequence of malperfusion. A decision was made to delay operative repair and, instead, emergently apply medical interventions to increase spinal cord perfusion pressure. Medical treatment was effective for the treatment of spinal cord ischemia and operative repair of the intramural hematoma was accomplished after complete recovery of neurologic function. This is the third case ever reported of an intramural hematoma presenting in the form of spinal cord ischemia.


Asunto(s)
Enfermedades de la Aorta/complicaciones , Hematoma/complicaciones , Isquemia de la Médula Espinal/etiología , Enfermedad Aguda , Enfermedades de la Aorta/diagnóstico , Enfermedades de la Aorta/fisiopatología , Enfermedades de la Aorta/cirugía , Aortografía/métodos , Implantación de Prótesis Vascular , Circulación Colateral , Femenino , Hematoma/diagnóstico , Hematoma/fisiopatología , Hematoma/cirugía , Humanos , Persona de Mediana Edad , Paraplejía/etiología , Flujo Sanguíneo Regional , Isquemia de la Médula Espinal/diagnóstico , Isquemia de la Médula Espinal/fisiopatología , Isquemia de la Médula Espinal/terapia , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
11.
Opt Express ; 22(13): 15718-23, 2014 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-24977831

RESUMEN

High speed and high sensitivity time-of-flight lidar is demonstrated by judiciously choosing the repetition rates of a pulsed optical source and the gate rate of a GHz gated single photon detector. Sub-mm ranging can be performed in sub-ms time scales at low received powers. We also demonstrate a method to extend the unambiguous measurement range by simultaneously transmitting multiple optical pulse rates and measuring the return signal with a single detector.

12.
Br J Surg ; 101(12): 1518-31; discussion 1531, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25224741

RESUMEN

BACKGROUND: Excess adiposity is a risk factor for incidence of several gastrointestinal cancers, but it is unclear how these epidemiological observations translate into clinical practice. METHODS: Critical appraisals and updated analyses of published systematic reviews were undertaken to quantify cancer risk associations better and to assess the impact of weight-reducing strategies (surgical and non-surgical) on cancer prevention. RESULTS AND CONCLUSION: A large volume of evidence demonstrates that body mass index (BMI), as an approximation for general adiposity, is a risk factor for the development of oesophageal adenocarcinoma, and colorectal, hepatocellular, gallbladder and pancreatic cancers. A smaller volume of evidence demonstrates that indices of increased central adiposity (such as waist circumference) are associated with increased risk of oesophageal adenocarcinoma and colorectal cancer, but these indices are not necessarily better predictors of risk compared with BMI. Several biological mechanisms may explain these associations but each hypothesis has several caveats and weaknesses. There are few data that convincingly demonstrate significant reductions in risk of gastrointestinal cancers following weight-reducing strategies. In turn, there are many methodological pitfalls in this literature, which prevent conclusive interpretation. The lack of robust intermediary obesity-related biomarkers is an additional unresolved challenge for prevention trials. Novel underpinning mechanisms (for example, local ectopic fat) and more accurate methods to measure these intermediaries are sought and explored as the most optimistic research strategies for the future.


Asunto(s)
Adiposidad/fisiología , Neoplasias del Sistema Digestivo/etiología , Obesidad/complicaciones , Adipoquinas/fisiología , Cirugía Bariátrica , Ensayos Clínicos como Asunto , Femenino , Hormonas Esteroides Gonadales/fisiología , Humanos , Inflamación/fisiopatología , Insulina/fisiología , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/fisiología , Masculino , Lesiones Precancerosas/etiología , Factores de Riesgo , Pérdida de Peso/fisiología
13.
Br J Surg ; 101(6): 605-12, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24652674

RESUMEN

BACKGROUND: The optimal management of colorectal cancer with synchronous liver metastases has not yet been elucidated. The aim of the present study was systematically to review current evidence concerning the timing and sequence of surgical interventions: colon first, liver first or simultaneous. METHODS: A systematic literature review was performed of clinical studies comparing the timing and sequence of surgical interventions in patients with synchronous liver metastases. Retrospective studies were included but case reports and small case series were excluded. Preoperative and intraoperative data, length of hospital stay, perioperative mortality and morbidity, and 1-, 3- and 5-year survival rates were compared. The studies were evaluated according to a modification of the methodological index for non-randomized studies (MINORS) criteria. RESULTS: Eighteen papers were included and 21 entries analysed. Five entries favoured the simultaneous approach regarding duration of procedure, whereas three showed no difference; five entries favoured simultaneous treatment in terms of blood loss, whereas in four there was no difference; and all studies comparing length of hospital stay favoured the simultaneous approach. Five studies favoured the simultaneous approach in terms of morbidity and eight found no difference, and no study demonstrated a difference in perioperative mortality. One study suggested a better 5-year survival rate after staged procedures, and another suggested worse 1-year but better 3- and 5-year survival rates following the simultaneous approach. The median MINORS score was 10, with incomplete follow-up and outcome reporting accounting primarily for low scores. CONCLUSION: None of the three surgical strategies for synchronous colorectal liver metastases appeared inferior to the others.


Asunto(s)
Neoplasias Colorrectales/cirugía , Neoplasias Hepáticas/cirugía , Pérdida de Sangre Quirúrgica/estadística & datos numéricos , Transfusión Sanguínea/estadística & datos numéricos , Neoplasias Colorrectales/mortalidad , Métodos Epidemiológicos , Humanos , Tiempo de Internación , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/secundario , Tempo Operativo , Análisis de Supervivencia , Tiempo de Tratamiento
14.
Ann R Coll Surg Engl ; 106(3): 213-218, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37218655

RESUMEN

INTRODUCTION: Colorectal liver metastases (CRLM) are associated with a high recurrence rate after surgery. There is paucity of high-quality evidence regarding the nature and overall benefit of surveillance after hepatectomy for CRLM. As part of a broader programme of research, this study aimed to assess current strategies for surveillance after liver resection for CRLM and outline surgeons' opinions regarding the benefit of postoperative surveillance. METHODS: An online survey was sent to clinicians performing surgery for CRLM at tertiary hepatobiliary centres in the UK. RESULTS: There were responses from a total of 23 centres (88% response rate); 15/23 centres used standardised surveillance protocols for all patients. Most centres followed patients up at six months, but there is variation in postoperative surveillance at 3, 9, 18 and beyond 60 months. Patient comorbidities, indeterminate findings on imaging, margin status and assessment of recurrence risk were identified as the major factors influencing personalised surveillance strategies. There was clear clinician equipoise regarding the costs and benefits of surveillance. CONCLUSION: There is heterogeneity in postoperative follow-up for CRLM in the UK. High-quality prospective studies and randomised trials are necessary to elucidate the value of postoperative surveillance and identify optimal follow-up strategies.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Hepáticas , Humanos , Estudios Transversales , Estudios Prospectivos , Hepatectomía , Neoplasias Hepáticas/cirugía , Neoplasias Colorrectales/cirugía
15.
Br J Surg ; 100(6): 749-55, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23483534

RESUMEN

BACKGROUND: Bleeding is the leading cause of preventable death after injury. This retrospective study aimed to characterize opportunities for performance improvement (OPIs) identified in patients who died from bleeding and were considered by the quality improvement system of a major trauma centre. METHODS: All trauma deaths in 2006-2010 were discussed at the trauma morbidity and mortality meeting. Deaths from haemorrhage were identified and subjected to qualitative and quantitative evaluation. OPIs were identified and remedial action was taken. RESULTS: During the study interval there were 7511 trauma team activations; 423 patients died. Haemorrhage was the second most common cause of death, in 112 patients, and made a substantial contribution to death in a further 15. For 84 of these 127 patients, a total of 150 OPIs were identified. Most arose in the emergency department, but involved personnel from many departments. Problems with decision-making were more common than errors in technical skill. OPIs frequently involved the decision between surgery, radiology and further investigation. Delayed and inappropriate surgery occurred even when investigation and diagnosis were appropriate. The mortality rate among patients presenting in shock fell significantly over the study interval (P < 0·026). CONCLUSION: Problems with judgement are more common than those of skill. Death from traumatic haemorrhage is associated with identifiable, remediable failures in care. The implementation of a systematic trauma quality improvement system was associated with a fall in the mortality rate among patients presenting in shock.


Asunto(s)
Hemorragia/prevención & control , Heridas y Lesiones/mortalidad , Adulto , Causas de Muerte , Competencia Clínica/normas , Medicina de Emergencia/normas , Femenino , Hemorragia/mortalidad , Humanos , Puntaje de Gravedad del Traumatismo , Juicio , Londres/epidemiología , Masculino , Mejoramiento de la Calidad/organización & administración , Calidad de la Atención de Salud , Estudios Retrospectivos , Centros Traumatológicos/normas , Centros Traumatológicos/estadística & datos numéricos
16.
Phys Rev Lett ; 111(18): 180602, 2013 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-24237499

RESUMEN

We derive dynamical equations for a driven, dissipative quantum system in which the environment-induced relaxation rate is comparable to the Rabi frequency, avoiding assumptions on the frequency dependence of the environmental coupling. When the environmental coupling varies significantly on the scale of the Rabi frequency, secular or rotating wave approximations break down. We avoid these approximations, yielding dynamical steady states which account for the interaction between driven quantum dots and their phonon environment. The theory, which is motivated by recent experimental observations, qualitatively and quantitatively describes the transition from asymmetric unsaturated resonances at weak driving to population inversion at strong driving.

17.
Phys Rev Lett ; 110(4): 046805, 2013 Jan 25.
Artículo en Inglés | MEDLINE | ID: mdl-25166190

RESUMEN

We report the dispersive charge-state readout of a double quantum dot in the few-electron regime using the in situ gate electrodes as sensitive detectors. We benchmark this gate sensing technique against the well established quantum point contact charge detector and find comparable performance with a bandwidth of ∼ 10 MHz and an equivalent charge sensitivity of ∼ 6.3 × 10(-3) e/sqrt[Hz]. Dispersive gate sensing alleviates the burden of separate charge detectors for quantum dot systems and promises to enable readout of qubits in scaled-up arrays.

18.
Epidemiol Psychiatr Sci ; 32: e24, 2023 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-37069827

RESUMEN

AIMS: Suicidal ideation constitutes a central element of most theories of suicide and is the defining facet separating suicide from other causes of death such as accidents. However, despite a high worldwide prevalence, most research has focused on suicidal behaviours, such as completed suicide and suicide attempts, while the greater proportion who experienced ideation, which frequently precedes suicidal behaviour, have received much less attention. This study aims to examine the characteristics of those presenting to EDs with suicidal ideation and quantify the associated risk of suicide and other causes of death. METHODS: Retrospective cohort study was performed based on population-wide health administration data linked to data from the Northern Ireland Registry of Self-Harm and centrally held mortality records from April 2012 to December 2019. Mortality data, coded as suicide, all-external causes and all-cause mortality were analysed using Cox proportional hazards. Additional cause-specific analyses included accidental deaths, deaths from natural causes and drug and alcohol-related causes. RESULTS: There were 1,662,118 individuals aged over 10 years, of whom 15,267 presented to the ED with ideation during the study period. Individuals with ideation had a 10-fold increased risk of death from suicide (hazard ratio [HRadj] = 10.84, 95% confidence interval [CI] 9.18, 12.80) and from all-external causes (HRadj = 10.65, 95% CI 9.66, 11.74) and a threefold risk of death from all-causes (HRadj = 3.01, 95% CI 2.84, 3.20). Further cause-specific analyses indicated that risk of accidental death (HRadj = 8.24, 95% CI 6.29, 10.81), drug-related (HRadj = 15.17, 95% CI 11.36, 20.26) and alcohol-related (HRadj = 10.57, 95% CI 9.07, 12.31) has also significantly increased. There were few socio-demographic and economic characteristics that would identify which of these patients are most at risk of suicide or other causes of death. CONCLUSIONS: Identifying people with suicidal ideation is recognized to be both important but difficult in practice; this study shows that presentations to EDs with self-harm or suicide ideation represent an important potential intervention point for this hard-to-reach vulnerable population. However, and unlike individuals presenting with self-harm, clinical guidelines for the management and recommended best practice and care of these individuals are lacking. Whilst suicide prevention may be the primary focus of interventions aimed at those experiencing self-harm and suicide ideation, death from other preventable causes, especially substance misuse, should also be a cause of concern.


Asunto(s)
Conducta Autodestructiva , Humanos , Anciano , Estudios Retrospectivos , Conducta Autodestructiva/epidemiología , Intento de Suicidio , Ideación Suicida , Servicio de Urgencia en Hospital
19.
J Thorac Cardiovasc Surg ; 165(1): 251-259, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-35715271

RESUMEN

OBJECTIVES: The Ross procedure is a preferred treatment for infants and children with aortic valve disease. Progressive neoaortic root dilation and neoaortic insufficiency can occur after the Ross procedure, and because of the young age of these patients, valve-sparing aortic root replacement procedures have advantages compared with the Bentall procedure. The aim of this study is to describe our experience with different techniques of aortic valve-sparing root replacement in this unique cohort of patients. METHODS: Patients undergoing valve-sparing aortic root replacement with a history of the Ross procedure between January 2001 and March 2021 were identified. A retrospective chart review was performed, and clinical characteristics of these patients were analyzed. The results of different types of valve-sparing aortic root replacement were also compared. RESULTS: Forty-two patients who had previously undergone a Ross procedure in childhood presented for reintervention for neoaortic root or valve pathology. Seventeen of these patients were considered for valve-sparing aortic root replacement but underwent bioprosthetic or mechanical valve replacement, and 25 patients underwent successful valve-sparing aortic root replacement. Patients who underwent valve-sparing aortic root replacement received a traditional aortic root remodeling procedure with or without suture annuloplasty (Yacoub technique, group 1, n = 7), an aortic root reimplantation procedure (David technique, group 2, n = 11), or a modified root remodeling procedure that also used a geometric annuloplasty ring (group 3, n = 7). Patient demographics and comorbidities were similar between groups. Mean follow-up for these 3 cohorts was 14 years, 4 years, and 1 year, respectively. Overall survival was good, with 1 early death due to hemorrhage in group 2 and 1 death due to malignancy in group 1. Eight patients (7 in group 1; 1 in group 2) required subsequent aortic valve replacements due to neoaortic insufficiency, whereas none in group 3 have required any reintervention. Overall, patients requiring valve replacement after valve-sparing aortic root replacement had lower grades of preoperative neoaortic insufficiency and higher grades of postoperative neoaortic insufficiency. Greater than mild postoperative neoaortic insufficiency was associated with the need for subsequent neoaortic valve replacement. CONCLUSIONS: Valve-sparing aortic root replacement is safe in patients with a prior Ross procedure. Reimplantation offers superior durability compared with the traditional remodeling procedure. Greater than mild neoaortic insufficiency on postoperative echocardiogram should prompt additional attempts at valve repair. A modified remodeling procedure with geometric ring annuloplasty that is personalized to the patient's individual anatomy is safe with good short-term results, but longer follow-up is needed.


Asunto(s)
Insuficiencia de la Válvula Aórtica , Prótesis Valvulares Cardíacas , Niño , Lactante , Humanos , Insuficiencia de la Válvula Aórtica/diagnóstico por imagen , Insuficiencia de la Válvula Aórtica/etiología , Insuficiencia de la Válvula Aórtica/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Válvula Aórtica/diagnóstico por imagen , Válvula Aórtica/cirugía , Válvula Aórtica/patología , Prótesis Valvulares Cardíacas/efectos adversos
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