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1.
BMC Med ; 22(1): 22, 2024 01 23.
Artigo em Inglês | MEDLINE | ID: mdl-38254113

RESUMO

BACKGROUND: This study estimated the prevalence of evidence-based care received by a population-based sample of Australian residents in long-term care (LTC) aged ≥ 65 years in 2021, measured by adherence to clinical practice guideline (CPG) recommendations. METHODS: Sixteen conditions/processes of care amendable to estimating evidence-based care at a population level were identified from prevalence data and CPGs. Candidate recommendations (n = 5609) were extracted from 139 CPGs which were converted to indicators. National experts in each condition rated the indicators via the RAND-UCLA Delphi process. For the 16 conditions, 236 evidence-based care indicators were ratified. A multi-stage sampling of LTC facilities and residents was undertaken. Trained aged-care nurses then undertook manual structured record reviews of care delivered between 1 March and 31 May 2021 (our record review period) to assess adherence with the indicators. RESULTS: Care received by 294 residents with 27,585 care encounters in 25 LTC facilities was evaluated. Residents received care for one to thirteen separate clinical conditions/processes of care (median = 10, mean = 9.7). Adherence to evidence-based care indicators was estimated at 53.2% (95% CI: 48.6, 57.7) ranging from a high of 81.3% (95% CI: 75.6, 86.3) for Bladder and Bowel to a low of 12.2% (95% CI: 1.6, 36.8) for Depression. Six conditions (skin integrity, end-of-life care, infection, sleep, medication, and depression) had less than 50% adherence with indicators. CONCLUSIONS: This is the first study of adherence to evidence-based care for people in LTC using multiple conditions and a standardised method. Vulnerable older people are not receiving evidence-based care for many physical problems, nor care to support their mental health nor for end-of-life care. The six conditions in which adherence with indicators was less than 50% could be the focus of improvement efforts.


Assuntos
Assistência de Longa Duração , Assistência Terminal , Humanos , Idoso , Austrália/epidemiologia , Instalações de Saúde , Qualidade da Assistência à Saúde
2.
Int J Qual Health Care ; 30(10): 823-831, 2018 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-30576556

RESUMO

Most research on health systems examines contemporary problems within one, or at most a few, countries. Breaking with this tradition, we present a series of case studies in a book written by key policymakers, scholars and experts, looking at health systems and their projected successes to 2030. Healthcare Systems: Future Predictions for Global Care includes chapters on 52 individual countries and five regions, covering a total of 152 countries. Synthesised, two key contributions are made in this compendium. First, five trends shaping the future healthcare landscape are analysed: sustainable health systems; the genomics revolution; emerging technologies; global demographics dynamics; and new models of care. Second, nine main themes arise from the chapters: integration of healthcare services; financing, economics and insurance; patient-based care and empowering the patient; universal healthcare; technology and information technology; aging populations; preventative care; accreditation, standards, and policy; and human development, education and training. These five trends and nine themes can be used as a blueprint for change. They can help strengthen the efforts of stakeholders interested in reform, ranging from international bodies such as the World Health Organization, the International Society for Quality in Health Care and the World Bank, through to national bodies such as health departments, quality and safety agencies, non-government organisations (NGO) and other groups with an interest in improving healthcare delivery systems. This compendium offers more than a glimpse into the future of healthcare-it provides a roadmap to help shape thinking about the next generation of caring systems, extrapolated over the next 15 years.


Assuntos
Atenção à Saúde/tendências , Saúde Global/tendências , Desenvolvimento Sustentável , Demografia , Previsões , Genômica , Humanos
3.
JAMA ; 319(11): 1113-1124, 2018 03 20.
Artigo em Inglês | MEDLINE | ID: mdl-29558552

RESUMO

Importance: The quality of routine care for children is rarely assessed, and then usually in single settings or for single clinical conditions. Objective: To estimate the quality of health care for children in Australia in inpatient and ambulatory health care settings. Design, Setting, and Participants: Multistage stratified sample with medical record review to assess adherence with quality indicators extracted from clinical practice guidelines for 17 common, high-burden clinical conditions (noncommunicable [n = 5], mental health [n = 4], acute infection [n = 7], and injury [n = 1]), such as asthma, attention-deficit/hyperactivity disorder, tonsillitis, and head injury. For these 17 conditions, 479 quality indicators were identified, with the number varying by condition, ranging from 9 for eczema to 54 for head injury. Four hundred medical records were targeted for sampling for each of 15 conditions while 267 records were targeted for anxiety and 133 for depression. Within each selected medical record, all visits for the 17 targeted conditions were identified, and separate quality assessments made for each. Care was evaluated for 6689 children 15 years of age and younger who had 15 240 visits to emergency departments, for inpatient admissions, or to pediatricians and general practitioners in selected urban and rural locations in 3 Australian states. These visits generated 160 202 quality indicator assessments. Exposures: Quality indicators were identified through a systematic search of local and international guidelines. Individual indicators were extracted from guidelines and assessed using a 2-stage Delphi process. Main Outcomes and Measures: Quality of care for each clinical condition and overall. Results: Of 6689 children with surveyed medical records, 53.6% were aged 0 to 4 years and 55.5% were male. Adherence to quality of care indicators was estimated at 59.8% (95% CI, 57.5%-62.0%; n = 160 202) across the 17 conditions, ranging from a high of 88.8% (95% CI, 83.0%-93.1%; n = 2638) for autism to a low of 43.5% (95% CI, 36.8%-50.4%; n = 2354) for tonsillitis. The mean adherence by condition category was estimated as 60.5% (95% CI, 57.2%-63.8%; n = 41 265) for noncommunicable conditions (range, 52.8%-75.8%); 82.4% (95% CI, 79.0%-85.5%; n = 14 622) for mental health conditions (range, 71.5%-88.8%); 56.3% (95% CI, 53.2%-59.4%; n = 94 037) for acute infections (range, 43.5%-69.8%); and 78.3% (95% CI, 75.1%-81.2%; n = 10 278) for injury. Conclusions and Relevance: Among a sample of children receiving care in Australia in 2012-2013, the overall prevalence of adherence to quality of care indicators for important conditions was not high. For many of these conditions, the quality of care may be inadequate.


Assuntos
Serviços de Saúde da Criança/normas , Fidelidade a Diretrizes/estatística & dados numéricos , Indicadores de Qualidade em Assistência à Saúde , Qualidade da Assistência à Saúde/estatística & dados numéricos , Adolescente , Austrália , Criança , Pré-Escolar , Gerenciamento Clínico , Feminino , Humanos , Lactente , Recém-Nascido , Masculino
4.
J Paediatr Child Health ; 48(6): 483-9, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22111981

RESUMO

AIM: To investigate whether recent Australian practice conforms to the draft 2009 National Health and Medical Research Council (NHMRC) guidelines on the management of attention deficit hyperactivity disorder. METHODS: Data from the 2007 Special Review on Attention Deficit Hyperactivity Disorder in Children and Adolescents in New South Wales (NSW) were examined. RESULTS: Two hundred seven approved stimulant prescribers in NSW responded to a detailed survey on treatment practice (including 121 paediatricians and 67 psychiatrists). Overall, the practice identified in this survey of NSW approved stimulant prescribers was consistent with that recommended in the draft NHMRC guidelines. Paediatricians were more likely to inform families of developmental therapies. Most prescribers (67%) considered stimulants to be the first line of treatment for at least half of their patients. Psychiatrists were more likely to use stimulants as first-line treatments, while those recently qualified were less likely to prescribe. Half of the prescribers were willing to consider prescribing for children 4 years of age and younger. Paediatricians were more likely to consider prescribing to this age group, while those recently qualified were less likely. There were no significant differences in prescribing practice between child and adult psychiatrists. Most prescribers (67-97%) routinely monitored patients on stimulants for weight, height, blood pressure and academic progress. Psychiatrists were less likely to review these parameters than paediatricians, with this difference being largely due to adult psychiatrists. CONCLUSIONS: There are significant differences in prescribing practice between paediatricians and psychiatrists. These variations may reflect differing training programs and patient populations, and merit close consideration in any review arising from the publication of the recent NHMRC guideline.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/terapia , Fidelidade a Diretrizes/estatística & dados numéricos , Padrões de Prática Médica/estatística & dados numéricos , Adolescente , Adulto , Idoso , Terapia Comportamental/estatística & dados numéricos , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Terapia Combinada/estatística & dados numéricos , Monitoramento de Medicamentos/estatística & dados numéricos , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Modelos Logísticos , Masculino , Auditoria Médica , Pessoa de Meia-Idade , New South Wales , Pediatria/normas , Pediatria/estatística & dados numéricos , Guias de Prática Clínica como Assunto , Psiquiatria/normas , Psiquiatria/estatística & dados numéricos
5.
Med J Aust ; 195(10): 615-9, 2011 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-22107015

RESUMO

OBJECTIVE: To report outcomes from the first 2 years of the National Hand Hygiene Initiative (NHHI), a hand hygiene (HH) culture-change program implemented in all Australian hospitals to improve health care workers' HH compliance, increase use of alcohol-based hand rub and reduce the risk of health care-associated infections. DESIGN AND SETTING: The HH program was based on the World Health Organization 5 Moments for Hand Hygiene program, and included standardised educational materials and a regular audit system of HH compliance. The NHHI was implemented in January 2009. MAIN OUTCOME MEASURES: HH compliance and Staphylococcus aureus bacteraemia (SAB) incidence rates 2 years after NHHI implementation. RESULTS: In late 2010, the overall national HH compliance rate in 521 hospitals was 68.3% (168,641/246,931 moments), but HH compliance before patient contact was 10%-15% lower than after patient contact. Among sites new to the 5 Moments audit tool, HH compliance improved from 43.6% (6431/14,740) at baseline to 67.8% (106,851/157,708) (P < 0.001). HH compliance was highest among nursing staff (73.6%; 116,851/158,732) and worst among medical staff (52.3%; 17,897/34,224) after 2 years. National incidence rates of methicillin-resistant SAB were stable for the 18 months before the NHHI (July 2007-2008; P = 0.366), but declined after implementation (2009-2010; P = 0.008). Annual national rates of hospital-onset SAB per 10,000 patient-days were 1.004 and 0.995 in 2009 and 2010, respectively, of which about 75% were due to methicillin-susceptible S. aureus. CONCLUSIONS: The NHHI was associated with widespread sustained improvements in HH compliance among Australian health care workers. Although specific linking of SAB rate changes to the NHHI was not possible, further declines in national SAB rates are expected.


Assuntos
Anti-Infecciosos/farmacologia , Infecção Hospitalar/prevenção & controle , Fidelidade a Diretrizes , Desinfecção das Mãos/normas , Infecções Estafilocócicas/prevenção & controle , Austrália , Bacteriemia/epidemiologia , Bacteriemia/prevenção & controle , Feminino , Humanos , Higiene/normas , Controle de Infecções/métodos , Controle de Infecções/normas , Capacitação em Serviço/métodos , Capacitação em Serviço/normas , Masculino , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Avaliação de Resultados em Cuidados de Saúde , Recursos Humanos em Hospital/estatística & dados numéricos , Infecções Estafilocócicas/epidemiologia , Organização Mundial da Saúde
6.
Heart Lung Circ ; 20(11): 704-11, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21872527

RESUMO

BACKGROUND: Aortic arch replacement is a complicated and high risk procedure. There have been many advances over recent years. We review the changes in our unit's techniques and outcomes over the past 22 years. METHODS: Data were collated from databases and medical records for all patients who underwent aortic arch replacement surgery from January 1989 to December 2010. The patients were divided into two groups - Group A (1989-2005) and Group B (2006-2010). Data were analysed to compare early and late series patients' outcomes. Logistic regression was used to identify variables that predicted mortality. RESULTS: Seventy-five eligible patients (56 males; mean age: 57.5 years; Group A: 40, Group B 35) were identified. There were great changes in the technique and the methods of cerebral protection. The overall mortality rate was 30.7% - Group A: 50% and Group B: 8.6% (p<0.001). Overall permanent neurological dysfunction was 23.7% - Group A: 40% and Group B: 11.8% (p=0.012). Cardiovascular disease and circulatory arrest time were significant predictors of mortality. CONCLUSIONS: Increased experience and volume and advances in techniques over 22 years have resulted in major improvements in outcomes for patients having aortic arch replacement, allowing the procedure to be performed with greatly improved outcomes.


Assuntos
Aorta Torácica/metabolismo , Aorta Torácica/cirurgia , Aneurisma Aórtico/mortalidade , Aneurisma Aórtico/cirurgia , Adulto , Idoso , Angioplastia/história , Feminino , História do Século XX , História do Século XXI , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
7.
Heart Lung Circ ; 19(8): 445-52, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20418159

RESUMO

BACKGROUND: The effects of off-pump coronary artery bypass (OPCAB) surgery on endothelial cell activation are poorly understood. Endothelial cell adhesion molecules (CAMs) are expressed and released when the endothelium is activated. We compared plasma CAMs (E-selectin, ICAM-1 and VCAM-1) and HUVEC expression of the same CAMs when exposed to plasma taken before, during and after OPCAB or on-pump coronary surgery (CABG). METHODS: Patients undergoing first time CABG (n=10) or OPCAB (n=10) had 6 blood samples taken before surgery and up to 24h post-operatively. Plasma samples were assayed for E-selectin, ICAM-1 and VCAM-1. The same plasma samples were exposed to HUVEC cultures and cell-surface expression of E-selectin, ICAM-1 and VCAM-1 measured. Data are expressed as mean+/-SEM of n subjects. RESULTS: Plasma E-selectin was unchanged. Plasma ICAM-1 and VCAM-1 were elevated 24h post-operatively in both groups (P<0.01), with no differences between the groups. Twenty-four hours post-OPCAB plasma increased basal and IL-1beta induced expression of endothelial VCAM-1 by 133+/-16% and 140+/-27% (P<0.05), respectively. Plasma taken 3h post-CABG decreased endothelial VCAM-1 expression by 76+/-10% (P<0.05). Peri-operative plasma had no effect on endothelial expression of E-selectin or ICAM-1 in either group. CONCLUSIONS: OPCAB and CABG with CPB appear to generate qualitatively different inflammatory responses with respect to endothelial activation, which may have clinical implications.


Assuntos
Ponte de Artéria Coronária sem Circulação Extracorpórea/efeitos adversos , Doença da Artéria Coronariana/patologia , Endotélio Vascular/patologia , Proteína C-Reativa , Débito Cardíaco , Moléculas de Adesão Celular , Doença da Artéria Coronariana/cirurgia , Selectina E , Feminino , Humanos , Inflamação/fisiopatologia , Molécula 1 de Adesão Intercelular , Interleucina-6 , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Tempo , Molécula 1 de Adesão de Célula Vascular
8.
Heart Lung Circ ; 18(2): 123-30, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19081297

RESUMO

BACKGROUND: With the increasing use of OPCAB, potentially devastating thromboembolic events, including graft thrombosis may become increasingly evident. We present a study of the quantitative and temporal differences of the coagulation system, fibrinolysis and platelet activation after coronary artery surgery with or without cardiopulmonary bypass. METHODS: Patients undergoing on-pump CABG (n=10) or OPCAB (n=10) had six blood samples taken before surgery and up to 24h post-operatively. Activation of the coagulation cascade (tissue factor pathway-factor VIIa), endothelial injury (von Willebrand Factor antigen), thrombin generation (prothrombin fragments FI+II), fibrinolysis (decreased plasminogen levels), fibrin degradation (D-Dimer), platelet counts and platelet activation (soluble P-selectin) were quantified. RESULTS: CABG caused earlier and more significant generation of thrombin, however OPCAB caused a late and sustained generation of thrombin. CABG caused intraoperative activation of fibrinolysis and fibrin degradation, however, at 24h these parameters were equally elevated in both groups. Platelet activation was significant in the CABG group, but did not occur in the OPCAB group. CONCLUSIONS: Late thrombin generation and reduced fibrinolysis in the presence of intact, functioning platelets may contribute to adverse thromboembolic events after OPCAB surgery. Thromboembolic prophylaxis and anti-platelet therapy may need to be more aggressive after OPCAB surgery.


Assuntos
Ponte de Artéria Coronária sem Circulação Extracorpórea , Fibrinólise , Ativação Plaquetária , Tromboembolia/sangue , Tromboembolia/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Fatores de Coagulação Sanguínea/análise , Fatores de Coagulação Sanguínea/metabolismo , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Produtos de Degradação da Fibrina e do Fibrinogênio/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Selectina-P/sangue
9.
ANZ J Surg ; 77(11): 974-80, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17931260

RESUMO

BACKGROUND: Surgical therapy for the thoracic aorta carries a high morbidity and mortality. Endovascular therapy for aneurysms and its adaptation to the thoracic aorta over the past 10 years is an exciting advance. This is a retrospective review of endovascular grafting of the thoracic aorta during the past decade at Royal Prince Alfred Hospital and the outcomes achieved over this period. METHODS: A retrospective review of all patients at our institution who underwent endovascular grafting of the thoracic aorta between March 1995 and March 2005 was carried out. Data were analysed using Stata version 8.0 (Stata corporation, College Station, TX, USA). RESULTS: Sixty-five patients underwent endovascular stent grafting of the thoracic aorta. The indications were degenerative aneurysm (31), Stanford type B dissection (23) both acute (12) and chronic (11), traumatic transection (9) and penetrating ulcer (2). There were no conversions to open repair. Twenty-two patients required additional procedures, six of which were unplanned. The median age was 65 (range 18-85), 68% of patients were men. The median procedure time was 115 min (range 55-240 min). Mean hospital stay was 9.8+/-7.3 days and high dependency/intensive care unit stay 1.5+/-3.2 days. Thirty-day mortality was 0 in 41 for elective cases (one patient (2.5%) died 37 days post-procedure) and 12% (3 of 25) for emergency cases. Complications occurred in 20 of 41 (49%) elective cases and 14 of 24 (58%) emergency cases within the first 30 days. The most frequent major complications were neurological including paraplegia (transient 2 of 65, permanent (2 of 65)) and stroke (4 of 65). Other complications included endoleak (12 of 65), acute renal failure (1 of 65), and brachial artery false aneurysm (1 of 65). The mean length of follow up was 22.5 months (range, 1-97 months). Six patients required further endovascular procedures for persistent endoleak or ongoing perfusion of chronic dissection. Late deaths (>30 days) related to the endovascular treatment occurred in two patients (3%). CONCLUSION: Endovascular grafting of the thoracic aorta is an evolution in the treatment of thoracic aortic pathology. The results of elective endovascular grafts were acceptable. Emergency procedures had a higher incidence of complications and death. Improvement in graft technology, design and deployment are required.


Assuntos
Aneurisma da Aorta Torácica/cirurgia , Implante de Prótese Vascular/métodos , Aneurisma da Aorta Torácica/diagnóstico por imagem , Aortografia , Meios de Contraste , Feminino , Fluoroscopia , Humanos , Iohexol/análogos & derivados , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Stents , Tomografia Computadorizada por Raios X , Resultado do Tratamento
11.
Asian Cardiovasc Thorac Ann ; 13(2): 119-26, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15905338

RESUMO

Corynebacterium diphtheriae endocarditis was thought to be a rare disease. We reviewed our experience in four cases of this disease treated over a period of 10 years. Seventy cases reported in literature were reviewed. The outcome is good if cases are carefully selected for medical or surgical treatment. We conclude that infective endocarditis due to C. diphtheriae, is perhaps more common than expected. It may be recognized more frequently and on occasion may be an aggressive disease. Those patients with an abnormal valve (including prosthetic valves) should be subjected to surgery at the earliest available opportunity, whereas patients with normal valves may be carefully watched during the course of medical treatment as long as immediate surgery can occur if needed.


Assuntos
Corynebacterium diphtheriae , Endocardite Bacteriana/cirurgia , Adolescente , Adulto , Criança , Pré-Escolar , Comorbidade , Endocardite Bacteriana/diagnóstico , Endocardite Bacteriana/epidemiologia , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/microbiologia , Doenças das Valvas Cardíacas/cirurgia , Humanos , Pessoa de Meia-Idade , Valva Mitral/patologia , Insuficiência da Valva Mitral/epidemiologia , Insuficiência da Valva Mitral/microbiologia , Estudos Retrospectivos , Fatores de Risco , Ultrassonografia , Trombose Venosa/epidemiologia , Trombose Venosa/microbiologia
12.
Atherosclerosis ; 168(2): 389-96, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12801624

RESUMO

BACKGROUND: Molecules which egress from atherosclerotic arteries may function as plasma markers of arterial pathology, but such egress has not been proven with living human coronary arteries. We hypothesised that proteins eluting from the arterial wall may discriminate between atherosclerotic and non-atherosclerotic coronary arteries. METHODS AND RESULTS: During cardiac bypass surgery, 155 sequential fractions of antegradely flushed coronary cardioplegia solution were collected by balloon-cuffed catheter from the coronary sinus in subjects with angiographically extensive (n=30) or minor (n=7) coronary disease. Although plasma was the major source of protein in heavily blood-contaminated samples, under conditions of low blood contamination (<0.5 mg/ml red cell Haemoglobin) coronary circulation-derived protein was detected. N-terminal sequencing of a major 40 kDa band detected by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated 100% homology with beta chain of Haptoglobin (Hpt). Comparison of perfusates from patients with and without significant coronary disease found that the concentration of Hpt was markedly increased in perfusates from atherosclerotic coronary arteries (0.099+/-0.017 microg Hpt/microg Hb) relative to controls (0.016+/-0.008 microg Hpt/microg Hb, P=0.0027). Analysis of peripheral plasma samples of the same subjects, and of a separate cohort of patients, confirmed greater Hpt in those with angiographic coronary disease than in those without disease. CONCLUSIONS: Proteins such as Hpt elute from the human coronary vascular bed and may differentiate between arteries with minor or extensive atherosclerosis. Although the suitability of Hpt as a circulating plasma marker for atherosclerosis remains to be established, the approach used in the present study may permit identification of diverse plasma-detectable markers of atherosclerosis, and the subsequent non-invasive evaluation of in vivo arterial pathology.


Assuntos
Arteriosclerose/sangue , Vasos Coronários , Haptoglobinas/metabolismo , Idoso , Biomarcadores , Proteínas Sanguíneas/metabolismo , Estudos de Casos e Controles , Estudos de Coortes , Eletroforese em Gel de Poliacrilamida , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Perfusão , Isoformas de Proteínas/metabolismo
13.
J Thorac Cardiovasc Surg ; 124(4): 758-67, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12324734

RESUMO

OBJECTIVE: Endothelial cell dysfunction has been implicated in the inflammatory response to cardiopulmonary bypass, and the upregulation of endothelial cell expression of adhesion molecules might promote leukocyte extravasation in vivo. Soluble endothelial cell adhesion molecules are increased after bypass. The aim of this study was to investigate the relationship between endothelial cell-surface expression of adhesion molecules and their concentration in plasma after coronary artery bypass grafting. METHODS: Ten patients undergoing coronary artery bypass with cardiopulmonary bypass had 5 plasma samples taken at defined intervals before, during, and after cardiopulmonary bypass. Plasma was incubated with human umbilical vein endothelial cell monolayers, and expression of E-selectin, intercellular adhesion molecule 1, and vascular cell adhesion molecule 1 on the surface of human umbilical vein endothelial cell monolayers was measured by means of enzyme-linked immunosorbent assay. Plasma soluble adhesion molecules, C-reactive protein, interleukin 8, interleukin 10, transforming growth factor beta1, and neutrophil counts were determined for each patient. RESULTS: Markers typical of acute inflammation (ie, interleukin 8, neutrophils, and C-reactive protein) were all increased after bypass. Soluble plasma intercellular and vascular cell adhesion molecule 1 (but not E-selectin) were increased after bypass. However, endothelial cell expression of vascular cell adhesion molecule 1 and intercellular adhesion molecule 1 (but not E-selectin) were significantly decreased by exposure to postbypass plasma. Additionally, postbypass plasma inhibited interleukin 1beta-stimulated endothelial cell expression of vascular cell and intercellular adhesion molecule 1. Interleukin 10 and transforming growth factor beta1, both of which are known to inhibit endothelial cell adhesion molecule expression, were respectively increased 10-fold and 3-fold (P <.05) after bypass. CONCLUSIONS: Despite containing increased soluble intercellular and vascular cell adhesion molecule 1, postbypass plasma inhibits endothelial cell expression of intercellular and vascular cell adhesion molecule 1. Upregulated vascular expression of adhesion molecules might not be essential for endothelial activation after bypass.


Assuntos
Ponte Cardiopulmonar , Selectina E/sangue , Endotélio Vascular/metabolismo , Molécula 1 de Adesão Intercelular/sangue , Interleucina-1/sangue , Interleucina-8/sangue , Molécula 1 de Adesão de Célula Vascular/sangue , Ponte de Artéria Coronária , Doença da Artéria Coronariana/cirurgia , Humanos , Molécula 1 de Adesão Intercelular/metabolismo , Regulação para Cima , Molécula 1 de Adesão de Célula Vascular/metabolismo
14.
Ann Thorac Surg ; 75(1): 268-70, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12537228

RESUMO

Quadriplegia developed suddenly 1 month after coarctation repair in a 53-year-old human. Cervical cord ischemia caused by thrombosis in an enlarged anterior spinal artery collateral was diagnosed on magnetic resonance scan and spinal angiography. After urgent cord decompression and anticoagulation there was neurologic improvement over a period of several months. Urgent investigation of neurologic abnormalities occurring late after coarctation repair may enable intervention to avert permanent neurologic sequelae.


Assuntos
Coartação Aórtica/complicações , Quadriplegia/etiologia , Isquemia do Cordão Espinal/etiologia , Angiografia , Coartação Aórtica/cirurgia , Circulação Colateral , Descompressão Cirúrgica , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Quadriplegia/terapia , Trombose/complicações
15.
Ann Thorac Surg ; 75(5): 1400-5, 2003 May.
Artigo em Inglês | MEDLINE | ID: mdl-12735553

RESUMO

BACKGROUND: Emergency coronary artery bypass grafting (CABG) is occasionally necessary for failed percutaneous transluminal coronary angioplasty (PTCA). The aim of this study was to assess the outcome of patients receiving emergency CABG after unsuccessful PTCA over a 15-year study period. METHODS: From January 1982 through December 1996, 74 patients underwent emergency CABG after unsuccessful PTCA (crash group). This group was compared with a matched group of 74 patients having primary elective CABG (control group). RESULTS: All 74 crash group patients were to have PTCA of one coronary system. After PTCA failure, 58 patients (78.3%) developed electrocardiographic changes of evolving acute myocardial infarction (AMI). The overall rate of AMI was 8.1% for the crash group and 2.7% for the control group. Two patients in the crash group died, with no deaths in the control group. There was no significant difference between mean in-hospital length of stay. CONCLUSIONS: With prompt, aggressive, and complete myocardial revascularization, patients who required emergency CABG after PTCA failure had an outcome not significantly different from that of patients having elective CABG.


Assuntos
Angioplastia Coronária com Balão , Ponte de Artéria Coronária , Adulto , Idoso , Idoso de 80 Anos ou mais , Angioplastia Coronária com Balão/efeitos adversos , Ponte Cardiopulmonar , Ponte de Artéria Coronária/efeitos adversos , Eletrocardiografia , Emergências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Reperfusão Miocárdica , Estudos Retrospectivos , Falha de Tratamento , Resultado do Tratamento
16.
J Am Soc Echocardiogr ; 16(2): 188-90, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12574748

RESUMO

Hemolytic anemia is a well-known but uncommon complication in patients with prosthetic heart valves. It is most commonly a result of prosthetic valve dysfunction, periprosthetic valvular regurgitation, or both. We report a case of a 41-year-old man who had a previous aortic valve and root replacement for acute proximal aortic dissection, now presenting with hemolytic anemia. This was a result of flow obstruction at the distal anastomosis of the aortic conduit by the presence of multiple dissection flaps resulting in severe flow turbulence. Although the pathology was at the blind spot for transesophageal echocardiography, the dissection flaps, the flow turbulence, and the degree of obstruction were well-demonstrated by this technique after careful manipulation of the probe and a high index of suspicion.


Assuntos
Anemia Hemolítica/etiologia , Valva Aórtica , Próteses Valvulares Cardíacas/efeitos adversos , Adulto , Dissecção Aórtica/cirurgia , Aneurisma Aórtico/cirurgia , Ecocardiografia Transesofagiana , Hemólise , Humanos , Masculino
17.
J Heart Valve Dis ; 11(3): 419-23, 2002 May.
Artigo em Inglês | MEDLINE | ID: mdl-12056737

RESUMO

BACKGROUND AND AIM OF THE STUDY: The study aim was to assess the risk of reoperation for patients with a failing stented tissue valve. METHODS: Between 1980 and 1999, 259 patients (118 males, 141 females; mean age 60.1+/-15.4 years) underwent redo valve replacement to replace a failing stented tissue valve. Of these patients, 94 (36.3%) underwent redo aortic valve replacement (AVR), 105 (40.5%) redo mitral valve replacement (MVR), and 60 (23.2%) redo aortic and mitral valve replacement (DVR). Twenty patients (7.7%) had previous coronary artery bypass grafting (CABG); further CABG were performed in 32 cases (12.4%). Preoperatively, 216 patients (83.3%) were in NYHA functional class III or IV. RESULTS: The early mortality was (6.5%; n = 17), including three patients who had AVR, five DVR, and nine MVR. A higher preoperative NHYA status (p <0.0004) and emergency surgery (p <0.0001) were significantly associated with an increased risk of operative death (univariate analysis). Age at surgery (p = 0.45), previous CABG (p = 0.45), position of the valve replaced (p = 0.2), type of implant (p = 0.06) and presence of coronary artery disease (p = 0.51) were not associated with a significant risk of operative mortality. Including those patients who died, 88 (34.0%) experienced a peri- or postoperative complication, seven of which (2.7%) were permanent. CONCLUSION: A failing tissue valve can be replaced, with acceptable operative mortality and morbidity. The choice of valve is a balance of its advantages and disadvantages, and these must be discussed with the patient. It appears, however, that the trend towards reducing the age at which tissue valve implantation is performed may be justified.


Assuntos
Valva Aórtica/cirurgia , Valva Mitral/cirurgia , Reoperação , Adulto , Idoso , Austrália/epidemiologia , Implante de Prótese Vascular , Ponte de Artéria Coronária , Feminino , Doenças das Valvas Cardíacas/epidemiologia , Doenças das Valvas Cardíacas/cirurgia , Próteses Valvulares Cardíacas , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Morbidade , Reoperação/mortalidade , Estudos Retrospectivos , Fatores de Risco , Stents , Análise de Sobrevida , Falha de Tratamento , Reino Unido/epidemiologia
18.
Int J Cardiol ; 168(6): 5378-84, 2013 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-24083884

RESUMO

AIMS: The Warfarin Self-Management Anticoagulation Research Trial (Warfarin SMART) was designed to determine whether patients self-managing warfarin (PSM) using the CoaguChek device and a dosing algorithm developed for the trial could keep the INR (International Normalised Ratio) test in target range at least as often as patients managed by usual care by the family doctor or hospital clinic. METHODS AND RESULTS: 310 patients were randomly assigned to PSM or usual care. The PSM group was trained to perform home INR testing and warfarin dosing using a validated ColourChart algorithm. The primary endpoint was the proportion of times over 12 months that a monthly, blinded "outcome INR test", measured in a central laboratory, was outside the patient's target therapeutic range. The rate of out-of-range outcome INRs was lower in PSM, and non-inferior to the usual care group (PSM: 36% vs. usual care: 41%, P<0.001 for non-inferiority; P=0.08 for superiority in closed-loop testing). The deviations from the patient's midpoint of target INR range (P=0.02) and number of extreme INRs (P=0.03) were significantly less in the PSM group than the usual-care group. There was no significant difference between groups in rates of bleeding or thrombotic adverse events. CONCLUSION: Patient self-management performed at least as well as usual care in maintaining the INR within the target range, without any safety concerns. This treatment modality for the long-term use of warfarin has the potential to change current local and international practice.


Assuntos
Anticoagulantes/administração & dosagem , Anticoagulantes/efeitos adversos , Hemorragia/induzido quimicamente , Coeficiente Internacional Normatizado/métodos , Autoadministração/métodos , Varfarina/administração & dosagem , Varfarina/efeitos adversos , Idoso , Algoritmos , Coagulação Sanguínea/efeitos dos fármacos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Autocuidado/métodos , Resultado do Tratamento
19.
ANZ J Surg ; 83(11): 827-32, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23782742

RESUMO

BACKGROUND: Aortic arch replacement is a potentially high-risk operation and in the re-operative setting has been found to be a risk factor for poor outcome, yet there is a dearth of published data specifically on this topic. The aim of the study was to review our unit's outcomes in this re-operative setting. METHOD: Data were collated for all patients who underwent aortic arch replacement surgery after previous cardiac surgery from January 1988 to November 2011. The patients were divided based primarily on elective versus non-elective and also early (≤2005) and late (≥2006) series. RESULTS: Twenty-seven eligible patients (22 male; median age: 53.0 years; elective: 14, non-elective: 13) were identified. There was a mean period of 14.5 years between the first operation and the subsequent aortic arch replacement. The overall 30-day mortality rate was 22.2% - 0% elective and 46.2% non-elective (P = 0.004). Overall permanent neurological dysfunction was 21.7% - 28.6% elective and 11.1% non-elective (P = 0.463). There were 11 early-series patients and 16 late-series patients. For early-series patients, 90.9% were non-elective versus 18.8% in the late-series patients. The 30-day mortality rate was 54.5% early series versus 0% late series. CONCLUSION: Aortic arch replacement is high risk in the re-operative setting. These risks are even greater for non-elective procedures. This highlights the need for aggressive first-time surgery to reduce re-operative procedures and good long-term follow-up programmes to allow elective procedures if required.


Assuntos
Aorta Torácica/cirurgia , Implante de Prótese Vascular , Adulto , Implante de Prótese Vascular/mortalidade , Procedimentos Cirúrgicos Cardíacos , Feminino , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Resultado do Tratamento
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