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1.
CJC Open ; 4(3): 337-339, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35386129

RESUMO

We describe a case of Kounis syndrome, an allergic reaction causing coronary artery vasospasm, triggered by a vancomycin infusion, in a healthy 32-year-old man. The patient initially presented with an inguinal abscess requiring intravenous vancomycin. During his third infusion, he developed typical chest pain that resolved with cessation of the infusion. Troponin was elevated, and electrocardiogram showed ST elevation, prompting emergent cardiac catheterization that demonstrated normal coronary arteries. The cause of the myocardial infarction was consistent with Kounis syndrome. Diagnosis of Kounis syndrome is important, as prompt cessation of the offending agent is a priority to reduce further cardiac injury.


Nous décrivons un cas de syndrome de Kounis, une réaction allergique causant un angiospasme coronarien, déclenchée par une perfusion de vancomycine, chez un homme en bonne santé de 32 ans. Le patient a d'abord présenté un abcès inguinal nécessitant l'administration intraveineuse de vancomycine. Au cours de sa troisième perfusion, il a ressenti une douleur type à la poitrine, qui s'est résorbée après l'interruption de la perfusion. Le taux de troponine était élevé, et l'électrocardiogramme montrait une élévation du segment ST, ce qui a mené à un cathétérisme cardiaque d'urgence qui a révélé des artères coronaires normales. La cause de l'infarctus du myocarde cadrait avec le syndrome de Kounis. Le diagnostic de ce syndrome est important, car l'interruption rapide de l'administration de l'agent concerné est prioritaire pour limiter les lésions cardiaques.

2.
Eur Heart J Cardiovasc Imaging ; 22(6): e24-e57, 2021 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-33709114

RESUMO

Cardioaortic embolism to the brain accounts for approximately 15-30% of ischaemic strokes and is often referred to as 'cardioembolic stroke'. One-quarter of patients have more than one cardiac source of embolism and 15% have significant cerebrovascular atherosclerosis. After a careful work-up, up to 30% of ischaemic strokes remain 'cryptogenic', recently redefined as 'embolic strokes of undetermined source'. The diagnosis of cardioembolic stroke remains difficult because a potential cardiac source of embolism does not establish the stroke mechanism. The role of cardiac imaging-transthoracic echocardiography (TTE), transoesophageal echocardiography (TOE), cardiac computed tomography (CT), and magnetic resonance imaging (MRI)-in the diagnosis of potential cardiac sources of embolism, and for therapeutic guidance, is reviewed in these recommendations. Contrast TTE/TOE is highly accurate for detecting left atrial appendage thrombosis in patients with atrial fibrillation, valvular and prosthesis vegetations and thrombosis, aortic arch atheroma, patent foramen ovale, atrial septal defect, and intracardiac tumours. Both CT and MRI are highly accurate for detecting cavity thrombosis, intracardiac tumours, and valvular prosthesis thrombosis. Thus, CT and cardiac magnetic resonance should be considered in addition to TTE and TOE in the detection of a cardiac source of embolism. We propose a diagnostic algorithm where vascular imaging and contrast TTE/TOE are considered the first-line tool in the search for a cardiac source of embolism. CT and MRI are considered as alternative and complementary tools, and their indications are described on a case-by-case approach.


Assuntos
Embolia , Forame Oval Patente , Cardiopatias , Acidente Vascular Cerebral , Canadá , Ecocardiografia , Ecocardiografia Transesofagiana , Embolia/diagnóstico por imagem , Embolia/etiologia , Humanos , Acidente Vascular Cerebral/diagnóstico por imagem
3.
Front Cardiovasc Med ; 6: 151, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31696120

RESUMO

Background: Patients with heart failure (HF) experience a major symptom burden and an overall reduction of quality of life. However, supportive care (SC) remains an under-utilized resource for these patients. Among the many existing barriers to integrating SC into routine care, identifying patients with SC needs remains challenging. The Kansas City Cardiomyopathy Questionnaire (KCCQ) is an important predictor of SC needs in patients with HF. Methods and Results: We used the shortened version KCCQ-12 as a screening tool for SC need in our ambulatory HF patient population using a KCCQ-12 summary score of <29 as the cut-off. Of the 456 patients who completed the KCCQ-12, 41 (9%) were predicted to have SC needs. Demographics, medical history, biochemical parameters, echocardiographic assessment and medical treatment were similar between the two groups of patients. However, patients with KCCQ-12 <29 were more symptomatic based on both New York Heart Association (NYHA) classification and American Heart Association (AHA) staging with a higher prevalence of depression. We established a multidisciplinary SC clinic and the profile and outcomes of patients with SC needs that were referred and followed at our SC clinic were also evaluated. Twenty-three patients were referred to our SC clinic: 2 died before being seen, 1 refused SC and 20 received SC. Of these 20 patients, 11 died and 9 are currently being followed. Median survival after starting the SC clinic is 3 months. In the original SC cohort of 23, 17 patients had available KCCQ-12 summary scores. However, only 6 out of 17 (35%) had KCCQ-12 scores <29, indicating the need for additional assessment tools in this patient population. Conclusions: The magnitude of unmet supportive care needs in patients with HF is significant. While the KCCQ-12 questionnaire is a useful tool to identify patients with SC, serial clinical evaluation, establishment of a SC clinic and prompt referral are essential for patients needing supportive care.

4.
Clin Infect Dis ; 46(1): 37-41, 2008 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-18171211

RESUMO

BACKGROUND: In a recent clinical trial, aspirin therapy was initiated approximately 34 days after the onset of symptoms but did not reduce the risk of embolism in patients with endocarditis. However, it is possible that aspirin used early in the course of the disease may be beneficial. The purpose of the study is to assess the effect of long-term daily aspirin use on the risk of embolic events in patients with infective endocarditis. METHODS: The clinical characteristics and outcomes of patients excluded from the Multi-Centre Aspirin Trial in Infective Endocarditis because of long-term aspirin use (n = 84) were compared with the data for patients randomized to the placebo arm (n = 55). The former patients took aspirin before and during the early stages of infective endocarditis, whereas the latter patients were not exposed to aspirin before and during the entire hospitalization. Logistic modeling was used to assess the effect of long-term aspirin use on embolism and bleeding. RESULTS: There was a trend toward excess bleeding in long-term aspirin recipients, compared with placebo recipients (P = .065). Logistic modeling revealed that long-term aspirin use may be associated with excess bleeding (unadjusted odds ratio, 2.35 [P = .059]; adjusted odds ratio, 2.08 [P = .118]), but it had no impact on the risk of embolic events in either model. CONCLUSIONS: In patients with endocarditis, long-term daily use of aspirin does not reduce the risk of embolic events but may be associated with a higher risk of bleeding. In the acute phase of endocarditis, aspirin should be used with caution.


Assuntos
Aspirina/administração & dosagem , Embolia/prevenção & controle , Endocardite Bacteriana/complicações , Idoso , Aspirina/efeitos adversos , Embolia/etiologia , Endocardite Bacteriana/sangue , Feminino , Hemorragia/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
5.
Am J Cardiol ; 102(1): 1-5, 2008 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-18572027

RESUMO

There is debate about whether therapies that reduce mortality in acute myocardial infarction (AMI) will increase the risk for heart failure. In this study, an inception cohort of patients hospitalized with AMIs from April 1, 1994, to March 31, 1999 (without previous diagnoses of heart failure or myocardial infarction), were followed for a mean of 32 months to explore whether invasive coronary revascularization during the index AMI hospitalization was associated with a trade-off between reduced mortality in the short term and increased heart failure in the intermediate term. Of 13,472 patients (mean age 65 +/- 13 years, 70% men), 3,278 (24%) underwent invasive coronary revascularization during their index AMI hospitalizations. Patients who underwent invasive revascularization during their index AMI hospitalizations were less likely to die (171 of 3,278 [5%] vs 1,688 of 10,194 [17%], p <0.0001) and were less likely to develop heart failure, either during the AMI hospitalization (571 of 3,278 [17%] vs 2,422 of 10,194 [24%], p <0.0001) or after discharge (144 of 3,278 [4%] vs 754 of 10,194 [7%], p <0.0001). These associations persisted after covariate adjustment (for heart failure, hazard ratio 0.68, 95% confidence interval 0.56 to 0.81; for death or heart failure, hazard ratio 0.60, 95% confidence interval 0.51 to 0.70). In conclusion, invasive coronary revascularization during AMI hospitalization is associated with lower rates of death and subsequent heart failure; there is no trade-off of 1 outcome for the other.


Assuntos
Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/etiologia , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/terapia , Revascularização Miocárdica/efeitos adversos , Idoso , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Fatores de Risco
6.
Am J Cardiol ; 97(6): 882-5, 2006 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-16516594

RESUMO

Numerous trials have demonstrated survival benefits using implantable cardioverter defibrillators (ICDs) for primary prevention in selected patients with left ventricular (LV) systolic dysfunction. However, eligibility criteria differed across these trials. Without a risk stratification scheme that clearly identifies those who will benefit, there remains debate about which patients with heart failure (HF) should receive ICDs for primary prevention. To explore the implications of applying different eligibility criteria, this study evaluated all patients seen in a specialized HF clinic from August 2003 to January 2004. Of the 309 consecutive patients in the cohort, 46 were excluded because their HF complicated recent myocardial infarcts (n = 3); their LV ejection fractions were not measured (n = 9); or their HF was due to valvular disease, myocarditis, or peripartum cardiomyopathy (n = 34). The Multicenter Automatic Defibrillator Implantation Trial-II criteria were met by 85 patients (32%), and 134 patients (51%) met the Sudden Cardiac Death in Heart Failure Trial criteria. Even allocation decisions based on randomized trial evidence can have vastly different resource implications depending on which trial is chosen. Thus, the development and validation of a risk stratification scheme to identify those patients most likely to benefit from ICDs for primary prophylaxis should be a research priority.


Assuntos
Morte Súbita Cardíaca/prevenção & controle , Desfibriladores Implantáveis , Insuficiência Cardíaca/terapia , Seleção de Pacientes , Prevenção Primária/instrumentação , Disfunção Ventricular Esquerda/terapia , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Tomada de Decisões , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto/normas , Índice de Gravidade de Doença , Volume Sistólico , Resultado do Tratamento
7.
J Am Coll Cardiol ; 42(8): 1438-45, 2003 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-14563589

RESUMO

OBJECTIVES: We sought to evaluate the common utilization of beta-blockers and angiotensin-converting enzyme (ACE) inhibitors or receptor blockers (RBs) in congestive heart failure (CHF). BACKGROUND: We assessed the association between prescriptions of beta-blockers and ACE inhibitors or RBs within three months after hospitalization and mortality for newly diagnosed CHF in Alberta, Canada seniors (age 65 years and older). METHODS: Administrative hospital discharge abstracts and drug data during October 1, 1994, to December 31, 1999, were analyzed. RESULTS: There were 11854 hospitalizations for newly diagnosed CHF. The use of beta-blockers within three months after hospitalization increased from 7.3% in 1994-1995 to 20.9% in 1999-2000. The use of ACE inhibitor or RBs within three months after hospitalization increased from 31.0% in 1994-1995 to 44.3% in 1999-2000. Adjusted one-year mortality was lower in seniors with prescriptions for beta-blockers (18.2%; 95% confidence interval [CI] 14.2 to 22.2), ACE inhibitors/RBs (22.3%; 95% CI 20.9 to 23.7), or both (16.6%; 95% CI 13.3 to 20.0), compared with those with no prescriptions (29.9%; 95% CI 28.8 to 31.0). Absolute adjusted risk reduction comparing no prescription with prescription of both beta-blockers or ACE inhibitors/RBs was 13.3% for a relative adjusted risk reduction of 44%. CONCLUSIONS: This study of incident CHF hospitalizations among seniors demonstrates an association between decreased mortality and the use of beta-blockers, ACE inhibitors/RBs, or combination of both. The effectiveness of beta-blockers and ACE inhibitors/RBs for CHF should be more broadly tested in clinical trials that recruit older patients and those with diastolic dysfunction.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/mortalidade , Padrões de Prática Médica/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Alberta/epidemiologia , Grupos Diagnósticos Relacionados , Prescrições de Medicamentos/estatística & dados numéricos , Uso de Medicamentos/estatística & dados numéricos , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Alta do Paciente , Fatores de Tempo
8.
J Am Coll Cardiol ; 42(5): 775-80, 2003 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-12957419

RESUMO

OBJECTIVES: This study examined the effect of aspirin on the risk of embolic events in infective endocarditis (IE). BACKGROUND: Embolism is a major complication of IE, and studies in animal models have shown that platelet inhibition with aspirin can lead to more rapid vegetation resolution and a lower rate of embolic events. METHODS: We conducted a randomized, double-blinded, placebo-controlled trial of aspirin treatment (325 mg/day) for four weeks in patients with IE to test the hypothesis that the addition of aspirin would reduce the incidence of clinical systemic embolic events. Patients with perivalvular abscess were excluded. Serial cerebral computed tomograms and transesophageal echocardiograms were obtained in a subset of patients. RESULTS: During the four-year study period, 115 patients were enrolled: 60 assigned to aspirin and 55 assigned to placebo. Embolic events occurred in 17 patients (28.3%) on aspirin and 11 patients (20.0%) on placebo, with an odds ratio (OR) of 1.62 (95% confidence interval [CI] 0.68 to 3.86, p = 0.29). There was a trend toward a higher incidence of bleeding in the patients taking aspirin versus placebo (OR 1.92, 95% CI 0.76 to 4.86, p = 0.075). Development of new intracranial lesions was similar in both groups. Aspirin had no effect on vegetation resolution and valvular dysfunction. CONCLUSIONS: In endocarditis patients already receiving antibiotic treatment, the addition of aspirin does not appear to reduce the risk of embolic events and is likely associated with an increased risk of bleeding. Aspirin is not indicated in the early management of patients with IE.


Assuntos
Aspirina/uso terapêutico , Embolia/etiologia , Embolia/prevenção & controle , Endocardite Bacteriana/complicações , Endocardite Bacteriana/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Idoso , Antibacterianos/uso terapêutico , Aspirina/efeitos adversos , Método Duplo-Cego , Quimioterapia Combinada , Ecocardiografia Transesofagiana , Embolia/diagnóstico , Embolia/epidemiologia , Endocardite Bacteriana/diagnóstico , Feminino , Seguimentos , Hemorragia/induzido quimicamente , Hemorragia/epidemiologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Razão de Chances , Inibidores da Agregação Plaquetária/efeitos adversos , Modelos de Riscos Proporcionais , Fatores de Risco , Índice de Gravidade de Doença , Método Simples-Cego , Tomografia Computadorizada por Raios X , Resultado do Tratamento
9.
Am J Med ; 118(1): 35-44, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15639208

RESUMO

PURPOSE: To assess the effects of hospital care by a specialist or nonspecialist physician, and by volume of treated patients, on mortality among hospitalized patients with newly diagnosed heart failure. METHODS: Data describing heart failure patients in Alberta, Canada, from April 1, 1994, to March 31, 2000, were extracted from hospital abstracts and analyzed using hierarchical regression, with adjustment for patient demographic characteristics, comorbid conditions, physician volume, physician specialty, and hospital volume. RESULTS: There were 16,162 hospital discharges for heart failure. Nonspecialist physicians were predominantly in the two lowest-volume quartiles (93%) and specialists were predominantly in the two highest-volume quartiles (68%). Considering the effects of volume alone and after adjustment for comorbidity, for each 10 additional hospital patients treated by a physician, the odds ratio for in-hospital mortality was 0.97 (95% confidence interval [CI]: 0.95 to 0.98), and the odds ratio for 1-year mortality was 0.99 (95% CI: 0.98 to 0.999). In analyses that considered both volume and specialty, the odds of in-hospital mortality decreased by 4% for each 10 additional in-hospital patients treated by a physician (odds ratio [OR] = 0.96; 95% CI: 0.95 to 0.98). In these same analyses, the odds ratio for in-hospital mortality was 1.32 (95% CI: 1.13 to 1.53) for general practitioners with specialist consultation and 1.32 (95% CI: 1.08 to 1.61) for specialists compared with general practitioners without specialist consultations. At 1 year, mortality was not associated significantly with the volume of in-hospital patients treated, or with the specialty of the treating physician. CONCLUSION: Treatment by high-volume physicians during hospitalization for newly diagnosed heart failure was associated with a decrease in mortality, but these benefits did not persist at 1 year. The increased mortality noted in patients treated by specialists may be due to residual confounding or unmeasured comorbidity.


Assuntos
Cardiologia/estatística & dados numéricos , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/mortalidade , Hospitais/estatística & dados numéricos , Pacientes Internados/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Canadá/epidemiologia , Intervalos de Confiança , Grupos Diagnósticos Relacionados , Feminino , Humanos , Masculino , Medicina/estatística & dados numéricos , Pessoa de Meia-Idade , Razão de Chances , Admissão do Paciente , Índice de Gravidade de Doença , Especialização
10.
Can J Cardiol ; 21(9): 763-80, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16082436

RESUMO

Recognizing the central role of echocardiographic examinations in the assessment of most cardiac disorders and the need to ensure the provision of these services in a highly reliable, timely, economical and safe manner, the Canadian Cardiovascular Society and Canadian Society of Echocardiography undertook a comprehensive review of all aspects influencing the provision of echocardiographic services in Canada. Five regional panels were established to develop preliminary recommendations in the five component areas, which included the echocardiographic examination, the echocardiographic laboratory and report, the physician, the sonographer and indications for examinations. Membership in the panels was structured to recognize the regional professional diversity of individuals involved in the provision of echocardiography. In addition, a focus group of cardiac sonograhers was recruited to review aspects of the document impacting on sonographer responsibilities and qualification. The document is intended to be used as a comprehensive and practical reference for all of those involved in the provision of echocardiography in Canada.


Assuntos
Ecocardiografia , Cardiopatias/diagnóstico por imagem , Sociedades Médicas , Canadá , Ecocardiografia/métodos , Ecocardiografia/normas , Humanos
11.
Arch Intern Med ; 164(7): 769-74, 2004 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-15078647

RESUMO

BACKGROUND: Little is known about the dosing, tolerability, and impact of beta-blockers in nontrial participants. This study was conducted to evaluate the use and outcomes of beta-blockers in a tertiary care heart failure clinic. METHODS: Analysis of prospectively collected data from a cohort of 1041 patients with heart failure seen at the University of Alberta Heart Function Clinic, Edmonton, from September 1, 1989, through July 1, 2001, with objective measurement of ejection fraction at baseline and prospective collection of data at all subsequent clinic visits. RESULTS: Median age at baseline was 69 years; 65% were male; 75% had systolic dysfunction; mean ejection fraction was 33%; and 51% had New York Heart Association class III or IV symptoms. Median duration of follow-up was 32 months (interquartile range, 13-62 months). Overall, 46% of patients received beta-blockers, but only 18% of these were ultimately prescribed the dosages achieved in the trials (mean maximum dosages achieved, 27 mg/d for carvedilol and 81 mg/d for metoprolol tartrate). Of those patients prescribed beta-blockers, 74% continued to receive them during follow-up. Blood pressure, heart rate, and failure symptomatology did not change appreciably before and after beta-blockers were prescribed, or during the upward titration of the dosage. Although our patients were prescribed lower dosages than those used in trials, Cox multivariate regression revealed that beta-blockers were associated with improved survival, even after adjusting for potential confounders including New York Heart Association class, year of prescription, and concomitant medication use (relative risk, 0.63; 95% confidence interval, 0.50-0.81). CONCLUSIONS: The benefits of beta-blockers seen in randomized trials extend to nontrial participants treated in a tertiary care clinic specializing in heart failure. In our cohort of elderly patients with multiple comorbidities, beta-blockers were well tolerated.


Assuntos
Antagonistas Adrenérgicos beta/administração & dosagem , Insuficiência Cardíaca/tratamento farmacológico , Antagonistas Adrenérgicos beta/uso terapêutico , Idoso , Alberta/epidemiologia , Instituições de Assistência Ambulatorial , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/mortalidade , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Resultado do Tratamento , Ultrassonografia
12.
Int J Cardiol ; 96(2): 203-10, 2004 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-15262034

RESUMO

BACKGROUND: We assessed the incidence and prevalence of congestive heart failure (CHF) in patients diagnosed at the time of hospitalization and patients diagnosed in specialists offices without prior hospitalization in order to compare the trends in Canada with previously published trends in the USA and other industrialized countries. METHODS: Administrative data for Alberta, Canada from 1 April 1994 to 31 March 2000. RESULTS: There was a small but statistically significant decline in the age-sex incident and prevalent hospitalization rates for CHF between 1994/1995 (incidence per 1000 of 1.59; 99% CI 1.51, 1.66: prevalence per 1000 of 2.31; 99% CI 2.22, 2.40) and the year 1999/2000 (incidence per 1000 of 1.24; 99% CI 1.18, 1.30: prevalence per 1000 of 1.97; 99% CI 1.89, 2.05). Crude hospitalization rate per 1000 also demonstrated a small but statistically significant decline between 1994/1995 (2.98; 99% CI 2.88, 3.08) and 1999/2000 (2.55; 99% CI 2.46, 2.64). The age-sex incident rates of ambulatory diagnosis of CHF were similar throughout the 1994/1995-1999/2000 time period (0.88; 99% CI 0.82, 0.94 during 1994/1995 and 0.84; 99% CI 0.79, 0.89 during 1999/2000). The crude mortality percentage for incident hospitalization for CHF were similar throughout the 1994/1995-1999/2000 time period (31.0%; 99% CI 28.7, 33.3 during 1994/1995 and 28.6%; 99% CI 26.3, 30.9 during 1999/2000). CONCLUSIONS: We noted a small decrease in the incident, prevalent, and total hospitalizations for CHF in the time period 1994/1995-1999/2000. The decrease was not the result of a substituted increase in ambulatory diagnosis for CHF.


Assuntos
Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/terapia , Mortalidade Hospitalar/tendências , Hospitalização/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Alberta/epidemiologia , Feminino , Insuficiência Cardíaca/diagnóstico , Humanos , Incidência , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Análise de Sobrevida
13.
Can J Cardiol ; 20(2): 213-9, 2004 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15010746

RESUMO

BACKGROUND: The current survival trends in patients with acute myocardial infarction (AMI) are not known. A population-based study using administrative data to examine the short and long term survival of patients after AMI in Alberta between 1994 and 1999 was conducted. METHODS: AMI patients were identified from hospital discharge data. Temporal changes in the adjusted (age, sex, AMI anatomical location and comorbidities) fatality rate were analyzed in 19,928 AMI patients. RESULTS: The age- and sex-adjusted incidence of hospitalization for AMI in Alberta significantly declined from 169.6 per 100,000 population in 1994 to 160.8 per 100,000 in 1999 (P=0.03). The risk-adjusted in-hospital case fatality rate from all causes was 11.4% (95% CI 10.6% to 12.3%) in 1994 versus 9.2% (8.4% to 10.1%) in 1999; the 30-day case fatality rate was 12.6% (11.7% to 13.6%) in 1994 versus 10.1% (9.1% to 11.0%) in 1999; and the one-year case fatality rate was 19.0% (17.8% to 20.1%) in 1994 versus 14.9% (13.8% to 16.0%) in 1999. The percentage of hospitalized AMI patients who underwent coronary angiography within one year after admission rose from 48.2% in 1994 to 52.4% in 1999; percutaneous transluminal coronary angioplasty increased from 25.5% to 35.0% and coronary artery bypass surgery increased from 9.7% to 12.6%. Prescriptions for pharmacological drugs at discharge increased from 1994 to 1999 among patients aged 65 and older: from 29.5% in 1994 to 41.0% in 1999 for beta-blockers, from 5.2% to 18.7% for lipid lowering agents and from 14.0% to 20.5% for angiotensin-converting enzyme inhibitors. INTERPRETATION: There was a modest improvement in patient survival after AMI between 1994 and 1999. The improvements may be associated with increasing use of revascularization and pharmacological therapy provided in the management of AMI.


Assuntos
Infarto do Miocárdio/epidemiologia , Antagonistas Adrenérgicos beta/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Alberta/epidemiologia , Angioplastia Coronária com Balão , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Angiografia Coronária , Ponte de Artéria Coronária , Feminino , Mortalidade Hospitalar , Humanos , Incidência , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/terapia , Readmissão do Paciente , Valor Preditivo dos Testes , Fatores de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
14.
Can J Aging ; 23(3): 255-67, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15660299

RESUMO

We describe the age-specific outcomes for patients hospitalized with newly diagnosed congestive heart failure using administrative hospital abstracts from Alberta, Canada, from April 1, 1994, to March 31, 2000. Seniors (aged 65 years and older) constituted about 85 per cent of the 16,162 patients. Both co-morbidity and severity of illness tended to increase with age. The use of special care unit admissions, coronary artery diagnostic services (cardiac catheterization), and revascularization procedures (percutaneous transluminal coronary angioplasty/stenting, coronary artery bypass surgery) peaked in the 50-to 64-year age group and decreased with increasing age. Specialist/sub-specialist care, prescriptions of beta blockers and angiotensin-converting enzyme inhibitors / angiotensin receptor blockers decreased with age in seniors. Adjusted in-hospital, 1-year mortality and crude, age-specific 5-year mortality were significantly greater in those 75 years and older. Outcomes and process of care in patients with newly diagnosed congestive heart failure were not uniformly distributed with age. The elderly had greater mortality but received less therapy.


Assuntos
Insuficiência Cardíaca/terapia , Hospitalização/estatística & dados numéricos , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Alberta , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
15.
Can J Cardiol ; 30(12): 1706-15, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25475472

RESUMO

Drug-induced heart and vascular disease remains an important health burden. Hydroxychloroquine and its predecessor chloroquine are medications commonly used in the treatment of systemic lupus erythematosus, rheumatoid arthritis, and other connective tissue disorders. Hydroxychloroquine interferes with malarial metabolites, confers immunomodulatory effects, and also affects lysosomal function. Clinical monitoring and early recognition of toxicity is an important management strategy in patients who undergo long-term treatment with hydroxychloroquine. Retinal toxicity, neuromyopathy, and cardiac disease are recognized adverse effects of hydroxychloroquine. Immediate withdrawal of hydroxychloroquine is essential if toxicity is suspected because of the early reversibility of cardiomyopathy. In addition to recommended ophthalmological screening, regular screening with 12-lead electrocardiogram and transthoracic echocardiography to detect conduction system disease and/or biventricular morphological or functional changes should be considered in hydroxychloroquine-treated patients. Cardiac magnetic resonance imaging and endomyocardial biopsy are valuable tools to provide prognostic insights and confirm the diagnosis of hydroxychloroquine-induced cardiomyopathy. In conclusion, chronic use of hydroxychloroquine can result in an acquired lysosomal storage disorder, leading to a drug-induced cardiomyopathy characterized by concentric hypertrophy and conduction abnormalities associated with increased adverse clinical outcomes and mortality.


Assuntos
Cardiomiopatias/induzido quimicamente , Hidroxicloroquina/efeitos adversos , Antirreumáticos/efeitos adversos , Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Biópsia , Cardiomiopatias/diagnóstico , Cardiomiopatias/fisiopatologia , Eletrocardiografia/efeitos dos fármacos , Feminino , Humanos , Hidroxicloroquina/uso terapêutico , Pessoa de Meia-Idade , Miocárdio/patologia
17.
Glob J Health Sci ; 4(6): 109-18, 2012 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-23121747

RESUMO

Nepal and Alberta are literally a world apart. Yet they share a common problem of restricted access to health services in remote and rural areas. In Nepal, urban-rural disparities were one of the main issues in the recent civil war, which ended in 2006. In response to the need for improved health equity in Nepal a dedicated group of Nepali physicians began planning the Patan Academy of Health Sciences (PAHS), a new health sciences university dedicated to the education of rural health providers in the early 2000s. Beginning with a medical school the Patan Academy of Health Sciences uses international help to plan, deliver and assess its curriculum. PAHS developed an International Advisory Board (IAB) attracting international help using a model of broad, intentional recruitment and then on individuals' natural attraction to a clear mission of peace-making through health equity. Such a model provides for flexible recruitment of globally diverse experts, though it risks a lack of coordination. Until recently, the PAHS IAB has not enjoyed significant or formal support from any single international institution. However, an increasing number of the international consultants recruited by PAHS to its International Advisory Board are from the University of Alberta in Edmonton, Alberta, Canada (UAlberta). The number of UAlberta Faculty of Medicine and Dentistry members involved in the project has risen to fifteen, providing a critical mass for a coordinated effort to leverage institutional support for this partnership. This paper describes the organic growth of the UAlberta group supporting PAHS, and the ways in which it supports a sister institution in a developing nation.


Assuntos
Cooperação Internacional , Serviços de Saúde Rural/organização & administração , Faculdades de Medicina/organização & administração , Canadá , Financiamento de Capital , Currículo , Países em Desenvolvimento , Humanos , Nepal , Fatores Socioeconômicos , Desenvolvimento de Pessoal , Estatísticas Vitais
18.
J Pain Symptom Manage ; 42(3): 379-87, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21444186

RESUMO

CONTEXT: Heart failure (HF) is a leading cause of death and disability, and despite optimal care, patients may eventually require palliative care. Little is known about how palliative care questionnaires (the Edmonton Symptom Assessment Scale [ESAS] and the Palliative Performance Scale [PPS]) perform compared with HF assessment using the New York Heart Association (NYHA) functional class and the Kansas City Cardiomyopathy Questionnaire (KCCQ). OBJECTIVES: To assess the utility of a palliative care questionnaire in patients with HF. METHODS: One hundred and five patients (mean age=65 years, 76% male, mean ejection fraction=28%) followed in an HF clinic were surveyed with the NYHA, PPS, ESAS, and KCCQ. RESULTS: The PPS and ESAS were each correlated to the NYHA class (P<0.0001 for both) and the KCCQ score (PPS: R(2)=0.57; ESAS: R(2)=-0.72; both P<0.0001). There were 33 patients who either died (10 deaths) or were hospitalized (26 patients) for more than one year. In addition to age and gender, a higher (worse) ESAS score trended toward significance (P=0.07) and a lower (worse) PPS was a significant (P=0.04) predictor of all-cause hospitalization or death. CONCLUSION: In a cohort of HF patients, we found a modest correlation with NYHA class and KCCQ assessment with the PPS and ESAS, two standard palliative care questionnaires. Given the difficulty in identifying patients with HF eligible for palliative or hospice care, these tools may be of use in clinical practice.


Assuntos
Insuficiência Cardíaca/diagnóstico , Cuidados Paliativos , Qualidade de Vida , Inquéritos e Questionários , Idoso , Feminino , Seguimentos , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
19.
Can J Cardiol ; 27(6): 862-4, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21795015

RESUMO

Guidelines for the provision of echocardiography in Canada were jointly developed and published by the Canadian Cardiovascular Society and the Canadian Society of Echocardiography in 2005. Since their publication, recognition of the importance of echocardiography to patient care has increased, along with the use of focused, point-of-care echocardiography by physicians of diverse clinical backgrounds and variable training. New guidelines for physician training and maintenance of competence in adult echocardiography were required to ensure that physicians providing either focused, point-of-care echocardiography or comprehensive echocardiography are appropriately trained and proficient in their use of echocardiography. In addition, revision of the guidelines was required to address technological advances and the desire to standardize echocardiography training across the country to facilitate the national recognition of a physician's expertise in echocardiography. This paper summarizes the new Guidelines for Physician Training and Maintenance of Competency in Adult Echocardiography, which are considerably more comprehensive than earlier guidelines and address many important issues not previously covered. These guidelines provide a blueprint for physician training despite different clinical backgrounds and help standardize physician training and training programs across the country. Adherence to the guidelines will ensure that physicians providing echocardiography have acquired sufficient expertise required for their specific practice. The document will also provide a framework for other national societies to standardize their training programs in echocardiography and will provide a benchmark by which competency in adult echocardiography may be measured.


Assuntos
Cardiologia/educação , Competência Clínica/normas , Ecocardiografia , Educação Médica Continuada/métodos , Sociedades Médicas , Canadá , Humanos
20.
Eur Heart J ; 27(3): 323-9, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16105850

RESUMO

AIMS: To determine what proportion of patients with heart failure are eligible for cardiac resynchronization therapy (CRT). METHODS AND RESULTS: Eligibility criteria from the trials establishing the efficacy of CRT were applied to two prospective cohorts: the first enrolled patients with newly diagnosed heart failure discharged from 103 hospitals between April 1999 and March 2001 ('the hospital discharge cohort'); the second enrolled patients seen in a specialized clinic between August 2003 and January 2004 ('the specialty clinic cohort'). In the hospital discharge cohort, 73 patients (3% of the 2640 patients with ischaemic or dilated cardiomyopathy and 1% of all 9096 patients with heart failure discharged alive) met trial eligibility criteria: LVEF< or =0.35, QRS > or =120 ms, sinus rhythm, and NYHA class III or IV symptoms despite the treatment with ACE-inhibitor/angiotensin receptor blocker and beta-blocker. In the specialty clinic cohort, 54 patients (21% of the 263 patients with ischaemic or dilated cardiomyopathy and 17% of all 309 patients with heart failure) met these criteria. If persistent symptoms despite taking spironolactone were required for CRT eligibility, then the proportions qualifying dropped to 1% in the hospital discharge cohort and 18% in the specialty clinic cohort. CONCLUSION: Few heart failure patients meet trial eligibility criteria for CRT.


Assuntos
Estimulação Cardíaca Artificial/estatística & dados numéricos , Insuficiência Cardíaca/terapia , Seleção de Pacientes , Antagonistas Adrenérgicos beta/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Cardiomiopatia Dilatada/complicações , Estudos de Coortes , Feminino , Insuficiência Cardíaca/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/complicações , Estudos Prospectivos , Espironolactona/uso terapêutico , Disfunção Ventricular Esquerda/etiologia
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