Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 10 de 10
Mais filtros

Base de dados
Intervalo de ano de publicação
Artigo em Inglês | MEDLINE | ID: mdl-33571391


OBJECTIVES: To assess the incidence and risk factors for heart failure (HF) in patients with psoriatic disease (PsD) and describe their electrocardiographic and echocardiographic findings. METHODS: A cohort analysis was conducted involving patients with PsD followed prospectively from 1978 to 2018. Participants were assessed according to a standard protocol every 6 to 12-months. The primary outcome was the time to first event of HF, further classified into ischemic and non-ischemic HF (secondary outcomes). The association between cardiovascular risk factors, measures of disease activity and HF events was assessed using Cox proportional hazards regression. Electrocardiographic and echocardiographic findings associated with HF events were described. RESULTS: A total of 1994 patients with PsD were analyzed with 64 incident HF events (38 ischemic, 26 non-ischemic). The incidence rate of first HF event was 2.85 per 1000 patient years. In all events, most common electrocardiographic findings were atrial fibrillation (22%) and bundle branch blocks (29%). Echocardiogram revealed 37% reduced ejection fraction and 63% preserved ejection fraction. In multivariable analysis, independent risk factors for all HF events were ischemic heart disease, adjusted mean (AM)-tender joint count, AM-swollen joint count, AM-erythrocyte sedimentation rate, AM-C-reactive protein, and physical function (by health assessment questionnaire) (all p<0.05). Minimal disease activity state was protective for all HF (p<0.05). CONCLUSIONS: Increased risk of HF is associated with a combination of known cardiovascular risk factors and measures of disease activity, particularly in non-ischemic HF. The effect of inflammation on HF may be partially independent of atherosclerotic disease.

Arthritis Rheumatol ; 71(10): 1651-1659, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31165591


OBJECTIVE: This study aimed to assess whether subclinical atherosclerosis, as evaluated by carotid ultrasound, could predict incident cardiovascular events (CVEs) in patients with psoriatic disease (PsD) and determine whether incorporation of imaging data could improve CV risk prediction by the Framingham Risk Score (FRS). METHODS: In this cohort analysis, patients with PsD underwent ultrasound assessment of the carotid arteries at baseline. The extent of atherosclerosis was assessed using carotid intima-media thickness (CIMT) and total plaque area (TPA). Incident CVEs (new or recurrent) that occurred following the ultrasound assessment were identified. The association between measures of carotid atherosclerosis and the risk of developing an incident CVE was evaluated using Cox proportional hazards models, with adjustment for the FRS. RESULTS: In total, 559 patients with PsD were assessed, of whom 23 had incident CVEs ascertained. The calculated rate of developing a first CVE during the study period was 1.11 events per 100 patient-years (95% confidence interval [95% CI] 0.74-1.67). When analyzed separately in Cox proportional hazards models that were controlled for the FRS, the TPA (hazard ratio [HR] 3.74, 95% CI 1.55-8.85; P = 0.003), mean CIMT (HR 1.21, 95% CI 1.03-1.42; P = 0.02), maximal CIMT (HR 1.11, 95% CI 1.01-1.22; P = 0.03), and high TPA category (HR 3.25, 95% CI 1.18-8.95; P = 0.02) were each predictive of incident CVEs in patients with PsD. CONCLUSION: The burden of carotid atherosclerosis is associated with an increased risk of developing future CVEs. Combining vascular imaging data with information on traditional CV risk factors could improve the accuracy of CV risk stratification in patients with PsD.

Artrite Psoriásica/epidemiologia , Doenças Cardiovasculares/epidemiologia , Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/diagnóstico por imagem , Placa Aterosclerótica/diagnóstico por imagem , Adulto , Idoso , Angina Estável/epidemiologia , Angina Instável/epidemiologia , Doenças Cardiovasculares/mortalidade , Espessura Intima-Media Carotídea , Endarterectomia das Carótidas/estatística & dados numéricos , Feminino , Insuficiência Cardíaca/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Revascularização Miocárdica/estatística & dados numéricos , Ontário/epidemiologia , Modelos de Riscos Proporcionais , Psoríase/epidemiologia , Estudos Retrospectivos , Medição de Risco , Acidente Vascular Cerebral/epidemiologia , Ultrassonografia
J Rheumatol ; 46(4): 391-396, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30323009


OBJECTIVE: Antimalarials (AM) are recommended for all systemic lupus erythematosus (SLE) patients without specific contraindications. Their main adverse effect is retinal damage; however, heart disease has been described in isolated cases. The aim of our study is to describe 8 patients with AM-induced cardiomyopathy (AMIC) in a defined SLE cohort. METHODS: Patients attending the Toronto Lupus Clinic and diagnosed with definite (based on endomyocardial biopsy; EMB) and possible AMIC were included [based on cardiac magnetic resonance imaging (cMRI) and other investigations]. RESULTS: Eight female patients (median age 62.5 yrs, disease duration 35 yrs, AM use duration 22 yrs) were diagnosed with AMIC in the past 2 years. Diagnosis was based on EMB in 3 (extensive cardiomyocyte vacuolation, intracytoplasmic myelinoid, and curvilinear bodies). In 4 patients, cMRI was highly suggestive of AMIC (ventricular hypertrophy and/or atrial enlargement and late gadolinium enhancement in a nonvascular pattern). Another patient was diagnosed with complete atrioventricular block, left ventricular and septal hypertrophy, along with concomitant ocular toxicity. All patients had abnormal cardiac troponin I (cTnI) and brain natriuretic peptide (BNP), whereas 7/8 also had chronically elevated creatine phosphokinase. During followup, 1 patient died from refractory heart failure. In the remaining patients, hypertrophy regression and a steady decrease of heart biomarkers were observed after AM cessation. CONCLUSION: Once considered extremely rare, AMIC seems to be underrecognized, probably because of the false attribution of heart failure or hypertrophy to other causes. Certain biomarkers (cTnI, BNP) and imaging findings may lead to early diagnosis and enhance survival.

Antimaláricos/efeitos adversos , Antimaláricos/uso terapêutico , Cardiomiopatias/induzido quimicamente , Cardiomiopatias/diagnóstico por imagem , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Doenças Raras/induzido quimicamente , Doenças Raras/diagnóstico por imagem , Idoso , Biomarcadores/sangue , Biópsia , Canadá , Cardiomiopatias/patologia , Feminino , Seguimentos , Humanos , Imagem por Ressonância Magnética/métodos , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Doenças Raras/patologia , Troponina I/sangue , Suspensão de Tratamento
J Rheumatol ; 46(1): 64-69, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30068764


OBJECTIVE: Cardiac involvement in systemic lupus erythematosus (SLE) is often undiagnosed in its early phases. Specific heart biomarkers may identify patients at risk. We sought to investigate the prevalence and associated factors for such biomarkers in SLE. METHODS: Brain natriuretic peptide (BNP) and cardiac troponin I (cTnI) were measured simultaneously in 151 consecutive patients with no history of heart disease or pulmonary arterial hypertension (PAH). None had electrocardiographic abnormalities suggestive of acute coronary syndrome. Cross-sectional comparisons and logistic regression analyses were performed. Patients with abnormal biomarkers were investigated to delineate the specific cause. RESULTS: Sixteen patients (16/151, 10.6%) had elevated BNP, and 9 of them also had abnormal cTnI. Compared to subjects with normal biomarkers, they were older, had longer disease and antimalarial (AM) use duration, and more frequently persistent creatine phosphokinase (CPK) elevation. Multivariable regression analysis showed prolonged AM treatment (> 5.6 yrs) and persistent CPK elevation to be important predictors for elevated cardiac biomarkers. Six patients were diagnosed with definite (based on endomyocardial biopsy, n = 2) or possible (based on cardiac magnetic resonance after exclusion of other causes) AM-induced cardiomyopathy (AMIC); all had both BNP and cTnI elevated. Alternative causes were identified in 5, while no definitive diagnosis could be made in the remaining patients. CONCLUSION: About 10% of patients with SLE had elevated myocardial biomarkers, in the absence of prior cardiac disease or PAH. One-third of them were diagnosed with AMIC. Prolonged AM therapy and persistent CPK elevation conferred an increased risk for abnormal BNP and cTnI, which might predict AMIC.

Antimaláricos/efeitos adversos , Cardiomiopatias/diagnóstico por imagem , Lúpus Eritematoso Sistêmico/sangue , Peptídeo Natriurético Encefálico/sangue , Troponina I/sangue , Adulto , Idoso , Antimaláricos/uso terapêutico , Biomarcadores/sangue , Cardiomiopatias/induzido quimicamente , Creatina Quinase/sangue , Estudos Transversais , Feminino , Humanos , Malária/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Fatores de Risco
J Cardiovasc Magn Reson ; 20(1): 66, 2018 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-30231875


BACKGROUND: Left bundle branch block (LBBB) is associated with abnormal left ventricular (LV) contraction, and is frequently associated with co-morbid cardiovascular disease, but the effect of an isolated (i.e. in the absence of cardiovascular dissease) LBBB on biventricular volumes and ejection fraction (EF) is not well characterized. The objective of this study was to compare LV and right ventricular (RV) volumes and EF in adults with an isolated LBBB to matched healthy controls and to population-derived normative values, using cardiovascular magnetic resonance (CMR) imaging. METHODS: We reviewed our clinical echocardiography database and the Framingham Heart Study Offspring cohort CMR database to identify adults with an isolated LBBB. Age-, sex-, hypertension-status, and body-surface area (BSA)-matched controls were identified from the Offspring cohort. All study subjects were scanned using the same CMR hardware and imaging sequence. Isolated-LBBB cases were compared with matched controls using Wilcoxon paired signed-rank test, and to normative reference values via Z-score. RESULTS: Isolated-LBBB subjects (n = 18, 10F) ranged in age from 37 to 82 years. An isolated LBBB was associated with larger LV end-diastolic and end-systolic volumes (both p < 0.01) and lower LVEF (56+/- 7% vs. 68+/- 6%; p <0.001) with similar myocardial contraction fraction. LVEF in isolated LBBB was nearly two standard deviations (Z = - 1.95) below mean sex and age-matched group values. LV stroke volume, cardiac output, and mass, and all RV parameters were similar (p = NS) between the groups. CONCLUSIONS: Adults with an isolated LBBB have greater LV volumes and markedly reduced LVEF, despite the absence of overt cardiovascular disease. These data may be useful toward the clinical interpretation of imaging studies performed on patients with an isolated LBBB.

Bloqueio de Ramo/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Imagem por Ressonância Magnética , Volume Sistólico , Disfunção Ventricular Esquerda/diagnóstico por imagem , Função Ventricular Esquerda , Função Ventricular Direita , Adulto , Idoso , Idoso de 80 Anos ou mais , Bloqueio de Ramo/complicações , Bloqueio de Ramo/fisiopatologia , Estudos de Casos e Controles , Bases de Dados Factuais , Feminino , Humanos , Hipertrofia Ventricular Esquerda/etiologia , Hipertrofia Ventricular Esquerda/fisiopatologia , Masculino , Pessoa de Meia-Idade , Contração Miocárdica , Valor Preditivo dos Testes , Disfunção Ventricular Esquerda/etiologia , Disfunção Ventricular Esquerda/fisiopatologia
J Cardiovasc Magn Reson ; 18(1): 79, 2016 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-27846845


BACKGROUND: Functional mitral regurgitation is one of the severe complications of non-ischemic dilated cardiomyopathy (DCM). Non-contrast native T1 mapping has emerged as a non-invasive method to evaluate myocardial fibrosis. We sought to evaluate the potential relationship between papillary muscle T1 time and mitral regurgitation in DCM patients. METHODS: Forty DCM patients (55 ± 13 years) and 20 healthy adult control subjects (54 ± 13 years) were studied. Native T1 mapping was performed using a slice interleaved T1 mapping sequence (STONE) which enables acquisition of 5 slices in the short-axis plane within a 90 s free-breathing scan. We measured papillary muscle diameter, length and shortening. DCM patients were allocated into 2 groups based on the presence or absence of functional mitral regurgitation. RESULTS: Papillary muscle T1 time was significantly elevated in DCM patients with mitral regurgitation (n = 22) in comparison to those without mitral regurgitation (n = 18) (anterior papillary muscle: 1127 ± 36 msec vs 1063 ± 16 msec, p < 0.05; posterior papillary muscle: 1124 ± 30 msec vs 1062 ± 19 msec, p < 0.05), but LV T1 time was similar (1129 ± 38 msec vs 1134 ± 58 msec, p = 0.93). Multivariate linear regression analysis showed that papillary muscle native T1 time (ß = 0.10, 95 % CI: 0.05-0.17, p < 0.05) is significantly correlated with mitral regurgitant fraction. Elevated papillary muscle T1 time was associated with larger diameter, longer length and decreased papillary muscle shortening (all p values <0.05). CONCLUSIONS: In DCM, papillary muscle native T1 time is significantly elevated and related to mitral regurgitant fraction.

Cardiomiopatia Dilatada/complicações , Imagem Cinética por Ressonância Magnética , Insuficiência da Valva Mitral/diagnóstico por imagem , Valva Mitral/diagnóstico por imagem , Contração Miocárdica , Músculos Papilares/diagnóstico por imagem , Função Ventricular Esquerda , Adulto , Idoso , Cardiomiopatia Dilatada/diagnóstico por imagem , Cardiomiopatia Dilatada/fisiopatologia , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Meios de Contraste/administração & dosagem , Feminino , Fibrose , Humanos , Modelos Lineares , Masculino , Meglumina/administração & dosagem , Meglumina/análogos & derivados , Pessoa de Meia-Idade , Valva Mitral/fisiopatologia , Insuficiência da Valva Mitral/etiologia , Insuficiência da Valva Mitral/fisiopatologia , Análise Multivariada , Compostos Organometálicos/administração & dosagem , Músculos Papilares/patologia , Músculos Papilares/fisiopatologia , Valor Preditivo dos Testes , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo