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1.
Echo Res Pract ; 6(3): K7-K12, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31413861

RESUMO

Tuberculous pericarditis is a rare diagnosis seen among as few as 1% of tuberculosis (TB) patients in developed countries. We present a case of a 60-year-old male suffering from a transient constrictive pericarditis and subclinical involvement of the myocardium in a clinical case of tuberculous pericarditis with corresponding improvement after the initiation of anti-tuberculous treatment. We suggest monitoring of myocardial function using global longitudinal strain by myocardial speckle tracking strain analysis as supplement to routine left ventricular ejection fraction to assess clinical improvement in patients at risk of developing constrictive pericarditis. LEARNING POINTS: Tuberculous pericarditis is rare and a diagnostic challenge in low-incidence countries.Patients with tuberculosis and involvement of the heart are at high risk of developing constrictive pericarditis.Novel imaging techniques, such as estimation of global longitudinal strain using myocardial speckle tracking analysis, may be useful in assessing cardiac involvement in tuberculosis patients.

2.
J Neurooncol ; 137(2): 439-446, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29330749

RESUMO

The combination of lomustine and bevacizumab is a commonly used salvage treatment for recurrent glioblastoma (GBM). We investigated the toxicity and efficacy of lomustine plus bevacizumab (lom-bev) in a community-based patient cohort and made a comparison to another frequently used combination therapy consisting of irinotecan plus bevacizumab (iri-bev). Seventy patients with recurrent GBM were treated with lomustine 90 mg/m2 every 6 weeks and bevacizumab 10 mg/kg every 2 weeks. Toxicity was registered and compared to the toxicity observed in 219 recurrent GBM patients who had previously been treated with irinotecan 125 mg/m2 and bevacizumab 10 mg/kg every 2 weeks. The response rate was 37.1% for lom-bev and 30.1% for iri-bev. Median progression-free survival (PFS) was 23 weeks for lom-bev and 21 weeks for iri-bev (p = 0.9). Overall survival (OS) was 37 weeks for lom-bev and 32 weeks for iri-bev (p = 0.5). Lom-bev caused a significantly higher frequency of thrombocytopenia (11.4% grade 3-4) compared to iri-bev (3.5% grade 3-4). Iri-bev patients had more gastrointestinal toxicity with regard to nausea, vomiting, diarrhea, constipation and stomatitis. Within the limitations of the study lom-bev is a well-tolerated treatment for recurrent GBM, although hematological toxicity may be a dose limiting factor. No significant differences between lom-bev and iri-bev were observed with regard to PFS or OS. The differences in toxicity profiles between lom-bev and iri-bev could guide treatment decision in recurrent GBM therapy as efficacy is equal and no predictive factors for efficacy exist.


Assuntos
Antineoplásicos Imunológicos/uso terapêutico , Bevacizumab/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Glioblastoma/tratamento farmacológico , Lomustina/uso terapêutico , Adulto , Idoso , Antineoplásicos Imunológicos/toxicidade , Protocolos de Quimioterapia Combinada Antineoplásica/toxicidade , Bevacizumab/toxicidade , Neoplasias Encefálicas/mortalidade , Feminino , Seguimentos , Glioblastoma/mortalidade , Humanos , Irinotecano/uso terapêutico , Irinotecano/toxicidade , Lomustina/toxicidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/metabolismo , Terapia de Salvação , Resultado do Tratamento , Adulto Jovem
3.
Clin Pharmacol Ther ; 102(3): 547-553, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28224612

RESUMO

Paclitaxel is mainly eliminated by CYP2C8 in the liver. CYP2C8 is strongly inhibited by the clopidogrel metabolite acyl-ß-D-glucuronide. To determine if this interaction has clinical relevance, we identified 48 patients treated with clopidogrel and paclitaxel using databases and a prescription register. Peripheral sensory neuropathy was retrospectively evaluated from medical charts and compared to that of 88 age- and sex-matched controls treated with paclitaxel and low-dose aspirin. By a cumulative dose of 1,500 mg paclitaxel, 35% of the patients had developed severe neuropathy. The overall hazard ratio between clopidogrel use and severe paclitaxel neuropathy was 1.7 (95% confidence interval, 0.9-3.0). Among those receiving a high-dose paclitaxel regimen, the hazard ratio was 2.3 (95% confidence interval, 1.1-4.5). Our study indicates that clopidogrel is associated with a clinically relevant increased risk of neuropathy in patients treated with high-dose paclitaxel.


Assuntos
Citocromo P-450 CYP2C8/metabolismo , Paclitaxel/administração & dosagem , Doenças do Sistema Nervoso Periférico/induzido quimicamente , Inibidores da Agregação Plaquetária/administração & dosagem , Ticlopidina/análogos & derivados , Idoso , Aspirina/administração & dosagem , Clopidogrel , Relação Dose-Resposta a Droga , Interações Medicamentosas , Feminino , Humanos , Fígado/metabolismo , Masculino , Pessoa de Meia-Idade , Paclitaxel/efeitos adversos , Paclitaxel/farmacocinética , Doenças do Sistema Nervoso Periférico/epidemiologia , Farmacoepidemiologia , Inibidores da Agregação Plaquetária/efeitos adversos , Inibidores da Agregação Plaquetária/farmacocinética , Estudos Retrospectivos , Índice de Gravidade de Doença , Ticlopidina/administração & dosagem , Ticlopidina/efeitos adversos , Ticlopidina/farmacocinética
4.
Eur Heart J Cardiovasc Imaging ; 17(9): 1018-26, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26588987

RESUMO

AIMS: The clinical diagnosis of acute myocarditis is based on symptoms, electrocardiography, elevated myocardial necrosis biomarkers, and echocardiography. Often, conventional echocardiography reveals no obvious changes in global cardiac function and therefore has limited diagnostic value. Myocardial deformation imaging by echocardiography is an evolving method used to characterize quantitatively longitudinal systolic function, which may be affected in acute myocarditis. The aim of our study was to assess the utility of echocardiographic deformation imaging of the left ventricle in patients with diagnosed acute myocarditis in whom cardiovascular magnetic resonance (CMR) evaluation was performed. METHODS AND RESULTS: We included 28 consecutive patients (mean age 32 ± 13 years) with CMR-verified diagnosis of acute myocarditis according to the Lake Louise criteria. Cardiac function was evaluated by a comprehensive assessment of left ventricular (LV) function, including 2D speckle-tracking echocardiography. We found no significant correlation between the peak values of cardiac enzymes and the amount of myocardial oedema assessed by CMR (troponin: r= 0.3; P = 0.05 and CK-MB: r = 0.1; P = 0.3). We found a larger amount of myocardial oedema in the basal part of the left ventricle [American Heart Association (AHA) segments 1-6] in inferolateral and inferior segments, compared with the anterior, anterolateral, anteroseptal, and inferoseptal segments. In the mid LV segments (AHA segments 7-12), this was more pronounced in the anterior, anterolateral, and inferolateral segments. Among conventional echocardiographic parameters, LV function was not found to correlate with the amount of myocardial oedema of the left ventricle. In contrast, we found the wall motion score index to be significantly correlated with the amount of myocardial oedema, but this correlation was only present in patients with an extensive amount of oedema (>11% of the total left ventricle). Global longitudinal systolic myocardial strain correlated significantly with the amount of oedema (r = 0.65; P < 0.001). We found that both the epicardial longitudinal and the endocardial longitudinal systolic strains were significantly correlated with oedema (r = 0.55; P = 0.003 and r = 0.54; P < 0.001). CONCLUSION: In patients with acute myocarditis, 2D speckle-tracking echocardiography was a useful tool in the diagnostic process of acute myocarditis. Global longitudinal strain adds important information that can support clinical and conventional echocardiographic evaluation, especially in patients with preserved LV ejection fraction in relation to the diagnosis and degree of myocardial dysfunction.


Assuntos
Ecocardiografia/métodos , Edema Cardíaco/diagnóstico por imagem , Processamento de Imagem Assistida por Computador , Imagem Cinética por Ressonância Magnética/métodos , Miocardite/diagnóstico por imagem , Intensificação de Imagem Radiográfica , Doença Aguda , Adulto , Estudos de Coortes , Intervalos de Confiança , Edema Cardíaco/etiologia , Feminino , Gadolínio DTPA , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Miocardite/complicações , Variações Dependentes do Observador , Estudos Prospectivos , Índice de Gravidade de Doença , Estatísticas não Paramétricas , Adulto Jovem
5.
Int J Cardiol ; 146(3): 395-8, 2011 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-19700209

RESUMO

BACKGROUND: Coronary intervention (PCI) may result in an increased infarct size. We evaluated the effect of distal protection during PCI for ST-segment elevation myocardial infarction (STEMI) on myocardial function. METHODS: Patients with STEMI were randomly referred within 12 h for PCI with (N = 312) or without distal protection (N = 314). Left ventricular (LV) contractile function was assessed with echocardiography 8 months after PCI. Global LV myocardial wall motion index (WMI) was calculated as the average wall motion score of all myocardial segments. The occurrence of death, nonfatal re-infarction, and stroke 8 months after PCI were also recorded. RESULTS: The occurrence of death, nonfatal re-infarction, and stroke 8 months after PCI was 7.1% after distal protection and 5.7% after conventional treatment (p = 0.17). WMI improved by 4.1% at 8 months in patients treated with distal protection compared to patients receiving conventional PCI (p < 0.01). In myocardium supplied by a culprit artery treated by distal protection regional LV function was 9-11% higher than myocardial regions treated conventionally ( p < 0.02). CONCLUSIONS: Routine use of distal protection during primary PCI is associated with a significant improvement in LV contractile function, with no detectable impact on intermediate term clinical outcome.


Assuntos
Angioplastia Coronária com Balão/métodos , Infarto do Miocárdio/fisiopatologia , Infarto do Miocárdio/terapia , Função Ventricular Esquerda , Humanos , Contração Miocárdica , Complicações Pós-Operatórias/prevenção & controle
6.
Heart ; 95(12): 994-9, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19261602

RESUMO

OBJECTIVES: This randomised trial evaluated if patients with atrial fibrillation (AF) and no history of atrial flutter (AFL) had any benefit of prophylactic cavotricuspid isthmus block (CTIB) in addition to circumferential pulmonary vein ablation (CPVA). METHODS: 149 patients with AF (54% paroxysmal) were randomised to CPVA and CTIB (group CTIB+, n = 73) or CPVA alone (group CTIB-, n = 76). Patients were followed for 12 months with repetitive 7-day Holter monitoring after 3, 6 and 12 months. RESULTS: Six patients (4%) had cardiac tamponade, and one patient had a stroke. No difference was found in the cumulative AFL-free rate between the two treatment groups (CTIB+: 88% vs CTIB-: 84%, hazard ratio (HR) 0.80, 95% CI (0.34 to 1.90), p = 0.61). There was no difference in the cumulative AF-free rate between the groups (CTIB+: 34% vs CTIB-: 32%, HR 0.93, 95% CI (0.63 to 1.38), p = 0.71). Overall, 33% of the patients were free of AF after a single procedure. Including reprocedures, a complete or partial beneficial effect was noted in 62% of the patients at 12 months. At 12-month follow-up, 24 (50%) patients with documented AF or AFL in the Holter recordings were asymptomatic. CONCLUSIONS: It was not possible to demonstrate any beneficial effect of CTIB in addition to CPVA with regard to AFL or AF recurrences during follow-up. Repetitive long-term Holter monitoring demonstrated a 33% rate of freedom from AF during a 1-year follow-up. Including additional CPVA procedures, a clinical effect was noted in 62% of the patients at 12 months. Patients with AF or AFL recurrences were often asymptomatic.


Assuntos
Fibrilação Atrial/cirurgia , Ablação por Cateter/métodos , Idoso , Fibrilação Atrial/complicações , Fibrilação Atrial/prevenção & controle , Flutter Atrial/complicações , Eletrocardiografia Ambulatorial , Feminino , Átrios do Coração/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Veias Pulmonares/cirurgia , Prevenção Secundária , Resultado do Tratamento , Valva Tricúspide/cirurgia , Veia Cava Inferior/cirurgia
7.
J Intern Med ; 263(1): 90-8, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18036161

RESUMO

OBJECTIVE: To elucidate the association between treatment with ergot-derived dopamine agonists (EDDA) and valvular abnormalities amongst patients with idiopathic Parkinson's disease (IPD) and secondly, to analyse the yield of clinical screening for valvular heart disease. DESIGN: A cross-sectional controlled study. SETTING: The cohort of IPD patients treated in the outpatient clinic, Department of Neurology, Aarhus University Hospital, Denmark. SUBJECTS: A total of 138 IPD patients [median age 64 (39-87) years, 62% men] treated with either EDDA (n = 85) or non-EDDA (n = 53) for at least 6 months. Interventions. Patients were screened for valvular heart disease by clinical means and by examiner-blinded echocardiography. Main outcome measure was valvular regurgitation revealed by echocardiography. RESULTS: Severe aortic regurgitation (n = 4) or moderate aortic (n = 12), mitral (n = 3) or tricuspidal valve regurgitation (n = 5) was found in 22 EDDA patients (25.9%). Two patients had coexistent moderate mitral and tricuspid valvular regurgitation. Two non-EDDA patients had moderate valve insufficiency (3.8%, P < 0.05). The adjusted relative risk for at least moderate valve insufficiency in the EDDA patients was 7.2% (P < 0.05). The sensitivity of detecting at least moderate valvular disease by cardiac murmur, dyspnoea, or the heart failure marker NT-proBNP (natriuretic peptide) was 62% for the neurologists and 93% for the cardiologist but with equally low specificity (30-35%). CONCLUSION: EDDA was associated with a clinically important and statistically significant risk of at least moderate valve regurgitation. Clinical screening for valve disease was inadequate and it seems advisable to offer EDDA patients control with echocardiography.


Assuntos
Agonistas de Dopamina/efeitos adversos , Alcaloides de Claviceps/efeitos adversos , Doenças das Valvas Cardíacas/induzido quimicamente , Doença de Parkinson/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Instituições de Assistência Ambulatorial , Cabergolina , Estudos Transversais , Dinamarca , Agonistas de Dopamina/uso terapêutico , Eletrocardiografia , Ergolinas/efeitos adversos , Ergolinas/uso terapêutico , Alcaloides de Claviceps/uso terapêutico , Feminino , Doenças das Valvas Cardíacas/diagnóstico por imagem , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Doença de Parkinson/classificação , Índice de Gravidade de Doença , Ultrassonografia
8.
Scand J Med Sci Sports ; 17(2): 148-55, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17394476

RESUMO

AIM: The aim of this study was to assess the impact of long-term physical training on left ventricular longitudinal contraction by strain rate analysis and tissue tracking imaging. METHODS AND RESULTS: The study population comprised 17 male elite endurance and 15 male elite strength athletes and 12 male control subjects of similar age. Tissue Doppler imaging was recorded in the apical views and used for analysis of the longitudinal systolic myocardial velocity, annular diastolic velocities, strain rate and tissue tracking. Left ventricular mass index was significantly increased in both endurance athletes (209+/-40 g/m(2)) and strength athletes (138+/-38 g/m(2)) compared with normal subjects (96+/-20 g/m(2), P<0.001). Tissue tracking score index and mean strain rate of the 16 segments were significantly increased in strength athletes (7.9+/-1.1 mm and -1.4+/-0.3 s(-1), respectively) compared with endurance athletes (7.5+/-0.9 mm and -1.0+/-0.4 s(-1), P<0.01 for both) and normal subjects (7.4+/-1.0 mm and -1.0+/-0.3 s(-1), P<0.01 for both). CONCLUSION: Despite significant left ventricular hypertrophy and extensive training in elite athletes, we found normal longitudinal left ventricular systolic function, and in strength athletes performing isometric exercise even increased function.


Assuntos
Ecocardiografia Doppler , Educação Física e Treinamento/métodos , Resistência Física/fisiologia , Função Ventricular Esquerda/fisiologia , Adulto , Análise de Variância , Ciclismo/fisiologia , Estudos de Casos e Controles , Humanos , Masculino , Reprodutibilidade dos Testes , Levantamento de Peso/fisiologia
10.
Diabet Med ; 22(9): 1218-25, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16108852

RESUMO

AIMS: To characterize left ventricular function in hypertensive patients with Type 2 diabetes and normal ejection fraction, and to relate these findings to pathogenic factors and clinical risk markers. METHODS: We examined 70 hypertensive patients with Type 2 diabetes mellitus with ejection fraction > 0.55 and fractional shortening > 0.25, all without any cardiac symptoms. Thirty-five non-diabetic subjects served as control subjects. Left ventricular longitudinal function was examined by tissue Doppler derived myocardial strain rate and peak systolic velocities. RESULTS: Hypertensive patients with diabetes had a significantly higher systolic strain rate (-1.1 +/- 0.3 s(-1) vs. -1.6 +/- 0.3 s(-1), P < 0.001) and lower systolic peak velocities (3.3 +/- 1.0 vs. 5.6 +/- 1.0 cm/s, P < 0.001) compared with control subjects. Myocardial systolic strain rate correlated significantly to left ventricular mass (r = 0.40, P < 0.01) and to both HbA1c (r = 0.43, P < 0.01), and fructosamine (r = 0.40, P < 0.01), but was not related to serum levels of carboxymethyllysine, albuminuria, blood pressure (dipping/non-dipping), or oral hypoglycaemic therapy. Patients with diastolic dysfunction had significantly higher levels of urine albumin [21.0 (5-2500) mg/l, vs. 9.5 (1-360), P < 0.01], heart rate (78 +/- 13 vs. 67 +/- 10 b.p.m., P < 0.005), and seated diastolic blood pressure (85 +/- 6 vs. 81 +/- 7 mmHg, P < 0.05) and non-dipping diastolic blood pressure was more frequent. CONCLUSIONS: Long axis left ventricular systolic function was significantly decreased in hypertensive patients with Type 2 diabetes mellitus, and is associated with hyperglycaemia and left ventricular hypertrophy. Diastolic dysfunction was closely related to increased diastolic blood pressure, non-dipping and increased urinary albumin excretion.


Assuntos
Diabetes Mellitus Tipo 2/fisiopatologia , Hipertensão/fisiopatologia , Disfunção Ventricular Esquerda/fisiopatologia , Velocidade do Fluxo Sanguíneo/fisiologia , Glicemia/análise , Pressão Sanguínea/fisiologia , Monitorização Ambulatorial da Pressão Arterial/métodos , Diástole/fisiologia , Ecocardiografia/métodos , Feminino , Frutosamina/sangue , Hemoglobinas Glicadas/análise , Ventrículos do Coração/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Sístole/fisiologia
11.
Heart ; 91(5): 624-9, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15831647

RESUMO

OBJECTIVE: To investigate whether myocardial fibrosis assessed non-invasively is related to left ventricular (LV) longitudinal systolic function in patients with essential hypertension. DESIGN: The study consisted of 30 control subjects and 40 patients with hypertension with normal LV ejection fraction. Tissue Doppler echocardiography was performed to assess LV longitudinal systolic strain from the apical views. Mean strain was calculated from the basal and mid segments. Plasma concentrations of the amino-terminal propeptide of type III procollagen (PIIINP) were measured. RESULTS: In the hypertension group, mean strain was significantly reduced (mean (SD) 13 (6)% v 21 (6)%, p < 0.01) and plasma PIIINP were increased compared with controls (3.0 (0.7) microg/l v 2.1 (0.3) microg/l, p < 0.001). A significant correlation was found between mean strain and PIIINP (r = -0.56, p < 0.001). In patients with abnormal diastolic filling (n = 21) mean strain was reduced compared with patients with normal LV filling (n = 19) (10 (6)% v 15 (6)%, p < 0.01) and the serological marker PIIINP was increased (3.5 (0.6) microg/l v 2.5 (0.5) microg/l, p < 0.001). CONCLUSIONS: There is a significant association between the extent of myocardial fibrosis and reduced LV longitudinal contractility.


Assuntos
Hipertensão/patologia , Miocárdio/patologia , Fragmentos de Peptídeos/sangue , Pró-Colágeno/sangue , Disfunção Ventricular Esquerda/patologia , Estudos de Casos e Controles , Ecocardiografia Doppler em Cores , Feminino , Fibrose , Humanos , Hipertensão/sangue , Masculino , Pessoa de Meia-Idade , Disfunção Ventricular Esquerda/sangue , Disfunção Ventricular Esquerda/etiologia
12.
Diabet Med ; 22(2): 188-95, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15660737

RESUMO

OBJECTIVE: To examine levels of NT-proBNP and its relation to hypertension, as well as diastolic function in normoalbuminuric patients with Type 2 diabetes. RESEARCH DESIGN AND METHODS: The study comprised 60 Type 2 diabetic patients without albuminuria. Thirty patients were normotensive and 30 had hypertension. Exclusion criteria were cardiac symptoms and an ejection fraction < 55%. Thirty age- and sex-matched normal subjects served as controls. Diastolic dysfunction was assessed with echocardiography, by means of mitral inflow and colour M-Mode flow propagation recordings. RESULTS: Overall NT-proBNP was significantly elevated in the Type 2 diabetes group, compared with the controls [54.5 pg/ml (5-162) vs. 32.7 pg/ml (5-74.3) P = 0.02]. NT-proBNP was significantly higher among hypertensive patients compared with both normotensive patients and controls but no difference was found between the normotensive patients and the controls [58.0 pg/ml (8.5-162), P < 0.05 vs. 50.8 pg/ml (5-131) P = 0.4]. Patients with concentric and eccentric hypertrophy had significantly higher NT-proBNP levels compared with the control group [81.0 pg/ml (5-147), P < 0.001 and 66.8 pg/ml (42-128), P < 0.001], whereas patients with left ventricular remodelling (enlarged relative wall diameter but normal left ventricular mass) were comparable with the control group [42.3 pg/ml (8.3-142) P = 0.55]. Patients with left atrial enlargement also had incremental NT-proBNP values. NT-proBNP was only moderately correlated to age (r = 0.33, P < 0.05) and left ventricular diastolic diameter (r = 0.41, P < 0.05), but unrelated to diastolic function. CONCLUSIONS: NT-proBNP is significantly increased in hypertensive, normoalbuminuric patients with Type 2 diabetes. These findings were related to left ventricular hypertrophy and increased left atrial and ventricular diameters.


Assuntos
Albuminúria/sangue , Diabetes Mellitus Tipo 2/sangue , Angiopatias Diabéticas/sangue , Proteínas do Tecido Nervoso/sangue , Fragmentos de Peptídeos/sangue , Cardiomiopatia Dilatada/sangue , Diástole , Feminino , Átrios do Coração , Ventrículos do Coração , Humanos , Hipertrofia Ventricular Esquerda/sangue , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico
13.
Eur J Echocardiogr ; 4(4): 306-12, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14611827

RESUMO

AIMS: To investigate left ventricular systolic and diastolic function in patients with essential hypertension and diabetes mellitus associated with hypertension by the myocardial performance index (MPI). METHODS AND RESULTS: The study included 45 patients with essential hypertension, 45 patients with diabetes mellitus and hypertension and 45 normal subjects, who underwent a complete two-dimensional and Doppler echocardiography including assessment of the isovolumetric Doppler time intervals for the estimation of the Doppler-derived MPI. The MPI was significantly higher in patients with essential hypertension and diabetes with hypertension, compared to controls (Essential hypertension=0.51+/-0.12; Diabetes=0.51+/-0.12 vs. controls 0.40+/-0.05, P=0.001). The isovolumetric contraction time was significantly prolonged in essential hypertension (56+/-26 msec vs. 40+/-17 msec, P<0.01 respectively) and among diabetes patients isovolumetric relaxation time was prolonged compared to normal subjects (100+/-20 ms vs. 87+/-16 ms, P<0.01, respectively). The index was not related to left ventricular mass, age or ejection fraction, but significantly correlated to E-wave deceleration time (rho=0.48, P<0.001). CONCLUSIONS: The MPI is increased, in both essential hypertensive patients and diabetes patients with associated hypertension, despite normal ejection fraction.


Assuntos
Diabetes Mellitus/fisiopatologia , Ecocardiografia , Hipertensão/fisiopatologia , Função Ventricular Esquerda , Complicações do Diabetes , Diabetes Mellitus/diagnóstico por imagem , Ecocardiografia Doppler , Feminino , Humanos , Hipertensão/complicações , Hipertensão/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/etiologia , Masculino , Pessoa de Meia-Idade , Valva Mitral/diagnóstico por imagem , Contração Miocárdica
15.
Clin Sci (Lond) ; 105(1): 59-66, 2003 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12639218

RESUMO

Type II diabetes mellitus is associated with congestive heart failure with preserved ejection fraction. This group of patients has been assumed to have isolated diastolic dysfunction; however, the longitudinal systolic contraction of the left ventricle has not been studied previously. The objective of the present study was to investigate the longitudinal contraction of the left ventricle in normotensive Type II diabetes mellitus patients with normal ejection fraction. We examined 32 normotensive patients with Type II diabetes mellitus with ejection fraction >0.55 and fractional shortening >0.25. Exclusion criteria were angina pectoris, cardiac valve disease, albuminuria, retinopathy or neuropathy. Normal subjects (n =32) served as controls. A 16 segment model of motion amplitude assessed left ventricular longitudinal contraction and the average of the segments was calculated as the tissue tracking score index. Peak systolic velocity and strain rate was also obtained in each segment. Patients with Type II diabetes mellitus had a significantly lower tissue tracking score index compared with normal subjects (5.8+/-1.6 mm compared with 7.7+/-1.1 mm; P <0.001). Mean peak systolic velocity was also significantly lower (4.3+/-1.5 cm/s compared with 5.4+/-1.0 cm/s; P <0.001), as well as peak systolic strain rate (-1.2+/-0.3 s(-1) compared with -1.6+/-0.4 s(-1); P <0.001). Patients with Type II diabetes mellitus and preserved diastolic function had a significantly lower tissue tracking score index compared with normal subjects (6.6+/-1.5 mm; P <0.001), but patients with diastolic dysfunction had an even more profound decrease in tissue tracking score index compared with patients without diastolic dysfunction (4.9+/-0.9 mm; P <0.01). In conclusion, the longitudinal systolic contraction was significantly decreased in normotensive patients with Type II diabetes mellitus with normal ejection fraction, which was most profound in patients with concomitant diastolic dysfunction.


Assuntos
Diabetes Mellitus Tipo 2/complicações , Disfunção Ventricular Esquerda/complicações , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/diagnóstico por imagem , Ecocardiografia Doppler de Pulso , Ecocardiografia sob Estresse , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Disfunção Ventricular Esquerda/diagnóstico por imagem
16.
Cardiology ; 96(1): 45-50, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11701940

RESUMO

The purpose of this study was to investigate the long-term sequential changes in serum levels of the carboxyterminal propeptide of type-I procollagen (s-PICP), which is a marker of type-I collagen synthesis, and to assess its clinical value in relation to left ventricular (LV) function and prognosis following acute myocardial infarction (AMI). Forty-eight consecutive patients with their first AMI and 15 control subjects were studied. Patients with AMI were stratified according to the changes in s-PICP levels between days 1 and 90 (DeltaPICP) and divided into group I with < or =16.0 microg/l or group II with >16.0 microg/l. Patients in group II were characterized by LV dilatation, no improvement in ejection fraction and development of impaired diastolic filling from day 1 to 360, findings which were in contrast to group I. Cox regression analysis identified changes in s-PICP of >16.0 microg/l as an independent predictor of cardiac death or heart failure during follow-up. In conclusion, DeltaPICP relates to long-term changes in LV function and size, and provides prognostic information following AMI.


Assuntos
Colágeno Tipo I/sangue , Colágeno/biossíntese , Infarto do Miocárdio/sangue , Fragmentos de Peptídeos/sangue , Pró-Colágeno/sangue , Função Ventricular Esquerda/fisiologia , Adulto , Idoso , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Pressão Sanguínea/efeitos dos fármacos , Pressão Sanguínea/fisiologia , Colágeno Tipo I/efeitos dos fármacos , Ecocardiografia Doppler , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/tratamento farmacológico , Readmissão do Paciente , Valor Preditivo dos Testes , Pró-Colágeno/efeitos dos fármacos , Prognóstico , Estudos Prospectivos , Análise de Regressão , Tempo , Resultado do Tratamento , Função Ventricular Esquerda/efeitos dos fármacos
17.
Cardiology ; 95(4): 190-7, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11585994

RESUMO

The contribution of diastolic dysfunction in patients with preserved left ventricular (LV) systolic function to impaired functional status and cardiac mortality in myocardial infarction (MI) is unknown. In the present study, assessment of LV diastolic function was performed by Doppler analysis of the mitral and pulmonary venous flow, and the propagation velocity of early mitral flow by color M-mode Doppler echocardiography in 183 consecutive patients at day 5-7 following their first acute MI. Patients were classified into four groups: group A: preserved LV systolic and diastolic function (n = 73); group B: LV systolic dysfunction with preserved diastolic function (n = 10); group C: LV diastolic dysfunction with preserved systolic function (n = 60); group D: combined LV systolic and diastolic dysfunction (n = 40). The cardiac mortality rate at 1 year was significantly higher in groups C (13%) and D (38%) compared to A (2%) (p < 0.01). Multivariate regression analysis identified LV diastolic dysfunction (p = 0.001), Killip class >or=II (p = 0.006), and age (0.008) as predictors of cardiac death or readmission due to heart failure. The presence of LV diastolic dysfunction with preserved systolic dysfunction is associated with increased morbidity and mortality following acute MI.


Assuntos
Infarto do Miocárdio/fisiopatologia , Disfunção Ventricular Esquerda/fisiopatologia , Idoso , Diástole , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Prognóstico , Estudos Prospectivos , Estatística como Assunto , Sístole
18.
Heart ; 86(4): 376-80, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11559672

RESUMO

OBJECTIVE: To study the prognostic value of left ventricular (LV) diastolic function and its relation with autonomic balance expressed by heart rate variability (HRV) in patients after a first acute myocardial infarction. DESIGN: The study population consisted of 64 consecutive patients with first acute myocardial infarction and 31 control subjects. Long and short term HRV indices were evaluated by 24 hour Holter monitoring, and LV systolic and diastolic function were assessed by two dimensional and Doppler echocardiography before discharge. Patients were divided into two groups: those with restrictive LV filling characteristics (deceleration time 140 ms). RESULTS: Both long and short term HRV indices were significantly reduced in patients with restrictive LV filling compared with the non-restrictive group and control subjects. Mitral deceleration time and isovolumetric relaxation time correlated weakly but significantly with all indices of HRV whereas ejection fraction correlated weakly with the long term HRV indices. The mean follow up time was 14.9 (8.7) months. Multivariate analysis showed that mitral deceleration time (chi(2) = 6.4, p < 0.001) and ejection fraction

Assuntos
Arritmias Cardíacas/fisiopatologia , Infarto do Miocárdio/fisiopatologia , Disfunção Ventricular Esquerda/fisiopatologia , Função Ventricular Esquerda/fisiologia , Adulto , Idoso , Arritmias Cardíacas/diagnóstico por imagem , Morte Súbita Cardíaca/etiologia , Diástole/fisiologia , Ecocardiografia Doppler/métodos , Eletrocardiografia Ambulatorial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Prognóstico , Estudos Prospectivos , Análise de Sobrevida , Disfunção Ventricular Esquerda/diagnóstico por imagem
19.
J Intern Med ; 250(2): 137-43, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11489063

RESUMO

OBJECTIVE: To investigate the clinical outcome in patients with clinically suspected pulmonary embolism (PE). Design and setting. In a retrospective design we studied 588 consecutive patients with suspected PE and referred for lung scintigraphy from 1995 to 1998. The mean follow-up time was 653 +/- 424 days. RESULTS: The diagnosis of PE was confirmed in 194 and excluded in 394 patients, respectively. The overall prevalence of PE was 33%. Amongst clinical and paraclinical variables, age, chronic obstructive pulmonary disease (COPD), heart rate, pleuritic pain, presence of deep venous thrombosis (DVT), electrocardiographic signs of right ventricular (RV) strain were identified as independent predictors of the diagnosis of PE. Amongst patients with PE anticoagulation was given in 96% for at least 3 months and 13% received thrombolytic therapy. Recurrent PE was seen in 6% of patients with PE whereas none of the patients with no diagnosis of PE suffered PE during follow-up. The 1 year mortality was 18% amongst patients with PE and 15% in patients with excluded PE (P=NS). The cause of death amongst patients with PE was cancer (49%) and PE (28%), whereas patients without PE had an excess mortality because of cancer, COPD, acute myocardial infarction and heart failure. CONCLUSION: Patients admitted to hospital on suspicion of PE have increased risk of adverse clinical outcome whether the diagnosis of PE is confirmed or not. This indicates that the patients where the diagnosis is excluded often suffer from other serious illness that warrants further investigations.


Assuntos
Embolia Pulmonar/diagnóstico por imagem , Idoso , Causas de Morte , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Embolia Pulmonar/etiologia , Embolia Pulmonar/mortalidade , Cintilografia , Recidiva , Estudos Retrospectivos , Fatores de Risco
20.
J Am Soc Echocardiogr ; 14(8): 757-63, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11490323

RESUMO

To assess the association between color M-mode flow propagation velocity and the early diastolic mitral annular velocity (E(m)) obtained with tissue Doppler echocardiography and to assess the prognostic implications of the indexes, echocardiography was performed on days 1 and 5, and 1 and 3 months after a first myocardial infarction in 67 consecutive patients. Flow propagation velocity correlated well with E(m) (r = 0.72, P <.0001). The ratio of peak E-wave velocity (E) to flow propagation velocity also correlated well with E/E(m) (r = 0.87, P <.0001). The positive predictive value of E/FPV > or =1.5 to identify patients with Killip class > or =II was 90%, and the negative predictive value 92%. The corresponding values for E/E(m) > or =10 were 70% and 90%. Cox proportional hazards analysis identified E/flow propagation velocity > or =1.5 (relative risk, 12.4 [95% confidence interval, 4.1-37.3]), E/E(m) > or =10 (relative risk, 11.5 [95% confidence interval, 3.8-34.7]), and Killip class > or =II (relative risk, 7.8 [95% confidence interval, 1.6-40.4]) to be predictors of the composite end point of cardiac death and readmission because of heart failure. Thus flow propagation velocity and E(m) are closely related after myocardial infarction and appear to have similar prognostic information.


Assuntos
Ecocardiografia Doppler em Cores , Ecocardiografia Doppler de Pulso , Insuficiência Cardíaca/diagnóstico por imagem , Infarto do Miocárdio/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Feminino , Insuficiência Cardíaca/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Readmissão do Paciente , Valor Preditivo dos Testes , Prognóstico
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