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1.
Physiol Rep ; 10(3): e15184, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35146955

RESUMO

Mountain climbing at high altitude implies exposure to low levels of oxygen, low temperature, wind, physical and psychological stress, and nutritional insufficiencies. We examined whether right ventricular (RV) and left ventricular (LV) myocardial masses were reversibly altered by exposure to extreme altitude. Magnetic resonance imaging and echocardiography of the heart, dual x-ray absorptiometry scan of body composition, and blood samples were obtained from ten mountain climbers before departure to Mount Everest or Dhaulagiri (baseline), 13.5 ± 1.5 days after peaking the mountain (post-hypoxia), and six weeks and six months after expeditions exceeding 8000 meters above sea level. RV mass was unaltered after extreme altitude, in contrast to a reduction in LV mass by 11.8 ± 3.4 g post-hypoxia (p = 0.001). The reduction in LV mass correlated with a reduction in skeletal muscle mass. After six weeks, LV myocardial mass was restored to baseline values. Extreme altitude induced a reduction in LV end-diastolic volume (20.8 ± 7.7 ml, p = 0.011) and reduced E', indicating diastolic dysfunction, which were restored after six weeks follow-up. Elevated circulating interleukin-18 after extreme altitude compared to follow-up levels, might have contributed to reduced muscle mass and diastolic dysfunction. In conclusion, the mass of the RV, possibly exposed to elevated afterload, was not changed after extreme altitude, whereas LV mass was reduced. The reduction in LV mass correlated with reduced skeletal muscle mass, indicating a common denominator, and elevated circulating interleukin-18 might be a mechanism for reduced muscle mass after extreme altitude.


Assuntos
Doença da Altitude/fisiopatologia , Ventrículos do Coração/diagnóstico por imagem , Adulto , Diástole , Feminino , Ventrículos do Coração/anatomia & histologia , Ventrículos do Coração/metabolismo , Humanos , Interleucina-18/metabolismo , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Função Ventricular
2.
Open Heart ; 8(2)2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34933964

RESUMO

OBJECTIVE: Inflammation has emerged as a new treatment target in patients with coronary artery disease and inflammation seems to play an important role in ischaemia/reperfusion injury that follows ST-elevation myocardial infarction (STEMI). We aimed to explore the role of acute and sustained interleukin 6 (IL-6) signalling, including soluble IL-6 receptor (IL-6R), with regard to infarct size, adverse remodelling and future cardiovascular events in patients with STEMI. METHODS: We included 269 patients with first-time STEMI, symptom duration <6 hours and treated with percutaneous coronary intervention. Blood sampling and cardiac MRI were performed in the acute phase and after 4 months. Clinical events and all-cause mortality were registered during 12-month and 70-month follow-up, respectively. RESULTS: IL-6 levels above median at all sampling points were significantly associated with increased infarct size and reduced left ventricular ejection fraction (LVEF). IL-6 levels in the highest quartile were at all sampling points associated with an increased risk of having an adverse clinical event during the first 12 months and with long-term all-cause mortality. IL-6R was not associated with infarct size, LVEF, myocardial salvage or long-term all-cause mortality. CONCLUSION: Acute and sustained elevation of IL-6 measured 4 months after STEMI were associated with larger infarct size, reduced LVEF and adverse clinical events including all-cause mortality. The results add important information to the sustained role of inflammation in patients with STEMI and IL-6 as a potential target for long-term intervention. TRIAL REGISTRATION NUMBER: NCT00922675.


Assuntos
Interleucina-6/sangue , Imagem Cinética por Ressonância Magnética/métodos , Miocárdio/patologia , Infarto do Miocárdio com Supradesnível do Segmento ST/sangue , Idoso , Causas de Morte/tendências , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Noruega/epidemiologia , Estudos Prospectivos , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/mortalidade
3.
Circulation ; 143(25): 2431-2440, 2021 06 22.
Artigo em Inglês | MEDLINE | ID: mdl-33993702

RESUMO

BACKGROUND: Adjuvant breast cancer therapy containing anthracyclines with or without anti-human epidermal growth factor receptor-2 antibodies and radiotherapy is associated with cancer treatment-related cardiac dysfunction. In the PRADA trial (Prevention of Cardiac Dysfunction During Adjuvant Breast Cancer Therapy), concomitant treatment with the angiotensin receptor blocker candesartan attenuated the reduction in left ventricular ejection fraction (LVEF) in women receiving treatment for breast cancer, whereas the ß-blocker metoprolol attenuated the increase in cardiac troponins. This study aimed to assess the long-term effects of candesartan and metoprolol or their combination to prevent a reduction in cardiac function and myocardial injury. METHODS: In this 2×2 factorial, randomized, placebo-controlled, double-blind, single-center trial, patients with early breast cancer were assigned to concomitant treatment with candesartan cilexetil, metoprolol succinate, or matching placebos. Target doses were 32 and 100 mg, respectively. Study drugs were discontinued after adjuvant therapy. All 120 validly randomized patients were included in the intention-to-treat analysis. The primary outcome measure was change in LVEF assessed by cardiovascular magnetic resonance imaging from baseline to extended follow-up. Secondary outcome measures included changes in left ventricular volumes, echocardiographic peak global longitudinal strain, and circulating cardiac troponin concentrations. RESULTS: A small decline in LVEF but no significant between-group differences were observed from baseline to extended follow-up, at a median of 23 months (interquartile range, 21 to 28 months) after randomization (candesartan, 1.7% [95% CI, 0.5 to 2.8]; no candesartan, 1.8% [95% CI, 0.6 to 3.0]; metoprolol, 1.6% [95% CI, 0.4 to 2.7]; no metoprolol, 1.9% [95% CI, 0.7 to 3.0]). Candesartan treatment during adjuvant therapy was associated with a significant reduction in left ventricular end-diastolic volume compared with the noncandesartan group (P=0.021) and attenuated decline in global longitudinal strain (P=0.046) at 2 years. No between-group differences in change in cardiac troponin I and T concentrations were observed. CONCLUSIONS: Anthracycline-containing adjuvant therapy for early breast cancer was associated with a decline in LVEF during extended follow-up. Candesartan during adjuvant therapy did not prevent reduction in LVEF at 2 years, but was associated with modest reduction in left ventricular end-diastolic volume and preserved global longitudinal strain. These results suggest that a broadly administered cardioprotective approach may not be required in most patients with early breast cancer without preexisting cardiovascular disease. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01434134.


Assuntos
Benzimidazóis/uso terapêutico , Compostos de Bifenilo/uso terapêutico , Neoplasias da Mama/terapia , Quimiorradioterapia Adjuvante/efeitos adversos , Cardiopatias/prevenção & controle , Metoprolol/uso terapêutico , Tetrazóis/uso terapêutico , Função Ventricular Esquerda/efeitos dos fármacos , Antagonistas de Receptores Adrenérgicos beta 1/farmacologia , Antagonistas de Receptores Adrenérgicos beta 1/uso terapêutico , Adulto , Bloqueadores do Receptor Tipo 1 de Angiotensina II/farmacologia , Bloqueadores do Receptor Tipo 1 de Angiotensina II/uso terapêutico , Benzimidazóis/farmacologia , Compostos de Bifenilo/farmacologia , Neoplasias da Mama/diagnóstico por imagem , Cardiotônicos/farmacologia , Cardiotônicos/uso terapêutico , Estudos Cross-Over , Método Duplo-Cego , Feminino , Seguimentos , Cardiopatias/induzido quimicamente , Cardiopatias/diagnóstico por imagem , Humanos , Metoprolol/farmacologia , Pessoa de Meia-Idade , Volume Sistólico/efeitos dos fármacos , Volume Sistólico/fisiologia , Tetrazóis/farmacologia , Função Ventricular Esquerda/fisiologia
4.
Catheter Cardiovasc Interv ; 95(6): 1171-1175, 2020 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-31379116

RESUMO

OBJECTIVES: To evaluate the clinical utility and feasibility of a hybrid technique for obtaining vascular hemostasis by combining a suture- and a collagen-mediated system after transfemoral transcatheter aortic valve implantation (TF TAVI) in a real-world setting. METHODS: In 75 consecutive TF TAVI procedures, we investigated a hybrid closing method to achieve hemostasis at the large bore puncture site using a combination of one presuture closure system (ProGlide) and one collagen-mediated system (Angio-Seal). Vascular complications at puncture site were recorded until discharge. RESULTS: Successful hemostasis by the hybrid technique was achieved in 74 out of 75 patients, and the method was well tolerated by all patients. In 73 patients, (97.3%) neither puncture site related complications nor serious early or late bleedings were observed during a median hospital stay of 2 days postprocedure. CONCLUSION: This single-center registry study indicates that a percutaneous hybrid closure technique is safe and efficacious in closing large bore arteriotomies. It is an easy and reliable technique that may contribute to simplifying TAVI procedures. STUDY REGISTRATION: The data was collected from an internal quality control registry on treatment of patients with valvular heart disease with or without coronary artery disease, No 2014/17280, Oslo University Hospital, Ullevål.


Assuntos
Valva Aórtica/cirurgia , Cateterismo Periférico , Artéria Femoral , Hemorragia/prevenção & controle , Técnicas Hemostáticas/instrumentação , Procedimentos Cirúrgicos sem Sutura/instrumentação , Substituição da Valva Aórtica Transcateter , Dispositivos de Oclusão Vascular , Idoso , Idoso de 80 Anos ou mais , Cateterismo Periférico/efeitos adversos , Estudos de Viabilidade , Feminino , Hemorragia/etiologia , Técnicas Hemostáticas/efeitos adversos , Humanos , Masculino , Punções , Sistema de Registros , Estudos Retrospectivos , Procedimentos Cirúrgicos sem Sutura/efeitos adversos , Fatores de Tempo , Substituição da Valva Aórtica Transcateter/efeitos adversos , Resultado do Tratamento
5.
Atherosclerosis ; 296: 74-82, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31870625

RESUMO

BACKGROUND AND AIMS: We have previously found increased levels of the cysteine protease legumain in plasma and plaques from patients with carotid atherosclerosis. This study further investigated legumain during acute cardiovascular events. METHODS: Circulating levels of legumain from patients and legumain released from platelets were assessed by enzyme-linked-immunosorbent assay. Quantitative PCR and immunoblotting were used to study expression, while localization was visualized by immunohistochemistry. RESULTS: In the SUMMIT Malmö cohort (n = 339 with or without type 2 diabetes and/or cardiovascular disease [CVD], and 64 healthy controls), the levels of circulating legumain were associated with the presence of CVD in non-diabetics, with no relation to outcome. In symptomatic carotid plaques and in samples from both coronary and intracerebral thrombi obtained during acute cardiovascular events, legumain was co-localized with macrophages in the same regions as platelets. In vitro, legumain was shown to be present in and released from platelets upon activation. In addition, THP-1 macrophages exposed to releasate from activated platelets showed increased legumain expression. Interestingly, primary peripheral blood mononuclear cells stimulated with recombinant legumain promoted anti-inflammatory responses. Finally, in a STEMI population (POSTEMI; n = 272), patients had significantly higher circulating legumain before and immediately after percutaneous coronary intervention compared with healthy controls (n = 67), and high levels were associated with improved outcome. CONCLUSIONS: Our data demonstrate for the first time that legumain is upregulated during acute cardiovascular events and is associated with improved outcome.


Assuntos
Doenças Cardiovasculares/metabolismo , Cisteína Endopeptidases/biossíntese , Macrófagos/enzimologia , Infarto do Miocárdio com Supradesnível do Segmento ST/sangue , Doença Aguda , Sequência de Aminoácidos , Plaquetas/metabolismo , Doenças Cardiovasculares/complicações , Doenças Cardiovasculares/patologia , Doenças das Artérias Carótidas/metabolismo , Doenças das Artérias Carótidas/patologia , Estudos Transversais , Cisteína Endopeptidases/sangue , Cisteína Endopeptidases/genética , Cisteína Endopeptidases/farmacologia , Citocinas/farmacologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Seguimentos , Humanos , Lipopolissacarídeos/farmacologia , Monócitos/efeitos dos fármacos , Intervenção Coronária Percutânea , Placa Aterosclerótica/química , Ativação Plaquetária , Proteínas Recombinantes/farmacologia , Infarto do Miocárdio com Supradesnível do Segmento ST/mortalidade , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Suécia/epidemiologia , Células THP-1
6.
EJVES Short Rep ; 42: 34-36, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30931405

RESUMO

INTRODUCTION: Access site vascular complications in transfemoral transcatheter aortic valve implantation (TF-TAVI) are still a major concern. Recently, a novel collagen plug based closure device (Manta) was introduced. The results from the first reports on Manta are very promising, but not much is known about the long-term patency. REPORT: A case of late pseudoaneurysm after access site arterial closure with Manta in TF-TAVI is described. The patient presented five weeks after left sided TF-TAVI with pain and claudication like symptoms in the left leg. CT angiography revealed a pseudoaneurysm at the puncture site. The patient was successfully treated by vascular surgery. DISCUSSION: The results from recent peri-operative reports on the Manta vascular closure device (VCD) are promising, but not much is known about the long-term patency. In the present report a patient is described who developed a pseudoaneurysm several weeks after access site closure with Manta. To the authors' knowledge, no such late access site complications after use of the Manta VCD have been reported previously.

7.
CVIR Endovasc ; 1(1): 20, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30652151

RESUMO

BACKGROUND: Despite decreasing sheath diameter, access site bleeding and vascular complications are still a major concern in transfemoral aortic valve implantation (TAVI), and may increase morbidity and even increase mortality. The aim was to compare safety of arterial closure in transfemoral TAVI with two different principles, pre-suture with ProGlide and collagen plug closure with Manta. RESULTS: Seventy-six patients treated with ProGlide and 75 with Manta were analysed. The endpoints were 1: access site vascular complications and 2: non-planned vascular or endovascular surgery at the puncture site. Complications occurred in 2 (2.7%) ProGlide and in 8 (10.7%) Manta cases, p = 0.047. During the learning phase there were no significant differences. In the established phase there was one event (2%) in the ProGlide group, compared to 6 endpoints (12.0%), p = 0.047, in the Manta group.Unplanned surgery or intervention was seen in two (2.7%) ProGlide and in 7 (9.3%) Manta patients, p = ns. There were no significant differences during the learning phase. In established use, endpoints occurred more frequently in patients treated with the Manta device (12%), than in patients treated with the ProGlide (2%), p = 0.047. CONCLUSION: The ProGlide presuture closure device was associated with significantly lower rates of vascular complications and lower rates of surgery and interventions compared to the collagen plug Manta system. TRIAL REGISTRATION: The data were collected from Internal quality control registry on treatment of patients with valvular heart disease with or without coronary artery disease, No 2014/17280, Oslo University Hospital, Ullevål.

8.
Eur Heart J Cardiovasc Imaging ; 19(5): 544-552, 2018 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-29106497

RESUMO

Aims: Anthracycline treatment may cause myocyte loss and expansion of the myocardial extracellular volume (ECV) fraction by oedema and fibrosis. We tested the hypotheses that adjuvant treatment for early breast cancer with the anthracycline epirubicin is dose dependently associated with increased ECV fraction and total ECV, as well as reduced total myocardial cellular volume, and that these changes could be prevented by concomitant angiotensin or beta-adrenergic blockade. Methods and results: PRevention of cArdiac Dysfunction during Adjuvant breast cancer therapy (PRADA) was a 2 × 2 factorial, placebo-controlled, double-blinded trial of candesartan and metoprolol. Sixty-nine women had valid ECV measurements. ECV fraction, total ECV, and total cellular volume were measured by cardiovascular magnetic resonance before and at the completion of anthracycline therapy. ECV fraction increased from 27.5 ± 2.7% to 28.6 ± 2.9% (P = 0.002). A cumulative doxorubicin equivalent dose of 268 mg/m2 was associated with greater increase in ECV fraction than doses <268 mg/m2 (mean change 3.4% [95% confidence interval (CI) 1.2, 5.5] vs. 0.7% [95% CI 0.0, 1.5], P = 0.006), as well as greater increase in total ECV (1.9 mL [95% CI 0.4, 3.5] vs. 0.1 mL [95% CI -0.6, 0.8], P = 0.04). In patients receiving candesartan, total cellular volume decreased (-3.5 mL [95% CI - 4.7, -2.2], P < 0.001) while in patients not receiving candesartan, it remained unchanged (P = 0.45; between group difference P = 0.003). Conclusions: Anthracycline therapy is associated with dose-dependent increase in ECV fraction and total ECV. Concomitant treatment with candesartan reduces left ventricular total cellular volume.


Assuntos
Antraciclinas/efeitos adversos , Benzimidazóis/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Cardiotoxicidade/diagnóstico por imagem , Imagem Cinética por Ressonância Magnética/métodos , Tetrazóis/efeitos adversos , Adulto , Idoso , Antraciclinas/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Benzimidazóis/uso terapêutico , Compostos de Bifenilo , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Cardiotoxicidade/mortalidade , Cardiotoxicidade/fisiopatologia , Quimioterapia Adjuvante , Ciclofosfamida/efeitos adversos , Ciclofosfamida/uso terapêutico , Relação Dose-Resposta a Droga , Método Duplo-Cego , Epirubicina/efeitos adversos , Epirubicina/uso terapêutico , Feminino , Fluoruracila/efeitos adversos , Fluoruracila/uso terapêutico , Hospitais Universitários , Humanos , Estimativa de Kaplan-Meier , Mastectomia/métodos , Pessoa de Meia-Idade , Noruega , Prognóstico , Estudos Prospectivos , Medição de Risco , Estatísticas não Paramétricas , Volume Sistólico/efeitos dos fármacos , Análise de Sobrevida , Tetrazóis/uso terapêutico
9.
J Am Heart Assoc ; 6(11)2017 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-29118031

RESUMO

BACKGROUND: Anthracyclines are associated with cardiotoxic effects. Cardiovascular biomarkers may reflect myocardial injury, dysfunction, inflammation, and fibrosis and may precede and predict the development of left ventricular impairment. The aim of this study was to assess: (1) longitudinal change in circulating cardiovascular biomarkers, (2) the effect of metoprolol succinate and candesartan cilexetil on the biomarker response, and (3) the associations between on-treatment changes in biomarker concentrations and subsequent left ventricular dysfunction in patients with early breast cancer receiving anthracyclines. METHODS AND RESULTS: This report encompasses 121 women included in the 2×2 factorial, placebo-controlled, double-blind PRADA (Prevention of Cardiac Dysfunction During Adjuvant Breast Cancer Therapy) trial with metoprolol and candesartan given concomitantly with anticancer therapy containing the anthracycline, epirubicin (total cumulative dose, 240-400 mg/m2). Cardiovascular magnetic resonance, echocardiography images, and circulating levels of biomarkers were obtained before and after anthracycline treatment. Cardiac troponins I and T, B-type natriuretic peptide, N-terminal pro-B-type natriuretic peptide, C-reactive protein, and galectin-3 increased during anthracycline therapy (all P<0.05). The troponin response was attenuated by metoprolol (P<0.05), but not candesartan. There was no association between change in biomarker concentrations and change in cardiac function during anthracycline therapy. CONCLUSIONS: Treatment with contemporary anthracycline doses for early breast cancer is associated with increase in circulating cardiovascular biomarkers. This increase is, however, not associated with early decline in ventricular function. Beta-blockade may attenuate early myocardial injury, but whether this attenuation translates into reduced risk of developing ventricular dysfunction in the long term remains unclear. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrial.gov. Unique identifier: NCT01434134.


Assuntos
Benzimidazóis/administração & dosagem , Compostos de Bifenilo/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Epirubicina/efeitos adversos , Metoprolol/administração & dosagem , Tetrazóis/administração & dosagem , Disfunção Ventricular Esquerda/prevenção & controle , Antagonistas de Receptores Adrenérgicos beta 1/administração & dosagem , Adulto , Bloqueadores do Receptor Tipo 1 de Angiotensina II/administração & dosagem , Antibióticos Antineoplásicos/administração & dosagem , Antibióticos Antineoplásicos/efeitos adversos , Biomarcadores/sangue , Neoplasias da Mama/sangue , Neoplasias da Mama/complicações , Cardiotoxicidade/prevenção & controle , Relação Dose-Resposta a Droga , Método Duplo-Cego , Quimioterapia Combinada , Epirubicina/administração & dosagem , Feminino , Humanos , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Precursores de Proteínas , Resultado do Tratamento , Troponina I/sangue , Troponina T/sangue , Disfunção Ventricular Esquerda/sangue , Disfunção Ventricular Esquerda/induzido quimicamente
10.
PLoS One ; 12(3): e0173034, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28253327

RESUMO

BACKGROUND: Elevated levels of osteoprotegerin (OPG) have been associated with adverse outcomes in ST-elevation myocardial infarction (STEMI). However, the role of OPG in myocardial injury and adverse remodeling in STEMI patients remains unclear. The aims of this observational cohort study were to evaluate: 1) the temporal profile of OPG during STEMI, 2) possible associations between OPG measured acutely and after 4 months, with infarct size, adverse left ventricular (LV) remodeling, microvascular obstruction (MVO) and myocardial salvage and 3) the effect of heparin administration on OPG levels. METHODS: Blood samples were drawn repeatedly from 272 STEMI patients treated with primary percutaneous coronary intervention (PCI). Cardiac magnetic resonance imaging (CMR) was performed in the acute phase and after 4 months. The effect of heparin administration on OPG levels was studied in 20 patients referred to elective coronary angiography. RESULTS: OPG levels measured acutely were significantly higher than Day 1 and during follow-up. OPG levels were correlated with age. No association was found between early OPG levels and CMR measurements at 4 months. Patients with >median OPG levels measured at Day 1 had larger final infarct size, lower LV ejection fraction (LVEF) at 4 months and higher frequency of MVO. There were no associations between OPG and change in end-diastolic volume or myocardial salvage. OPG remained associated with infarct size and LVEF after adjustment for relevant covariates, except peak troponin T and CRP. A 77% increase in OPG levels following heparin administration was found in patients undergoing elective coronary angiography. CONCLUSIONS: OPG was found to be associated with myocardial injury, but not with LV remodeling or myocardial salvage. The use of OPG as a biomarker in STEMI patients seems to be limited by a strong association with age, confounding effect of heparin administration, and little additive value to established biomarkers.


Assuntos
Infarto do Miocárdio/metabolismo , Osteoprotegerina/metabolismo , Função Ventricular Esquerda , Humanos , Imageamento por Ressonância Magnética , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/fisiopatologia
11.
Eur Heart J ; 37(21): 1671-80, 2016 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-26903532

RESUMO

AIMS: Contemporary adjuvant treatment for early breast cancer is associated with improved survival but at the cost of increased risk of cardiotoxicity and cardiac dysfunction. We tested the hypothesis that concomitant therapy with the angiotensin receptor blocker candesartan or the ß-blocker metoprolol will alleviate the decline in left ventricular ejection fraction (LVEF) associated with adjuvant, anthracycline-containing regimens with or without trastuzumab and radiation. METHODS AND RESULTS: In a 2 × 2 factorial, randomized, placebo-controlled, double-blind trial, we assigned 130 adult women with early breast cancer and no serious co-morbidity to the angiotensin receptor blocker candesartan cilexetil, the ß-blocker metoprolol succinate, or matching placebos in parallel with adjuvant anticancer therapy. The primary outcome measure was change in LVEF by cardiac magnetic resonance imaging. A priori, a change of 5 percentage points was considered clinically important. There was no interaction between candesartan and metoprolol treatments (P = 0.530). The overall decline in LVEF was 2.6 (95% CI 1.5, 3.8) percentage points in the placebo group and 0.8 (95% CI -0.4, 1.9) in the candesartan group in the intention-to-treat analysis (P-value for between-group difference: 0.026). No effect of metoprolol on the overall decline in LVEF was observed. CONCLUSION: In patients treated for early breast cancer with adjuvant anthracycline-containing regimens with or without trastuzumab and radiation, concomitant treatment with candesartan provides protection against early decline in global left ventricular function.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Antagonistas de Receptores de Angiotensina/uso terapêutico , Benzimidazóis/uso terapêutico , Compostos de Bifenilo/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Insuficiência Cardíaca/prevenção & controle , Metoprolol/uso terapêutico , Tetrazóis/uso terapêutico , Antraciclinas/efeitos adversos , Antineoplásicos/efeitos adversos , Quimioterapia Adjuvante , Método Duplo-Cego , Quimioterapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Trastuzumab/efeitos adversos , Resultado do Tratamento
12.
Cytokine ; 69(1): 131-5, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24930044

RESUMO

BACKGROUND: Fractalkine (CX3CL1) is a chemokine associated with atherosclerosis and inflammation. There is limited knowledge of fractalkine levels during acute myocardial infarction (AMI) and stem cell treatment. We aimed to investigate the time profile of circulating fractalkine and gene expression of its receptor CX3CR1 during AMI, and the influence of intracoronary autologous bone marrow stem cell (mBMC) transplantation (given 6 days after AMI) on fractalkine levels. METHODS: We examined fractalkine levels at different time points by enzyme-linked immunosorbent assay (ELISA) in 20 patients with AMI, and 10 patients with stable angina pectoris (AP) undergoing percutaneous coronary intervention (PCI), and in 100 patients included in the randomized Autologous Stem-Cell Transplantation in Acute Myocardial Infarction (ASTAMI) trial. RESULTS: Patients with AMI had significantly elevated levels 3- and 12 h after PCI compared to patients with stable AP. After 12 h levels were similar in the two groups. An inverse pattern was observed in gene expression levels. No correlation between fractalkine levels and myocardial injury or infarct size was seen. We could not demonstrate any influence of autologous mBMC transplantation on fractalkine levels. CONCLUSION: Fractalkine levels are elevated the first 12 h after PCI in patients with AMI, however, not correlated to infarct size. The inverse pattern in gene expression of fractalkine receptor (CX3CR1) might be a compensatory mechanism. No effect of autologous mBMC transplantation given 6 days after AMI on fractalkine levels was observed.


Assuntos
Transplante de Medula Óssea , Quimiocina CX3CL1/sangue , Infarto do Miocárdio/sangue , Receptores de Quimiocinas/biossíntese , Transplante de Células-Tronco , Adulto , Idoso , Angina Pectoris/sangue , Aterosclerose/sangue , Aterosclerose/imunologia , Células da Medula Óssea , Receptor 1 de Quimiocina CX3C , Angiografia Coronária , Ensaio de Imunoadsorção Enzimática , Feminino , Coração/diagnóstico por imagem , Humanos , Inflamação/sangue , Inflamação/imunologia , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea , Células-Tronco
13.
Tidsskr Nor Laegeforen ; 134(1): 32-6, 2014 Jan 14.
Artigo em Norueguês | MEDLINE | ID: mdl-24429753

RESUMO

BACKGROUND: Renal denervation (RDN) has been introduced as a potential new treatment for patients with treatment-resistant hypertension, defined as a blood pressure above 140/90 mm Hg despite treatment with at least three antihypertensive drugs. We present an overview of this type of treatment, describe the method and discuss its possible future uses. METHOD: The review is based on a discretionary selection of relevant articles from our archive, our own experience and a literature search in PubMed. RESULTS: The use of RDN for treatment-resistant hypertension is based on a single randomised study with a total of 104 patients, in which the intervention group experienced a fall in blood pressure of 32/12 mm Hg, while blood pressure in the control group remained unchanged. More than 16,000 patients, particularly in Germany, have been treated on this basis. In the USA, data from a larger randomised study (n = 530) that includes sham surgery are awaited before any decision is made on whether to approve the method for use. INTERPRETATION: Before RDN can become recommended treatment in Norway, more evidence is required that the method lowers blood pressure, and that this reduces morbidity and mortality.


Assuntos
Hipertensão/cirurgia , Rim/inervação , Simpatectomia/métodos , Pressão Sanguínea , Ablação por Cateter/efeitos adversos , Ablação por Cateter/métodos , Humanos , Rim/diagnóstico por imagem , Rim/cirurgia , Radiografia , Artéria Renal/diagnóstico por imagem , Artéria Renal/inervação , Simpatectomia/efeitos adversos
14.
Tidsskr Nor Laegeforen ; 133(17): 1832-6, 2013 Sep 17.
Artigo em Norueguês | MEDLINE | ID: mdl-24042297

RESUMO

BACKGROUND: Cardiac dysfunction in the form of reduced systolic and/or diastolic left ventricular function after adjuvant cancer therapy has recently attracted increasing attention. The best-known cardiotoxic agents are anthracyclines and the recombinant antibody trastuzumab. Patients treated with radiotherapy to the thorax are liable to develop coronary artery disease. There are no official guidelines for the preventive treatment of cardiac dysfunction induced by chemotherapy, antibody therapy or radiotherapy. The purpose of this article is to provide an overview of cardiac dysfunction caused by adjuvant cancer therapies and to review possible preventive therapeutic principles. MATERIAL AND METHOD: This article is based on a review of the literature derived from a search in PubMed. RESULTS: 27% of those treated with anthracyclines and trastuzumab may develop some degree of cardiac dysfunction. The figure for patients receiving radiotherapy to the thorax is more uncertain. Small-scale studies suggest that anthracycline-induced cardiac dysfunction can be prevented wholly or partially by blocking the renin-angiotensin-aldosterone system and by beta-adrenergic blockade. As yet, there are no results of prospective studies on cardiopreventive treatment during trastuzumab therapy or thoracic radiotherapy. INTERPRETATION: There is a need for randomised, placebo-controlled studies of homogeneous groups of patients in order to determine whether treatment with cardioprotective medication in parallel with chemotherapy, antibody therapy or radiotherapy can prevent or reduce cardiac dysfunction.


Assuntos
Antineoplásicos/efeitos adversos , Quimioterapia Adjuvante/efeitos adversos , Cardiopatias/induzido quimicamente , Coração/efeitos da radiação , Radioterapia Adjuvante/efeitos adversos , Antagonistas Adrenérgicos beta/farmacologia , Antagonistas Adrenérgicos beta/uso terapêutico , Antagonistas de Receptores de Angiotensina/farmacologia , Antagonistas de Receptores de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Antraciclinas/efeitos adversos , Antraciclinas/farmacologia , Antibióticos Antineoplásicos/efeitos adversos , Antibióticos Antineoplásicos/farmacologia , Anticorpos Monoclonais Humanizados/efeitos adversos , Anticorpos Monoclonais Humanizados/farmacologia , Antineoplásicos/farmacologia , Coração/efeitos dos fármacos , Cardiopatias/tratamento farmacológico , Cardiopatias/prevenção & controle , Humanos , Neoplasias/tratamento farmacológico , Neoplasias/radioterapia , Trastuzumab , Disfunção Ventricular Esquerda/induzido quimicamente , Disfunção Ventricular Esquerda/tratamento farmacológico , Disfunção Ventricular Esquerda/prevenção & controle
15.
Cardiology ; 123(4): 240-7, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23207160

RESUMO

OBJECTIVE: The PRevention of cArdiac Dysfunction during Adjuvant breast cancer therapy (PRADA) study is a randomized, placebo-controlled, double-blind trial to determine whether angiotensin receptor blockers (ARB), or beta-blockers or their combination may prevent the development of left ventricular (LV) dysfunction in patients on standard adjuvant treatment for early breast cancer. METHODS: Following surgical resection, 120 breast cancer patients scheduled for adjuvant epirubicin-containing chemotherapy and, if indicated, trastuzumab, will be included. They will be randomized to an ARB (candesartan), a beta-blocker (metoprolol) and matching placebos in a 2 × 2 factorial design. The primary objective of the PRADA study is to assess whether prophylactic ARB and/or beta-blockers may prevent a reduction in LV ejection fraction (EF) after adjuvant treatment of early breast cancer, as evaluated by serial cardiovascular magnetic resonance (CMR) performed at randomization, after the first chemotherapy cycle and on its completion, and for subgroups, on completion of radiotherapy or trastuzumab. Secondary outcome measures include echocardiographic indices of LV diastolic dysfunction, structural myocardial alterations assessed by CMR and changes in cardiac biomarkers. CONCLUSION: PRADA may provide new information on the prophylactic effect of ARB and beta-blockers in patients with early breast cancer regarding the risk of developing cardiac dysfunction from adjuvant cancer treatment.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Antagonistas de Receptores de Angiotensina/uso terapêutico , Antineoplásicos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Insuficiência Cardíaca/prevenção & controle , Antagonistas Adrenérgicos beta/farmacologia , Antagonistas de Receptores de Angiotensina/farmacologia , Biomarcadores/sangue , Diástole/efeitos dos fármacos , Método Duplo-Cego , Ecocardiografia , Feminino , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/induzido quimicamente , Humanos , Imageamento por Ressonância Magnética , Distribuição Aleatória , Estatística como Assunto , Sístole/efeitos dos fármacos , Função Ventricular Esquerda/efeitos dos fármacos
16.
Tidsskr Nor Laegeforen ; 124(10): 1384-6, 2004 May 20.
Artigo em Norueguês | MEDLINE | ID: mdl-15195176

RESUMO

BACKGROUND: Increasing numbers of patients undergoing angiographic procedures result in an increase in the total number of complications. False aneurysm may develop in 1-5% after femoral artery puncture. Until recently, ultrasound-guided compression was the preferred method of treatment, in a few cases surgery. A newer method with ultrasound-guided injection of thrombin has been shown to be effective. MATERIAL AND METHODS: Between 2000 and 2003, twenty-seven patients were diagnosed with iatrogenic false aneurysms in our hospital. The diagnosis was obtained by ultrasound when clinically suspected. Twelve patients were treated with compression technique, one with surgery, twelve with ultrasound-guided injection of thrombin, and two received no active treatment. RESULTS AND CONCLUSION: Ultrasound-guided needle injection of thrombin was a good method of treatment with a success rate of 100%, as compared to 83% with compression technique. Days in hospital stay were few and no complications were observed. Based on the good results reported in the literature and our own experience, we suggest that ultrasound-guided injection of thrombin should be the treatment of choice for femoral pseudoaneurysms.


Assuntos
Falso Aneurisma , Artéria Femoral/lesões , Adulto , Falso Aneurisma/diagnóstico por imagem , Falso Aneurisma/etiologia , Falso Aneurisma/terapia , Angiografia/efeitos adversos , Angioplastia com Balão/efeitos adversos , Embolização Terapêutica/efeitos adversos , Feminino , Artéria Femoral/diagnóstico por imagem , Técnicas Hemostáticas , Hemostáticos/administração & dosagem , Humanos , Doença Iatrogênica , Masculino , Pessoa de Meia-Idade , Punções/efeitos adversos , Estudos Retrospectivos , Trombina/administração & dosagem , Ultrassonografia
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