RESUMO
AIMS: Sodium-glucose co-transporter 2 inhibition reduces the risk of hospitalization for heart failure and for death in patients with symptomatic heart failure. However, trials investigating the effects of this drug class in patients following acute myocardial infarction are lacking. METHODS AND RESULTS: In this academic, multicentre, double-blind trial, patients (n = 476) with acute myocardial infarction accompanied by a large creatine kinase elevation (>800â IU/L) were randomly assigned to empagliflozin 10â mg or matching placebo once daily within 72â h of percutaneous coronary intervention. The primary outcome was the N-terminal pro-hormone of brain natriuretic peptide (NT-proBNP) change over 26 weeks. Secondary outcomes included changes in echocardiographic parameters. Baseline median (interquartile range) NT-proBNP was 1294 (757-2246) pg/mL. NT-proBNP reduction was significantly greater in the empagliflozin group, compared with placebo, being 15% lower [95% confidence interval (CI) -4.4% to -23.6%] after adjusting for baseline NT-proBNP, sex, and diabetes status (P = 0.026). Absolute left-ventricular ejection fraction improvement was significantly greater (1.5%, 95% CI 0.2-2.9%, P = 0.029), mean E/e' reduction was 6.8% (95% CI 1.3-11.3%, P = 0.015) greater, and left-ventricular end-systolic and end-diastolic volumes were lower by 7.5â mL (95% CI 3.4-11.5â mL, P = 0.0003) and 9.7â mL (95% CI 3.7-15.7â mL, P = 0.0015), respectively, in the empagliflozin group, compared with placebo. Seven patients were hospitalized for heart failure (three in the empagliflozin group). Other predefined serious adverse events were rare and did not differ significantly between groups. CONCLUSION: In patients with a recent myocardial infarction, empagliflozin was associated with a significantly greater NT-proBNP reduction over 26 weeks, accompanied by a significant improvement in echocardiographic functional and structural parameters. CLINICALTRIALS.GOV REGISTRATION: NCT03087773.
Assuntos
Insuficiência Cardíaca , Infarto do Miocárdio , Humanos , Biomarcadores , Insuficiência Cardíaca/tratamento farmacológico , Infarto do Miocárdio/tratamento farmacológico , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos/uso terapêutico , Volume Sistólico , Função Ventricular EsquerdaRESUMO
Left ventricular hypertrabeculation/noncompaction (LVHT) is associated with arrhythmias. Guidelines for prevention of sudden cardiac death by implanted cardioverter-defibrillator (ICD) also apply to LVHT-patients. Right ventricular perforation by the ICD-lead is a matter of concern. Subcutaneous ICD (S-ICD) may overcome disadvantages of transvenous ICD in patients without a need for pacing therapy. We report a LVHT-patient with arterial hypertension, hyperlipidemia, coronary artery disease with an anterior-wall myocardial infarction 2004 and stroke without neurological deficits in 2018. Since ejection fraction of 33% remained unchanged despite bisoprolol, sacubitril/valsartan and spironolactone, he was treated with S-ICD for primary prevention of sudden cardiac death.
Assuntos
Morte Súbita Cardíaca/prevenção & controle , Desfibriladores Implantáveis , Síncope/terapia , Disfunção Ventricular Esquerda/terapia , Doença da Artéria Coronariana/complicações , Eletrocardiografia , Humanos , Hiperlipidemias/complicações , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Acidente Vascular Cerebral/complicações , Disfunção Ventricular Esquerda/diagnóstico por imagemAssuntos
Insuficiência Cardíaca , Miosite , Arterite de Takayasu , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/etiologia , Humanos , Extremidade Inferior , Miosite/complicações , Miosite/diagnóstico , Arterite de Takayasu/complicações , Arterite de Takayasu/diagnóstico , Arterite de Takayasu/tratamento farmacológicoRESUMO
AIMS: Through a 4-year follow-up of the abstracts submitted to the European Society of Cardiology Congress in 2006, we aimed at identifying factors predicting high-quality research, appraising the quality of the peer review and editorial processes, and thereby revealing potential ways to improve future research, peer review, and editorial work. METHODS AND RESULTS All abstracts submitted in 2006 were assessed for acceptance, presentation format, and average reviewer rating. Accepted and rejected studies were followed for 4 years. Multivariate regression analyses of a representative selection of 10% of all abstracts (n= 1002) were performed to identify factors predicting acceptance, subsequent publication, and citation. A total of 10 020 abstracts were submitted, 3104 (31%) were accepted for poster, and 701 (7%) for oral presentation. At Congress level, basic research, a patient number ≥ 100, and prospective study design were identified as independent predictors of acceptance. These factors differed from those predicting full-text publication, which included academic affiliation. The single parameter predicting frequent citation was study design with randomized controlled trials reaching the highest citation rates. The publication rate of accepted studies was 38%, whereas only 24% of rejected studies were published. Among published studies, those accepted at the Congress received higher citation rates than rejected ones. CONCLUSIONS: Research of high quality was determined by study design and largely identified at Congress level through blinded peer review. The scientometric follow-up revealed a marked disparity between predictors of full-text publication and those predicting citation or acceptance at the Congress.
Assuntos
Pesquisa Biomédica/normas , Cardiologia/normas , Editoração/normas , Pesquisa Biomédica/estatística & dados numéricos , Políticas Editoriais , Feminino , Humanos , Fator de Impacto de Revistas , Masculino , Revisão por Pares , Editoração/estatística & dados numéricos , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Análise de Regressão , Fatores SexuaisRESUMO
Left ventricular (LV)-thrombi occur in up to 14 % of patients with acute myocardial infarction (AMI) in the era of primary percutaneous coronary intervention. For these patients, anticoagulant therapy (AC) is recommended by AMI-guidelines. When, despite AC, LV-thrombi lead to embolism, surgical thrombectomy is an option, which is not mentioned or not recommended in AMI-guidelines. We report a 46-year old female patient with AMI. An 80 % stenosis of the proximal left anterior descending coronary artery was treated by a drug-eluting stent. Thrombi within the akinetic LV-apex became mobile despite AC and dual antiplatelet therapy, and a cerebellar stroke occurred. By a transmitral surgical approach with endoscopic assistance the thrombi were completely removed. Postoperative course and 12-months follow-up were uneventful. LV-thrombi should be observed carefully regarding changes in morphology. Surgical thrombectomy of LV-thrombi is a rare treatment option to prevent imminent embolism. Benefits versus risks of surgical removal of LV-thrombi need to be carefully weighted.
Assuntos
Stents Farmacológicos , Embolia , Infarto do Miocárdio , Acidente Vascular Cerebral , Trombose , Feminino , Humanos , Pessoa de Meia-Idade , Infarto do Miocárdio/terapia , Infarto do Miocárdio/cirurgia , Trombectomia/efeitos adversos , Infarto Cerebral , Acidente Vascular Cerebral/diagnóstico por imagem , Acidente Vascular Cerebral/etiologiaRESUMO
To compare retinal microvascular perfusion between the eyes of hypertensive patients with and without chronic kidney disease (CKD), the vessel density (VD) and fractal dimension (FD) of the superficial (SVP) and deep retinal vascular plexus (DVP) were analyzed on 6 × 6 mm fovea-centered optical coherence tomography angiography (OCTA) images of patients with hypertension. The retina was divided into an inner ring (IR) and outer ring (OR) according to the Early Treatment of Diabetic Retinopathy Study grid. The glomerular filtration rate (GFR) was determined and CKD was diagnosed (GFR < 60 mL/min/1.73 m2). Ninety-six eyes from 52 patients with hypertension were included in this analysis. Twenty patients (n = 37 eyes) were diagnosed with CKD. The mean age was 69 ± 11.7 years and 60.4 ± 9.2 years in the CKD group and in the control group, respectively. The univariate model revealed a significant difference in VD between patients without and with CKD in the superficial IR (0.36 ± 0.03 vs. 0.34 ± 0.04, p = 0.03), the superficial OR (0.35 ± 0.02 vs. 0.33 ± 0.04, p = 0.02), the deep OR (0.24 ± 0.01 vs. 0.23 ± 0.02, p = 0.003), and the FD in the SVP (1.87 ± 0.01 vs. 1.86 ± 0.02, p = 0.02) and DVP (1.83 ± 0.01 vs. 1.82 ± 0.01, p = 0.006). After adjusting for age and sex, these differences did not remain statistically significant. Similar results were observed for the FD in the SVP and DVP. In our cohort, patients with hypertension and CKD did not differ from patients without CKD in regard to microvascular perfusion status in the macular area as assessed using OCTA.
RESUMO
Congestive heart failure developing after acute myocardial infarction (AMI) is a major cause of morbidity and mortality. Clinical trials of cell-based therapy after AMI evidenced only a moderate benefit. We could show previously that suspensions of apoptotic peripheral blood mononuclear cells (PBMC) are able to reduce myocardial damage in a rat model of AMI. Here we experimentally examined the biochemical mechanisms involved in preventing ventricular remodelling and preserving cardiac function after AMI. Cell suspensions of apoptotic cells were injected intravenously or intramyocardially after experimental AMI induced by coronary artery ligation in rats. Administration of cell culture medium or viable PBMC served as controls. Immunohistological analysis was performed to analyse the cellular infiltrate in the ischaemic myocardium. Cardiac function was quantified by echocardiography. Planimetry of the infarcted hearts showed a significant reduction of infarction size and an improvement of post AMI remodelling in rats treated with suspensions of apoptotic PBMC (injected either intravenously or intramoycardially). Moreover, these hearts evidenced enhanced homing of macrophages and cells staining positive for c-kit, FLK-1, IGF-I and FGF-2 as compared to controls. A major finding in this study further was that the ratio of elastic and collagenous fibres within the scar tissue was altered in a favourable fashion in rats injected with apoptotic cells. Intravenous or intramyocardial injection of apoptotic cell suspensions results in attenuation of myocardial remodelling after experimental AMI, preserves left ventricular function, increases homing of regenerative cells and alters the composition of cardiac scar tissue. The higher expression of elastic fibres provides passive energy to the cardiac scar tissue and results in prevention of ventricular remodelling.
Assuntos
Apoptose , Elastina/biossíntese , Leucócitos Mononucleares/transplante , Infarto do Miocárdio/terapia , Miocárdio/metabolismo , Remodelação Ventricular , Animais , Células Cultivadas , Cicatriz/metabolismo , Colágeno/biossíntese , Ecocardiografia , Humanos , Leucócitos Mononucleares/fisiologia , Masculino , Infarto do Miocárdio/patologia , Infarto do Miocárdio/fisiopatologia , Ratos , Ratos Sprague-Dawley , SuspensõesRESUMO
OBJECTIVES: We wanted to test whether there is a difference between the total number and duration of malfunctions and a correlation between the oxygen saturation and pulse rate values of two new generation pulse oximeters (Masimo 'Radical 7' and Nellcor 'N 600') during emergency ambulance transportation. METHODS: Patients were monitored with two pulse oximeters ('Radical 7' and 'N 600') on different randomly selected fingers of the same hand during transportation. Data of both devices were recorded continuously by a laptop computer. RESULTS: Fifty-two patients with signs of peripheral vasoconstriction (including 22 patients with a blood pressure ≤100/60) were included. There were 0.21 ± 0.72 (0-4) malfunctions per patient lasting for a mean 113.55 ± 272.55 s in the 'Radical 7' and 0.13 ± 0.49 (0-3) malfunctions per patient with a mean duration of 301.0 ± 426.58 s in the 'N 600'. Oxygen saturation and pulse rate values correlated significantly [r² = 0.9608 (SpO2), r² = 0.9608 (pulse rate)] between the devices and showed a bias of -0.177770 (SpO2) and 0.310883 (pulse rate) with a standard deviation of 1.68367 (SpO2) and 4.46532 (pulse rate) in a Bland-Altman test. CONCLUSION: Although number and duration of malfunctions did not differ significantly between the devices, they showed a very low number of malfunctions even in hypotensive patients with peripheral vasoconstriction. Oxygen saturation correlated significantly in the two devices investigated at 49.409 time points. In addition, pulse rate also correlated significantly.
Assuntos
Ambulâncias , Serviços Médicos de Emergência/métodos , Oximetria/instrumentação , Adulto , Idoso , Desenho de Equipamento , Falha de Equipamento , Feminino , Frequência Cardíaca , Humanos , Hipotensão/complicações , Masculino , Microcomputadores , Pessoa de Meia-Idade , Oximetria/métodos , Oxigênio/sangue , Estudos Prospectivos , VasoconstriçãoRESUMO
In a previously healthy asymptomatic 18-year old male, Wolff-Parkinson-White syndrome (WPW) with left ventricular hypertrabeculation/noncompaction (LVHT) and systolic dysfunction was detected. Holter monitoring disclosed multiple long episodes of supraventricular tachycardia with a heart rate of about 110/min. After radiofrequency ablation of an epicardial posteroseptal accessory pathway with ante- and retrograde conduction, systolic function gradually normalized without any pharmacotherapy. After 32 months of follow-up, the patient remains asymptomatic with normal systolic function. WPW-induced tachycardiomyopathy may even occur in asymptomatic patients, who are so adapted to their arrhythmias that they do not recognize them.
RESUMO
BACKGROUND: Randomised controlled trials have shown diverse results for radial access in patients undergoing primary percutaneous coronary intervention (PPCI). Moreover, it is questionable whether radial access improves outcome in patients with cardiogenic shock undergoing PPCI. We aimed to investigate the outcome according to access site in patients with or without cardiogenic shock, in daily clinical practice. METHODS: For the present analysis we included 9,980 patients undergoing PPCI between 2012 and 2018, registered in the multi-centre, nationwide registry on PCI for myocardial infarction (MI). In-hospital mortality, major adverse cardiovascular events (MACE), and net adverse clinical events (NACE) until discharge were compared between 4,498 patients with radial (45%) and 5,482 patients with femoral (55%) access. RESULTS: Radial compared to femoral access was associated with lower in-hospital mortality (3.5% vs. 7.7%; P<0.01). Multivariable logistic regression analysis confirmed reduced in-hospital mortality [odds ratio (OR) 0.57, 95% confidence interval (CI): 0.43 to 0.75]. Furthermore, MACE (OR 0.60, 95% CI: 0.47 to 0.78) as well as NACE (OR 0.59, 95% CI: 0.46 to 0.75) occurred less frequently in patients with radial access. Interaction analysis with cardiogenic shock showed an effect modification, resulting in lower mortality in PCI via radial access in patients without, but no difference in those with cardiogenic shock (OR 1.78, 95% CI: 1.07 to 2.96). CONCLUSIONS: Radial access for patients with acute MI undergoing PPCI is associated with improved survival in a large contemporary cohort of daily practice. However, this beneficial effect is restricted to hemodynamically stable patients.
RESUMO
Left ventricular hypertrabeculation/noncompaction is a myocardial abnormality of unknown etiology/pathogenesis, which is frequently associated with neuromuscular disorders or chromosomal defects. LVHT in association with a MYOT mutation has not been reported. The patient is a 72-year-old male with a history of strabismus in childhood, asymptomatic creatine-kinase elevation since age 42 years, slowly progressive lower limb weakness since age 60 years, slowly progressive dysarthria and dysphagia since age 62 years, and recurrent episodes of arthralgias and myalgias since age 71 years. He also had arterial hypertension, diverticulosis, hyperlipidemia, coronary heart disease, and a hiatal hernia with reflux esophagitis. Clinical exam revealed mild quadruparesis and proximal wasting of the legs. Whole exome sequencing revealed a known variant in the MYOT gene. Muscle biopsy, previously assessed as inclusion body myopathy, was compatible with the genotype after revision. Cardiologic work-up revealed a left anterior hemiblock, mild myocardial thickening, and noncompaction. This case shows that myotilinopathy may manifest as a multisystem disease, including noncompaction.
RESUMO
The prognosis of patients with left ventricular hypertrabeculation/noncompaction (LVHT) is assessed controversially. LVHT is associated with other cardiac abnormalities and with neuromuscular disorders (NMD). Aim of the study was to assess cardiac and neurological findings as predictors of mortality rate in adult LVHT-patients. Included were patients with LVHT diagnosed between 1995 and 2019 in 1 echocardiographic laboratory. Patients underwent a baseline cardiologic examination and were invited for a neurological investigation. In January 2020, their survival status was assessed. End points were death or heart transplantation. LVHT was diagnosed by echocardiography in 310 patients (93 female, aged 53 ± 18 years) with a prevalence of 0.4%/year. A neurologic investigation was performed in 205 patients (67%). A specific NMD was found in 33 (16%), NMD of unknown etiology in 123 (60%) and the neurological investigation was normal in 49 (24%) patients. During follow-up of 84 ± 71 months, 59 patients received electronic devices, 105 patients died, and 6 underwent heart transplantation. The mortality was 4.7%/year, the rate of heart transplantation/death 5%/year. By multivariate analysis, the following parameters were identified to elevate the risk of mortality/heart transplantation: increased age (pâ¯=â¯0.005), inpatient (pâ¯=â¯0.001), presence of a specific NMD (pâ¯=â¯0.0312) or NMD of unknown etiology (pâ¯=â¯0.0365), atrial fibrillation (pâ¯=â¯0.0000), ventricular premature complexes (pâ¯=â¯0.0053), exertional dyspnea (pâ¯=â¯0.0023), left bundle branch block (pâ¯=â¯0.0201), and LVHT of the posterior wall (pâ¯=â¯0.0158). In conclusion, LVHT patients should be systematically investigated neurologically since neurological co-morbidity has a prognostic impact.
Assuntos
Fibrilação Atrial/epidemiologia , Bloqueio de Ramo/epidemiologia , Transplante de Coração/estatística & dados numéricos , Miocárdio Ventricular não Compactado Isolado/epidemiologia , Mortalidade , Doenças Neuromusculares/epidemiologia , Adulto , Idoso , Comorbidade , Ecocardiografia , Ecocardiografia Doppler , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Doenças Musculares/epidemiologia , Distrofia Muscular de Duchenne/epidemiologia , Distrofia Miotônica/epidemiologia , Atrofia Óptica Hereditária de Leber/epidemiologia , Síndrome Pós-Poliomielite/epidemiologia , Prognóstico , Modelos de Riscos ProporcionaisRESUMO
Using bone-avid radiotracers, cardiac transthyretin (TTR) amyloidosis can be diagnosed by scintigraphy, thus obviating endomyocardial biopsy. Radiotracer accumulation, however, may also be due to other causes. A 68-year-old male with acute myocardial infarction underwent recanalization of the left anterior descending coronary artery (LAD). Postinterventionally, transthoracic echocardiography showed hypokinesia of the septum and anterior wall and a thickened myocardium with granular sparkling appearance. Cardiac amyloidosis was suspected. A 99mTc-3,3-diphosphono-1,2-propanodicarboxylic acid whole-body scan 4 days after LAD recanalization showed Perugini 2 myocardial tracer uptake. Monoclonal gammopathy was excluded, and cardiac TTR amyloidosis was diagnosed. Three months later, 99m-Tc-hydroxydiphosphate scan showed no myocardial tracer uptake. Cardiac magnetic resonance imaging revealed late gadolinium enhancement within the LAD supply area. No mutation of the TTR gene was found. Suspicion of amyloidosis should consider not only echocardiography but also history and clinical findings. Myocardial oedema due to reperfusion should be acknowledged as a differential diagnosis for cardiac uptake of bone-avid radiotracers.
Assuntos
Infarto do Miocárdio , Pré-Albumina , Idoso , Neuropatias Amiloides Familiares , Meios de Contraste , Diagnóstico Diferencial , Edema , Gadolínio , Humanos , Masculino , Infarto do Miocárdio/complicações , Infarto do Miocárdio/diagnóstico , Miocárdio , Pré-Albumina/genéticaRESUMO
Multivessel coronary artery disease (MVCAD) is common in patients with ST-elevation myocardial infarction (STEMI), thereby negatively affecting mortality and outcome. Currently there is increasing evidence that complete revascularisation should be considered in haemodynamically stable patients. There are few larger randomised controlled trials available showing a lower risk of major adverse cardiac events after complete revascularisation, mainly driven by a reduction of repeat revascularisation. However, these trials are not adequately powered to show a mortality benefit or reduced risk of myocardial infarction. As there are several possible strategies, the presence of MVCAD often poses a therapeutic dilemma for interventional cardiologists and there is still ongoing debate on when and how to perform complete revascularisation. Pending further trials that may clarify which strategy is best, an individualised approach should be adopted.
Assuntos
Valva Aórtica , Oclusão de Enxerto Vascular/etiologia , Próteses Valvulares Cardíacas , Veia Safena , Adulto , Aorta Torácica , Bioprótese , Feminino , Implante de Prótese de Valva Cardíaca , Humanos , Infecções Estafilocócicas/cirurgia , Staphylococcus aureus , Trombose/microbiologia , Trombose/cirurgiaRESUMO
Randomized controlled trials have shown conflicting results regarding the outcome of bivalirudin in primary percutaneous coronary intervention (PPCI). The aim of this study was to evaluate the in-hospital outcomes of patients receiving heparin or bivalirudin in a real-world setting of PPCI: 7,023 consecutive patients enrolled in the Austrian Acute PCI Registry were included between January 2010 and December 2014. Patients were classified according to the peri-interventional anticoagulation regimen receiving heparin (n = 6430) or bivalirudin (n = 593) with or without GpIIb/IIIa inhibitors (GPIs). In-hospital mortality (odds ratio [OR] 1.13, 95% confidence interval [CI] 0.57 to 2.25, p = 0.72), major adverse cardiovascular events (OR 1.18, 95% CI 0.65 to 2.14, p = 0.59), net adverse clinical events (OR 1.01, 95% CI 0.57 to 1.77, p = 0.99), and TIMI non-coronary artery bypass graft-related major bleeding (OR 0.41, 95% CI 0.09 to 1.86, p = 0.25) were not significantly different between the groups. However, we detected potential effect modifications of anticoagulants on mortality by GPIs (OR 0.12, 95% CI 0.01 to 1.07, p = 0.06) and access site (OR 0.25, 95% CI 0.06 to 1.03, p = 0.06) favoring bivalirudin in femoral access. In conclusion, this large real-world cohort of PPCI, heparin-based anticoagulation showed similar results of short-term mortality compared with bivalirudin. We observed a potential effect modification by additional GPI use and access favoring bivalirudin over heparin in femoral, but not radial, access.
Assuntos
Heparina/administração & dosagem , Hirudinas/administração & dosagem , Pacientes Internados , Infarto do Miocárdio/terapia , Fragmentos de Peptídeos/administração & dosagem , Intervenção Coronária Percutânea/métodos , Antitrombinas/administração & dosagem , Áustria/epidemiologia , Relação Dose-Resposta a Droga , Feminino , Fibrinolíticos , Seguimentos , Mortalidade Hospitalar/tendências , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Razão de Chances , Estudos Prospectivos , Proteínas Recombinantes/administração & dosagem , Sistema de Registros , Taxa de Sobrevida/tendências , Resultado do TratamentoRESUMO
BACKGROUND: Reversible left ventricular dysfunction, also termed Takotsubo cardiomyopathy, is rarely reported in Addison's disease after initiation of hormone replacement therapy. The pathogenesis of this cardiomyopathy is unknown. CASE PRESENTATION: A 41-year-old white woman with a history of autoimmune Hashimoto thyroiditis diagnosed 3 years earlier and acute adrenal insufficiency diagnosed 3 weeks earlier presented with new onset of heart failure New York Heart Association class IV, which had started shortly after initiation of hormone replacement therapy with hydrocortisone 20 mg/day and fludrocortisone 0.3 mg/day. Nine days before admission she had collapsed because of dizziness and had a cerebral concussion and open fracture of her nasal bone, however, no further investigations were carried out at that time. A physical examination revealed leg edema, tachycardia, tachypnea, bilateral basal crepitations, and blood pressure 110/70 mmHg. An electrocardiogram showed sinus tachycardia, low voltage, negative T-waves in V5 and V6 and a corrected QT interval of 590 ms. Echocardiography revealed a reduced left ventricular systolic function with an ejection fraction of 30 %, and septal, apical, and anterior wall akinesia. Cardiac magnetic resonance imaging showed relative enhancement of gadolinium, indicating hyperemia and capillary leakage, and no myocardial scars. Because of the improvement in her cardiac function, lack of cardiovascular risk factors, and lack of signs for ischemia on magnetic resonance imaging, no coronary angiography was carried out. The results of sellar and renal magnetic resonance imaging were normal. Her troponin T was slightly elevated. Bisoprolol and ramipril were started. Her fludrocortisone dose was reduced to 0.05 mg/day. Her electrocardiogram and systolic function, documented by echocardiography and magnetic resonance imaging, normalized within 6 months. CONCLUSIONS: Although we could not exclude coronary artery disease by coronary angiography, her clinical course and instrumental findings suggest Takotsubo cardiomyopathy of the apical type. Fludrocortisone overdosage and increased myocardial vulnerability due to cortisol deficiency might be pathogenetic factors, whereas myocarditis is unlikely. When hormone replacement in patients with Addison's disease is initiated, cardiac function should be monitored by electrocardiogram and echocardiography.
Assuntos
Doença de Addison/tratamento farmacológico , Anti-Inflamatórios/efeitos adversos , Overdose de Drogas , Fludrocortisona/efeitos adversos , Insuficiência Cardíaca/induzido quimicamente , Cardiomiopatia de Takotsubo/induzido quimicamente , Doença de Addison/fisiopatologia , Adulto , Anti-Inflamatórios/administração & dosagem , Anti-Hipertensivos/administração & dosagem , Biomarcadores , Bisoprolol/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Fludrocortisona/administração & dosagem , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/etiologia , Humanos , Ramipril/administração & dosagem , Cardiomiopatia de Takotsubo/diagnóstico , Cardiomiopatia de Takotsubo/terapia , Resultado do TratamentoRESUMO
Atrial fibrillation (AF) is by far the most frequent heart rhythm disorder and is associated with a significantly increased risk of stroke, heart failure and death. Despite improvements in prevention and treatment, the prognosis has not changed significantly. To use new and promising pharmacological and interventional concepts for thromboembolic prophylaxis and treatment of AF, as well as prevention of recurrence, patient compliance has to be improved, physicians have to be trained and experience hast to be gained. A consistently carried 'anticoagulation pass' might be a promising piece of the puzzle.
Assuntos
Antiarrítmicos/uso terapêutico , Anticoagulantes/uso terapêutico , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/terapia , Estimulação Cardíaca Artificial/métodos , Ablação por Cateter/métodos , Tromboembolia/prevenção & controle , Fibrilação Atrial/complicações , Terapia Combinada/métodos , Humanos , Tromboembolia/diagnóstico , Tromboembolia/etiologiaRESUMO
BACKGROUND: Inflammation plays a key role in atherosclerosis. Sirt1 regulates transcription factors involved in inflammatory processes and blunts atherosclerosis in mice. However, its role in humans remains to be defined. This study was therefore designed to investigate the role of Sirt1 in the development of atherosclerosis. METHODS AND RESULTS: 48 male subjects admitted for cardiac catheterization were subdivided into healthy subjects, patients with stable coronary artery disease (CAD), and with acute coronary syndromes (ACS). Monocytes were isolated and Sirt1 mRNA levels were determined. Sirt1 gene expression was higher in healthy subjects as compared to patients with CAD or ACS (P<0.05), respectively. Interestingly, HDL levels correlated positively with Sirt1 expression. Thus, HDL from the three groups was isolated and incubated with THP-1 monocytes to determine the effects of HDL on Sirt1 protein in controlled experimental conditions. HDL from healthy subjects stimulated Sirt1 expression in THP-1 monocytes to a higher degree than HDL from CAD and ACS patients (P<0.05). Paraoxonase-1 (PON-1), a HDL-associated enzyme, showed a reduced activity in HDL isolated from CAD and ACS patients as compared to the controls (P<0.001). CONCLUSIONS: Monocytic Sirt1 expression is reduced in patients with stable CAD and ACS. Experiments on THP-1 monocytes suggest that this effect is HDL-dependent and is mediated by a reduced activity of HDL-associated enzyme PON1.
Assuntos
Doença da Artéria Coronariana/sangue , Lipoproteínas HDL/sangue , Monócitos/metabolismo , Sirtuína 1/sangue , Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/fisiopatologia , Idoso , Arildialquilfosfatase/genética , Arildialquilfosfatase/metabolismo , Doença da Artéria Coronariana/genética , Doença da Artéria Coronariana/fisiopatologia , Regulação da Expressão Gênica , Humanos , Masculino , Pessoa de Meia-Idade , Sirtuína 1/genéticaRESUMO
BACKGROUND: This study aimed at understanding whether investigators from less wealthy countries were at a disadvantage in disseminating their research, after accounting for potential differences in research quality and infrastructure. METHODS AND RESULTS: In this bibliometric analysis a representative random selection of 10% (n=1002 studies) of all abstracts submitted to the European Society of Cardiology (ESC) congress 2006 was followed for publication and citation from September 2006 to December 2011. The main variable of interest was the per-capita gross domestic product (GDP) of the country of the principal investigator. Using multivariable models that adjusted for socioeconomic indicators and previously identified markers of research quality, we examined the relationship between per-capita GDP and three study endpoints: Acceptance at the ESC congress, full-text publication, and number of two-year citations. Among 1002 abstracts from 63 countries, per-capita GDP was positively correlated with all three study endpoints. After adjusting for markers of research quality and infrastructure, per-capita GDP remained a strong predictor for acceptance at the ESC congress (adjusted OR for every 10,000 USD increase in per-capita GDP, 1.44; 95% CI, 1.15 to 1.80), full-text publication within 5years (adjusted OR, 1.49; 95% CI, 1.17 to 1.90), and high citation frequency (adjusted OR, 2.30; 95% CI, 1.31 to 4.04). These findings were largely consistent in a subgroup of abstracts of high-quality, prospective clinical trials. CONCLUSION: Investigators in less wealthy countries face challenges to disseminate their research, even after accounting for potential differences in the quality of their work and research infrastructure.