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1.
Clin Res Cardiol ; 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-38117299

RESUMO

BACKGROUND: Anxiety and limited patient comprehension may pose significant barriers when informing elderly patients about complex procedures such as transcatheter aortic valve implantation (TAVI). OBJECTIVES: We aimed to evaluate the utility of medical graphics to improve the patient informed consent (IC) before TAVI. METHODS: In this prospective, randomized dual center study, 301 patients were assigned to a patient brochure containing medical graphics (Comic group, n = 153) or sham information (Control group, n = 148) on top of usual IC. Primary outcomes were patient understanding of central IC-related aspects and periprocedural anxiety assessed by the validated Spielberger State Trait Anxiety Inventory (STAI), both analyzed by cognitive status according to the Montreal Cognitive Assessment (MoCA). RESULTS: Patient understanding was significantly higher in the Comic group [mean number of correct answers 12.8 (SD 1.2) vs. 11.3 (1.8); mean difference 1.5 (95% CI 1.2-1.8); p < 0.001]. This effect was more pronounced in the presence of cognitive dysfunction (MoCA < 26) [12.6 (1.2) in the Comic vs. 10.9 (1.6) in the Control group; mean difference 1.8 (1.4-2.2), p < 0.001]. Mean STAI score declined by 5.7 (95% CI 5.1-6.3; p < 0.001) in the Comic and 0.8 points (0.2-1.4; p = 0.015) in the Control group. Finally, mean STAI score decreased in the Comic group by 4.7 (3.8-5.6) in cognitively impaired patients and by 6.6 (95% CI 5.8 to 7.5) in patients with normal cognitive function (p < 0.001 each). CONCLUSIONS: Our results prove beneficial effects for using medical graphics to inform elderly patients about TAVI by improving patient understanding and reducing periprocedural anxiety (DRKS00021661; 23/Oct/2020). Medical graphics entailed significant beneficial effects on the primary endpoints, patient understanding and periprocedural anxiety, compared to the usual patient informed consent (IC) procedure. Patient understanding of IC-related aspects was significantly higher in the Comic group, with a more pronounced benefit in patients with cognitive impairment (p for IC method and cognitive status < 0.001, respectively; p for IC method x MoCA category interaction = 0.017). There further was a significant decline of periprocedural anxiety in patients with and without cognitive impairment (p for IC method x measuring time point < 0.001; p for IC method x MoCA category x measuring time point interaction = 0.018).

2.
Front Cardiovasc Med ; 10: 1258890, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38155993

RESUMO

Introduction: Sudden cardiac arrest is a major cause of morbidity and mortality worldwide and remains a major public health problem for which better non-invasive prediction tools are needed. Primary preventive therapies, such as implantable cardioverter defibrillators, are not personalized and not predictive. Most of these devices do not deliver life-saving therapy during their lifetime. The individual relationship between fatal arrhythmias and cardiac function abnormalities in predicting cardiac death risk has rarely been explored. Methods: We retrospectively analyzed the measurements at rest for 191 patients with acute chest pain (ACP) magnetocardiographically. Our recently introduced analyses are able to detect inhomogeneities of the depolarization and repolarization. Moreover, electrically silent phenomena-intracellular ionic currents as well as vortex currents-can be measured and quantified. All included ACP patients were recruited in 2009 at Yonsei University Hospital and were followed up until 2022. Results: During half of the follow-up period (6.5 years), 11 patients died. Out of all the included nine clinical, eight magnetocardiographical, and nine newly introduced magnetoionographical parameters we tested in this study, three parameters revealed themselves to be outstanding at predicting death: heart rate-corrected QT (QTc) prolongation, depression of repolarization current IKr + IKs, and serum creatinine (all significant in Cox regression, p < 0.05). They clearly predicted cardiac death over the 6.5 years duration (sensitivity 90.9%, specificity 85.6%, negative predictive accuracy 99.4%). Cardiac death risk was more than ninefold higher in patients with low repolarization reserve and QTc prolongation in comparison with the remaining patients with ACP (p < 0.001). The non-parametric Kaplan-Meier statistics estimated significantly lower survival functions from their lifetime data (p < 0.001). Discussion: To the best of our knowledge, these are the first data linking magnetocardiographical and magnetoionographical parameters and subsequent significant fatal events in people, suggesting structural and functional components to clinical life-threatening ventricular arrhythmogenesis. The findings support investigation of new prevention strategies and herald those new non-invasive techniques as complementary risk stratification tools.

3.
Clin Res Cardiol ; 112(11): 1639-1649, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37422840

RESUMO

BACKGROUND AND AIMS: Low-density lipoprotein cholesterol (LDL-C) is the main therapeutic target in the treatment of hypercholesterolemia. Small interfering RNA (siRNA) inclisiran is a new drug, which targets PCSK9 mRNA in the liver, reducing concentrations of circulating LDL-C. In randomized trials, inclisiran demonstrated a substantial reduction in LDL-C. The German Inclisiran Network (GIN) aims to evaluate LDL-C reductions in a real-world cohort of patients treated with inclisiran in Germany. METHODS: Patients who received inclisiran in 14 lipid clinics in Germany for elevated LDL-C levels between February 2021 and July 2022 were included in this analysis. We described baseline characteristics, individual LDL-C changes (%) and side effects in 153 patients 3 months (n = 153) and 9 months (n = 79) after inclisiran administration. RESULTS: Since all patients were referred to specialized lipid clinics, only one-third were on statin therapy due to statin intolerance. The median LDL-C reduction was 35.5% at 3 months and 26.5% at 9 months. In patients previously treated with PCSK9 antibody (PCSK9-mAb), LDL-C reductions were less effective than in PCSK9-mAb-naïve patients (23.6% vs. 41.1% at 3 months). Concomitant statin treatment was associated with more effective LDL-C lowering. There was a high interindividual variability in LDL-C changes from baseline. Altogether, inclisiran was well-tolerated, and side effects were rare (5.9%). CONCLUSION: In this real-world patient population referred to German lipid clinics for elevated LDL-C levels, inclisiran demonstrated a high interindividual variability in LDL-C reductions. Further research is warranted to elucidate reasons for the interindividual variability in drug efficacy.


Assuntos
Anticolesterolemiantes , Inibidores de Hidroximetilglutaril-CoA Redutases , Humanos , LDL-Colesterol , Pró-Proteína Convertase 9 , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , RNA Interferente Pequeno/efeitos adversos , Anticolesterolemiantes/efeitos adversos
4.
Herzschrittmacherther Elektrophysiol ; 32(2): 244-249, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33977306

RESUMO

BACKGROUND: Three-dimensional mapping systems and the use of ultra-low dose radiation protocols have supported minimization of radiation dose during left atrial ablation procedures. By using optimal shielding, scattered radiation reaching the operator can be further reduced. This prospective study was designed to determine the remaining operator radiation exposure during left atrial catheter ablations using real-time dosimetry. METHODS: Radiation dose was recorded using real-time digital dosimetry badges outside the lead apron during 201 consecutive left atrial fibrillation ablation procedures. All procedures were performed using the same X­ray system (Siemens Healthineers Artis dBc; Siemens Healthcare AG, Erlangen, Germany) programmed with ultra-low dose radiation settings including a low frame rate (two frames per second), maximum copper filtration, and an optimized detector dose. To reduce scattered radiation to the operators, table-suspended lead curtains, ceiling-suspended leaded plastic shields, and radiation-absorbing shields on the patient were positioned in an overlapping configuration. RESULTS: The 201 procedures included 139 (69%) pulmonary vein isolations (PVI) (20 cryoballoon ablations, 119 radiofrequency ablations, with 35 cases receiving additional ablation of the cavotricuspid isthmus) and 62 (31%) PVI plus further left atrial substrate ablation. Mean radiation dose measured as dose area product for all procedures was 128.09 ± 187.87 cGy ∙ cm2 with a mean fluoroscopy duration of 9.4 ± 8.7 min. Real-time dosimetry showed very low average operator doses of 0.52 ± 0.10 µSv. A subanalysis of 51 (25%) procedures showed that the radiation burden for the operator was highest during pulmonary vein angiography. CONCLUSION: The use of ultra-low dose radiation protocols in combination with optimized shielding results in extremely low scattered radiation reaching the operator.


Assuntos
Fibrilação Atrial , Ablação por Cateter , Veias Pulmonares , Fibrilação Atrial/cirurgia , Fluoroscopia , Alemanha , Humanos , Estudos Prospectivos , Veias Pulmonares/cirurgia
5.
Med Klin Intensivmed Notfmed ; 115(2): 107-113, 2020 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-30483820

RESUMO

About every fifth ischemic stroke is caused by atrial fibrillation. Oral anticoagulation is highly effective in secondary stroke prevention, but a relevant portion of patients with atrial fibrillation is not (permanently) anticoagulated for a variety of reasons. Based on present evidence, no general recommendation can be given for left atrial appendage occlusion in patients with nonvalvular atrial fibrillation. However, left atrial appendage occlusion is a treatment option after severe anticoagulation-related bleeding, if the cause of bleeding is not treatable. Left atrial appendage occlusion is critical in patients with a relative contraindication for oral anticoagulation or lack of adherence to given medication. It seems to be important that further randomized studies confirm a benefit of left atrial appendage occlusion in selected patients with nonvalvular atrial fibrillation. In addition, it is vital to clarify whether discontinuation of antiplatelets is feasible after catheter-based left atrial appendage occlusion, as antiplatelets are associated with a risk of bleeding. Within this review article, we discuss present evidence, gaps of knowledge and provide an overview on ongoing clinical studies. In addition, we summarize the design of the CLOSURE-AF study. This randomized multicenter study will start recruitment soon and is funded by the German Center for Cardiovascular Research e. V.


Assuntos
Apêndice Atrial , Fibrilação Atrial/terapia , Acidente Vascular Cerebral/etiologia , Anticoagulantes/uso terapêutico , Humanos , Resultado do Tratamento
6.
Herz ; 44(4): 310-314, 2019 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-31076823

RESUMO

Atrial fibrillation is the most frequent cardiac arrhythmia worldwide, causing approximately 20% of all ischemic strokes. Therefore, oral anticoagulation is recommended in patients with atrial fibrillation with at least a moderate risk of stroke; however, there is a significant proportion of patients who cannot undergo long-term oral anticoagulation. As the left atrial appendage is of major relevance for atrial fibrillation-induced thrombus formation, catheter-based or surgical closure of the left atrial appendage appears to be a promising therapeutic option. Large registry studies including patients with catheter-based left atrial appendage closure have proven its effectiveness and a decreasing procedure-related complication rate. This review article summarizes the current knowledge and introduces major ongoing randomized studies, which will investigate the impact of left atrial appendage closure on stroke prevention. The authors hope that the results of the randomized CLOSURE AF trial, which is funded by the German Center for Cardiovascular Research e. V. and is now recruiting patients in Germany, will help to solve many of the currently prevalent clinical questions.


Assuntos
Apêndice Atrial , Fibrilação Atrial , Acidente Vascular Cerebral , Anticoagulantes , Apêndice Atrial/cirurgia , Fibrilação Atrial/complicações , Fibrilação Atrial/cirurgia , Alemanha , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/prevenção & controle , Resultado do Tratamento
7.
Internist (Berl) ; 59(10): 1028-1040, 2018 Oct.
Artigo em Alemão | MEDLINE | ID: mdl-30182193

RESUMO

In Germany more than 1.6 million patients suffer from atrial fibrillation (AF). Within the next decades this number will substantially increase due to current demographic trends with the increasing average age of the population. When untreated, patients with atrial fibrillation have a five times higher risk for stroke as compared with a control cohort. A potent stroke prevention therapy reducing the risk of stroke by approximately 70-80% is primarily treatment with new oral anticoagulants (NOACs). The risk scores for stroke (CHA2DS2-VASc) and major bleeding (HAS-BLED) in patients with atrial fibrillation share common variables, so that patients with the highest stroke risk often carry a very high bleeding risk. A significant number of patients (ca. 20-30%) are, however, not eligible for long-term anticoagulation, e.g. because of a high bleeding risk. For this population there is an urgent need for alternative stroke prevention strategies, such as catheter-based percutaneous left atrial appendage closure. Current data about the efficiency and safety of this treatment as well as a discussion of ongoing recruitment for randomized studies are discussed in this review.


Assuntos
Apêndice Atrial , Fibrilação Atrial , Acidente Vascular Cerebral , Administração Oral , Anticoagulantes , Alemanha , Humanos
8.
Herz ; 43(1): 11-19, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29236148

RESUMO

The duration and combination of dual antiplatelet therapy after coronary stent implantation, consisting of aspirin and a P2Y12 inhibitor, is among the most intensely investigated therapeutic strategies in cardiovascular medicine. While initial studies have mainly focused on the efficacy and safety of individual antithrombotic agents, the increased need for a personalized, risk-based approach to define the optimal duration of antithrombotic treatment according to the estimated ischemic and bleeding risk was then recognized. Recent recommendations for the optimal duration of antithrombotic combination therapies following coronary stent implantation in various clinical scenarios have substantially changed. The aim of the present article is to discuss the recent evidence from randomized clinical trials and observational studies with respect to antithrombotic treatment regimens in patients undergoing coronary artery stenting for stable coronary artery disease (CAD) or an acute coronary syndrome (ACS). We will focus on optimal treatment duration and a personalized approach based on ischemic and bleeding risk assessment.


Assuntos
Síndrome Coronariana Aguda/tratamento farmacológico , Doença das Coronárias/tratamento farmacológico , Intervenção Coronária Percutânea , Inibidores da Agregação Plaquetária/uso terapêutico , Aspirina/efeitos adversos , Aspirina/uso terapêutico , Clopidogrel/efeitos adversos , Clopidogrel/uso terapêutico , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Hemorragia/induzido quimicamente , Inibidores da Agregação Plaquetária/efeitos adversos , Cloridrato de Prasugrel/efeitos adversos , Cloridrato de Prasugrel/uso terapêutico , Fatores de Risco , Stents , Ticagrelor/efeitos adversos , Ticagrelor/uso terapêutico
9.
Herz ; 42(6): 607-620, 2017 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-28791432

RESUMO

For disorders of lipid metabolism the risk-adapted adjustment of low-density lipoprotein (LDL) cholesterol remains the primary treatment target, as a causal role in minimizing the progression of ACVD has been shown. Because of their efficacy in reducing cardiovascular morbidity and mortality, statins are recommended as first-line pharmacological treatment in dyslipidemias. Additionally, ezetimibe and proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition have been shown to significantly reduce cardiovascular events in high-risk patients. Life style changes can improve the plasma lipid profile, particularly in the setting of hypertriglyceridemia. Evaluation of high-density lipoprotein (HDL) cholesterol and lipoprotein(a) provides further information when assessing the individual cardiovascular risk, but direct evidence that pharmacologically targeting HDL cholesterol or Lp(a) results in a reduction of cardiovascular events has not yet been shown.


Assuntos
Dislipidemias/diagnóstico , Dislipidemias/tratamento farmacológico , Adulto , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Estudos Transversais , Dislipidemias/sangue , Dislipidemias/epidemiologia , Feminino , Alemanha , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipercolesterolemia/sangue , Hipercolesterolemia/diagnóstico , Hipercolesterolemia/epidemiologia , Hipercolesterolemia/terapia , Masculino , Fatores de Risco
10.
Int J Cardiol ; 243: 239-243, 2017 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-28592382

RESUMO

BACKGROUND: After electrical cardioversion (eCV) in patients with atrial fibrillation (AF), the risk for clinically apparent cerebral thromboembolism is increased in the subsequent weeks. To date, there is little evidence on the incidence of acute brain lesions (ABL) detected with cerebral magnetic resonance imaging (MRI) after eCV, in particular in patients treated with the Non-Vitamin K Antagonist oral anticoagulants (NOAC). AIMS: The aim of this pilot study was to evaluate the incidence of MRI-detected ABL, as well as the neuro-cognitive function after eCV in patients with persistent AF using NOACs as compared to phenprocoumon. METHODS AND RESULTS: 50 consecutive patients with persistent AF (mean age 69.6±3.5years, 26 male) were evaluated in this prospective study. Cerebral 3Tesla MRI and neuro-cognitive assessment using the National Institutes of Health Stroke Scale (NIHSS) score and the Montreal Cognitive Assessment Test (MoCA) were performed in all patients within 24h before eCV and after a median follow-up duration of 14days (Q1: 13, Q3: 19days). Patients were treated with an OAC for at least 4weeks after eCV and according to the CHA2DS2-Vasc-score thereafter. Thirty-nine patients were treated with NOACs (Dabigatran 10/50 [20%], Apixaban 21/50 [42%] and Rivaroxaban 8/50 [16]) and 11/50 patients with Phenprocoumon (22%). No patient developed ABL on cerebral MRI at the 2-week follow-up. Neurological as well as cognitive function were similar before and 2weeks after eCV (NIHSS-score: p=0.35; MoCa score: p=0.21). CONCLUSION: Electrical CV in patients with persistent AF, in particular when treated with NOACs, carries a low risk for the development of MRI-detected ABL or neurocognitive decline. CLINICAL TRIALS REGISTRATION: GermanClinicalTrialsRegister number: DRKS00010460.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/terapia , Encéfalo/diagnóstico por imagem , Cardioversão Elétrica/tendências , Imageamento por Ressonância Magnética/tendências , Testes de Estado Mental e Demência , Idoso , Fibrilação Atrial/fisiopatologia , Cardioversão Elétrica/efeitos adversos , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Transtornos Neurocognitivos/diagnóstico por imagem , Transtornos Neurocognitivos/etiologia , Transtornos Neurocognitivos/psicologia , Projetos Piloto , Estudos Prospectivos
11.
Herz ; 42(1): 58-66, 2017 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-27844137

RESUMO

BACKROUND: Each year 16-17 million determinations of high-density lipoprotein cholesterol (HDL-C) are conducted and interpreted in Germany. Recently acquired data have led to a fundamental reassessment of the clinical significance of HDL-C. METHOD: This review article is based on a selective literature search. RESULTS: Low HDL­C levels usually indicate an increased cardiovascular risk, particularly in primary prevention but the epidemiological relationship between HDL­C and the risk is complex. The HDL plays a role in the back transport and excretion of cholesterol; however, the biological functions of HDL are dependent on the protein and lipid composition, which is not reflected by the HDL­C concentration. If the composition of HDL is pathologically altered it can also exert negative vascular effects. CONCLUSION: Compared with low-density lipoprotein cholesterol (LDL-C), HDL­C is of secondary importance for cardiovascular risk stratification and the calculation of the LDL-C:HDL­C ratio is not useful for all patients. Low HDL­C levels should prompt a search for additional metabolic and inflammatory pathologies. An increase in HDL­C through lifestyle changes (e.g. smoking cessation and physical exercise) has positive effects and is recommended; however, HDL­C is currently not a valid target for drug therapy.


Assuntos
Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/mortalidade , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Biomarcadores/sangue , Doenças Cardiovasculares/diagnóstico , Medicina Baseada em Evidências , Humanos , Prevalência , Reprodutibilidade dos Testes , Fatores de Risco , Sensibilidade e Especificidade
12.
Herz ; 41(8): 671-676, 2016 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-27844136

RESUMO

Dyslipidaemia is a major cause of atherosclerotic cardiovascular disease and its progression towards clinical complications, such as acute coronary syndromes and stroke. In August 2016 the European Society of Cardiology (ESC) and the European Atherosclerosis Society (EAS) issued new joint guidelines for the management of dyslipidaemias. In these new guidelines, the concept of treating patients to a risk-based low-density lipoprotein (LDL) cholesterol target is reinforced. The task force considers LDL cholesterol as the primary target for dyslipidaemia treatment, whereas high-density lipoprotein (HDL) cholesterol is not recommended as a treatment target (based on the failure of HDL cholesterol elevation treatment strategies to reduce cardiovascular risk in recent studies). In patients with a very high risk for cardiovascular events it is recommended to treat to an LDL cholesterol target of less than 70 mg/dl. Moreover, the new guidelines now additionally recommend a > 50% reduction of LDL cholesterol in patients with very high cardiovascular risk patients and baseline levels between 70 and 135 mg/dl as well as in patients with high cardiovascular risk and baseline LDL cholesterol levels between 100 and 200 mg/dl. Statins are recommended as first-line medicinal treatment and the LDL cholesterol goals given imply the more frequent use of maximum tolerated statin therapy, in particular for patients with very high cardiovascular risk. Treatment with ezetimibe in patients with substantially elevated LDL cholesterol levels despite maximum tolerated statin therapy has now received a stronger recommendation (currently IIa recommendation). The guidelines also now include the potential use of the novel proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors and a recent ESC/EAS consensus document provides more detailed information on which patients can be considered for treatment with PCSK9 inhibitors, i. e. in particular patients with familial hypercholesterolemia and patients at very high cardiovascular risk who have markedly elevated LDL cholesterol levels despite maximum tolerated statin and ezetimibe therapy.


Assuntos
Anticolesterolemiantes/administração & dosagem , Cardiologia/normas , LDL-Colesterol/sangue , Dislipidemias/diagnóstico , Dislipidemias/terapia , Fidelidade a Diretrizes/normas , Biomarcadores/sangue , Técnicas de Diagnóstico Cardiovascular/normas , Dislipidemias/sangue , Europa (Continente) , Medicina Baseada em Evidências/normas , Alemanha , Humanos , Internacionalidade , Guias de Prática Clínica como Assunto
13.
Internist (Berl) ; 57(9): 844-55, 2016 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-27534868

RESUMO

In patients with nonvalvular atrial fibrillation, >90 % of thrombi are detected in the left atrial appendage (LAA). In particular these observations have resulted in the development of catheter-based LAA closure as an approach for stroke prevention in patients with nonvalvular atrial fibrillation in recent years. A preliminary randomized trial provided promising data with respect to efficacy and safety of this approach as compared to anticoagulation with warfarin. The safety of the procedure has been significantly improved in recent years due to procedural experience and refinement of implanted devices. In current clinical practice, this approach is particularly used for patients with nonvalvular atrial fibrillation, a significant ischemic risk (CHA2DS2-VASc score ≥2), and a high bleeding risk, i. e., in patients in whom there are relevant concerns with respect to long-term anticoagulation. The present article discusses the data from randomized clinical studies and registries, the present guideline recommendations, and the practical clinical use of LAA closure for stroke prevention.


Assuntos
Apêndice Atrial/cirurgia , Fibrilação Atrial/complicações , Fibrilação Atrial/terapia , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/prevenção & controle , Dispositivos de Oclusão Vascular , Cateteres Cardíacos , Medicina Baseada em Evidências , Humanos , Dispositivo para Oclusão Septal , Resultado do Tratamento
14.
Herz ; 41(4): 273-80, 2016 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-27215419

RESUMO

Disorders of lipid metabolism play a major role in the development and progression of coronary artery disease. Dyslipidemia therefore plays a central role in therapeutic approaches for prevention and treatment of cardiovascular events associated with coronary artery disease. Epidemiological studies have shown an association between various lipid metabolism parameters, the risk of developing coronary artery disease and progression of a pre-existing disease. In particular, increased levels of low-density lipoprotein cholesterol (LDL-C), reduced levels of HDL cholesterol (HDL-C), as well as high levels of triglycerides and increased lipoprotein(a) [Lp(a)] levels can be taken into account when assessing the risk stratification of patients for primary prevention of coronary artery disease. Lifestyle and dietary changes, intensified statin therapy and possibly the addition of ezetimibe remain the major interventions in both primary and secondary prevention of coronary artery disease, as they improve the prognosis particularly by lowering levels of LDL-C. Recently, genetic studies have contributed to extending our understanding of the relationship between lipid metabolism and coronary artery disease. A causal role for progression of coronary artery disease could be demonstrated for LDL-C, Lpa and triglyceride-rich lipoproteins (TRL), which could not be demonstrated for HDL-C in various studies. Furthermore, the effect of reduction of LDL-C by proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition and by the cholesteryl ester transfer protein (CETP) inhibitor anacetrapib on cardiovascular events is currently being investigated in large clinical outcome study programs.


Assuntos
Anticolesterolemiantes/uso terapêutico , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/epidemiologia , Metabolismo dos Lipídeos , Lipídeos/sangue , Pró-Proteína Convertase 9/sangue , Doença da Artéria Coronariana/prevenção & controle , Progressão da Doença , Medicina Baseada em Evidências , Humanos , Inibidores de PCSK9 , Prevalência , Reprodutibilidade dos Testes , Fatores de Risco , Sensibilidade e Especificidade , Resultado do Tratamento
16.
Int J Cardiol ; 199: 163-9, 2015 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-26197403

RESUMO

OBJECTIVE: Glipitins are widely used for the treatment of type 2 diabetic patients. In addition to their improvement of glycemic control, animal studies have suggested an independent anti-atherosclerotic effect of gliptins. Nevertheless, recent clinical trials regarding long-term effects of gliptin therapy on vascular events have been disappointing. This discrepancy led us to better dissect the functional role of SDF-1/CXCR4 signaling as a potential mechanism underlying gliptin action. The study should give improved understanding of the potential of gliptin therapy in the prevention and treatment of atherosclerosis. METHODS AND RESULTS: In an ApoE-/- mouse model on high cholesterol diet, long-term treatment with the DPP-4 inhibitor Sitagliptin significantly reduced atherosclerosic plaque load in the aorta. Flow cytometry analyses showed an enrichment of M2 macrophages in the aortic wall under gliptin therapy. Importantly, the number of recruited CD206+ macrophages was inversely correlated with total plaque area while no correlation was found for the overall macrophage population or M1 macrophages. Blockade of CXCR4/SDF-1 signaling by AMD3100 inhibited aortic M2 accumulation and the therapeutic effect of Sitagliptin. Correspondingly, Sitagliptin shifted the polarization profile of macrophages towards a M2-like phenotype. CONCLUSION: Sitagliptin-mediated inhibition of early atherosclerosis is based on M2-polarization during monocyte differentiation via the SDF-1/CXCR4 signaling. In contrast to earlier assumptions gliptin treatment might be especially effective in prevention of atherosclerosis.


Assuntos
Aterosclerose/tratamento farmacológico , Inibidores da Dipeptidil Peptidase IV/uso terapêutico , Macrófagos/metabolismo , Monócitos/metabolismo , Priming de Repetição/fisiologia , Animais , Aorta/efeitos dos fármacos , Apolipoproteínas E/genética , Aterosclerose/prevenção & controle , Quimiocina CXCL12/genética , Diabetes Mellitus Tipo 2/tratamento farmacológico , Inibidores da Dipeptidil Peptidase IV/administração & dosagem , Modelos Animais de Doenças , Citometria de Fluxo/métodos , Hipercolesterolemia/tratamento farmacológico , Incretinas/sangue , Incretinas/uso terapêutico , Resistência à Insulina/fisiologia , Macrófagos/efeitos dos fármacos , Masculino , Camundongos , Monócitos/efeitos dos fármacos , Placa Aterosclerótica/tratamento farmacológico , Receptores CXCR4/genética , Fosfato de Sitagliptina/administração & dosagem , Fosfato de Sitagliptina/uso terapêutico
18.
Herzschrittmacherther Elektrophysiol ; 26(2): 163-6, 2015 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-25801716

RESUMO

In this article the cases of two female patients with heart failure (functional class III) and an intrinsic complete left bundle branch block are reported. Both patients have had an implanted cardioverter defibrillator (ICD) connected to a VDD lead for primary prevention of sudden cardiac death. Atrial sensing was good/acceptable with a physiological frequency histogram and normal PQ time. A system upgrade to cardiac resynchronization therapy device (CRT) was planned. The VDD lead was directly connected to the Bivent ICD. The follow up showed stable measurements and a high biventricular pacing rate. Thus, usage of VDD leads for atrial sensing in CRT seems to be possible in a selected patient population.


Assuntos
Dispositivos de Terapia de Ressincronização Cardíaca , Terapia de Ressincronização Cardíaca/métodos , Eletrocardiografia/instrumentação , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/prevenção & controle , Idoso , Eletrocardiografia/métodos , Feminino , Átrios do Coração , Humanos , Pessoa de Meia-Idade , Resultado do Tratamento
20.
Internist (Berl) ; 55(5): 601-6, 2014 May.
Artigo em Alemão | MEDLINE | ID: mdl-24770979

RESUMO

Guidelines for the reduction of cholesterol to prevent atherosclerotic vascular events were recently released by the American Heart Association and the American College of Cardiology. The authors claim to refer entirely to evidence from randomized controlled trials, thereby confining their guidelines to statins as the primary therapeutic option. The guidelines derived from these trials do not specify treatment goals, but refer to the percentage of cholesterol reduction by statin medication with low, moderate, and high intensity. However, these targets are just as little tested in randomized trials as are the cholesterol goals derived from clinical experience. The same applies to the guidelines of the four patient groups which are defined by vascular risk. No major statin trial has included patients on the basis of their global risk; thus the allocation criteria are also arbitrarily chosen. These would actually lead to a significant increase in the number of patients to be treated with high or maximum dosages of statins. Also, adhering to dosage regulations instead of cholesterol goals contradicts the principles of individualized patient care. The option of the new risk score to calculate lifetime risk up to the age of 80 years in addition to the 10-year risk can be appreciated. Unfortunately it is not considered in the therapeutic recommendations provided, despite evidence from population and genetic studies showing that even a moderate lifetime reduction of low-density lipoprotein (LDL) cholesterol or non-HDL cholesterol has a much stronger effect than an aggressive treatment at an advanced age. In respect to secondary prevention, the new American guidelines broadly match the European guidelines. Thus, the involved societies from Germany, Austria and Switzerland recommend continuing according to established standards, such as the EAS/ESC guidelines.


Assuntos
Anticolesterolemiantes/administração & dosagem , Aterosclerose/sangue , Aterosclerose/prevenção & controle , Dietoterapia/normas , Hipercolesterolemia/sangue , Hipercolesterolemia/prevenção & controle , Guias de Prática Clínica como Assunto , Áustria , Cardiologia/normas , Humanos , Fatores de Risco , Suíça
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