Natural Antibodies and Left Ventricular Assist Device Complications

Left ventricular assist devices (LVAD) are widely used as a bridge to heart transplantation or destination therapy for advanced heart failure. However, hemocompatibility-related complications such as pump thrombosis, stroke and bleeding remain frequent. We previously reported that LVAD implantation is followed by a sharp increase in serum levels of IgG natural antibodies (Nabs) recognizing oxidation-specific epitopes (OSE). Nabs have been implicated in inflammatory reactions related to atherosclerosis, ischemic stroke and primary graft dysfunction following heart transplantation.
Source: The Journal of Heart and Lung Transplantation - Category: Transplant Surgery Authors: Tags: 606 Source Type: research

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Int J Angiol DOI: 10.1055/s-0040-1708477Atrial fibrillation (AF), the most prevalent arrhythmic disease, tends to foster thrombus formation due to hemodynamic disturbances, leading to severe disabling and even fatal thromboembolic diseases. Meanwhile, patients with AF may also present with acute coronary syndrome (ACS) and coronary artery disease (CAD) requiring stenting, which creates a clinical dilemma considering that majority of such patients will likely receive oral anticoagulants (OACs) for stroke prevention and require additional double antiplatelet treatment (DAPT) to reduce recurrent cardiac events and in-stent th...
Source: International Journal of Angiology - Category: Cardiology Authors: Tags: Invited Papers Source Type: research
Anticoagulation for prevention of stroke is a well established modality of treatment in atrial fibrillation. But a significant number of them have bleeding complications. Hence the option of left atrial appendage closure with multiple types of devices have been developed. Left atrial appendage with its sluggish flow is the most common location for thrombus formation in atrial fibrillation. Following devices have been used with varying success: Watchman Amplatzer Cardiac Plug/Amulet Lariat suture ligation Atriclip PROTECT-AF (Watchman Left Atrial Appendage System for Embolic Protection in Patients With Atrial Fibrillatio...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology Source Type: blogs
Left ventricular assist devices (LVAD) are widely used as a support strategy for advanced heart failure. Complications such as thrombosis and bleeding have been linked to LVAD. We observed that LVAD implantation was followed by a sharp increase in serum levels of IgG natural antibodies (Nabs) recognizing oxidation-specific epitopes (OSE) and apoptotic cells. Nabs have been implicated in inflammatory reactions related to atherosclerosis, ischemic stroke and primary graft dysfunction following heart transplantation.
Source: The Journal of Heart and Lung Transplantation - Category: Transplant Surgery Authors: Tags: (1211) Source Type: research
This study included 1962 patients who underwent transesophageal echocardiographic examination (TEE) prior to cardioversion or ablation in the years 2014-2018 in three cardiac centers. RESULTS: More than a quarter of AF patients had decreased eGFR (
Source: Cardiology Journal - Category: Cardiology Authors: Tags: Cardiol J Source Type: research
Abstract BACKGROUND: The clinical efficacy of ticagrelor is questionable in East Asian populations. Patients with acute myocardial infarction (AMI) with multivessel disease (MVD) are considered as high risk patients who might benefit from ticagrelor treatment. The purpose of this study is to compare the clinical effect of ticagrelor and clopidogrel in AMI patients with MVD in Korea. METHODS AND RESULTS: A total of 2275 patients between November 2011 and June 2015, diagnosed with AMI with MVD after successful percutaneous coronary intervention who were registered in the Korea Acute Myocardial Infarction Regist...
Source: Journal of Cardiology - Category: Cardiology Authors: Tags: J Cardiol Source Type: research
Authors: Leebeek FWG, Muslem R Abstract Chronic heart failure (HF) is a growing health problem, and it is associated with high morbidity and mortality. Left ventricular assist devices (LVADs) are nowadays an important treatment option for patients with end-stage HF not only as a bridging tool to heart transplantation but also, as a permanent therapy for end-stage HF (destination therapy). The use of LVAD is associated with a high risk for bleeding complications and thromboembolic events, including pump thrombosis and ischemic stroke. Bleeding is the most frequent complication, occurring in 30% to 60% of patients, b...
Source: Hematology ASH Education Program - Category: Hematology Tags: Hematology Am Soc Hematol Educ Program Source Type: research
Abstract: Despite considerable progress in the field of heart failure about drugs and device therapy, the mortality rate of patients with heart failure remains high. Studies have shown that thromboembolism and stroke are associated with high mortality in patients with heart failure. Although warfarin therapy reduces the rate of ischemic stroke in patients with heart failure, the overall benefit from warfarin in this population seems to be offset by the increased bleeding risk. Thus, whether patients with chronic heart failure might benefit from anticoagulation, especially in patients with sinus rhythm, is still controver...
Source: Journal of Cardiovascular Pharmacology - Category: Cardiology Tags: Perspectives Source Type: research
Conclusion: Patients with prior stroke may be the preferred group for LAAC regardless of the presence or absence of contraindications for anticoagulant therapy.
Source: Cerebrovascular Diseases - Category: Neurology Source Type: research
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The same underlying molecular and cellular damage of aging contributes to both calcification of blood vessel walls and the development of atherosclerosis, but researchers here argue that calcification can be considered on its own, an independent risk factor for cardiovascular dysfunction and mortality in later life. The presence of senescent cells is one of the common underlying factors that accelerates the progression of both atherosclerosis and calcification of blood vessels. This is due to the inflammatory signaling produced by these cells. That signaling distorts the behavior of macrophages trying to clear up deposits ...
Source: Fight Aging! - Category: Research Authors: Tags: Daily News Source Type: blogs
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