Assessment of the Hemostatic System, Thromboembolic Complications and Cardiovascular Events in Patients With Cardiovascular Implantable Electronic Devices
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 250
- 试验地点
- 1
- 主要终点
- Development of thromboembolism: venous thrombosis, pulmonary embolism, arterial thrombosis, arterial thromboembolism, transient ischemic attack, stroke.
研究概览
简要总结
The hemostasis system is one of the many biological systems of the human body, designed to preserve the liquid state of blood and prevent its loss during vascular injuries. The ideal balance between its coagulant and anticoagulant components never occurs. In various diseases and pathological conditions, the balance of the hemostasis system may be disturbed. Shifts towards hypercoagulability lead to the development of hemorrhagic complications, opposite shifts lead to the development of thrombotic complications.
Patients with cardiac implantable electronic devices (CIED) are not rare and unique, today doctors meet with them every day. Its more than 1.5 million CIED's implanted every year.
Before surgery these patients are standard cardiology department patients with chronic heart failure (CHF), which develops due to the presence of arrhythmias, coronary heart disease, hypertension, congenital heart disease, myocardial infarction, myocarditis or other diseases and conditions. CHF is the most common, severe and unfavorable prognostic complication of these diseases. With CHF, the balance of the hemostasis system shifts towards hypercoagulation. Patients with CHF have an increased risk of arterial and venous thrombosis, pulmonary embolism, myocardial infarction, stroke, numerous brady- and tachyarrhythmias and other complications.
After CIED implantation, bradyarrhythmia is eliminated, as one of the parts in the pathogenesis of CHF. Patients, especially those with severe symptoms, improve their condition in the early postoperative period. In the long-term period, pacing, on the contrary, may contribute to the progression of CHF. The wrong choice of pacing mode or the place of electrode implantation can lead to desynchronization of the heart chambers, myocardial remodeling and left ventricular dysfunction.
Uncertainty is also observed in relation to the hemostasis system after CIED implantation. On the one hand, correction of bradyarrhythmia and CHF should provide patients with a shift towards hypocoagulability by normalizing the heart rate. On the other hand, trauma to the vessel wall during surgery, further placement of the CIED leads in the vessels, and perioperative stress can lead to even greater shifts towards hypercoagulation.
详细描述
250 patients of similar age, gender, and ethnicity will be divided into five groups: Group A1-3: 150 patients with indications for cardiac implantable electronic device (CIED) implantation; Group B: 50 patients with an CIED implanted 8-10 years ago; Group C: 50 patients with diseases similar to group A, but without indications for CIED implantation; Patients will be followed up for 2 years. Patients of group A1-3 will be taken peripheral venous blood to assess the studied parameters of hemostasis (platelet count, plateletcrit, mean platelet volume, platelet distribution width, von Willebrand factor, P-selectin, coagulation factor I (FI), coagulation factor II (FII), coagulation factor V (FV), coagulation factor VII (FVII), coagulation factor X (FX), coagulation factor VIII (FVIII), coagulation factor IX (FIX), coagulation factor XI (FXI), coagulation factor XII (FXII), plasminogen, soluble fibrin, plasminogen activator inhibitor-1 (PAI-1), D-dimer, antithrombin III, protein C) and duplex ultrasound of the vessels of the upper and lower extremities before the operation, after 7 days, 1 and 12 months after the operation. Similar procedures will be performed for patients of groups B and C only when included in the study. Echocardiography will be performed on all patients at enrollment, after 12 and 24 months of follow-up.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 40 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •for group A1-3: atrioventricular block/sick sinus syndrome/atrial fibrillation with impaired conduction as indications for cardiac implantable electronic device implantation;
- •for group B: atrioventricular block/sick sinus syndrome/atrial fibrillation with impaired conduction and cardiac implantable electronic device implanted 6-12 years ago;
- •for group C: atrioventricular block/sick sinus syndrome/atrial fibrillation with impaired conduction without indications for cardiac implantable electronic device implantation.
排除标准
- •active cancer or a remission period of less than 5 years;
- •decompensated somatic pathology;
- •pregnancy or breastfeeding in women.
结局指标
主要结局
Development of thromboembolism: venous thrombosis, pulmonary embolism, arterial thrombosis, arterial thromboembolism, transient ischemic attack, stroke.
时间窗: Up to 2 years after enrollment (according to the study design).
Development of thromboembolic complications after the cardiac implantable electronic device implantation/replace or thromboembolism in conservative group patients during observation period.
Development of cardiovascular event: myocardial infarction, acute coronary syndrome, atrial fibrillation, decompensation of chronic heart failure.
时间窗: Up to 2 years after enrollment (according to the study design).
Development of cardiovascular events after the cardiac implantable electronic device implantation/replace or in conservative group patients during observation period.
次要结局
- Hemostasis system markers deviations.(Up to 2 years after enrollment (according to the study design).)