coronary vasodilator

简明释义

冠血管扩张药

英英释义

例句

1.Patients with coronary artery disease may benefit from coronary vasodilators as part of their treatment plan.

患有冠状动脉疾病的患者可能会从治疗方案中受益于冠状血管扩张剂。

2.A coronary vasodilator can help relieve angina by dilating the blood vessels.

一种冠状血管扩张剂可以通过扩张血管来缓解心绞痛。

3.Research indicates that coronary vasodilators can enhance myocardial perfusion.

研究表明，冠状血管扩张剂可以增强心肌灌注。

4.The doctor prescribed a coronary vasodilator to improve blood flow to the heart.

医生开了一种冠状血管扩张剂以改善心脏的血流。

5.During the stress test, the patient's response to the coronary vasodilator was monitored closely.

在压力测试中，患者对冠状血管扩张剂的反应被密切监测。

作文

The human body is a complex system where various physiological processes interact to maintain overall health. One of the critical aspects of cardiovascular health is the regulation of blood flow, particularly in the coronary arteries that supply blood to the heart muscle. In this context, the term coronary vasodilator refers to a substance or mechanism that causes the dilation of coronary blood vessels, thereby increasing blood flow to the heart. Understanding how coronary vasodilators work can provide insights into treatments for conditions such as angina and heart attacks. Coronary vasodilation is essential because the heart requires a constant supply of oxygen-rich blood to function effectively. When the coronary arteries constrict, it can lead to reduced blood flow, resulting in ischemia, which is a condition characterized by inadequate blood supply to the heart. This can cause chest pain, known as angina, and if left untreated, it may progress to more severe cardiac events.There are several types of coronary vasodilators, including medications like nitrates, calcium channel blockers, and adenosine. Nitrates, for instance, are commonly prescribed for angina relief as they relax the smooth muscles in the blood vessels, allowing them to widen. This widening reduces the workload on the heart and improves blood flow. Calcium channel blockers also play a significant role; they inhibit calcium from entering the cells of the heart and blood vessel walls, leading to decreased contraction and vasodilation.Adenosine, a naturally occurring nucleoside in the body, acts as a potent coronary vasodilator by binding to specific receptors on the vascular smooth muscle, causing relaxation and increased blood flow. The use of adenosine is particularly notable in medical settings, especially during certain diagnostic tests like stress tests, where it helps simulate exercise by increasing coronary blood flow.The importance of coronary vasodilators extends beyond just treating existing conditions. They are also crucial in preventive strategies for individuals at risk of cardiovascular diseases. By improving coronary blood flow, these agents can help maintain heart health and prevent the progression of atherosclerosis, which is the buildup of plaques in the coronary arteries.Moreover, lifestyle factors such as diet, exercise, and smoking cessation can complement the effects of coronary vasodilators. A heart-healthy diet rich in omega-3 fatty acids, antioxidants, and fiber can improve endothelial function, which is vital for the proper dilation of blood vessels. Regular physical activity enhances cardiovascular fitness and promotes the natural vasodilatory mechanisms of the body.In conclusion, the role of coronary vasodilators in cardiovascular health cannot be overstated. They are essential for ensuring adequate blood flow to the heart, particularly during times of increased demand. Understanding their mechanisms and implications can empower individuals to take proactive steps toward maintaining heart health. Whether through medication or lifestyle changes, promoting coronary vasodilation is a key strategy in preventing and managing heart disease, ultimately leading to improved quality of life and longevity.

人体是一个复杂的系统，各种生理过程相互作用，以维持整体健康。心血管健康的一个关键方面是血流的调节，特别是在供应血液到心肌的冠状动脉中。在这个背景下，术语冠状血管扩张剂指的是一种物质或机制，它导致冠状血管的扩张，从而增加对心脏的血流。了解冠状血管扩张剂的工作原理可以提供对治疗心绞痛和心脏病发作等疾病的洞察。冠状血管扩张对于心脏至关重要，因为心脏需要持续供应富含氧气的血液以有效运作。当冠状动脉收缩时，可能导致血流减少，导致缺血，这是一种特征为心脏供血不足的状态。这可能导致胸痛，即心绞痛，如果不加以治疗，可能会发展为更严重的心脏事件。有几种类型的冠状血管扩张剂，包括硝酸酯类药物、钙通道阻滞剂和腺苷。例如，硝酸酯类药物通常被开处方用于缓解心绞痛，因为它们放松血管平滑肌，使其扩张。这种扩张减轻了心脏的负担，并改善了血流。钙通道阻滞剂也发挥着重要作用；它们抑制钙进入心脏和血管壁细胞，导致收缩减少和血管扩张。腺苷是体内自然存在的核苷，通过与血管平滑肌上的特定受体结合，作为一种强效的冠状血管扩张剂，引起放松和血流增加。腺苷的使用在医疗环境中特别显著，尤其是在某些诊断测试（如运动测试）中，它通过增加冠状血流来帮助模拟运动。冠状血管扩张剂的重要性不仅限于治疗现有疾病。它们在心血管疾病高风险个体的预防策略中也至关重要。通过改善冠状血流，这些药物可以帮助维持心脏健康，防止动脉粥样硬化的发展，即冠状动脉中的斑块积聚。此外，饮食、运动和戒烟等生活方式因素可以补充冠状血管扩张剂的效果。富含Omega-3脂肪酸、抗氧化剂和纤维的心脏健康饮食可以改善内皮功能，这对血管的正常扩张至关重要。定期的身体活动增强心血管健康，并促进身体自然的血管扩张机制。总之，冠状血管扩张剂在心血管健康中的作用不可低估。它们对于确保心脏在需求增加时获得足够的血流至关重要。理解它们的机制和影响可以使个人采取主动措施来维持心脏健康。无论是通过药物还是生活方式的改变，促进冠状血管扩张是预防和管理心脏病的关键策略，最终将改善生活质量和延长寿命。