hemodynamic

简明释义

英[ˌhemədaɪˈnæmɪk]美[ˌhiːmoʊdaɪˈnæmɪk]

adj. 血液动力学的

英英释义

单词用法

同义词

反义词

例句

1.As the hemodynamic factors have great relationship with aneurismal abiogenesis, it became the hotspot of aneurismal study in the world in recent years.

在各种影响因素中，血液动力学因素与该病的自然发生史密切相关，因而近年来成为国内外研究的热点。

2.It was shown that nifedipine is the best drug for decreasing blood pressure and improving hemodynamic parameters.

结果发现，硝苯吡啶降低血压，改善血流动力学效应最佳。

3.The improvement of clinical symptoms, arterial blood gas and hemodynamic effect was synchronic.

血流动力学效应与临床症状及动脉血气的改善同步。

4.This part included two experiments: 1. observe influence of heat stress on animal of chronic heart failure hemodynamic.

此部分分为两个实验：1 .热负荷对动物慢性心力衰竭血流动力学的影响。

5.Our objective was to use Doppler ultrasonography as a noninvasive procedure to provide renal hemodynamic information.

我们研究目的是用多普勒超声作为非侵入性检查方法来获取肾脏血液动力的信息。

6.Onset of anesthesia were observed, perfect time for local anesthetic dosage, hemodynamic changes before and after anesthesia.

观察两组麻醉起效、完善时间，局麻药用量，麻醉前后血流动力学变化。

7.Hemodynamic changes in the two groups no significant difference.

两组血流动力学变化比较差异无统计学意义。

8.The secondary end points were changes in hemodynamic variables as assessed by right heart catheterization.

次级终点是右心导管测量的血流动力学指标的改变。

9.Objective to probe into impact of risk factors for stroke on cerebrovascular hemodynamic indexes (CVHI).

目的探讨卒中危险因素对脑血管血液动力学指标(CVHI)的影响。

10.In critical care, maintaining hemodynamic stability is crucial.

在重症监护中，维持血流动力学稳定性至关重要。

11.The doctor explained how hemodynamic parameters affect blood pressure.

医生解释了血流动力学参数如何影响血压。

12.Abnormal hemodynamic responses can indicate heart failure.

异常的血流动力学反应可能表明心力衰竭。

13.The hemodynamic changes during exercise can help assess cardiovascular health.

运动期间的血流动力学变化可以帮助评估心血管健康。

14.The patient's hemodynamic stability was monitored closely after surgery.

手术后，患者的血流动力学稳定性被密切监测。

作文

Hemodynamics is a crucial concept in the field of medicine and physiology that refers to the dynamics of blood flow within the circulatory system. Understanding hemodynamic (血流动力学) principles is essential for healthcare professionals, especially those working in cardiology and critical care. The human body relies on a complex network of blood vessels, including arteries, veins, and capillaries, to transport oxygen and nutrients to tissues while removing waste products. This intricate system operates under specific physical laws that govern blood flow, pressure, and resistance.One of the primary factors affecting hemodynamic (血流动力学) conditions is blood pressure. Blood pressure is the force exerted by circulating blood on the walls of blood vessels. It is influenced by various factors, including cardiac output, blood volume, and vascular resistance. When a person experiences hypertension, or high blood pressure, it can lead to serious health issues such as heart disease, stroke, and kidney failure. Conversely, hypotension, or low blood pressure, may result in inadequate blood flow to vital organs, leading to dizziness, fainting, or shock.Cardiac output, defined as the volume of blood the heart pumps per minute, plays a significant role in hemodynamic (血流动力学) stability. It is determined by two main factors: heart rate and stroke volume. Heart rate is the number of beats per minute, while stroke volume is the amount of blood ejected with each heartbeat. A decrease in cardiac output can indicate heart failure or other cardiovascular problems, necessitating immediate medical intervention.Another important aspect of hemodynamic (血流动力学) assessment is systemic vascular resistance (SVR). SVR refers to the resistance that blood encounters as it flows through the peripheral blood vessels. Factors such as vessel diameter, blood viscosity, and overall vascular health can influence SVR. In cases of vasodilation, where blood vessels widen, SVR decreases, allowing for increased blood flow. Conversely, vasoconstriction narrows the vessels, increasing resistance and potentially raising blood pressure.Monitoring hemodynamic (血流动力学) parameters is vital in critical care settings, where patients may be at risk for severe cardiovascular events. Healthcare providers often use invasive methods, such as arterial catheters, to measure blood pressure directly and assess cardiac output accurately. Non-invasive techniques, such as echocardiography and Doppler ultrasound, are also employed to evaluate hemodynamic (血流动力学) function without the need for surgical intervention.In summary, hemodynamic (血流动力学) principles are fundamental to understanding how blood circulates throughout the body and how various factors can impact cardiovascular health. By comprehensively studying these dynamics, medical professionals can better diagnose and treat conditions that affect blood flow and pressure. As research advances, the importance of hemodynamic (血流动力学) monitoring will continue to grow, enhancing patient care and outcomes in various medical settings.