心肺相互作用:基础知识和临床影响
Mathieu Jozwiak1,2, Jean-Louis Teboul3
1Service de Médecine Intensive Réanimation, CHU de Nice Hôpital Archet 1, 151 Route Saint Antoine de Ginestière, 06200, Nice, France. jozwiak.m@chu-nice.fr.
Annals of intensive care
|August 12, 2024
概括
心肺相互作用影响心血管和呼吸系统,在危急条件下影响血液动力学. 动态流体响应测试,使用这些相互作用,帮助流体管理在危急病患者,当限制是解决的.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 关键护理医学 关键护理医学
背景情况:
- 心肺相互作用涉及心血管和呼吸系统之间的相互作用.
- 胸内压力的呼吸系统变化会影响心脏功能和肺微血管.
- 通常情况下,这些相互作用会导致最小的血液动力学变化,但在COPD恶化或ARDS等疾病中可能是显著的.
研究的目的:
- 探索心肺相互作用的生理基础.
- 审查心肺相互作用的应用,以预测机械通风患者的流体反应.
- 讨论动态流体响应性测试的局限性和临床实用性.
主要方法:
- 分析连接呼吸和心脏功能的生理机制.
- 基于心肺相互作用的动态流体响应测试的审查,包括脉冲压力和中风体积的呼吸变化.
- 识别诸如低潮量,自发呼吸和心律失常等局限性的情况.
主要成果:
- 心肺相互作用在呼吸过程中显著改变了两个心室的前负荷和后负荷,特别是在机械呼吸的患者中.
- 动态流体响应测试,来自心肺相互作用,显示指导流体管理的希望.
- 常见的限制包括低潮量通风,自发呼吸和心律不整.
结论:
- 心肺相互作用在血液动力学中起着至关重要的作用,特别是在重症患者中.
- 利用这些相互作用的动态流体响应性测试是重症监护室流体管理决策的宝贵工具.
- 解决这些测试的局限性对于优化其在液体输送和提取方面的临床应用至关重要.
相关概念视频
Heart Failure Drugs: β-Blockers
326
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
326
Heart Failure Drugs: Inotropic Agents
548
Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
548
Pathophysiology of Cardiac Performance
623
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
623
Pathophysiology of Heart Failure
1.5K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
1.5K
Pulmonary Hypertension: Classification and Pathogenesis
162
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
162
Overview of the Heart
5.6K
The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's...
The heart's...
5.6K


