在慢性血栓栓塞性肺病中,运动和脉动性肺血管负荷
Sinan Osman1,2, Natasha R Girdharry1,2, Elizabeth Karvasarski1,2
1Division of Cardiology Mount Sinai Hospital/University Health Network Toronto Ontario Canada.
在没有肺高血压的慢性血栓栓塞性肺病中,运动右心导管检查显示,在58%的患者中,潜伏的脉动性血管后负荷升高,比电阻升高更频繁.
科学领域:
- 心脏病学 心脏病学
- 肺部医学 肺部医学
- 血液动力学 血液动力学
背景情况:
- 慢性血栓栓塞性肺病 (CTEPD) 涉及到肺动脉中不溶解的血栓.
- 肺高血压 (PH) 在CTEPD中,称为CTEPH,涉及异常的脉动性后负荷和升高的PA压力.
- 在没有PH的CTEPD中了解肺血管后负荷对于早期检测和管理至关重要.
研究的目的:
- 为了调查在右心导管治疗 (RHC) 期间的运动是否揭示了CTEPD但没有PH的患者隐藏的肺血管后负荷异常.
- 为了比较运动RHC期间脉动和电阻后负载升高的频率.
- 评估肺静脉和PA血液动力学的相互依存生理学.
主要方法:
- 连续患有CTEPD但没有PH的患者进行炼RHC的回顾性分析.
- 根据运动期间特定的压力和流量标准,定义了潜在的电阻和脉动异常.
- 评估了PA合规性,肺血管阻力和阻力-合规性时间产物.
主要成果:
- 在没有PH的CTEPD患者中,58%的患者在运动RHC期间表现出潜伏的肺血管后负荷升高.
- 脉冲后负载升高 (53%) 明显比电阻升高 (13%) 更常见.
- 患有运动异常的患者表现出受损的PA遵守性和更高的肺血管抵抗性.
结论:
- 运动RHC有效地揭示了在没有PH的情况下CTEPD的亚临床肺血管余负荷异常.
- 在这个患者群体中,脉冲性异常比电阻性异常更为频繁.
- 这些发现凸显了在CTEPD管理中评估脉动性血液动力学的重要性.
更多相关视频
09:22Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
07:09Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
相关概念视频
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...
Pneumothorax-II
Clinical Manifestations:
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Chronic Obstructive Pulmonary Disease-I: Introduction
