肺静脉大小和缩小的变化取决于肺静脉隔离前后的心脏周期
Kotaro Ouchi1, Toru Sakuma2, Shunsuke Kisaki2
1Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, 105-8461, Japan. kotaro-alex@jikei.ac.jp.
Heart and vessels
|March 25, 2024
概括
肺静脉维度 (PVD) 随心脏周期而变化,影响肺静脉隔离 (PVI) 后狭窄的评估. 测量应标准化到末缩框架,以避免低估PV狭窄.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 胸部外科手术 胸部外科手术
背景情况:
- 精确的肺静脉维度 (PVD) 测量对于评估狭窄和肺静脉隔离 (PVI) 疗效至关重要.
- 心脏周期对肺静脉 (PV) 形态在PVI前后的影响需要进行定量评估.
研究的目的:
- 在PVI前后的心脏周期期间调查PV骨质大小的变化.
- 通过心脏计算机断层扫描 (CT) 来评估心脏周期对PV狭窄和减少率的影响.
主要方法:
- 在PVI之前和之后进行心脏CT的68名心房动患者的回顾性分析.
- 测量最大和最小的PVD在每个PV段在末缩和末腹缩.
- 计算PVD减速率 (ΔPVD) 来评估狭窄.
主要成果:
- 在PVI之前,PV尺寸从末缩到末腹缩显著减少.
- 在PVI后,从静脉缩到静脉缩结束的右侧PVs中观察到显著的维度减小.
- 对于大多数PVs来说,尺寸分类狭窄的减少率在终止腹痛时明显低于终止心痛时.
结论:
- 心脏周期显著影响PVD评估和PVI后PVD狭窄评估.
- 建议将PVD测量标准化到末缩框架,以防止低估PV狭窄.
- 一致的测量时间确保了PVI后准确的患者管理和随访.
相关概念视频
Cardiac Catheterization II: Right Heart Catheterization
2.2K
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
2.2K
Mitral Stenosis I: Introduction
1.8K
Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
1.8K
Mitral Stenosis II: Clinical features and Diagnostic Tests
557
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
557


