空气污染对SPECT心肌 perfusion成像的临床影响
Océane Bouchot1, Stephan Gabet2, Loïc Djaileb3
1Department of Cardiology, Annecy Genevois Hospital, France.
Environment international
|March 24, 2025
概括
空气中的颗粒物污染,包括PM2.5,与中度至重度心肌缺血的几率增加有关. 这种联系在女性中尤为明显,这表明空气质量对心脏健康的性别特异性影响.
科学领域:
- 心脏病学 心脏病学
- 环境健康 环境健康
- 公共卫生 公共卫生
背景情况:
- 众所周知,空气污染是导致心血管疾病和死亡的重要因素.
- 以前的研究已经通过各种成像技术探索了空气污染对心血管功能的影响.
- 然而,空气污染对心肌 perfusion 的影响以前没有被研究过.
研究的目的:
- 调查暴露于环境空气污染物和心肌输液成像 (MPI) 参数之间的关系.
- 描述颗粒物 (PM2.5,PM10) 和二氧化 (NO2) 暴露以及心肌缺血的存在之间的关联.
- 探索性别和身体质量指数 (BMI) 对这些关联的潜在修饰作用.
主要方法:
- 在2017年至2020年期间,预期招募用于SPECT MPI的患者.
- 对中度至重度心肌缺血的评估,定义为>10%的缺血性心肌缺血.
- 使用高分辨率空气污染物分散模型和PM2.5,PM10和NO2的监测数据对参与者的家庭地址进行暴露评估.
- 多变量回归分析以确定关联,并对潜在的混因素进行调整,并对性别和BMI进行相互作用分析.
主要成果:
- 包括1585名参与者;9.3%患有中度至重度缺血症.
- 增加中度至重度缺血的几率与每次IQR增加的PM2.5 (ORa 1.39),PM10 (ORa 1.33) 和NO2 (ORa 1.22) 的更高暴露率有关.
- 在调整心脏代谢因素后,只有PM2.5仍然具有显著的相关性 (ORa 1.34).
- 在女性中观察到PM10/PM2.5和缺血之间更强烈的关联趋势.
结论:
- 颗粒气体空气污染暴露与中度至重度的心肌缺血有关.
- 这一发现提供了关于将空气污染与心血管风险联系起来的潜在机制的见解.
- 这种关联在女性中似乎更强烈,突出了潜在的性别特异性脆弱性.
更多相关视频
08:13In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
19.4K
11:09High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
Published on: December 16, 2022
2.8K
相关概念视频
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
76
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
76
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
90
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
90
01:20Imaging Studies for Cardiovascular System III: X-Ray
118
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
118