Related Experiment Video
Updated: Jul 5, 2025
04:33
Effects of Different Connection Modes of Electroacupuncture on Electrocardiogram and Nerve Discharge in Rats
Published on: January 3, 2025
221
The Association Between Urbanization and Electrocardiogram Abnormalities in China: a Nationwide Longitudinal Study
Jiarun Mi1, Xueyan Han1, Man Cao1
1School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China.
Summary
Urbanization may reduce cardiovascular risks. Higher impervious surfaces and nighttime light correlated with fewer electrocardiogram (ECG) abnormalities in Chinese adults, suggesting urbanization benefits heart health.
Area of Science:
- Environmental Health
- Cardiovascular Epidemiology
- Urban Studies
Background:
- The health impacts of urbanization are debated, with limited research on its association with subclinical cardiovascular disease risks like electrocardiogram (ECG) abnormalities.
- Understanding this relationship is crucial for public health strategies in rapidly urbanizing regions.
Purpose of the Study:
- To investigate the association between urbanization levels and the prevalence of ECG abnormalities in Chinese adults.
- To quantify the risk of cardiovascular disease indicators associated with urbanization.
Main Methods:
- Utilized data from the China National Stroke Screening Survey (CNSSS).
- Assessed urbanization using satellite-derived impervious surfaces rate and nighttime light data.
- Employed statistical models to analyze the relationship between urbanization metrics and ECG abnormalities.
Main Results:
- An increased impervious surfaces rate showed a decreased risk of ECG abnormalities (OR=0.894, 95% CI: 0.869-0.920).
- Higher nighttime light intensity also correlated with reduced ECG abnormalities (OR=0.809, 95% CI: 0.772-0.847).
- A U-shaped nonlinear relationship was observed between impervious surfaces rate and ECG abnormalities.
Conclusions:
- Current urbanization levels in China appear to be a protective factor against cardiovascular risks, specifically reducing ECG abnormalities.
- Findings suggest that urbanization, within the studied range, is associated with improved cardiovascular health outcomes.
Related Concept Videos
01:29Electrocardiogram
2.3K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.3K
01:28Electrocardiogram Fundamentals
600
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
600
01:26Longitudinal Studies
165
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
165
01:25Correlation between ECG and Cardiac Cycle
5.4K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
5.4K
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
216
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
216