Related Experiment Video
Updated: Jun 27, 2025
07:41
Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
3.7K
Electrocardiographic abnormalities in patients with microtia.
Yang Yang1, Xiaoying Tian1, Pengfei Sun1
1Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100144, China.
Scientific Reports
|May 3, 2024
Summary
Patients with microtia (a congenital ear condition) show a higher incidence of electrocardiographic abnormalities, including right bundle branch block and sinus bradycardia, suggesting potential cardiac electrophysiology defects.
Area of Science:
- Cardiology
- Genetics
- Developmental Biology
Background:
- Microtia is a congenital condition affecting ear development.
- Cardiac maldevelopment can be associated with microtia.
- Electrocardiographic (ECG) abnormalities may indicate underlying cardiac issues.
Purpose of the Study:
- To investigate the incidence and characteristics of ECG abnormalities in microtia patients.
- To explore potential cardiac maldevelopment associated with microtia.
- To compare ECG abnormality rates between microtia patients and a control group.
Main Methods:
- Retrospective analysis of ECG reports from 10,151 patients (5598 microtia, 4553 control).
- Inclusion criteria: patients admitted to Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (Sept 2017-Aug 2022).
- Assessment of ECG abnormality types and prevalence.
Main Results:
- Microtia group had a significantly higher incidence of abnormal ECGs (18.3%) versus controls (13.6%).
- Excluding sinus irregularity, right bundle branch block was the most common abnormality (37.5%) in microtia patients.
- Other prevalent abnormalities included sinus bradycardia, ST-T wave changes, and atrial rhythm.
Conclusions:
- Microtia patients exhibit a higher prevalence of ECG abnormalities than the general population.
- These findings suggest potential congenital electrophysiological defects in the heart associated with microtia.
- Further investigation into cardiac electrophysiology in microtia is warranted.
Related Concept Videos
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
213
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,...
213
01:28Mechanism of Cardiac Arrhythmias
917
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
917
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
01:28Disturbances in Heart Rhythm
945
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
945
01:25Cardiovascular System Abnormal Findings II: Auscultation
139
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Abnormal Heart Sounds
Gallops:
139
01:28Electrocardiogram Fundamentals
572
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...
572