Related Experiment Video
Updated: Jul 13, 2026

06:11
Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
[Sinus rhythm variability in bronchial asthma].
Klinicheskaia Meditsina
|August 9, 2007
Summary
This study reveals that bronchial asthma (BA) patients exhibit significant sinus node dysregulation and impaired autonomic nervous system function. These findings highlight complex cardiovascular and autonomic alterations in asthma patients.
Area of Science:
- Cardiology
- Pulmonology
- Autonomic Neuroscience
Context:
- Bronchial asthma (BA) is a chronic respiratory disease affecting millions globally.
- Understanding the systemic impact of BA beyond the airways is crucial for comprehensive patient care.
- Autonomic nervous system (ANS) dysfunction is increasingly recognized as a comorbidity in various chronic diseases.
Purpose:
- To investigate the detailed cardiovascular and autonomic regulation patterns in patients with bronchial asthma.
- To assess sinus node function and sympathico-parasympathetic balance using advanced rhythmocardiography techniques.
- To identify specific pathophysiological responses to stimuli in BA patients.
Summary:
- A study involving 265 bronchial asthma patients utilized spirometry, peak-flowmetry, body plethysmography, EchoCG, and bronchoscopy.
- High-resolution rhythmocardiography with temporal statistical and spectral analysis of sinus rhythm variability was employed.
- Patients demonstrated sinus node dysregulation, insufficient vegetative support, and depressed peripheral sympathico-parasympathetic regulation, alongside heightened humoral-metabolic influence on the sinus node.
Impact:
- The findings suggest a significant role for autonomic dysfunction in the pathophysiology of bronchial asthma.
- This research may inform novel therapeutic strategies targeting the autonomic nervous system in BA management.
- Highlights the need for integrated cardiovascular and respiratory assessments in asthma patients.
Related Concept Videos
Dysrhythmias IV: Characteristics of Bradyarrhythmias
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
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, and...
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, and...
Dysrhythmias III: Characteristics of Dysrhythmias
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per minute.
Asthma I: Introduction
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Asthma III: Clinical Manifestations
Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Asthma-III: Symptoms and Complications
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Classification of Asthma

