Related Experiment Video
Updated: Jul 17, 2026
08:47
Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
Published on: March 3, 2023
Heart rate variability in patients with allergic rhinitis
Mehmet Yokusoglu1, Sami Ozturkt, Mehmet Uzun
1Cardiology Department, Gulhane Military Medical Academy School of Medicine, Ankara, Turkey.
Military Medicine
|February 6, 2007
Summary
Patients with allergic rhinitis exhibit increased heart rate variability (HRV) indices, suggesting heightened parasympathetic activity. This indicates vagal activation extends beyond the respiratory system to influence cardiovascular function in allergic rhinitis.
Area of Science:
- Immunology
- Cardiology
- Autonomic Neuroscience
Background:
- Autonomic imbalance is implicated in hypersensitivity reactions.
- Allergic rhinitis is a common condition affecting the respiratory system.
Purpose of the Study:
- To investigate autonomic system function in allergic rhinitis patients.
- To analyze heart rate variability (HRV) using time-domain methods.
Main Methods:
- Enrolled 24 allergic rhinitis patients and 22 healthy controls.
- Conducted 24-hour ambulatory electrocardiographic recordings.
- Analyzed time-domain HRV indices.
Main Results:
- Patients with allergic rhinitis showed significantly greater root mean square successive difference, number of RR intervals >50ms, and percentage difference between adjacent normal RR intervals >50ms.
- Indices predicting parasympathetic predominance were elevated in the allergic rhinitis group.
- SD of normal RR intervals, SD of successive differences, and HRV triangular index did not differ significantly.
Conclusions:
- Increased HRV indices in allergic rhinitis suggest parasympathetic predominance.
- Vagal activation in allergic rhinitis impacts both nasal and cardiovascular systems.
- Autonomic nervous system plays a significant role in allergic rhinitis pathogenesis.
Related Concept Videos
01:30Factors Influencing Heart Rate
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
01:31Regulation of Heart Rates
The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
02:06Allergic Reactions
Overview
01:28Asthma 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...
01:13Asthma 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,...
01:26Respiratory Volumes and Capacities I
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...