Related Experiment Video
Updated: Aug 29, 2025
09:13
Method to Obtain Pattern of Breathing in Senescent Mice through Unrestrained Barometric Plethysmography
Published on: April 28, 2020
6.7K
Cardiorespiratory Phase Synchronization in Elderly Patients with Periodic and non-Periodic Breathing Patterns
Summary
Cardiorespiratory Phase Synchronization (CRPS) quantifies heart-breathing coupling in elderly patients. Reduced synchronization indicates periodic breathing patterns, potentially linked to heart failure.
Area of Science:
- Cardiorespiratory Physiology
- Non-linear Dynamics
- Biomedical Signal Processing
Background:
- Cardiorespiratory Phase Synchronization (CRPS) reflects non-linear coupling between cardiac and respiratory systems.
- Distinguishing CRPS from Respiratory Sinus Arrhythmia (RSA) is crucial for understanding cardiorespiratory interactions.
- Periodic breathing patterns, such as Cheyne-Stokes Respiration (CSR), are common in elderly patients and associated with cardiac dysfunction.
Purpose of the Study:
- To investigate Cardiorespiratory Phase Synchronization (CRPS) in elderly patients with varying respiratory states.
- To assess the utility of CRPS measures in characterizing non-Periodic Breathing (nPB), Periodic Breathing (PB), and Cheyne-Stokes Respiration (CSR).
- To explore the potential of CRPS as a biomarker for cardiac decompensation in the elderly.
Main Methods:
- Analysis of CRPS in 45 elderly patients using electrocardiographic and respiratory signals.
- Computation of phase synchrograms via the Hilbert transform technique.
- Quantification of CRPS using average duration of synchronized epochs (AvgDurSync), percentage of synchronized time (%Sync), number of synchronized epochs (NumSync), and frequency ratio (FreqRat), with thresholds of 0.1 and 0.05, and a minimum duration of 10s.
Main Results:
- A decreasing trend in AvgDurSync and %Sync was observed with increasing respiratory periodicity.
- Patients with CSR exhibited the lowest AvgDurSync and %Sync values.
- CRPS measures effectively differentiated between breathing patterns in the studied elderly cohort.
Conclusions:
- CRPS analysis provides a valuable method for characterizing periodic respiratory patterns in elderly patients.
- Reduced CRPS may serve as an indicator of underlying cardiac dysfunction, particularly in patients with CSR.
- This approach offers potential for early detection and monitoring of cardiorespiratory health in geriatric populations.
Related Concept Videos
01:26Respiratory Volumes and Capacities I
1.1K
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...
1.1K
01:29Assessment of Ventilation II: Respiratory Depth and Rhythm
1.7K
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
1.7K
01:27Physical Assessment of the Respiratory Tract II: Inspection
392
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
Chest Configuration
The chest configuration...
392
01:30Alterations in Respiration II
986
There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
986
01:23Physiological Control of Respiration
2.3K
Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
2.3K
01:19Special considerations while measuring oxygen saturation
683
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
683