Related Experiment Video
Updated: May 27, 2025

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
Periodic breathing during exercise in heart failure: beyond the classic risk factors
Marlus Karsten1,2, Elisabetta Salvioni2, Pietro Palermo2
1Department of Physiotherapy, Research Group on Cardiovascular Health and Exercise (GepCardio), Physiotherapy Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Florianopolis, SC, Brazil.
Abstract:
Periodic breathing is a peculiar ventilatory pattern in patients with heart failure (HF), characterized by cyclic oscillations in minute ventilation. This phenomenon has been observed in awake patients, during sleep, and during exercise. Periodic breathing during exercise, also known as exercise oscillatory ventilation (EOV), is an important marker of clinical and functional status, morbidity, and mortality in HF patients. However, a clear understanding of the meaning, causes, and possible occurrence of different forms of EOV is still currently lacking. This review focuses on what is known, likely known, or unknown about EOV in HF, including topics such as the definition of EOV, pathophysiological mechanisms, EOV phenotypes, treatment modalities, and the prognostic role of EOV in patients with HF. Finally, some perspectives on research opportunities and clinical practice are presented, to increase the knowledge of EOV, and the application of tools for its assessment, which may improve the chances of identifying and treating EOV, with a positive impact on patients with HF.
More Related Videos
04:20Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
Published on: October 1, 2019
07:09Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
Related Concept Videos
Hyperpnea and Hyperventilation
Alterations in Respiration II
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
Respiratory Volumes and Capacities I
Physical Assessment of the Respiratory Tract II: Inspection
Chest Configuration
The chest configuration...
Assessment of Ventilation II: Respiratory Depth and Rhythm
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:
Acute Respiratory Failure-II
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include: