Periodic breathing
Encyclopedia
Periodic breathing is an abnormal pattern of breathing characterized by oscillation of ventilation between hyperpnea
and hypopnea (not hyperpnea and Apnea
as in Cheyne-Stokes respiration
) with a crescendo-decrescendo pattern in the depth of respirations, to compensate for changing serum
partial pressure
s of oxygen
and carbon dioxide
.
Cheyne-Stokes respiration
and periodic breathing are known together as Central sleep apnoea syndrome (CSAS).
Hyperpnea
Hyperpnea or hyperpnoea is increased depth of breathing when required to meet metabolic demand of body tissues, such as during or following exercise, or when the body lacks oxygen , for instance in high altitude or as a result of anemia....
and hypopnea (not hyperpnea and Apnea
Apnea
Apnea, apnoea, or apnœa is a term for suspension of external breathing. During apnea there is no movement of the muscles of respiration and the volume of the lungs initially remains unchanged...
as in Cheyne-Stokes respiration
Cheyne-Stokes respiration
Cheyne-Stokes respiration is an abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing called an apnea. The pattern repeats, with each cycle usually taking 30 seconds to 2...
) with a crescendo-decrescendo pattern in the depth of respirations, to compensate for changing serum
Blood plasma
Blood plasma is the straw-colored liquid component of blood in which the blood cells in whole blood are normally suspended. It makes up about 55% of the total blood volume. It is the intravascular fluid part of extracellular fluid...
partial pressure
Partial pressure
In a mixture of ideal gases, each gas has a partial pressure which is the pressure which the gas would have if it alone occupied the volume. The total pressure of a gas mixture is the sum of the partial pressures of each individual gas in the mixture....
s of oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
and carbon dioxide
Carbon dioxide
Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom...
.
Cheyne-Stokes respiration
Cheyne-Stokes respiration
Cheyne-Stokes respiration is an abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing called an apnea. The pattern repeats, with each cycle usually taking 30 seconds to 2...
and periodic breathing are known together as Central sleep apnoea syndrome (CSAS).