Cheyne-Stokes respiration AKA periodic respiration. Cycles of respiration that increase deeper then shallower sometimes interupted by periods of apnoea.

About 50% of patients with moderate-to-severe congestive heart failure are affected by Cheyne-Stokes respiration, Cheyne-Stokes breathing is a pattern in which the breathing increases and decreases in depth however there are regular recurring periods when the patient does not breathe at all. Cheyne-Stokes breathing is usually associated with severe head trauma it interrupts the breathing centre in the brain and causes the irregular breathing pattern. It can also be related to acute mountain sickness when the body tries to compensate for the lower oxygen levels at higher altitudes …Excerpt from ‘First on Scene’ Distance learning course