Giga Health

The apnea hypopnea index or apnoea hypopnoea index ahi is an index used to indicate the severity of sleep apnea it is represented by the number of apnea and hypopnea events per hour of sleep. Below the form you can read more about this respiratory index and its usage. Apnea Hypopnea And Rera Defined Apnea Sleep Apnea Sleep Apnea An ahi less than 5 is considered normal and some patients with severe sleep apnea may be told by their doctor that they can accept even higher numbers so long as they re feeling more rested each morning experiencing fewer symptoms and their ahi is progressively decreasing. Ahi sleep apnea . Apnea hypopnea index ahi measures sleep apnea severity. Based on the ahi the severity of osa is classified as follows. It is generally expressed as the number of events per hour. The apneas pauses in breathing must last for at least 10 seconds and be associated with a decrease in blood oxygenation. Goal ahi to optimize cpap therapy. The ahi is the sum of the num...