METHOD FOR DETERMINING RESPIRATORY, CARDIOVASCULAR AND METABOLIC DISORDERS RISK DEGREE IN PATIENTS SUFFERING FROM DESTRUCTIVE RESPIRATION DISORDERS IN SLEEPING Russian patent published in 2007 - IPC A61B5/08 A61B5/145 

FIELD: medicine.

SUBSTANCE: method involves carrying out night breathing monitoring with night breathing pattern being studied including apnea-hypopnea index AHI, desaturation index DI, desaturation magnitude, apnea duration and minimum night oxygen saturation (S_aO₂) are determined. DI is defined as the number of episodes when S_aO₂ falls more than by 4% 1 h before sleep. AHI value being greater than 38 events/h; DI greater than 39 events/h; desaturation magnitude greater than 12%; apnea duration greater than 45 s; minimum S_aO₂ less than 65%, high risk of respiratory, cardiovascular and metabolic disorders is to be predicted in persons suffering from destructive respiration disorders in sleeping. AHI value being equal to 11-25 events/h; DI equal to 18-30 events/h; desaturation magnitude less than 10%; apnea duration less than 35 s; minimum S_aO₂ less than 70%, low risk of above mentioned disorders is to be predicted in persons suffering from destructive respiration disorders in sleeping.

EFFECT: high accuracy in determining risk level.

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