Hypopnea syndrome is a sleep disorder characterized by shallow breathing or reduced airflow during sleep. A hypopneic event is defined as a reduction in breathing of at least 30% for at least 10 seconds, accompanied by a drop in oxygen saturation of at least 4%. Hypopnea syndrome can lead to fragmented and disturbed sleep, which can result in excessive daytime sleepiness and decreased quality of life.
The exact cause of hypopnea syndrome is not well understood, but it is often associated with obesity, sleep apnea, and other factors such as aging, neck circumference, and the use of certain medications. In some cases, hypopnea syndrome can also be a symptom of a more serious underlying medical condition, such as heart or lung disease.
Diagnosis of hypopnea syndrome is typically made through a sleep study, in which a patient’s breathing and other physiological functions are monitored during sleep. Treatment for hypopnea syndrome may involve lifestyle changes, such as weight loss, avoidance of alcohol and sedatives, and changes in sleep position. In some cases, a continuous positive airway pressure (CPAP) device may be used to improve airflow during sleep. In severe cases, surgery or other medical interventions may be necessary.