SDB and hypertension

People with sleep-disordered breathing (SDB) have an increased risk of developing hypertension, independent of all relevant risk factors.1, 2, 3, 4  This risk is related to SDB severity; the more severe the SDB, the greater the risk of developing hypertension.2

During healthy sleep, blood pressure decreases, but SDB patients instead tend to experience:

  • elevated blood pressure during sleep2
  • prolonged cardiovascular stress, which can lead to increased blood pressure also occurring during the day1.

SDB is present in more than 30% of patients with hypertension,6 and in around 80% of patients with drug resistant hypertension.7 For this group of patients in particular, treatment with positive airway pressure therapy may be especially important.8, 5


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