Can obstructive sleep apnoea cause hypertension?

When the airway closes during sleep, oxygen levels can fall and the body briefly shifts into an alert state. Heart rate and blood pressure may rise each time breathing resumes. Repeated episodes can place strain on the cardiovascular system. Hypertension also has many other causes, so this connection does not prove that sleep apnoea is the only explanation.

Have your blood pressure checked using a validated monitor and record readings as advised. Tell a clinician about snoring, gasping, morning headaches, poor sleep or daytime tiredness. They may arrange sleep testing and review medicines, weight, alcohol use and nasal symptoms. Take prescribed blood-pressure treatment as directed and never stop it because sleep apnoea is suspected.

Arrange a prompt review for persistently raised readings, difficult-to-control hypertension or witnessed pauses in breathing. Seek emergency help for very severe headache with confusion, chest pain, severe breathlessness, weakness on one side or trouble speaking. These symptoms may signal a serious problem rather than ordinary sleep disruption.

Could sleep apnoea be affecting my blood pressure? Do I need home monitoring or a sleep study? How will treatment be followed? Which medicines, alcohol or nasal problems might be contributing?