CPAP May Prevent High Blood Pressure

Here are results from two European studies that suggest that treating obstructive sleep apnea with CPAP may prevent the onset of high blood pressure. One observational study showed that having normotensive patients with sleep apnea at baseline had a 29% lower risk of developing hypertension if they used CPAP after 12 years. Another randomized study showed an effect on preventing hypertension, but did not reach statistical significance. 

It’s difficult to interpret these results since no single study in particular will state flat out that CPAP prevents new onset hypertension. You have to look at multiple similar studies and conclude that statistically, you have a higher chance of having lower blood pressure the longer you use CPAP. The second study had much smaller subject numbers and since the effect size is so small to begin with, you’d have to have a much larger groups of subjects to see any statistically significant effect of CPAP therapy.

Anecdotally, I’ve had numerous patients that reported normalization of blood pressure (wether high or low) after surgical treatment for their obstructive sleep apnea. 

Did your blood pressure come down after you started using CPAP, dental appliances, or underwent surgery?

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2 thoughts on “CPAP May Prevent High Blood Pressure

  1. Using CPAP for 6 years. Hypertension therapy for 29 yrs and other correlating/confounding co-morbities have not yet changed and continue to persist. However, I had 45 years UARS/OSA prior (based on substantial medical history and misdiagnosis). The hypertension issues also appear for my pediatric and adolescent medical history, based on current guidelines and normal readings now in place.

    Also, I can also now add to my medical history an aggressive multi-cell testicular cancer, of which the OSA may have played a part in the development, and treatment with chemotherapy and surgery difficulties, and intensive salvage therapy. (Side note: my anesthesiologist for one of the surgeries was Dr. Mallampoti, and he asked me if I had a diagnosis or history of OSA prior to intubation.)

  2. I should clarify some medical points. I was originally dx with Essential or Idiopathic HPT. Told to reduce my sodium intake. Pediatric, Adolescent and Young Adult was within 18 to 23 BMI and as Young Adult within 5 to 15lbs over ideal weight.