Resistant hypertension needs special attention
Changing medications, extra tests sometimes needed to control blood pressure.
High blood pressure is like the proverbial genie in the bottle: hard to put back once it's out and about. At least half of the 80 million Americans with high blood pressure don't have it under control. Sometimes poor control stems from lack of trying. A growing number of people, though, have what's called resistant hypertension "" blood pressure that stays stubbornly above the target (see "Blood pressure goals") in spite of lifestyle changes and medications.
Persistently high blood pressure is a problem. It is a key contributor to stroke, heart failure, and other cardiovascular conditions.