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Diabetes and high blood pressure

People with diabetes are more likely to also have high blood pressure or hypertension.

High blood pressure can increase the risk of diabetes complications such as diabetic eye and kidney problems.

Managing blood pressure will be a part of a person's overall diabetes care plan.

Diabetes and high blood pressure complications

Having diabetes increases your risk of developing high blood pressure and other cardiovascular problems, because diabetes adversely affects the arteries, predisposing them to atherosclerosis - narrowing of the arteries. Atherosclerosis can cause high blood pressure, which if not treated, can lead to further blood vessel damage, and stroke, heart failure, heart attack, and kidney failure.

Compared with people with normal blood pressure readings, men and women with hypertension have an increased risk of:

Even high yet normal blood pressure or pre-hypertension (defined as 120-139/ 80-89 millimetres of mercury or mmHg) has an impact on your health. Studies show that people with normal yet high range blood pressure readings, over a 10-year period of follow up time, had a two to three-fold increased risk of heart disease.

What should blood pressure be if you have diabetes?

Blood pressure readings vary, but in general if someone has diabetes their blood pressure should be less than 130/80 mmHg. The first number is the "systolic pressure" or the pressure in the arteries when your heart beats and fills the arteries with blood. The second number is the "diastolic pressure" or the pressure in the arteries when your heart rests between beats, filling itself with blood for the next contraction.

Having normal blood pressure is as important in managing diabetes as having good control of your blood sugar when it comes to preventing diabetes complications.



What are the symptoms of high blood pressure?

Usually, high blood pressure causes no symptoms. That's why it's so important to have your blood pressure checked on a regular basis (during all visits to your doctor or diabetes nurse) and to follow your doctor’s recommendations on home blood pressure monitoring.

How is high blood pressure treated?

ACE (angiotensin converting enzyme) inhibitors are a group of drugs that are often used to treat high blood pressure in people with diabetes. Although other high blood pressure medications are available, ACE inhibitors have been shown to not only to be a useful drug to treat high blood pressure, but have been shown to prevent or delay the progression of kidney disease in people with diabetes.

Other medications used to treat high blood pressure in people with diabetes include a class of drugs called diuretics (‘water pills’).

Because adequate control of blood pressure usually requires more than one medication, most doctors use ACE inhibitors first then add other anti-hypertension drugs if necessary.

How do you prevent high blood pressure?

To help prevent high blood pressure:


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WebMD Medical Reference

Medically Reviewed by Dr Rob Hicks on December 22, 2017

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