White Coat Hypertension Diagnosis and Management

Definition and Diagnosis

The American College of Cardiology (ACC) and American Heart Association (AHA) define white coat hypertension as elevated office blood pressure (≥130/80 mmHg) but normal out-of-office blood pressure, with an average of 129/80 mmHg in home measurements and 131/83 mmHg in 24-hour ambulatory blood pressure monitoring (ABPM) 1.
The European Society of Cardiology (ESC) and European Society of Hypertension (ESH) also confirm white coat hypertension when office blood pressure is ≥130/80 mmHg but ambulatory or home blood pressure is <130/80 mmHg or <135/85 mmHg, respectively 1, 2.

Office blood pressure readings are elevated, with an average >130/80 mmHg 1.
Home blood pressure measurements have an average of 129/80 mmHg, which is within the normal range (<135/85 mmHg) 1, 2.
24-hour ABPM shows a mean diurnal blood pressure of 131/83 mmHg and a mean nocturnal blood pressure of 128/70 mmHg, with a reduced dipper pattern (+2%) 1, 2, 3.

The patient has a moderate risk profile, with factors such as age, obesity, sedentarism, and abnormal dipper pattern, but no established cardiovascular disease or chronic kidney disease 1, 3, 5.
The American Heart Association recommends lifestyle modifications, including weight loss, dietary changes, and increased physical activity, for patients with white coat hypertension 1.
The patient requires close follow-up, with regular home blood pressure monitoring and repeat ABPM in 6-12 months to detect potential progression to sustained hypertension 4, 5.

Although specific lifestyle modifications are not cited, the general approach for managing white coat hypertension includes dietary changes, such as the DASH diet, and increased physical activity 1.

White coat hypertension is associated with an intermediate cardiovascular risk between normotension and sustained hypertension, with a higher risk of cardiovascular events compared to normotensive individuals 5.
Approximately 30-40% of patients with white coat hypertension may progress to sustained hypertension within 5-10 years, especially if they have obesity and sedentarism 5.