Objectives Apparent treatment-resistant hypertension (aTRH) is defined as uncontrolled hypertension (HTN) despite the use of three or more antihypertensive medication classes or controlled HTN after treatment with four or more antihypertensive medication classes. The increasing prevalence of HTN as well as aTRH is mainly due to a lack of understanding about the disease, insufficient patient education programs, low economic status, etc., which might even lead to medication non-adherence. Assessin