[Treatment resistant hypertension. Value of a new treatment concept].

Sympathetic overexpression can be found in a majority of hypertensive patients. Resistant arterial hypertension requires a targeted diagnostic procedure in order to exclude secondary causes of hypertension which can be treated specifically with established therapies. If secondary reasons are not identified, the antihypertensive medication is already optimal and lifestyle changes have been realized, but still the goal of antihypertensive therapy cannot be achieved, alternative invasive therapy strategies such as renal sympathetic denervation and baroreflex activation have been developed to achieve blood pressure control. These therapies are restricted to specialized centers which treat well-defined patients with therapy-resistant hypertension. Little long-term data concerning safety and efficacy are available for the two strategies. However, they should preferably be used as an ultima-ratio and add-on pathway to conservative procedures when established medication fails to achieve blood pressure control. To date, the effectiveness of the interventional antihypertensive therapies has only been shown on patients with systolic blood pressure over 160 mmHg and a mean oral medication of five drugs.