[Resistant arterial hypertension].
Many patients are considered to have resistant hypertension when their blood pressure remains elevated despite the use of multiple antihypertensive agents. Several factors can interfere with optimal control of blood pressure, some being patient-related, such as poor compliance, other being physician-related, such as the reluctance to increase treatment. These factors are often identified using a systematic approach, so that truly resistant hypertension is, in fact, uncommon.