Renal denervation represents an important area of research. St. Jude Medical is conducting five renal denervation studies including the EnligHTNment landmark trial. This study is the first large-scale trial that will examine the long-term effects of renal denervation to see if the therapy also reduces the risk of heart attack, stroke, heart failure requiring hospitalization, as well as cardiovascular death in patients with uncontrolled hypertension.
The next-generation EnligHTN system is currently being evaluated in the EnligHTN III study, an international, non-randomized clinical trial that will enroll up to 50 patients in Australia and New Zealand. This study expands on EnligHTN I trial research of the first generation EnligHTN system, which demonstrated that patients with drug-resistant hypertension had a safe, rapid and sustained drop in blood pressure. After thirty days, systolic blood pressure was reduced by an average of 28 mmHg (millimeters of mercury) that remained stable with a reduction of 27 mmHg points one year after treatment.
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About Hypertension
A normal blood pressure is typically at or below 120 systolic and 80 diastolic, expressed as 120/80 mmHg. Hypertension is categorized as a blood pressure reading greater than 140/90 mmHg. Lowering hypertension is important as the risk of cardiovascular death doubles with every 20 point increase in systolic blood pressure.
Hypertension or "high blood pressure" is a common medical condition that can cause life-threatening health problems such as heart disease, stroke or kidney failure that affects one in three adults worldwide according to the World Health Organization (WHO). Known as the "silent killer," high blood pressure often presents no warning signs or symptoms and many people do not realize they have it. Drug-resistant hypertension is a condition that cannot be controlled through medication. There are more than 100 million people worldwide that are treatment resistant where at least three high blood pressure drugs do not work. The annual global health care expenditure directly related to hypertension is estimated at almost 385 billion Euros every year.
Recently, the European Society of Cardiology (ESC) and the European Association of Percutaneous Cardiovascular Interventions (EAPCI) issued guidelines recommending the use of catheter-based renal denervation for the treatment of high blood pressure in patients with difficult-to-treat, drug-resistant hypertension.
