Uncontrolled Hypertension
Conditions
Keywords
Uncontrolled hypertension, Renal denervation, Renal artery
Brief summary
This is a prospective, single centre clinical investigation looking at short (6 months) and long term (24 months) changes in cardiac function and renal function in patients with drug-resistant hypertension post renal sympathetic denervation.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Subject must be able and willing to comply with the required follow-up schedule * Therapeutic Goods Association approved indications for EnligHTN™ Renal Denervation System * Subject is ≥ 18 years of age at time of consent Subject has office SBP ≥ 160 mmHg (except for subjects with Diabetes Mellitus who must demonstrate an office SBP of ≥ 150 mm Hg) within 14 days of the procedure ◦Subject is taking ≥ 3 antihypertensive medications concurrently at maximum tolerated dose (this must include one diuretic) or subject has a documented intolerance to at least 2 out of the 4 major classes of anti-hypertensives (ACE/ARB, CCB, Diuretics, Beta Blockers and is unable to take 3 antihypertensive drugs.
Exclusion criteria
* Standard CMR exclusions; * implanted cardiac device * intracranial metallic implants * claustrophobia -Gadolinium-specific: estimated GFR \<60 mls/min (usual clinical cut-off is \<30 mls/min). * Adenosine-specific: * asthma / reactive airways disease * \>first degree atrioventricular block * concomitant use of dipyridamole or theophylline consumption of caffeine within 48 hours of proposed investigation * EnligHTN™ Renal Denervation System
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cardiac Function (evaluated by MRI) | Baseline and 6 Months | MRI Indices of Cardiac Function * Myocardial mass and myocardial fibrosis * Atrial and ventricular ejection function * Myocardial perfusion * Arterial distensibility |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Renal Function (evaluated by MRI) | Baseline, 6 Months and 24 Months | MRI Indices of Renal Function: * Renal blood flow * Renal perfusion * Urinary protein |
| Cardiac Function | Baseline and 24 Months | MRI Indices of Cardiac Function * Myocardial mass and myocardial fibrosis * Atrial and ventricular ejection function * Myocardial perfusion * Arterial distensibility |
Countries
Australia