HFS-guided Renal Ablation for Improving Outcome of Renal Denervation Procedure
High Frequency Guided Renal Artery Denervation for Improving Outcome of Renal Ablation Procedure
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Anticipé)
Phase
- Phase 2
Contacts et emplacements
Lieux d'étude
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Krasnoyarsk, Fédération Russe
- Federal Center of Cardiovascular surgery
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Krasnoyarsk, Fédération Russe
- Regional Hospital
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Moscow, Fédération Russe
- Federal Center of Prophylactic Medicine
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Office-based systolic blood pressure of ≥140/90 mm Hg and <160/100 mm Hg (moderate resistant hypertension) or ≥160/100 mm Hg (severe resistant hypertension), despite treatment with 3 antihypertensive drugs (including a diuretic).
- A glomerular filtration rate ≥45 mL/min/1⋅73 m2, with modification of diet using a renal disease formula.
Exclusion Criteria:
- Secondary causes of hypertension
- Severe renal artery stenosis or dual renal arteries
- Congestive heart failure
- Left ventricular ejection fraction <35%
- Previous renal artery stenting or angioplasty
- Type 1 diabetes mellitus
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Group 1 (RDN guided by HFS)
Renal arteries were assessed for suitability of ablation by renal angiography. The real-time 3-dimensional aorta-renal artery maps were reconstructed with the use of navigation system and ablation catheter via femoral artery access. After that high-frequency stimulation (HFS) was used before the initial and after each radiofrequency (RF) delivery within the renal artery. RDN was considered to have been achieved when the sudden increase of blood pressure (> 15 mm Hg from invasive arterial monitoring) was eliminated in response to HFS. RF ablations of 8-12 watts (impedance drop >10%) were applied discretely from the first distal main renal artery bifurcation all the way back to the ostium. The duration of each RF delivery was 60-120 sec, and up to 6 lesions (separated by > 5 mm) were performed both longitudinally and rotationally within each renal artery. |
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Comparateur actif: Group 2 (RDN as standard procedure)
Renal arteries were assessed for suitability of ablation by renal angiography. The real-time 3-dimensional aorta-renal artery maps were reconstructed with the use of navigation system and ablation catheter via femoral artery access. RF ablations of 8-12 watts (impedance drop >10%) were applied discretely from the first distal main renal artery bifurcation all the way back to the ostium. The duration of each RF delivery was 60-120 sec, and up to 6 lesions (separated by > 5 mm) were performed both longitudinally and rotationally within each renal artery. High-frequency stimulation (HFS) was performed before and after RDN to just to verify the response of BP |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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number of responders to renal denervation procedure
Délai: 12 month
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12 month
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
|---|---|
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complications rate
Délai: 12 month
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12 month
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cross-over rate
Délai: 12 month
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12 month
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Collaborateurs et enquêteurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 7452RDNHFS
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