Effect of Catheter-based Radiofrequency Ablation Therapy in Patient With Therapy-resistant Hypertension and Sleep Apnea Syndrome
24. oktober 2017 opdateret af: University of Zurich
Effect of Catheter-based Radiofrequency Ablation Therapy of the Renal Sympathetic-Nerve System for Patient With Sleep Apnea Syndrome and Therapy Resistant Hypertension
The aim of this prospective single-center study is to evaluate sympathetic nervous system directly measured by microneurography, 24-hour blood pressure, endothelial function, vascular compliance, quality of life and platelet adhesion in patients with sleep apnea syndrome (defined by a complaint of excessive daytime sleepiness, an Epworth sleepiness score>8[10], and an apnea/hypopnea index (AHI>15/h) before and after catheter-based radiofrequency ablation of renal nerve.
If the selected patients are treated with CPAP, this therapy should be stable during the whole study time.
Primary and secondary end-point will be measured before and 1, 3, 6 and 12 months after renal sympathetic denervation.
Studieoversigt
Status
Trukket tilbage
Betingelser
Intervention / Behandling
Undersøgelsestype
Observationel
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
ZH
-
Zurich, ZH, Schweiz, 8091
- University Hospital Zurich, Division of Cardiology
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 80 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
patients with therapy-resistant arterial hypertension and sleep apnea syndrome
Beskrivelse
Inclusion criteria: We plan to include male or female subjects, age 18-80 with a diagnosis of medium-severe sleep apnea syndrome (defined by symptoms, a complaint of excessive daytime sleepiness, an Epworth sleepiness score >8, and an apnea / hypopnea index >15/h) and a resistant hypertension (systolic blood pressure >140 mmHg or >130 mmHg in patients with type II diabetes or chronic kidney disease, under treatment with three antihypertensive drugs including a diuretic).
If the selected patients are treated with CPAP, this therapy should be stable during the whole study time.
Every patient will be asked for a written informed consent.
Exclusion criteria: - Heart failure (normal ejection fractions on echocardiography and no clinical signs and symptoms of heart failure).
- Long acting nitrates, or PDE-5-Hemmer
- Alcohol or drug abuse,
- Malignancy (unless healed or remission > 5 years)
- Disease with systemic inflammation (e.g. rheumatoid arthritis, M. Crohn)
- Pulmonary Hypertension (PAP>50 mmHg)
- Pregnancy
- Anatomical contraindication to renal denervation
- Know allergy to contrast
- Participation in another study within the last month
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in sympathetic nervous system activity (burst/min and burst/100 HB) before and after catheter-based radiofrequency ablation
Tidsramme: 6 and 12 months
|
The primary objective of this study is to evaluate sympathetic nervous system activity in patients with sleep apnea syndrome before and 6 and 12 months after catheter-based radiofrequency ablation therapy of the renal sympathetic-nerve system
|
6 and 12 months
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
Tidsramme: 1, 3, 6 12 months
|
Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
|
1, 3, 6 12 months
|
|
Change in renal function (creatinin plasma level and GFR CKD-EPI Formula) before and after catheter-based renal denervation
Tidsramme: 1, 3, 6, 12
|
Change in creatinin plasma level and GFR CKD-EPI Formula before and after catheter-based renal denervation
|
1, 3, 6, 12
|
|
Change in sleep quality, pulse-oximetry, AHI, quality of life and subjective sleepiness with the Epworth sleepiness score before after catheter-based renal denervation
Tidsramme: 1, 3, 6 and 12 months
|
1, 3, 6 and 12 months
|
|
|
Change in 24-hour Holter and heart rate variability, echocardiogramm before and after catheter-based renal denervation
Tidsramme: 6 and 12 months
|
6 and 12 months
|
|
|
Change in vascular function and oxidative stress and inflammation parameters before and after catheter-based renal denervation
Tidsramme: 1, 3, 6, and 12 months
|
Change in vascular function (endothelial function as flow mediated dilatation, arterial stiffness by pulse wave velocity) and oxidative stress and inflammation parameters before and after catheter-based renal denervation
|
1, 3, 6, and 12 months
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Thomas Luescher, Professor, MD, University Hospital Zurich, Division of Cardiology
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. maj 2013
Primær færdiggørelse (Forventet)
1. april 2017
Studieafslutning (Forventet)
1. juli 2017
Datoer for studieregistrering
Først indsendt
26. april 2013
Først indsendt, der opfyldte QC-kriterier
17. juni 2013
Først opslået (Skøn)
18. juni 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
25. oktober 2017
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
24. oktober 2017
Sidst verificeret
1. oktober 2017
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- EK2012_0393
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .