- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02089672
RF Lesion Monitoring With 8mm IntellaTip MiFi XP
Radiofrequency Ablation Lesion Monitoring Using Imbedded Micro-Electrodes Versus Standard Bipolar Electrograms
Abnormal heart rhythms or arrhythmias are often managed by a procedure in which a catheter is introduced into the heart. These catheters can then cauterize abnormally functioning portions of the heart muscle with the hope of returning the heart to a more effective rhythm. In the process of performing such a procedure, called a catheter ablation, an operator must be able to accurately sense electrical activity displayed on computer screens in different parts of the heart, provide sufficient localized energy to the abnormally behaving tissue (ideally without damaging uninvolved heart structures), and accurately reassess the electrical activity of the heart to ensure the spot in the heart has been cauterized.
When sensing electrical activity of the heart, specialized catheters produce recordings on a computer screen known as electrograms (EGM). To produce this recording conventional catheters commonly use a positive and negative electrode, from which the difference between the two provides the EGM. The distance between the two electrodes varies from device to device. The greater the distance between them, the less accurate the measurement of local electrical activity becomes. This may result in poorly localized or excessive use of energy that could be damaging to normal heart structures or put the patient at risk for the return or development of additional arrhythmias. The IntellaTip MiFi catheter has been constructed with a specialized sensing tip that uses "microelectrodes" that are relatively close in proximity (<1 mm apart) with the hope of improving the sensing capability of the device.
This study will analyze the signals obtained from this FDA-approved catheter in people undergoing a catheter ablation procedure. The study will examine signals after the procedure is finished and will not prolong or differ the process from a standard ablation procedure. The goal of this study is to determine the ability of the microelectrodes to distinguish ablated, or cauterized versus non-cauterized tissue.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Studieorter
-
-
Georgia
-
Atlanta, Georgia, Förenta staterna, 30322
- Emory University Hospital
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Any adult undergoing an atrial flutter ablation
Exclusion Criteria:
-
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
Intervention / Behandling |
---|---|
Atrial flutter patients
Atrial flutter patients undergoing catheter ablation
|
This is observational trial studying the effects of a standard intervention of a catheter ablation procedure.
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
---|---|
Total bipolar electrogram amplitude using tip to ring and pin to pin configurations
Tidsram: Acute, averaged one hour during ablation. Measured postoperatively.
|
Acute, averaged one hour during ablation. Measured postoperatively.
|
Sekundära resultatmått
Resultatmått |
Tidsram |
---|---|
Total number of seconds per isthmus ablation spent in excess of the post-hoc identified complete lesion time.
Tidsram: Acute, averaged one hour during ablation. Measured postoperatively
|
Acute, averaged one hour during ablation. Measured postoperatively
|
Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Huvudutredare: Michael Lloyd, MD FHRS FACC, Emory University
Publikationer och användbara länkar
Allmänna publikationer
- Hogh Petersen H, Chen X, Pietersen A, Svendsen JH, Haunso S. Lesion dimensions during temperature-controlled radiofrequency catheter ablation of left ventricular porcine myocardium: impact of ablation site, electrode size, and convective cooling. Circulation. 1999 Jan 19;99(2):319-25. doi: 10.1161/01.cir.99.2.319.
- Sanchez JE, Kay GN, Benser ME, Hall JA, Walcott GP, Smith WM, Ideker RE. Identification of transmural necrosis along a linear catheter ablation lesion during atrial fibrillation and sinus rhythm. J Interv Card Electrophysiol. 2003 Feb;8(1):9-17. doi: 10.1023/a:1022315308803.
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- IRB00069674
- ISRCRM90003 (Annan identifierare: Other)
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .
Kliniska prövningar på Catheter ablation
-
National Institute of Allergy and Infectious Diseases...Circassia LimitedAvslutadKattallergi | KattöverkänslighetKanada
-
Aier School of Ophthalmology, Central South UniversityOkänd
-
Circassia LimitedCetero Research, San Antonio; Adiga Life Sciences, Inc.Avslutad
-
Rutgers UniversityOkändDepression | ÅngeststörningarFörenta staterna
-
Circassia LimitedAdiga Life Sciences, Inc.Avslutad
-
Circassia LimitedAdiga Life Sciences, Inc.Avslutad
-
Circassia LimitedAvslutad
-
MedImmune LLCAvslutadKronisk lymfatisk leukemi | Non-Hodgkin lymfomFörenta staterna, Polen
-
Massachusetts General HospitalAvslutadHandkirurgiFörenta staterna