Cardiac Sympathetic Denervation for Prevention of Ventricular Tachyarrhythmias
The purpose of this research study is to examine the effect of cardiac sympathetic denervation (CSD) surgery on life threatening abnormal heart rhythms called ventricular tachycardia or ventricular fibrillation that can lead to sudden cardiac death. Subjects will be asked to participate in this research study if they have recurrent ventricular tachycardia (at least one ICD shock for ventricular tachycardia) and have undergone at least one catheter ablation procedure or have ventricular tachycardia or fibrillation that is not ablatable. The goal of this study is to determine whether cardiac sympathetic denervation can prevent these abnormal heart rhythms from occurring and therefore, prevent, ICD shocks which are not only painful, but have been shown to reduce quality of life and/or lead to depression, particularly in the period immediately after the shock.
Conditions:
🦠 Sudden Cardiac Death 🦠 Ventricular Tachycardia 🦠 Ventricular Fibrillation 🦠 Cardiomyopathy
🗓️ Study Start (Actual) 26 July 2021
🗓️ Primary Completion (Estimated) 31 August 2024
✅ Study Completion (Estimated) 31 August 2024
👥 Enrollment (Estimated) 40
🔬 Study Type INTERVENTIONAL
📊 Phase PHASE3
Locations:
📍 Los Angeles, California, United States
📍 Portland, Oregon, United States
📍 Nashville, Tennessee, United States

📋 Eligibility Criteria

Description

  • INCLUSION CRITERIA
  • 1. Appropriate ICD shock for VT after at least one catheter ablation of VT procedure, OR appropriate ICD shock for VT and underwent electrophysiology study/ablation procedure where the procedure was not successful (i.e. determined that VT comes from an inaccessible location or VT was not inducible and could not be targeted or continued to have inducible VT at the end of the procedure) OR appropriate ICD shock for VT and not a candidate for VT ablation (i.e. patients with presence polymorphic VT or ventricular fibrillation, LV thrombus)).
  • 2. Presence of structural heart disease as defined as EF ≤ 50% or presence of ventricular scar as detected by imaging modalities or electroanatomic mapping, hypertrophic cardiomyopathy, cardiac sarcoidosis, or arrhythmogenic right ventricular cardiomyopathy.
  • 3. Patient is taking at least one anti-arrhythmic drug or has documented intolerance or toxicity to at least one anti-arrhythmic drug.
  • 4. 18 years of age or older at time of enrollment
  • 5. Able and willing to comply with all pre- and follow-up testing and requirements.
  • 6. Provision of signed informed consent and stated willingness to comply with all study procedures for duration of the study.
  • EXCLUSION CRITERIA
  • 1. Active ongoing cardiac ischemia as assessed by: ECG, cardiac enzymes, symptoms, coronary angiography with evidence of significant epicardial coronary stenosis (\>70%), or stress testing. (Note: positive troponin assay due to ICD shocks is not an exclusion criterion).
  • 2. Any medical or non-medical condition likely to prevent completion of trial.
  • 3. Contraindication to cardiac sympathetic denervation (i.e. unlikely to tolerate general anesthesia, single-lung ventilation, severe pulmonary disease, or severe pulmonary hypertension) or previous cardiac sympathetic denervation procedure.
  • 4. Left ventricular assist device or status post orthotopic heart transplantation
  • 5. Severe thrombocytopenia (platelets \< 50,000) or Coagulopathy (INR \> 2.0) that is not due to medications or a reversible cause.
  • 6. Women who are pregnant (as evidenced by pregnancy test if pre-menopausal).
  • 7. Unable or unwilling to comply with protocol requirements.
  • 8. NYHA class IV heart failure symptoms.
  • 9. Known channelopathy such as long QT syndrome and catecholaminergic polymorphic VT.
  • 10. Clinical VT rate \< 150 bpm
Ages Eligible for Study: 18 Years to N/A (ADULT, OLDER_ADULT)
Sexes Eligible for Study: ALL
Accepts Healthy Volunteers: No

🗓️ Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

  • First Submitted 13 November 2009
  • First Submitted that Met QC Criteria 13 November 2009
  • First Posted 16 November 2009

Study Record Updates

  • Last Update Submitted that Met QC Criteria 17 January 2024
  • Last Update Posted 19 January 2024
  • Last Verified January 2024