Sudden Cardiac Arrest, Ventricular Fibrillation, Ventricular Tachycardia
Conditions
Keywords
implantable-cardioverter-defibrillator, ventricular tachycardia, ventricular fibrillation, sudden cardiac arrest
Brief summary
The primary hypothesis is that an ICD shock may be predicted days in advance by a combined score derived from different data obtainable from the ICD
Interventions
DEVICEICD
Sponsors
Princess Margaret Hospital, Hong Kong
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
1. Age ≧ 18 and ≦ 80 2. Patients have documented spontaneous and sustained ventricular arrhythmias in the last six months prior to the enrollment 3. Patients who are in sinus rhythm, have dual-chamber ICD or CRT-D implanted at least one month before enrollment 4. Patients who are in atrial fibrillation, have single-chamber ICD or CRT-D implanted at least one month before enrollment 5. Patients who are compliant to CareLink follow-up
Exclusion criteria
1. Patients who are pregnant 2. Patients who are incapable of giving consent to the study 3. Patients who have a life-expectancy of less than 2 years
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| ICD-derived T-wave alternans amplitude before ICD shock | 6 months | The T-wave alternans amplitude before an ICD shock will be measured in mV and compared to the baseline T-wave alternans amplitude |
Countries
China
Contacts
Primary ContactNgai Yin Chan, MBBS
Outcome results
None listed