Low recruitement rate

Primary objective is to assess the efficacy of the new ATP Autoswitch function in simple, dual or triple chamber ICD.

The efficacy rate of the ATP Auto-switch function, defined as the % of VT episodes successfully reduced, will be compared with 85%.

Inclusion Criteria:

• The patient has been implanted (primo implantation or replacement) with an ICD model PARADYM VR 8250, DR 8550, CRT 8750, CRT 8770 models or any similar or higher range device
• ATP Auto-switch function is programmed ON

Exclusion Criteria:

• Presence of a contra-indication to the ICD therapy
• Life expectancy less than 12 months

ICD/CRT-D implanted patients population