Characterization of Interventricular Conduction Measurements

Characterization of Interventricular Conduction Measurements

This study is an effort to use left ventricular (LV) lead based measurements to identify late electrical activation and avoid scar.

The aim of this study is to characterize how right ventricular (RV) to left ventricular (LV) conduction delays are altered by pacing site in patients with a cardiac resynchronization therapy (CRT) system. The study will be performed in conjunction with a CRT implant.

Inclusion Criteria:

• Patient is greater than 18 years of age.
• The patient or the patient's legally authorized representative is willing to give informed consent.
• CRT indicated guidelines.
• Patient is receiving a Medtronic IPG or ICD.

Exclusion Criteria:

• Patients who are pregnant.
• Patient is in AF.
• Patient with 3rd degree AV block.