The purpose of this study is to characterize the removability of the Attain StarFix® Model 4195 Left Ventricular (LV) Lead (StarFix®). The goal of the trial is to evaluate the lead removal success in patients that are indicated for left ventricular lead removal. This study is required by the Food and Drug Administration (FDA) as a condition of approval for the Attain StarFix® Model 4195 LV Lead.

Inclusion Criteria:

• Subjects with a Class I/II indication and/or physician discretion for left ventricular lead removal
• Medtronic Model 4195 LV lead implanted for at least 181 days at time of extraction, or other Medtronic LV Lead (non-Model 4195) implanted for at least 181 days at time of extraction, or Medtronic Model 4195 LV lead implanted for 90-180 days
• Intention to remove the LV lead prior to the extraction procedure
• Subject is 18 years of age or older
• Subject (or subject's legally authorized representative) has signed and dated the Patient Consent Form and is willing and able to comply with the protocol

Exclusion Criteria:

• None

Patients will be chosen by investigators participating in the study at up to 25 experienced extraction centers throughout the United States and Canada. Patients of both genders that are indicated for a Model 4195 or a non-Model 4195 Medtronic lead extraction who meet all inclusion criteria may be in the study.