Attain Performa(TM) Quadripolar Lead Study

Inclusion Criteria:

- Patient is indicated for implant of a CRT-D device and left-heart lead per local
indications (In US only this is based on Class I and II indications for CRT-D implant
per HRS/ACC/AHA guidelines)

- Patient (or legally authorized representative) has signed and dated the
study-specific Consent Form

- Patient is 18 years of age or older, or is of legal age to give informed consent per
local and national law

- Patient is expected to remain available for follow-up visits

- Patient understands the study and agrees to comply with study protocol

Exclusion Criteria:

- Patient has a previous LV lead implanted or previous implant attempt within 30 days
of enrollment or has ongoing AEs from a previous unsuccessful implant attempt

- Patient has contraindications for standard transvenous cardiac pacing (e.g.,
mechanical right heart valve)

- Patient has had a heart transplant (Note: Patients waiting for heart transplants are
allowed in the study)

- Patient is contraindicated for < 1 mg dexamethasone acetate

- Patient is currently enrolled or planning to participate in a potentially confounding
drug or device study during the course of this study. (Note: Co-enrollment in
concurrent studies may be allowed provided that documented pre-approval is obtained
from Medtronic's study manager)

- Patient has a life expectancy less than 180 days

- Patient with exclusion criteria required by local law (e.g. age, pregnancy, breast
feeding, etc.)

- In US, women of childbearing potential must have a negative pregnancy test 7
days prior to implant to be included

- Patient is unable to tolerate an urgent thoracotomy