Please assess the completion status of the following clinical trial:

Trial Title: Cardiac Resynchronization Under Electroanatomical Guidance After Failure of Primary Implantation

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Patient with indication for implantation of a classic multisite pacemaker;~* New York Heart Association II/IV patient despite optimal medical treatment;~* Patient with left ventricular ejection fraction ≤35%;~* Patient with a widened QRS \> 120ms;~* Patient with at least one lateral coronary sinus vein visualized on angiography during the 1st procedure (if performed);~* Patient with failure of resynchronization via the endovenous route due to difficulty in accessing the coronary sinus or instability in the coronary sinus;~* Patient having been informed and having signed an informed consent form;~* Patient able to understand the information related to the study (absence of linguistic, psychological, cognitive problem, etc.), and to complete questionnaires.~Exclusion Criteria:~* Patient with resynchronization failure due to occlusion of the superior vena cava;~* Patient with no usable lateral coronary sinus vein;~* Patient with a life expectancy \< 3 months;~* Patient wearing a vena cava filter;~* Patient with active sepsis;~* Pregnant or likely to be pregnant (of childbearing age, without effective contraception) or breastfeeding;~* Patient participating in another clinical trial, or in a period of exclusion from another clinical trial;~* Patient not benefiting from a social security scheme.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- 3-dimensional guidance technique (Type: EXPERIMENTAL): 3-dimensional (3D) guidance technique to position the heart probes in the setting up of a pace maker

Based on this trial design, predict the completion outcome and termination type (if applicable).