Abstract 1764: Coapsys® Leads to Global Reversal of Left Ventricular Remodeling: Expanded TRACE Study Analysis
Background: . We have previously reported as a part of the TRACE study that patients with LV dysfunction undergoing CABG and surgical implantation of Coapsys had significant reductions in LV size and MR at 1 year. Echo data of patients who recieved CABG with and without Coapsys, were retrospectively analyzed to determine the extent and pattern of LV reverse remodeling related to the LV shape change properties of Coapsys.
Methods: Coapsys consists of anterior and posterior epicardial pads connected by a flexible chord, drawn together to affect change in valvular and ventricular geometry. Coapsys was implanted in patients whose MR remained ≥ grade 2 after CABG (Coapsys + CABG group, n=32). Patients whose MR grade reduced to 1 or less after CABG (CABG Alone group, n=35) received CABG only. Baseline age, ejection fraction, graft number, and MR grade in the Coapsys + CABG group and the CABG Alone group were 58, 35, 2.7, 3.0 and 59, 37 2.8, 2.7 respectively. Detailed echocardiographic measurements of diastolic left ventricular dimensions in 3 echo planes, 4 Chamber (4 Ch), 2 Chamber (2 Ch), and Long Axis (LAX), along with LV length and anterolateral papillary muscle (ALPM) depth were serially collected up to 12 months after surgery.
Results: Comparison of baseline, 3 month and 12 month dimensions between Coapsys + CABG and CABG Alone groups are displayed in Figure 1⇓.
Conclusions: In patients with MR and LV dysfunction undergoing implantation of Coapsys along with CABG, there is significant, global and progressive reversal of LV remodeling. This may to be related to the LV shape change properties of Coapsys and could benefit patients with heart failure.