Table 1.
Comparison of Echocardiographic and Hemodynamic Metrics Pre and Post TEER Procedure
| Variable | Case #1 (HLHS-Fontan) | Case #2 (HLHS-Fontan) | Case #3 (CAVC-Left AV Valve) | Case #4 (Unbalanced CAVC-Fontan) |
|---|---|---|---|---|
|
| ||||
| Vena Contracta Area (cm2) | ||||
| Pre-Procedure | 2.5 | 0.7 | 1.1 | 3.9 |
| Post Clip 1 | 1.6 | 0.2 | 0.5 | 3.1 |
| Post Clip 2 | 0.3 | N/A | N/A | 1.5 |
| Mean Inflow gradients (mmHg) | ||||
| Pre-Procedure | 3 | 1 | 7 | 2 |
| Post Clip 1 | 4 | 1 | 7 | 3 |
| Post Clip 2 | 3 | N/A | N/A | 3 |
| Atrial Pressures (mmHg) | ||||
| Pre-Procedure (mean, v-wave) | 15, 20 | 9, 13 | 24, 50 | 11, 22 |
| Post Clip 1 (mean, v-wave) | N/A | 7, 9 | 22, 28 | N/A |
| Post Clip 2 (mean, v-wave) | 13, 18 | N/A | N/A | 12, 22 |
| AVVR Qualitative Grading | ||||
| Pre-Procedure | Massive-Torrential | Severe-Massive | Severe | Torrential |
| Post Clip 1 | Severe | Mild | Moderate | Severe |
| Post Clip 2 | Mild-Moderate | N/A | N/A | Severe |
| Estimated Ventricular Ejection Fraction (%) | ||||
| Pre-Procedure | 49 | 32 | 42 | 39 |
| Post Clip 1 | 44 | 43 | 31 | 39 |
| Post Clip 2 | 38 | N/A | N/A | 40 |
| Last follow-up | 58 | 40 | 33 | 45 |
TEER= Transcatheter Edge-to-Edge-Repair; HLHS= Hypoplastic left heart syndrome; CAVC= Common Atrioventricular Canal; AV= Atrioventricular; AVVR=Atrioventricular Valve Regurgitation