Reconstrução geométrica do ventrículo esquerdo: avaliação intraoperatória por ecocardiograma transesofágico

The surgical treatment of LVA by geometric reconstruction has been increasing the results and the use of TEE is an important method to evaluate the results. From July 91 to January 92,22 consecutive patients (pts) with LVA were operated on, 20 were male and the ages ranged from 35 to 72 y (57.1 y). All pts were operated on with extracorporeal circulation (ECC), moderate hypothermia and intermitent aortic crossclamping. The surgical technique consisted by plicatures of septal and antero-apical wall to reconstruct the LV cavity and 19 pts received bypass grafts. No deaths were observed and in 4 pts was used IABP with good evolution. The TE evaluation was performed before and after the ECC in hemodinamic estability. Some parameters were evaluated as: inferior wall thickning (WT) that was 30% pre ECC and 61 % post ECC (p<0.05). The ejection fraction varied from 25% pre ECC to 52% post ECC (p<0.05). The diastolic diameter came from 65 mm pre ECC to 53 mm post ECC (p<0.05). In conclusion, the geometric reconstruction of LVA showed good results, confirmed by hemodynamic and ECHO parameters in intraoperative period.