Valvoplastia tricúspide por cateter baläo: relato de quatro casos / Tricuspid percutaneous catheter-balloon valvuloplasty report of four cases

RESUMO

Estenose tricúspide foi tratada pela aplicaçäo de valvoplastia percutánea com cateter baläo em quatro pacientes. O gradiente médio de pressäo através da valva tricúspide, obtido pela Dopplerecocardiografia, que aumentava com a inspiraçäo, foi o critério mais significativo para o diagnóstico e quantificaçäo da estenose tricúspide. Houve considerável melhora clínica e hemodinámica com reduçäo de gradiente após a valvoplastia com cateter baläo, realizada sem complicaçöes

ABSTRACT

Tricuspid stenosis was treated in four patients by percutaneous balloon valvotomy. A mean pressure gradient equal or higher than 3 mmHg across the tricuspid valve using Doppler echocardiography and the increase of this pressure gradient during inspiration were the most significant criteria for diagnosis and quantification of tricuspid stenosis. There was a considerable hemodynamic improvement with reduction of the tricuspid valve gradient and relief of symptoms after balloon tricuspid valvotomy.