Artículos de revistas
Use of transesophageal echocardiography during implantation of aortic endoprosthesis (stent). Initial experience
Arquivos Brasileiros de Cardiologia. Sociedade Brasileira de Cardiologia - SBC, v. 77, n. 1, p. 05-08, 2001.
Fischer, Cláudio Henrique
Campos Filho, Orlando
Fonseca, José Honório de Almeida Palma da
Alves, Claudia Maria Rodrigues
Sousa, José Augusto Marcondes
Lira Filho, Edgar Bezerra de
Carvalho, Antonio Carlos
De Paola, Angelo Amato Vincenzo
OBJECTIVE: To report the role played by transesophageal echocardiography during implantation of self-expanding aortic endoprostheses (stent) at a hemodynamics laboratory. METHODS: Thirteen patients underwent stent implantation in the descending thoracic aorta with the aid of transesophageal echocardiography during the entire procedure. Indications for stenting were as follows: 8 aortic dissections, 2 true aneurysms, 2 penetrating atherosclerotic ulcers, and 1 traumatic pseudoaneurysm. RESULTS: No complications resulting from the use of transesophageal echocardiography were observed. In 12 patients, the initial result was considered appropriate, with total or partial resolution of the major lesion confirmed by a posterior examination. In 1 patient, the procedure was suspended after transesophageal echocardiography and angiography showed that the proximal aortic diameter was inappropriate. Transesophageal echocardiography contributed to clarifying relevant points, such as aortic diameter, anatomic detail of the intimal lesion, and location and size of the communicating orifice. In addition, it facilitated placing the stent in the target lesion, reduced the time of exposure to radiation and the use of contrast medium, and provided rapid identification of intercurrent events, possibly reducing the total duration of the procedure. CONCLUSION: The use of transesophageal echocardiography during placement of aortic stents seems appropriate. The actual advantages of the procedure will be defined in a comparative prospective study.