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2.
Ann Thorac Surg ; 74(4): S1334-9, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12400812

RESUMO

BACKGROUND: Percutaneous revascularization is a well-accepted method of treatment for a single left anterior descending coronary artery (LAD) stenosis. With the introduction of primary stenting, it has become the treatment of choice for a LAD lesion. In the last few years however, the introduction of minimally invasive cardiac surgery, video-assisted left internal thoracic artery (LITA) harvesting, and robotic surgery have raised the question as to whether minimally invasive surgical revascularization would be competitive with percutaneous coronary interventions in cases of single-vessel stenoses. METHODS: A group of 100 patients with Canadian Cardiovascular Society class II to IV, and angiographically confirmed single critical stenosis of the LAD (type A or B), were treated with direct primary stenting (group 1, n = 50), or with endoscopic atraumatic coronary artery bypass grafting (group 2, n =50). RESULTS: All patients in a group 1, obtained a very good angiographic and clinical effect. No acute postoperative complications were noted at 1 month of follow-up. However, at 1 month of follow-up, 3 patients (6%) developed restenosis of the LAD, and at 6 months follow-up, 6 patients (12%), developed restenosis of the LAD. In these cases, repeated percutaneous coronary interventions of the target vessel were successfully performed. In group 2, very good operative results were observed. In 1 and 6 months of follow-up, all patients remained asymptomatic. Critical stenosis of the left internal thoracic artery-LAD anastomosis was angiographically documented in 1 case (2%). This patient was successfully treated with balloon angioplasty. CONCLUSIONS: The study results document the superiority of endoscopic atraumatic coronary artery bypass grafting over direct primary stenting in LAD revascularization, along with the slightly higher costs of the surgical procedure.


Assuntos
Estenose Coronária/cirurgia , Stents , Toracoscopia , Angiografia Coronária , Reestenose Coronária , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias
3.
Eur J Cardiothorac Surg ; 22(2): 261-5, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12142196

RESUMO

OBJECTIVE: Minimally invasive direct coronary artery bypass (MIDCAB) through the anterolateral minithoracotomy has become a promising therapeutic option in patients with lesion in left anterior descending artery (LAD), especially in multimorbid, elderly and reoperated patients with type C or B lesions. To expand the benefits of MIDCAB concept to patients with multivessel disease, a hybrid myocardial revascularization procedure (HMR) combining surgery of the LAD with interventional procedures for additional coronary lesions has recently been introduced. METHODS: Between January 1999 and September 2001, 50 patients (37 male, 13 female, mean age 54.8+/-20.1 years) underwent an HMR procedure. MIDCAB with endoscopic left internal thoracic artery (LITA) harvesting, followed by percutaneous coronary intervention (PCI) for additional coronary lesions and percutaneous transluminal coronary angioplasty (PTCA), was performed in 11 patients (22%) and stenting in 39 patients (78%). Angiographic assessment of graft patency was performed in all patients during the PCI procedure. The clinical follow-up period was 3-32 months. RESULTS: There were no early and late deaths. Baseline Canadian Cardiology Society (CCS) class was 2.8+/-0.7 versus 1.1+/-0.9 (P<0.001) 30 days after HMR procedure. There were no major acute in-hospital cardiac events. Angiographic studies showed patent LIMA-LAD graft in 50 patients (100%). We showed good quality of anastomosis in 49 patients (98%). There was a moderate graft stenosis in one patient (2%). At long term follow-up, the rate of major cardiac events was 12%. Five patients (10%) developed restenosis after PCI, and one patient (2%) developed significant stenosis in site of LITA-LAD anastomosis; redo PCI was performed successfully. CONCLUSIONS: The hybrid procedure is a safe and effective method for complete revascularization in selected patients with double-vessel coronary artery disease (patients with type B or C lesions in the proximal LAD). This method allows performance of complete revascularization with minimization of surgical trauma. So far, long-term results of HMR are limited by the results of PCI.


Assuntos
Angioplastia Coronária com Balão , Ponte de Artéria Coronária/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Revascularização Miocárdica/métodos , Angiografia Coronária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Stents , Resultado do Tratamento
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