| Journal: | Brazilian journal of cardiovascular surgery |
| Database: | PERIÓDICA |
| System number: | 000290627 |
| ISSN: | 1678-9741 |
| Authors: | Colatusso, Claudinei1 Gomes, Carlos Henrique Gori Costa, Francisco2 Fornazari, Daniele de Fatima Matsuda, Camila Naomi Torres, Rafael de Almeida Sardetto, Evandro Ferreira, Andreia Dumsch de Aragon Costa, Marise Brenner Affonso da |
| Institutions: | 1Pontificia Universidade Catolica do Parana, Curitiba, Parana. Brasil 2Pontificia Universidade Catolica do Parana, Departamento de Medicina, Curitiba, Parana. Brasil |
| Year: | 2006 |
| Season: | Abr-Jun |
| Volumen: | 21 |
| Number: | 2 |
| Pages: | 155-164 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Caso clínico, analítico |
| English abstract | OBJECTIVE: To evaluate the imediate and late results of 10 years of aortic valve root replacement with aortic homografts and to identify possible risk factors related with homograft primary tissue failure. METHODS: Between May 1995 and January 2006, 282 patients with a mean age of 52.8±16.6 years were submitted to aortic valve root replacement with an aortic homografts. The most prevalent etiologies were calcified bicuspid aortic valves and senile degeneration, corresponding to 49% of the cases. Forty-seven patients were reoperations and acute bacterial endocarditis were present in 26. Associated procedures were necessary in 113 patients. The homograft was implanted as a root replacement in all. Follow-up time varied between 1 and 129 months (mean= 41±25 months). RESULTS: Early overall mortality was 7%, with only 2.6% for cases of aortic valve replacement in isolation. Of the 262 patients discharged from hospital, it was possible to obtain clinical and echocardiographic evaluations in 209. Fifty-one patients (20%) were lost in the follow-up. There were 17 late deaths between the 2nd and 81st postoperative months, which resulted in an actuarial survival rate of 90% and 80.1% at 5 and 10 years respectively. There were eight thromboembolic events (four early and four late), for a linearized incidence of 0.3% events/100 patients/year. Bacterial endocarditis occurred in three occasions (0.4%/100 patients/year). Nine patients were re-operated, of which only three were related to the homograft (one case of primary tissue failure and two of bacterial endocarditis), corresponding to a probability of 94% of the patients free from this complication at 10 years of follow-up. Late echocardiographic analysis demonstrated maximum gradients varying between 3 and 47 mmHg (mean= 14.5 mmHg), with only two patients having a maximum gradient greater than 40 mmHg. Moderate valvar insufficiency was present in four cases. CONCLUSIONS: The early and late results |
| Portuguese abstract | OBJETIVO: Avaliar os resultados imediatos e tardios de 10 anos da substituição da valva aórtica por homoenxertos valvares aórticos implantados pela técnica de substituição total da raiz, e identificar eventuais fatores de risco correlacionados com a degeneração tecidual primária dos enxertos. MÉTODO: Entre maio/1995 e janeiro/2006, 282 pacientes com média de idade de 52,8±16,6 anos foram submetidos à substituição da valva aórtica com homoenxertos valvares. As etiologias prevalentes foram a valva aórtica bicúspide calcificada e a degeneração senil em 49% dos casos. Quarenta e sete pacientes eram reoperações e 26 tinham endocardite bacteriana aguda. Procedimentos associados foram realizados em 113 pacientes. O homoenxerto valvar foi implantado pela técnica de substituição total da raiz em todos os casos. O tempo de seguimento pós-operatório variou de 1 a 129 meses (média = 41±25 meses). RESULTADOS: A mortalidade imediata foi de 7%, sendo de apenas 2,6% nos casos de operação eletiva para a substituição isolada da valva aórtica. Dos 262 que receberam alta hospitalar, foi possível obter avaliação clínica e/ou ecocardiograma em 209 deles, sendo 51 (20%) perdidos durante o seguimento. Houve 17 óbitos tardios, entre o 2º e 81º meses de pós-operatório, o que resultou em curva atuarial de sobrevida global de 90% e 80,1% aos 5 e 10 anos de evolução, respectivamente. Foram observados apenas oito episódios tromboembólicos (quatro imediatos e quatro tardios), durante a evolução para uma incidência linearizada de 0,3%/100 pa |
| Disciplines: | Medicina |
| Keyword: | Cirugía, Sistema cardiovascular, Válvulas cardiacas, Válvula aórtica, Prótesis, Implantes, Trasplante homólogo, Evaluación |
| Keyword: | Medicine, Cardiovascular system, Surgery, Heart valves, Aortic valve, Prosthesis, Implants, Homologous transplant, Evaluation |
| Full text: | Texto completo (Ver HTML) |
