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Dupla artéria torácica esqueletizada versus convencional na revascularização do miocárdio sem CEC em diabéticos / Double skeletonized internal thoracic artery vs. double conventional internal thoracic artery in diabetic patients submitted to OPCAB
Milani, Rodrigo; Brofman, Paulo Roberto; Guimarães, Maximiliano; Barboza, Laura; Tchaick, Rodrigo Mezzalira; Meister Filho, Hugo; Baggio, Thales; Maia, Francisco.
  • Milani, Rodrigo; PUC/PR. BR
  • Brofman, Paulo Roberto; PUC/PR. BR
  • Guimarães, Maximiliano; s.af
  • Barboza, Laura; s.af
  • Tchaick, Rodrigo Mezzalira; s.af
  • Meister Filho, Hugo; s.af
  • Baggio, Thales; s.af
  • Maia, Francisco; s.af
Rev. bras. cir. cardiovasc ; 23(3): 351-357, jul.-set. 2008. ilus
Article in English, Portuguese | LILACS | ID: lil-500520
RESUMO

OBJETIVO:

Avaliar a influência da técnica utilizada na dissecção das artérias torácicas na evolução de pacientes diabéticos submetidos a revascularização sem CEC.

MÉTODOS:

Setenta pacientes diabéticos submetidos a revascularização sem CEC com duas artérias torácicas foram avaliados. No grupo A, as artérias torácicas foram dissecadas de modo convencional, enquanto no grupo B foram esqueletizadas.

RESULTADOS:

A idade média do grupo A foi de 52,14±7,35 anos contra 55,71±8,1 anos no grupo B (p=0,057). No grupo A, seis (17,1%) pacientes eram diabéticos insulinodependentes contra nove (25,7%) no grupo B (p=0,561). O EUROSCORE foi de 3,97±2,49 para o grupo A contra 4,14±3,06 no grupo B (p=0,879). O número médio de anastomoses distais no grupo A foi de 3±0,77 contra 3,03±0,89 para o grupo B (p=0,981). Três (8,57%) dos pacientes do grupo A apresentaram mediastinite contra nenhum do grupo B (p=0,239). A diabetes insulino-dependente foi o único fator estatisticamente significativo (p=0,008) para mediastinite. Neste grupo, a utilização de artéria torácica interna esqueletizada diminuiu significativamente a incidência de mediastinite (p=0,044).

CONCLUSÃO:

A incidência de mediastinite foi menor no grupo onde ambas as artérias torácicas foram dissecadas de forma esqueletizada, apesar de, devido ao baixo número de casos, não apresentar diferença estatística. Nos portadores de diabetes insulino-dependente, 50 por cento dos pacientes do grupo em que a artéria torácica foi obtida de forma convencional apresentaram mediastinite, sendo que a utilização de artéria torácica esqueletizada diminuiu significativamente a incidência de mediastinite.
ABSTRACT

OBJECTIVE:

To evaluate the influence of the technique used in the dissection of thoracic arteries in the evolution of diabetic patients submitted to OPCAB.

METHODS:

Seventy diabetic patients submitted to OPCAB using bilateral thoracic arteries were evaluated. In Group A, thoracic arteries were dissected as a pedicle, while in Group B they were skeletonized.

RESULTS:

The mean age of patients in Group A was 52.14 ± 7.35 years old versus 55.71 ± 8.1 years for Group B (p=0.057). In Group A, six patients (17.1%) were insulin dependent against nine (25.7%) in Group B (p = 0.561). The EUROSCORE was 3.97 ± 2.49 for Group A opposed to 4.14 ± 3.06 for Group B (p = 0.879). The number of distal anastomoses in Group A was 3 ± 0.77 versus 3.03 ± 0.89 in Group B (p = 0.981). Three patients (8.57%) from Group A presented with mediastinitis. Insulin dependence was the only significant risk factor (p=0.008) for mediastinitis. In this group the use of skeletonized internal thoracic arteries significantly decreased the incidence of mediastinitis (p = 0.044).

Conclusion:

The incidence of mediastinitis was lower in the group for which mammary arteries were dissected using skeletonization. Among insulin-dependent diabetics, 50 percent of the patients from the group in which the pedicled internal thoracic artery was utilized presented with mediastinitis; the utilization of skeletonized internal thoracic arteries significantly decreases the incidence of mediastinitis.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Tissue and Organ Harvesting / Coronary Artery Bypass, Off-Pump / Diabetic Angiopathies / Internal Mammary-Coronary Artery Anastomosis / Mammary Arteries / Mediastinitis Type of study: Etiology study / Evaluation studies / Incidence study / Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Humans Country/Region as subject: South America / Brazil Language: English / Portuguese Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: PR+BR

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Full text: Available Index: LILACS (Americas) Main subject: Tissue and Organ Harvesting / Coronary Artery Bypass, Off-Pump / Diabetic Angiopathies / Internal Mammary-Coronary Artery Anastomosis / Mammary Arteries / Mediastinitis Type of study: Etiology study / Evaluation studies / Incidence study / Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Humans Country/Region as subject: South America / Brazil Language: English / Portuguese Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: PR+BR