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find Author "ZHAO Zhenhua" 1 results
  • Repeated sternotomy after mitral valve repair: no longer a risk factor

    Objective To explore the safety and complications of repeated sternotomy after mitral valve repair and prevention strategies. Methods We retrospectively analyzed the clinical data of 88 consecutive patients of non-rheumatic mitral valve disease who underwent repeated sternotomy for failure of first-time mitral valve repair in our hospital from January 2009 through June 2015. There were 53 males and 35 females with a mean age of 36.1±17.5 years in the patients who underwent repeated sternotomy. Meanwhile 88 patients who underwent the first-time sternotomy for mitral valve repair simultaneously were randomly recruited as a control group, and there were 57 males and 31 females with a mean age of 39.9±12.6 years. The clinical outcomes were analyzed retrospectively and compared between the two groups. Results No major injury was observed in the patients who underwent repeated sternotomy. Eight patients (9.1%) in the repeated sternotomy group required femoral artery cannulation. Cardiopulmonary bypass (CPB) time was longer in the femoral artery cannulation group than that in the aortic cannulation group (155.5±59.0 minvs. 119.5±39.9 min,P=0.023). While there was no statistical difference in aortic cross-clamp time (P=0.786). Eight patients (9.1%) in the repeated sternotomy group used extra-pericardium approach. There was no significant difference in CPB time (P=0.255) or aortic cross-clamp time (P=0.360) between the patients who used extra-pericardium approach and those used routine approach. There was no statistical difference in post-operative complications between the patients who used different sternotomy strategies. Although CPB time (123.0±3.0 minvs. 95.4±37.1 min,P=0.000) or aortic cross-clamp time (79.0±36.3 minvs. 67.5±29.1 min,P=0.026) was longer in the repeated sternotmy group, the major outcomes were similar between the repeated sternotmy group and the first-time sternotmy group (P>0.05). Conclusion Repeated sternotomy after mitral valve repair is relatively safe. With appropriate strategies, repeated sternotomy is not associated with increased risk of operative morbidity.

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