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OBJECTIVES Transcatheter-based treatment of valvular heart disease has increasingly been implemented for the treatment of high-risk patients. The impact of these new treatment modalities on surgical valve programmes is unclear at present. We sought to evaluate the impact of an interventional mitral valve programme on surgical mitral valve activity and to assess the risk profiles of the respective patient populations.METHODS Between 2007 and 2011, 1112 patients underwent mitral valve surgery for isolated or combined procedures. An interventional mitral valve programme was initiated in 2008, with 270 patients treated from 2008 to 2011. Data were prospectively entered into a database and retrospectively analysed.RESULTS From 2007 to 2011, surgical mitral valve activity increased by 29.9% compared with a 9.8% increase nationwide (P = 0.09). Compared with the year before the introduction of a MitraClip programme, mean logistic EuroSCORE I of surgical patients was similar in 2011 (2007: 9.4 ± 10.4 vs 2011: 9.5 ± 10.5; P = 0.92), while overall 30-day mortality decreased from 7.2 to 4.4% (P = 0.22). The risk profile of surgical patients decreased significantly regarding several parameters. For isolated mitral valve repair, 30-day mortality was 1.5% (6 of 406) in all patients during the study period. Mean logistic EuroSCORE I of transcatheter patients was significantly higher when compared with that of surgical patients (28.8 ± 18.8 vs 9.5 ± 10.5%; P < 0.01).CONCLUSIONS Since the implementation of an interventional mitral valve programme, surgical mitral valve activity has increased over the following years. The risk profile of surgical patients decreased regarding several important parameters, although the overall logistic EuroSCORE I remained unchanged. An integrated approach to mitral valve disease with complementary surgical and non-surgical treatment options may possibly help in relieving the undertreatment of patients with severe mitral regurgitation.
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