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The impact of age on the postoperative response of the diastolic function and left ventricular mass regression after surgical or transcatheter aortic valve replacement for severe aortic stenosis

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Abstract

Purpose

We examined the impact of advanced age on left ventricular mass regression and the change in the diastolic function after aortic valve replacement in patients with aortic stenosis.

Methods

The present study included 129 patients who underwent either surgical or transcatheter aortic valve replacement and 1-year postoperative echocardiography. The patient characteristics and echocardiographic findings were compared between patients who were <80 years of age (group Y: n = 69) and those who were ≥80 years of age (group O: n = 60).

Results

Preoperative echocardiography revealed that although the left ventricular mass was similar between the groups, the patients in group O had more severe diastolic dysfunction in comparison to those in group Y. Postoperatively, left ventricular mass regression was significantly greater (p = 0.02) and diastolic dysfunction was less prevalent in group Y (p = 0.02) in comparison to group O. The change in E/e′ was significantly correlated with the left ventricular mass regression in group Y (p = 0.02), but not in Group O (p = 0.21).

Conclusions

The patients in group O were less susceptible to improvements in myocardial remodeling and the diastolic function in comparison to those in group Y. The altered physiological response to aortic valve replacement might help to determine the appropriate timing of surgery in elderly patients.

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Author information

Correspondence to Yoshiki Sawa.

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Conflict of interest

The authors declare no conflicts of interest in association with the present study.

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Nakamura, T., Toda, K., Kuratani, T. et al. The impact of age on the postoperative response of the diastolic function and left ventricular mass regression after surgical or transcatheter aortic valve replacement for severe aortic stenosis. Surg Today 47, 770–776 (2017). https://doi.org/10.1007/s00595-016-1458-6

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Keywords

  • Aortic valve stenosis
  • Aortic valve replacement
  • Myocardium
  • Hypertrophy, left ventricular