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.
journal_name
Surg Todayjournal_title
Surgery todayauthors
Nakamura T,Toda K,Kuratani T,Miyagawa S,Yoshikawa Y,Fukushima S,Saito S,Sawa Ydoi
10.1007/s00595-016-1458-6subject
Has Abstractpub_date
2017-06-01 00:00:00pages
770-776issue
6eissn
0941-1291issn
1436-2813pii
10.1007/s00595-016-1458-6journal_volume
47pub_type
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