Impact of Preoperative Left Ventricular Remodelling Patterns on Long-Term Outcome after Aortic Valve Replacement for Severe Aortic Stenosis

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Delpierre, Quentin | Marechaux, Sylvestre | Tribouilloy, Christophe | Bohbot, Yohann | Rusinaru, Dan

Edité par HAL CCSD ; Karger

International audience. Objectives: Four patterns of left ventricular (LV) geometry have been described in aortic stenosis (AS): normal geometry, concentric remodelling (LVCR), concentric hypertrophy (CH), and eccentric hypertrophy (EH). LVCR and CH are independently associated with an increased risk of mortality in patients with medically managed AS. No data are available on the impact of aortic valve replacement (AVR) on the negative prognostic implications of LV remodelling patterns. Methods: This study evaluated the long-term postoperative prognostic value of preoperative LV patterns in a cohort of 779 patients (mean age 73 years) with severe AS and ejection fraction >50% undergoing AVR. Results: Long-term postoperative all-cause and cardiovascular mortality in patients with LVCR (adjusted HR = 0.50 [0.17-1.45], p = 0.202, and 0.45 [0.10-2.15], p = 0.373, respectively), CH (adjusted HR = 0.98 [0.68-1.40], p = 0.915, and 1.25 [0.60-2.40], p = 0.556, respectively), or EH (adjusted HR = 1.02 [0.79-1.32], p = 0.870, and 1.18 [0.70-1.99], p = 0.537, respectively) were comparable to those of patients with normal LV geometry. Conclusions: Despite the negative prognostic impact of LVCR and CH observed in patients with medically managed AS, these LV remodelling patterns are not associated with excess mortality after AVR. Surgery should therefore be discussed in patients with LVCR or CH and severe AS to avoid the risk of increased mortality observed under conservative management. (C) 2018 S. Karger AG, Basel

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