Aged; Aortic Valve/diagnostic imaging; Aortic Valve Stenosis/complications/diagnosis/mortality; Cause of Death/trends; Death, Sudden/epidemiology/etiology; Echocardiography; Europe/epidemiology; Female; Follow-Up Studies; Humans; Male; Outpatients; Retrospective Studies; Severity of Illness Index; Survival Rate/trends; Time Factors
Abstract :
[en] IMPORTANCE: Modern data regarding incidence and modes of death of patients with aortic stenosis (AS) are restricted to tertiary centers or studies of aortic valve replacement (AVR). OBJECTIVE: To provide new insights into the natural history of outpatients with native AS based on a large regionwide population study with inclusion by all cardiologists regardless of their mode of practice. DESIGN, SETTING, AND PARTICIPANTS: Between May 2016 and December 2017, consecutive outpatients with mild (peak aortic velocity, 2.5-2.9 m/s), moderate (peak aortic velocity, 3-3.9 m/s), and severe (peak aortic velocity, ≥4 m/s) native AS graded by echocardiography were included by 117 cardiologists from the Nord-Pas-de-Calais region in France. Analysis took place between August and November 2020. MAIN OUTCOMES AND MEASURES: Natural history, need for AVR, and survival of patients with AS were followed up. Indications for AVR were based on current guideline recommendations. RESULTS: Among 2703 patients (mean [SD] age, 76.0 [10.8] years; 1260 [46.6%] women), 233 (8.6%) were recruited in a university public hospital, 757 (28%) in nonuniversity public hospitals, and 1713 (63.4%) by cardiologists working in private practice. A total of 1154 patients (42.7%) had mild, 1122 (41.5%) had moderate, and 427 (15.8%) had severe AS. During a median (interquartile range) of 2.1 (1.4-2.7) years, 634 patients underwent AVR and 448 died prior to AVR. Most deaths were cardiovascular (200 [44.7%]), mainly associated with congestive heart failure (101 [22.6%]) or sudden death (60 [13.4%]). Deaths were noncardiovascular in 186 patients (41.5%) and from unknown causes in 62 patients (13.8%). Compared with patients with mild AS, there was increased cardiovascular mortality in those with moderate (hazard ratio, 1.47 [95% CI, 1.07-2.02]) and severe (hazard ratio, 3.66 [95% CI, 2.52-5.31]) AS. The differences remained significant when adjusted for baseline characteristics or in time-dependent analyses considering AS progression. In asymptomatic patients, moderate and mild AS were associated with similar cardiovascular mortality (hazard ratio, 0.99 [95% CI, 0.44-2.21]). CONCLUSIONS AND RELEVANCE: While patients in this study with moderate AS had a slightly higher risk of cardiovascular death than patients with mild AS, this risk was much lower than that observed in patients with severe AS. Moreover, in asymptomatic patients, moderate and mild AS were associated with similar cardiovascular mortality.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Coisne, Augustin; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Montaigne, David; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Aghezzaf, Samy; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Ridon, Hélène; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Mouton, Stéphanie; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Richardson, Marjorie; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
Polge, Anne-Sophie; University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011- EGID,
LANCELLOTTI, Patrizio ; Centre Hospitalier Universitaire de Liège - CHU > > Service de cardiologie ; Gruppo Villa Maria Care and Research, Maria Cecilia Hospital, Cotignola, Anthea
Bauters, Christophe; University Lille, Inserm, CHU Lille, Institut Pasteur, U1167, Lille, France.
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