Valvular & structural heart disease

Recurrence of syncope after valve replacement in severe aortic stenosis

HeartPublished Observational registry study

Authors' conclusion

Syncope on exertion in patients with SAS did not recur after aortic valve intervention. Syncope at rest recurs in a high proportion of patients and identifies a population with increased mortality.

Study context

Population
Patients with symptomatic severe AS without other valve disease and/or CAD who underwent valve intervention and were discharged alive53 with syncope
Participants
320 patients
Exposure
Syncope on exertion vs syncope at rest before valve intervention
  • Syncope on exertionn = 29
  • Syncope at restn = 21
Outcome
Recurrence of syncope after valve replacement and its impact on mortality (all-cause and CV mortality)
Follow-up
Median 69 months (IQR: 55-88)
Methodological detailsdouble-centre, consecutive patients
  • Double-centre
  • Consecutive patients

Main finding

As reported in the abstract

Recurrence of syncope after valve intervention
GroupValueRecurrence
Syncope on exertiondid not recur in any patient
Syncope at rest38%

Value

Syncope on exertion— not stated in the abstract
Syncope at rest38%

Recurrence

Syncope on exertiondid not recur in any patient
Syncope at rest— not stated in the abstract
Postintervention syncope at rest in patients with syncope at rest
P < 0.001

Observational data: associations, not effects.

Further findings

CV mortality associated with recurrence of syncope

HR (95% CI)P value
Recurrence of syncopeOnly recurrence of syncope was associated with CV mortality5.74 (2.17–15.17)P < 0.001

Original publication

Recurrence of syncope after valve replacement in severe aortic stenosis. Heart. Published 7 June 2023. doi:10.1136/heartjnl-2023-322859

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