Dobutamine stress echocardiography in low-flow, low-gradient aortic stenosis with concomitant severe functional mitral regurgitation: a case report.
Kenichi IshizuAkihiro IsotaniShinichi ShiraiKenji AndoPublished in: European heart journal. Case reports (2021)
The coexistence of significant AS may lead to overestimation of the severity of MR, and reportedly, concomitant MR improves in the majority of patients after TAVI, especially MR of functional aetiology. However, the coexistence of significant MR often leads to inconclusive DSE results because dobutamine stress may worsen MR and fail to increase the stroke volume. In our case, DSE after PMVR was useful to diagnose the true-severe AS for the patient with LFLG AS and severe functional MR.
Keyphrases
- aortic stenosis
- contrast enhanced
- ejection fraction
- magnetic resonance
- transcatheter aortic valve implantation
- transcatheter aortic valve replacement
- left ventricular
- aortic valve
- end stage renal disease
- early onset
- chronic kidney disease
- computed tomography
- atrial fibrillation
- heart failure
- brain injury
- cerebral ischemia
- patient reported