Up to 30% of patients with aortic stenosis (AS) present with heart failure (HF) symptoms with either reduced or preserved left ventricular ejection fraction. Many of these patients present with a low-flow state, reduced aortic-valve-area (≤1.0 cm) with low aortic-mean-gradient and aortic-peak-velocity (<40 mm Hg and <4.0 m/s). Thus, determination of true severity is essential for correct management, and multi-imaging evaluation must be performed. Medical treatment of HF is imperative and should be optimized concurrently with the determination of AS-severity. Finally, AS should be treated according to guidelines, keeping in mind that HF and low-flow increase interventions risks.
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http://dx.doi.org/10.1016/j.hfc.2023.02.005 | DOI Listing |
JACC Case Rep
January 2025
Division of Cardiology, Department of Medicine, Mount Sinai Fuster Heart Hospital, New York, New York, USA.
JACC Case Rep
January 2025
Department of Cardiovascular Disease, Mayo Clinic, Rochester, Minnesota, USA.
Left ventricular outflow tract (LVOT) obstruction is mostly caused by hypertrophic obstructive cardiomyopathy and subaortic stenosis. Rarely, malignancy can lead to dynamic LVOT obstruction and has only been sporadically documented. We present the first case of dynamic and/or nearly fixed LVOT obstruction caused by a cardiac myxoid spindle cell sarcoma.
View Article and Find Full Text PDFJACC Case Rep
January 2025
Interventional Cardiology Section, Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.
Aneurysms of the interventricular membranous septum are a rare anatomical feature that can be detected incidentally on computed tomography or echocardiography. Such aneurysms can pose challenges in the treatment of patients with aortic valve stenosis. A case series of 2 patients with membranous septal aneurysms treated successfully with current-generation balloon-expandable and self-expanding transcatheter heart valves is presented here.
View Article and Find Full Text PDFJACC Case Rep
December 2024
Department of Cardiology, Hospital Nacional Edgardo Rebagliati Martins, Lima, Peru.
A 77-year-old man with multiple comorbidities presented with cough, dyspnea and nonspecific malaise. Chest computed tomography revealed a mass in the right lower lobe of the lung, along with an associated hypodense lesion in the left atrium. Echocardiography showed a mobile mass in the left atrium, initially suspected to be a thrombus.
View Article and Find Full Text PDFActa Physiol (Oxf)
February 2025
PhyMedExp, IPAM/Biocampus, University of Montpellier, INSERM, CNRS., Montpellier, France.
Aim: Left atrial (LA) strain is emerging as a valuable metric for evaluating cardiac function, particularly under pathological conditions such as pressure overload. This preclinical study investigates the predictive utility of LA strain on cardiac function in a murine model subjected to pressure overload, mimicking pathologies such as hypertension and aortic stenosis.
Methods: High-resolution ultrasound was performed in a cohort of mice (n = 16) to evaluate left atrial and left ventricular function at baseline and 2 and 4 weeks after transverse aortic constriction (TAC).
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