Related Experiment Videos
[Left auricular hypertrophy in aortic stenosis in adults]
J Boschat1, H Le Mehaute, J Le Potier
1Services de Cardiologie, CHU Morvan, Brest.
Insights
Left atrial hypertrophy (LAH) is a common finding in patients with calcified aortostenosis (CAS), particularly those experiencing dyspnea. This condition correlates with increased pulmonary capillary pressure and other hemodynamic factors.
Area of Science:
- Cardiology
- Cardiac Physiology
Context:
- Calcified aortostenosis (CAS) is a significant valvular heart disease.
- Left atrial hypertrophy (LAH) is a potential complication or indicator of cardiac stress.
Purpose:
- To investigate the prevalence and clinical significance of LAH in patients with CAS.
- To explore the relationship between LAH and various clinical, echocardiographic, and hemodynamic parameters in CAS patients.
Summary:
- Electrocardiograms revealed LAH in 81% of 98 adult patients with CAS.
- LAH showed a significant linear correlation with mean pulmonary capillary pressure, left ventricular mass, and left ventricle-aorta gradient.
- Dyspnea was more frequently observed in patients with LAH (84%) compared to those without (17%).
Impact:
- LAH is a frequent indicator in CAS patients, suggesting multifactorial origins.
- Increased mean pulmonary capillary pressure is a predominant factor in LAH development, especially with clinical signs of compromised safety.
- Findings highlight the clinical utility of ECG in identifying LAH and its association with hemodynamic changes in CAS.
Abstract:
Left atrial hypertrophy (LAH) was noted from the electrocardiograms of 72 of 98 adult patients (81%) who underwent hemodynamic evaluation of calcified aortostenosis (CAS). The relations between LAH and clinical, echographic and hemodynamic findings are specified. The frequency of LAH was not higher in cases of a history of hypertension, angina pectoris, lipothymia or exercise-induced syncope. In contrast, dyspnea was more frequently associated with LAH (84%) than not (17%). An approximately linear relation was seen between LAH and the mean pulmonary capillary pressure, the mean rate of circumferential decrease (RCF), the coefficient of muscle rigidity (ks of Mirsky), the left ventricular mass (LVM) and the left ventricle-aorta gradient. LAH is, therefore, a frequent sign in patients presenting CAS. Its origin is multifactorial, with a predominance of increased mean capillary pressure in cases of clinical signs of poor safety.