Aortic Valve Disease

Differentiating aortic stenosis (AS) and aortic regurgitation (AR) in older adults requires careful evaluation of clinical features. While both conditions affect the aortic valve, they present distinct symptoms and physical exam findings. In AS, classic symptoms include angina, syncope, and dyspnea, often presenting as exertional dyspnea. Physical exam findings may include a harsh systolic murmur radiating to the carotids, a diminished or delayed carotid pulse, and a narrow pulse pressure. In contrast, AR often presents with symptoms of left heart failure, such as orthopnea and paroxysmal nocturnal dyspnea. Physical exam findings in AR might include a diastolic murmur at the left sternal border, a widened pulse pressure, and peripheral signs of vasodilation like bounding pulses. However, in older adults, these classic presentations can be masked by comorbidities or age-related physiological changes. Echocardiography plays a crucial role in confirming the diagnosis and differentiating between AS and AR by visualizing valve morphology and quantifying the severity of the dysfunction. Explore how integrating echocardiographic parameters with clinical findings can enhance diagnostic accuracy in these patients.

Managing asymptomatic severe aortic stenosis (AS) involves a delicate balance of watchful waiting and timely intervention. While the patient may not exhibit overt symptoms, the underlying pathology continues to progress, increasing the risk of sudden cardiac death. Current guidelines recommend regular monitoring with echocardiography and exercise testing to assess disease progression and symptom development. Consider implementing a shared decision-making approach with your patient, discussing the risks and benefits of aortic valve replacement (AVR). Intervention is generally recommended when symptoms develop, even if mild, or when left ventricular systolic dysfunction or other high-risk features emerge, such as a markedly reduced ejection fraction, significant LV hypertrophy, or an abnormal exercise test result. For truly asymptomatic patients with severe AS, the decision for AVR is complex and should be individualized based on factors like age, comorbidities, and surgical risk. Learn more about the latest guidelines for managing asymptomatic severe AS to optimize patient outcomes.

A bicuspid aortic valve (BAV), present in approximately 1-2% of the population, can lead to aortic regurgitation (AR) in young adults. Evaluating AR secondary to BAV requires a thorough assessment, including echocardiography to quantify regurgitant severity and assess left ventricular size and function. Genetic counseling may be appropriate given the familial predisposition to BAV. Management strategies for asymptomatic patients with mild to moderate AR typically involve regular monitoring, with annual or biannual echocardiography, to track disease progression. Lifestyle modifications, such as regular exercise and blood pressure control, are encouraged. Intervention, usually in the form of aortic valve repair or replacement, becomes necessary when significant AR or left ventricular dysfunction develops, or if the patient experiences symptoms. Consider implementing a personalized surveillance strategy for young adults with BAV-associated AR to ensure timely intervention and prevent long-term cardiac complications.