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Published on: August 30, 2022
Hpertrophic subaortic stenosis is not rare in the eighth decade
Insights
Idiopathic hypertrophic subaortic stenosis is often missed in older adults. Early diagnosis using echocardiography is crucial for proper management, even in patients over 70.
Area of Science:
- Cardiology
- Internal Medicine
- Geriatrics
Background:
- Idiopathic hypertrophic subaortic stenosis (IHSS) is a significant cause of symptomatic heart disease.
- Diagnosis of IHSS is often delayed or missed, particularly in elderly patients.
- Previous studies have focused less on IHSS in older populations.
Purpose of the Study:
- To investigate the prevalence and diagnostic challenges of idiopathic hypertrophic subaortic stenosis in elderly patients.
- To compare the clinical presentation and diagnostic accuracy of IHSS between younger and older patient groups.
- To emphasize the importance of considering IHSS in elderly individuals with unexplained heart murmurs.
Main Methods:
- Retrospective analysis of patients diagnosed with IHSS over a five-year period.
- Comparison of diagnostic accuracy, clinical features, and cardiac catheterization/echocardiographic findings between younger (<67 years) and older (70-79 years) patient groups.
- Review of referral diagnoses, symptoms, physical findings, and electrocardiographic observations.
Main Results:
- IHSS was diagnosed in 9 older patients (70-79 years) and 26 younger patients (20-66 years).
- Only 1 older patient (11%) received the correct initial diagnosis, compared to 19 younger patients (73%).
- Coronary artery disease was more frequent in older patients (60% vs. 23%). Echocardiography confirmed IHSS in 5 older patients and cardiac catheterization in the remaining 4.
Conclusions:
- Idiopathic hypertrophic subaortic stenosis is not rare in the eighth decade of life.
- A high index of suspicion and definitive diagnostic studies like echocardiography are essential for accurate IHSS diagnosis in the elderly.
- Accurate diagnosis is fundamental for appropriate management of IHSS, regardless of patient age.
Abstract:
During a five year period, idiopathic hypertrophic subaortic stenosis was diagnosed in nine patients 70 to 79 years of age and in 26 patients 20 to 66 years of age who were referred to the cardiology division of the Long Island Jewish-Hillside Medical Center because of symptomatic heart disease. Only one of the older patients, compared with 19 of the younger ones, was referred with the correct diagnosis. Coronary artery disease with papillary muscle dysfunction was incorrectly diagnosed in four of the older patients. Cardiac catheterization confirmed the diagnosis of idiopathic hypertrophic subaortic stenosis in all of the 26 younger patients and in five of the nine older ones; diagnosis was based on typical echocardiographic features in the other four patients. Symptoms, physical findings, and electrocardiographic observations were similar in both groups. Aortic valve calcification was found in one younger patient and three older ones. The ratio of women to men was higher in the older group (7:2) than in the younger group (12:14). Coronary artery disease was more frequent in the older patients (three of five, compared with six of 26). Our experience indicates that idiopathic hypertrophic subaortic stenosis is not rare during the eighth decade. The diagnosis should be considered in any patient with an unexplained appropriate heart murmur, and definitive studies, such as echocardiography, should be done. As with any condition, proper management depends on accurate diagnosis.
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