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What are the key roentgenologic and angiocardiographic findings for diagnosing idiopathic hypertrophic subaortic stenosis?
What are the key roentgenologic and angiocardiographic findings for diagnosing idiopathic hypertrophic subaortic stenosis?
Roentgenologic findings combined with angiocardiography provide the basis for diagnosing idiopathic hypertrophic subaortic stenosis in patients presenting with a systolic ejection murmur.
Classic roentgen findings may aid suspicion for idiopathic hypertrophic subaortic stenosis; leaves open validation against modern echocardiography in contemporary cohorts.
In patients with a systolic ejection murmur and without a history of rheumatic fever, a probable diagnosis of idiopathic hypertrophic subaortic stenosis (IHSS) can be made from the roentgenologic findings. Left ventricular enlargement, associated at times with minimal left atrial enlargement, without intracardiac calcification and with a normal ascending aorta are the most frequent roentgen findings. For a positive diagnosis, a pressure gradient within the left ventricle and hypertrophic muscular obstruction should be demonstrated by angiocardiography.
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Im et al. (1988) studied this question.
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