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Obstruction to left ventricular inflow secondary to combined mitral annular calcification and idiopathic hypertrophic
Catheterization and Cardiovascular Diagnosis
|January 1, 1980
Insights
Idiopathic hypertrophic subaortic stenosis (IHSS) can cause left ventricular inflow obstruction, often due to mitral annular calcification. This rare association requires careful hemodynamic assessment to avoid misdiagnosis.
Area of Science:
- Cardiology
- Cardiac Surgery
- Internal Medicine
Background:
- Idiopathic hypertrophic subaortic stenosis (IHSS) is a condition affecting the left ventricle.
- Mitral annular calcification (MAC) can lead to significant cardiac issues.
- The coexistence of IHSS and MAC causing inflow obstruction is infrequently reported.
Purpose of the Study:
- To report a rare case of an elderly woman with IHSS and left ventricular inflow obstruction.
- To highlight the potential role of massive mitral annular calcification in causing this obstruction.
- To emphasize the importance of hemodynamic measurements in diagnosing such rare conditions.
Main Methods:
- Case presentation of an elderly female patient.
- Clinical evaluation including hemodynamic measurements.
- Review of relevant medical literature.
Main Results:
- The patient presented with symptoms suggestive of left ventricular inflow obstruction.
- Massive mitral annular calcification was identified as the likely cause of the obstruction.
- The association with IHSS was confirmed through hemodynamic assessment.
Conclusions:
- Massive mitral annular calcification can cause left ventricular inflow obstruction in patients with IHSS.
- This rare condition may be overlooked without precise hemodynamic evaluation.
- Early and accurate diagnosis is crucial for appropriate patient management.
Abstract:
We present an elderly woman with idiopathic hypertrophic subaortic stenosis (IHSS) and obstruction to left ventricular inflow. The inflow obstruction is thought to be due to massive mitral annular calcification. The association of IHSS and inflow obstruction is rare and may be overlooked unless careful hemodynamic measurements are obtained.