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Apical hypertrophic cardiomyopathy with preexcitation presenting as a myocardial infarction and ischemic stroke with a history of recurrent syncope: A case report.

ABSTRACT: Contrast-enhanced echocardiography or cardiac magnetic resonance imaging is of value in the diagnosis of apical hypertrophic cardiomyopathy. Apical hypertrophic cardiomyopathy is rare in Caucasians, and gene negativity does not rule out the diagnosis. Risk stratification for sudden cardiac death and decisions about anticoagulation in cases with atrial fibrillation should be based on guidelines.

SUBMITTER: Al-Saadi J

PROVIDER: S-EPMC6452448 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Apical hypertrophic cardiomyopathy with preexcitation presenting as a myocardial infarction and ischemic stroke with a history of recurrent syncope: A case report.

Al-Saadi Jonathan J Mattsson Gustav G Kader Rozh R Magnusson Peter P

Clinical case reports 20190314 4

Contrast-enhanced echocardiography or cardiac magnetic resonance imaging is of value in the diagnosis of apical hypertrophic cardiomyopathy. Apical hypertrophic cardiomyopathy is rare in Caucasians, and gene negativity does not rule out the diagnosis. Risk stratification for sudden cardiac death and decisions about anticoagulation in cases with atrial fibrillation should be based on guidelines. ...[more]

PMID: 30997092

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Project description:BackgroundApical hypertrophic cardiomyopathy (ApHCM) is recognized for its associated cardiovascular morbidity. Herein we describe left ventricular (LV) function and mechanics over long-term follow-up in ApHCM.MethodsA retrospective study of 98 consecutive ApHCM patients was performed (mean age: 64±15 years, 46% female) using 2D and speckle-tracking echocardiography. LV function and mechanics were characterized by global longitudinal strain (GLS), segmental strain, and myocardial work indices. Myocardial work was calculated by integrating longitudinal strain and blood pressure as estimated by the brachial artery cuff pressure, to generate an LV pressure-strain loop with adjusted ejection and isovolumetric periods. Composite complications were defined as all-cause mortality, sudden death, myocardial infarction, and/or stroke.ResultsMean LV ejection fraction measured 67%±11% and GLS was -11.7%±3.9%. Global work index (GWI) was 1,073±349 mmHg%, constructive work was 1,379±449 mmHg%, wasted work was 233±164 mmHg%, and work efficiency was 82%±8%. In 72 patients with follow-up echocardiography, at a median of 3.9 years there was progressive impairment in GLS (-11.9% vs. -10.7%; P=0.006), GWI (1,105 vs. 989 mmHg%; P=0.02), and global constructive work (1,432 vs. 1,312 mmHg%; P=0.03), without change in wasted work or work efficiency. Atrial fibrillation (β=0.37; P<0.001), mitral annular e' velocity (β=-0.32; P=0.001), and glomerular filtration rate (β=-0.2; P=0.03) were independently associated with follow-up GLS; atrial fibrillation (β=-0.27; P=0.01) and glomerular filtration rate (β=0.23; P=0.04) were also associated with follow-up GWI. Global wasted work >186 mmHg% was predictive of composite complications (AUC =0.7, 95% CI: 0.53-0.82, sensitivity 93%, specificity 41%).ConclusionsApHCM is associated with preserved LV ejection fraction but abnormal LV GLS and work indices, with progressive impairment. Important clinical and echocardiographic measures are independently predictive of long-term follow-up LV GLS, GWI and adverse events.

Dataset Information

Apical hypertrophic cardiomyopathy with preexcitation presenting as a myocardial infarction and ischemic stroke with a history of recurrent syncope: A case report.

Publications

Apical hypertrophic cardiomyopathy with preexcitation presenting as a myocardial infarction and ischemic stroke with a history of recurrent syncope: A case report.

Similar Datasets

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