Author + information
- Waddy Gonzalez,
- Jeremy Miles,
- Mario Garcia and
- Daniel Spevack
Background: Apical hypertrophic cardiomyopathy (ApHCM) is considered to be a relatively rare variant of hypertrophic cardiomyopathy (HCM) in non-Asian populations, with most studies suggesting a prevalence of 1 to 3 percent. We noted a high prevalence of ApHCM encountered on echocardiography in our clinical laboratory located in Bronx, NY, and aimed to quantify the prevalence of this entity in relation to other forms of cardiac hypertrophy.
Methods: We reviewed 96,036 TTE acquired from 75,868 individuals between 1/1/10 and 12/31/13 and identified 1,786 subjects reported to have hypertrophy classified as more than mild. Based on ECG, history of hypertension, presence of SAM and pattern of hypertrophy on TTE (ASH, apical or concentric), subjects were classified as having HCM (201), Hypertensive heart disease (1,516) or Infiltrative heart disease (68). Self-reported race and ethnicity were determined from the medical records.
Results: Of 75,868 individuals referred for TTE, subjects were 62 ± 18 yrs old, 51% female, 39% Hispanic, 34% African American, 19% White and 8% Asian/Other race. Of 201 patients that made criteria for HCM, 93 (46%) were best classified as having ApHCM. Within the ApHCM group, 92% had ECG changes consistent with this entity.
Conclusions: Amongst non-White subjects with HCM, ApHCM was relatively common, constituting approximately half of the cases in African American and Hispanic subject. ApHCM was only found to be a rare entity in Whites.
Poster Hall, Hall C
Saturday, March 18, 2017, 9:45 a.m.-10:30 a.m.
Session Title: Innovative Use of Echocardiography
Abstract Category: 28. Non Invasive Imaging: Echo
Presentation Number: 1197-212
- 2017 American College of Cardiology Foundation