Hypertrophic cardiomyopathy resident survival guide

Revision as of 16:04, 6 March 2015 by Steven Bellm (talk | contribs)
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Hypertrophic cardiomyopathy resident survival guide Microchapters
Overview
Classification
Causes
Diagnosis
Treatment
Do's
Dont's

Overview

Hypertrophic Cardiomyopathy is defined by LV hypertrophy associated with nondilated ventricular chambers without any other cardiac or systemic disease that itself would be capable of producing the magnitude of hypertrophy evident. HCM is usually recognized by maximal LV wall thickness ≥15 mm. Wall thickness of 13 to 14 mm is considered borderline if there are other compelling information (eg, family history of HCM), based on echocardiography. The diagnostic imaging mainly focused on echocardiography, however cardiovascular magnetic resonance (CMR) is used with increasing frequency.[1]

Classification

 
 
 
 
 
 
 
Left Ventricular Hypertrophy
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sarcomere Mutation
 
 
Without Extracardiac or Metabolic Findings + Genetic Substrate Unresolved
 
 
With Extracardiac or Metabolic Findings Associated With or Without Mutant Gene
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Hypertrophic Cardiomyopathy
 
 
 
 
Syndrome with Left Ventricular Hypertrophy
 
 

Causes

Life Threatening Causes

Common Causes

Complete Diagnostic Approach

 
 
 
 
 
 
 
A01
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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C01
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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D02
 
 
 
 
 
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Treatment


 
 
 
 
 
 
 
Patients with HCM
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Treat comorbidities according to Guidelines (Hypertension, Diabetes mellitus,etc)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Obstructive Physiology?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
B01
 
 
 
 
 
 
 
B02
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
C01
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
D01
 
D02
 
 
 
 
 
D03
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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E02
 
 
E03
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
F01
 
 
F02

Do's

Dont's

References

  1. American College of Cardiology Foundation/American Heart Association Task Force on Practice. American Association for Thoracic Surgery. American Society of Echocardiography. American Society of Nuclear Cardiology. Heart Failure Society of America. Heart Rhythm Society; et al. (2011). "2011 ACCF/AHA guideline for the diagnosis and treatment of hypertrophic cardiomyopathy: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines". J Thorac Cardiovasc Surg. 142 (6): e153–203. doi:10.1016/j.jtcvs.2011.10.020. PMID 22093723.