RT Book, Section
A1 Niemann, James T.
A2 Tintinalli, Judith E.
A2 Stapczynski, J. Stephan
A2 Ma, O. John
A2 Yealy, Donald M.
A2 Meckler, Garth D.
A2 Cline, David M.
SR Print(0)
ID 1121504147
T1 Cardiomyopathies and Pericardial Disease
T2 Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 8e
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 9780071794763
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1121504147
RD 2024/04/23
AB The  term  cardiomyopathy  describes  a  heterogeneous  group  of  diseases  that  directly  alter  cardiac  structure,  impair  myocardial  function,  or  alter  myocardial  electrical  properties.  Discoveries  in  molecular  genetics  and  the  description  of  (ion)  channelopathies  as  diseases  have  prompted  new  definitions  and  classification  of  cardiomyopathies.1  Primary  cardiomyopathies  are  diseases  that  solely  or  predominantly  involve  the  myocardium1;  the  most  common  disorders  are  listed  in  Table  55-1.  Secondary  cardiomyopathies  include  heart  muscle  diseases  associated  with  specific  systemic  disorders.  At  present,  no  classification  method  perfectly  distinguishes  all  forms  of  cardiomyopathy,  and  overlap  exists  between  categories.2,3  Secondary  cardiomyopathies  often  present  with  hemodynamic  findings  similar  to  those  of  the  idiopathic  dilated  or  restrictive  forms  of  cardiomyopathy.  The  most  common  causes  of  secondary  cardiomyopathies  are  listed  in  Table  55-2.  As  a  group,  the  cardiomyopathies  are  the  third  most  common  form  of  cardiac  disease  encountered  in  the  United  States,  following  coronary  (ischemic)  heart  disease  and  hypertensive  heart  disease.  Hypertrophic  cardiomyopathy  is  the  second  most  common  cause  of  sudden  cardiac  death  in  the  adolescent  population  and  the  leading  cause  of  sudden  death  in  competitive  athletes.4