RT Book, Section
A1 Cohen, Jennifer
A1 Ezon, David
A1 Stern, Kenan
A1 Zaidi, Ali N.
A2 Fuster, Valentin
A2 Narula, Jagat
A2 Vaishnava, Prashant
A2 Leon, Martin B.
A2 Callans, David J.
A2 Rumsfeld, John S.
A2 Poppas, Athena
SR Print(0)
ID 1202452339
T1 Left Heart Obstructive Lesions
T2 Fuster and Hurst's The Heart, 15e
YR 2022
FD 2022
PB McGraw-Hill Education
PP New York, NY
SN 9781264257560
LK accesscardiology.mhmedical.com/content.aspx?aid=1202452339
RD 2024/04/18
AB Chapter  SummaryThis  chapter  describes  the  presentation,  diagnosis,  and  management  of  congenital  left  heart  obstructive  lesions,  a  series  of  anatomic  stenotic  lesions  from  the  left  atrium  extending  to  the  descending  thoracic  aorta  (see  Fuster  and  Hurst's  Central  Illustration).  Obstruction  may  be  in  the  left  atrium,  at  the  level  of  the  aortic  or  mitral  valve  (subvalvar,  valvar,  or  supravalvar),  in  the  ascending  aorta,  transverse  aortic  arch,  or  in  the  descending  thoracic  aorta.  These  left  heart  obstructive  lesions  may  present  either  in  isolation  or  in  association  with  other  left-sided  lesions.  Based  on  their  location,  these  lesions  may  cause  impairment  in  valvular  function  (either  aortic  or  mitral)  or  may  impose  increased  afterload  on  the  left  ventricle  and,  if  severe  and  untreated,  may  result  in  hypertrophy  and  dysfunction  of  the  left  ventricle.  Cardiac  imaging  is  essential  for  diagnosis,  management,  and  long-term  follow-up,  and  it  increasingly  plays  a  role  in  understanding  the  physiologic  changes  of  left-sided  obstructive  lesions  and  the  timing  for  intervention.  Treatment  is  based  on  the  underlying  left  heart  obstructive  lesion  and  may  involve  either  transcatheter  or  directed  surgical  repair.