TY  - CHAP
M1  - Book, Section
TI  - Ventricular Arrhythmias
A1  - Zimmerman, Franklin H.
PY  - 2023
T2  - ECG Core Curriculum
AB  - A  premature  depolarization  that  originates  in  the  ventricular  myocardium  or  terminal  Purkinje  fibers  is  termed  a  ventricular  premature  complex  (VPC).  The  impulse  is  initiated  outside  of  the  specialized  conduction  system,  activating  the  nearby  myocardium  via  slow,  myocyte-to-myocyte  transmission.  The  impulse  then  engages  the  His-Purkinje  system  to  depolarize  the  remaining  myocardium.  We  know  that  this  type  of  transmission  produces  a  wide  QRS  complex  (≥0.12  seconds)  with  secondary  T  wave  abnormalities  that  are  directed  opposite  to  that  of  the  dominant  R  wave  (Figure  19-1).  
SN  - 
PB  - McGraw Hill Education
CY  - New York, NY
Y2  - 2024/04/20
UR  - accesscardiology.mhmedical.com/content.aspx?aid=1200101297
ER  -