RT Book, Section
A1 Higgins, John P.
A1 Ali, Asif
A1 Filsoof, David M.
SR Print(0)
ID 1173757563
T1 Diagnostic Testing
T2 Cardiology Clinical Questions, 2e
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 9781259643330
LK accesscardiology.mhmedical.com/content.aspx?aid=1173757563
RD 2024/04/24
AB Table  Graphic  Jump  Location|Download  (.pdf)|PrintThe  decision  to  refer  a  patient  for  an  electrophysiological  study  is  based  upon  the  type  of  conduction  abnormality  present.HPI:  Episode  of  sudden  cardiac  arrest,  palpitations,  dyspnea,  syncope,  fatigue,  lightheadedness.PMH:  Cardiac  arrest,  atrioventricular  block,  atrial  fibrillation,  atrial  flutter,  ventricular  tachycardia.P  waves  absent,  biphasic  “sawtooth”  flutter  waves  present,  narrow  QRS  complex,  prolonged  PR  interval  of  fixed  duration  followed  by  a  P  wave  that  fails  to  conduct  to  the  ventricles,  dissociation  between  P  wave  and  QRS.EP  =  Refer  patient  for  ElectroPhysiological  study.RS  =  Patient  with  Recurrent  Syncope  that  remains  unexplained  after  an  appropriate  evaluation.SND  =  Patient  with  Sinus  Node  Dysfunction.S-AVB  =  Symptomatic  (palpitations,  dyspnea,  syncope,  lightheadedness)  patients  in  whom  AtrioVentricular  Block  is  suspected.IVCD  =  IntraVentricular  Conduction  Delay  in  symptomatic  (palpitations,  dyspnea,  syncope,  lightheadedness)  patients.NCT  =  Narrow  Complex  Tachycardia.WCT  =  Wide  Complex  Tachycardia.SRCA  =  SuRvivor  of  Cardiac  Arrest  without  obvious  reversible  cause.C-ABL  =  Patients  with  symptomatic  supraventricular  tachycardia  due  to  AVNRT,  symptomatic  atrial  tachyarrhythmias,  or  ventricular  tachycardia  amenable  to  Catheter  ABLation.RS  =  EPSND  =  EPS-AVB  =  EPIVCD  =  EPNCT  =  EPWCT  =  EPSRCA  =  EPC-ABL  =  EPElectrophysiological  studies  provide  valuable  diagnostic  information  as  they  can  determine  the  mechanisms  of  arrhythmia  and  help  in  the  decision  of  whether  drug,  device,  or  ablation  therapy  is  suitable.The  most  common  arrhythmia  found  by  EPS  studies  is  ventricular  tachycardia,  and  the  most  powerful  predictor  is  an  ejection  fraction  of  <40%.1.  Tracy  CM,  Akhtar  M,  DiMarco  JP,  et  al.  American  College  of  Cardiology/American  Heart  Association  Clinical  Competence  Statement  on  invasive  electrophysiology  studies,  catheter  ablation,  and  cardioversion:  a  report  of  the  American  College  of  Cardiology/American  Heart  Association/American  College  of  Physicians-American  Society  of  Internal  Medicine  Task  Force  on  Clinical  Competence.  Circulation.  2000;102:2309–2320.