Direct Current Ablation correct answers energy from an external defibrillator
-shock b/t distal catheter electrode and cutaneous surface electrode
-hard to control
-helped w/ afib and SVT by bestroying bundle of HIS
Mark Josephson correct answers father of EP
ID and interpretation of EGMs
-...
Biophysics of Ablation || A+ Verified Solutions.
Direct Current Ablation correct answers energy from an external defibrillator
-shock b/t distal catheter electrode and cutaneous surface electrode
-hard to control
-helped w/ afib and SVT by bestroying bundle of HIS
Mark Josephson correct answers father of EP
ID and interpretation of EGMs
-one of first to reeenty
Melvin Scheinman correct answers RF ablations
Michel Haissagurre correct answers first to descreibe the use of catheter ablation for afib
Wattage correct answers power for RF
RF gen -> ablation catheter electrode -> endocardial tissue -> grounding pad -> back to generator
correct answers energy loop in RF ablation
RF Frequencies correct answers 450-500hz
lesion correct answers tissue injury formed by ablation. no conduction is possible
Transmural lesion correct answers lesion goes all the way from endocardial to epicardial surface
Edema correct answers initial response to thermal injury
-creates space bt electrode and tissue
Lesion size correct answers determined by
-quality of electrode tip, tissue contact
-duration of application
-tissue temperature
-catheter electrode size
-impedance
-current
entrance block correct answers stimulation from CS does not enter the lasso in the PV
exit block correct answers stimulation from the PV does not exit and is not sensed in any other
catheter
restrictive correct answers type of heating tht occurs at point of contact. effect is localized and
rapid
-about 1mm
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