Mastering Pacing, Cardioversion and Defibrillation

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Mastering Pacing, Cardioversion and Defibrillation Mike McEvoy, PhD, NRP, RN, CCRN Sr. Staff RN – Cardiovascular Surgical ICU Albany Medical Center NTI class code: EXED223 Pacing, Cardioversion, Defib Indications Too many to list… (Patient Must Be Symptomatic and Documented with ECG) Too slow Too fast Too irregular Unstable VT Cardiovert or Defibrillate? Cardioversion is synchronized with… R on T Leads? Pads? Do you need to place the leads? Where’s the best place for the pads? Synchronized Cardioversion Now, too slow… Pacing pads can be applied any time! Better to have them in place before you need them – easier to move the patient Transcutaneous Pacing Pads Conduct through skin Transcutaneous Set Rate Set Output TCP – Transcutaneous Pacing Pads on patient –Leads usually needed Turn on Pacing –Starts @ 0 mA, 80/min Increase mA until capture observed Confirm mechanical capture (pulse, SpO2) Capture TCP: What Mode? VOO VVI What’s the problem/solution? Loss of capture – increase mA Stimulation Threshold The minimum output needed to consistently capture the heart 100 mA 75 mA 50 mA Something’s not right here… Intrinsic Beat Paced Beat Intrinsic Beat Paced Beat Fusion Beat Pseudofusion Beat Fusion Beat Pseudofusion Beat Pause Button Drops rate to 25% programed value Won’t STOP pacing (10 ppm minimum) Really bad - vfib Rule # 1: Show Up & Shock Goal for defibrillation: Hospital: 3 minutes Community: 5 minutes Albert Einstein “The definition of insanity is doing the same thing over and over again and expecting different results.” Rule #2: Think Birthday Cake Optimal defib field = 90% myocardium What would Einstein do? energy Change pad location NTI class code: EXED223 Mike McEvoy [email protected] [email protected] www.mikemcevoy.com @mcevoymike mcevoymike.

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