Pacemakers
What is the difference between Ingevity and Ingevity+?
Ingevity+
-tri-filar inner coil (Ingevity: uni-filar)
-improved terminal pin & distal coupler joints for fatigue resistance
-helix coupler extended for ext/ret., distal seals increased due to inner coil change to prevent self-extension
-IMPROVED HELIX EXTENSION & FEWER TURNS TO EXTEND
How many shocks can SICD deliver?
5
How many max shocks are available in each therapy zone?
VT-1: 5
VT: 6
VF: 8
What antiobiotics elute from EluPro?
rifampin & minocycline
What is the Wedensky effect?
Threshold is slightly lower when decrementing down than if you were to increment up from sub-threshold
What steroid is on our Ingevity+ leads?
0.91mg dexamethasone acetate
What is the SICD sensing floor?
80 microvolts
What are the QuickConvert parameters?
1 burst, 8 pulses, 88% burst cycle/coupling interval, min. interval 220ms
output: programmable
The Atlas trial showed that SICD has what % fewer lead complications compared to TV-ICD?
92%
Define these words:
rheobase & chronaxie
rheobase (voltage): min voltage to capture tissue at infinitely long pulse width
chronaxie: min pulse width to capture tissue at 2x rheobase voltage
What amp-hour batteries are in EL Boston pacers?
1.6 amp-hours
What is the cathode and anode in SICD REV polarity?
can: anode
coil: cathode
What are SICD post shock pacing parameters?
50bpm for 30 seconds, will inhibit if senses R waves
What is the upper limit of vulnerability?
Max shock energy that can induce VF from R-on-T induction (vulnerable period), above which VF cannot be induced.
What is BiV trigger?
BiV pace triggered 8-10ms after an RV sensed event
What is the definition of capture?
minimum voltage and pulse width to depolarize myocardial tissue
What frequency does SmartPass filter?
9Hz
Above what HV impedance is a shock delivered monophasic?
145 ohms
What is ATP timeout and what happens if applied in a zone without shocks?
Period of time during which ATP is delivered for before shock is initiated. If no shocks are programmed in zone that the rhythm was detected, no shocks will be delivered
What is SMART Blanking?
Shorter blanking (no noise portion), but less sensitive AGC decrement.
15ms: A blank after V sense
37.5ms: for all other parameters
What's the size difference between a Standard Longevity and EL pacer?
8mm height
How many Joules are delivered from a max energy SICD shock?
80 Joules
How many Joules are delivered from a TV-Boston ICD max energy shock?
<41 Joules
Stored energy is approx 14% higher than delivered
What is the diameter of the 3501 coil?
3mm
What's the inner and outer diameter of the AcuityPro outer sheath?
Outer: 9.2Fr
Inner: 7.8Fr