Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biotronik CRT > CRT Features > Flashcards

CRT Features Flashcards

1
Q

Are ERI or Longevities different between Litronik / Greenbach

A

ERI voltage differs. LITRONIK = 2.85 // GB = 2.5

Longevity is the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Biotronik is the only company to offer LV sensing. List 3 benefits and 1 thing it doesn’t do

A

LV channel = Markers / LV T-wave protect / Event Stat

LV sensing is not used for VF or Timing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Whats the max sensitivity on the LV

A

0.8mv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is more likely to induce phrenic - Voltage or Pulse Width

A

Voltage - Lower Voltage and increase PW to compensate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the Maximum RV sensed Trigger Rate?

A

Upper Track rate + 20 // 160bpm // lowest VT zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the minimum RV sensed trigger rate?

A

90bpm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How does LV T-wave protection work?

A

Resets the max trigger rate off the PVC - thus delays trigger pacing till after the T-wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why would you turn off ATM and ACC prior to implant?

A

Phrenic when testing post implant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How often does capture control measure?

A

1x 24hrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Can capture control work at any pulse width?

A

No - only 0.4ms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is Atrial Upper Rate?

A

NCAP - stops competitive pacing in the A, which lowers AF risk, which lowers HF risk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How does Atrial Upper Rate work?

A

When a PAC occurs in the PVARP a normal 300ms timer starts and doesn’t allow an A-pace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Essential PVC count is tantamount for effective HF monitoring - why?

A

Increase in PVCs shows:

Decompensating HF
Impending Shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How does Vector opt work

A

RV Pace to LV1 / LV2 / LV3 / LV4

This is a surrogate for QLV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Relative service time is in the EDORA only - True/False

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

AV opt has 4 stages - list them

A

1 - Determine P start on near field
2- Determine P end on Farfield (RA ring - RV ring)
3 - Measure
4 - + 50ms

17
Q

Is AV opt dynamic?

A

No - must be done in house on a programmer

18
Q

What percent of CRT patients are non responders?

A

30-40%

19
Q

Ischemic patients do well from multisite pacing - True/false

A

TRUE

20
Q

During multipole can you pace LV1 - RV - LV2?

A

NO - The LV 1 and 2 must follow each other

21
Q

How many pacing configurations are there with multipole?

A

12

22
Q

Amplitude and PW are independently programmable for each channel for Multipole - TRUE/FALSE

A

True - Biotronik exclusive

23
Q

What does Rivacor have over Ilivia with regards to multipole pacing autocapture

A

Rivacor can auto capture both LV1 and LV2

24
Q

Can you MPP with LV only pacing?

A

No - Must be BiV

25
Q

Which is better - Max anatomical separation or electrical delay?

A

Anatomic separation

26
Q

What can CRT auto adapt do?

A

Uses true RV and LV sensing to automatically adjust AV delay and set Vpacing to BiV or LV only

27
Q

In non responders - what percentage is found to be AV delay inaccuracies?

A

30-40%

28
Q

For CRT auto adapt to work, what 3 conditions must be met

A

Sinus Rhythm
Atrial rate <100bpm
A-RV conduction after pace <250ms

29
Q

CRT auto adapt uses Auto AV conduction test as first step - how often does it do it?

A

Every minute - if fails it doubles the time like VP suppression - up to 17hrs

30
Q

CRT auto adapt uses Auto AV conduction test as first step - what reduction in CRT does this take

A

1.4% per day

31
Q

Auto AV looks at AV conduction times to RV and then LV. List the 3 possible outcomes and what they mean

A

A-RV < A-LV = LBBB
A-RV = A-LV = No BBB
A-RV > A-LV = RBBB

32
Q

A-RV < A-LV = LBBB. What will be programmed?

A

Pacing = LV only

AV delay = Adapted AV (Either 70% of A-RV // A-RV - 40ms (whichever is shortest))

33
Q

A-RV = A-LV = No BBB. What is programmed?

A

Pacing = BiV

AV delay = Adapted AV (Either 70% of A-RV // A-RV - 40ms (whichever is shortest))

34
Q

A-RV > A-LV = RBBB. What is programmed?

A

Pacing = BiV

AV delay = Programmed values

35
Q

CRT auto adapt must use same sensing and pacing cathodes. TRUE/FALSE

A

TRUE

36
Q

LV only pacing in CRT auto adapt can only work if what is on?

A

LV capture control

Otherwise it will just perform AV adjustments as opposed to choosing BiV and LV only

37
Q

What can’t CRT Autoadapt be programmed with

A

CLS and VDD (Dx)

38
Q

Which CRT generations could take a DX lead

A

Ilivia onwards

39
Q

In Dx if V>A what happens to SMART

A

Switched off - Goes back to onset / stability

Biotronik CRT (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions