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Work > RA and RV Lead Info > Flashcards

RA and RV Lead Info Flashcards

1
Q

What are the 2 main insulation materials in leads?

A

silicone and polyurethane

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2
Q

What are the 4 techniques for obtaining access?

A
  • needle stick or puncture
  • cephalic cut down and puncture
  • thoracoscopy
  • thoracotomy
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3
Q

What are the common veins for obtaining access?

A
  • subclavian vein

- axillary vein

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4
Q

What are the disadvantages of the needle stick method of obtaining access?

A
  • pneumothorax
  • hemothorax
  • SVC perforation
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5
Q

Which insulation material is fragile, requiring multiple layers?

A

silicone

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6
Q

Which insulation material has a higher coefficient of friction, meaning less slippery than the other?

A

silicone

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7
Q

Which insulation material is sturdy and requires less layers/thinner application? (is thinner than the other)

A

polyurethane

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8
Q

Which insulation material has a lower coefficient of friction, meaning more slippery than the other?

A

polyurethane

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9
Q

What does ESC and MIO stand for in relation to lead insulation?

A
  • Environmental Stress Cracking: usually affects outer, not inner conductor, no issues
  • Metal Ion Oxidation: macrophage cells produce peroxide molecules that degrade the polyurethane insulation
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10
Q

Which lead insulation type is more likely to produce an immune response?

A

polyurethane

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11
Q

Is the 4076 lead considered a hybrid lead and what does that mean?

A

yes, contains inner silicone and outer polyurethane insulation

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12
Q

What do the individual numbers in the low-power lead model number represent (ex: 4076, 5076)?

A
  • 1st number = insulation material
  • 2nd number = shape
  • 3rd number = Medtronic brand for the lead
  • 4th number = polarity
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13
Q

For low-power leads: What does the number 4 in the 1st position in the lead model number represent (ex: 4076)?

A
  • the 1st number indicates the type of insulation

- the number 4 = polyurethane

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14
Q

For low-power leads: What does the number 0 in the 2nd position in the lead model number represent (ex: 4076)?

A
  • the 2nd number indicates the lead shape

- the number 0 = lead is straight in shape

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15
Q

For low-power leads: What does an even number in the 4th position of the lead model number represent?

A

the 4th number indicates the type of polarity

- an even number = bipolar

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16
Q

For low-power leads: What does an odd number in the 4th position of the lead model number represent?

A
  • the 4th number indicates the type of polarity

- an odd number = unipolar

17
Q

For low-power leads: What does the number 5 in the 1st position in the lead model number represent (ex: 5076)?

A
  • the 1st number indicates the type of insulation

- the number 5 = silicone

18
Q

For low-power leads: What does the number 1 in the 2nd position in the lead model number represent (ex: 4176)?

A
  • the 2nd number indicates the lead shape

- the number 1 = lead is canted/curved in shape

19
Q

For low-power leads: What does the number 5 in the 2nd position in the lead model number represent (ex: 4576)?

A
  • the 2nd number indicates the lead shape

- the number 5 = lead is J-shaped

20
Q

For low-power leads: What does the number 9 in the 2nd position in the lead model number represent (ex: 4976)?

A
  • the 2nd number indicates the lead shape

- the number 9 = lead is an epicardial lead

21
Q

For high-power leads: What do the numbers 69 in the 1st and 2nd position in the lead model number represent (ex: 6947)?

A

the number 69 labels the lead as a high power lead

22
Q

For high-power leads: What does the number 4 in the 3rd position in the lead model number represent (ex: 6947)?

A
  • the 3rd number identifies the number of electrodes on the lead
  • the number 4 = tip, ring, RVcoil and SVC coil
23
Q

For high-power leads: What does the number 3 in the 3rd position in the lead model number represent (ex: 6937)?

A
  • the 3rd number identifies the number of electrodes on the lead
  • the number 3 = tip, ring, and RVcoil
24
Q

What do the individual numbers in the high-power lead model number represent (ex: 6947)?

A
  • 1st and 2nd number = identifies lead as high-power
  • 3rd number = number of electrodes (3 or 4)
  • 4th number = type of fixation (active/passive)
25
Q

For high-power leads: What does an odd number in the 4th position of the lead model number represent?

A
  • the 4th number indicates the type of fixation

- an odd number = active

26
Q

For high-power leads: What does an even number in the 4th position of the lead model number represent?

A
  • the 4th number indicates the type of fixation

- an even number = passive

27
Q

Which CS lead would you recommend for medium sized vessels with moderate vessel curvature?

A

4298 ATTAIN PERFORMA-CANTED

28
Q

Which CS lead would you recommend that suitable for small sized vessels and smaller lesser vessel curvature?

A

4398 ATTAIN PERFORMA STRAIGHT

29
Q

How many vector choices are available with a quadripolar lead?

A

16 vectors

30
Q

When applying the pacing gator clips at implant which color is the cathode and which is the anode?

A
  • black = cathode

- red = anode

31
Q

What type of lead is a 6947M?

A

69 - High voltage
4 - dual coil (4 electrodes, tip, ring, RVcoil, SVCcoil)
7 - active fix
M - Multipolar DF4

32
Q

What type of lead is a 4196?

A 
LV lead
4 - polyurethane
1 - canted “skinny”
9 - attain brand
6 - bipolar dual cathode
33
Q

What does a 3 or 5 in the 4th place of an LV lead nominclature?

A

Unipolar

34
Q

What is a 4 in the 4th place of an LV lead nominclature?

A

True bipolar

35
Q

What is a 6 in the 4th place of an LV lead nominclature?

A

Bipolar (dual cathode)

36
Q

What is a 4798 lead?

A

Quadripolar Active fixation LV lead

37
Q

What is a 4398 lead?

A

Straight quadripolar passive LV lead

38
Q

What is a 4298 lead?

A

Hockey stick shaped quadripolar LV lead

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