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7. Cardiac catheterization > Catheter types > Flashcards

Catheter types Flashcards

1
Q

Holes in injection KT: side vs end hole, uses

A
  • Deliver large amount of contrast in small period of time
    o Multiple side hole → rapid delivery + KT remain in stable position
    o Large diameter (6-7-8Fr)
  • End hole: not appropriate for ventricuography
    o Can cause KT recoil
    o If jet hits myocardium: arrhythmias, inadequate contrast dispersion, myocardial staining, perforation
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2
Q

NIH Angiographic

A

Rigid
Closed/blunt tip w 6 side holes in 1st cm

  • Angiography, primarily LV/Ao
  • Pressure measurement
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3
Q

Sones KT

A

End hole + 4 side holes
Tapers to small diameter tip

  • LV ventriculography via brachial approach
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4
Q

N Eppendorf KT

A

No end holes, multiple side holes

  • LV ventriculography
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5
Q

Lehman Ventriculography

A

Semi rigid
Flexible tapered closed tip w 4 side holes

  • Pressure measurement, primarily LV/Ao
  • Pullback pressure recording
  • LV angiography
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6
Q

Cournand Dacron KT

A

Flexible
End hole only
No balloon

  • Pressure measurement, primarily LV/Ao/PCWP
  • Blood sampling
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7
Q

Goodale-Lubin

A

Flexible, open tip w 2 side holes close to tip

  • Pressure measurement, primarily LV/Ao
  • Blood sampling
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8
Q

Nycor-Pigtail

A

Semi-rigid, tightly curved w end + multiple side holes

  • Angiography, primarily LV/Ao
  • Pressure measurement in LV
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9
Q

Advantages of pigtail KT

A
  • End hole: can advance J-tipped guidewire
  • Loop: avoid direct contact of end hole + myocardium
  • Multiple side holes around loop: numerous path for contrast material dispersion
  • Stabilize KT during injection + reduce recoil
  • Usually easy to get through AoV, follows direction of flow
  • Angled pigtails: 145-155 → pigtail = mimics angle btw Ao root and LV LAX
  • Judkins pigtails (original): straight → pig tail
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10
Q

Berman Angiographic

A

Flexible, closed tip w multiple side holes
4 to 8Fr, requires sheath
Inflatable balloon tip

  • Angiography, primarily LV/PA

2 ports
1. Side holes
2. Inflate balloon

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11
Q

Reverse Bearman vs classic

A
  • Reverse: balloon before holes
    • Classic: balloon at the end of KT
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12
Q

Balloon Wedge

A

Flexible, end hole only, inflatable balloon tip

  • Pressure measurement, primarily PCWP/RV/RA/PA
  • Blood sampling
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13
Q

Swan-Ganz

A

Flexible, inflatable balloon tip
End hole + thermistor at tip
Proximal side hole 15-30cm from tip

  • Pressure measurement, primarily PCWP/RV/RA/PA
  • Thermodilution CO measurements
  • Blood sampling
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14
Q

What are the 4 lumens of swan ganz KT

A
  1. Connected to distal port of KT → measurement of
    a. PA pressure when balloon is deflated
    b. PCWP when balloon inflated
  2. Attached to T sensing thermocouple 5cm prox to KT tip
    a. Measure CO by thermodilution
  3. Connect to port 15cm prox to tip
    a. Measure RAP
    b. Allows infusion of drugs in central circulation
  4. Inflate balloon
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15
Q

Balloon Tipped Thermodilution KT

A

End hole w 3 ports and side holes away from tip (RA)
Ballon tip
Thermistor connection site w 2 plugs

  • Pressure measurements
  • Thermodilution CO measurements
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16
Q

Multipurpose

A

Stiff end hole with small bend at the end

Similar application to Sones

17
Q

Cobra

A

End hole w larger secondary curve

Peripheral angiograms

18
Q

Bipolar-Electrode KT

A

Used for bundlegrams

19
Q

Teico KT

A

Micromanometer tip for high fidelity recording

  • Pressure measurement
  • Intracardiac phonocardiography
20
Q

Thin Electrode KT

A
  • Temporary pacing
21
Q

Coronary KT

A

Amplatz, Sones, Judkins R and L

  • Coronary angiography
22
Q

Differences between Berman and Swan Ganz

A
  • Bearman:
    o 2 ports
    o No end hole
  • Swan Ganz
    o 4 ports
    o End hole
    o Thermistor
  • Both have a balloon and side holes
23
Q

Define the preferred characteristics of an angiographic catheter.

A
  • Largest diameter
  • Shortest length
    o Maximise flow rate
  • Multiple side holes
    o Minimize endothelial trauma
    o Avoid recoil
    o End hole = poor choice for angiographic study

7. Cardiac catheterization (11 decks)

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