Intra-aortic balloon counterpulsation (IABP) provides temporary circulatory support through systolic unloading and diastolic augmentation. It increases coronary perfusion and decreases myocardial oxygen demand, and is used in patients with cardiogenic shock. Indications include cardiogenic shock, high-risk PCI, and post-cardiotomy shock. Contraindications are severe aortic insufficiency or aneurysm. The IABP catheter is inserted via the femoral artery and connected to a console for inflation and deflation. Waveform analysis ensures proper timing and augmentation.
The Norwood procedure is the first of three surgeries required to treat single-ventricle conditions such as hypoplastic left heart syndrome (HLHS). Because the left side of the heart can’t be fixed, the series of surgeries rebuilds other parts of the heart.
The Norwood procedure is performed in the baby’s first or second week of life.to redirect the blood flow.
Three goals for the Norwood procedure:
1, Build a new aorta.
2, Direct blood from the right ventricle through the new aorta and on to the rest of the body.
3, Direct the right ventricle to pump blood to the lungs until the next surgery.
The Norwood procedure is the first of three surgeries required to treat single-ventricle conditions such as hypoplastic left heart syndrome (HLHS). Because the left side of the heart can’t be fixed, the series of surgeries rebuilds other parts of the heart.
The Norwood procedure is performed in the baby’s first or second week of life.to redirect the blood flow.
Three goals for the Norwood procedure:
1, Build a new aorta.
2, Direct blood from the right ventricle through the new aorta and on to the rest of the body.
3, Direct the right ventricle to pump blood to the lungs until the next surgery.
Although the risks of coronary angiography have declined over the years by increased clinical experience and advanced technologies, it still requires attention, knowledge and experience due to being an interventional diagnostic method. A safe coronary angiography begins with the selection of the appropriate catheter for the anatomical structure of the patient and the evaluation of the pressure when the catheter is placed in the coronary ostium. Coronary pressure waves are complementary requirements of angiography. The recognition, evaluation and precautions to be taken for abnormal pressure waves directly affect the mortality of the patient. One of the first clues to the presence of stenosis in the left main coronary artery (LMCA) is abnormal changes in pressure when the catheter is seated in the ostial LMCA. This often occurs as a “ventricularization” or “damping”. For decades, ventricularization was mostly experienced as a stenosis by invasive cardiologists [1]. Recognition of abnormal changes in pressure and precautions to be taken prevent catastrophic outcomes in patients
https://crimsonpublishers.com/ojchd/fulltext/OJCHD.000518.pdf
For more open access journals in Crimson Publishers
please click on https://crimsonpublishers.com/
For more articles in open journal of Cardiology & Heart Diseases
please click on https://crimsonpublishers.com/ojchd/
A transesophageal echocardiogram, or TEE, is an alternative way to perform an echocardiogram. A specialized probe containing an ultrasound transducer at its tip is passed into the patient's esophagus. This allows image and Doppler evaluation which can be recorded. It has several advantages and some disadvantages compared with a transthoracic echocardiogram.
Percutaneous Balloon Mitral Valvuloplasty (PBMV) is a procedure to dilated the mitral valve in the setting of rheumatic mitral valve stenosis. A catheter is inserted into the femoral vein, advanced to the right atrium and across the interatrial septum. Then the mitral valve is crossed with a balloon and it is inflated to relieve the fusion of the mitral valve commissures effectively acting to increase the mitral valve area and reduce the degree of mitral stenosis. Mitral regurgitation is a potential complication and thus PBMV is contraindicated if moderate or severe regurgitation is present. The Wilkins score examines mitral valve morphology and is determined via echocardiography to assess the likelihood of using PBMV based on certain echocardiographic criteria.
Although the risks of coronary angiography have declined over the years by increased clinical experience and advanced technologies, it still requires attention, knowledge and experience due to being an interventional diagnostic method. A safe coronary angiography begins with the selection of the appropriate catheter for the anatomical structure of the patient and the evaluation of the pressure when the catheter is placed in the coronary ostium. Coronary pressure waves are complementary requirements of angiography. The recognition, evaluation and precautions to be taken for abnormal pressure waves directly affect the mortality of the patient. One of the first clues to the presence of stenosis in the left main coronary artery (LMCA) is abnormal changes in pressure when the catheter is seated in the ostial LMCA. This often occurs as a “ventricularization” or “damping”. For decades, ventricularization was mostly experienced as a stenosis by invasive cardiologists [1]. Recognition of abnormal changes in pressure and precautions to be taken prevent catastrophic outcomes in patients
https://crimsonpublishers.com/ojchd/fulltext/OJCHD.000518.pdf
For more open access journals in Crimson Publishers
please click on https://crimsonpublishers.com/
For more articles in open journal of Cardiology & Heart Diseases
please click on https://crimsonpublishers.com/ojchd/
A transesophageal echocardiogram, or TEE, is an alternative way to perform an echocardiogram. A specialized probe containing an ultrasound transducer at its tip is passed into the patient's esophagus. This allows image and Doppler evaluation which can be recorded. It has several advantages and some disadvantages compared with a transthoracic echocardiogram.
Percutaneous Balloon Mitral Valvuloplasty (PBMV) is a procedure to dilated the mitral valve in the setting of rheumatic mitral valve stenosis. A catheter is inserted into the femoral vein, advanced to the right atrium and across the interatrial septum. Then the mitral valve is crossed with a balloon and it is inflated to relieve the fusion of the mitral valve commissures effectively acting to increase the mitral valve area and reduce the degree of mitral stenosis. Mitral regurgitation is a potential complication and thus PBMV is contraindicated if moderate or severe regurgitation is present. The Wilkins score examines mitral valve morphology and is determined via echocardiography to assess the likelihood of using PBMV based on certain echocardiographic criteria.
Overview of Intra-Aortic Balloon Pump (IABP)Suheil Dhanse
A brief introduction to mechanical circulatory support devices followed by a description of the functioning of intra-aortic balloon pumps. Ideal for cardiovascular technologists and cardiology fellows.
central venous pressure and intra-arterial blood pressure monitoring. invasiv...prateek gupta
central venous pressure and intra-arterial blood pressure monitoring. various sites for cvp and Ibp insertion. working principle for cvp and ibp. indication and complication. various waveform of cvp and ibp
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Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2. 2
Intra aortic balloon counter pulsation( IABP):
Most common and widely available methods of mechanical
circulatory support
Temporary support for the left ventricle by mechanically
displacing blood within the aorta
Concepts:
- Systolic unloading
- Diastolic augmentation
Traditionally used in surgical and non surgical patients
with cardiogenic shock
4. 4
Indications for IABP
1. Cardiogenic shock:
2. In association with CABG :
Preoperative insertion
- Patients with severe LV dysfunction
- Patients with intractable ischemic arrhythmias
Postoperative insertion
- Postcardiotomy cardiogenic shock
- Associated with acute MI
- Mechanical complications of MI - MR , VSD
3. In association with nonsurgical revascularization:
-Hemodynamically unstable infarct patients
-High risk coronary interventions
- severe LV dysfunction, LMCA, complex coronary artery disease
4. Stabilization of cardiac transplant recipient before insertion of VAD
Post infarction angina
Ventricular arrhythmias relathed to ischemia
16. 16
The IAB Counter pulsation system
- two principal parts
A flexible catheter -2 lumen
• first - for distal aspiration/flushing or pressure monitoring
• second - for the periodic delivery and removal of helium gas to a
closed balloon.
A mobile console
• system for helium transfer
• computer for control of the inflation and deflation cycle
18. 18
HEMODYNAMIC EFFECTS — Inflation and deflation of the balloon
Blood is displaced to the proximal aorta by inflation during
diastole.
Aortic volume ( afterload) is reduced during systole through a
vacuum effect created by rapid balloon deflation
19. 19
Expected changes with IABP support in hemodynamic profile in
patients with Cardiogenic shock
- Decrease in SBP by 20 %
- Increase in aortic Diastolic Press. by 30 % ( raise coronary blood flow)
- Increase in MAP
- Reduction of the HR by 20%
-Decrease in the mean PCWP by 20 %
- Elevation in the COP by 20%
21. 21
IABP catheter:
10-20 cm long polyurethane bladder
25cc to 50cc capacity
Optimal 85% of aorta occluded (not 100%)
The shaft of the balloon catheter contains 2 lumens:
- one allows for gas exchange from console to
balloon
- second lumen
- for catheter delivery over a guide wire
- for monitoring of central aortic pressure
after installation.
27. 27
Connect ECG
Set up pressure lines
Femoral access – followed by insertion of the supplied
sheath(7.5 F)
0.030 inch supplied J-shaped guide wire to the level of the
aortic arch (LAO view)
STEP BY STEP- IABP insertion
29. 29
Take the entire catheter and T handle as one unit
(DO NOT disconnect one-way
valve when removing the
extracorporeal tubing from the
tray.)
Pull out the T- handle only as shown
30. 30
• Remove stylet/aspirate/Flush
• Insert the balloon only over the guide wire
• Hold the catheter close to skin insertion point
• Advance in small steps of 1 to 2 cm at a time and
stop if any resistance.
• The IABP should advance freely
Inserting the Balloon catheter
- Many vascular complications occur during insertion itself
- Resistance during insertion either indicates PVOD, or dissection
- Kinking of IABP » improper inflation/deflation
31. 31
- The end of the balloon should be just distal (1-2 cm) to the takeoff of the
left subclavian artery
- Position should be confirmed by fluoroscopy or chest x-ray
Positioning
32. 32
Connecting to console:
- Connect helium gas tube to the console via a long extender
- Open helium tank.
- The central lumen of the catheter is flushed and connected to pressure
tubing with 3 way and then to a pressure transducer to allow for
monitoring of central aortic pressure.
- Zero the transducer
Initial set-up:
- Once connected properly the console would show ECG and pressure
waveforms.
- Check Basal mean pressure
- Make sure the setting is at “auto”
- Usually IABP started at 1:1 or 1:2 augmentation
- Usually Augmentation is kept at maxim
34. 34
Trigger modes
Trigger :
- Event the pump uses to identify the onset of cardiac cycle (systole)
- Pump must have consistent trigger in order to provide patient assist
- If selected trigger not detected, counter pulsation will interrupted
1.ECG
- uses the slope of QR segment to detect triggering point
2. AP(Arterial pressure wave)
- Systolic upstroke of the arterial pressure wave form is the trigger
3. IN(Internal trigger)
35. 35
ECG signal – most common
• Inflation
- middle of T wave
• Deflation
– peak of R wave
• Pacer (v/a)
• Arterial waveform
• An intrinsic pump rate
(VF, CPB)
36. 36
Auto Operation Mode
Automatic lead and trigger selection
Automatic and continuous inflation
and deflation timing management
- User has ability to fine-tune
deflation timing
Automatic management of irregular
rhythms
Semi-Auto Operation Mode
Operator selects most appropriate
lead and trigger source
Initial settings
46. 46
How to check waveform is acceptable ?
First change from 1:1 to 1:2 augmentation
Check the dicrotic notch
See if augmentation starts at that point
This should produce a sharp “V” at inflation.
47. 47
How to check waveform is acceptable ?
First change from 1:1 to 1:2 augmentation
Check the dicrotic notch
See if augmentation starts at that point
This should produce a sharp “V” at inflation.
Check if diastolic augmented wave is › systolic wave
48. 48
How to check waveform is acceptable ?
First change from 1:1 to 1:2 augmentation
Check the dicrotic notch
See if augmentation starts at that point
This should produce a sharp “V” at inflation.
Check if diastolic augmented wave is › systolic wave
Confirm if end diastolic wave
following the augmented wave
is less than an non augmented
wave.
Is Deflation slope ok
50. 50
Late Inflation
Inflation of the IAB markedly after closure of the aortic valve.
Waveform Characteristics:
• Inflation of IAB after the dicrotic notch.
• Absence of sharp V.
• Sub optimal diastolic augmentation
52. 52
Late Deflation
Late deflation of the IAB during the diastolic phase.
Waveform Characteristics:
• Assisted aortic end diastolic pressure may be equal to the
unassisted aortic end diastolic pressure.
• Rate of rise of assisted systole is prolonged.
• Diastolic augmentation may appear widened
55. 55
Variation in balloon pressure wave forms
Increased duration of
plateau due to longer
diastolic phase
Decreased duration
of plateau due to
shortened diastolic
phase
56. 56
Variation in balloon pressure wave forms
Varying R-R intervals
result in irregular
plateau durations
57. 57
Variation in balloon pressure wave forms
Increased height
or amplitude of
the waveform
Decreased height
or amplitude of the
waveform
58. 58
Variation in balloon pressure wave forms
Gas leak
Leak in the closed system causing the
balloon pressure waveform to fall below
zero baseline..
- due to a loose connection
- a leak in the IAB catheter
- H2O condensation in the external tubing
- a patient who is tachycardiac and febrile which causes increased gas
diffusion through the IAB membrane
59. 59
Catheter Kink
Rounded balloon pressure waveform
- Loss of plateau resulting from a kink or
obstruction of shuttle gas
- Kink in the catheter tubing
- Improper IAB catheter position
- Sheath not being pulled back to allow
inflation of the IAB
- IAB is too large for the aorta
- IAB is not fully unwrapped
- H2O condensation in the external tubing
61. 61
Patient Management During IABP support
Anticoagulation-- maintain apTT at 50 to 70 seconds
CXR daily – to R/O IAB migration
Check lower limb pulses - 2 hourly.
- If not palpable » ? - vascular obstruction
- thrombus, embolus, or dissection
(urgent surgical consultation)
Prophylactic antibiotics --??
Hip flexion is restricted, and the head of the bed should not be
elevated beyond 30°.
62. 62
Never leave in standby by mode for more than 20 minutes >
thrombus formation
Daily
– Haemoglobin (risk of bleeding or haemolysis)
– Platelet count (risk of thrombocytopenia)
– Renal function (risk of acute kidney injury secondary to distal
migration of IABP catheter)
Wean off the IABP as early as possible as longer duration is associated
with higher incidence of limb complications
Patient Management During IABP support
64. 64
Weaning of IABP
Timing of weaning:
- Patient should be stable for 12 – 24 hours
- Decrease inotropic support
- Decrease pump ratio
– From 1:1 to 1:2 or 1:3
- Decrease augmentation
- Monitor patient closely
– If patient becomes unstable, weaning should be
immediately discontinued
65. 65
IABP Removal
-Discontinue heparin 1 hour prior to removal
-Disconnect the IAB catheter from the IAB pump
- Patient blood pressure will collapse the balloon membrane for withdrawal
- Withdraw the IAB catheter through the introducer sheath until resistance
is met.
- NEVER attempt to withdraw the balloon membrane through the
introducer sheath.
-Remove the IAB catheter and the introducer sheath as a unit
- Check for adequacy of limb perfusion after hemostasis is achieved.
67. • 1. Major physiological effects of counter pulsation
include?
▫ A) increased coronary artery perfusion, increased preload,
decreased after load, decreased myocardial oxygen consumption
▫ B) increased coronary artery perfusion, increased preload,
increased after load, decreased myocardial oxygen consumption
▫ C) increased coronary artery perfusion, decreased preload,
decreased after load, increased myocardial oxygen consumption
▫ D) increased coronary artery perfusion, decreased preload,
decreased after load, decreased myocardial oxygen consumption
67
68. 2. the dicrotic notch on the arterial wave form
reflects
A) aortic valve opening
B) aortic valve closure
C) isovolumetric contraction
D)rapid ejection
68
69. 3. Expected changes with IABP support in hemodynamic
profile in patients with Cardiogenic shock include all
except?
A) Decrease in SBP by 20 %
B) Increase in aortic DP by 30 %
C) Decrease in MAP by 10%
D) Reduction of the HR by 20%
E)Decrease in the mean PCWP by 20 %
69
70. 4. late inflation of the balloon can result in?
A) premature augmentation
B) increased augmentation
C) decreased augmentation
D) increased coronary perfusion
70
71. 5. A rounded balloon pressure wave form
indicate?
A) helium leak
B) power failure
C) hypovolemia
D) balloon occluding the aorta
71
72. 6. width of balloon pressure wave form
corresponds to
A) length of systole
B) length of diastole
C) arterial pressure
D) helium level
72
73. 7. true statement
a) Dicrotic notch- land mark used to set deflation
b) Deflation is timed to occur during period of iso
volumetric contraction
c) Most common trigger used is arterial pressure
wave method
d) Internal trigger mode is acceptable to use in a
patient with normal sinus rhythm
73
74. 8. true statement
A) pacing spikes are automatically rejected in ECG
triggered modes
B) pacing trigger modes can be used in a patient
of 50% paced rhythm
C) Varying R-R interval result in regular plateau
durations in Balloon pressureWave form
74
77. • 1. Major physiological effects of counter pulsation
include?
▫ A) increased coronary artery perfusion, increased preload,
decreased after load, decreased myocardial oxygen consumption
▫ B) increased coronary artery perfusion, increased preload,
increased after load, decreased myocardial oxygen consumption
▫ C) increased coronary artery perfusion, decreased preload,
decreased after load, increased myocardial oxygen consumption
▫ D) increased coronary artery perfusion, decreased preload,
decreased after load, decreased myocardial oxygen consumption
77
78. 2. the dicrotic notch on the arterial wave form
reflects
A) aortic valve opening
B) aortic valve closure
C) isovolumetric contraction
D)rapid ejection
78
79. 3. Expected changes with IABP support in hemodynamic
profile in patients with Cardiogenic shock include all
except?
•A) Decrease in SBP by 20 %
•B) Increase in aortic DP by 30 %
•C) Decrease in MAP by 10%
•D) Reduction of the HR by 20%
•E)Decrease in the mean PCWP by 20 %
79
80. 4. late inflation of the balloon can result in?
• A) premature augmentation
• B) increased augmentation
• C) decreased augmentation
• D) increased coronary perfusion
80
81. 5. A rounded balloon pressure wave form
indicate?
• A) helium leak
• B) power failure
• C) hypovolemia
• D) balloon occluding the aorta
81
82. 6. width of balloon pressure wave form
corresponds to
• A) length of systole
• B) length of diastole
• C) arterial pressure
• D) helium level
82
83. 7. true statement
a) Dicrotic notch- land mark used to set deflation
b) Deflation is timed to occur during period of iso
volumetric contraction
c) Most common trigger used is arterial pressure
wave method
d) Internal trigger mode is acceptable to use in a
patient with normal sinus rhythm
83
84. 8. true statement
A) pacing spikes are automatically rejected in ECG
triggered modes
B) pacing trigger modes can be used in a patient
of 50% paced rhyth
C) Varying R-R interval result in regular plateau
durations in Balloon press. Wave form
84