Pediatric Therapeutic Catheterization - UC Davis Health · 2015. 8. 11. · Pediatric Therapeutic...
Transcript of Pediatric Therapeutic Catheterization - UC Davis Health · 2015. 8. 11. · Pediatric Therapeutic...
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Pediatric Therapeutic
Catheterization
Stuart Berger, M.D.
Director, Heart Center
UC Davis Children’s Hospital
May 2, 2015
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1900 1920 1940 1960 1980 2000
Maude
Abbott
Robert
Gross
Alfred Blalock
Helen Taussig
Cardiopulmonary
Bypass
Balloon atrial
Septostomy
A Century of
Cardiology
Echocardiography
Prostaglandins
Intervention
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Children’s Hospital of Wisconsin
Cardiac Catheterization Laboratory
0
50
100
150
200
250
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350
400
1993 1994 1995 1996 1997 1998 1999 2000
Diag Cath
Ther Cath
Total Caths
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Therapeutic Catheterization
Balloon atrial septostomy (echo guidance)
Pulmonary and aortic valve dilatation
Arch and pulmonary artery dilatation
Stenting: pulmonary arteries/coarctation
Coil Embolization
Intravascular Devices:
Patent ductus arteriosus
Atrial septal defects
Patent foramen ovale
Ventricular septal defects
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Therapeutic Catheterization
Percutaneous placement of valves
Pulmonary (Melody, others)
Aortic
Miscellaneous procedures
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Balloon Atrial Septostomy
“Creation of an Atrial Septal Defect
without Thoracotomy”
Dr. William Rashkind, Philadelphia
J.A.M.A., 1966
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Transposition of the Great Arteries
Pulmonary artery
Aorta Head
Legs
Lungs
Mixing sites:
Ductus arteriosus
Atrial septal defect
Ventricular septal defect
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Balloon Atrial Septostomy
in Transposition of the
Great Arteries
LA
LV RA
RV
Balloon
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Balloon Valvuloplasty
“Percutaneous Balloon Valvuloplasty:
A New Method for Treating Congenital
Pulmonary Valve Stenosis”
Dr. Jean Kan, Baltimore
N.E.J.M, 1982
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Transcatheter Balloon Valvuloplasty
The use of balloons to
relieve valve obstruction
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Critical Pulmonary
Valve Stenosis
RV Pre-dilatation
Lateral
projection
Obstructied
pulmonary
valve
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Transcatheter Pulmonary
Balloon Valvuloplasty
Amplatz guide wire
Balloon
guides
Calibration
guides
Balloon
catheter
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Aortic Valvuloplasty
Results generally less predictable
Issues:
Increased risk, dysrhythmia and rupture
Aortic insufficiency
Technically, more challenging
Period of no cardiac output
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The Continuum of Aortic Valve
Disease
Hypoplastic Left Heart Syndrome
“Critical” Neonatal Aortic Valve Stenosis
Aortic Valve Stenosis
Bicuspid Aortic Valve
Fused Trileaflet Aortic Valve
“The worst congenital heart abnormality is aortic
valve disease, because it is never cured” R.D.Rowe, Hospital for Sick Children
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Stenotic Trileaflet
Aortic Valve
Fused
Commissure
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Unicuspid Aortic Valve
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Balloon Arterioplasty
“Transluminal Treatment of
Arteriosclerotic Obstruction”
Dr. C.T. Dotter and M.P. Judkins,
Circulation, 1964
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Transcatheter Arterioplasty
Left pulmonary
artery narrowing
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Transcatheter Arterioplasty
Left pulmonary
artery post balloon
dilatation
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Pulmonary arteries in pulmonary atresia
Coarctation of the aorta
Systemic veins
? Pulmonary veins
Pediatric Indications:
Intravascular Stenting
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Vascular Stenting
Advantages:
Enables opening of elastic and rigid vessels
Reduced risk of vessel wall damage, dissection,
rupture or aneurysm formation
Disadvantages:
Generally applicable only in older children/adults
Technically challenging to perform
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Palmatz
Stent on
Balloon
Catheter
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Superior vena
caval obstruction
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Stent dilatation
of superior
vena caval
obstruction
Guide wire
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Superior vena caval
obstruction relieved
after stent placement
Stent
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Coarctation of the Aorta
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Juxtaductal Coarctation of the Aorta
AAo
DAo
Coarctation
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Palmatz stent
in position
Juxtaductal Coarctation
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Juxtaductal Coarctation
Angiogram
following
relief of
coarctation
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OCCLUSION OF BLOOD
VESSELS
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Indications for Transcatheter Occlusion
Patent ductus arteriosus
Secundum atrial septal defects
Patent foramen ovale in cryptogenic
stroke patients
Fenestrated Fontan
Apical muscular VSD’s
Coronary-cameral fistulae
Selected aortico-pulmonary
connections
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Coil Embolization
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Coil Embolization
Gianturco
coils
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Patent ductus
arteriosus
RA
RV
LV
LA
Aorta
Pulmonary
artery
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Pulmonary
artery
Aorta
Lateral angiographic
view of a moderate
sized patent ductus
arteriosus
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Aorta
Pulmonary
artery
Delivering a
Gianturco coil
Delivery
catheter
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Antegrade
approach to
ductal occlusion
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Amplatzer Duct
Occluder Nitinol basket
Dacron
filaments
Delivery sheath
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Amplatzer Duct
Occluder
Screw-in attachment
mechanism
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Release cable
Positioning of the Amplatzer
Ductal Occluder
Ao
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The Amplatzer
Ductal Occluder
in position prior
to release of the
retention cable
Ao
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ASD Occlusion
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Atrial Septal Defects
Indications for Operative Intervention
Symptomatic congestive heart failure
Prevention of right heart volume overload and subsequent dysfunction
Pulmonary hypertension
Predisposition to pulmonary infection
Paradoxical emboli
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Frequency Distribution of
Congenital Cardiac Abnormalities
Ventricular septal defects
Pulmonary valve stenosis
Atrial septal defects
Atrioventricular septal defects
Tetralogy of Fallot
D-transposition
Coarctation of the aorta
Hypoplastic left heart syndrome
Aortic stenosis
Patent ductus arteriosus
Others
32.1%
9.0%
7.7%
6.4%
6.8%
4.7%
4.6%
3.8%
2.9%
2.4%
19.6%
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Atrial Septal Defects
4 sub-types
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Amplatzer “Nitinol Basket” Occluder Device
2 opposing flat baskets, joined by a
central hub, all woven with fine Nitinol
wire
Variable size connecting hub
Filled with Dacron or polyurethane
strands
Potential problems:
•High profile position
•Wire exposure
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Left Atrial Aspect
Waist
Right Atrial Aspect
Releasing
Cable
Amplatzer
ASD
Device
Nitinol Basket
filled with
Dacron threads
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Amplatzer Septal Occluder
Nitinol Basket
filled with
Dacron threads
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Amplatzer Septal
Occluder being
extruded from
sheath
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LA
RA
RV
Ao anterior
right
Color Doppler of
secundum ASD
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Sizing the Atrial Defect
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LA
RA RV
Ao anterior
right
Amplatzer device being
positioned within the atrial defect
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“Minnesota Wiggle”
LA
RA
Release cable
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LA
RA RV
Ao anterior
right
Amplatzer device positioned and
released within the atrial defect
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LA
RA
SVC anterior
right
Long axis view of Amplatzer device
positioned within the atrial defect
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AND COMING SOON!!!!
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Melody Valve
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The Role of RVOT Valvar
Competency
• Infant cardiac repairs benefiting from RVOT
competency.
♥ Tetralogy of Fallot
♥ Pulmonary atresia with VSD
♥ Absent pulmonary valve syndrome
♥ Ross repair
♥ Truncus arteriosus
♥ DORV, TGA – Rastelli
12-15% of CHD
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Conclusions
The Cath lab has become a very
specialized place.
Echocardiography remains the gold
standard for initial diagnosis and is
integral in performance of interventional
procedures.
Interventional catheterization continues
to grow.
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Conclusions
Current therapeutic catheterization
procedures that are accepted as the
standard of care:
Balloon dilation of pulmonary valve
Balloon dilation of recurrent coarctation
Balloon dilation/stenting of pulmonary
arteries
Percutaneous valve placement
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Conclusions
Cath procedures that are accepted as standard of care:
Stenting of recurrent coarctation
Coil occlusion of PDA
Device occlusion of PDA
Device occlusion of secundum ASD
Device occlusion of muscular VSDs
Device occlusion of PFO
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THANK YOU VERY MUCH!!!!