Lựa chọn ống thông can thiệp:
Mẹo để hỗ trợ can thiệp
và giảm biến chứng
PGS TS Hồ Thượng Dũng, FSCAI
BV Thống Nhất, TP HCM
HÀ NỘI- 10/ 2016
• Chọn lựa ống thông can thiệp là chìa khóa giúp mở
cánh cửa thành công trong can thiệp mạch vành
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
2
Chức năng và đặc điểm của
Ống thông can thiỆp
Chức năng của ống thống can thiệp
• Conduit for transporting guide
wire & devices
Polymer Blend
Back up support
Curve retention
Shaft stiffness
• Mode for injecting contrast
• Platform for back up support
during intervention
• Mechanism for measuring aortic
& arterial pressures
Wire Braid
Inner Liner
Kink resistance
Torque response
Shaft radiopacity
Device Passage
.070”
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
4
Ống thông can thiệp so với
Ống thông chẩn đoán
• Stiffer shaft
• Larger internal diameter (ID)
• Shorter & more angulated tip
• Re-enforced construction
• (3 vs. 2 layers)
• Tip Non Tapered.
• Tip May be Soft or Radiopaque.
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
5
Các đặc tính quan trọng cần thiết của
Ống thông can thiệp
Many Principles similar but some variations in size
and catheter types to accommodate various devices.
• Atraumatic tip
• Proper preformed shape ( co-axial with vessel)
• Access site
• Active vs. Passive Support
• Torque control
• Kink resistance
• Radiopacity
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
6
Cấu tạo và cấu trúc của
Ống thông can thiỆp
Cấu tạo- cấu trúc của
ống thông can thiệp
Overall
stiffness
6/20/2016
Torque
Generation
Smooth passage delivery of
devices
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
8
Lòng ống thông can thiệp lớn hơn
Advantage
Disadvantages
• Better opacification of
the contrast
• Better guide support
• Allow pressure
monitoring
• Allow special devices and
technique
• Ostia trauma
• Vascular complication
• Possible kinking of cath
shaft
• Rotablator
• Kissing balloons
• Kissing stents
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
9
Curve/Tip Length
S
Judkins
Left
4.0
3.0
5.0
P
Tip Length = P to S distance (cm)
P = Primary Curve
S = Secondary Curve
6/20/2016
Sources: Diagnostic and Therapeutic Cardiac Catheterization; Grossman’s Cardiac Catheterization,
Angiography, and Intervention
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
10
Đặc điểm và cơ chế hoạt động
MỘT SỐ Ống thông can thiỆp
Chọn lựa ống thông can thiệp
Variable
Requirements
• Aorta Size
• Co-axial intubation
• Location of ostia
• Adequate support
• Vessel course
• Additional device/
technique
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
13
Left Guide Catheters Curves
Judkins Left
6/20/2016
•Designed for LCA interventions
•Simple straightforward PCI
•Easy to engage LCA
•As the primary curve is fixed, the GC may
not be co-axial with the index artery
•Sometimes may be difficult to pass
balloon/ stent
•As the primary curve is fixed, LCX PCI may
be difficult to pass balloon/ stent
•If the LCA have high take off, increase risk
of prolapsed and dislodgement
•Weak back up support
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
14
Left Judkins Manipulation
Dehmer & Popma: Cathsap III
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
15
Left Judkins Manipulation
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
Dehmer & Popma: Cathsap III
16
Curve/Tip Length
Tip Orientation
6/20/2016
Lateral Wall Support
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
17
Aortic Root Size
How to select the size of the catheter
Normal
Normal root size usually
requires a primary curve of 3.5
to 4.0
6/20/2016
Narrow
Narrow roots require a
downsize in the primary curve,
3.0 to 3.5
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
Dilated
Dilated roots require an
upsize in the primary curve
4.0 to 4.5
18
Co-axial Alignment
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
19
Left Guide Catheters Curves
Amplatz Left
•Particulary useful for posterior and
anterior Take-off
•Niche use for LCA interventions
•Rest on the aortic root, providing for
addition back up support
•Prone to dissect the ostium
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
20
Amplatz Manipulation
Dehmer & Popma: Cathsap III
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
21
Amplatz Removal
Chú ý dễ bị bóc tách
Advance catheter
6/20/2016
Rotate tip away from ostium
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
22
Right Judkins Manipulation
Dehmer & Popma: Cathsap III
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
23
Right Judkins Manipulation
Dehmer & Popma: Cathsap III
6/20/2016
Ho Thuong Dung, Thong Nhat hospital, Hochiminh city, VN
24
Chọn lựa sử dụng
Ống thông can thiỆp
trong một số tình huống
Tại sao có quá nhiều loại ống thông
hình dạng và kích thước khác nhau?
• Left or right coronary system
• No two anatomies are the same
• Large or small patients
• Small or enlarged aortas
• Different vessel take off
• Lesion morphology & location
• Device strategy
6/20/2016
Ho Thuong Dung, Thong Nhat hospital,
Hochiminh city, VN
26