«Below-the-ankle» angioplasty and stenting for...
Transcript of «Below-the-ankle» angioplasty and stenting for...
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« Below-the-ankle » angioplasty
and stenting for CLI
Jérôme BRUNET
Clinique Rhône-Durance - Avignon (France)
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Disclosure
Speaker name:
......BRUNET JEROME...................................................................
I have the following potential conflicts of interest to report:
Consulting
Employment in industry
Shareholder in a healthcare company
Owner of a healthcare company
Other(s)
I do not have any potential conflict of interest
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Critical Limb Ischemia
« Straight line flow to the foot »
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« Straight line flow to the foot »
Complete revascularization (patency of 3-vessel)
Uncomplete : at least 1-vessel
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« Straight line flow to the foot »Complete revascularization (ie patency of 3-vessel)
Uncomplete: at least 1-vessel.
Positive impact of «angiosome-Targeted» revascularization
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« BTA » lesion and Critical Limb Ischemia
1st step : anatomical consideration
• Modal anatomy
• Variant angiographic anatomy in foot vascularization
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BTK «3-vessel» modal anatomy
- ❶ Anterior tibial artery
- ❷ Posterior tibial artery
- ❸ Fibular artery
❶
❷
❸
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BTK «3-vessel» modal anatomy
- ❶ Anterior tibial artery
- ❷ Posterior tibial artery
- ❸ Fibular artery
❶
❷
❸
BTA «2-vessel» modal anatomy
- Dorsalis pedis from anterior tibial : ❹
- Plantar branches of the posterior tibial : lateral
plantar❺ and medial plantar❻
- Fibular is not directly connected to the pedal-
plantar arch (❹ ------❺)
❹
❺
❻
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anatomy
- ❸ Fibular is not directly
connected to the pedal-
plantar arch but can gives
collaterals :
- to the ❷ Posterior tibial via
a communicating branch of
the fibular
- to the ❶ Anterior tibial via
perforating branch of the
fibular
❸
❷
C Br
❶
P Br
❶
❷
❶
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BTA lesion and Critical Limb Ischemia
Knowledge of modal anatomy and angiographic variant is
mandatory
– Diagnosis is sometimes difficult
– Anatomy will help to define optimal treatment
according to hybrid strategy in CTO recanalization
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84 years. Diabete. Creat 28mg
Trophic disorder
ED: no arteriopathy
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Result after
1- Ant. Tib. recanalisation
(DES) via pedal access
2- Post. Tib. balloon
angioplasty
Is it enough?
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Focus on the foot
Vascular defect
Pedal access is ok
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Plantar arteries occlusion
(both lateral and medial)
Focus on the foot
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Plantar angioplasty
Balloon 1.5mm
Final result
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Variant angiographic anatomy in foot vascularization
Hypoplasic
anterior tib
Fibular continues in dorsal pedis
Male, 49yrs
CAD (left main)
Ischemic 1st left toe (isolated)
Rest pain and coldness
FOOT
angiogram
3 vessel patency
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Fibular
DP
Lateral branch
Medial
branch
Variant angiographic anatomy
Anterior tibial artery is hypoplasic
Dorsal pedis given by fibular divide
in 2 branches medial (1st toe) and
lateral (2nd to 5th toe)
Severe stenosis of medial branch
going to the 1st toe
The arch cannot supply because of
this particular anatomy : good
anatomic-clinic correlation
No trophic disorder
Medical treatment
Post tib
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CLI
Forefoot ulcers
Distal SFA occlusion (❶)
Re-injection on tibial bifurcation (❷)
❶
❷
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Fem-pop recanalization
Single-vessel run-off (fibular)
Is it enough for wound healing?
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Fibular Fibular
DPDP
Post tib
Post tib
LP
MP
Variant angiographic anatomy
Single-vessel run-off (fibular) …
…. but connected to dorsalis pedis
and lateral plantar
Tibial recanalisation isn’t indicated
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BTA lesion and Critical Limb Ischemia
Knowledge of modal anatomy and angiographic variant is mandatory
1. Diagnosis is sometimes difficult
2. Will help to define optimal treatment according to hybrid
strategy in CTO recanalization
• Antegrad
• Retrograd
– Via the arch
– Via collateral
– Via ultradistal access
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Ant tib
Dorsalis pedis
Distal posterior tibial occlusion
Pop
Post tib
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Failure to cross distal tib post occlusion
0.14 dorsalis pedis
Connection dorsalis pedis- lateral plantar
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Amphirion 2.0/80 mm (antegrad) then DCB IMPACT 2.5/80mm
No stent in « BTA » : risk of compression/rupture (plantar flexion with distal PT)
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TPT occlusionAnt. tib
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TA occlusion
Bridging collatéral
Collateral from peroneal
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TA occlusion
Bridging collatéral
Collateral from fibular
Pedal restitution below the ankle
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-----TA occlusion
Bridging collatéral
Collateral from peroneal
Peroneal late
and retrograd
filling
Pedal restitution below the ankle
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TPT Cypher 3.5/18mm
TPT recanalization
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Fibular recanalization will give an access for retrograd TA crossing via fibular collateral
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b 2.0/20mm (retrograd)
Amphirion 2.0/80 mm (antegrad) then DCB IMPACT 2.5/120mm
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1 month follow up
Final result
No stent in « BTA »: risk of compression/rupture (dorsiflexion with dorsalis pedis)
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1 month follow up
Final result
3 years follow-up : focal restenosis
post DEB at 12 month on anterior
tibial (prox cap) treated with
Everolimus DES
No stent: risk of compression/rupture in dorsiflexion
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Final example
Female 76 yrs (2009)
CLI
Rest pain
Ischemic forefoot
Toe ulceration
Foot angiogram :
- Distal posterior tibial
artery occlusion ❶
- Hypoplasic anterior
tibial artery ❷
-Fibular artery
perforating branch
continues as the
dorsalis pedis ❸
❶
❷
❸
❸
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Posterior tibial occlusion Result after balloon angioplasty
Lateral Plantar
Medial
plantar
Post Tib.
Lateral Plantar
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Good initial clinic evolution ….
… but recurrent rest pain at day 4
leading to hospital readmission
Angio : re-occlusion
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Stent 2.5/24mm
Final result
after bail -out stenting
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Stent 2.5/24mm
6 years follow-up
Wound healing - No MACE
Posterior tibial artery still patent
(ED) despite stent compression
Residual plantar forefoot pain
specially when driving (clutch
pedal)
Switch for automatic
transmission 1 year later (no
amputation but new car : cost
effective?)
Final result
after bail -out stenting
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« Below-the-ankle » lesion require specific analysisAnatomical consideration
Ultraselective angio (focus on the foot)
Hybrid approach for crossingAntegrade
Retrograde (via pedal-plantar arch, via collateral, via ultradistal retrogradaccess)
Treatment = Balloon Angioplasty (DCB )
Stenting only for bail-outHigh restenosis rate with nitinol stents
Compression/rupture with bare stentsFoot dorsiflexion with dorasalis pedis
Foot plantar flexion with distal tibial post
Conclusion