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Below-the Knee: Anatomy, Angiography and Intervention. Yoshiaki Yokoi, M.D.,FACC,FSCAI Department of Cardiology Kishiwada Tokusyukai Hospital Osaka, Japan. 2010. Critical Limb Ends up by Major Amupatin. Different Diagnosis of Diabetic Foot. Skin Perfusion Pressure for Severe Limb Ischemia.
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Below-the Knee: Anatomy, Angiography and Intervention Yoshiaki Yokoi, M.D.,FACC,FSCAIDepartment of CardiologyKishiwada Tokusyukai HospitalOsaka, Japan 2010
80% accuracy of skin perfusion pressure • < 30 mmHg ; Non healin ulcer • > 30 mmHg : Ulcer healing Castronuovo et al. J. Vasc. Surg. 1997; 26: 629-637.
Ischemic Wound healing is unlikely (CLI) Marginal Ischemia (PAD) Not Ischemic Wound Critical Limb Ischemia by SPP Adapted from Castronuovo et al. J. Vasc. Surg. 1997; 26:629-637.
Ischemic or Diabetic? 64yo, male, Diabetus, Dialysis、 60yo, male, Diabetus, Dialysis、
Diabetic vs. Ischemic 64 yo, M, DM, HD 60yo, M, DM, HD SPP 90mmHg SPP 25mmHg SPP 75mmHg SPP 20mmHg
Below-the KneeAwareness of anatomical variations for infrapopliteral intervention
Basic Knowledge of Infrapopliteal Artery Anterior tibial a. Anterior tibial a. Posterior tibial a. Tibioperoneal trunk Dorsal pedis a. Posterior tibial a. Lateral plantar a. Peroneal a. Medial plantar a.
Anatomical variations of infrapopliteal artery Type I-A Type I-B Type I-C Kawarada O, Yokoi Y. Cathet Cardiovasc Interv,
Anatomical variations Type I-A:
Anatomical variations Type I-B: Trifurcation 1C ないですか?
Anatomical variations- High ATA - Type II-B Type II-A1 Type II-A2 Type II-C
Anatomical variations High ATA: TypellA-1 ⅡA2、ⅡB、ⅡCないですか?
Variation of Infrapopliteal Artery ATA ATA High take off ATA PTA PTA Peroneal Peroneal Plantar Dorsal pedis
Angiography for BTK Intervention • Puncture common femoral artery - Two wires technique • Placing short sheath - Femoropopliteal artery angiography • Placing 30cm sheath - Infrapopliteal artery angiography • Placing 3-4Fr Multipurpose catheter - Two ipsilateral views - Two contralateral views
Double Wire Technique A B C D 4Fr sheath DFA 0.025’ DFA SFA 0.025’ 0.025’
SFAとDFAの分離 87歳、男性,、Ruhterford 3
Stepping DSA for Femoropopliteal and Infrapopliteal Artery 61 year, Male, Rutherford 4NIDDM, Resting pain
How to take left BK angiogram LAO 30° RAO 30°
Left Infrapopliteal Artery Left Infrapopliteal Artery Ipsilateral Contralateral
Distal Left Infrapopliteal ArteryPre and Post Angioplasty Pre Post
Infrapopliteal Artery Angiography • The most difficult artery for angiography • DSA with a small amount of dye • Separation of three tibial arteries • Clarify: Anterotibial to dorsal pedis Poserotibial to plantar artery • Proximal BK: Ipsilateral view • Distal BK: Contralateral view
Infrapopliteal artery AngioplastyTwo Vessel Runoff: Anterotibial
55 y/o Male Rutherford 6 • Tissue loss of right 2nd and 3rd toe • Hemodyalysis×7years • Diabetus SPP 40/46 mmHg
Complete Revascularizationby balloon angioplasty Pre Post Pre Post 2 months
65 y/o Female, Ruthrford 4 Pre Pre Post SPP 18 mmHg Post SPP 67 mmHg
Antegrade BTK Intervention A Case
- Approach and Devices - Antegrade access ■4Fr 30cm sheath ■4Fr MP catheter 80cm Passage of the lesion ■0.014” runthrough 175cm (Terumo) ■0.014” NEOS Cruise 175cm (Asahi Intec) ■0.018” Treasure 175cm 12g (Asahi Intec) ■0.014” Miracle 175cm 12g(Asahi Intec) Balloon dilatation ■2.0~2.5/40~100mm, 90cm OTW PTA balloon
How Do I Intervene BK CTO (1)- Do understand anatomy - 74 y/o, female Diabetus R-5
How Do I Intervene BK CTO (2)- Do understand anatomy - 74 y/o, female Diabetus R-5
How Do I Intervene BK CTO (3)- Super selective angiography throughOTW balloon - Super selective angiogram Advancing wire 0.018inc. Treasure 12g Balloon angioplasty2.5X100mm
How Do I Intervene BK CTO (4)- Repeat angiography after initial dilatation - Super selective angiogram Crossing wire to dorsal pedis Confirm the wire in the vessel
How Do I Intervene BK CTO (5)- From ATA to Peroneal Intervention - 74 y/o, female Diabetus R-5
How Do I Intervene BK CTO (6)- Take the complete BK angiogram –- Proximal BK -
How Do I Intervene BK CTO (6)- Take the complete BK angiogram –- Distall BK -
How Do I Intervene BK CTO (6)- Take the complete BK angiogram - Pre Post 74 y/o, female Diabetus R-5
How Do I Intervene BK CTO - Tip and Tricks- • Be aware of complex BK anatomy • Wiring with OTW balloon2-2.5mmX10cm • Before wiring CTO, super selective angiographyshould be performed and map the distal vessel • In wire selection, firstly soft 0.014incwire • Minimise the stiff wire negotiation length • Judge the timing to intervene to another vessel