Meruzhan Saghatelyan - Retrograde Cases with serious complications: Benign course, complicated...
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Retrograde Cases with serious complications: Benign course, complicated course and fatal
Meruzhan Saghatelyan, MD
Head of Angiography Department, Erebouni Medical Center
Nork Marash Medical Center, Yerevan, Armenia
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Georgios Sianos, CTO Summit 2015
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EuroIntervention 2013;9:102-116Contemporary retrograde approach for the recanalisation of coronary chronic total occlusion: on behalf of the Japanese Retrograde Summit Group
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Case 154 years old man with unstable angina
CABG procedure 6 years ago
LIMA to LAD, SVG to OM, SVG to PDA
Present Angiographic Data:
High grade stenosis of SVG – OM proximal part and at the distal anastomosis
Very long CTO of dominant RCA starting from proximal part and ending at distal bifurcation, diffuse long lesion of the big PL branch after the bifurcation: SVG functioning only for PDA
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RCA CTO starting from proximal part CTO ending at the distal bifurcation, diffuse subtotal lesion of postero-lateral artery
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Atrial channel to PL artery
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CC tracking with SION Tip injection from Corsair
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Puncture of distal cap with Conquest Pro
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Retro wire passage and antegrade preparation Antegrade puncture with Conquest Pro
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Allignment of bilateral gears for reverse CART procedure Corsair was stuck and impossible to control further retro wire
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Perforation of proximal RCA Atrial channel rupture due to Corsair manipulation
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4 days later
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Retrograde procedure using SVG Retrograde knuckle wiring with Pilot 50 and OTW balloon
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Reverse CART and externalization
Wiring of PL artery
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Final result after stenting with 4 DES
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Take home message
In long CTO lesions with unknown vessel course manipulation of penetrating stiff wire can automatically cause perforation
Rotational movement of Corsair can damage angulated epicardial channel, it might be better to use other type microcatheter in such channels
Coronary perforation and/or collateral channel rupture in a patient with a previous open heart surgery is benign in general and does not result in cardiac tamponade.
Anyway, local accumulation of blood is possible with a compression of specific heart chamber such as left or right atrium, right ventricle, but it is of a rare incidence.
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Case 258 years old man with stable angina and dyspnea
Ex-smoker
Hypertension
Hyperlipidemia
Angiographic findings:
Flush occlusion of proximal RCA and a separate short calcified CTO of distal RCA ending just at the distal bifurcation; retrograde filling of the distal vessel by septal collaterals
Short CTO lesion of mid LCX
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Antegrade GAIA II Tip injection in septal channel
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Passage of SION into distal RCA Tip injection from Corsair
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Distal cap puncture with Conquest Pro Subintimal course of retrograde Conquest Pro
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Rewiring with Fielder FC
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Reverse CART
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Externalization and antegradewire passage into distal branches
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Antegrade injection after predilatation Contrast is visible in pericardial space
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Still some extravasation after stenting
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Final result after prolonged balloon inflation with low pressure
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2 hours later hypotension occurred with pallor and tachycardia
Same amount of pericardial effusion without signs of tamponade
Impairment of free RV wall motion
Pericardial tap with removal of about 100 ml of blood
No leakage form RCA on control angiogram
Delayed recovery during a week of hospital stay
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Take home messageTo penetrate the distal cap at the distal bifurcation often very stiff wire is needed from retrograde side.
Advancement of the stiff retrograde wire through diffuse plaque can easily cause perforation that will become bigger with following advancement of the Corsair.
After successful penetration it is better to do step down for further tracking before advancement of the retrograde microcatheter.
Free RV wall motion impairment could be explained by possible extensive subintimal/intramural hematoma
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Case 377 years old man presented with recurrent pulmonary edema
Moderate elevation of cardiac markers suggested a diagnosis of ACS
LAFB on ECG
Moderate –to severe LV systolic dysfunction with inferior and posterolateral hypokinesis
History of stroke 6 months ago
Total occlusion of the right and high grade stenosis of the left ICA by Dupplexscanning
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Coronary angiographyDistal LM stenosis of 70 – 80%
Diffuse and calcified disease of mid – to – distal LAD with two steep angulations in its course
Diffusely diseased small circumflex artery
Heavily calcified mid RCA CTO with diffuse disease of distal vessel, filling of the distal RCA from septal and atrial epicardial channels
High take-off of both radial arteries with reverse angle loop join with axillary
Tortuous calcified deformation and extreme kinking of both iliac arteries and abdominal aorta
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Planning the revascularization
The patient was considered inacceptable for open surgery
Anyway, he remained of very high risk also for PCI
PCI strategy:
Antegrade recanalization of RCA
Distal LM PCI probably with one stent strategy
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Antegrade procedure using bifemoral approach GAIA II
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Conquest Pro subintimal passage Unsuccessful parallel wiring
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LM PCI procedure after septal channel wiring
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DES in LM to proximal LAD
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Result after LM stenting Corsair tip injection in distal RCA
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Retrograde tracking with GAIA II Preparing for reverse CART, however…
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Sudden onset of hemodynamic collapse.
Fast check of the left system showed abrupt occlusion of LAD just after take-off of the septal /not recorded/, although ACT had been kept about 350.
Ventricular fibrillation, cardiac arrest and unsuccessful CPR
No way to pass the wire into mid LAD
Gave up after prolonged resuscitation efforts
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Calcified plaque and the loop of LAD did not allow distal wiring in the setting of acute injury and occlusion
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Take home messagePlanning revascularization procedure in very high risk patient should be kept under the rule “as simple as possible”.
If both LM PCI and RCA CTO PCI procedures are planned in a clinically unstable high risk patient, it might be better to postpone RCA CTO PCI to a time when the patient had shown stability for a considerable period.
If distal artery access is complicated in donor vessel system and the artery has diffuse calcified disease it is better not to use collateral channels from that artery for retrograde procedure unless the operator can secure that artery for sure.
Corsair manipulation in diffusely diseased calcified vessel can cause donor vessel injury and occlusion even with ACT level above 350.
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Thank you