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2 0
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Update On Results With The CGuard™ MicroNet Covered Stent (InspireMD) For CAS:
Does It Prevent Strokes: Does It Cause ISR Or Other Long-Term Problems:
Can It Have Value In Other Vascular Beds?
Piotr Musialek, MD DPhil
Jagiellonian University Dept. of Cardiac & Vascular Diseases John Paul II Hospital, Krakow, Poland
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OPINIONS matter
(ASSUMPTIONS – less so)
P Musialek @ VEITH 2018
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HYPOTHESES may be interesting
P Musialek @ VEITH 2018
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are
FACTS
P Musialek @ VEITH 2018
but what is critical to the decision-making Physician…
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FACT #1
P Musialek @ VEITH 2018
ZERO evidence that OMT is sufficient to
prevent strokes
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FACT #1
P Musialek @ VEITH 2018
ZERO evidence that OMT is sufficient to
prevent strokes
We CONTINUE to receive patients with
SYMPTOMS (incl. Strokes) DESIPTE OMT
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FACT #2
P Musialek @ VEITH 2018
Assumptions are not powered
to dismiss
Large-scale level 1 evidence
(ACST, >3100 pts)
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”Systematic Review and Analysis”…
where is ACST ? (n=3120)
Musialek & Hopf-Jensen J Endovasc Ther 2017;24:138-148
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A. Halliday et al. (10-year ACST data) Lancet 2010
n=3120 (immediate vs. deferred CEA)
Stroke reduction with carotid stenosis revascularization
6%
6%
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6%
A. Halliday et al. (10-year ACST data) Lancet 2010
Stroke reduction with carotid stenosis revascularization
in patients on lipid-lowering Tx
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FACT #2
P Musialek @ VEITH 2018
Assumptions are not powered to dismiss
Large-scale level 1 evidence (ACST, >3100 pts)
If someone wants to dismiss it,
they need to show new (different) level 1 evidence!
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Conventional Carotid Stents Do Have A Problem
Image courtesy Joan Rigla, MD PhD; Perceptual Imaging Lab, Univerity of Barcelona
Human carotid artery treated using a conventional stent; OCT
P Musialek @ VEITH 2018
FACT #3
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CEA excludes the plaque .
P Musialek @ VEITH 2017
2 0
1 8
FACT #4
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CEA excludes the plaque
In CAS, the stent should exclude the plaque too
.
.
P Musialek @ VEITH 2017
2 0
1 8
FACT #4
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CEA excludes the plaque
In CAS, the stent should exclude the plaque too
.
.
P Musialek @ VEITH 2017
2 0
1 8
FACT #4
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The CGuard™ MicroNet-Covered Embolic Prevention Stent System
is effective in reducing peri- and post-procedural cerebral embolism
(Routine DW-MRI data in CARENET; results
reproduced by 2+ other studies) P Musialek @ VEITH 2018
FACT #5
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Per-Protocol DW-MRI cerebral imaging at B/L, 24-48h after CAS, and at 30 days
CGuard™
P Musialek @ VEITH 2017
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P Musialek @ VEITH 2017
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P Musialek @ VEITH 2017
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P Musialek @ VEITH 2017
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Musialek & Stabile EuroIntervention 2017
Tomyuki Umemoto et al. EuroIntervention 2017
P Musialek @ VEITH 2018
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Musialek & Stabile EuroIntervention 2017
Tomyuki Umemoto et al. EuroIntervention 2017
. . .
.
. .
. . . .
. . . . . . . . . . .
. . .
. . . . . . . .
P Musialek @ VEITH 2018
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Also, CGuard™ enables
routine Endovascular Reconstruction
of the Carotid Bifurcation
(systematic CEA-like effect of CGuard™ CAS)
P Musialek @ VEITH 2018
FACT #6
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Endovascular Solution for All-Comers
Endovascular Reconstruction of the Carotid Bifurcation
Note self-tapering
Prevention of embolism, High radial force, Conformability P. Musialek @ VEITH 2018
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Procedural risk level
(vs. the disease natural history risk)
is critical for physician decision-making
P Musialek @ VEITH 2018
FACT #7
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P Musialek @ VEITH 2018
PHARMACOTHERAPY + INERVENTION
ISOLATED PHARMACOTHERAPY
”Asymptomatic” Carotid Stenosis Decision-making
?
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P Musialek @ VEITH 2018
PHARMACOTHERAPY + INERVENTION
ISOLATED PHARMACOTHERAPY
”Asymptomatic” Carotid Stenosis Decision-making
RISK OF PROCEDURE
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Fundamental Issue
Vascular Clinic Referral Patient
General Popu- -lation Subject
”People” with Carotid Stenosis
=
annual ipsilateral stroke
risk 2.5-3.0%
annual ipsilateral stroke
risk ≈0.5%
Musialek & Hopf-Jensen J Endovasc Ther 2017;24:138-148
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Musialek & Hopf-Jensen J Endovasc Ther 2017;24:138-148
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PARADIGM
P. Musialek, A. Mazurek et al. EuroIntervention 2016;12:e658-70 (PARADIGM design and 30-day outcome data)
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CGuard™ - CAS can achieve peri-procedural and 30-day complication rate
at the level of ≈1%
- not only in ”selected” patients bus also in
All-comers
P Musialek @ VEITH 2018
FACT #8
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Evidence clinical
P Musialek @ VEITH 2017
10 studies +
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Prospective evaluation of All-comer peRcutaneous cArotiD revascularization in sympto-
matic and Increased-risk asymptomatic carotid artery stenosis using the CGuard™ Micronet-covered
embolic prevention stent system
The PARADIGM Study
P Musialek @ VEITH 2017
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30d data
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PARADIGM
One patient, with symptomatic RICA stenosis (minor right-hemispheric stroke 2 months prior to CAS), had hypotonia and transient, fluctuating cognitive dysfunction at 24-48h after CAS. The patient had additional neurologic evaluation on discharge (day 7) that showed no change in NIH-SS [=3] and no change in modified Rankin scale [=1] against 48h (and baseline) evaluation. CT scan on day 2 showed no new cerebral lesions but day 6 CT indicated an extension of the prior lesion in the right hemisphere. The event, in absence of right haemispheric symptoms and in absence of any clinical sequelae, was CEC–adjudicated as ’minor stroke in relation to CAS’.
P. Musialek @ ePCR 2016
*
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Evidence is accumulating that CGuard™ accompanied by OMT
(that is ALWAYS the fundament)
shows effective stroke prevention throughout 3 years
in absence of device-related issues
P Musialek @ VEITH 2018
FACT #9
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n=251
PARADIGM – Extend
0 . ipsilateral stroke
any stroke
stroke-related death
any death
in-stent velocities
MI or other non-cerebral VA
1-12 mo
12-24 mo
24-36 mo
n=185 n=93
.
.
.
.
. PSV 0.73±0.31 m/s EDV 0.19±0.09 m/s
PSV 0.75±0.27 m/s EDV 0.18±0.06 m/s
PSV 0.82±0.48 m/s EDV 0.22±0.13 m/s
0 0
1 (cerebellal)
1 (brain stem)
0
0 0 0
0 3 2
6 (CHF-2, Ca-2, PE-1,
urosepsis -1)
5 (CHF-2, Ca-2, MI-1)
2 (Ca-1, MI-1)
P Musialek @ VEITH 2018
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n=251
PARADIGM – Extend
0 . ipsilateral stroke
any stroke
stroke-related death
any death
in-stent velocities
MI or other non-cerebral VA
1-12 mo
12-24 mo
24-36 mo
n=185 n=93
.
.
.
.
. PSV 0.73±0.31 m/s EDV 0.19±0.09 m/s
PSV 0.75±0.27 m/s EDV 0.18±0.06 m/s
PSV 0.82±0.48 m/s EDV 0.22±0.13 m/s
0 0
1 (cerebellal)
1 (brain stem)
0
0 0 0
0 3 2
6 (CHF-2, Ca-2, PE-1,
urosepsis -1)
5 (CHF-2, Ca-2, MI-1)
2 (Ca-1, MI-1)
P Musialek @ VEITH 2018
Normal healing
No ISR signal
By 36 months . .
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@ 36 months Favourable Clinical Outcome
36-month data
s u s t a i n e d stroke prevention
P Musialek @ VEITH 2018
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P Musialek @ VEITH 2018
The Outcome Difference Between the MicroNet-Covered Stent
Vs. Conventional Carotid Stent(s)
is driven by HIGH-RISK
Plaques and Patients
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Flow reversal time 7min 10sec Intolerance in the last 80sec
(active aspiration still !! performed)
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Patient A/S, discharged home, unremarkable follow-up
Normal stent image
Normal velocities ECA patent P Musialek @ VEITH 2018
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P Musialek @ VEITH 2018
FACT #10
There is more than that…
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CGuard™ MicroNet Covered Stent:
ADDRESSING UNMET NEEDS IN OTHER VASCULAR BEDS
P Musialek @ VEITH 2018
Moving beyond routine CAS…
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
Thr
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
OPTIMAL procedural result Normal 6mo follow-up
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
LSA
(movie)
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
Procedural result
Normal 6mo follow-up
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018 Procedural result
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
Normal Result
@follow-up
CGuard™
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians and
P Musialek @ VEITH 2018
Procedural acute outcome
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Thrombus-containing/high-embolic risk lesions in iliacs or subclavians
P Musialek @ VEITH 2018
OPTIMAL 6mo result
Pt ready for fem-fem (NB. several prior attempts to recanalize LCIA had failed)
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Large-diameter SVG disease problem
P Musialek @ VEITH 2018
AK, 58y, NSTE Acute Myocardial Infarction
Thr
SVG RD 7.5 mm (!)
TIMI-2
Severely impared OM flow
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Large-diameter SVG disease problem
P Musialek @ VEITH 2018
AK, 58y, NSTE Acute Myocardial Infarction
Thr
SVG RD 7.5 mm (!)
TIMI-2
Severely impared OM flow
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Large-diameter SVG disease / NSTE-acute MI
P Musialek @ VEITH 2018
post PCI/direct stenting with overlapping MicroNet–covered CGuard™ stents
NB. absence of distal embolizm, normal OM flow, no further troponin rise
OPTIMAL acute result
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Large-diameter SVG disease treated with CGuards (angio @3mo)
P Musialek @ VEITH 2018
SVG
OM
cGuard™-reconstructed SVG
OM
overlapping CGuards
OPTIMAL result @ 3mo
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Large-diameter SVG disease treated with CGuards (CT-angio @6mo)
P Musialek @ VEITH 2018
OM
NOTE ostial placement precision feasibility
Ao
OPTIMAL result @ 6mo
CGuard™
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(V) Higly calcific disease (note: adequate radial force need)
P Musialek @ VEITH 2018
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(V) Higly calcific disease (note adequate radial force need)
P Musialek @ VEITH 2018
CGuard™
Acute Procedural
Result
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(V) Higly calcific disease (note: adequate radial force provided)
P Musialek @ VEITH 2018
CGuard™
OPTIMAL result @ 6mo
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Neo-Atherosclerosis In A Conventional LSA Stent: Treated With CGuard™ under IVUS
P Musialek @ VEITH 2018
LSA
CGuard™ for in-stent
Neoatherosclerosis
6 mo follow-up +
(movie)
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Conventional Carotid Stent Design Allows Atherosclerotic Plaque In-Growth (ie., Neo-Atherosclerosis)
Pt MK RICA
Precise 5.0x30mm (2005)
2014-2016 ”increasing in-stent restenosis” P Musialek @ VEITH 2018
2016
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Atherosclerotic Plaque Growth Into The Open-Cell Stent Lumen Treated with Neroprotected PTA Under IVUS – and CGuard™
P Musialek @ VEITH 2018
PTA No flow
(movie)
Aspiration ’Half-open’ Filter
Removal
![Page 70: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/70.jpg)
Atherosclerotic Plaque Growth Into The Open-Cell Stent Lumen Treated with Neroprotected PTA Under IVUS – and CGuard™
CGuard™ 8.0 x 40mm
(movie)
P Musialek @ VEITH 2018
2016
![Page 71: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/71.jpg)
CGuard™ For Symptomatic In-stent Neotherosclerosis: 2-year follow-up
P Musialek @ VEITH 2018
RICA
RECA
November 2018
CGuard™ for in-stent
Neo-atherosclerosis
2018 (24 months)
![Page 72: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/72.jpg)
Aneurysm/Dissection with recurrent symptoms
P Musialek @ VEITH 2018
(movie) (movie) (movie)
Immediate Post-Procedural Result
![Page 73: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/73.jpg)
P Musialek @ VEITH 2018
Aneurysm/Dissection with recurrent symptoms
Totally SEALED @ 24h
CGuard™
![Page 74: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/74.jpg)
P Musialek @ VEITH 2018
Aneurysm/Dissection with recurrent symptoms
Normal Follow-up @ 6 months
CGuard™
![Page 75: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/75.jpg)
P Musialek @ VEITH 2018
Aneurysm/Dissection with recurrent symptoms
Immediate SEALING
CGuard™
![Page 76: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/76.jpg)
Aneurysm/Dissection with recurrent symptoms
P Musialek @ VEITH 2018
Normal Result
@ 6 mo
( Patient Asympt.)
CGuard™
![Page 77: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/77.jpg)
Non-Healing Dissection with recurrent symptoms
P Musialek @ VEITH 2018
Immediately SEALED
Thr?
MoMa, IVUS
CGuard™
![Page 78: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/78.jpg)
P Musialek @ VEITH 2018
Non-Healing Dissection with recurrent symptoms
Normal 12 mo Follow-up Result
CGuard™
![Page 79: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/79.jpg)
Ostial CCA lesions (note adequate radial force and placement percision need)
P Musialek @ VEITH 2018
LCCA Retrograde Cannulation
from the neck
(to wire and predilate
the subtotal ostial LCCA;
NB. failed access from the arch)
Retrograde Cannula removed
following succesful wireing
from the arch after
ostial LCCA predilation
from the top
Lady 68 yo, retinal TIAs followed by retinal stroke while on OMT (mother to cathlab nurse)
LCCA
Ao Ao Ao
LCCA
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Ostial CCA lesions (note adequate radial force and placement percision)
P Musialek @ VEITH 2018
FILTER
(movie)
(movie)
![Page 81: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/81.jpg)
Ostial CCA lesions (note adequate radial force and placement percision)
P Musialek @ VEITH 2018
OPTIMAL angiographic + clinical + duplex result
@ 12mo
(and LECA patent)
Ao Ao Ao
cGuard™
2 overlapping
cGuards
![Page 82: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/82.jpg)
Acknowledgements
P Musialek @ VEITH 2018
R. Paweł Banyś Anna Borratyńska Mateusz Brózda Andrzej Brzychczy Władysław Dąbrowski Natalia Dłużniewska Tomasz Drążkiewicz Urszula Gancarczyk Paulina Judziało Marek Kazibudzki Klaudia Knap Artur Kozanecki Agata Leśniak-Sobelga
Adam Mazurek Marcin Misztal Zbigniew Moczulski Piotr Paluszek Łukasz Partyka Piotr Pieniążek Piotr Podolec Grażyna Stankiewicz Tomasz Tomaszewski Mariusz Trystuła Małgorzata Urbańczyk Piotr Wilkołek Agnieszka Zwolińska
![Page 83: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/83.jpg)
P Musialek @ VEITH 2018
![Page 84: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/84.jpg)
P Musialek @ VEITH 2018
![Page 85: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/85.jpg)
P Musialek @ VEITH 2018
![Page 86: Update On Results With The CGuard Covered Stent (InspireMD](https://reader031.vdocuments.us/reader031/viewer/2022012414/616e43433f16c3184870863e/html5/thumbnails/86.jpg)
CGuard™ EPS
Human 3D OCT, symptomatic lesion
P Musialek @ VEITH 2018
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CGuard™ embolic prevention system
P Musialek @ VEITH 2018
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TCT 2016 Featured Research P Musialek @ VEITH 2018 CGuard™ OCT
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2 0
1 8
Update On Results With The CGuard™ MicroNet Covered Stent (InspireMD) For CAS:
Does It Prevent Strokes: Does It Cause ISR Or Other Long-Term Problems:
Can It Have Value In Other Vascular Beds?
Piotr Musialek, MD DPhil
Jagiellonian University Dept. of Cardiac & Vascular Diseases John Paul II Hospital, Krakow, Poland