Dr. Lucas Boersma, MD/PhD/FESC St. Antonius Hospital, Nieuwegein, The Netherlands B. Schmidt Cardiology Centre Bethanien, Frankfurt Am Main, Germany T. Betts John Radcliffe Hospital, Oxford, United Kingdom E. Teiger Hospital Henri Modor, Creteil, France C. Tamburino Ferrarotto Hospital, Catania, Italy I. Atmowihardjo Vivantes Klinikum am Urban, Berlin, Germany S. Kische Vivantes Klinikum im Friedrichshain, Berlin, Germany E. Pokushalov State Res Inst of Circ Path. Novosibirsk, Russian Federation H. Sievert CardioVascular Center Frankfurt, Frankfurt Am Main, Germany M. W. Bergmann Cardiologicum Hamburg, Hamburg, Germany Implant Success and Safety of Left Atrial Appendage Closure with the WATCHMAN device: peri-procedural outcomes from the EWOLUTION Registry
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Dr. Lucas Boersma, MD/PhD/FESCSt. Antonius Hospital, Nieuwegein, The Netherlands
B. Schmidt Cardiology Centre Bethanien, Frankfurt Am Main, GermanyT. Betts John Radcliffe Hospital, Oxford, United KingdomE. Teiger Hospital Henri Modor, Creteil, FranceC. Tamburino Ferrarotto Hospital, Catania, ItalyI. Atmowihardjo Vivantes Klinikum am Urban, Berlin, GermanyS. Kische Vivantes Klinikum im Friedrichshain, Berlin, GermanyE. Pokushalov State Res Inst of Circ Path. Novosibirsk, Russian FederationH. Sievert CardioVascular Center Frankfurt, Frankfurt Am Main, GermanyM. W. Bergmann Cardiologicum Hamburg, Hamburg, Germany
Implant Success and Safety of Left Atrial Appendage Closure with the WATCHMAN device: peri-procedural outcomes from the EWOLUTION Registry
LAA closure for stroke prevention – PROTECT AF
WATCHMAN superior over VKA during long-term FU
Reddy, et al. JAMA 2014
Death, Stroke, Embolism
Registry on WATCHMAN Outcomes in Real-Life Utilization: EWOLUTION
EMEA WATCHMAN Registry
Study Objective: Collect real-world WATCHMAN LAAO experience outside of selected populations in prior RCT
Study Design: Prospective, single-arm, multi-center registry of the Watchman LAA Closure Technology
Primary Endpoint: Primary analysis includes procedural success and safety, incidence of stroke, bleeding, and death after 2 yr of FUInvestigator and Medical Safety Group for adjudication
Patient Population: >1000 patients
Number of Sites: 47 throughout Europe, Russia and Middle East
Enrollment: Started October 2013 - Completed May 2015
Follow-up:Standard practice at participating centers• Normally 1-3 months post-procedure• Annually thereafter for a total of 2 years
Inclusion criteria:1. Eligible for WATCHMAN LAAC per international/local guidelines and at
physicians discretion;2. willing and capable of providing informed consent, participating in all testing
associated with this clinical investigation at an approved clinical investigational center;
3. 18 years or above, or of legal age to give informed consent specific to state and national law;
Exclusion criteria:1. Current enrollment in another investigational study or registry that would directly
interfere with the current study;2. Women of childbearing potential who are, or plan to become, pregnant during the
time of the study;3. The subject is unable or not willing to complete follow-up visits and examination
for the duration of the study.
Centers were encouraged to enrol consecutive patients to represent real life practice and avoid selection bias
EWOLUTION - Study population
EWOLUTION - Flow ChartInformed consent obtained
LAA criteria met?
Implant of WATCHMAN*** subject is enrolled ***
Reassess per physician’s discretion
NOYES
Device implantedDevice not implanted
Follow-up according to center’s practiceWithdrawal (Attempt)
reimplant
Withdrawal (Intent)
Baseline patient characteristics - 1Characteristic All Pts (N=1021)Not eligible for OAC 61.8%
Age at time of consent (years) 73.4 ± 8.9 (range 39, 94)
Age ≥75 50.8%Female gender 40.1%Congestive Heart Failure 34.2%History of Hypertension 86.3%Diabetes 29.6%Vascular Disease 41.8%Abnormal Renal Function 15.6%Abnormal Liver Function 4.2%
Baseline patient characteristics - 2Characteristic All Pts (N=1021)History of TIA 10.7%History of Ischemic Stroke 19.7%Previous Hemorrhagic Stroke 15.0%Prior Major or Predisposition Bleeding 38.7%Labile INRs 17.0%Concomitant Use of Drugs 27.8%Alcohol Abuse 4.2%CHADS2 2.8 ± 1.3CHA2DS2-VASC 4.5 ± 1.6HAS-BLED 2.3 ± 1.2
CharacteristicPROTECT AF CAP PREVAIL CAP2 EWOLUTION
Vascular damage at puncture site 5 -Pericardial Effusion 3 2Cardiac Tamponade 2 -Strokes 1 2Suspected TIA - 2Pulmonary Embolism - 1Air Embolism 3 -Device Embolization 2 -Miscellaneous 8 28
Population divided by CHADS2≥3, CHA2DS2-VASc ≥5, HAS-BLED≥3, OAT eligibility, OAT after implant
• Higher 30-day SAE rate if:
• Higher 30-day Bleeding rate if:
30-Day SAE rate – Subgroup analysis
Composite of vascular complications includes cardiac perforation, pericardial effusion with tamponade, ischemic stroke, device embolization, and other vascular complications1
All Prior WATCHMAN studies: 7-Day Procedure/Device Related SAEs
8.7%
4.1% 4.2%
Kaplan-MeierSAE rate
2.8%
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
% o
f Pat
ient
s
PROTECT AF CAP PREVAIL EWOLUTION
n=39
n=23 n=12
1Includes observed PE not necessitating intervention, AV fistula, major bleeding requiring transfusion, pseudoaneurysm, hematoma and groin bleeding
PROTECT AF/CAP: Reddy et al. Circulation 2011PREVAIL: Holmes et al. JACC 2014
n=26
The EWOLUTION real-world prospective registry:• Shows the highest LAA closure success rate of all
WATCHMAN studies so far• With the lowest peri-procedural risk, even in multi-
morbid patients, with high stroke and bleeding risk, and 62% unsuitable for OAT
- OAT ineligible pts had lower SAE rate- HASBLED ≥3 pts had higher bleeding rate
• Improvement in implantation techniques mayfurther boost the net clinical benefit of LAAC during long-term follow up