The Left Atrial Appendage Should it be Closed in every Open … A... · 2018. 12. 3. · The Left...

The Left Atrial Appendage – Should it be Closed in every Open Cardiac Surgical Case

Nirav C Patel MD FRCS CThProfessor – Zucker School of Medicine at Hofstra Northwell

Director of Robotic Cardiac Surgery – Northwell HealthVice Chairman –Cardiovascular and Thoracic Surgery

Lenox Hill Hospital – New York

Disclosures

• Founding Member HRT- Equity interest

• None regarding this presentation

Surgical LAAO – Overview

• Success and methods

• Role in stroke prevention

• Current trials

• Guidelines

STS/EACTS Latin America Cardiovascular Surgery Conference 20183

LAA exclusion - successful

• No spontaneous echo contrast

• No demonstrable flow on TEE

• Residual stump < 1cm

Endo-Cardial ligation during mitral surgery• 36% had spontaneous echo contrast

• 22% - thromboembolic event

• Suture ligation vs stapler

• 20% appendage tears

• Suture ligation- 45% successful

• Staple exclusion – 72% successful

• Learning curve of 4 cases success rate increased to 87%

• 2.6% pts had periprocedural stroke

Cleveland Clinic Retrospective TEE study

• 40% successful closure

• Excision>Suture Ligation>Staple exclusion

• If LAA is left intact suture and staple gradually cut through overtime

• Surgical excision – no thormbi in incomplete exclusion

Comparison - LAA elimination techniques

LAAO- surgical devices

• AtriClip• External clip

• Sustained compression

• tissue growth

• Tigerpaw• Easier to apply

• Recalled due to tears

AtriClip – Short term results

AtriClip- long term results

• 3.5+/-0.5 years

• Stable clip, no recurrence and no thrombi

AtriClip- Minimally invasive

AtriClip – Minimally invasive

LAAO- prevention of stroke in Afib

NOAC vs Warfarin

LAAO in pts with Afib

LAA closure in patients without AF?

• No prospective evidence

• Can we identify high risk pts

MAYO Clinic – LAAO analysis

LAA closure in patients without AF?

ATLAS - Study

• No documented history of Afib

• CHA2DS2-VASc > 2

• HASBLED >3

• AtriClip exclusion

• CVA and survival

• Healthcare resources

• 2000 pts through 40 sites

Guidelines

Conclusions

• No LAAO should not be routinely performed in all cases

• LAAO – should be done in Pts with afib

• AtriClip is most optimal device

• Intraop Echo confirmation is of paramount importance

THANK YOU

The Left Atrial Appendage Should it be Closed in every Open … A... · 2018. 12. 3. · The Left...

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