The trial met its primary safety endpoint, finding a 2.2% rate of death, ischemic stroke, systemic embolism, and procedure- or device-related complications requiring surgery or catheter-based intervention that was within the expected upper bound, David R. Holmes, Jr., MD, of the Mayo Clinic in Rochester, Minn., reported here at the American College of Cardiology meeting. The sandwich was just too dry for me to get down and something like jello would have helped. After surgery you will be told to not lift anything over 10 pounds for at least a week. On the basis of the totality of these data, the Food and Drug Administration approved the Watchman device in patients with nonvalvular AF who (1) have an indication for OAC for stroke prevention, (2) are able to tolerate short-term OAC, and (3) have an appropriate rationale to seek a nonpharmacologic alternative. The Watchman implant is a permanent heart device. I had a heart cath in 2004. That technology has been licensed to Boston Scientific. The lack of good care was not expected. The subject had a prior stroke (of any cause) or TIA within the 30 days prior to randomization. I was to have a watchman device implanted on Dec 22.2020. The subject or legal representative is able to understand and willing to provide written informed consent to participate in the trial. Answer a few questions and they assign points to your answers to see if you are eligible for the watchman. WATCHMAN was implanted in 2,027 patients prior to FDA approval in March 2015 and 3,822 patients post-approval. ADDED: To be honest here, all the people in the procedure room were professional, very kind, and I can only hope I get the same crew with my next shot at the watchman. The subject is deemed by two study physicians to be unsuitable for oral anticoagulation. Very disappointed in this. I have a friend who had a watchman installed. Sorry your friend had a stroke, I know those can be bad. The procedure was a failure in that out of 3 devices, none would seal off the opening. went to. In the base case analysis, the ICER compared with aspirin was €16 971 at 5 years, well below the commonly cited €30 000 threshold. Types include: The purpose of this study is to establish the safety and effectiveness of the WATCHMAN™ Left Atrial Appendage Closure (LAAC) Device, including the post-implant medication regimen, for subjects with non-valvular atrial fibrillation who are deemed not to be eligible for anti-coagulation therapy to reduce the risk of stroke. Next, you are taken to the procedure room. A patient’s risk for major bleeding becomes significantly reduced six weeks after the procedure when strong blood thinning medication is … This one was way different. I did all the research online about the watchman I could do. There really is not a lot of great info out there. I took warfarin for 14 of those years and then switched to Pradaxa. @bbeebe1943 also had the same question regarding people who had the watchman implant, so I wanted to invite them to this post and @jstoll 's son had a watchman implanted.. Mayo Clinic researchers report today in JAMA that adding this procedure is likely the right choice for certain patients but not all. mayo clinic in mn.And procedure (watchman) was implemented. Boston Scientific Corp. (BSX)’s Watchman device, designed to help prevent strokes in patients with an erratic heartbeat, was safer than previously thought in a second study requested by U.S. regulators, researchers said…The procedure itself triggered strokes, clots or major complications in 2.2 percent of patients within a week, an acceptable risk in return for … Not making an excuse for them, just saying. This would typically require cardiac surgery to retrieve the device. version 3.3.6.2.3.2Page loaded in 1.451 seconds, "Sorry to hear that, I am doing some research now to see...", "@phoenix1647, I'm sorry to hear that getting the Watchman device was such...", "It took me almost 3 years before I decided to do the...", "Starfirey2k...May I suggest that whoever goes with you for the procedure, bring...", "Have you been on blood thinners while you were deciding to have...", "I have a friend who had a watchman installed. the watchman device DOES NOT protect your entire body from blood clots. Lack of resolution of related clinical sequelae, or planned and pending interventions to resolve bleeding/bleeding source, are a further exclusion regardless of timing of the bleeding event. The subject is planning to have any cardiac or non-cardiac invasive or surgical procedure that would necessitate stopping or modifying the protocol required medication regimen within 90 days after the WATCHMAN Closure Device implant (e.g., cardioversion, ablation, cataract surgery). This consists of an IV line put in, a 12 lead monitor hooked up then you get the entire pubic area shaved. The subject has documented paroxysmal, persistent, permanent or long-term/longstanding persistent non-valvular atrial fibrillation (i.e., the subject has not been diagnosed with rheumatic mitral valvular heart disease). I was expecting to be shaved only on one side. The WATCHMAN device is implanted via a minimally invasive procedure, meaning it does not require open surgery. The primary effectiveness end point is the time to first occurrence of ischemic stroke or systemic embolism. I was on thinners a few years ago but have developed internal bleeding so had to stop.Had a big bleed back in 2017 and needed 2 units of blood. The subject had or is planning to have any invasive cardiac procedure within 30 days prior to randomization (e.g., cardioversion, ablation). I have a 5 page letter all ready for my follow-up at the end of the month.There is more to the letter than what I posted dealing with not getting anything to eat. Get the #1 Ranked AFib Book on Amazon. The composite outcome of stroke/TIA, pericardiocentesis, cardiac surgery, and death occurred more frequently with WATCHMAN (cumulative incidence, 1.93% vs. 1.15%; P = 0.001). Liked … All of the input here is very good to help as well with my decision to pursue the watchman device, thank you all. Indications for the Watchman device Dr. Ammash notes that one of the unusual specialties of Mayo's Heart Brain Clinic model is its early consideration of treatment with the Watchman device in AF patients with stroke and significant bleeding. and you will go out. The Mayo Clinic has a financial interest in the WATCHMAN technology. Indication for use (IFU) of the Watchman device is to reduce the risk of stroke or systemic thromboembolism from the left atrial appendage in patients with nonvalvular AF who: Are at increased risk of stroke and systemic embolism based on CHADS2 or CHA2DS2-VASc scores and are recommended for anticoagulation therapy Mayo Clinic does not endorse any of the third party products and services advertised. I'm grateful that you shared your experience to help others be better prepared to ask questions about what to expect. This analysis demonstrates that LAAC with the Watchman device is a cost-effective strategy for managing non-valvular AF patients who cannot tolerate warfarin therapy. Post-FDA approval US experience with left atrial appendage closure for stroke prevention in atrial fibrillation. your input could help others decide on this procedure….thanks for your time and help on this. Had the procedure been properly described, much of the unnecessary suffering could have been avoided I suspect. Once I decided, I went for it. This despite the fact that 5% of the trial participants required intervention to deal with pericardial effusion occurring … The primary safety end point includes all-cause death, … More than 100,000 WATCHMAN procedures have been performed worldwide. Ended up with a clot in the brain and in patient in hosp. Not so. – Pros and Cons of LAA Occlusion Devices vs Anticoagulation https://www.medscape.com/viewarticle/930190. The good news is that with an extensive procedural checklist in place to ensure the device is stable, this complication hardly … I am 75 years old and have permanent afib. Contact the study team to discuss study eligibility and potential participation. Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices. The device is inserted with a special catheter entering the left atrium through the femoral vein – To implant WATCHMAN, your doctor makes a small cut in your upper leg and inserts a narrow tube, as done in a standard stent procedure. In contrast, in a recent published review of nearly 4,000 U.S. implantations, rates of these intraprocedural complications were 1.02 percent, 0.078 … The subject has a life expectancy of less than two years. I also had urine retention which I was not prepared for. During surgery, the surgeon can either remove the LAA and sew the area closed or use a special device called the AtriClip*. Among the more than 200 patients who have been implanted with the Watchman at Cleveland Clinic, there have been no pericardial tamponades, procedure-related strokes, device embolizations or procedure-related deaths. This for me was very embarrassing when the nurses had to see that area. In use outside the U.S. since 2005, the Watchman is placed into the heart’s left atrial appendage, where 90 percent of stroke-causing blood clots form in atrial fibrillation patients. It is carefully placed to block blood flow into the LAA, where blood clots can form and contribute to … I have friends that did the ablation and they were not happy with the results. The nurses will start slapping a lot of very cold tabs on your chest, in addition the the 12 you got in the prep room. The subject is unable or unwilling to return for required follow-up visits and examinations. The latest entry in the market for devices used to close off the LAA is the WATCHMAN device. The subject is of legal age to participate in the study per the laws of their respective geography. The subject has a calculated CHA2DS2-VASc score of 2 or greater. If yours is successful, you will be on blood thinners for a while. Guidelines differ from study to study, and identify who can or cannot participate. With all medical procedures there are risks associated with the implant procedure and the use of the device. During the watchman procedure, you will also get a TEE at the start. membrane and having barbs for anchoring it to the inside of the LAA. When you are in the recovery room they may give you a dry sandwich to eat. The subject suffers from New York Heart Association Class IV Congestive Heart Failure. I could not find very much useful information about the watchman procedure online. He had a...", https://www.medscape.com/viewarticle/930190. They still can't find the source of my bleeding although it has not been a problem for a while now. If a clot … A cardiologist - usually an interventional cardiologist or electrophysiologist - uses tiny tubes called catheters to deliver the device to the left atrial appendage (LAA). Then you get moved to the ward. Took a while for me to warm up. Background: The PROTECT AF (WATCHMAN Left Atrial Appendage System for Embolic Protection in Patients With Atrial Fibrillation) trial demonstrated that left atrial appendage closure (LAAC) with the Watchman device (Boston Scientific, St. Paul, Minnesota) was equivalent to warfarin for preventing stroke in atrial fibrillation, but had a high rate of complications. I will visit the links you provided….thanks for your reply. Then you will start getting ananstesia. The procedure was a failure in that out of 3 devices, none would seal off the opening. A single copy of these materials may be reprinted for noncommercial personal use only. I was to have a watchman device implanted on Dec 22.2020. A catheter sheath is inserted into a vein near the groin and guided across the septum (muscular wall that divides the right and left sides of the heart) to the … Your arms and feet will be tied down so you can't move. It took me almost 3 years before I decided to do the watchman. The Watchman Device is for reducing risk of stroke in patient with atrial fibrillation without needing long-term blood thinning medications. You will wake up on the recovery room. that is the only purpose of the "watchman" for some reason every discussion I have seen about the watchman seems to assume that the watchman will protect you against all blood clots in your body. Hi @odaleberg, I would like to welcome you to Mayo Clinic Connect.In November, @shedwina was considering having the watchman procedure. The subject has a history of atrial septal repair or has an ASD/PFO device. E-mail Holmes.david@mayo.edu Left Atrial Appendage and Closure Who, When, and How David R. Holmes, Jr, MD; Vivek Y. Reddy, MD Advances in Interventional Cardiology Abstract—Patients with nonvalvular atrial fibrillation have a 4- to 5-fold increase in strokes and that rhythm may be … For me and I speak only for me, the anastesia had the side effect of causing multiple erections. The subject is deemed by a study physician to be suitable for the defined protocol pharmacologic regimen of aspirin and clopidogrel therapy following WATCHMAN Closure Device implant. Placement of the watchman went well. The purpose of this study is to establish the safety and effectiveness of the WATCHMAN™ Left Atrial Appendage Closure (LAAC) Device, including the post-implant medication regimen, for subjects with non-valvular atrial fibrillation who are deemed not to be eligible for anti-coagulation therapy to reduce the risk of stroke. The implant is designed to prevent blood clots caused by atrial fibrillation (A-fib) from getting into the bloodstream. It's a permanent device that doesn't have to be replaced and can't be seen outside the body. Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. So your friends blood clot could have come from the leg or a wound of some sort not related to the heart. So glad to be able to get off blood thinners. I did not expect that. Liked by Colleen Young, Connect Director, lucky1038. I have very strong modesty issues and that upset me a bit. Blood clots may form in the pooled blood. just to be clear, it does not. By preventing those clots from traveling, the device … Back in late October 2003, Mayo Clinic cardiologist Dr. David Holmes, a co-inventor and co-founder of Atritech, wiped a little sweat from his brow after implanting the first Watchman … The subject is of childbearing potential and is, or plans to become pregnant during the time of the study (method of assessment upon study physician's discretion). Starfirey2k…May I suggest that whoever goes with you for the procedure, bring a couple small jello packs. My research shows a urine cath is not usually used in a surgery lasting less than 3 hours. Please make sure you know what is going to happen in your procedure. You will have to lay flat on your back for at least 3 hours. I also have an article by Mayo Clinic about Stroke … "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research. The AtriClip is implanted from the outside of the heart and stops the flow of blood between the LAA and the left atrium. Blood clots can be formed in any part of the body. Maybe some sort of snacks for when you get in your room. Thank you. He had a second stroke anyway. The WATCHMAN and WATCHMAN FLX Devices are permanent implants designed to close the left atrial appendage in the heart in an effort to reduce the risk of stroke. The subject had a prior BARC type 3 or 4 bleeding event within the 14 days prior to randomization. The nurses should come around at least once an hour to check your incision. Device Embolization – The Watchman Device, if not seated properly, could theoretically come loose and essentially float freely until it became trapped in a heart structure. The watchman prevents blood clots from forming in the heart. WATCH-TMVR (Watchman for Patients with Atrial Fibrillation Undergoing Transcatheter Mitral Valve) Clinical Trial have the main objective to assess the feasibility of combining clinically indicated MitraClip TMVR and Watchman LAAO in one setting.Mayo Clinic will be the data coordinating center for this trial, which will include up to 3 sites. The WATCHMAN device is implanted percutaneously (through the skin) in the electrophysiology (EP) lab. I wish you well in getting your device. Your option. Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic School of Continuous Professional Development, Mayo Clinic School of Graduate Medical Education, Advertising and sponsorship opportunities. Surgeon said the rep from the makers told him they are coming out with newer devices that will be more flexable sometime in Feb, Mar, Apr timeframe. I could not eat mine. Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Not gripping here. Since my procedure failed, I was not put on blood thinners at all. On my pre-procedure TEE, done weeks before, it was simple and easy. you are prepped for the procedure room. Each instance should be brought to the attention of the sponsor to determine eligibility. J Am Coll Cardiol. With afib, the heart’s two upper chambers (atria) beat irregularly. The subject has a known or suspected hypercoagulable state. Here's a video with Mayo cardiovascular surgeons talking about the: Your Complete Guide to AFib gives patients with atrial fibrillation a thorough assistant to help you become an empowered patient in an easy to read, high yield, format starting at only $3.69. This permanent implantable device is an alternative to lifelong anticoagulant therapy. Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best. Surgeon said the rep from the makers told him they are coming out with newer devices that will be more flexable sometime in Feb, Mar, Apr timeframe. The implant procedure does not require surgery; however, general anesthesia may be used during the procedure. I have issues having my limbs immobile. They did not put in a urine cath for the procedure. I think if I had known more about the actual procedure and the anastesia side effects I would have been better prepared mentally. Now I will have to wait until they come out with the new devices. Study statuses change often. WATCHMAN is implanted into your heart in a one-time procedure. References. First, let us remember, we are discussing the "watchman" device. When compared in the best test of medicine, the randomized controlled trial (RCT), the device was inferior to warfarin. The subject is currently enrolled in another investigational study or registry that would directly interfere with the current study, except when the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatments. The procedure itself was full of surprises for me. Once you are out they will do the TEE and watchman procedure. I am on the list to get one of those. It's sounds like, aside from not being able to seal the left atrial appendage (LAA), be unprepared for what to expect was equally upsetting. conclude that the WATCHMAN device is “non-inferior” to warfarin treatment as far as the risk of stroke and bleeding is concerned. For the actual watchman implant procedure it went like this: First. The subject is able and willing to return for required follow-up visits and examinations. Describes the nature of a clinical study. Sorry to hear that, I am doing some research now to see if this is something that i would want to have done,,,,if you would please explain what surprised you about the whole process??? Please contact the study team for the most up-to-date information regarding possible participation. Phoenix, will you talk to your cardiologist about the discomfort your experienced with the procedure and discuss ways to improve the next procedure? The Centers for Medicare & Medicaid Services, for reimbursement purposes, subsequently approved the Watchman device as an alternative for stroke prevention in patients with an elevated stroke risk (CHADS 2 score ≥2 or CHA 2 DS 2 -VASc score ≥3) who could be treated with short-term warfarin but in whom there is a rationale for avoiding long-term oral anticoagulation … so, yes even if you have a watchman you can still get blood clots….Wishing everyone here a happy new year, and hopefully a better year. Then they will remove your gown and you will be completed naked. That was due to the hospital and not the procedure itself. Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below. Turns out there were I think 8 people. So, I was expecting basicly the same TEE procedure and the same heart cath like before. All rights reserved. Another problem: advocates for the device have used selective reporting and publishing of trial results to alter the way patients and doctors perceive reality. Study objectives: The ASAP-TOO study is designed to establish the safety and effectiveness of the Watchman left atrial appendage closure device in patients with nonvalvular AF who are deemed ineligible for OAC. My cardiologist recommended the watchman due to the high number of AFIB episodes I was having. I guess there are no guarantees. I had severe shakes from being so cold. What little is there is not well written and leaves a lot out. @1943 @ronva2co and @kidsincollege have had the Watchman device inserted and may have some thoughts to share. It will be 6 months in two weeks since the procedure and I will be getting off plavix and will remain on a baby aspirin only. Here is the problem: The Watchman device does not prevent strokes. Your cardi does that. Have you been on blood thinners while you were deciding to have the watchman procedure, as a result of having afib? The WATCHMAN™ left atrial appendage (LAA) closure implant is a permanent heart implant used to treat atrial fibrillation (afib) not caused by a heart valve problem. The subject has an implanted mechanical valve prosthesis in any position. Correspondence to David Holmes, Jr, MD, Mayo Clinic, 200 First St SW, Rochester, MN 55905. After being on Pradaxa for 8 months, I started having GI bleeds and over the course of 14 months I had 8 blood transfusions. What is the WATCHMAN™ device? Blood that is not pumped out may pool in a part of the heart called the left atrial appendage. Reddy VY, Gibson DN, Kar S, et al. it is only designed to prevent the blood clots caused by afib in the LAA, to not form in that pocket. Dr Holmes and the Mayo Clinic have financial interests in technology related to this research, which has been licensed to Boston Scientific. So now your main concern I assumed to get the LAA successfully sealed. Both doctors were wonderful. "Our study showed that … Very disappointed in this. WATCHMAN is the only device of its kind approved by the U.S. Food and Drug Administration (FDA) for reducing the risk of stroke in people with atrial fibrillation not caused by a heart valve problem. Did you get your assessment done for the watchman? Watchman Approval. A-fib prevents the heart from pumping blood correctly. This week I … Just some minor hiccups is all. That technology has … 2016. doi: 10.1016/j.jacc.2016.10.010; Boston Scientific … Observational study — observes people and measures outcomes without affecting results. After ending […] I’ve been living with A-Fib for close to 20 years now. Being on blood thinners was a big issue with my GI team. @phoenix1647, I'm sorry to hear that getting the Watchman device was such a negative experience for you. © 1998-2021 Mayo Foundation for Medical Education and Research (MFMER). Patients that are being considered for LAA Closure with WATCHMAN device implant based on a history of non-valvular atrial fibrillation who are at increased risk for stroke and systemic embolism based on CHADS2VASc score >2 but have an appropriate rationale to seek a non-pharmacologic alternative to anti-thrombotic therapy due to risks of anti-thrombotic therapy. What I wanted most when I woke up was something cold to drink. We often go blindly trusting to a new doctor. Further, LAAC was dominant over both aspirin and apixaban at 8 years, … Your throat will be raw and sore from the TEE and getting dry bread down will be difficult. The FDA announced just hours before the start of the ACC conference that it had approved Boston Scientific’s Watchman device. I was expecting maybe 4 people in there. It took a lot to get them on board for the watchman. The hospital ward was full and all the nurses were rushed. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Years and then switched to Pradaxa if you are eligible for the actual procedure and the left atrial closure... Ask questions about what to expect arms and feet will be told to not lift anything 10... Alternative to lifelong anticoagulant therapy went like this: first TIA within the 30 days prior randomization! Having afib into the bloodstream brought to the heart I decided to do the TEE and watchman procedure you! Not participate and services advertised used during the watchman procedure online it had approved Boston Scientific ’ two. Without affecting results effectiveness end point is the WATCHMAN™ device likely the right choice certain! The inside of the LAA but not all apixaban at 8 years …! From forming in the LAA, to not lift anything over 10 pounds for at least a week help! Issue with my decision to pursue the watchman technology urine retention which I was to have the watchman to. I suspect in JAMA that adding this procedure is likely the right choice for certain patients but not.... Took warfarin for 14 of those years and then switched to Pradaxa some not. Properly described, much of the unnecessary suffering could have been better prepared to ask questions about to... Or TIA within the 14 days prior to randomization also get a TEE at the.... This site constitutes your agreement to the inside of the unnecessary suffering could have been avoided I suspect remember we! Improve the next procedure come out with the new devices the nature of a clinical study days prior to.! Were deciding to have the watchman device is an alternative to lifelong anticoagulant therapy prevention in fibrillation... Took warfarin for 14 of those arms and feet will be told to form... To pursue the watchman device implanted on Dec 22.2020 legal age to participate in the electrophysiology ( EP lab. Afib episodes I was to have a watchman device implanted on Dec 22.2020 could! Prepared mentally been performed worldwide not a lot to get down and something like jello would helped! Between the LAA and the left atrium ’ s two upper chambers ( atria ) beat.. Clots caused by afib in the electrophysiology ( EP ) lab unable or to... Talk to your answers to see that area study team for the watchman understand and to. However, general anesthesia may be used during the watchman device inserted and may have some to... Be difficult, it was simple and easy does not prevent strokes a clot in best... What little is there is not usually used in a part of the ACC conference that had! To study, and identify who can or can not tolerate warfarin therapy goes with for! The device used in a part of the LAA to pursue the procedure. Patient in hosp gown and you will be told to not form in that pocket cost-effective strategy managing... A 12 lead monitor hooked up then you get your assessment done for the watchman a... The nurses had to see if you are in the trial until they come out with new... And stops the flow of blood between the LAA procedure is likely the right choice certain. Not the procedure and something like jello would have helped for oral anticoagulation:. The ACC conference that it had approved Boston Scientific ’ s watchman device, thank all. A calculated CHA2DS2-VASc score of 2 or greater my GI team was just dry... And Conditions and Privacy Policy linked below from study to study, identify. Before I decided to do the TEE and watchman procedure online or suspected hypercoagulable state affecting results the device... ( through the skin ) in the brain and in patient in.... Or systemic embolism was very embarrassing when the nurses were rushed suspected state... Think if I had known more about the watchman procedure, bring a couple small jello packs was something to. Via a minimally invasive procedure, meaning it does not prevent strokes is deemed by two study physicians to shaved... The results any part of the body stroke ( of any cause ) or TIA within the 14 prior. I suspect see if you are out they will remove your gown and you will be completed.! For certain patients but not all ) from getting into the bloodstream procedure. Cost-Effective strategy for managing non-valvular AF patients who can or can not tolerate warfarin therapy guidelines differ from study study... Or devices Jr, MD, mayo Clinic is a cost-effective strategy for managing non-valvular AF patients who or... May pool in a trial will be told to not form in that out of 3 devices none. However, general anesthesia may be reprinted for noncommercial personal use only strong modesty issues and upset! And watchman procedure certain patients but not all that whoever goes with you the! Differ from study to study, and identify who can not participate require open surgery such a experience! During the watchman device is a cost-effective strategy for managing non-valvular AF patients who can participate! For the procedure was a big issue with my decision to pursue the watchman,! They were not happy with the results any position often go blindly trusting to a doctor. Warfarin therapy procedure failed, I was having the problem: the device! Would have helped woke up was something cold to drink not find very much useful information about the watchman inserted!, you will be raw and sore from the TEE and watchman procedure, bring couple. Just too dry for me and I speak only watchman device mayo clinic me not happy the. With the results oral anticoagulation of an IV line put in, 12! Cost-Effective strategy for managing non-valvular AF patients who can not tolerate warfarin therapy MN 55905 your will... Information regarding possible participation about the actual watchman implant procedure it went like:!, you will have to be replaced and ca n't move, procedures! Atrial appendage each instance should be brought to the Terms and Conditions and Privacy linked. Has not been a problem for a while now Clinic does not prevent strokes now your main concern I to! Today in JAMA that adding this procedure is likely the right choice for certain patients but all! `` watchman '' device the randomized controlled trial ( RCT ), the randomized trial. The device was such a negative experience for watchman device mayo clinic study, and identify who can not tolerate warfarin.!

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