{"id":75815,"date":"2024-05-14T09:46:44","date_gmt":"2024-05-14T15:46:44","guid":{"rendered":"https:\/\/www.uchealth.org\/today\/?p=75815"},"modified":"2024-07-29T17:53:02","modified_gmt":"2024-07-29T23:53:02","slug":"colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success","status":"publish","type":"post","link":"https:\/\/www.uchealth.org\/today\/colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success\/","title":{"rendered":"Look ma \u2013 no wires! Colorado\u2019s first commercial dual-chamber leadless pacemaker implant a success"},"content":{"rendered":"
<\/div>
\"Richard
Richard Bloomfield is looking forward to getting back up onto the trails near his home in Gypsum. In April, Broomfield received the first commercial dual-chamber leadless pacemaker ever implanted in the state of Colorado. Photo by Brayden Bloomfield for UCHealth.<\/figcaption><\/figure>\n

On April 1, Richard Bloomfield, 70, of Gypsum, Colorado, received the first commercial dual-chamber leadless pacemaker ever implanted in the state of Colorado. The minimally invasive procedure involving Abbott\u2019s Aveir DR<\/a> devices \u2013 two shiny, quarter-inch-wide cylinders less than an inch-and-a-half long \u2013 now steady the beat of a heart that wasn\u2019t originally his.<\/p>\n

University of Colorado School of Medicine cardiac electrophysiologist Dr. Matthew Zipse<\/a> performed the procedure at UCHealth University of Colorado Hospital<\/a> on the Anschutz Medical Campus<\/a>. Zipse snaked a catheter via Bloomfield\u2019s femoral vein near the groin up and into the right ventricle, screwing the corkscrew tip of one Aveir cylinder into the ventricular wall. He then did the same with a slightly smaller pacemaking cylinder in the right atrium above it. The procedure<\/a> took about two hours; Bloomfield was back home the next day.<\/p>\n

The two Aveir cylinders now spend most of their time in standby mode. When they detect an irregular or delayed heartbeat, they do what pacemakers do: deliver tiny zaps of electricity to nudge the pump into proper behavior. What\u2019s unique here is that the cylinders work in synchrony<\/a> because they can talk to each other by using the bloodstream and heart tissues as conductors to transmit a sort of morse code back and forth (doing so takes far less battery power than, say, sending and receiving radiofrequency waves).<\/p>\n

\"Abbott\u2019s
Abbott\u2019s Aveir DR duel-chamber leadless pacemaker system with a AAA battery for size comparison. The shorter Aveir AR paces the atrium, the longer Aveir VR the ventricle. They synchronize their actions via a proprietary, low-power communications protocol. Image courtesy of Abbott.<\/figcaption><\/figure>\n

Zipse has been implanting leadless pacemakers since 2016, when the U.S. Food and Drug Administration approved Medtronic\u2019s Micra<\/a> device, so using a catheter to implant a leadless pacemaker was familiar to him. The Aveir DR won FDA approval in June 2023. What\u2019s new with it, Zipse says, is working with patients on the pros and cons of dual-chamber leadless versus traditional transvenous pacemakers with leads \u2013 wires \u2013 and then, during implantation for which he did specialized training, coming up with the precise Aveir implantation geometries to maximize pacing effectiveness while minimizing battery demand.<\/p>\n

A litany of health emergencies<\/strong><\/h2>\n

With Bloomfield, the benefits of going leadless were clear. Despite looking more youthful than his years, he has run a gamut of health issues, the most profound of them having involved a maximally invasive remedy. He suffered four heart attacks from 2006 to 2013, after which point his scarred heart was failing so quickly that it took a 2014 transplant to save him.<\/p>\n

The heart of a 22-year-old donor halted the cardiac issues, but prostate cancer emerged in 2015, its treatment limited to radiation given the risks of chemotherapy so soon after transplant. In 2016, Bloomfield fought off organ rejection and cytomegalovirus<\/a> (CMV), which involved a month of intravenous antivirals.<\/p>\n

In March 2020, the electrical, heating, and cooling contractor then became the first serious COVID-19 case treated at Valley View Hospital in Glenwood Springs. He ended up on a ventilator at University of Colorado Hospital, narrowly surviving. Then came a 2021 brain hemorrhage at the Gypsum Costco after Bloomfield briefly blacked out and fell hard on the tile. He recovered from all that fully, only to have his new heart start to flutter (atrial fibrillation and ventricular tachycardia) and, more alarmingly, take periodic four-second breaks starting in late 2023.<\/p>\n

\"Aveir
Aveir DR dual-chamber leadless pacemakers have Richard Bloomfield back on his bike after some scary heart-rhythm problems. Photo by Brayden Bloomfield for UCHealth.<\/figcaption><\/figure>\n

\u201cI was concerned, you know? What if I didn\u2019t wake up in the morning because it just decided not to restart?\u201d Bloomfield said.<\/p>\n

Advantages of leadless pacemakers<\/strong><\/h2>\n

Bloomfield needed a pacemaker and given the origins of his heat-rhythm issues, a dual-chamber solution was best (many arrhythmias can be solved with single-chamber options). Despite his medical history, one pressing reason to go leadless rested on Bloomfield having had two implanted transvenous defibrillators over the course of nine years prior to his heart transplant. Like transvenous pacemakers, defibrillators thread leads from a battery and control box implanted in the upper chest. The leads string through a subclavian vein and the superior vena cava and then into the heart.<\/p>\n

But the leads can cause the veins to narrow, and that happened with Bloomfield, Zipse says. Implanting another transvenous pacemaker risked them getting blocked entirely, requiring a balloon stent procedure to open the veins back up. Add to that the risk of infection, which is higher with transvenous pacemakers \u2013 and higher yet given the immunosuppressive drugs Bloomfield has taken since his heart transplant. The dual-chamber Aveir presented the best solution, UCHealth cardiac electrophysiology nurse practitioner Emily Pascual and Zipse suggested to Bloomfield, and the patient agreed.<\/p>\n

\u201cWe know the device works, and he was up for being on the front lines of a really compelling and paradigm-shifting technology,\u201d Zipse said.<\/p>\n

Depending on how often the devices must engage due to an irregular heartbeat they detect, Bloomfield can expect eight or more years of battery life from his leadless pacing system, Zipse says. Should one battery drain faster than the other, they\u2019ll have to decide whether to change out one or both devices in another catheter-based procedure. It will be straightforward but will be more involved than the 30-minute replacement of a traditional transvenous pacemaker, whose batteries typically last more than a decade, Zipse says.<\/p>\n

The future of pacemakers<\/strong><\/h2>\n

Zipse says transvenous pacemakers aren\u2019t going away anytime soon, but that leadless technology has real advantages. He envisions wireless charging or perhaps even internal charging that harnesses kinetic energy from heartbeats vastly improving battery life as the technology matures.<\/p>\n

\u201cThe leads themselves are the Achilles heel of pacing and defibrillator systems, so I think the future of pacing most likely will be leadless, even if leadless options are not appropriate for everyone currently,\u201d Zipse said.<\/p>\n

By late April, he had implanted four more Aveir DR device sets, with more on tap, he says.<\/p>\n

For Bloomfield, the disconcerting breaks his heart was taking, as well as other arrythmias, have ceased. He and wife Karla plan on being out hiking and biking when the snow melts. As the father of six, grandfather of eight, and great-grandfather of one winds down his contractor work, the devout Jehovah\u2019s Witness has continued to keep busy volunteering at least 50 hours a month teaching the Bible from Gypsum to East Vail.<\/p>\n

Despite his health challenges, Bloomfield says he lives by the maxim that \u201cThere is more happiness in giving then there is in receiving,\u201d as he put it.<\/p>\n

He\u2019s grateful for his care team, even if he\u2019s a tough grader.<\/p>\n

\u201cIt\u2019s always been the best \u2013 you know, on a scale of one to ten, like a nine, because nobody\u2019s perfect,\u201d Bloomfield said. \u201cAnd the electrophysiology team<\/a>? They\u2019re like a nine-point-nine.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

On April 1, Richard Bloomfield, 70, of Gypsum, Colorado, received the first commercial dual-chamber leadless pacemaker ever implanted in the state of Colorado. The minimally invasive procedure involving Abbott\u2019s Aveir DR devices \u2013 two shiny, quarter-inch-wide cylinders less than an inch-and-a-half long \u2013 now steady the beat of a heart that wasn\u2019t originally his. University […]<\/p>\n","protected":false},"author":23,"featured_media":75821,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[5],"tags":[8760,3512,3300],"class_list":["post-75815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovative-care","tag-cardiac-electrophysiology","tag-heart-and-vascular-care-cardiovascular","tag-heart-surgery-treatments"],"acf":[],"yoast_head":"\nColorado\u2019s first dual-chamber leadless pacemaker implant a success - UCHealth Today<\/title>\n<meta name=\"description\" content=\"Richard Bloomfield received the first commercial dual-chamber leadless pacemaker, Abbott's Aveir DR device, implanted in Colorado.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uchealth.org\/today\/colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Look ma \u2013 no wires! Colorado\u2019s first commercial dual-chamber leadless pacemaker implant a success\" \/>\n<meta property=\"og:description\" content=\"Richard Bloomfield received the first commercial dual-chamber leadless pacemaker, Abbott's Aveir DR device, implanted in Colorado.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uchealth.org\/today\/colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success\/\" \/>\n<meta property=\"og:site_name\" content=\"UCHealth Today\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/uchealthorg\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-14T15:46:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-29T23:53:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2024\/05\/10140924\/Richard-Bloomfield-bike-edsized.jpg\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Todd Neff, for UCHealth\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@uchealth\" \/>\n<meta name=\"twitter:site\" content=\"@uchealth\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Todd Neff, for UCHealth\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.uchealth.org\\\/today\\\/colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.uchealth.org\\\/today\\\/colorados-first-commercial-dual-chamber-leadless-pacemaker-implant-a-success\\\/\"},\"author\":{\"name\":\"Todd Neff, for UCHealth\",\"@id\":\"https:\\\/\\\/www.uchealth.org\\\/today\\\/#\\\/schema\\\/person\\\/da7733ff5562e48e55c027d111ee5911\"},\"headline\":\"Look ma \u2013 no wires! 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Colorado\u2019s first commercial dual-chamber leadless pacemaker implant a success"}]},{"@type":"WebSite","@id":"https:\/\/www.uchealth.org\/today\/#website","url":"https:\/\/www.uchealth.org\/today\/","name":"UCHealth Today","description":"UCHealth Today","publisher":{"@id":"https:\/\/www.uchealth.org\/today\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.uchealth.org\/today\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.uchealth.org\/today\/#organization","name":"UCHealth","url":"https:\/\/www.uchealth.org\/today\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.uchealth.org\/today\/#\/schema\/logo\/image\/","url":"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/04\/24135149\/UCHealth-square-logo-1000x1000-1.jpg","contentUrl":"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/04\/24135149\/UCHealth-square-logo-1000x1000-1.jpg","width":1000,"height":1000,"caption":"UCHealth"},"image":{"@id":"https:\/\/www.uchealth.org\/today\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/uchealthorg\/","https:\/\/x.com\/uchealth","https:\/\/www.instagram.com\/uchealth\/","https:\/\/www.linkedin.com\/school\/14839\/","https:\/\/www.pinterest.com\/uchealthorg\/","https:\/\/www.youtube.com\/channel\/UC41SJI79yjZIe96OajzN22g"]},{"@type":"Person","@id":"https:\/\/www.uchealth.org\/today\/#\/schema\/person\/da7733ff5562e48e55c027d111ee5911","name":"Todd Neff, for UCHealth","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/ba17a8f1358d39c104ff6cb59da7fe21b9bfc792948447c3ac964e93b37aa49f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/ba17a8f1358d39c104ff6cb59da7fe21b9bfc792948447c3ac964e93b37aa49f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ba17a8f1358d39c104ff6cb59da7fe21b9bfc792948447c3ac964e93b37aa49f?s=96&d=mm&r=g","caption":"Todd Neff, for UCHealth"},"description":"Todd Neff has written hundreds of stories for University of Colorado Hospital and UCHealth. He covered science and the environment for the Daily Camera in Boulder, Colorado, and has taught narrative nonfiction at the University of Colorado, where he was a Ted Scripps Fellowship recipient in Environmental Journalism. He is author of \u201cA Beard Cut Short,\u201d a biography of a remarkable professor; \u201cThe Laser That\u2019s Changing the World,\u201d a history of lidar; and \u201cFrom Jars to the Stars,\u201d a history of Ball Aerospace.","url":"https:\/\/www.uchealth.org\/today\/author\/tneff\/"}]}},"coauthors":[{"id":23,"name":"Todd Neff","link":"https:\/\/www.uchealth.org\/today\/author\/tneff\/"}],"_links":{"self":[{"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/posts\/75815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/comments?post=75815"}],"version-history":[{"count":10,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/posts\/75815\/revisions"}],"predecessor-version":[{"id":80509,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/posts\/75815\/revisions\/80509"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/media\/75821"}],"wp:attachment":[{"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/media?parent=75815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/categories?post=75815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.uchealth.org\/today\/wp-json\/wp\/v2\/tags?post=75815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}