Cardiac Resynchronization Therapy Devices (CRT)

Cardiac Resynchronization Therapy Devices (CRT) are cardiac electrophysiology (EP) systems that include a small electronic device that is surgically implanted into a pocket of skin to help both ventricles contract together. They are also called biventricular pacemakers. These systems can be used for pacing only, or can include a built-in defibrillator.

A physician explaining an implantable cardioverter defibrillator (ICD) to a patient. Image courtesy of Biotronik.

A physician explaining an implantable cardioverter defibrillator (ICD) to a patient. Image courtesy of Biotronik.

Feature | Implantable Cardioverter Defibrillator (ICD) | May 24, 2019 | Dave Fornell, Editor
This is a brief overview of updates on implantable cardioverter defibrillators (ICD), including new technology...
HRS 2019 late breaking trials, late breaking presentations for the biggest news in electrophysiology (EP). #HRS #HRS2019 #HRS19
Feature | HRS | May 15, 2019 | Dave Fornell, Editor
May 15, 2019 — The Heart Rhythm Society (HRS) had 21 late-breaking study presentations at the 2019 Heart Rhythm...
A new infection risk scoring system has been developed based on data from the large PADIT Trial.[1] The new scoring system was presented as a follow up to that study during a late-breaking session at Heart Rhythm 2019, the Heart Rhythm Society's 40th Annual Scientific Sessions.

Figure 1: The PADIT infection risk score ranging from 0 to 14 points classified patients into three risk groups, low (0-4), intermediate (5-6) and high (≥7). The risk groups had rates of hospitalization for infection of 0.51%, 1.42% and 3.41%, respectively 

News | EP Lab | May 15, 2019
May 15, 2019 — A new infection risk scoring system has been developed based on data from the large PADIT Trial.[1] The...
Studies Find Race and Gender Disparities in Implantable Heart Devices
News | EP Lab | May 15, 2019
May 15, 2019 - Three new studies show that patients who are medically indicated for implantable heart devices,...
His Corrective Pacing Effective as an Initial Strategy for Heart Failure Cardiac Resynchronization CRT therapy vs. biventricular pacing (BiV) as a first-line strategy. #HRS #HRS19 #HRS2019
News | Cardiac Resynchronization Therapy Devices (CRT) | May 15, 2019 | Dave Fornell, Editor
May 15, 2019 — A pilot trial has shown His pacing in cardiac resynchronization therapy (CRT) has been shown to...
News | EP Lab | May 13, 2019
May 13, 2019 – Results from a new survey are the first to report a large discrepancy in patient’s knowledge of their...
FDA Warns of Premature Battery Depletion in Some Medtronic Pacemakers
News | Pacemakers | May 07, 2019 | Dave Fornell, Editor
May 7, 2019 — The U.S. Food and Drug Administration (FDA) issued a safety communication to alert healthcare providers...
Biotronik Launches Acticor DX and CRT-DX Devices in U.S.
News | Cardiac Resynchronization Therapy Devices (CRT) | April 29, 2019
April 29, 2019 — Biotronik announced the full commercial launch of the Acticor device family, including Acticor DX and...
Biotronik Launches Acticor and Rivacor ICD and CRT-D Devices in Europe
News | Cardiac Resynchronization Therapy Devices (CRT) | April 18, 2019
April 18, 2019 – Biotronik announced the European market release of what it calls the world’s smallest implantable...
Concerto CRT-D and Virtuoso ICD implantable cardiac devices are among several Medtronic electrophysiology devices included in a safety alert because of their lack of cybersecurity measures to avoid hacking, according to the FDA.

Concerto CRT-D and Virtuoso ICD implantable cardiac devices are among several Medtronic electrophysiology devices included in a safety alert because of their lack of cybersecurity measures to avoid hacking, according to the FDA.

Feature | EP Lab | March 22, 2019
March 22, 2019 — The U.S. Food and Drug Administration (FDA) issued a safety communication to alert healthcare...
FDA Approves 3T Acticor and Rivacor Tachycardia Devices from Biotronik
Technology | Cardiac Resynchronization Therapy Devices (CRT) | March 15, 2019
March 15, 2019 – Biotronik announced U.S. Food and Drug Administration (FDA) approval of the Acticor and Rivacor high-...
Videos | EP Lab | February 27, 2019
This is a virtual heart with the same electrophysiology characteristics as the real patient being developed to help...
Seth Worley, M.D., senior consultant, section of cardiac electrophysiology, MedStar Heart and Vascular Institute, developed tools and techniques to optimize transvenous left ventricular (LV) lead implantation, including the I-CRT approach. Here he holds the tools that he personally developed for left ventricular lead implantation to treat heart failure. Photo courtesy of MedStar Heart and Vascular Institute at MedStar Washington Hospital Center.

Seth Worley, M.D., senior consultant, section of cardiac electrophysiology, MedStar Heart and Vascular Institute, developed tools and techniques to optimize transvenous left ventricular (LV) lead implantation, including the I-CRT approach. Here he holds the tools that he personally developed for left ventricular lead implantation to treat heart failure. Photo courtesy of MedStar Heart and Vascular Institute at MedStar Washington Hospital Center.

Feature | EP Lab | January 21, 2019 | Matthew S. McKillop, M.D., FACC, FHRS, and Seth J. Worley, M.D.
Interventional cardiac resynchronization therapy (I-CRT) describes the repurposing of a set of tools and techniques...
An implanted ICD showing its three venous leads. These multiple CRT leads can cause issues when they need to be replaced and are abandoned with new leads put over them in the SVC, which may require lead extraction.

An implanted ICD showing its three leads in the venous system. 

Feature | EP Lab | January 13, 2019 | Dave Fornell, Editor
To extract or abandon broken or infected implantable, venous electrophysiology (EP) device leads has been a debate for...
Medtronic AdaptivCRT Feature Associated with Improved Heart Failure Patient Survival
News | Cardiac Resynchronization Therapy Devices (CRT) | May 22, 2018
May 22, 2018 — Medtronic plc announced study results showing its AdaptivCRT algorithm is associated with improved...