Heart Rhythm

Hearts should have normal rhythm to their beats, but when these beats are out of synch, it causes inefficient pumping of blood. Irregular heart arrhythmias occur when the electrical signals that coordinate the heart's beats do not work properly. This can cause beats that are too fast (tachycardia), or too slow (bradycardia). Tachycardias include atrial fibrillation (AFib), supraventricular tachycardia, ventricular fibrillation, and ventricular tachycardia (VT). Bradycardias include sick sinus syndrome and conduction block. Electrophysiology arrhythmia treatments include medications, life style changes, and the EP lab interventions of catheter ablation, and implantable pacemakers or defibrillators.

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Cardiac resynchronization therapy with a defibrillator (CRT-D) can be used to significantly improve mortality and hospitalization rates among older heart failure patients. CRT-D illustration courtesy of Boston Scientific.

CRT-D associated with major improvements among older HFrEF patients

The study's authors said CRT use among older patients represents a "major gap in knowledge." 

March 3, 2022
The Vektor Medical vMap system takes standard 12-lead ECGs and converts them into detailed electro anatomical maps for us in catheter ablation procedures.

Electrophysiologists debut new technology that builds interactive cardiac maps out of 12-lead ECGs

The solution, which gained FDA clearance in November 2021, is now being used by specialists at the University of California San Diego Health.

February 18, 2022
The FDA has cleared Medtronic's Freezor and Freezor Xtra cardiac cryoablation catheters for the treatment of pediatric atrioventricular nodal reentrant tachycardia (AVNRT).

FDA expands two Medtronic cardiac cryoablation catheters for AVNRT

The two single-use devices are now approved for the treatment of pediatric AVNRT.

February 18, 2022
The LDL-lowering medication inclisiran (Leqvio) was recently cleared by the FDA. It used only two doses per year. It was included it the Cleveland Clinic annual list of the top 10 medical innovations expected to make a big impact on patient care in 2022.

4 new medications and technologies that could transform cardiology in 2022

The FDA has already approved one of the medications, with a decision on another expected by the end of April. 

February 18, 2022
A new artificial intelligence tool can detect heart disease on cardiovascular MRI scans in seconds with equal or superior precision as clinicians. 

Cardiac MRI a powerful tool for predicting sudden cardiac death, arrhythmia after CIED implantation

The study's authors suspect their findings could improve patient selection for CIEDs. 

February 17, 2022
The Abbott Aveir DR dual-chamber leadless pacemaker recently had its first human implant occur in the Aveir DR i2i study pivotal trial.

First implant of dual-chamber leadless pacemaker completed in Abbott’s Aveir DR i2i pivotal trial

The investigational dual-chamber pacemaker is designed to provide synchronous, beat-by-beat pacing of the right atrium and right ventricle of the heart.

February 8, 2022
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Holter monitor for low-risk patients gains FDA clearance

The device includes an adjustable design that can be updated as new features are finalized.  

January 24, 2022

Cardiac dysfunction, arrhythmias common among recovered COVID-19 patients

Monitoring the heart rhythm of patients who have fully recovered from COVID-19 might provide significant value, researchers wrote. 

January 20, 2022
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