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.

Abbott FlexAbility Sensor Enabled Ablation Catheter FDA

Abbott gains new FDA approval for one catheter, CE mark approval for a second catheter

Both devices were approved for treating significant heart rhythm issues. 

Heart palpitations, chest pain among the long-lasting side effects of COVID-19, new research confirms

“Before we examined the data, I thought we would find an ample amount of the symptoms to be specifically associated with long COVID, but that wasn’t the case," one researcher said. 

Atrial Fibrillation and its location in the atrium detected using the Vektor arrhythmia detection software. COVID infection can cause the development of AFib, AF, in patients as a long-COVID symptom.

VIDEO: The link between COVID-19 and atrial fibrillation

Peter Libby, MD, a cardiovascular medicine specialist with Brigham and Women’s Hospital, discussed the cases of AFib being seen in long-COVID patients.

Thumbnail

Severe gum infections linked to heightened AFib risk

Researchers are still working to determine if gum disease leads to heart rhythm issues or if is actually the other way around. 

Extracorporeal CPR refractory out-of-hospital cardiac arrest

Extracorporeal CPR for out-of-hospital cardiac arrest: New research fails to provide answers

While a previous study had found that extracorporeal CPR outperformed conventional CPR among patients with out-of-hospital cardiac arrest, a newer analysis suggests the two treatment options result in similar outcomes. 

An example if an implantable cardioverter defibrillator (ICD and its leads connected to the heart. As the leads or deveice wears out, there are recommendations to remove the leads and put in new ones. Image courtesy of RSNA

Infection, heart failure the most common reasons for early mortality after transvenous lead removal

Early mortality specifically related to complications during the TLR procedure was quite rare. 

Thumbnail

Elevated uric acid levels linked to new-onset AFib

According to new data published in the Journal of the American Heart Association, atrial fibrillation can be added to the list of cardiovascular conditions associated with above-average uric acid levels. 

Stroke patients with AFib face a higher mortality risk after thrombectomy

A comparative meta-analysis found similar procedural outcomes, but higher 90-day mortality—partially attributable to a higher rate of comorbidities.

Around the web

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.

Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.