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.

Thumbnail

Lifetime risk of sudden cardiac death ‘significantly higher’ in blacks than whites

The lifetime cumulative risk of sudden cardiac death (SCD) is much higher in black patients than in whites, according to an analysis of the Atherosclerosis Risk in Communities Study published in Circulation Feb. 4.

Thumbnail

Dime-sized innovation harnesses heart’s energy to power implantable devices

Researchers from the Thayer School of Engineering at Dartmouth College have developed a dime-sized innovation they claim converts the heart’s energy into electricity to power implantable devices like pacemakers and defibrillators, potentially saving cardiovascular patients the time, money and stress of repeat surgery.

Thumbnail

Older patients at increased risk for AFib during dobutamine stress echo

Atrial fibrillation (AF) is rare during dobutamine stress echocardiography (DSE), a routine exam for assessing coronary ischemia, but elderly patients and those with a history of paroxysmal AF are at an increased risk for arrhythmia during the test, a team of researchers from Boulogne, France, reported.

Thumbnail

How trial results, guidelines affect the way physicians program CIEDs

A Journal of the American Heart Association study focused on the programming safety of cardiac implantable electronic devices (CIEDs) suggests the publication of clinically meaningful trial results and professional recommendations translates poorly into real-world practice, penetrating just a fraction of a field that might benefit from added guidance.

Thumbnail

Stryker recalls defibrillators after 6 patient deaths

Stryker announced on Feb. 1 it is voluntarily recalling certain Lifepak 15 monitor/defibrillators over an issue which may cause the devices to lock up and not deliver potentially life-saving therapy. The company reported there have been six patient deaths after delays in therapy related to this problem.

Thumbnail

Tachycardia in cancer patients linked to poor survival

Cancer patients who experienced tachycardia within one year of being diagnosed carried higher mortality rates up to a decade later—even after adjusting for clinical characteristics and medication use—according to research presented Jan. 25 at the Advancing the Cardiovascular Care of the Oncology Patient conference.

Thumbnail

Younger breast cancer patients see elevated long-term risk for AFib

Breast cancer patients under 60 years old are nearly twice as likely as their healthy counterparts to develop both short- and long-term atrial fibrillation (AF), researchers reported Jan. 29 in Heart Rhythm.

Thumbnail

NOACs replace warfarin as recommended treatment for reducing stroke in AFib patients

Non-vitamin K oral anticoagulants (NOACs) including dabigatran, rivaroxaban, apixaban and edoxaban have replaced warfarin as the preferred treatment for reducing stroke risk in patients with atrial fibrillation, according to updated guidelines issued Jan. 28.

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.