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.

Two European EP groups to hold joint congress

Two European cardiac electrophysiology congresses will hold a joint annual event beginning 2014 after signing an agreement June 13 at Cardiostim 2012 in Nice, France.

Quantitative MR model may shed light on prostate cancer aggressiveness

Source: Radiology, published online May 1, 2012A diffusional kurtosis model may help differentiate benign regions from malignant prostate cancer and distinguish low- from high-grade regions, according to a study published online May 1 in Radiology.

Medtronic sees double-digit gains in FY12, Q4

Medtronic has posted strong financial results for its 2012 fourth quarter and 2012 fiscal year, which ended April 27.

NEJM: Common antibiotic linked to a few CV deaths, prompting FDA review

There was a small absolute increase in cardiovascular deaths, which was most pronounced among patients with a high baseline risk of cardiovascular disease during the five-day administration of the antibiotic azithromycin (Zithromax, Pfizer) therapy. This study, which evaluated nearly 350,000 prescriptions of azithromycin and was published May 17 in the New England Journal of Medicine, has prompted an FDA review of its results.

HRS: Anti-arrhythmics for VT/ICD: Do the benefits outweigh the risks?

BOSTONIs anti-arrhythmic drug use in ventricular arrhythmia and device patients safe? While the drugs might be useful in some instances, clinicians should not forget about the risks, said Paul Dorian, MD, MSc, during a presentation May 10 at the 33rd annual scientific sessions of the Heart Rhythm Society (HRS).

HRS: Mind the gap: ICD variation remains unexplained

BOSTONWhile innovations within the healthcare industry remain electric, there is still unexplained variations in care patterns in the U.S., particularly for device implants. Cardiologist density and patient insurance type could be some of the culprits, Paul Heidenreich, MD, of Stanford University, Palo Alto, Calif., said, adding that more work needs to be done to figure out the reasons for these differentiations.

HRS: Watchman still strong for stroke prevention, even without warfarin

BOSTONImplantation of the Watchman device (Boston Scientific) without a warfarin transition is safe and effective in atrial fibrillation (AF) patients with contraindications to even short-term oral anticoagulation, according to an analysis of the ASA Plavix registry, presented May 11 as a late-breaking clinical trial at the 33rd annual scientific sessions of the Heart Rhythm Society.

HRS: To have or to holdanticoagulation use during device procedure

BOSTONTo hold or not to hold, that may be the question on surgeons' minds as patients present for surgery. Should anticoagulation be continued at the time of surgery or held in fear of thromboembolic risk? According to Michael C. Giudici, MD, of Genesis Heart Institute in Davenport, Iowa, the complication risks may be similar for both options; however, he summed that in most cases anticoagulation can and should be continued.

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.

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