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Initiating a radiation safety protocol in their congenital heart center reduced the cumulative radiation dose in patients undergoing catheterizations by 61 percent, cardiologists reported in the November issue of Catheterization and Cardiovascular Interventions.

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For older male patients with heart failure and left ventricular hypertrophy, erectile dysfunction medications may protect the heart,  a meta-analysis published online Oct. 18 in BMC Medicine found. The researchers also reported that the drugs were safe and well tolerated.

 - hospitalist and patient

Almost one in five patients who undergo cardiac surgery get readmitted, with the vast majority rehospitalized within 30 days. The findings, published in the October issue of the Annals of Thoracic Surgery, have implications for future quality measures.

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Fighting adolescent obesity with a healthy message has sweet effects. Researchers studied how adolescents made purchasing choices after being exposed to four different messages about sugar-sweetened drinks. Some decided against drink purchases altogether, according to the study published online Oct. 16 in the American Journal of Public Health.

 - ecg, heart, electrophysiology

Breathing through the night does heart patients a world of good: For patients with heart failure and sleep disordered breathing, 30-day readmission rates dropped to zero when using continuous positive airway pressure (CPAP) adequately.