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A calcium score < 100 eliminates the need for myocardial perfusion scans (MPS), but patients with a negative MPS often have coronary calcium. These findings imply a potential role for applying coronary artery calcium screening after MPS among patients manifesting normal MPS.
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The use of automatic external defibrillators by trained volunteers is safe and effective, particularly in public locations where there is at least a moderate likelihood that an out-of-hospital cardiac arrest will be witnessed.
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The developing world is experiencing an epidemic of CAD which expects to continue to increase in the foreseeable future.
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Low-dose aspirin is as effective as warfarin for preventing cerebral thromboembolic events after bioprosthetic aortic valve replacement.
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The Prevention of Atrial Fibrillation After Cardioversion Trial was a placebo-controlled study comparing sotalol and a quinidine/verapamil combination in patients with persistent atrial fibrillation after cardioversion.
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In the United States, its a case for the courts when an HIV-infected mother wishes to breast-feed. In most of the nations where HIV proliferates, women are faced with a Sophies choice: Should they breast-feed and risk transmitting HIV to their infant, or should they use substitute nutrition, which may place their infant at greater risk of dying within the first year?
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Researchers and clinical trials managers may have noticed that the best practices standards in tissue banking have been evolving in recent years due to scientific advances, greater public scrutiny on human subject protection, and new privacy rules under the Health Insurance Portability and Accountability Act.
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The 12-lead ECG and accompanying rhythm strip in the Figure were obtained from an 84-year-old man who presented to the emergency department with acute dyspnea from pneumonia and heart failure. Can you account for the relatively slow heart rate despite his acute shortness of breath?
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The next time you are in the ED and have a quiet moment, review your hazardous material protocols. Imagine a scenario where, by terror attack, terror hoax, or public fear, an asymptomatic individual (or individuals) brings to you a suspicious powder or substance. Is there a rational approach to handling this situation?
