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Doppler echocardiography can estimate SVR, and is particularly accurate at identifying a low SVR.
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Focal left atrial tachycardias are an important complication after pulmonary vein isolation.
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During the last few years, chronic kidney disease has been increasingly recognized as a significant risk factor for the development of cardiovascular disease. An American Heart Association Scientific Statement reviewing this subject was published last fall.
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Merck announced on September 30th that it is voluntarily withdrawing rofecoxib (Vioxx) from the worldwide market.
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Patients with painless acute aortic dissection are more likely to present with syncope, congestive heart failure or stroke, and have a higher mortality, especially with type B dissection.
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Patients who use both erythromycin and CYP3A inhibitors, particularly calcium channel blockers, had an increased risk of sudden death from cardiac causes.
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Folic acid and B vitamins may yet be proven to have a positive role through decreasing HC levels, but enthusiasm for such an approach is no longer appropriate.
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These data should force us to look at factors other than the traditional variables we have used to assess risks among patients with a history of ventricular arrhythmias.
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Mild, perivalvular regurgitation cannot be used as a diagnostic criteria for prosthetic valve endocarditis.
