Seasonal patterns of acute and recurrent idiopathic pericarditis

Background Idiopathic pericarditis is presumed to result from viral infection. The incidence rates of some viral infections have typical seasonal patterns. The data in the literature on a possible seasonal pattern of acute pericarditis are very limited. The mechanism and possible seasonality of recurrent episodes are not well established . Hypothesis The incidence of acute idiopathic pericarditis has a seasonal pattern. Methods The computerized...