大櫛 日出郷¹, 奥本 哲生¹, 猪井 順也², 大脇 嶺³, 西村 直己³, 山本 克人³, 大木 崇⁴

Hidesato OKUSHI¹, Tetsuo OKUMOTO¹, Junya INOI², Takane OOWAKI³, Naoki NISHIMURA³, Katsuto YAMAMOTO³, Takashi OKI⁴

¹土佐市民病院内科, ²国立高知病院内科, ³高知市民病院循環器科, ⁴徳島大学医学部第二内科

¹Department of Internal Medicine, Tosa City Hospital, ²Department of Internal Medicine, Kochi National Hospital, ³Cardiovascular Division, Kochi City Hospital, ⁴The Second Department of Internal Medicine, Tokushima University, School of Medicine

キーワード : Acute pericarditis, Pericardial fluid flow, Color Doppler echocardiography

A 58-year-old man with acute pericarditis was reported in which pericardial fluid flow detected by color Doppler echocardiography. In the acute phase with pericardial effusion, the flow of pericardial fluid indicated the red color signal toward the apex at systole, and the blue color signal toward the annulus at early diastole. After six months, however, there was no color flow signal with the disappearance of the pericardial effusion. This signal of pericardial fluid flow needed to be differentiated from that of the intrapericardial blood flow due to cardiac rupture after acute myocardial infarction or aortic dissection. It is suggested that the echo source of the pericardial fluid flow was blood cell components or fibrous strands exuded from the pericardium, and that the flow was produced by uneven intrapericardial pressure due to pericardial adhesion or the mechanical effect of the beating heart.