PMID- 10336931 OWN - NLM STAT- MEDLINE DCOM- 20000906 LR - 20190503 IS - 1355-6037 (Print) IS - 1468-201X (Electronic) IS - 1355-6037 (Linking) VI - 81 IP - 6 DP - 1999 Jun TI - Eosinophilic myocarditis associated with dense deposits of eosinophil cationic protein (ECP) in endomyocardium with high serum ECP. PG - 669-71 AB - A case of eosinophilic myocarditis following high serum levels of eosinophil cationic protein (ECP) is described. A 27 year old woman was admitted with New York Heart Association (NYHA) class III congestive heart failure. A haematological study showed hypereosinophilia with degranulation and vacuoles; the total eosinophil count was 7980/ml and the ECP serum concentration was noticeably high at 150 ng/ml. Endomyocardial biopsy from the right ventricle showed infiltration of eosinophils and dense deposits of ECP in the endocardium as well as the myocardium. Steroid treatment returned the total eosinophil count and serum ECP to normal, with satisfactory improvement in clinical features. Eosinophilia may cause cardiac damage, and this report confirms that eosinophil degranulation is toxic. Thus, serum ECP seems to be a reliable indicator for diagnosis and for determining treatment parameters of eosinophilic myocarditis. FAU - Arima, M AU - Arima M AD - Department of Internal Medicine, Division of Cardiology, Juntendo Urayasu Hospital, Juntendo University School of Medicine, 2-1-1, Tomioka, Urayasu-shi, Chiba 279-0002, Japan. FAU - Kanoh, T AU - Kanoh T LA - eng PT - Case Reports PT - Journal Article PL - England TA - Heart JT - Heart (British Cardiac Society) JID - 9602087 RN - 0 (Blood Proteins) RN - 0 (Eosinophil Granule Proteins) RN - EC 3.1.- (Ribonucleases) SB - IM MH - Adult MH - Blood Proteins/*analysis MH - Endocardium/*chemistry MH - Eosinophil Granule Proteins MH - Eosinophilia/*metabolism MH - Female MH - Humans MH - Myocarditis/*metabolism MH - *Ribonucleases PMC - PMC1729068 EDAT- 1999/05/25 06:00 MHDA- 2000/09/09 11:01 PMCR- 2002/06/01 CRDT- 1999/05/25 06:00 PHST- 1999/05/25 06:00 [pubmed] PHST- 2000/09/09 11:01 [medline] PHST- 1999/05/25 06:00 [entrez] PHST- 2002/06/01 00:00 [pmc-release] AID - 10.1136/hrt.81.6.669 [doi] PST - ppublish SO - Heart. 1999 Jun;81(6):669-71. doi: 10.1136/hrt.81.6.669.