{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:51:26Z","timestamp":1753876286672,"version":"3.41.2"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T00:00:00Z","timestamp":1727049600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Immunoglobulin G4 (IgG4)\u2013related diseases are systemic fibroinflammatory disease characterized by extensive infiltration of IgG4-positive plasma cells in the affected tissue(s), with high plasma levels of IgG4. However, coronary involvement is rare.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Case summary<\/jats:title>\n                  <jats:p>A 70-year-old man was diagnosed with IgG4-related coronary arteritis, pancreatitis, and cholangitis during full-body contrast computed tomography (CT) examination prior to surgery for an iliac artery aneurysm. 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography\/CT showed increased uptake of 18F-FDG in the pancreas, extrahepatic bile ducts, and proximal right coronary artery (RCA). Despite the patient being asymptomatic, the RCA showed severe stenosis. The patient was administered a conservative treatment with prednisolone, 30\u2005mg\/day, gradually tapered to 5\u2005mg\/day, for 6 months. Two years later, contrast CT showed improvement of the pancreatic and bile duct lesions; however, the steroid therapy had not improved the coronary artery lesions, and gradual progression of the lesions was observed. Percutaneous coronary intervention was performed with a cutting balloon in the RCA, and good patency was maintained for 1 year after the procedure.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Discussion<\/jats:title>\n                  <jats:p>Steroid therapy is the first-line treatment for IgG4-related diseases; however, there may be some refractory cases. The stenotic and aneurysmal types of IgG4-related coronary arteritis are life-threatening; therefore, we performed revascularization using balloon angioplasty. Determining the optimal revascularization technique for drug-refractory cases requires further investigation.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytae528","type":"journal-article","created":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T11:15:23Z","timestamp":1726830923000},"source":"Crossref","is-referenced-by-count":0,"title":["Steroid-resistant immunoglobulin G4\u2013related coronary arteritis: a case report"],"prefix":"10.1093","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0554-1618","authenticated-orcid":false,"given":"Tomoaki","family":"Okada","sequence":"first","affiliation":[{"name":"Department of Cardiology, Kagawa Prefectural Central Hospital , 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557 ,","place":["Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wataru","family":"Takagi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Kagawa Prefectural Central Hospital , 1-2-1 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