title: Sinus dysfunction after stent implantation in the right coronary artery immediately recovered after reflow in the sinus node artery.
abstract: A 67-year-old man who had a history of syncope was admitted because of effort angina. The sinus node (SN) was the single blood supply from the right coronary artery (RCA). After we implanted 2 everolimus-eluting stents for RCA, slow-flow occurred and the SN artery was occluded, and junctional escape rhythm was sustained. After the wiring to the occluded SN artery, junctional escape rhythm immediately recovered to sinus rhythm, and the patient achieved continuous sinus rhythm and stable hemodynamics. Given that acute SN ischemia is a possible cause of sinus dysfunction, careful choice of a percutaneous coronary intervention strategy should be taken into consideration if the SN artery is the single blood supply from the RCA and if syncopal history is present.
authors.affiliation: Department of Cardiology, Takaoka Municipal Hospital, Takara-machi 4-1, Takaoka, 933-8550, Japan, tatsuo_haraki@med-takaoka.jp.
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Haraki
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hirase
authors.forename: Shigeru
authors.initials: S
authors.lastname: Hoda
authors.forename: Masafumi
authors.initials: M
authors.lastname: Hashimoto
authors.forename: Masaya
authors.initials: M
authors.lastname: Higashi
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000209:etiology / Q000628:therapy*; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging / Q000628:therapy*; D003331:Coronary Vessels / Q000503:physiopathology; D054855:Drug-Eluting Stents / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011859:Radiography; D012307:Risk Factors; D054138:Sinus Arrest, Cardiac / Q000209:etiology / Q000503:physiopathology* / Q000628:therapy*