Patients with acute myocardial infarction and non-obstructive coronary arteries: Safety and prognostic relevance of invasive coronary provocative tests

Gaetano Antonio Lanza, Filippo Crea, Rocco Antonio Montone, Giampaolo Niccoli, Francesco Fracassi, Michele Russo

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

Functional alterations of epicardial coronary arteries or coronary microcirculation represent a frequent cause of myocardial infarction and non-obstructive coronary arteries (MINOCA). We aimed at assessing the prognostic value of intracoronary provocative tests in patients presenting with MINOCA and in which other causes of MINOCA have been excluded. Methods and results We prospectively evaluated patients with a diagnosis of MINOCA, excluding patients with aetiologies other than suspected coronary vasomotor abnormalities. Immediately after coronary angiography, an invasive provocative test using acetylcholine or ergonovine was performed. The incidence of death from any cause, cardiac death, and recurrence of acute coronary syndrome (ACS) was assessed at follow-up. We also assessed angina status using Seattle Angina Questionnaires (SAQ). We enrolled 80 consecutive patients [mean age 63.0±10.7 years, 40 (50%) male]. Provocative test was positive in 37 (46.2%) patients without any complication. Among patients with a positive test, epicardial spasm was detected in 24 (64.9%) patients and microvascular spasm in 13 (35.1%) patients. After a median follow-up of 36.0 (range 12.0-60.0)months, patients with a positive test had a significantly higher occurrence of death from any cause [12 (32.4%) vs. 2 (4.7%); P= 0.002], cardiac death [7 (18.9%) vs. 0 (0.0%); P= 0.005], and readmission for ACS [10 (27.0%) vs. 3 (7.0%); P= 0.015] as well as a worse angina status as assessed by SAQ [Seattle score: 88.0 (33.0-100.0) vs. 100.0 (44.0-100.0); P = 0.001] when compared with patients with a negative test. Conclusions We demonstrate that in patients presenting with MINOCA and suspected coronary vasomotor abnormalities, a positive provocative test for spasm is safe and identifies a high-risk subset of patients.
Original languageEnglish
Pages (from-to)91-98
Number of pages8
JournalEuropean Heart Journal
Volume39
DOIs
Publication statusPublished - 2018

Keywords

  • Cardiology and Cardiovascular Medicine
  • Invasive provocative test
  • MINOCA
  • Prognosis
  • Vasospasm

Fingerprint Dive into the research topics of 'Patients with acute myocardial infarction and non-obstructive coronary arteries: Safety and prognostic relevance of invasive coronary provocative tests'. Together they form a unique fingerprint.

Cite this