Intracoronary Provocative Test With Acetylcholine in Patients With INOCA and MINOCA

"Variables collected will include:~* demographics (sex, age)~* comorbidities (type 2 diabetes mellitus, familiar history of CAD, smoke habit, dyslipidaemia, hypertension, history of CAD)~* echocardiographic (left ventricle ejection fraction at admission, the presence and grade of diastolic dysfunction, and the presence and grade of any valvulopathies)~* angiographic data (presence of non-obstructive CAD (any coronary lesion \<50% diameter stenosis), the presence of myocardial bridge and, if this latter is present, its localization and length)~* laboratory measurements (hematologic variables (haemoglobin and white blood cells), creatinine, high sensitivity cardiac troponin I (hs-cTnI), and C-reactive protein (CRP) at the time of admission)~* medical therapy at admission~* response to intracoronary provocative test with ACh."

All patients will undergo a clinical follow-up by telephonic interview and/or clinical visit at 6, 12, 24, 36, 48 and 60 months from hospital discharge, during which the incidence of MACCE in the past months will be investigated and collected.