Effect of Smoking on Activated Clotting Time Values During Coronarography and Angioplasty

Inclusion Criteria: * any patient older than 18 years needing a diagnostic coronarography was eligible for enrollment Exclusion Criteria: * unconscious patient * any patient presenting with one of the following characteristic known to impact either on ACT or aPTT measurements as: oral anticoagulation medication (anti-vitamin K and non-vitamin K antagonist oral anticoagulants \[NOAC\]), fondaparinux or LMWH usage, coagulopathy defined as prothrombin time \< 50 % or thrombopenia \< 50 000 G/L, declared or observed thrombophilia defined as antithrombin \< 50%, baseline aPTT values with a ratio patient/control \> 1.2 presence of lupus anticoagulant, connective tissue disease, active cancer * a person as defined by the law articles L. 1121-5, L. 1121-7 et L1121-8 of the Code de la santé publique, France (pregnant, parturient women or breastfeeding women, legally adult patient under legal protection measure \[tutelage, protection of vulnerable adults\]), * a person as defined by the law articles L. 3212-1 et L. 3213-1 of the Code de la santé publique, France (legally adult patient unable to consent, person with legal or administrative freedom restriction or person under psychiatric treatment)