Comparison of the Effects of Two Concentrations of Adrenaline (0.33 mg/l vs 1 mg/l) in the Irrigation Serum of Arthroscopic Shoulder Surgery

Inclusion Criteria: * Patient over 18 years of age, having read and signed the consent form for participation in the study after a reflection period (approximately 15 minutes) * Patient with a rotator cuff pathology (subacromial impingement, long biceps tendinopathy or rotator cuff tendinopathy) * Patient for whom an arthroscopic surgical indication has been given Exclusion Criteria: * Allergy to epinephrine * History of Takotsubo cardiomyopathy * Coagulation disorder * Patient under court protection, guardianship or curatorship * Patient not affiliated to the French social security system * Patient participating in another therapeutic protocol * Breastfeeding woman, * Pregnant woman or woman of childbearing age without highly effective contraception for the duration of the study (surgically sterile, intrauterine device (\> 14 days), hormonal contraception (same dose and formulation for at least 6 months), sexual abstinence. Women of childbearing age, i.e. fertile, are considered to be post-menopausal unless they are permanently infertile or have undergone surgical sterilisation. A post-menopausal condition is defined as the absence of menstruation for 12 months without any other medical cause * Patient unable to understand informed information and/or give written informed consent: dementia, psychosis, disturbed consciousness, non-French speaking patient