Contribution of Preserving the Superior Left Colic Artery to the Vascularization of the Descending Colon Prior to Colorectal Anastomosis During Left-Sided or Rectal Resections for Colorectal or Ovarian Cancer. (Revascularisation Colique)

Exclusion Criteria

• •Contraindication to indocyanine green: thyroid adenoma, hyperthyroidism, hypersensitivity or allergy to one of the components, severe renal failure (GFR \<30 ml/min/1.73m2),
• •Patient with a history of abdominal vascular surgery
• •Patient (e) not having left colic artery on vascular mapping of preoperative abdominal-pelvic scanners,
• •Patient whose regular follow-up is not possible for psychological, family, social or geographical reasons,
• •Patient (s) under guardianship, curatorship or safeguard of justice,
• •Pregnant and/or breastfeeding patient,