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Related to major surgery: surgically
an extensive, relatively difficult surgical procedure involving vital organs or in itself hazardous to life.
a surgical procedure that is extensive, involving removal of organs, and/or life-threatening.
major surgeryAny operation:
(1) Within or upon the contents of the abdominal, pelvic, cranial or thoracic cavities; or
(2) Which, given the locality, condition of patient, level of difficulty or length of time to perform, constitutes a hazard to life or function of an organ or tissue.
Major surgery usually requires general anaesthesia, a period of hospitalisation of varying length (often a week) and may be performed by a general—board-certified—surgeon in a secondary care hospital, or by a surgical subspecialist in a tertiary care hospital.
1. A surgical operation within or upon the contents of the abdominal–or pelvic, cranial, or thoracic cavities, or.
2. A procedure which, given the locality, condition of Pt, level of difficulty, or length of time to perform, constitutes a hazard to life or function of an organ or tissue. Cf Minor surgery.