This is a single-center, randomized, phase II, non-comparative, single-blind clinical study that will determine whether morphine reduction through intraoperative monitoring by ANI (Analgesia Nociception Index) significantly reduces chronic post-surgical pain at three months after laparotomy for ovarian carcinoma with regard to standard care.
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Proportion of patients with a pain score on the self-assessment VAS > 4, three months after the surgery.
Timeframe: 3 months after surgery