Perioperative Lignocaine and Sleep Disturbance

Effect of Peroperative Intravenous Infusion of Lignocaine on the Quality of Postoperative Sleep

The aim of this clinical trial is to study the effect of an intravenous infusion of lidocaïne in a multimodal analgesic protocol on the architecture sleep during the first postoperative night.

To study the effect of lidocaïne, we plan to include 40 patients, randomized in 2 groups, undergoing open prostate surgery in this randomized placebo-controlled trial.

Before anesthesia induction, these patients receive an intravenous lidocaine infusion (bolus 1,5 mg.kg-1 followed by a continuous infusion of 2mg.kg-1.h during 24 hours) or an equal volume of placebo. Then the anesthesia is induced with propofol, sufentanil et rocuronium. The postoperative analgesia is provided by paracetamol, tramadol and patient-controlled analgesia (PCA) with morphine or oral oxycodone. A polysomnography is registred on the preoperative night and on the first postoperative night.

Inclusion Criteria:

• Radical prostatectomy

Exclusion Criteria:

• BMI > 30
• Neurologic/psychiatric diseases or therapeutics, seizyres
• Cardiac disease, second or third degree atrioventricular block
• Obstructive sleep apnea syndrome
• History of liver or renal insufficiency
• and any contraindication to the anesthetic protocol of the study.