Spots Global Cancer Trial Database for Analgesia Nociception Index (ANI) After Unilateral Radical Mastectomy as an Evaluation of Paravertebral Block Failure

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Trial Identification

Brief Title: Analgesia Nociception Index (ANI) After Unilateral Radical Mastectomy as an Evaluation of Paravertebral Block Failure

Official Title: Analgesia Nociception Index (ANI) After Unilateral Radical Mastectomy as an Evaluation of Paravertebral Block Failure

Study ID: NCT03832920

Conditions

Breast Cancer

Interventions

Analgesia Nociception Index

Study Description

Brief Summary: Paravertebral Block (PVB) combined with general anesthesia (GA) is a conventional pain treatment for breast surgery but sometimes failures can occurs. The efficacy of this block has to be evaluated. Also, for the intra-operative analgesic evaluation of this block, it is necessary to measure intra-operative analgesia index. A monitor of nociception for patients under GA, the PhysiodolorisTM device, offers an index for measuring nociceptive inputs during surgery in anesthetized patients : the ANI index (based on the single R-R interval analysis). The purpose of this observational and prospective study is to assess the variations of this ANI index during breast surgery with or without axillary node dissection with a PVB. This will allow us to quantify the analgesic effect of a PVB during GA for unilateral radical breast surgery with or without axillary node dissection.

Detailed Description: