Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Analgesics

Central Nervous System Depressants

All Drugs and Chemicals

Dexmedetomidine

Levobupivacaine

Hypnotics and Sedatives

Analgesics, Non-Narcotic

Adrenergic Agents

Adrenergic alpha-Agonists

Adrenergic Agonists

Neurotransmitter Agents

Anesthetics

Anesthetics, Local

Study Group 1 (Group L): patients undergoing an ultrasound guided modified pectoral nerve block (technique described by Blanco et al\[1\]) with levobupivacaine 0.25% 29,5ml + 0,5ml physiologic serum (total volume 30ml) (10ml between major and minor pectoral muscle and 20ml between minor pectoral muscle and anterior serratus muscle at the level of the third or fourth rib).

Study Group 2 (Group LD): patients undergoing an ultrasound guided modified pectoral nerve block (a technique described by Blanco et al\[1\]) with levobupivacaine 0.25% 29,5ml + Dexmedetomidine 50µg (0,5ml)with a total volume of 30ml. (10ml between major and minor pectoral muscle and 20ml between minor pectoral muscle and anterior serratus muscle at the level of the third or fourth rib).

Infiltration with 0.25% 29,5ml + 0,5ml physiologic serum (total volume 30ml), US guided, using pectoralis block technique.

Infiltration with chirocaine 0.25% 29,5ml + 0,5ml dexmedetomidine (50µg) (total volume 30ml), US guided, using pectoralis block technique.

Levobupivacaine + Dexmedetomidine

Hilde Coppejans, MD

A double blind prospective randomized controlled trial in which the effect of single shot levobupivacaine 0,25% will be compared with the effect of levobupivacaine 0.25% in association with dexmedetomidine when performing an ultrasound guided modified pectoral nerve block , in patients undergoing a mastectomy with axillar procedure.

The difference in effect will be evaluated by monitoring the postoperative morphine consumption in both groups .

The hypothesis is that there is a significant decrease in morphine consumption during the first 24h postoperatively due to association of dexmedetomidine to the local anesthetic compared to the local anesthetic alone when performing a ultrasound guided modified pectoral nerve block. The morphine consumption will be the primary outcome parameter.

Women (18+, American Society of Anesthesiologists 1,2,3) undergoing a mastectomy with axillar procedure will be randomised and receive a ultrasound guided modified pectoral nerve block, if participants meet in- and exclusion criteria and provide written informed consent.

Using a two needle approach, ten milliliters of local anesthetic is injected under ultrasound guidance between the major and minor pectoral muscle and twenty milliliters between the minor pectoral and the serratus anterior muscle, on the side to be operated.

Participants receive intravenous Patient Controlled Analgesia with morphine and dehydrobenzperidol (1mg/ml morphine, 50µg dehydrobenzperidol/ml).

Furthermore every participant in the trial will receive ketorolac 0.5mg/kg three times a day and paracetamol four times 1g per day.

When the analgesia using the intravenous Patient Controlled Analgesia regime isn't sufficient, the anesthesiologist will titrate with morphine until pain free using a protocol (a bolus of 2mg morphine IV every ten minutes until pain free).

Comparison Between Levobupivacaine and Levobupivacaine With Dexmedetomidine in Ultrasound Guided Pectoral Nerve Block

Comparison Between Levobupivacaine 0.25% and Levobupivacaine With Dexmedetomidine in Ultrasound Guided Modified Pectoral Nerve Block, a Double Blind Randomised Controlled Trial.

Milligrams of morphine used by the patient registrated by patient controlled intravenous analgesia delivery device (PCIA) during 24 hours after surgery

Time between end of general anesthesia and a patients first demand of morphine registrated by PCIA.

Amount of times the patient pushed the PCIA button even during lockout time period

Amount of times the patient pushed the PCIA button and morphine is delivered.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Comparison Between Levobupivacaine and Levobupivacaine With Dexmedetomidine in Ultrasound Guided Pectoral Nerve Block	NCT03456661	Breast Cancer Mastectomy, Mod...	Levobupivacaine Levobupivacaine...	18 Years -	University Hospital, Antwerp
Comparison Between Levobupivacaine and Levobupivacaine With Dexmedetomidine in Ultrasound Guided Pectoral Nerve Block	NCT03456661	Breast Cancer Mastectomy, Mod...	Levobupivacaine Levobupivacaine...	18 Years -	University Hospital, Antwerp

Spots Global Cancer Trial Database for pectoral block