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Magnesium and Ketamine in Postoperative Analgesia

2019-10-08 08:47:41 | BioPortfolio

Summary

90 female patients scheduled for cancer breast surgeries will be assigned to 2 groups, each of 45. Group (K) will receive a bolus of 0.5 mg/kg ketamine with induction of anaesthesia, followed by ketamine infusion 0.12 mg/kg/hour continued till 24 hours after surgery. Group (KM) will receive a bolus of 0.5 mg/kg ketamine added to 50mg/kg magnesium sulfate over 30 minutes after induction of anaesthesia, followed by ketamine infusion 0.12 mg/kg/hour added to 8mg/kg/hour of magnesium sulfate continued till 24 hours after surgery. The same anaesthetic regimen will be applied to all patients. Total intraoperative fentanyl required to maintain mean blood pressure within 20% of its baseline will be recorded. After surgery, all patients will be connected to PCA device containing morphine solution, the amount of morphine consumed during the first 24 hours will be recorded. In the follow-up visits after 3 months, all patients will be assessed for neuropathic pain by DN4 questionnaire.

Description

90 female patients aged between 18 and 65 years, scheduled for cancer breast surgeries will be assigned to 2 groups, each of 45. Group (K) will receive a bolus of 0.5 mg/kg ketamine with induction of anaesthesia, followed by ketamine infusion 0.12 mg/kg/hour continued till 24 hours after surgery. Group (KM) will receive a bolus of 0.5 mg/kg ketamine added to 50mg/kg magnesium sulfate over 30 minutes after induction of anaesthesia, followed by ketamine infusion 0.12 mg/kg/hour added to 8mg/kg/hour of magnesium sulfate continued till 24 hours after surgery. The same anaesthetic regimen will be applied to all patients. Total intraoperative fentanyl required to maintain mean blood pressure within 20% of its baseline will be recorded. After surgery, all patients will be connected to PCA device containing morphine solution, the amount of morphine consumed during the first 24 hours will be recorded. In the follow-up visits after 3 months, all patients will be assessed for neuropathic pain by DN4 questionnaire.

Study Design

Conditions

Postoperative Analgesia

Intervention

Ketamine, ketamine and magnesium

Status

Not yet recruiting

Source

National Cancer Institute, Egypt

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-10-08T08:47:41-0400

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Medical and Biotech [MESH] Definitions

A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.

A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.

A pyrrolizine carboxylic acid derivative structurally related to INDOMETHACIN. It is a non-steroidal anti-inflammatory agent used for analgesia for postoperative pain and inhibits cyclooxygenase activity.

Magnesium chloride. An inorganic compound consisting of one magnesium and two chloride ions. The compound is used in medicine as a source of magnesium ions, which are essential for many cellular activities. It has also been used as a cathartic and in alloys.

Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.

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