NCT02185859

Brief Summary

Postsurgical pain is a relevant side effect following surgery which increases the risk of various complications and delays postoperative patient recovery. Among the many types of surgeries, mastectomy causes not only acute but also chronic pain in many patients. Therefore, it is important to control pain and increase patients' recovery satisfaction following many kinds of operations by using as small an opioid analgesic dose as possible and adding a nonopioid analgesic to reduce the side effects of narcotic analgesics. Among nonopioid analgesics, lidocaine and magnesium are drawing attention, having been shown to be helpful in controlling postoperative pain by lowering pain hypersensitivity to surgical stimuli. An intraoperative intravenous injection of lidocaine has been reported to improve postoperative pain control by reducing postoperative pain and opioid consumption. Another report showed that an intraoperative intravenous injection of lidocaine improved the quality of postoperative functional recovery after general anesthesia in a laparoscopic cholecystectomy patient. In addition, a review article on the effect of intraoperative intravenous injection of magnesium found it to be an effective analgesic that may be added to conventional opioid-based therapy because it generally reduces opioid consumption, decreases pain assessment for 24 hours after surgery, and lacks severe side effects in relation to magnesium administration. However, there has been insufficient research comparing the intraoperative intravenous injection of lidocaine or magnesium in terms of which is more helpful for general functional recovery and decreased postoperative pain. Recently, the scope of research on anesthesia has come to embrace postanesthetic recovery; to help patients return to daily life, the research trend is now shifting from the improvement or resolution of a specific symptom to the measurement of general recovery. A widely used method to measure postoperative recovery is the Quality of Recovery 40 (QoR-40) survey. Therefore, in this study, the researchers investigated the intraoperative intravenous injection of lidocaine and the intravenous injection of magnesium to compare these drugs' helpfulness in the functional recovery of mastectomy patients after general anesthesia.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
126

participants targeted

Target at P50-P75 for not_applicable breast-cancer

Timeline
Completed

Started Jul 2014

Shorter than P25 for not_applicable breast-cancer

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2014

Completed
6 days until next milestone

First Submitted

Initial submission to the registry

July 7, 2014

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 10, 2014

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
Last Updated

October 19, 2015

Status Verified

October 1, 2015

Enrollment Period

1.2 years

First QC Date

July 7, 2014

Last Update Submit

October 16, 2015

Conditions

Keywords

LidocaineMagnesiumMastectomyFunctional Recovery

Outcome Measures

Primary Outcomes (1)

  • The difference of QoR-40 global scores

    The investigators will evaluate the quality of recovery after general anesthesia by considering the global score (200 points in total) of QoR-40 surveys, which is obtained by summing the subtotal scores for emotional status, physical comfort, psychological support, physical independence, and pain. The QoR-40 administered 24 hours after the operation is the primary endpoint of this research.

    24 hours after mastectomy

Study Arms (3)

Perioperative lidocaine infusion

EXPERIMENTAL
Drug: Lidocaine

Perioperative magnesium infusion

EXPERIMENTAL
Drug: Magnesium Sulfate

Noraml saline infusion

ACTIVE COMPARATOR
Drug: Saline

Interventions

The lidocaine group (Group L)- 1% lidocaine 40 mL is prepared in a 50 mL syringe; A bolus dose of the studied drugs are administered for 15 minutes immediately after a subject is brought into the operating room, and the vital signs are checked (from the beginning of anesthesia induction). Subsequently, an intravenous injection of the maintenance dose is continuously performed and later stopped just before transferring the subject to a recovery room. (Group L subjects are administered lidocaine 2 mg/kg for 15 minutes immediately after the anesthesia induction, and then lidocaine 2 mg/kg/h is continuously injected. The dose of lidocaine and magnesium in this study has been shown in previous studies to be safe and to have an analgesic effect.)

Perioperative lidocaine infusion

the magnesium group (Group M)- MgSO4 4g 40 mL is prepared in a 50 mL syringe.) A bolus dose of the studied drugs are administered for 15 minutes immediately after a subject is brought into the operating room, and the vital signs are checked (from the beginning of anesthesia induction). Subsequently, an intravenous injection of the maintenance dose is continuously performed and later stopped just before transferring the subject to a recovery room. The dose of magnesium in this study has been shown in previous studies to be safe and to have an analgesic effect.

Perioperative magnesium infusion
SalineDRUG

the control group (Group C) - 0.9% normal saline 40 mL is prepared in a 50 cc syringe. A bolus dose of the studied drugs are administered for 15 minutes immediately after a subject is brought into the operating room, and the vital signs are checked (from the beginning of anesthesia induction). Subsequently, an intravenous injection of the maintenance dose is continuously performed and later stopped just before transferring the subject to a recovery room.Group C subjects are administered the same dose of normal saline.

Noraml saline infusion

Eligibility Criteria

Age20 Years - 65 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged between 20 and 65 who have undergone mastectomy due to breast cancer and of American Society of Anesthesiologists (ASA) Physical Status Class 1 or Class 2

You may not qualify if:

  • Patients experiencing pain for any cause or taking an analgesic
  • Pregnant patients
  • Patients with severe heart, kidney, or liver disease
  • Patients with a psychiatric or neurological disorder
  • Patients with a contraindication or allergic response to lidocaine
  • Patients with a contraindication or allergic response to magnesium

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yonsei University, College of Medicine, Yonsei Health System, Yonsei Cancer Center

Seoul, Seoul, 120-752, South Korea

Location

MeSH Terms

Conditions

Breast Neoplasms

Interventions

LidocaineMagnesium SulfateSodium Chloride

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

AcetanilidesAnilidesAmidesOrganic ChemicalsAniline CompoundsAminesMagnesium CompoundsInorganic ChemicalsSulfatesSulfuric AcidsSulfur AcidsSulfur CompoundsChloridesHydrochloric AcidChlorine CompoundsSodium Compounds

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 7, 2014

First Posted

July 10, 2014

Study Start

July 1, 2014

Primary Completion

September 1, 2015

Study Completion

September 1, 2015

Last Updated

October 19, 2015

Record last verified: 2015-10

Locations