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Effect of Intravenous Magnesium on Postoperative Systemic Inflammatory Response in Patients Undergoing Colorectal Cancer Surgery

2. september 2026 opdateret af: Ain Shams University
The aim of this study is to detect the effect of intraoperative intravenous magnesium sulfate on postoperative systemic inflammatory response by serum inflammatory parameters as CRP, WBCS and neutrophil count.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The aim of this study is to detect the effect of intraoperative intravenous magnesium sulfate on postoperative systemic inflammatory response by serum inflammatory parameters as CRP, WBCS and neutrophil count. In the anesthesia clinic, an informed written consent will be taken from every patient one day before the surgery. Anesthesia will be provided according to the hospital protocol in respect to preoperative investigations, fasting hours and intra-operative monitoring and drugs. VAS score will be explained to the patient and how to express pain intensity with the use of Visual Analogue Scale (VAS); 10 cm unmarked line in which 0=no pain, 10 cm= the worst imaginable pain. All patients will be clinically assessed and standard preoperative investigations will be done; Complete Blood Count, Coagulation profile, liver function tests, kidney function tests, CRP, chest x-ray and ECG. Intraoperative monitoring items included non-invasive blood pressure (NIBP), heart rate (HR), electrocardiography (ECG), pulse oximetry (Spo2), end-tidal CO2 (EtCo2) and urine output (UOP). Pre-induction hemodynamic parameters (heart rate and mean arterial pressure) will be recorded. General anesthesia will be encouraged with propofol (2 mg/kg) IV followed by atracurium 0.5 mg/kg IV and fentanyl 1 ug/kg. After 3 minutes, intubation will be done. Anesthesia will be maintained with isoflurane 1% MAC in oxygen, air and atracurium 0.1 mg/kg. After the induction of anesthesia, For the patients in group A (study group) (26 patients), a bolus dose of magnesium sulfate (50 mg/Kg over 20 minutes) will be administered then, the maintenance dose of magnesium sulfate (15mg/Kg/hour) will be infused till the end of the surgery. In group B (control group) (26 patients), the patients will receive normal saline with the same volume and the same infusion model. The study drug (MgSO4) and the placebo (normal saline) will be prepared in the hospital pharmacy. Each one will be assigned a code so that the anesthetist will remain blinded to group allocation. Intravenous fentanyl infusion 0.4µg/kg/hr will be administrated during intraoperative period till the end of surgery. At the end of surgery, inhalational anesthetics will be discontinued and muscle relaxant will be reversed by intravenous atropine 10 μg/kg and neostigmine 0.05 mg/kg. In both groups, hemodynamic parameters as heart rate and mean blood pressure (MAP) will be continuously monitored till the end of surgery in addition that urine output (UOP) will be frequently monitored and recorded. If heart rate becomes less than 50 bpm, 0.5 mg IV atropine will be given. 10 mg IV ephedrine will be given if mean arterial pressure becomes less than 60 mmHg. Time of recovery (time period from stopping the anesthetic drug administration and the surgical process has been completed to extubation) will be measured in each group.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

52

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

  • Navn: Sherif Farouq Ibrahim El Shantory, Professor
  • Telefonnummer: +20199811994

Studiesteder

    • Abbassia
      • Cairo, Abbassia, Egypten, 00202

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • ASA I and ASA II.
  • Age (35yrs - 75yrs).
  • Patients undergoing open colorectal cancer surgery.
  • Sex: Both sexes.

Exclusion Criteria:

  • Renal impairment (Glomerular Filtration Rate < 60 ml\min).
  • Severe cardiac dysfunction (Ejection fraction ≤ 30% or clinical signs and symptoms of reduced left ventricular ejection fraction), preoperative bradycardia (HR < 50 bpm) and atrioventricular block (first, second and third degree).
  • Allergy to study drug (MgSO4).
  • Patient refusal to precipitate in this study.
  • Autoimmune disorders (eg: rheumatoid arthritis, multiple sclerosis and lupus), congenital and acquired immunodeficiency.
  • Previous / current immunomodulatory therapy.
  • Emergency condition (eg: obstruction or perforation in colorectal cancer).
  • Postoperative complications altering inflammatory response (eg: infection, anastomotic leak).
  • Duration of operation > 5 hours.
  • Cognitive impairment (eg: Dementia) and other psychiatric disorders by history.
  • Body mass index less than 18 or greater than 30 kg/m².

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Støttende pleje
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: study group (magnesium sulfate group)
After the induction of anesthesia, the patients will receive loading intravenous magnesium sulfate (50mg/kg over 20 minutes) and maintenance (15mg/kg/hr) till the end of surgery.
After the induction of anesthesia, the patients will receive loading intravenous magnesium sulfate (50mg/kg over 20 minutes) and maintenance (15mg/kg/hr) till the end of surgery.
Placebo komparator: control group
The patients will receive the same normal saline volume for loading and maintenance.
The patients will receive the same normal saline volume for loading and maintenance.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
postoperative white blood cell count (WBC)
Tidsramme: inflammatory markers will be measured at 2 time points: 12 and 36 hours after surgery.
Assess effect of intravenous magnesium sulfate on postoperative inflammation by serum inflammatory marker as WBCS.
inflammatory markers will be measured at 2 time points: 12 and 36 hours after surgery.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
postoperative C-reactive protein (CPR)
Tidsramme: during 36 hrs postoperative.CRP will be measured at 2 time points: 12 and 36 hours after surgery.
Effect of intravenous magnesium sulfate on postoperative serum C-reactive protein level.
during 36 hrs postoperative.CRP will be measured at 2 time points: 12 and 36 hours after surgery.
postoperative neutrophil count
Tidsramme: 12 and 36 hours after surgery.
Effect of intravenous magnesium sulfate on postoperative neutrophil count.
12 and 36 hours after surgery.
Time to recovery from anesthesia
Tidsramme: immediately after surgery
time from discontinuation of anesthetic drug administration and completion of the surgical procedure until extubation.
immediately after surgery
Postoperative pain intensity
Tidsramme: During the first 36 hours postoperatively.
Postoperative pain intensity assessed using the visual Analog Scale (VAS).
During the first 36 hours postoperatively.
Time to first postoperative analgesic requirement
Tidsramme: During the first 36 hours postoperatively.
Time from extubation to the first postoperative administration of rescue analgesia.
During the first 36 hours postoperatively.
Cumulative postoperative nalbuphine consumption
Tidsramme: During the first 36 hours postoperatively.
total dose of nalbuphine administered to each patient as postoperative rescue analgesia for 36h.
During the first 36 hours postoperatively.
Postoperative side effects as nausea, vomiting, bradycardia and hypotension
Tidsramme: During the first 36 hours postoperatively.
incidence of Postoperative side effects as nausea, vomiting, bradycardia and hypotension.
During the first 36 hours postoperatively.

Samarbejdspartnere og efterforskere

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Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. marts 2026

Primær færdiggørelse (Anslået)

1. marts 2027

Studieafslutning (Anslået)

1. april 2027

Datoer for studieregistrering

Først indsendt

27. august 2026

Først indsendt, der opfyldte QC-kriterier

2. september 2026

Først opslået (Faktiske)

3. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. september 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • FMASU MD 30/2026

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