Effect of Magnesium Sulphate Infusion on Lung Mechanics and Oxygenation in COPD Patients Undergoing Total Laryngeal (COPD)

August 20, 2019 updated by: Abeer Ahmed, MD, Cairo University

Effect of Intravenous Infusion of Magnesium Sulphate on Arterial Oxygenation and Pulmonary Mechanics in Patients With Chronic Obstructive Pulmonary Diseases Undergoing Cancer Larynx Surgery. A Randomized Controlled Trial

Chronic Obstructive Pulmonary Disease [COPD] is a major cause of chronic morbidity and mortality worldwide. COPD is characterized by persistent progressive airflow limitation that adversely affects the ventilation/perfusion (V/Q) matching and mechanics of the respiratory muscles and leads to hypoventilation and reduced gas transfer. COPD was identified as a significant comorbidity associated with increased incidences of postoperative pulmonary complications and prolonged hospital stay. MgSO4 either intravenous or inhalational has been shown to promote bronchodilation and to improve lung function in asthmatic patients. MgSO4 either intravenous or inhalational has been shown to promote bronchodilation and to improve lung function in asthmatic patients. Administration of MgSO4 in patients with stable COPD was associated with reduced lung hyperinflation and improvement of respiratory muscle strength. This randomized control trial is designed to assess the effect of intravenous MgSO4 infusion on oxygenation and pulmonary mechanics and incidence of postoperative pulmonary complications and length of hospital stay in patients with COPD undergoing cancer larynx surgery.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Cairo, Egypt
        • Anesthesia department - Faculty of medicine- Cairo University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients undergoing cancer larynx surgery (partial laryngectomy, total laryngectomy with or without neck dissection).
  • Age more than 40 years old
  • ASA physical status II and III.
  • Diagnosed as having COPD by preoperative spirometry. The classification is bases on the post-bronchodilators forced expiratory volume in the first second (FEV1). Mild COPD is diagnosed when FEV1 is > 80% of predicted while moderate COPD is diagnosed when FEV1 is < 80% and > 50% of predicted and sever COPD is diagnosed when FEV1 is < 50% and > 30% of predicted

Exclusion Criteria:

  • o Patients with heart failure.

    • History with arrhythmias or treatment with antiarrhythmic drugs.
    • Patient with heart block or on beta blockers or calcium channel blockers.
    • Patients with impaired renal function (creatinine > 2)
    • Patients with impaired liver function (ALT more than 2 folds).
    • Patient with combined restrictive and obstructive pulmonary disease.
    • Patients with preoperative tracheostomy.
    • Patients with huge mass obstructing > 50% of the view. (due to its influence on the spirometry measurements).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Mg-group
10% MgSO4 solution will be used, a loading dose of 30mg/kg over 20 min (equivalent to infusion rate of 0.9 ml/kg/hr for 20 min) will be given followed by continuous infusion of 10mg/kg/hr (equivalent to infusion rate of 0.1ml/kg/hr).
intra-operative infusion of of 10% MgSO2 , stating by a laoding dose of 30be used, a loading dose of 30 mg/kg over 20 min followed by continuous infusion of 10 mg/kg/hr accomplish the total laryngectomy.
No Intervention: Control group
In control group, same rates of infusion for loading and maintenance will be applied using 0.9 normal saline.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
lung oxygenation
Time Frame: over a period of 6-8 hours, from the time of induction of general anesthesia until time of patients discharge from the PACU.
PaO2/FiO2 immediately after arrival to the PACU
over a period of 6-8 hours, from the time of induction of general anesthesia until time of patients discharge from the PACU.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 20, 2018

Primary Completion (Actual)

October 20, 2018

Study Completion (Actual)

March 20, 2019

Study Registration Dates

First Submitted

February 20, 2018

First Submitted That Met QC Criteria

March 8, 2018

First Posted (Actual)

March 12, 2018

Study Record Updates

Last Update Posted (Actual)

August 21, 2019

Last Update Submitted That Met QC Criteria

August 20, 2019

Last Verified

August 1, 2019

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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