Effects of Magnesium Sulfate on Oxygenation and Lung Mechanics During One-Lung Ventilation

NCT ID: NCT07325773

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

104 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-12-01

Study Completion Date

2026-11-28

Brief Summary

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This prospective observational study aims to evaluate the effects of intravenous magnesium sulfate on intraoperative oxygenation and lung mechanics in patients undergoing thoracic surgery with one-lung ventilation. Magnesium sulfate has been reported to have potential bronchodilatory and anti-inflammatory properties, which may improve gas exchange and respiratory mechanics during lung isolation.

In this study, patients who receive magnesium sulfate as part of standard anesthetic management will be compared with those who do not receive the drug. Oxygenation parameters, dynamic and static lung mechanics, airway pressures, and ventilation-related indices will be recorded throughout the intraoperative period. The findings of this study may help clarify whether magnesium sulfate provides measurable respiratory benefits during one-lung ventilation.

Detailed Description

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Conditions

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Intraoperative Oxygenation and Pulmonary Mechanics

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Group 1 - Magnesium Sulfate Group Label: Magnesium Sulfate Group

Patients receiving intravenous magnesium sulfate during the surgery as part of standard anesthetic management.

No interventions assigned to this group

Group 2 - Control Group Label: Control Group

Patients undergoing one-lung ventilation without the administration of magnesium sulfate

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Adults aged 18 to 80 years Scheduled for elective thoracic surgery performed with video-assisted thoracoscopic surgery (VATS) requiring one-lung ventilation under general anesthesia.

ASA physical status II-III Ability to provide informed consent Undergoing general anesthesia with double-lumen tube placement

Exclusion Criteria

* Patients undergoing pneumonectomy
* Patients with renal, hepatic, or cardiovascular failure
* Patients with a BMI \< 15 kg/m² or \> 35 kg/m²
* Patients with a preoperative pulmonary function test showing FEV₁ \< 1.5 liters
* Patients who are transferred to the intensive care unit intubated in the postoperative period
* Patients with physical or mental conditions that prevent the performance of pulmonary function testing factors
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Marmara University

OTHER

Sponsor Role lead

Responsible Party

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Meliha Orhon

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Meliha ORHON ERGÜN

Role: STUDY_CHAIR

Marmara University Faculty of Medicine, Department of Anesthesiology and Reanimation

İlayda AKARSU KAYA

Role: PRINCIPAL_INVESTIGATOR

Marmara University Faculty of Medicine, Department of Anesthesiology and Reanimation

Locations

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Marmara University Faculty of Medicine, Basibuyuk Campus

Istanbul, , Turkey (Türkiye)

Site Status RECRUITING

Countries

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Turkey (Türkiye)

Central Contacts

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İlayda AKARSU KAYA, Anesthesiology Resident, Principal Investigator

Role: CONTACT

+905073306901

Meliha ORHON ERGÜN

Role: CONTACT

+905413402001

Facility Contacts

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İlayda AKARSU KAYA, Anesthesiology Resident, Principal Investigator

Role: primary

+905073306901

Other Identifiers

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09.2025.463

Identifier Type: -

Identifier Source: org_study_id

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