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Effects of Iloprost on Pulmonary Oxygenation in Obese Patients During One-lung Ventilation

NCT04583046 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 78

Last updated 2025-12-01

No results posted yet for this study

Summary

One lung ventilation (OLV) is essential during thoracic surgery. During OLV, intrapulmonary shunt can be increased resulting hypoxemia. Although OLV technique had been advanced so far, hypoxemia during OLV reaches about 10% in spite of inspired oxygen fraction 100%. Iloprost is a prostaglandin analogue used for pulmonary hypertension, which can decrease pulmonary artery resistance by selectively dilating pulmonary artery. In this prospective, randomized, double blind study, the investigator is planning to investigate the effects of iloprost on respiratory physiology (intrapulmonary shunt, deadspace, oxygenation, etc) in obese patients.

Conditions

  • Lung Cancer (Including Metastatic Cancer)
  • Pulmonary Infection

Interventions

DRUG

normal saline inhalation

When anesthesia induction finishes, change patients' position from supine to lateral position and measure ABGA, VBGA while two lung is ventilated (T0). After 20 minutes of applying one-lung ventilation, measure ABGA and VBGA (T1). Apply normal saline inhalation for control group and measure ABGA at the time of 20 min after normal saline inhalation has finished (T2).

DRUG

iloprost inhalation

When anesthesia induction finishes, change patients' position from supine to lateral position and measure ABGA, VBGA while two lung is ventilated (T0). After 20 minutes of applying one-lung ventilation, measure ABGA and VBGA (T1). Apply iloprost inhalation for iloprost group and measure ABGA at the time of 20 min after iloprost inhalation has finished (T2).

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Principal Investigators

  • Young Jun Oh · Severance Hospital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
40 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-11-02
Primary Completion
2025-09-26
Completion
2025-09-26

Countries

  • South Korea

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04583046 on ClinicalTrials.gov