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Flow-Controlled Versus Volume-Controlled Ventilation During Balloon Dilatation Under Direct Laryngoscopy

RecruitingNAAges 18 Years - 65 YearsAllAnkara Etlik City Hospital
NCT07430124 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This prospective trial aims to compare the effects of flow-controlled ventilation (FCV) and volume-controlled ventilation (VCV) on airway pressures and oxygenation in adult patients undergoing balloon dilatation under direct laryngoscopy. Airway procedures performed under general anesthesia are associated with unique respiratory mechanics and limited ventilation conditions, making the choice of an optimal ventilation strategy particularly important. Adult patients aged 18-65 years with American Society of Anesthesiologists (ASA) physical status I-III will be allocated to receive either FCV or VCV during surgery. Ventilatory parameters, airway pressures, pulmonary compliance, and arterial blood gas values will be recorded at predefined intraoperative time points. The primary outcome is the PaO₂ measured 20 minutes under an FiO₂ of 0.8-1.0 after starting the ventilation under general anes

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📋 Eligibility rules (as published)
Inclusion Criteria: * Age between 18 and 65 years * ASA physical status I-III Exclusion Criteria: * Age \< 18 years or \> 65 years * Known or previously diagnosed pulmonary disease * Patients with severe preoperative pulmonary function impairment (e.g., FEV₁ \< 50% predicted, severe restrictive or obstructive pathology) * Patients with markedly altered lung anatomy or function due to prior major thoracic surgery * Patients who were dependent on supplemental oxygen therapy in the preoperative period * ASA physical status IV or higher * Refusal or inability to provide informed consent
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What it tests

  • FCV Group
  • VCV Group
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Where

1 site
Ankara Etlik City Hospital
Ankara, Turkey (Türkiye)
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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