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Effect of a Driving Pressure Adjustment Procedure for High-Frequency Jet Ventilation in Patients Undergoing Tumor Thermal Ablation in Interventional Radiology

Sponsor: Nantes University Hospital • ClinicalTrials.gov ID: NCT07408375

Registry updated: 2026-10-19

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Description

Tumor thermal ablation under Jet Ventilation is a procedure performed under general anesthesia that enables tumor ablation under radiological imaging guidance. This procedure, being less invasive than conventional surgery, allows for a faster recovery and hospital discharge. This procedure requires significant precision to ensure the most complete destruction of the tumor, while also preserving adjacent organs. During general anesthesia, respiratory movements complicate radiological localization and tumor destruction. The principle of High-Frequency Jet Ventilation (HFJV) involves using a device that ventilates a small volume of air and oxygen at a specific pressure, called driving pressure, at a high frequency. This ventilation mode reduces respiratory movements while ensuring continuous ventilation and oxygenation. This respiratory stability allows for the precision necessary to superimpose images for tumor localization and destruction. There are no guidelines regarding the driving pressure setting for HFJV for tumor thermal ablation. The method tested in this research is based on patient's height to optimize the driving pressure when using HFV. The main objective of this research is to evaluate the impact of driving pressure settings, on respiratory function, taking into account patient's height. On the day of the procedure, the driving pressure setting for the HFJV will be randomly assigned (1.4 bars, 1.9 bars, 2.4 bars, or customized according to the patient's height) (1 bar = 14 psi). The research will be conducted using medical data collected during routine patient care. Patient participation will last for the duration of their hospital stay, approximately two days.

Interventions

High-Frequency Jet Ventilation (HFJV) (Procedure)
High-Frequency Jet Ventilation (HFJV) involves ventilating with a small tidal volume of gas at a high frequency, ensuring diaphragmatic stability. This stability allows for the precise superimposition of localization and puncture images. HFJV is defined as a ventilation mode with very high insufflation rates (120 to 200 cycles per minute) delivering a low tidal volume through a catheter with a gauge of 13G to 16G.

Eligibility criteria

Inclusion Criteria: * Age ≥ 18 years. * Patient undergoing thermal ablation of a solid tumor under HFJV. * Patient who has given their consent. * Patient covered by a social security scheme. Exclusion Criteria: * Patient under guardianship or curatorship. * Patient who does not understand French. * Pregnant and breastfeeding woman * Patient who has had a pneumonectomy * Patient requiring an endotracheal tube smaller than 6.5

Conditions

Solid Tumor (Excluding CNS)

Locations

CHU de Lyon — Lyon, France
CHU de Nantes — Nantes, France
CHU de Nîmes — Nîmes, France
Hôpital Européen Georges Pompidou (HEGP) — Paris, France
CHU de Poitiers — Poitiers, France
ICO Unicancer — Saint-Herblain, France
Institut Gustave Roussy — Villejuif, France

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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