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Related Experiment Video

Updated: Jan 16, 2026

Author Spotlight: High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution
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Cell-Free Circulating Mitochondrial DNA Levels Following High-Frequency Jet Ventilation-A Post Hoc Analysis.

Marita Windpassinger1,2, Michal Prusak1, Kurt Ruetzler2,3

  • 1Department of Anesthesia, Critical Care and Pain Medicine, Division of General Anesthesia and Intensive Care Medicine, Medical University of Vienna, 1090 Vienna, Austria.

Journal of Clinical Medicine
|September 27, 2025
PubMed
Summary
This summary is machine-generated.

High-frequency jet ventilation led to a significant decrease in circulating mitochondrial DNA (mtDNA) levels, contrary to expectations. This suggests jet ventilation may cause less mitochondrial stress than anticipated.

Keywords:
anesthesiacell-free circulating mitochondrial DNAhigh-frequency jet ventilationoxidative stress

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Area of Science:

  • Anesthesiology
  • Critical Care Medicine
  • Molecular Biology

Background:

  • Mitochondrial DNA (mtDNA) release into circulation indicates cellular injury, potentially serving as a biomarker during mechanical ventilation.
  • High-frequency jet ventilation (HFJV) is an open-airway technique with unclear effects on mitochondrial stress.
  • This study investigated HFJV's impact on circulating mtDNA levels and potential correlations with ventilation parameters.

Purpose of the Study:

  • To determine if high-frequency jet ventilation (HFJV) increases circulating mitochondrial DNA (mtDNA) levels.
  • To explore the relationship between mtDNA changes, ventilation duration, and arterial oxygenation.
  • To assess HFJV's potential for inducing mitochondrial stress.

Main Methods:

  • Plasma cell-free circulating mitochondrial DNA (mtDNA) was measured in 30 patients before and after HFJV during laryngotracheal surgery.
  • Data were analyzed from a post hoc analysis of a monocentric, randomized cross-over study.
  • Ventilation distribution in HFJV was investigated.

Main Results:

  • Circulating mtDNA levels significantly decreased post-HFJV (median T0: 13.57 vs. T1: 6.78, p = 0.0087).
  • No significant associations were found between mtDNA change and ventilation duration, surgery type, or ASA classification.
  • Arterial partial pressure of oxygen increased significantly during HFJV despite variable air entrainment.

Conclusions:

  • High-frequency jet ventilation was associated with a significant reduction in circulating mtDNA levels.
  • This finding contradicts the hypothesis that HFJV induces mitochondrial stress.
  • Results suggest HFJV may exert less mitochondrial damage than previously assumed.