Low Pressure Low Frequency Jet Ventilation: Techniques, Safety and Complications

Myint, Calvin W.; Teng, Stephanie; Butler, Jennifer; Griffeth, Jacline V.; Fritz, Mark; Meiler, Steffen E.; Postma, Gregory N.

doi:10.1177/00034894211072630

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…Low-pressure low-frequency jet ventilation (LPLFJV) is a safe, tubeless airway technique. It is occasionally used for airway surgery as a rescue technique in "cannot intubate-cannot ventilate" situations (2,3). LPLFJV is usually applied at the supraglottic level, thereby providing proper airway support with a lower risk of airway re and less hypercapnia than high-frequency jet ventilation (HFJV) (3,4).…”

Section: Introductionmentioning

confidence: 99%

Comparison of the learning outcomes achieved through text-based and video-based online training of anesthesia residents in jet ventilation and anesthesia techniques for microlaryngeal surgery: a multicenter randomized trial

Kanavitoon

Chumpathong

Chutipongtanate

et al. 2023

Preprint

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Background Effective clinical training is essential for healthcare personnel with clinical skill requirements to ensure that the required standard of care is provided. This study aimed to identify an effective learning medium for anesthesia residents by comparing text-based and video-based online training. Methods This randomized, multicenter study was conducted online between October 2020 and March 2021. Three Thai institutions were involved: the Faculty of Medicine Siriraj Hospital, Mahidol University; the Faculty of Medicine, Ramathibodi Hospital, Mahidol University; and the Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University. In all, 126 anesthesia residents responded. They were randomized into a “text group” and a “video group.” Four residents were subsequently excluded from the analyses due to contamination of their learning material from the other group. The 122 eligible students undertook 3 knowledge and skill assessments (“Pretest,” “Posttest 1,” and “Posttest 2”). The primary outcome for both study groups was the gain score after training. This was measured in 2 ways: the difference between the Posttest 1 and Pretest scores and the difference between the Posttest 2 and Pretest scores. Results The mean gain scores for Pretest and Posttest 1 were 6.78 ± 6.59 for the text group and 5.77 ± 3.74 for the video group, with no significant difference (P = 0.347). The mean differences between the Posttest 2 and Pretest scores were 4.69 ± 9.13 for the text group and 3.47 ± 9.07 for the video group, without a significant difference (P = 0.488). The mean satisfaction score of the video group was significantly higher. Conclusions This study demonstrated a significantly higher degree of satisfaction with video-based training but without a significant commensurate improvement in gain score. The results suggest that the online video technique can be helpful in the teaching of clinical skills.

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Section: Introductionmentioning

confidence: 99%

Comparison of the learning outcomes achieved through text-based and video-based online training of anesthesia residents in jet ventilation and anesthesia techniques for microlaryngeal surgery: a multicenter randomized trial

Kanavitoon

Chumpathong

Chutipongtanate

et al. 2023

Preprint

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“…Jet ventilation primarily operates in two modes: high‐frequency and low‐frequency. Both modes utilize small jets of gas derived from high‐pressure sources with the delivery of these jets controlled through either manual or electronic pneumatic flow interruption devices 7–9 …”

Section: Introductionmentioning

confidence: 99%

“…Both modes utilize small jets of gas derived from high-pressure sources with the delivery of these jets controlled through either manual or electronic pneumatic flow interruption devices. [7][8][9] Laryngotracheal stenosis presents a challenge for patients undergoing procedures requiring jet ventilation. This condition can result from congenital anomalies, complications from prolonged intubation, or trauma.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Tracheal Stenosis on Distal Airway Pressure with Jet Ventilation

Gottman,

Corbisiero,

Sus

et al. 2023

The Laryngoscope

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ObjectiveThis study investigates the effects of tracheal stenosis on distal airway pressure during low‐frequency jet ventilation (LFJV) in tracheal stenosis resection procedures, focusing on variables like stenosis size, depth, scope type, and inlet pressure.MethodsA 3D‐printed human airway model was employed, featuring inserted tracheal stenoses of varied sizes and depths. Distal airway pressure was measured with 16 pressure transducers, and data were processed via MATLAB. The study varied stenosis size, depth, scope type, and inlet pressure during five sequential jet bursts under LFJV.ResultsUsing a subglottiscope resulted in significantly reduced distal airway pressure compared to a laryngoscope. Interestingly, neither stenosis size nor depth significantly influenced distal airway pressure. However, increased distance between the scope and stenosis raised normalized pressure. A linear rise in normalized distal airway pressure was noted with increased inlet pressure, regardless of stenosis dimensions.ConclusionIn this model, scope type and inlet pressure were noted to be significant determinants of distal airway pressure, while stenosis size and depth were not. The distance between the scope and the stenosis did influence distal pressures. These findings may have clinical implications for managing airway pressures in patients undergoing LFJV, potentially reducing the risk of ventilator‐induced lung injury.Level of EvidenceNA (Basic Research) Laryngoscope, 2023

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