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Tubeless translaryngeal superimposed jet ventilation

Summary

Microsurgical endoscopic interventions of the larynx offer an optimal approach to the surgeon by providing an unrestricted operative field. During such operations, ventilating the patient should in no way be impaired. For this reason we have developed a new type of tubeless jet ventilation which consists of both low-frequency and superimposed high-frequency jet ventilation. In addition, we have integrated two specifically sized jets into a Kleinsasser laryngoscope, placing them at different sites. This technique guarantees adequate ventilation with an oxygen-air blend. Due to the Venturi effect, air and tidal volumes are also enhanced when passing through the external open end of the laryngoscope. This type of tubeless jet ventilation was applied to more than 60 patients, using a prototype jet. Anesthesia consisted of a continuous intravenous administration of propofol, with sufentanil and vecuronium given as needed. Clinical results revealed optimal ventilation of all patients without hypercapnia or other complications. Operative conditions for the surgeon were also very satisfactory. Findings demonstrated that this type of tubeless jet ventilation is also particularly suited for laryngeal laser surgery, thus avoiding flammable tubes and noxious anesthetics.

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Correspondence to A. Aloy.

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Aloy, A., Schachner, M. & Caucura, W. Tubeless translaryngeal superimposed jet ventilation. Eur Arch Otorhinolaryngol 248, 475–478 (1991). https://doi.org/10.1007/BF00627637

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Key words

  • Microlaryngeal surgery
  • Anesthesia
  • High-frequency tubeless jet ventilation
  • Venturi effect