Seguras LO

Language: Spanish
References: 17
Page: 1-11
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ABSTRACT

Introduction: Ventilation to the patient during microlaryngeal surgery confronts several problems. Jet ventilation with conventional ventilatory frequencies allows the use of small diameter endotracheal catheters to provide adequate oxygen volumes and provide better operating conditions than the traditional method.
Objective: To evaluate the safety and effectiveness of jet ventilation with conventional ventilatory frequencies for elective microlaryngeal surgery in comparison to conventional ventilation.
Methods: A comparative, single-blind, randomized and parallel study was performed. It was used a prototype of jet ventilation device with an exceptional use permit in humans (exceptional authorization No: 004/17 for conducting a pilot study, dated August 2, 2017, conferred by the CECMED). A study group of 45 patients (group E) was used and compared with a control group (group C) of 15 patients using the traditional ventilation method.
Results: Oxygenation was higher in group E. Group C eventually required extubation, transitory apnea and reintubation, which impacted against the anatomophysiological integrity of patients, the operative field and teaching. A greater hemodynamic stability was evident among the subjects of group E. The intrapulmonary pressures produced by jet ventilation did not cause obvious injuries or clinical repercussions.
Conclusions: Applying jet ventilation with conventional ventilatory frequencies was safe and effective. For the first time, experiences of using a jet ventilation method in the country were obtained. The group in which conventional ventilation was applied suffered more frequent and dangerous complications. It is necessary to assimilate jet ventilation´s technologies to raise the quality of medical attention in times of peace, war or disasters, in elective or emerging contexts as the challenge of a difficult airway.

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