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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Supraglottic jet oxygenation and ventilation for obese patients under intravenous anesthesia during hysteroscopy: a randomized controlled clinical trial

Fig. 2

(1) The scene of supraglottic jet oxygenation and ventilation (SJOV) via WNJ with or without spontaneous breathing. SJOV could maintain oxygen saturation and carbon dioxide exhalation. PETCO2 = End-tidal carbon dioxide partial pressure; SpO2 = pulse oxygen saturation;DP = driving pressure;RR = respiratory rate; I/E ratio = inhalation/exhalation ratio. (2) Wei Nasal Jet tube (WNJ), which has two channels built inside the tube wall for jet ventilation and the end-tidal pressure of CO2 monitoring, respectively. FVD = fixed valve of depth. (3) The position of the WNJ into the laryngopharynx observed by nasal fiberoptic scope. The depth of placement of the WNJ was about equivalent to the distance from the alar to the ipsilateral earlobe. The best site for WNJ insertion under fiber bronchoscope was between the epiglottis and uvula

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BMC Anesthesiology

ISSN: 1471-2253

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