Continuous ventilation during intubation through a supraglottic airway device guided by fiberoptic bronchoscopy: a observational assessment

Landsdalen, H.; Berge, Morten; Kristensen, F.; Guttormsen, Anne Berit; Søfteland, Eirik

doi:10.1111/aas.12824

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…Obese patients are at higher risk of difficult mask ventilation as well as difficult tracheal intubation [ 28 , 29 ]. Oxygenation is the first priority in the difficult airway management [ 30 ]. In addition, oxygen desaturation is rapidly following the cessation of breathing.…”

Section: Discussionmentioning

confidence: 99%

The optimum sevoflurane concentration for supraglottic airway device Blockbuster™ insertion with spontaneous breathing in obese patients: a prospective observational study

et al. 2017

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BackgroundAirway management of the obese patient presenting for surgery is more likely to be a challenging problem. Supraglottic airway device has been adopted as a bridge to connect ventilation and tracheal intubation in obese patients who would be suffered with difficult intubation. The optimum sevoflurane concentration for supraglottic airway device insertion allowing spontaneous breathing in 50% of obese patients (ED50) is not known. The purpose of this study was to determine the ED50 of sevoflurane for supraglottic airway device Blockbuster™ insertion with spontaneous breathing in obese patients requiring general anesthesia.MethodsThirty elective obese patients (body mass index 30-50 kg/m2) undergoing bariatric surgery were recruited in this study. The predetermined target sevoflurane concentration (initiating at 2.5% with 0.5% as a step size) was sustained for >5 min using a modified Dixon’s up-and-down method, and then the supraglottic airway device Blockbuster™ was inserted. The patient’s response to supraglottic airway device insertion was classified as either ‘movement’ or ‘no-movement’. The ED50 of sevoflurane were determined by calculating the midpoint concentration of crossover point from ‘movement’ or ‘no-movement’ response.ResultsThe ED50 of sevoflurane for supraglottic airway device Blockbuster™ insertion in obese patients calculated using up-and-down method were 2.50 ± 0.60%. The ED50 and ED95 (95% confidence interval) obtained by probit regression analysis were 2.35 (1.28–3.42) % and 4.03 (3.16–17.83) % for supraglottic airway device Blockbuster™ insertion, respectively.ConclusionWe conclude that the optimum end-tidal sevoflurane concentration required for the supraglottic airway device Blockbuster™ insertion allowing spontaneous breathing in 50% of obese patients (ED50) is 2.5 ± 0.6%.Trial registrationChinese Clinical Trial Registry, ChiCTR-IPR-16009071, Registered on 24 August 2016.

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Section: Discussionmentioning

confidence: 99%

The optimum sevoflurane concentration for supraglottic airway device Blockbuster™ insertion with spontaneous breathing in obese patients: a prospective observational study

et al. 2017

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“…Sizes 4 and 5 are the main options described in the literature for use in the adult population. 58 The size 4 i-gel has a 12.3-mm internal diameter and fits a therapeutic bronchoscope (5.9-mm external diameter) or EBUS scope (6.9-mm external diameter) without significantly compromising ventilation. 38 This device will also allow the introduction of a 7.0-mm external diameter ETT in case intubation is needed.…”

Section: Anesthetic Depth and Pharmacologic Considerationsmentioning

confidence: 99%

Anesthesia for interventional pulmonology procedures: a review of advanced diagnostic and therapeutic bronchoscopy

Lima

Kheir

Majid

et al. 2018

Can J Anesth/J Can Anesth

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“…We read with interest Landsdalen et al's paper, 1 which did a simple modificationthe patient could be ventilated during the intubation through a functioning supraglottic airway device (SDA) with the aid of a fiberoptic bronchoscope (FOB). However, there are some limitations of the technique.…”

Section: Sirmentioning

confidence: 99%

Continuous mask ventilation during intubation by fiberoptic bronchoscope

Wang

Liu

Deng

2017

Acta Anaesthesiol Scand

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Continuous ventilation during intubation through a supraglottic airway device guided by fiberoptic bronchoscopy: a observational assessment

Cited by 13 publications

References 19 publications

The optimum sevoflurane concentration for supraglottic airway device Blockbuster™ insertion with spontaneous breathing in obese patients: a prospective observational study

The optimum sevoflurane concentration for supraglottic airway device Blockbuster™ insertion with spontaneous breathing in obese patients: a prospective observational study

Anesthesia for interventional pulmonology procedures: a review of advanced diagnostic and therapeutic bronchoscopy

Continuous mask ventilation during intubation by fiberoptic bronchoscope

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