Articles: intubation.
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Review Comparative Study
Anatomic accuracy of airway training manikins compared with humans.
Airway simulators, or training manikins, are frequently used in research studies for device development and training purposes. This study was designed to determine the anatomic accuracy of the most frequently used low-fidelity airway training manikins. Computerised tomography scans and ruler measurements were taken of the SynDaver® , Laerdal® and AirSim® manikins. ⋯ All three manikins were visually identifiable as outliers when plotting the first two dimensions from multidimensional scaling. In particular, the airway space between the epiglottis and posterior pharyngeal wall, through which airway devices must pass, was too large in all three manikins. SynDaver, Laerdal and AirSim manikins do not have anatomically correct static dimensions in relation to humans and these inaccuracies may lead to imprecise airway device development, negatively affect training and cause over-confidence in users.
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We examined the association between emergent postoperative tracheal intubation and the use of supraglottic airway devices (SGAs) vs tracheal tubes. ⋯ In patients undergoing procedures under general anaesthesia that could be managed with either SGA or tracheal tube, use of an SGA was associated with lower risk of emergent postoperative intubation. The effect can partly be explained by use of NMBAs. Use of NMBAs in patients with an SGA appears to increase the risk of emergent postoperative intubation.
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Anesthesia and analgesia · Mar 2021
Randomized Controlled Trial Comparative StudyA Comparison of the Required Bronchial Cuff Volume Obtained by 2 Cuff Inflation Methods, Capnogram Waveform-Guided Versus Pressure-Guided: A Prospective Randomized Controlled Study.
Double-lumen endobronchial tubes (DLTs) are used for one-lung ventilation (OLV) during thoracic surgery. Overinflation into the bronchial cuff causes damage to the tracheobronchial mucosa, whereas underinflation leads to an incomplete collapse of the nonventilated lung or incomplete ventilation of the ventilated lung. However, how to determine the appropriate bronchial cuff volume and pressure during OLV is unclear. The objective of this study is to compare the required bronchial cuff volume for lung separation obtained by 2 different cuff inflation methods under closed- and open-chest conditions. ⋯ The lowest cuff volume providing an air-tight bronchial seal was obtained by the capnogram waveform-guided bronchial cuff inflation method. Since the cuff volume required to achieve an air-tight seal decreases after opening the chest, readjustment of the bronchial cuff volume to prevent bronchial cuff damage to the tracheobronchial mucosa after opening the chest may be advisable.
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Semin Cardiothorac Vasc Anesth · Mar 2021
LetterSystematic Application of Rapid Sequence Intubation With Remifentanil During COVID-19 Pandemic.
In this letter, the authors wonder about the need to apply some of the precautions that have been repeatedly suggested during the recent COVID-19 (coronavirus disease 19) pandemic not only to suspected or documented cases of infection but also to all the new cases entering the hospital. In this regard, orotracheal intubation has been universally recognized as a maneuver with a high risk of viral transmission. ⋯ This is performed after the patient reaches a deep analgesic plan, thanks to the unique characteristics of the opioid remifentanil. This type of induction, already tested in vasculopathic patients who underwent carotid surgery, is characterized by great hemodynamic stability and is very advantageous, in the writer's experience, when rapid sequence induction has to be systematically applied to cardiovascular patients, especially if you only want to protect operators.