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Takashi Asai - One of the best experts on this subject based on the ideXlab platform.
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pentax aws videolaryngoscope for awake nasal intubation in patients with unstable necks
BJA: British Journal of Anaesthesia, 2010Co-Authors: Takashi AsaiAbstract:In patients with unstable necks and at risk of pulmonary aspiration, awake fibreoptic intubation is often appropriate. However, stabilization of the neck can make fibreoptic intubation more difficult. I report the use of awake nasal intubation using the Pentax-Aiway Scope (AWS) in three patients with restricted neck movement, in whom awake fibreoptic intubation had failed. Case 1: a 59-yr-old man, at risk of aspiration, required an emergency cervical laminectomy. Awake fibreoptic intubation was attempted while a Halo vest was being applied, but it was impossible to see the glottis, mainly due to pharyngeal and laryngeal oedema. The Pentax-AWS was easily inserted orally, and nasotracheal intubation was achieved within 20 s. Case 2: an 85-yr-old woman with neck injury required emergency surgical stabilization. A retropharyngeal haematoma prevented a fibreoptic bronchoscope from being advanced beyond the epiglottis. Nasotracheal intubation using the Pentax-AWS (with the aid of a gum elastic bougie) was achieved within 1 min. Case 3: a 22-yr-old man, with partial spinal cord damage, was undergoing cervical laminoplasty. He was at risk of aspiration and had an oedematous larynx. Although it was possible to insert a fibreoptic bronchoscope into the trachea while the neck was stabilized with a Halo vest, it was impossible to advance a tube over the fibrescope. Awake nasotracheal intubation using the Pentax-AWS was achieved within 15 s. The Pentax-AWS may be useful for nasotracheal intubation in awake patients with restricted necks.
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tracheal intubation with restricted access a randomised comparison of the pentax airway scope and macintosh laryngoscope in a manikin
Anaesthesia, 2009Co-Authors: Takashi AsaiAbstract:Summary Ten anaesthetists assessed the ease of tracheal intubation (time to see the glottis, to intubate the trachea and to ventilate), using the Pentax Airway Scope and Macintosh laryngoscope in a manikin, in three simulated circumstances of restricted laryngoscopy: (1) the patient lying supine on the ground; (2) the patient lying supine on the ground with the head close to a wall; (3) the patient confined to a car driver’s seat. For the Pentax Airway Scope, intubation was successful (within 2 min) in all three circumstances. For the Macintosh laryngoscope, intubation was successful in all cases in circumstance (1), eight in circumstance (2), and five in circumstance (3). In circumstances (2) and (3), the Pentax Airway Scope needed significantly shorter time to see the vocal cords (median [95% confidence interval] for difference: 4.5 [0.5‐9.5] s in circumstance (2), and 12.5 [7.0‐32.5] s in circumstance (3)), shorter time to intubate (median [95% confidence interval] for difference: 21.0 [5.5‐38.5] s in circumstance (2), and 40.5 [17.5‐64.0] s in circumstance (3)), and shorter time to ventilate the lungs (median [95% confidence interval] for difference: 18. 3 [4.5‐36.0] s in circumstance (2), and 47.5 [16.0‐84.5] s in circumstance (3)). These results indicate that, in situations where access to the patient’s head is restricted, the Pentax Airway Scope is more effective than the Macintosh laryngoscope.
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pentax aws a new videolaryngoscope is more effective than the macintosh laryngoscope for tracheal intubation in patients with restricted neck movements a randomized comparative study
BJA: British Journal of Anaesthesia, 2008Co-Authors: Y Enomoto, Takashi Asai, Takero Arai, Keiichiro Kamishima, Yasuhisa OkudaAbstract:Abstract Background We studied whether laryngoscopy and tracheal intubation were easier when using the Pentax-AWS (Tokyo, Japan), a new videolaryngoscope, than when applying the Macintosh laryngoscope, during manual in-line neck stabilization. Methods In 203 anaesthetized patients with manual in-line neck stabilization, we inserted the Pentax-AWS and a Macintosh laryngoscope, in turn, and recorded the view of the glottis and time taken to laryngoscopy. The success rate of tracheal intubation (within 120 s) and time to intubation were also recorded. Results The view of the glottis was significantly better with the Pentax-AWS than with the Macintosh laryngoscope (P sd ): 6.0 (3.1) s] was significantly shorter than with the Macintosh laryngoscope [11.0 (5.0) s] (95% CI for difference: 4–6 s). The success rate of tracheal intubation with the Pentax-AWS (all of 99 patients) was significantly higher than with the Macintosh laryngoscope (93 of 104 patients) (P=0.001). Time taken for intubation was similar between the Macintosh laryngoscope [51 (27) s] and the Pentax-AWS [54 (14) s] (95% CI for difference: −9 to 3 s). Conclusions In patients with stabilized neck, the Pentax-AWS provided a better view of the glottis and a higher success rate of tracheal intubation, compared with the conventional Macintosh laryngoscope.
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the pentax aws video laryngoscope the first experience in one hundred patients
Anesthesia & Analgesia, 2008Co-Authors: Takashi Asai, Yoshiro Enomoto, Keiko Shimizu, Koh Shingu, Yasuhisa OkudaAbstract:We studied the efficacy of the Pentax-AWS (Tokyo, Japan), a new portable, battery-operated video-laryngoscope, in 100 patients. It was possible to insert the blade of the Pentax-AWS and to see a full view of the glottis on the first attempt in 99 of 100 patients. In the remaining patient, insertion of the Pentax-AWS was abandoned because of a risk of damaging teeth that were already loose. Tracheal intubation was successful in 98 patients. The median time taken for tracheal intubation was 35 s (range, 5-120 s).
V Boudon - One of the best experts on this subject based on the ideXlab platform.
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new investigation of the ν3 c h stretching region of 12ch4 through the analysis of high temperature infrared emission spectra
Journal of Chemical Physics, 2018Co-Authors: Badr Amyay, Aline Gardez, Robert Georges, Ludovic Biennier, Jean Vander Auwera, Cyril Richard, V BoudonAbstract:The ν3 C–H stretching region of methane was reinvestigated in this work using high temperature (620-1715 K) emission spectra recorded in Rennes at Doppler limited resolution. This work follows our recent global analysis of the Dyad system Δn = ±1 (1000–1500 cm−1), with n being the polyad number [B. Amyay et al., J. Chem. Phys. 144, 24312 (2016)]. Thanks to the high temperature, new assignments of vibration-rotation methane line positions have been achieved successfully in the Pentad system and some associated hot bands (Δn = ±2) observed in the spectral region 2600-3300 cm−1. In particular, rotational assignments in the cold band [Pentad-ground state (GS)] and in the first related hot band (Octad-Dyad) were extended up to J = 30 and 27, respectively. In addition, 1525 new transitions belonging to the Tetradecad-Pentad hot band system were assigned for the first time, up to J = 20. The effective global model used to deal with the new assignments was developed to the 6th order for the first three polyads (Monad, Dyad, and Pentad), and to the 5th order for both the Octad and the Tetradecad. 1306 effective parameters were fitted with a dimensionless standard deviation σ = 2.64. The root mean square deviations dRMS obtained are 4.18 × 10−3 cm−1 for the Pentad-GS cold band, 2.48 × 10−3 cm−1 for the Octad-Dyad, and 1.43 × 10−3 cm−1 for the Tetradecad-Pentad hot bands.The ν3 C–H stretching region of methane was reinvestigated in this work using high temperature (620-1715 K) emission spectra recorded in Rennes at Doppler limited resolution. This work follows our recent global analysis of the Dyad system Δn = ±1 (1000–1500 cm−1), with n being the polyad number [B. Amyay et al., J. Chem. Phys. 144, 24312 (2016)]. Thanks to the high temperature, new assignments of vibration-rotation methane line positions have been achieved successfully in the Pentad system and some associated hot bands (Δn = ±2) observed in the spectral region 2600-3300 cm−1. In particular, rotational assignments in the cold band [Pentad-ground state (GS)] and in the first related hot band (Octad-Dyad) were extended up to J = 30 and 27, respectively. In addition, 1525 new transitions belonging to the Tetradecad-Pentad hot band system were assigned for the first time, up to J = 20. ...
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new investigation of the ν3 c h stretching region of 12ch4 through the analysis of high temperature infrared emission spectra
Journal of Chemical Physics, 2018Co-Authors: Badr Amyay, Aline Gardez, Robert Georges, Ludovic Biennier, Jean Vander Auwera, Cyril Richard, V BoudonAbstract:The ν3 C-H stretching region of methane was reinvestigated in this work using high temperature (620-1715 K) emission spectra recorded in Rennes at Doppler limited resolution. This work follows our recent global analysis of the Dyad system Δn = ±1 (1000-1500 cm-1), with n being the polyad number [B. Amyay et al., J. Chem. Phys. 144, 24312 (2016)]. Thanks to the high temperature, new assignments of vibration-rotation methane line positions have been achieved successfully in the Pentad system and some associated hot bands (Δn = ±2) observed in the spectral region 2600-3300 cm-1. In particular, rotational assignments in the cold band [Pentad-ground state (GS)] and in the first related hot band (Octad-Dyad) were extended up to J = 30 and 27, respectively. In addition, 1525 new transitions belonging to the Tetradecad-Pentad hot band system were assigned for the first time, up to J = 20. The effective global model used to deal with the new assignments was developed to the 6th order for the first three polyads (Monad, Dyad, and Pentad), and to the 5th order for both the Octad and the Tetradecad. 1306 effective parameters were fitted with a dimensionless standard deviation σ = 2.64. The root mean square deviations dRMS obtained are 4.18 × 10-3 cm-1 for the Pentad-GS cold band, 2.48 × 10-3 cm-1 for the Octad-Dyad, and 1.43 × 10-3 cm-1 for the Tetradecad-Pentad hot bands.
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global analysis of the high temperature infrared emission spectrum of 12ch4 in the dyad ν2 ν4 region
Journal of Chemical Physics, 2016Co-Authors: Badr Amyay, Robert Georges, Jean Vander Auwera, Maud Louviot, Olivier Pirali, V BoudonAbstract:We report new assignments of vibration-rotation line positions of methane ((12)CH4) in the so-called dyad (ν2/ν4) region (1100-1500 cm(-1)), and the resulting update of the vibration-rotation effective model of methane, previously reported by Nikitin et al. [Phys. Chem. Chem. Phys. 15, 10071 (2013)], up to and including the tetradecad. High resolution (0.01 cm(-1)) emission spectra of methane have been recorded up to about 1400 K using the high-enthalpy source developed at Institut de Physique de Rennes associated with the Fourier transform spectrometer of the SOLEIL synchrotron facility (AILES beamline). Analysis of these spectra allowed extending rotational assignments in the well-known cold band (dyad-ground state (GS)) and related hot bands in the pentad-dyad system (3000 cm(-1)) up to Jmax = 30 and 29, respectively. In addition, 8512 new transitions belonging to the octad-pentad (up to J = 28) and tetradecad-octad (up to J = 21) hot band systems were successfully identified. As a result, the MeCaSDa database of methane was significantly improved. The line positions assigned in this work, together with the information available in the literature, were fitted using 1096 effective parameters with a dimensionless standard deviation σ = 2.09. The root mean square deviations dRMS are 3.60 × 10(-3) cm(-1) for dyad-GS cold band, 4.47 ×10(-3) cm(-1) for the pentad-dyad, 5.43 × 10(-3) cm(-1) for the octad-pentad, and 4.70 × 10(-3) cm(-1) for the tetradecad-octad hot bands. The resulting new line list will contribute to improve opacity and radiative transfer models for hot atmospheres, such as those of hot-Jupiter type exoplanets.
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global analysis of the high resolution infrared spectrum of methane 12ch4 in the region from 0 to 4800 cm 1
Chemical Physics, 2009Co-Authors: Sieghard Albert, V Boudon, S Bauerecker, L R Brown, J P Champion, M Loete, A V Nikitin, Martin QuackAbstract:Abstract We report the global analysis of methane ( 12 CH 4 ) lines from high resolution rovibrational spectra including accurate line positions and intensities in the region 0–4800 cm −1 . This covers four polyads: The Ground State Monad (rotational levels), the Dyad (940–1850 cm −1 , 2 vibrational levels, 2 sublevels), the Pentad (2150–3350 cm −1 , 5 vibrational levels, 9 sublevels) and the Octad (3550–4800 cm −1 , 8 vibrational levels, 24 sublevels) and some of the associated hot bands (Pentad–Dyad and Octad–Dyad). New Fourier transform infrared (FTIR) spectra of the Pentad and Octad regions have been recorded with a very high resolution (better than 0.001 cm −1 instrumental bandwidth, unapodized) at 78 K using the Bruker IFS 125 HR Zurich prototype (ZP2001) spectrometer in combination with a long optical path collisional cooling system [S. Albert, S. Bauerecker, M. Quack, A. Steinlin, Mol. Phys. 105 (2007) 541]. Existing spectra previously recorded with the FTIR spectrometer at the National Solar Observatory on Kitt Peak in Arizona were remeasured selectively to provide new intensities and positions of weaker lines above 4400 cm −1 . These were combined with previously reported absorption data from FTIR and laser absorption, as well as high-resolution stimulated Raman and microwave spectra. The effective hamiltonian was expanded up to order 6 for the Ground State, order 6 for the Dyad, order 5 for the Pentad and order 5 for the Octad. A total of 16,738 line positions were used in the least squares adjustment characterized by the following global root mean square deviations d RMS for line positions: 1.3 × 10 −4 cm −1 for the Dyad, 6.0 × 10 −4 cm −1 for the Pentad, and 3.5 × 10 −3 cm −1 for the Octad. Absolute intensities were also analyzed for all the cold bands and some of the hot bands in the region under consideration and we obtained d RMS = 9.6% including 3262 experimental line intensities for the Octad. This analysis represents a large improvement over the previous one [J.-C. Hilico, O. Robert, M. Loete, S. Toumi, A.S. Pine, L.R. Brown, J. Mol. Spectrosc. 208 (2001) 1] with d RMS = 0.041 cm −1 for positions and 15.6 % for intensities in the Octad for a smaller data set. The new results are discussed as benchmarks in relation to accurate potential energy hypersurfaces and for atmospheric and planetary spectra.
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global analysis of the high resolution infrared spectrum of methane 12ch4 in the region from 0 to 4800 cm 1
Chemical Physics, 2009Co-Authors: Sieghard Albert, V Boudon, S Bauerecker, L R Brown, J P Champion, M Loete, A V Nikitin, Martin QuackAbstract:Abstract We report the global analysis of methane ( 12 CH 4 ) lines from high resolution rovibrational spectra including accurate line positions and intensities in the region 0–4800 cm −1 . This covers four polyads: The Ground State Monad (rotational levels), the Dyad (940–1850 cm −1 , 2 vibrational levels, 2 sublevels), the Pentad (2150–3350 cm −1 , 5 vibrational levels, 9 sublevels) and the Octad (3550–4800 cm −1 , 8 vibrational levels, 24 sublevels) and some of the associated hot bands (Pentad–Dyad and Octad–Dyad). New Fourier transform infrared (FTIR) spectra of the Pentad and Octad regions have been recorded with a very high resolution (better than 0.001 cm −1 instrumental bandwidth, unapodized) at 78 K using the Bruker IFS 125 HR Zurich prototype (ZP2001) spectrometer in combination with a long optical path collisional cooling system [S. Albert, S. Bauerecker, M. Quack, A. Steinlin, Mol. Phys. 105 (2007) 541]. Existing spectra previously recorded with the FTIR spectrometer at the National Solar Observatory on Kitt Peak in Arizona were remeasured selectively to provide new intensities and positions of weaker lines above 4400 cm −1 . These were combined with previously reported absorption data from FTIR and laser absorption, as well as high-resolution stimulated Raman and microwave spectra. The effective hamiltonian was expanded up to order 6 for the Ground State, order 6 for the Dyad, order 5 for the Pentad and order 5 for the Octad. A total of 16,738 line positions were used in the least squares adjustment characterized by the following global root mean square deviations d RMS for line positions: 1.3 × 10 −4 cm −1 for the Dyad, 6.0 × 10 −4 cm −1 for the Pentad, and 3.5 × 10 −3 cm −1 for the Octad. Absolute intensities were also analyzed for all the cold bands and some of the hot bands in the region under consideration and we obtained d RMS = 9.6% including 3262 experimental line intensities for the Octad. This analysis represents a large improvement over the previous one [J.-C. Hilico, O. Robert, M. Loete, S. Toumi, A.S. Pine, L.R. Brown, J. Mol. Spectrosc. 208 (2001) 1] with d RMS = 0.041 cm −1 for positions and 15.6 % for intensities in the Octad for a smaller data set. The new results are discussed as benchmarks in relation to accurate potential energy hypersurfaces and for atmospheric and planetary spectra.
Yasuhisa Okuda - One of the best experts on this subject based on the ideXlab platform.
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pentax aws a new videolaryngoscope is more effective than the macintosh laryngoscope for tracheal intubation in patients with restricted neck movements a randomized comparative study
BJA: British Journal of Anaesthesia, 2008Co-Authors: Y Enomoto, Takashi Asai, Takero Arai, Keiichiro Kamishima, Yasuhisa OkudaAbstract:Abstract Background We studied whether laryngoscopy and tracheal intubation were easier when using the Pentax-AWS (Tokyo, Japan), a new videolaryngoscope, than when applying the Macintosh laryngoscope, during manual in-line neck stabilization. Methods In 203 anaesthetized patients with manual in-line neck stabilization, we inserted the Pentax-AWS and a Macintosh laryngoscope, in turn, and recorded the view of the glottis and time taken to laryngoscopy. The success rate of tracheal intubation (within 120 s) and time to intubation were also recorded. Results The view of the glottis was significantly better with the Pentax-AWS than with the Macintosh laryngoscope (P sd ): 6.0 (3.1) s] was significantly shorter than with the Macintosh laryngoscope [11.0 (5.0) s] (95% CI for difference: 4–6 s). The success rate of tracheal intubation with the Pentax-AWS (all of 99 patients) was significantly higher than with the Macintosh laryngoscope (93 of 104 patients) (P=0.001). Time taken for intubation was similar between the Macintosh laryngoscope [51 (27) s] and the Pentax-AWS [54 (14) s] (95% CI for difference: −9 to 3 s). Conclusions In patients with stabilized neck, the Pentax-AWS provided a better view of the glottis and a higher success rate of tracheal intubation, compared with the conventional Macintosh laryngoscope.
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the pentax aws video laryngoscope the first experience in one hundred patients
Anesthesia & Analgesia, 2008Co-Authors: Takashi Asai, Yoshiro Enomoto, Keiko Shimizu, Koh Shingu, Yasuhisa OkudaAbstract:We studied the efficacy of the Pentax-AWS (Tokyo, Japan), a new portable, battery-operated video-laryngoscope, in 100 patients. It was possible to insert the blade of the Pentax-AWS and to see a full view of the glottis on the first attempt in 99 of 100 patients. In the remaining patient, insertion of the Pentax-AWS was abandoned because of a risk of damaging teeth that were already loose. Tracheal intubation was successful in 98 patients. The median time taken for tracheal intubation was 35 s (range, 5-120 s).
Hiroshi Iwasaki - One of the best experts on this subject based on the ideXlab platform.
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Displacement of the epiglottis during intubation with the Pentax-AWS Airway Scope
Journal of Anesthesia, 2009Co-Authors: Akihiro Suzuki, Norifumi Katsumi, Takashi Honda, Tomoki Sasakawa, Takayuki Kunisawa, John J. Henderson, Hiroshi IwasakiAbstract:The Pentax-AWS system is a rigid indirect video laryngoscope with integrated tube guidance. Complications associated with this device are not well understood. We report two cases of epiglottis malposition during intubation with the Pentax-AWS. The standard technique of using the Pentax-AWS system involves direct elevation of the epiglottis for exposure of the vocal cords. The blade tip should be passed posterior to the epiglottis for laryngeal exposure, but pressure on the anterior surface of the epiglottis by the tip can rarely happen even during the correct maneuver. Although the Pentax-AWS provides clear images of the airway structures, it is sometimes difficult to observe the epiglottis continuously because the camera is located beneath the blade tip. Consequently, the view of the epiglottis from the camera may be impeded by the blade tip and may result in undiagnosed epiglottis malposition. The AWS’s structural feature and its approach to the larynx can be associated with increased chance of unexpected epiglottis folding. It is particularly important to confirm normal position of the epiglottis during withdrawal of the device to prevent this complication.
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pentax aws airway scope as an alternative for awake flexible fiberoptic intubation of a morbidly obese patient in the semi sitting position
Journal of Anesthesia, 2009Co-Authors: Akihiro Suzuki, Tomoki Sasakawa, John J. Henderson, Motoi Terao, Kei Aizawa, Hiroshi IwasakiAbstract:For anesthesia induction in a morbidly obese patient with a full stomach, awake flexible fiberoptic bronchoscope (FOB) intubation in the semi-sitting position may be a suitable choice. A new rigid indirect videolaryngoscope, the Pentax-AWS system, has a unique feature of an adjustable built-in monitor and is designed to be used in patients in various positions. However, the efficacy of its use in such situations has not been investigated or reported. We used the Pentax-AWS system for the intubation of a morbidly obese patient (body mass index >50) who was at risk of regurgitation, anticipated difficult intubation, and supine hypotensive syndrome due to inferior vena cava compression by a huge ovarian cyst. The patient was placed in the sitting position during the intubation procedure. The patient’s trachea was intubated with the Pentax-AWS by an anesthesiologist positioned at the patient’s right and facing her. The Pentax-AWS offered easy intubation under good visualization of the glottic aperture as a consequence of its adjustable integrated monitor, in contrast to difficult intubation with other videolaryngoscopes which require an external monitor. This report illustrates that the Pentax-AWS is useful as an alternative for flexible fiberoptic intubation under these circumstances, as a consequence of its adjustable built-in monitor and integrated tube channel.
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the pentax aws rigid indirect video laryngoscope clinical assessment of performance in 320 cases
Anaesthesia, 2008Co-Authors: Akihiro Suzuki, Norifumi Katsumi, Takayuki Kunisawa, John J. Henderson, Yuki Toyama, Rika Sasaki, Koki Hirota, Hiroshi IwasakiAbstract:Summary The Pentax-AWS® airway scope system is a rigid indirect video laryngoscope with integrated tube guidance. Laryngoscopy and intubation are visualised using a built in LCD monitor which displays the view obtained by a CCD camera mounted in the tip of the laryngoscope. We describe its clinical performance in 320 patients. The Pentax-AWS significantly improved the laryngeal view compared to the Macintosh laryngoscope. Forty-six patients (14%) who were classified as Cormack Lehane glottic view grade 3 or 4 using the Macintosh laryngoscope were classified as grade 1 (45 cases) or 2a (1 case) using the Pentax-AWS airway scope. Laryngeal views measured by percentage of glottic opening score were improved significantly using the Pentax-AWS. Intubation using the Pentax-AWS was successful in all cases, 96% at the first and 4% at the second attempt. The mean (SD) time required to place the tracheal tube was 20 (10) s. The Cormack Lehane grade obtained with the Macintosh blade did not affect the total time to correctly position the tube using the Pentax-AWS. Intubation difficulty scale (score = 0 in 305 patients, score = 1 in 14 and score = 2 in one patient) indicates that tracheal intubation was performed easily in most cases. The Pentax-AWS not only improves the laryngeal view, but its tube guide also facilitates rapid, easy and reliable tracheal intubation under vision. It can be useful in routine anesthesia care and may be advantageous in the situation of unanticipated difficult intubation.
Sang Kuk Han - One of the best experts on this subject based on the ideXlab platform.
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tracheal intubation during chest compressions using pentax aws glidescope and macintosh laryngoscope a randomized crossover trial using a mannequin
Canadian Journal of Anaesthesia-journal Canadien D Anesthesie, 2011Co-Authors: Dong Hyuk Shin, Pil Cho Choi, Sang Kuk HanAbstract:Background A randomized crossover trial was conducted to compare the performance of two videolaryngoscopes (Pentax-AWS®, GlideScope®) with the Macintosh laryngoscope for tracheal intubation during continuous chest compressions on a mannequin.
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utility of the pentax aws without interruption of chest compression comparison of the macintosh laryngoscope with the pentax aws in manikin model
Resuscitation, 2010Co-Authors: Sang Kuk Han, Dong Hyuk Shin, Pil Cho ChoiAbstract:Background Emergency airway management in suboptimal conditions can result in difficulties in tracheal intubation. The video laryngoscope (Pentax-AWS®) has potential advantages during difficult tracheal intubations. According to the 2005 guidelines for cardiopulmonary resuscitation (CPR), all rescuers should minimize interruption of chest compressions. Our hypothesis is that tracheal intubation using the Pentax-AWS® is possible without interruption of chest compressions. We tested this using tracheal intubation performed by less experienced medical personnel in a manikin model. Methods Thirty-two less experienced (<10 tracheal intubations) medical interns performed intubation using the Pentax-AWS® and the Macintosh laryngoscope in an ALS simulator (Laerdal, Stavanger, Norway) in each of three scenarios. The three scenarios were: (1) normal airway without chest compression, (2) normal airway with continuous chest compression, and (3) difficult airway with continuous chest compression. The success rate, time required to complete tracheal intubation and to visualize vocal cords, POGO (percentage of glottic opening) score, dental compression and the ease of intubation were recorded. Results All participants performed successful intubation with the Pentax-AWS® in the three scenarios. In the two continuous chest compression scenarios (scenarios 2 and 3), the success rate was significantly higher with the Pentax-AWS® than with the Macintosh laryngoscope. Conclusions The Pentax-AWS® was an effective tool for endotracheal intubation during chest compression performed by less experienced medical personnel in a manikin model simulating cardiac arrest, both under conditions of normal and difficult airways.