Relevant bibliographies by topics / Indirect laryngoscopy

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  2. Dissertations / Theses
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Academic literature on the topic 'Indirect laryngoscopy'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Indirect laryngoscopy"

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Yi, In Kyong, Jihoon Hwang, Sang Kee Min, Gang Mee Lim, and Yun Jeong Chae. "Comparison of learning direct laryngoscopy using a McGrath videolaryngoscope as a direct versus indirect laryngoscope: a randomized controlled trial." Journal of International Medical Research 49, no. 5 (May 2021): 030006052110167. http://dx.doi.org/10.1177/03000605211016740.

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Objective Tracheal intubation using a direct laryngoscope is difficult to teach. The McGrath videolaryngoscope, a Macintosh-like device with a camera, can be used as a direct laryngoscope to educate novices under supervision using the screen. We compared the effect on Macintosh laryngoscopy skills following training with a McGrath videolaryngoscope as a direct versus indirect laryngoscope. Methods Thirty-seven participants were randomized into direct and indirect groups according to the training method using a McGrath videolaryngoscope. Participants attempted Macintosh direct laryngoscopy in normal and difficult airway scenarios. The primary endpoint was the intubation time, and the rate of successful intubation, dental trauma, and difficulty were secondary outcomes. Results The intubation time after education decreased significantly in both groups and was significantly shorter in the direct group than in the indirect group across time. The difficulty degree in the direct group was lower than that in the indirect group across time; however, the rate of dental trauma was not significantly different. Conclusion Both direct and indirect laryngoscopy using a McGrath videolaryngoscope improved the performance of Macintosh direct laryngoscopy in novices, while direct laryngoscopy using a McGrath videolaryngoscope demonstrated better educational effects than indirect laryngoscopy. Registered at ClinicalTrials.gov (NCT03471975).
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Korzan, G. J. "Indirect laryngoscopy." Canadian Medical Association Journal 186, no. 5 (March 17, 2014): 372. http://dx.doi.org/10.1503/cmaj.114-0018.

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Viernes, Darwin, Allan J. Goldman, Richard E. Galgon, and Aaron M. Joffe. "Evaluation of the GlideScope Direct: A New Video Laryngoscope for Teaching Direct Laryngoscopy." Anesthesiology Research and Practice 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/820961.

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Background. Teaching direct laryngoscopy is limited by the inability of the instructor to simultaneously view the airway with the laryngoscopist. Our primary aim is to report our initial use of the GlideScope Direct, a video-enabled, Macintosh laryngoscope intended primarily as a training tool in direct laryngoscopy.Methods. The GlideScope Direct was made available to anyone who planned on performing direct laryngoscopy as the primary technique for intubation. Novices were those who had performed <30 intubations.Results. The GlideScope Direct was used 123 times as primarily a direct laryngoscope while the instructor viewed the intubation on the monitor. It was highly successful as a direct laryngoscope (93% success). Salvage by indirect laryngoscopy occurred in 7/9 remaining patients without changing equipment. Novices performed 28 intubations (overall success rate of 79%). In 6 patients, the instructor took over and successfully intubated the patient. Instructors used the video images to guide the operator in 16 (57%) of those patients. Seven different instructors supervised the 28 novices, all of who subjectively felt advantaged by having the laryngoscopic view available.Conclusions. The GlideScope Direct functions similarly to a Macintosh laryngoscope and provides the instructor subjective reassurance, while providing the ability to guide the trainee laryngoscopist.
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Raimann, Florian Jürgen, Philipp Edmund Dietze, Colleen Elizabeth Cuca, Dirk Meininger, Paul Kessler, Christian Byhahn, Daniel Gill-Schuster, Kai Zacharowski, and Haitham Mutlak. "Prospective Trial to Compare Direct and Indirect Laryngoscopy Using C-MAC PM® with Macintosh Blade and D-Blade® in a Simulated Difficult Airway." Emergency Medicine International 2019 (April 1, 2019): 1–8. http://dx.doi.org/10.1155/2019/1067473.

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Objective. Evaluation of C-MAC PM® in combination with a standard Macintosh blade size 3 in direct and indirect laryngoscopy and D-Blade® in indirect laryngoscopy in a simulated difficult airway. Primary outcome was defined as the best view of the glottic structures. Secondary endpoints were subjective evaluation and assessment of the intubation process. Methods. Prospective monocentric, observational study on 48 adult patients without predictors for difficult laryngoscopy/tracheal intubation undergoing orthopedic surgery. Every participant preoperatively received a cervical collar to simulate a difficult airway. Direct and indirect laryngoscopy w/o the BURP maneuver with a standard Macintosh blade and indirect laryngoscopy w/o the BURP maneuver using D-Blade® were performed to evaluate if blade geometry and the BURP maneuver improve the glottic view as measured by the Cormack-Lehane score. Results. Using a C-MAC PM® laryngoscope, D-Blade® yielded improved glottic views compared with the Macintosh blade used with either the direct or indirect technique. Changing from direct laryngoscopy using a Macintosh blade to indirect videolaryngoscopy using C-MAC PM® with D-Blade® improved the Cormack-Lehane score from IIb, III, or IV to I or II in 31 cases. Conclusion. The combination of C-MAC PM® and D-Blade® significantly enhances the view of the glottis compared to direct laryngoscopy with a Macintosh blade in patients with a simulated difficult airway. Trial Registration Number. This trial is registered under number NCT03403946.
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GOLZ, A., S. ZOHAR, S. AVRAHAM, and H. Z. JOACHIMS. "Indirect Microscopic Laryngoscopy." Archives of Otolaryngology - Head and Neck Surgery 115, no. 8 (August 1, 1989): 994. http://dx.doi.org/10.1001/archotol.1989.01860320104031.

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Calhoun, K. H., C. M. Stiernberg, F. B. Quinn, and W. D. Clark. "Teaching Indirect Mirror Laryngoscopy." Otolaryngology–Head and Neck Surgery 100, no. 1 (January 1989): 80–82. http://dx.doi.org/10.1177/019459988910000114.

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Indirect mirror laryngoscopy is difficult to learn. An anatomic model of the oropharynx and larynx is described here. This model is used to familiarize medical students with the component skills of mirror laryngoscopy. The students progress to competency at mirror laryngoscopy on patients more quickly after initial use of this model.
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Sánchez-Morillo, Jorge, María J. Estruch-Pérez, Maria J. Hernández-Cádiz, José M. Tamarit-Conejeros, Lorena Gómez-Diago, and Maite Richart-Aznar. "Indirect Laryngoscopy With Rigid 70-Degree Laryngoscope as a Predictor of Difficult Direct Laryngoscopy." Acta Otorrinolaringologica (English Edition) 63, no. 4 (July 2012): 272–79. http://dx.doi.org/10.1016/j.otoeng.2012.07.003.

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Shulman, G. Brent, Ned G. Nordin, and Neil Roy Connelly. "Teaching with a Video System Improves the Training Period but Not Subsequent Success of Tracheal Intubation with the Bullard Laryngoscope." Anesthesiology 98, no. 3 (March 1, 2003): 615–20. http://dx.doi.org/10.1097/00000542-200303000-00007.

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Background The Bullard laryngoscope is useful for the management of a variety of airway management scenarios. Without the aid of a video system, teaching laryngoscopy skills occurs with indirect feedback to the instructor. The purpose of this study was to determine if use of a video system would speed the process of learning the Bullard laryngoscope or improve the performance (speed or success) of its use. Methods Thirty-six anesthesia providers with no previous Bullard laryngoscope experience were randomly divided into two groups: initial training (first 15 intubations) with looking directly through the eyepiece (n = 20), or with the display of the scope on a video monitor (n = 16). The subjects each then performed 15 Bullard intubations by looking directly through the eyepiece. Results There was not an overall significant difference in laryngoscopy or intubation times between the groups. When only the first 15 intubations were considered, the laryngoscopy time was shorter in the video group (26 +/- 24) than in the nonvideo group (32 +/- 34; P&lt; 0.04). In the first 15 patients, there were fewer single attempts at intubation (67.9% vs 80.3%; P&lt; 0.002) and more failed intubations (17.2% vs 6.0%; P&lt; 0.0001) in the nonvideo group. Conclusions In conclusion, the authors have shown that use of a video camera decreases time for laryngoscopic view and improves success rate when the Bullard laryngoscope is first being taught to experienced clinicians. However, these benefits are not evident as more experience with the Bullard laryngoscope is achieved, such that no difference in skill with the Bullard laryngoscope is discernible after 15 intubations whether a video system was used to teach this technique.
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Pieters, B. M., G. B. Eindhoven, C. Acott, and A. A. J. Van Zundert. "Pioneers of Laryngoscopy: Indirect, Direct and Video Laryngoscopy." Anaesthesia and Intensive Care 43, no. 1_suppl (July 2015): 4–11. http://dx.doi.org/10.1177/0310057x150430s103.

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Yamamoto, Ken, Tsunehisa Tsubokawa, Keizo Shibata, Shigeo Ohmura, Shunichi Nitta, and Tsutomu Kobayashi. "Predicting Difficult Intubation with Indirect Laryngoscopy." Anesthesiology 86, no. 2 (February 1, 1997): 316–21. http://dx.doi.org/10.1097/00000542-199702000-00007.

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Background It is not always possible to predict when tracheal intubation will be difficult or impossible. The authors wanted to determine whether indirect laryngoscopy could identify patients in whom intubation was difficult. Methods Indirect laryngoscopy was done in 2,504 patients. The Wilson risk sum score and the modified Mallampati score were also studied in a different series of 3,680 patients for comparison. These predictive methods were compared according to three parameters: positive predictive value, sensitivity, and specificity. Results Of 6,184 patients studied, the trachea proved difficult to intubate in 82 (1.3%). Positive predictive value (31%) and specificity (98.4%) with indirect laryngoscopy were greater than the other two predictive methods (P &lt; 0.01), whereas sensitivity with indirect laryngoscopy (69.2%) was greater than that of the Wilson risk sum score (55.4%) (P &lt; 0.01). Conclusions Although in 15% of patients indirect laryngoscopy could not be performed because of excessive gag reflex, indirect laryngoscopy can serve as an effective method to predict difficult intubation.
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Dissertations / Theses on the topic "Indirect laryngoscopy"

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Ong, Jiann-Ruey, and 翁健瑞. "Comparing the Performance of Traditional Direct Laryngoscope with Three Indirect Laryngoscopes: A Prospective Manikin Study in Normal and Difficult Airway Scenarios." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/78646618572001588818.

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碩士
國立陽明大學
急重症醫學研究所
99
Objectives: Emergency physicians are quite familiar with intratracheal intubation using conventional direct laryngoscope. Alternative means of intubations using other indirect larynoscopes might be considered in difficult airway conditions. However, most emergency physicians are not familiar with other intubation using other indirect laryngoscopes. We liked to evaluate the performance of intubation using indirect larygonscopes in comparison to traditional direct laryngoscopes in normal airway and difficult airway scenario. Besides, the prerequisite of indirect laryngoscopes that influenced the selection of emergency physicians was explored. Methods: This prospective study recruited 30 emergency physicians familiar with intubation using direct laryngoscope. We evaluated the performance of three indirect laryngoscopes, (1) Truview EVO2TM laryngoscope (TVL - Truphatek International Ltd. Netanya, Israel), (2) Levitan Fiberoptic Stylet (FOS - Clarus Medical, Minneapolis, MN, USA), and (3) Pentax AirwayScope ® (AWS – Hoya Corporation, Tokyo, Japan), in comparison to Macintosh laryngoscope (ML) in intubations in normal and difficult airway scenarios. The primary endpoints were (1) intubation time and (2) rate of failed intubation. The secondary endpoints were (1) glottis visualization, graded by Cormack and Lehane score and (2) ease of intubation, assessed by visual analogue scale (VAS). Intubations were performed on manikin in an order of normal airway scenario and difficult airway scenario. Then the intubations were repeated to evaluate the learning effect of laryngoscopes studied. Results: In normal airway scenario: AWS had shortest intubation time (6.0 sec) followed by ML (8.7 sec); VAS score of ML and AWS was lower (easier to use) than the other two laryngoscopes; Cormack and Lehane score was similar for all larynogsocpes studied. In difficult airway scenario: AWS had shortest intubation time (5.9 sec); VAS score of AWS was lower than the other three laryngoscopes; TVL, FOS, AWS had better Cormack and Lehane score than did ML. Intubation time, rate of failed intubation, and Cormack and Lehane score were similar between two attempts in both scenarios. Ease of intubation was significant in FOS in both scenarios and in TVL in normal airway scenario. Conclusions: AWS appeared to be the best one used in normal and difficult airways scenarios. ML performed better than TVL and FOS in normal airways. Performance of ML, TVL, and FOS were similar in difficult airways. Skills with AWS could be mastered rapidly. TVL and FOS required more practice to gain expertise. AWS might be the first choice used in most airway conditions. TVL and FOS could play a role in difficult airway as a rescue device.
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Arand, Katharina. "Funktionelle Ergebnisse nach indirekt laryngoskopischer Abtragung benigner Befunde der Stimmlippen in Oberflächenanästhesie." Doctoral thesis, 2011. http://hdl.handle.net/11858/00-1735-0000-0006-B1C7-F.

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Books on the topic "Indirect laryngoscopy"

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D, Kendall Katherine M., and Leonard Rebecca, eds. Laryngeal evaluation: Indirect laryngoscopy to high-speed digital imaging. New York: Thieme, 2010.

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Book chapters on the topic "Indirect laryngoscopy"

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Sataloff, Robert, Farhad Chowdhury, Mary Hawkshaw, and Shruti Joglekar. "Indirect Laryngoscopy." In Atlas of Endoscopic Laryngeal Surgery, 18. Jaypee Brothers Medical Publishers (P) Ltd., 2011. http://dx.doi.org/10.5005/jp/books/11200_5.

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Fowler, Grant C., and Carlos A. Dumas. "Indirect Mirror Laryngoscopy." In Pfenninger and Fowler's Procedures for Primary Care, 503–5. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-323-05267-2.00079-0.

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"4 Indirect Laryngoscopy." In Laryngeal Evaluation, edited by Katherine A. Kendall and Rebecca J. Leonard. Stuttgart: Georg Thieme Verlag, 2010. http://dx.doi.org/10.1055/b-0034-81444.

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Sataloff, Robert. "Chapter-05 Indirect Laryngoscopy." In Surgical Techniques in Otolaryngology�Head and Neck Surgery: Laryngeal Surgery, 18–20. Jaypee Brothers Medical Publishers (P) Ltd., 2014. http://dx.doi.org/10.5005/jp/books/12102_5.

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Ballard, Heather, Michelle Tsao, and Narasimhan Jagannathan. "Fiberoptic, Video Laryngoscope, and Nasal Airway Procedures." In Pediatric Anesthesia Procedures, edited by Anna Clebone and Barbara K. Burian, 37–60. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780190685188.003.0003.

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In patients with known or suspected difficult airways, advanced airway procedures such as fiberoptic laryngoscopy (under general anesthesia—with and without supraglottic airways—and sometimes in awake patients) as well as video laryngoscopy are invaluable. All may be particularly advantageous for use with patients who have limited or reduced cervical spine movement. Other advantages and disadvantages are addressed in this chapter. Techniques for nasotracheal intubation are also described. Flexible fiberoptic laryngoscopy is a means of indirectly visualizing airway structures by threading a fiberoptic scope with a camera at the end of the scope into the airway. The goal of fiberoptic laryngoscopy is endotracheal intubation using a Seldinger technique, whereby an endotracheal tube is guided into the trachea over the fiberoptic bronchoscope. Fiberoptic endotracheal intubation may be performed through the mouth or nose, or through a supraglottic airway (SGA). The use of the fiberoptic scope through an SGA is an especially useful technique in infants who suffer from airway obstruction at rest (e.g., infants with Pierre Robin syndrome). Video laryngoscopy employs a laryngoscope with a camera at the end of the blade to enable the user to indirectly visualize airway structures.
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Magee, Patrick, and Mark Tooley. "Aids to Intubation." In The Physics, Clinical Measurement and Equipment of Anaesthetic Practice for the FRCA. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199595150.003.0028.

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This device was invented by Sir Ivan Magill and Sir Robert Macintosh to visualise the vocal cords to aid intubation. The curved blade of the Macintosh laryngoscope is still popular as the standard and its design has been reshaped in recent years to reduce the biomechanical forces on the teeth [Bucx et al. 1997, Bucx et al. 1994]. The straight blade of the Magill laryngoscope can make the view easier under some circumstances, as do modern variants [Henderson 1997]. The handle has a battery and a light source in it, and the light is transmitted by a fibre optic cable to the tip of the blade, which is usually at right angles to the handle. There are many different shaped blades to suit different circumstances, particularly to visualise the anatomically different airway of the neonate. Other variants to aid difficult intubations include the Polio laryngoscope, in which the angle between the handle and the blade is an obtuse one and the McCoy laryngoscope, which has a lever to manipulate the tip of the laryngoscope blade to improve the view of the vocal cords [McCoy et al. 1993]; some of these devices are shown in Figure 24.1. In recent years a new range of laryngoscopes has been introduced with fibre optic systems that allow indirect visualisation of the vocal cords via an eyepiece or a small video screen. These devices clearly improve access to the airway where there would otherwise be a laryngoscopic view with a high Cormack-Lehane score. They currently include the McGrath [Ray et al. 2009], the Glidescope, the Airtraq [Lange et al. 2009] (shown in Figures 24.2(a) and (b)), the C-MAC [McElwain et al. 2010 and others] and testing to date has been on manikins. As with all new devices, their efficacy depends on the skill of the user; one study has demonstrated greater skill with the familiar Macintosh laryngoscope than with the newer ones [Powell et al. 2009]. With the emergence of Jakob–Creutzfeldt disease and the recognition of the infectious risk of prions from tonsillar tissue on laryngoscope blades, a range of disposable paediatric blades has been produced, with variable quality of mechanical flexibility and light quality [Goodwin et al. 2006].
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Craig, Richard. "Anaesthetic equipment." In Paediatric Anaesthesia, 71–100. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780198755791.003.0005.

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This chapter presents anaesthetic equipment used in paediatric anaesthesia. Airway equipment is described in detail with specific examples. This includes a description of the variety of supraglottic airway devices, endotracheal tubes, laryngoscopes for direct and indirect visualization of the larynx, breathing systems, ventilators, and modes of ventilation. Equipment for perioperative monitoring of the paediatric patient is reviewed. Practical advice regarding monitoring neonates and small babies is given particular attention. The use of the bispectral index (BIS) monitor and near-infrared spectroscopy (NIRS) are discussed. New advances in pulse oximetry that enable better monitoring with low perfusion states and motion are included.
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