Comparison of the Skill of Emergency Medical Technicians in Terms of Advanced Airway Management Using Endotracheal Tube vs Laryngeal Mask Airway in an OSCE Using a Mannequin

Background: Supraglottic airway management tools such as the laryngeal mask airway (LMA) have recently emerged as the first choice in pre-hospital and hospital airway management guidelines as well as an alternative strategy after endotracheal tube (ETT) placement failure. However, the pros and cons of the LMA compared to endotracheal intubation are still debated. Given that no study has been conducted to date on the skills of emergency medical technician (EMT) in airway management using LMA compared to endotracheal intubation, we decided to do a study in this regard. Methods: In this objective structured clinical examination (OSCE), EMTs who had a degree of associate or bachelor were participated. The examiner asked the examinees the required information and entered it in the pre-prepared checklists. The participants took part in a two-stage exam. In the first stage, the airway management of the simulated trauma patient was performed by endotracheal intubation, and in the second stage, the same scenario was performed with LMA. At each stage, the examiner evaluated the examinee's performance in 4 fields of Preparation, Pre-oxygenation, Position and Placement, and Post-intubation management using a standard checklist. In addition, the duration of the procedure from the beginning to the time of fixing the ETT or LMA was recorded and compared. Results: Totally, 105 EMTs participated in this study, of whom, 102 were male (97.1%). The mean age of the subjects was 36.4± 7.3 years old. Of the total participants, 72 passed both practical exams successfully, and they generally insert the LMA faster; so that the duration of intubation and LMA insertion in 1.4% and 30.6% were <1 min, respectively (p< 0.001). However, no significant difference was observed in terms of the mean time (p= 0.427). Conclusion: In the present study, the skills of the technicians participating in the study in performing advanced airway procedures were moderate, and also, it was found that their skills in LMA insertion were less than endotracheal tube insertion.

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An Exploration and Technical Notes for Advanced Airway Management on the Ski Slope: A Simulation Experiment

Emergency Medicine International ◽

10.1155/2021/9241891 ◽

2021 ◽

Vol 2021 ◽

pp. 1-5

Author(s):

Peng Bai ◽

Tian Xia ◽

Zhongwei Yang ◽

Wei Huai ◽

Xiangyang Guo ◽

...

Keyword(s):

Airway Management ◽

Endotracheal Intubation ◽

Operation Time ◽

Laryngeal Mask ◽

Bite Block ◽

Optimal Method ◽

Artificial Airway ◽

Advanced Airway ◽

Laryngeal Mask Insertion ◽

Significant Difference

Background. Skiing is a high-risk winter sport, and the rate of injury fatality is the highest compared to other winter sports. During skiing rescue, the harsh natural environments will increase the difficulty of artificial airway establishment. There has been no research focusing on the establishment of the artificial airway during skiing rescue site. This study aims to simulate the real-world scenario, calculating and comparing the operation time of different artificial airways on the cold slope, and to explore the optimal method of establishing artificial airway on the cold slope, sharing our experience, technical notes, and pitfalls we encountered, hoping to help establish a standard operating procedure in advanced airway management on the ski slope. Methods. The simulated human was placed on the cold slope with the head under the feet. Artificial airway was established by the same anesthesiologist using endotracheal intubation (endotracheal intubation group), LMA Supreme laryngeal mask (LMA group), and I-gel laryngeal mask (I-gel group). Each method was repeated 5 times, and the operation time and whether it was successful by one attempt were recorded and compared between groups. Results. Three groups of artificial airway were successful by one attempt.. The bite block dropped and drifted away for one time in the endotracheal intubation group. Operation time is 209.2 ± 32.7 seconds in the endotracheal intubation group, 72.2 ± 3.1 seconds in the LMA group, and 52.6 ± 4.2 seconds in the I-gel group. ANOVA showed that there was a significant difference in the operation time among the three groups ( p < 0.001 ). Tukey’s post hoc test showed that there were statistically significant differences between the endotracheal intubation group and the other two groups in operation time, p < 0.001 , while there was no significant difference between the LMA group and I-gel group ( p = 0.275 ). Conclusion. The artificial airway can be completed by endotracheal intubation and LMA and I-gel laryngeal mask insertion on the cold slope. Artificial airway with the I-gel laryngeal mask takes the shortest time in this study. Extra caution should be paid to slippery and drifting.

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Airway Management with the Laryngeal Mask Airway (LMA) in Emergency Medical Services

Journal of the Medical Association of Thailand ◽

10.35755/jmedassocthai.2021.s01.12131 ◽

2021 ◽

Vol 104 (Suppl. 1) ◽

pp. S8-S11

Keyword(s):

Laryngeal Mask Airway ◽

Airway Management ◽

Oxygen Saturation ◽

Emergency Medical Services ◽

Success Rate ◽

Laryngeal Mask ◽

High Success Rate ◽

Medical Services ◽

Supraglottic Airway ◽

Emergency Medical

Background: Airway management is an important aspect of care in emergency medical services (EMS) used to prevent obstruction of the respiratory track and inadequate oxygenation. The laryngeal mask airway (LMA) is an easy-to-use supraglottic airway device developed in 1988 that has a high success rate in both adults and children. However, there have yet been no studies regarding LMA use in EMS in Thailand. Objective: To determine the success rate of LMA in EMS and factors associated with successful LMA insertion. Materials and Methods: This was a cross-sectional study consisting of Srinagarind Hospital EMS patients over 18 years of age who underwent LMA airway management between March 2016 and March 2020. Data were collected from the Srinagarind Hospital EMS operation database and hospital information database system. Results: A total of 154 patients were enrolled with a mean age of 43.1+8.5 years, 89 (57.8%) of whom were male. Non trauma patients accounted for 72.7% of all cases. The average oxygen saturation before and after LMA use were 71.4+12.3% and 94.4+3.2%, respectively (p = 0.022). Students in their first and third year of residency training were able to successfully perform LMA airway management on the first attempt in 83.3% and 98.4% of cases, respectively (p = 0.025). Conclusion: Airway management using the LMA had a high success rate on the first attempt, required less time for insertion than other comparable devices, and resulted in a high level of oxygen saturation. Keywords: Laryngeal mask airway, Emergency medical services, Airway management, Internship and residency

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A Comparative Study of Laryngeal Mask Airway and Air-Q Intubating Laryngeal Airway Using Parker Flex Tip Tube

Academia Anesthesiologica International ◽

10.21276/aan.2020.5.1.30 ◽

2020 ◽

Vol 5 (1) ◽

pp. 149-152

Author(s):

Sanjay Melville Masih ◽

Rakesh Kumar Gupta

Keyword(s):

Laryngeal Mask Airway ◽

Endotracheal Intubation ◽

Airway Device ◽

Laryngeal Mask ◽

Supraglottic Airway ◽

Intubating Laryngeal Mask Airway ◽

Study Results ◽

The Mean ◽

Group 2 ◽

Group 1

Background: To facilitate tracheal intubation, intubating laryngeal mask airway(ILMA) was designed specifically. A relatively new supraglottic airway device, air-Q ILA is an alternative to ILMA to facilitate endotracheal intubation. Considering advantages of air-Q over ILMA are that the breathing tube of the device is shorter, wider and due to removable connector, a standard e Parker Flex Tip tracheal tube (product of Parker Medical Company) has a curved, centered, flexible and tapered distal tip that is designed to facilitate easy, rapid and non-traumatic intubation. It has double murphy eyes with an anterior curvature and a posterior opening bevel. It is designed so that the posterior bevel will decrease the incidence of the tube catching at the anterior or the lateral laryngeal structures during tracheal intubation.Subjects and Methods: This is a randomized, single-blind study. Total of 100 patients of either sex aged 18–60 years belonging to American Society of Anaesthesiologists (ASA) physical status I or II scheduled for elective surgery under general anesthesia with endotracheal intubation were included in the study and the patients with respiratory or pharyngeal pathology, mouth opening < 2.5 cm, body mass index ≥35 kg/m2, pregnancy and anticipated difficult airway were excluded from the study. The duration of the study was one year. The ethical clearance was taken from the institutional ethical committee. Written informed consent from all participants was obtained for participation in the study. Results: A total of 100 patients were allocated for the study. The insertion of the airway device was successful in all the patients of group 1. So, 50 patients were analysed for intubation in group 1. Air-Q ILA could not be inserted and resulted in failure in two cases. Hence, 48 patients were analysed statistically for intubation in group 2. The two groups were comparable with respect to age, weight and sex distribution. The mean age of patients in group 1 was 40.00 ± 10.76 years and in group 2 it was 40.56 ± 11.0 years (P = 0.651). There were 30 females and 20 males both in group 1 and group 2 (P = 1.000). The mean weight of patients in group 1 was 60.34 ± 8.06 kg and in group 2 was 60.10 ± 10.05 kg (P = 0.924). Conclusion:The overall success rate using Parker Flex Tip tube was more with ILMA (99%) as compared to air-Q ILA (78%). It can be further suggested that Parker Flex Tip tube can be used as an alternative to silicone tube with ILMA, but more multicentre studies are required over larger populations to evaluate the utility of Parker Flex Tip tube with air-Q ILA.

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Cluster cross-over randomised trial of paediatric airway management devices in the simulation lab and operating room among paramedic students

Emergency Medicine Journal ◽

10.1136/emermed-2020-209929 ◽

2020 ◽

Vol 38 (1) ◽

pp. 27-32

Author(s):

Matthew Lee Hansen ◽

Adam Wagner ◽

Ashley Schnapp ◽

Amber Lin ◽

Nancy Le ◽

...

Keyword(s):

Laryngeal Mask Airway ◽

Airway Management ◽

Endotracheal Tube ◽

Operating Room ◽

Randomised Trial ◽

Multivariable Analysis ◽

Random Order ◽

Laryngeal Mask ◽

Significant Difference ◽

Mean Time

ObjectivesThe objective of this study was to compare paediatric emergency airway management strategies in the simulation lab and operating room environments.MethodsThis was a two-part cluster cross-over randomised trial including simulation lab and operating room environments conducted between January 2017 and June 2018 in Portland, Oregon, USA. In simulated infant cardiac arrests, paramedic students placed an endotracheal tube, an i-gel or a laryngeal mask airway in random order. In the operating room, paramedic students placed a laryngeal mask airway or i-gel device in random order in sequential patients. The primary outcome for both portions of the study was time to ventilation. In the operating room portion, we also evaluated leak pressures and average initial tidal volumes.ResultsThere were 58 paramedic students who participated in the simulation lab and 22 who participated in the operating room study. The mean time to airway placement in the simulation lab was 48.5 s for the i-gel, 68.9 s for the laryngeal mask and 129.5 s for the endotracheal tube. In the operating room, mean time to i-gel placement was 34.3 s with 45.2 s for the laryngeal mask. In multivariable analysis of the simulation study, the laryngeal mask and i-gel were significantly faster than the endotracheal tube, and the i-gel was faster than the laryngeal mask. In the operating room, there was no significant difference in time to placement, leak pressure and average volume of the first five breaths between the i-gel and laryngeal mask.ConclusionsWe found that paramedic students were able to place supraglottic devices rapidly with high success rates in simulation lab and operating room environments. Supraglottic devices, particularly the i-gel, were rated as easy to use. The i-gel may be easiest to use since it lacks an inflable cuff and requires fewer steps to place.

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Safe emergency neonatal airway management: current challenges and potential approaches

Archives of Disease in Childhood - Fetal and Neonatal Edition ◽

10.1136/archdischild-2020-319398 ◽

2021 ◽

pp. fetalneonatal-2020-319398

Author(s):

Joyce E O'Shea ◽

Alexandra Scrivens ◽

Gemma Edwards ◽

Charles Christoph Roehr

Keyword(s):

Laryngeal Mask Airway ◽

Airway Management ◽

Neonatal Resuscitation ◽

Laryngeal Mask ◽

Viable Alternative ◽

Supraglottic Airway ◽

Success Rates ◽

Facemask Ventilation

This review examines the airway adjuncts currently used to acutely manage the neonatal airway. It describes the challenges encountered with facemask ventilation and intubation. Evidence is presented on how to optimise intubation safety and success rates with the use of videolaryngoscopy and attention to the intubation environment. The supraglottic airway (laryngeal mask airway) is emerging as a promising neonatal airway adjunct. It can be used effectively with little training to provide a viable alternative to facemask ventilation and intubation in neonatal resuscitation and be used as an alternative conduit for the administration of surfactant.

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To compare the frequency of postoperative sore throat with I-gel versus laryngeal mask airway in patients

10.53350/pjmhs2115123232 ◽

2021 ◽

Vol 15 (12) ◽

pp. 3232-3235

Author(s):

M. J. Ahmed Kamal ◽

Baber Zaheer ◽

Naveed Ahmed Durrani ◽

Khaleel Ahmad ◽

Sumara Tabassam ◽

...

Keyword(s):

Laryngeal Mask Airway ◽

General Anesthesia ◽

Sore Throat ◽

Laryngeal Mask ◽

Supraglottic Airway ◽

Postoperative Sore Throat ◽

Significant Difference ◽

Group A ◽

Group Members ◽

Group B

Background: In case of general anesthesia, airway maintenance along with least complications is the most important goal of team of anesthesiologists. In case of clinical practice, the laryngeal mask airway (LMA) devices have superiority in managing supraglottic airway. Recently i-gel airway has been introduced as supraglottic airway equipment (disposable). Aim: To make comparison between laryngeal mask and I-gel with respect to postoperative complication of sore throat in case of patients who were given general anesthesia. Study design: Randomized trial Setting: Anesthesia Department Study duration: 6 after synopsis approval in total 6months of duration Methods: Candidates were divided randomly divided into two groups. In case of members of group A, patients were given i-gel where as members of group B, disposable LMA was given. General anesthesia was administered according to the standardized protocols. A day after operation, candidates were check post operatively for 24 hours, for sore throat and information was documented on Performa. Results: The candidates mean age was 44.23±15.11years in case of i-gel group members whereas 46.10±15.56 years in case of LMA group. In case of i-gel group, there were about twenty five males members and thirty five were females members . In case of LMA group members, there were about twenty six males and thirty four female members . In present case research, sore throat postoperatively was seen in case of 17(14.2%) cases, i.e. 4 (6.7%) in i-gel group while 13(21.7%) in case of LMA group. The significant difference was witnessed between members of both groups (p<0.05). Conclusion: Thus i-gel is better than LMA for general anesthesia as it has fewer chances of side effects like postoperative sore throat. Keywords: Postoperative sore throat, I-gel, laryngeal mask airway, general anesthesia

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Comprehensive Overview of Pediatric Airway Management

10.2310/em.4402 ◽

2019 ◽

Author(s):

Dale Woolridge ◽

Lisa Goldberg ◽

Garrett S. Pacheco

Keyword(s):

Airway Management ◽

Endotracheal Tube ◽

Endotracheal Intubation ◽

Emergency Physician ◽

Laryngeal Mask ◽

Volume Control ◽

Comprehensive Overview ◽

Insertion Depth ◽

Pediatric Airway ◽

Core Skill

Pediatric endotracheal intubation is a procedure that can be stress provoking to the emergency physician. Although the need for this core skill is rare, when confronted with this situation, the emergency physician must have knowledge of the anatomic, physiologic, and pathologic components unique to the pediatric airway to optimize success. Furthermore, the emergency physician should be well versed in the various equipment and adjuncts as well as techniques developed to effectively manage the pediatric airway. This review covers the pathophysiology and practice of endotracheal intubation. Figures show a gum elastic bougie; the Mallampati classification; appropriate oropharyngeal, laryngeal, and tracheal axes; advancing the laryngoscope to lift the epiglottis; endotracheal tube position in neonates; and synchronized intermittent mandatory ventilation pressure-regulated volume control mechanical ventilation. Tables list endotracheal tube sizes, neonatal endotracheal tube sizes, pediatric laryngeal mask airway sizes, commonly used induction agents, and endotracheal tube insertion depth guidelines. This review contains 6 figures, 8 tables, and 77 references. Key words: emergent tracheal intubation; endotracheal tube; laryngoscopy; pediatric airway; pediatric airway management; pediatric endotracheal intubation; pediatric laryngeal mask; video laryngoscopy

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