supraglottic airway devices
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2021 ◽  
Vol 6 (3) ◽  
pp. 24-30
Author(s):  
Amani Alenazi ◽  
Bashayr Alotaibi ◽  
Najla Saleh ◽  
Abdullah Alshibani ◽  
Meshal Alharbi ◽  
...  

Objective: The study aimed to measure the success rate of pre-hospital tracheal intubation (TI) and supraglottic airway devices (SADs) performed by paramedics for adult patients and to assess the perception of paramedics of advanced airway management.Method: The study consisted of two phases: phase 1 was a retrospective analysis to assess the TI and SADs’ success rates when applied by paramedics for adult patients aged >14 years from 2012 to 2017, and phase 2 was a distributed questionnaire to assess paramedics’ perception of advanced airway management.Result: In phase 1, 24 patients met our inclusion criteria. Sixteen (67%) patients had TI, of whom five had failed TI but then were successfully managed using SADs. The TI success rate was 69% from the first two attempts compared to SADs (100% from first attempt). In phase 2, 63/90 (70%) paramedics responded to the questionnaire, of whom 60 (95%) completed it. Forty-eight (80%) paramedics classified themselves to be moderately or very competent with advanced airway management. However, most of them (80%) performed only 1‐5 TIs or SADs a year.Conclusion: Hospital-based paramedics (i.e. paramedics who are working at hospitals and not in the ambulance service, and who mostly respond to small restricted areas in Saudi Arabia) handled few patients requiring advanced airway management and had a higher competency level with SADs than with TI. The study findings could be impacted by the low sample size. Future research is needed on the success rate and impact on outcomes of using pre-hospital advanced airway management, and on the challenges of mechanical ventilation use during interfacility transfer.


BMJ Open ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. e053215
Author(s):  
Olga Klementova ◽  
Taranpreet Kaur Bhoday ◽  
Jakub Werner ◽  
Ana M Lopez ◽  
Will Donaldson ◽  
...  

IntroductionSupraglottic airway devices represent a less invasive method of airway management than tracheal intubation during general anaesthesia. Their continued development is focused mainly on improvements in the insertion success rate and minimalisation of perioperative and postoperative complications. The i-gel Plus is a novel, anatomically preshaped supraglottic airway device which achieves a perilaryngeal seal due to a non-inflatable cuff made of a soft thermoplastic elastomer. The purpose of this cohort study is to assess the success rate of the i-gel Plus use during elective procedures under general anaesthesia, its intraoperative performance, and the degree of postoperative complications.Methods and analysisThis is a multicentre, prospective, interventional cohort study. The enrolment will take place in seven centres in four European countries. We plan to enrol 2000 adult patients in total, who are scheduled for elective surgery under general anaesthesia, and with an indication for use of a supraglottic airway device for management of their airway. The study is projected to run over a period of 18 months. The primary outcome of the study is the total success rate of the i-gel Plus insertion in terms of successful ventilation and oxygenation through the device. Secondary outcomes include perioperative parameters, such as insertion time, seal/leak pressures, number of insertion attempts and postoperative adverse events and complications. Postoperative follow-up will be performed at 1 hour, 24 hours in all patients, and for selected patients at 3 and 6 months.Ethics and disseminationThe cohort study has received the following ethical approvals: General University Hospital Prague, University Hospital Olomouc, University Military Hospital Prague, University Hospital Barcelona, University Hospital Lodz, Antrim Area Hospital, Craigavon Area Hospital, Office for Research Ethics Committees Northern Ireland. The results will be published in peer-reviewed journals and presented at relevant anaesthesia conferences.Trial registration numberISRCTN86233693;Pre-results.


Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Jason Bartos ◽  
Arianne Agdamag ◽  
Rajat Kalra ◽  
Lindsay Nutting ◽  
Ralph J Frascone ◽  
...  

Introduction: Multiple clinical trials have failed to show significant differences in survival between use of endotracheal intubation (ETI) and supraglottic airway devices (SGA) in patients with out-of-hospital cardiac arrest (OHCA). However, treatment in these trials was limited to standard ACLS, which favors short duration of CPR. We sought to compare the physiological effect of ETI versus SGA use in patients treated with prolonged CPR and extracorporeal pulmonary resuscitation (ECPR) for refractory ventricular fibrillation/ventricular tachycardia (VT/VF) by the Minnesota Mobile Resuscitation Consortium (MMRC). Methods: Consecutive refractory VT/VF OHCA patients transported by the MMRC to the University of Minnesota for ECPR between 2015 and 2021 were included in this retrospective analysis. Patients were considered ineligible for ECPR if they failed specific arterial blood gas metabolic criteria (lactic acid >18 mmol/L, PaO2 <50 mmHg, and ETCO2 <10 mmHg). Metabolic parameters at presentation and survival were compared between patients receiving ETI and SGA. Results: Among 260 patients (58.0±11.8 years), 46.5% received ETI and 53.5% received SGA. During the index hospitalization, 78/260 (30%) achieved neurologically favorable survival. Compared to those receiving ETI, patients receiving SGA had lower PaO2 (116.8±118.7 versus 135.8±128.3 mmHg, p=0.03), higher PaCO2 (69.7±28.9 versus 60.7±25.6 mmHg, p=0.01), and lower pH (7.00±0.19 versus 7.06±0.21, p=0.008). Significantly more patients who received SGA had PaO2 <50mmHg (29.1% versus 16.9%, respectively; p=0.02) and ≥1 ECPR exclusion criteria (33.1% versus 20.7%, respectively; p=0.03). Among patients excluded for PaO2 <50 mmHg, the presenting PaO2 was 35.5±11.0 mmHg and the presenting PaCO2 was 94.5±26.2 mmHg, suggestive of absence of effective ventilation (asphyxia) at presentation. Survival with CPC 1-2 was 34.7% versus 25.9% for ETI versus SGA, respectively (p=0.12). Conclusion: Use of SGA, during prolonged CPR in refractory VT/VF OHCA, was associated with a significant increase in the proportion of patients presenting with significant hypoxemia and asphyxial physiology, thus increasing ineligibility for ECPR.


2021 ◽  
pp. 343-360
Author(s):  
Mincho Marroquin-Harris

This chapter provides a basic overview of anaesthetic equipment and its safe use. Topics include the provision of anaesthetic gases, the basic components of the anaesthetic machine, breathing systems, positive-pressure ventilation, and airway equipment including laryngoscopes, endotracheal tubes and supraglottic airway devices. Methods of long-term venous access are discussed.


2021 ◽  
Vol 8 (4) ◽  
pp. 521-526
Author(s):  
Neha Amey Panse ◽  
Jyoti Kale ◽  
Priyanka Praphulchandra Khondalay

: Propofol has been used since ages as induction agent to aid in insertion of Supraglottic airway devices however its side effects like hypotension, apnea and pain on injection do coexist. To avoid these side effects sevoflurane has been studied and well recognized because of its sweet smelling property. We conducted this study with primary aim to compare the insertion conditions such as no. of attempts for insertion, hemodynamic variations and awakening after surgery. The secondary aim was to note the adverse effects associated with Sevoflurane and propofol. We included sixty female patients of age 18-65 years graded as ASA I and II undergoing short gynecological procedures. Patients were induced with Sevoflurane 8% or IV Propofol 2mg/kg. Attempts for I-gel insertion, jaw relaxation, biting, coughing, gagging, laryngospasm and hemodynamic pressor response and awakening after surgery were noted.Induction time with Propofol is less compared to Sevoflurane. I-Gel insertion time with Sevoflurane and Propofol is insignificant (p value= 0.93). 25 patients in Group S and 27 patients in group P had very easy insertion of I-gel. 23 patients in Group S and 27 patients in Group P had relaxed jaw. None of the patients in both groups experienced laryngospasm. Propofol provided better conditions for I-gel insertion with manageable hypotension while the patients induced with Sevoflurane were hemodynamically more stable but the jaw relaxation was less as compared to that provided by propofol. Induction with 8% Sevoflurane by Vital Capacity Breath (VCB) technique can be an alternative for induction in high risk patients. Also the awakening from anaesthesia is faster with sevoflurane and is more suitable for patients demanding early discharge after day care surgeries.


2021 ◽  
Vol 12 (9) ◽  
pp. 103-110
Author(s):  
Ishita Bhattacharjee ◽  
Susanta Sarkar ◽  
Chiranjib Bhattacharyya ◽  
Debojyoti Das ◽  
Mohanchandra Mandal

Background: Supraglottic airway devices (SADs) such as LMA classic (cLMA), I-Gel, etc. are indispensable tool for the anaesthesiologists experienced in airway management. But studies evaluating the performance of these devices in the hands of unskilled personnel are scarce. Aims and Objective: To determine the procedure time and the proportion of patients having successful placement of I-gel and LMA classic by first-year Post Graduate Trainees (PGTs) of Anaesthesiology who tried insertion of those devices after a short training in mannequins without any hands-on training regarding placement of the devices in human. Materials and Methods: After getting Institute’s Ethics Committee’s approval for this interventional study, forty adult patients, posted for short surgical or gynaecological surgery, were randomly allocated in to two groups to have placement of either I-Gel (group ‘I’, n=20) or cLMA (group ‘C’, n=20) by first-year PGTs. The procedure time (Primary outcome) i.e. the time taken for successful placement of either device was determined and compared. A standard technique of anaesthesia was followed in every patient. Any adverse event such as sore throat, odynophagia, blood stain on the device, etc. was also recorded. Results: All patients were comparable with respect to demographic data and Mallampati scores. The mean procedure time (seconds) was considerably lower in I-Gel group compared with cLMA (63.3 ± 57.2 versus 163.0 ± 158.3, respectively, P value <0.001). The incidence of successful placement at first attempt was significantly higher for I-Gel group. The incidence of adverse events was comparable. Conclusion: Procedure time for I-Gel insertion is significantly shorter than with LMA Classic along with a higher success rate with first attempt for the former. I-Gel may be a better alternative as airway device for the unskilled anaesthesiologist.


Author(s):  
Megan Griffiths ◽  
James Everson ◽  
Yasser Mandour

Anaesthetists' use of positive end-expiratory pressure during elective general anaesthesia via supraglottic airway devices varies. Positive end-expiratory pressure may help to maintain oxygenation and prevent atelectasis, but could worsen the risk of air leak, gastric insufflation and catastrophic aspiration.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chih-Jun Lai ◽  
Yi-Chun Yeh ◽  
Yu-Kang Tu ◽  
Ya-Jung Cheng ◽  
Chih-Min Liu ◽  
...  

AbstractNumerous supraglottic airway device (SADs) have been designed for adults; however, their relative efficacy, indicated by parameters such as adequacy of sealing, ease of application, and postinsertion complications, remains unclear. We conducted a systematic review and network meta-analysis to evaluate the efficacy of various SADs. We searched electronic databases for randomized controlled trials comparing at least two types of SADs published before December 2019. The primary outcomes were oropharyngeal leak pressure (OLP), risk of first-attempt insertion failure, and postoperative sore throat rate (POST). We included 108 studies (n = 10,645) comparing 17 types of SAD. The Proseal laryngeal mask airway (LMA), the I-gel supraglottic airway, the Supreme LMA, the Streamlined Liner of the Pharynx Airway, the SoftSeal, the Cobra Perilaryngeal Airway, the Air-Q, the Laryngeal Tube, the Laryngeal Tube Suction II, the Laryngeal Tube Suction Disposable, AuraGain, and Protector had significantly higher OLP (mean difference ranging from 3.98 to 9.18 cmH2O) compared with that of a classic LMA (C-LMA). The Protector exhibited the highest OLP and was ranked first. All SADs had a similar likelihood of first-attempt insertion failure and POST compared with the C-LMA. Our findings indicate that the Protector may be the best SAD because it has the highest OLP.Systematic review registration PROSPERO: CRD42017065273.


2021 ◽  
Author(s):  
Pavel Michalek ◽  
Olga Klementova ◽  
Taranpreet Kaur Bhoday ◽  
Jakub Werner ◽  
Ana Lopez ◽  
...  

Introduction: Supraglottic airway devices represent a less invasive method of airway management than tracheal intubation during general anaesthesia. Their continued development is focused mainly on improvements in the insertion success rate and minimalization of perioperative and postoperative complications. The i-gel Plus is a novel, anatomically preshaped supraglottic airway device which achieves a perilaryngeal seal due to a non-inflatable cuff made of a soft thermoplastic elastomer. The purpose of this trial is to assess the success rate of the i-gel Plus use during elective procedures under general anaesthesia, its intraoperative performance, and the degree of postoperative complications. Methods and analysis: This is a multicenter, prospective, interventional cohort study. The enrolment will take place in seven centers in four European countries. We plan to enrol 2000 adult patients in total, who are scheduled for elective surgery under general anaesthesia, and with an indication for use of a supraglottic airway device for management of their airway. The study is projected to run over a period of 18 months. The primary outcome of the study is the total success rate of the i-gel Plus insertion in terms of successful ventilation and oxygenation through the device. Secondary outcomes include perioperative parameters, such as insertion time, seal/leak pressures, number of insertion attempts, and postoperative adverse events and complications. Postoperative follow-up will be performed at 1 hour, 24 hours in all patients, and for selected patients at 3 and 6 months. Ethics and dissemination: The trial has received the following ethical approvals: General University Hospital Prague, University Hospital Olomouc, University Military Hospital Prague, University Hospital Barcelona, University Hospital Lodz, Antrim Area Hospital, Craigavon Area Hospital, Office for Research Ethics Committees Northern Ireland. The results will be published in peer-reviewed journals and presented at relevant anaesthesia conferences.


2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Say Yang Ong ◽  
Vanessa Moll ◽  
Berthold Moser ◽  
Amit Prabhakar ◽  
Elyse M. Cornett ◽  
...  

Implication Statement: Despite the increasing popularity of video laryngoscopes, the supraglottic airway device (SAD) remains a critical airway rescue tool. The SAD provides a conduit for tracheal intubation in failed laryngoscopy. This article aims to help the operator: (1) select an intubating SAD with consistent performance; (2) inform the appropriate SAD-endotracheal tube pairings; and (3) explain various SAD and endotracheal tube maneuvers available to increase chances of successful intubation. Objectives: The first supraglottic airway device (SAD) was introduced more than thirty years ago. Since then, SADs have undergone multiple iterations and improvements. The SAD remains an airway rescue device for ventilation and an intubation conduit on difficult airway algorithms. Data Sources: Several SADs are specifically designed to facilitate tracheal intubation, i.e., “intubating SADs,” while most are “non-intubating SADs.” The two most commonly reported tracheal intubation methods via the SADs are the blind and visualized passage of the endotracheal tube (ETT) preloaded on a fiberoptic scope. Fiberoptic guided tracheal intubation (FOI) via an intubating SAD generally has higher success rates than blind intubations and is thus preferred. However, fiberscopes might not always be readily available, and anesthesiologists should be skilled to successfully intubate blindly through a SAD. Summery: This narrative review describes intubating SAD with consistent performance, appropriate SAD-ETT pairings, and various SAD and ETT maneuvers to increase successful intubation chances.


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