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LMA

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14 papers 0 to 25 followers
By Jigar Desai Private practicing anesthesiologist with special interest in supraglottic Airway devices
https://www.readbyqxmd.com/read/26702197/small-is-the-new-big-an-overview-of-newer-supraglottic-airways-for-children
#1
REVIEW
Rakhee Goyal
Almost all supraglottic airways (SGAs) are now available in pediatric sizes. The availability of these smaller sizes, especially in the last five years has brought a marked change in the whole approach to airway management in children. SGAs are now used for laparoscopic surgeries, head and neck surgeries, remote anesthesia; and for ventilation during resuscitation. A large number of reports have described the use of SGAs in difficult airway situations, either as a primary or a rescue airway. Despite this expanded usage, there remains little evidence to support its usage in prolonged surgeries and in the intensive care unit...
October 2015: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/24014230/supraglottic-airway-devices-versus-tracheal-intubation-for-airway-management-during-general-anaesthesia-in-obese-patients
#2
REVIEW
Amanda Nicholson, Tim M Cook, Andrew F Smith, Sharon R Lewis, Stephanie S Reed
BACKGROUND: The number of obese patients requiring general anaesthesia is likely to increase in coming years, and obese patients pose considerable challenges to the anaesthetic team. Tracheal intubation may be more difficult and risk of aspiration of gastric contents into the lungs is increased in obese patients. Supraglottic airway devices (SADs) offer an alternative airway to traditional tracheal intubation with potential benefits, including ease of fit and less airway disturbance. Although SADs are now widely used, clinical concerns remain that their use for airway management in obese patients may increase the risk of serious complications...
September 9, 2013: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/16078159/-severe-ards-following-perioperative-aspiration-of-gastric-content-associated-with-the-use-of-a-proseal-laryngeal-mask-airway
#3
C Putzke, M Max, G Geldner, H Wulf
A ProSeal laryngeal mask airway was used for anaesthesia for laparoscopic surgery in a 26 y old male patient with acute appendicitis. Perioperative aspiration of gastric contents resulted in severe ARDS. Invasive therapeutic options including ECMO had to be used to obtain full recovery. After critical evaluation of the chain of causation it must be postulated that an improper airway was chosen for an intervention that comprises a high risk of aspiration per se. Further risk factors were a long period of fasting, untimely removal of the mask before the patient regained full consciousness, the late confirmation of the diagnosis and the hesitant initial therapy...
August 2005: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/25682823/rotational-or-standard-method-of-i-gel-insertion
#4
LETTER
P Kumar, A Joshi
No abstract text is available yet for this article.
March 2015: Anaesthesia
https://www.readbyqxmd.com/read/18462912/choosing-the-correct-laryngeal-mask-airway-sizes-and-cuff-inflation-volumes-in-pediatric-patients
#5
Anthony M-H Ho, Manoj K Karmakar, Peter W Dion
The laryngeal mask airway (LMA) is now standard airway management equipment in prehospital and Emergency Department (ED) care. Most providers may not be able to match the pediatric LMA sizes to the appropriate weights of pediatric patients. The exact inflation volumes are also difficult to memorize. To overcome this problem, we propose the following equations: Weight (kg) of patient = 2(2 x LMA), where LMA is the size; cuff inflation volume (mL) = 5 x LMA.
October 2008: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/18647269/lower-cuff-pressures-improve-the-seal-of-pediatric-laryngeal-mask-airways
#6
Ana Licina, Neil A Chambers, Bruce Hullett, Thomas O Erb, Britta S von Ungern-Sternberg
BACKGROUND: Hyperinflation of laryngeal mask airway (LMA) cuffs may be harmful because of the exertion of high pressures on pharyngeal and laryngeal structures. Although cuff manometers may be used to monitor cuff pressure, their use is not routine in many institutions and clinical endpoints are used instead. Furthermore, it is common clinical practice to add air to the cuff in the presence of an air leak to obtain a better seal. METHODS: In a prospective audit, the authors assessed air leakage around pediatric sized LMAs (n = 200) following inflation guided by common clinical endpoints (slight outward movement of the LMA) and then following adjustment of the cuff pressure to the recommended pressure range (<60 cmH(2)O) according to institutional guidelines with the use of a calibrated cuff manometer, directly after induction of anesthesia...
October 2008: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/19691691/laryngeal-mask-airways-to-inflate-or-to-deflate-after-insertion
#7
Britta S von Ungern-Sternberg, Thomas O Erb, Neil A Chambers, Mairead Heaney
BACKGROUND: Hyperinflation of the laryngeal mask airway (LMA) cuff is known to be a risk factor for airway morbidity and increased leakage around the LMA. While the manufacturers' recommendation is to inflate the cuff with the maximum recommended volumes and/or to adjust the cuff pressure to <60 cmH2O, cuff pressures below 40 cmH2O have been shown to be associated with a minimal rate of sore throat and minimal leakage. However, it remains to be determined whether inflation or deflation is needed to achieve favorable pressures...
September 2009: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/9640153/appropriate-size-and-inflation-of-the-laryngeal-mask-airway
#8
RANDOMIZED CONTROLLED TRIAL
T Asai, T K Howell, K Koga, S Morris
We have compared size 3 and size 4 laryngeal masks in 30 females and size 4 and size 5 in 30 males for success rate of insertion, incidence of airleak and pressure exerted on the pharynx. First, the ex vivo volume-pressure relationship of the mask was obtained. Second, after insertion of a mask, the cuff was inflated with the recommended maximum volume of air and intracuff pressure measured. Third, the incidence of airleak during a steady airway pressure of 18 cm H2O was noted. Fourth, the cuff was deflated until it just prevented airleak, and cuff pressure was measured...
April 1998: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/19915475/the-supraglottic-airway-i-gel-in-comparison-with-proseal-laryngeal-mask-airway-and-classic-laryngeal-mask-airway-in-anaesthetized-patients
#9
RANDOMIZED CONTROLLED TRIAL
Won-Jung Shin, Yu-Seon Cheong, Hong-Seuk Yang, Tomoki Nishiyama
BACKGROUND AND OBJECTIVE: The I-gel is a new single-use supraglottic airway device without an inflatable cuff. This study was designed to investigate the usefulness of the I-gel compared with the classic laryngeal mask airway (cLMA) and ProSeal laryngeal mask airway (pLMA) in anaesthetized, paralysed patients. METHODS: The American Society of Anesthesiologists physical status I-II patients (n = 167) scheduled for orthopaedic surgery were included in this prospective study...
July 2010: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/25303083/fewer-sore-throats-and-a-better-seal-why-routine-manometry-for-laryngeal-mask-airways-must-become-the-standard-of-care
#10
EDITORIAL
E Bick, I Bailes, A Patel, A I J Brain
No abstract text is available yet for this article.
December 2014: Anaesthesia
https://www.readbyqxmd.com/read/17444312/the-proseal-laryngeal-mask-airway-in-prone-patients-a-retrospective-audit-of-245-patients
#11
J R Brimacombe, V Wenzel, C Keller
The use of the classic laryngeal mask airway (classic LMA) in the prone position is controversial, but the ProSeal laryngeal mask airway (ProSeal LMA) may be more suitable as it forms a better seal and provides access to the stomach. In the following retrospective audit, we describe our experience with the insertion of and maintenance of anaesthesia with, the ProSeal LMA in 245 healthy adults in the prone position by experienced users. The technique involved (1) the patient adopting the prone position with the head to the side and the table tilted laterally; (2) pre-oxygenation to end-tidal oxygen >90%; (3) induction of anaesthesia with midazolam/alfentanil/propofol; (4) facemask ventilation (5) a single attempt at digital insertion and if unsuccessful a single attempt at laryngoscope-guided, gum elastic bougie-guided insertion; (6) gastric tube insertion; (7) maintenance of anaesthesia with sevoflurane/O/N2O; (8) volume controlled ventilation at 8-12 ml/kg; (9) emergence from anaesthesia in the supine position; and (10) removal ofthe ProSeal LMA when awake...
April 2007: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/23983282/comparative-evaluation-of-gum-elastic-bougie-and-introducer-tool-as-aids-in-positioning-of-proseal-laryngeal-mask-airway-in-patients-with-simulated-restricted-neck-mobility
#12
Jennyl Maclean, Dk Tripathy, S Parthasarathy, M Ravishankar
BACKGROUND: The ProSeal laryngeal mask airway (PLMA) is a unique laryngeal mask with a modified cuff to improve seal and a channel to facilitate gastric tube placement. This is a better device in difficult airway situations compared to classic laryngeal mask airway. This prompted us to study the ease of insertion and positioning of PLMA in patients with simulated restricted neck mobility while using gum elastic bougie (GEB) group or introducer tool (group IT) to aid insertion. METHODS: Sixty ASA I or II patients, aged between 18 years and 60 years, undergoing minor non-head and neck surgeries in the supine position were studied...
May 2013: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/23264788/comparison-of-hemodynamic-and-metabolic-stress-responses-caused-by-endotracheal-tube-and-proseal-laryngeal-mask-airway-in-laparoscopic-cholecystectomy
#13
Handan Güleç, Türkay Cakan, Halil Yaman, Aytül Şadan Kilinç, Hülya Başar
BACKGROUND: We aimed to compare hemodynamic and endocrine alterations caused by stress response due to Proseal laryngeal mask airway and endotracheal tube usage in laparoscopic cholecystectomy. MATERIALS AND METHODS: Sixty-three ASA I-II patients scheduled for elective laparoscopic cholecystectomy were included in the study. Patients were randomly allocated into two groups of endotracheal tube and Proseal laryngeal mask airway. Standard general anaesthesia was performed in both groups with the same drugs in induction and maintenance of anaesthesia...
February 2012: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/19020130/use-of-proseal-laryngeal-mask-airway-in-2114-adult-patients-a-prospective-study
#14
Kai Goldmann, Carolin Hechtfischer, Amena Malik, Andrea Kussin, Christian Freisburger
BACKGROUND: There have been numerous studies published on the ProSeal laryngeal mask airway (PLMA). However, few have investigated its utility in a large practice setting. We sought to gather comprehensive data about the characteristics, efficacy, and safety of its use by a representative group of anesthesiologists working at a teaching center. METHODS: Information was collected on a standardized data collection form. Clinical information obtained included user characteristics, patient characteristics, type and duration of operation, details of airway management and anesthetic technique, details of adverse events, and postoperative status of the patient...
December 2008: Anesthesia and Analgesia
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