The pharyngeo-tracheal lumen airway: Preliminary investigation of a new adjunct

Niemann, James T.; Rosborough, John P.; Myers, R. C.; Scarberry, E.

doi:10.1016/s0196-0644(84)80280-2

Cited by 40 publications

(7 citation statements)

References 11 publications

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“…The precursor to the Combi-tube devised by Michael Frass (Frass et al, 1987), is a device invented by E.N. Scarberry (1980, US patent number 4231365) and Niemann (Niemann et al, 1984), with…”

Section: Classificationsmentioning

confidence: 99%

Airway Management Evolution – In a Search for an Ideal Extraglottic Airway Device

Michálek

Miller

2014

Prague Med. Rep.

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Extraglottic airway devices (EADs) are commonly used equipment for airway maintenance during elective procedures under general anaesthesia. They may be used also in other indications such as conduit for tracheal intubation or rescue airway device in prehospital medicine. Current classifications of the EADs lack systematic approach and therefore classification according to the sealing sites and sealing mechanisms is suggested in this review article. Modern EADs are disposable, latex-free devices made of plastic materials most commonly from polyvinylchloride (PVC). The bowl of uncuffed sealers is manufactured from different materials such as thermoplastic elastomers or ethylene-vinyl-acetate co-polymer. EADs create various physical forces exerted on the adjacent tissues which may contribute to different sealing characteristic of particular device or to variable incidence of postoperative complications. Desired features of an ideal EAD involve easy insertion, high insertion success rate even by inexperienced users, protection against aspiration of gastric contents and low incidence of postoperative complications such as sore throat, hoarseness, cough or swallowing difficulties.

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Section: Classificationsmentioning

confidence: 99%

Airway Management Evolution – In a Search for an Ideal Extraglottic Airway Device

Michálek

Miller

2014

Prague Med. Rep.

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“…Several oropha-ryngeal airways have been developed, I some of which provide an air-tight seal, usually by forming a plug in the upper pharynx. [2][3][4] The beauty of the laryngeal mask is that it forms an airtight seal by enclosing the larynx rather than plugging the pharynx, and avoids airway obstruction in the oropharynx.…”

Section: Emergency Medicine Conclusionmentioning

confidence: 99%

The laryngeal mask airway: its features, effects and role

1994

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The laryngeal mask airway was designed as a new concept in airway management and has been gaining a firm position in anaesthetic practice. Numerous articles and letters about the device have been published in the last decade, but few large controlled trials have been performed. Despite widespread use, the definitive role of the laryngeal mask has yet to be established. In some situations, such as after failed tracheal intubation or in anaesthesia for patients undergoing laparoscopic or oral surgery, its use is controversial. There are a number of unresolved issues, for example the effect of the laryngeal mask on regurgitation and whether or not cricoid pressure prevents placement of the mask. We review the techniques of insertion, details of misplacement, and complications associated with the use of the laryngeal mask. We discuss the features and physiological effects of the device, including the changes in intra-cuff pressure during anaesthesia and effects on blood pressure, heart rate and intra-ocular pressure. We then attempt to clarify the role of the laryngeal mask in airway management during anaesthesia, based on the current knowledge, by discussing the advantages and disadvantages as well as the indications and contraindications of its use. Lastly we describe the use of the laryngeal mask in circumstances other than airway maintenance during anaesthesia: fibreoptic bronchoscopy, tracheal intubation through the mask and its use in cardiopulmonary resuscitation.

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“…Ein eigentlicher Algorithmus zur Bewältigung von Problemen bei der Atemwegssicherung ist in den ILCOR-Guidelines nicht enthalten. Genannt werden die Larynxmaske [2], der ösophagotracheale Combitube [10] und der pharyngotracheale Lumentubus (PTL) [17], jedoch wird für Letzteren keine Empfehlung ausgesprochen("class indeterminate").Weitere relativ neue, auf dem deutschen Markt verfügbare Hilfsmittel sind die Intubations-Larynxmaske (Fastrach) [3] und der Larynxtubus [12], die noch nicht in den Empfehlungen enthalten sind, aber offensichtlich auch Einzug in den präkli-nischen Bereich gehalten haben. Generell ist die Auseinandersetzung mit der Problematik des schwierigen Atemweges, die Vorhaltung von und die Ausbildung an Alternativen wichtiger als das spezifische Hilfsmittel, das im Einzelfall zum Einsatz kommt [6].…”

Section: Atemwegsmanagementunclassified