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Larynx

Larynx

The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway interventions are...

Cardiopulmonary Resuscitation II: ACLS Airway Management

Cardiopulmonary Resuscitation II: ACLS Airway Management

Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned under...

Oxygen Delivering System I: Nasal Cannula and Face Mask

Oxygen Delivering System I: Nasal Cannula and Face Mask

The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...

Administering Oxygen by Mask

Administering Oxygen by Mask

Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:

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Updated: Jul 14, 2026

Laryngeal Mask Airway (LMA) Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway (SGA)

Laryngeal Mask Airway (LMA) Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway (SGA)

Published on: July 14, 2023

[Laryngeal masks. Possibilities and limits].

H Hillebrand¹, J Motsch

¹Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg. henning.hillebrand@med.uni-heidelberg.de

Der Anaesthesist

|May 24, 2007

Summary

The laryngeal mask airway (LMA) is a revolutionary tool for airway management. This overview covers LMA basics, practical uses, and its potential and limitations in clinical practice.

Area of Science:

Anesthesiology
Airway Management

Background:

The laryngeal mask airway (LMA) was introduced in 1981 and has become widely used since 1990.
Initially designed as a substitute for mask respiration during short anesthesia periods.
Its application has expanded to include alternatives for endotracheal intubation and managing difficult airways.

Purpose of the Study:

To provide an overview of the laryngeal mask airway (LMA).
To discuss the practical aspects of LMA use.
To examine the possibilities and limitations of LMAs in clinical practice.

Main Methods:

Literature review of LMA applications.
Discussion of clinical experiences with LMAs.
Analysis of LMA's role in airway management.

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Laryngeal Mask Airway (LMA) Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway (SGA)

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Main Results:

The LMA has evolved from a simple airway device to a versatile tool.
It serves as an alternative to endotracheal intubation and aids in difficult airway management.
Understanding LMA's capabilities and constraints is crucial for effective use.

Conclusions:

The laryngeal mask airway represents a significant advancement in airway management.
LMAs offer a valuable option for various clinical scenarios, including elective procedures and difficult airways.
A comprehensive understanding of LMA use optimizes patient care and safety.