**Author details**

**8. Conclusion**

*Available gastro LMAs.*

**Figure 22.** *Gastro LMA.*

> **Mask size**

**Table 11.**

**Patient weight (kg)**

*Special Considerations in Human Airway Management*

airway.

technique.

**276**

**Conflict of interest**

The first clinically useful SGA was introduced more than 3 decades ago. The clinical utility of various SGAs has significantly increased over this period. Different designs have specific advantages in different clinical scenarios. Insertion is easy to learn, and with adequate training nonphysicians are capable of securing an

**Maximum intracuff pressure (cm H2O)**

3 30–50 60 14 4 50–70 60 14 5 70–100 60 14

**Maximum endoscope size (mm)**

The use of SGAs for expanded indications has been described in many ways. The expanded spectrum of indications including airway instrumentation, surgeries in prone position, paediatric age group and use in critical care settings. The position of SGAs for rescue airway management is prominent in guidelines issued by various authorities. SGAs continue to be an important mode of rescue ventilation in patients in "can't ventilate can't intubate" scenarios. The ability to aspirate gastric contents renders them a safe alternative to the conventional ETTs. The ability to act as a conduit for intubation in elective and emergency patients is a valuable rescue

Knowledge about the indications and contraindications of using an SGA is prudent for its appropriate use. SGAs with enough documented evidence of safety and efficacy should be used. Increasing recognition of an SGA's applications should

expand its role in airway management for the anesthesiologist.

The author declares no conflict of interest.

Kriti Singh ESIC Hospital and PGIMSR, Basaidarapur, New Delhi, India

\*Address all correspondence to: drkritisingh@gmail.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
