Since the introduction of anesthesia in the mid-19th century, intubation has been a critical process that has to be carried out with skill and precision. Difficult and unsuccessful tracheal intubations continue to be a leading cause of anesthesia-related morbidity and mortality. Fortunately, new technologies are being developed to make the process easier and safer for both patients and clinicians. One such innovation that has taken the world of anesthesiology by storm is the disposable video laryngoscope.
A video laryngoscope is a device that uses a miniature camera attached to a blade to provide an enlarged image of the glottis, making it easier for clinicians to see and insert an endotracheal tube (ETT) during intubation. Unlike conventional laryngoscopes that require the aligning of the oral, pharyngeal, and tracheal axes, video laryngoscopes can generate a clear view without manipulation of the head and neck. They are also more suitable for use in patients with difficult airways or those who have been intubated previously.
The Pentax AWS is one of the latest video laryngoscopes to hit the market. It was first introduced in Japan in 2006 and has been gaining popularity among anesthesiologists around the world. The Pentax AWS differs from other video laryngoscope designs in that it has a built-in, battery-powered, LCD monitor that enables the clinician to view the glottis while inserting the ETT. This feature also eliminates the need for an external monitor, making the device more compact and portable. Additionally, the Pentax AWS has a side channel that guides the ETT during intubation, reducing the risk of injury and trauma.
Research has shown that using the Pentax AWS can facilitate faster and easier intubation than conventional laryngoscopes. A randomized, controlled trial conducted by Japanese researchers compared the performance of the Pentax AWS with that of a standard Macintosh laryngoscope with a #4 blade. The study found that intubation was easier and faster with the Pentax AWS, and there were no significant differences in the incidence of complications between the two devices.
One of the significant drawbacks of video laryngoscopes is their cost. Most video laryngoscope blades are reusable and require sterilization after each use, which can be time-consuming and costly. However, disposable video laryngoscopes have recently become available, making the use of video laryngoscopes more cost-effective and practical. Disposable video laryngoscopes offer several advantages over reusable ones, including reduced risk of transmission of infectious agents between patients, improved safety, ease of use, and reduced cleaning and maintenance costs.
In conclusion, the Pentax AWS and other disposable video laryngoscopes are revolutionary tools that have transformed the field of anesthesiology. These devices are effective, safe, and easy to use, making intubation a less challenging and more efficient process. As the technology continues to advance, it is likely that disposable video laryngoscopes will become a standard tool in anesthesia practice, saving lives and improving patient care.