Insertion of a supraglottic airway and tracheal intubation through it may be indicated in resuscitation scenarios where conventional laryngoscopy fails. Various supraglottic devices have been used as conduits for tracheal intubation, including the intubating laryngeal mask airway (ILMA), the Ctrach laryngeal mask and the I-gel supraglottic airway.
A prospective study with 25 participants evaluated the success rate of blind intubation (using a gum-elastic bougie, an Aintree intubating catheter (AIC) and designated tracheal tube) and fibrescope-guided tracheal intubation (through the intubating laryngeal mask airway and the I-gel supraglottic airway) on three different airway manikins.
Twenty-five anaesthetists performed three intubations with each method on each of three manikins. The success rate of the fibrescope-guided technique was significantly higher than blind attempts (P<0.0001) with both devices. For fibreoptic techniques, there was no difference found between the ILMA and I-gel (P>0.05). All blind techniques were significantly more successful in the ILMA group compared to the I-gel (P<0.0001 for bougie, Aintree catheter and tracheal tube, respectively).
The results of this study show that, in manikins, fibreoptic intubation through both ILMA and I-gel is a highly successful technique. Blind intubation through the I-gel showed a low success rate and should not be attempted.
"This was also evident in this case from an easier insertion (in single attempt ) than Proseal LMA and i-gel serving as a successful ventilation device. The i-gel supraglottic airway has been used for ventilation and intubation in simulated difficult airway in manikin studies  . There are only three reports of its use in anticipated difficult airway. "
[Show abstract][Hide abstract] ABSTRACT: The “i-gel” is a newer, non-inflatable supraglottic airway device for clinical use and also for resuscitation purposes. It has also been found to be a useful ventilation and intubation device in anticipated/ simulated difficult airway situations. However, its use in unanticipated difficult airway situations in emergency set up has not been explored. We describe a case of 24 year male posted for emergency laparotomy that turned out to have an unanticipated difficult airway. At-tempts to intubation and ProSeal Laryngeal Mask Airway insertion failed. However, “i-gel” proved to be a very handy intubating conduit in this critical situation.
[Show abstract][Hide abstract] ABSTRACT: The paper examines a method of transmission of facsimile (FAX)
files via radio channels using the HDLC format (packet method) during
step C. Thus, one can control the the error using all the methods known,
such as ARQ, change rate, FEC and hybrid ARQ. In the paper the authors
used ARQ, change rate (rate adaptable) to control the error first. The
results of the experiment show that one can transmit FAX files without
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on; 11/1993
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