Evaluation of Frova, single‐use intubation introducer, in a manikin. Comparison with Eschmann multiple‐use introducer and Portex single‐use introducer *

  title={Evaluation of Frova, single‐use intubation introducer, in a manikin. Comparison with Eschmann multiple‐use introducer and Portex single‐use introducer *},
  author={Iljaz Hod{\vz}ovi{\'c} and Ian Peter Latto and Antony Robert Wilkes and J. E. Hall and William W. Mapleson},
In a randomised cross‐over study, 48 anaesthetists attempted to place a Frova single‐use introducer, an Eschmann multiple‐use introducer and a Portex single‐use introducer in the trachea of a manikin set up to simulate a grade 3 laryngoscopic view. The anaesthetists were blinded to success (tracheal placement) or failure (oesophageal placement). Successful placement (proportion, 95% confidence interval) of either the Frova introducer (65%, 50–77%) or the Eschmann introducer (60%, 46–73%) was… 

Evaluation of tracheal tube introducers in simulated difficult intubation *

The single‐use introducers are more likely to cause tissue trauma during placement, particularly if held close to the tip, and the single‐ use introducers have a higher likelihood of causing tissue trauma than the new Portex or Frova.

Evaluation of clinical effectiveness of the Frova single‐use tracheal tube introducer

The Frova introducer has a high success rate for tracheal placement but has noteworthy potential to produce airway trauma.

The problem of cross‐over design in airway studies

Evaluation of Frova, single-use intubation introducer, in a manikin: comparison with Eschmann multiple-use introducer and Portex single- use introducer.

Comparison of malleable stylet and reusable and disposable bougies by paramedics in a simulated difficult intubation

In a randomised crossover study, 60 ambulance paramedics attempted tracheal intubation of a manikin model of a Cormack and Lehane grade 3/4 view using a Portex stylet, Portex and Frova single‐use

Airway Scope®‐assisted nasotracheal intubation

Clinicians should be aware that when the Portex Venn reusable introducer is placed in the fridge before use, the associated increase in stiffness that improves the incidence of successful tracheal placement results in increased peak forces at the tip and an associated increased risk of airway trauma.

Effect of trolley height on the management of difficult airway; a manikin study*

Adjusting the trolley height before laryngoscopy appears to improve the intubating conditions and may have beneficial effect on anaesthetist’s posture during intubation.

Stylets and Introducers

Anaesthesia and Intensive Care, Vol. 42, No. 5, September 2014 “It is most disconcerting after a difficult exposure of the cords to be unable to direct the catheter between them for lack of control.”

Does the use of a bougie reduce the force of laryngoscopy in a difficult airway with manual in-line stabilisation?: A randomised crossover simulation study

To minimise the force of laryngoscopy and movement of a potentially unstable cervical spine injury, consideration should be given to the early use of a bougie.

A comparative randomized trial of intubation success in difficult intubation cases: the use of a Frova intubation catheter versus a Bonfils intubation fiberoscope

  • O. OnalIrem Gumus J. Celik
  • Medicine
    Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques
  • 2019
Given the shorter duration of intubation using the FC and its lower cost as compared with that of the BF, the FC can be considered superior to the BF in difficult intubations cases.



A comparison of simulated difficult intubation with multiple‐use and single‐use bougies in a manikin *

There is an increased risk of failure to intubate the trachea when using a single‐use bougie, and this must be weighed against the unquantified risk of cross‐infection from prions when using two‐ or multiple‐ use bougies.

Bougie‐assisted difficult airway management in a manikin – the effect of position held on placement and force exerted by the tip *

In a randomised cross‐over study, 50 anaesthetists attempted to place a multiple‐use bougie in the trachea of a manikin, when holding it at either 20 cm or 30’cm from the tip, particularly if held close to the tip.

To shape or not to shape…Simulated bougie‐assisted difficult intubation in a manikin *

It is suggested that bougies used to facilitate difficult intubation should be curved and have a coudé tip.

Use of the bougie in simulated difficult intubation. 2. Comparison of single‐use bougie with multiple‐use bougie *

It is concluded that the multiple‐use bougie is a more reliable aid to tracheal intubation than the single‐use introducer in grade IIIa laryngoscopy.

Use of the bougie in simulated difficult intubation. 1. Comparison of the single‐use bougie with the fibrescope *

It is concluded that the fibrescope used in conjunction with Macintosh laryngoscopy is a more reliable method of tracheal intubation than the single‐use bougie in both types of grade III laryNGoscopy.

Successful difficult intubation

These signs of tracheal placement of a gum elastic bougie are reliable and that they should be taught as part of any difficult intubation drill in which the gum elasticbougie is used.

Difficult tracheal intubation in obstetrics

Percutaneous subclavian cannulation particularly on the left side, is a hazardous procedure and should be undertaken with great caution and it may also be wiser practice to avoid long, large-bore needles and catheter-through-needle devices such as the one used in this case.

Difficult tracheal intubation

The authors have demonstrated in morbidly obese patients that tracheal intubation was of shorter duration and easier with the Airtraq than with the Macintosh laryngoscope, resulting in a median IDS1⁄40 with theAirtraq, which is similar to that found in this study for the two videolaryngoscopes.

A response to ‘Bougie trauma – it is still possible’, Prabhu A, Pradham P, Sanaka R and Bilolikar A, Anaesthesia 2003; 58: 811–12

Through the use of methylmethacrylate mixed in a vacuum for surgical repair of femoral neck fractures with cemented hip arthroplasty, the incidence of severe cardiac complications could be reduced significantly.

Survey of the use of the gum elastic bougie in clinical practice.

Various recommendations for optimal external laryngeal pressure and use of the bougie were not followed on 15-64% of occasions and there is a need for better education in these techniques.