Airway Complaints and Laryngeal Pathology after Intubation with an Anatomically Shaped Endotracheal Tube

Alexopoulos, C.; Ce, Lindholm

doi:10.1111/j.1399-6576.1983.tb01964.x

Cited by 24 publications

(9 citation statements)

References 31 publications

(19 reference statements)

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“…In a study of 200 patients in which intubation with a standard polyvinylchloride (PVC) tube was compared with that with a tube shaped to conform to the anatomy of the airway, patients underwent indirect laryngoscopy 5 days postoperatively [43]. Similar numbers of patients in each group had pathological changes (32% in the standard PVC group, 23% in the study group), but lesions were seen more frequently in the interarytenoid and subglottic area when the standard PVC tube was used.…”

Section: Injuries Resulting From Tracheal Intubationmentioning

confidence: 99%

Postoperative sore throat: cause, prevention and treatment

1999

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SummarySore throat is a common postoperative complaint, occurring most often following tracheal intubation. Factors such as tracheal-tube size and cuff design have been shown to be important causative factors. Routine tracheal intubation for elective surgical procedures can result in pathological changes, trauma and nerve damage which may also account for postoperative throat symptoms. Sore throat following the use of a laryngeal mask appears to be related to the technique of insertion but the contribution of intracuff pressure remains to be clarified. It would appear, however, that high intracuff pressure is associated with nerve palsies due to neuropraxia and nerve compression. Careful insertion techniques for both the tracheal tube and laryngeal mask are of paramount importance in the prevention of airway trauma and postoperative sore throat.

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Section: Injuries Resulting From Tracheal Intubationmentioning

confidence: 99%

Postoperative sore throat: cause, prevention and treatment

1999

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“…The principal cause of modification in zone H is the structural change in the head as a function of body position. This influence has already BRITISH JOURNAL OF ANAESTHESIA been reported by Alexopoulos and his colleagues in their work on a new intubation device [8][9][10][11][12][13]. The changes in cervicocephalic angle imply significant deformations in the pharyngolaryngeal structures.…”

Section: Discussionmentioning

confidence: 73%

“…Mean (SD) cervicocephalic angle(8) and area between curve segments and the X axis for the cervicocephalic angle subgroups.…”

mentioning

confidence: 99%

Mathematical Analysis of the Upper Respiratory Tract From an Anthropometric Study

Janvier

Bordenave

Revel

et al. 1993

British Journal of Anaesthesia

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In order to design a new, performed tracheal tube adapted to the shape of the upper respiratory tract, we have undertaken an anthropometric study from lateral x-rays of the neck in 130 patients with the head in a fixed position. In order to assess different clinical situations, we studied three groups of patients: group 1 = sitting, no tracheal tube; group 2 = supine, no tracheal tube; group 3 = supine, trachea intubated. We defined a standard coordinate system and determined mathematical curves for segments of the upper respiratory tract by a polynomial regression method. With these data it was possible to study the effects of physiological variations on the shape of the curves. It was then possible to determine at which region changes occur and the factors influencing these changes. We found that the relative position of the larynx was constant, whereas the hypopharynx exhibited the greatest change with the position of the head. These observations should allow us to construct a new, performed tracheal tube with elastic compliance properties to fit the changes occurring in the region of the hypopharynx.

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“…This does not touch the vocal folds, there should therefore be a minimal risk of laryngeal damage or discomfort. After tracheal intubation with direct contact with the vocal apparatus, the pos‐ sibility of post‐anaesthetic airway complaints is recognized [1–12]. On the other hand, studies have shown laryngeal discomfort after using a face mask with incidences as high as 33%[12, 14, 15].…”

Section: Discussionmentioning

confidence: 99%

“…Many different variables can influence the incidence and magnitude of the post‐anaesthetic sequelae. These include the material, shape and size of the tube, cuff pressure, drugs used and the general morbidity of the patient [5–10]. The way of questioning (direct or indirect) also influences the reporting of a sore throat [6, 11, 12].…”

Section: Introductionmentioning

confidence: 99%

Effects on vocal function and incidence of laryngeal disorder when using a laryngeal mask airway in comparison with an endotracheal tube

Zimmert

1999

Eur J Anaesthesiol

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A study of 56 patients was undertaken to determine whether there is a difference in the effect of the laryngeal mask airway and the endotracheal tube on the vocal tract after short-duration anaesthesia. All the patients were interviewed pre- and post-operatively. In 43 patients, it was possible to assess the larynx using videoendoscopy and videostrobolaryngoscopy both pre- and post-operatively. Selected acoustic characteristics were investigated in 51 patients pre- and 18-24 h post-operatively. Thirty-four patients that did not have anaesthesia were used as an age-matched control. The interview showed, that patients in the LMA group complained less frequently of having post-operative laryngeal discomfort. The videostrobolaryngoscopy demonstrated minor lesions of the vocal tract in six patients in the ETT group and in one patient in the LMA group. Of the 12 voice variables evaluated, there was no significant difference in any parameter between the two groups. Both groups had a higher fundamental frequency post-operatively.

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Airway Complaints and Laryngeal Pathology after Intubation with an Anatomically Shaped Endotracheal Tube

Cited by 24 publications

References 31 publications

Postoperative sore throat: cause, prevention and treatment

Postoperative sore throat: cause, prevention and treatment

Mathematical Analysis of the Upper Respiratory Tract From an Anthropometric Study

Effects on vocal function and incidence of laryngeal disorder when using a laryngeal mask airway in comparison with an endotracheal tube

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