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01.06.2015 | Original Article

Pathophysiology of airway obstruction caused by wound hematoma after thyroidectomy: an ex vivo study

verfasst von: Dr. med. T. von Ahnen, Dr. med. M. von Ahnen, Dr. med. U. Wirth, A. Schroll, Prof. Dr. med. H. M. Schardey, PD Dr. med. S. Schopf

Erschienen in: European Surgery | Ausgabe 3/2015

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Summary

Background

Airway obstruction by postoperative hemorrhage after thyroid resection is a serious adverse and potentially life-threatening event. The aim of this study is to investigate if the possible pressure caused by a postoperative hematoma in the neck would be sufficient to compress the trachea and therefore leads to a mechanical airway obstruction.

Methods

In this ex vivo model varying pressures (0–250 mmHg) were applied on 30 human cadaver tracheas. The primary outcome was the anterior-posterior and latero-lateral tracheal diameter during the application of different pressures.

Results

At the highest pressures of 250 mmHg, there was an average compression of only 67.80 % in anterior-posterior direction and of 60.09 % in latero-lateral direction.

Conclusions

This study suggests that even pressures of 250 mmHg in neck-hematomas would be insufficient to cause a mechanical airway occlusion.

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Titel: Pathophysiology of airway obstruction caused by wound hematoma after thyroidectomy: an ex vivo study
verfasst von: Dr. med. T. von Ahnen
Dr. med. M. von Ahnen
Dr. med. U. Wirth
A. Schroll
Prof. Dr. med. H. M. Schardey
PD Dr. med. S. Schopf
Publikationsdatum: 01.06.2015
Verlag: Springer Vienna
Erschienen in: European Surgery / Ausgabe 3/2015
Print ISSN: 1682-8631
Elektronische ISSN: 1682-4016
DOI: https://doi.org/10.1007/s10353-015-0318-8

Springer Medizin Österreich

Summary

Background

Methods

Results

Conclusions

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