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Effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance in larynges of canine cadavers.

Abstract

OBJECTIVE

To evaluate the effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance (LAR) in canine cadaver larynges. SAMPLE 6 clinically normal canine cadaver larynges. PROCEDURES LAR was determined for each specimen before (baseline) and after bilateral ventriculocordectomy with the epiglottis open and closed. After ventral laryngotomy was performed, the vocal cords were sharply excised, and the incised mucosal edges were apposed with 4-0 glycomer 631 suture in a simple continuous pattern. The thyroid cartilage was apposed with 3-0 polypropylene suture in a simple continuous pattern.

RESULTS

With the epiglottis closed, baseline median LAR was 27.6 cm H2O/L/s (range, 21.2 to 30.6 cm H2O/L/s), which did not differ significantly from the median LAR after bilateral ventriculocordectomy (24.7 cm H2O/L/s [range, 20.6 to 27.7 cm H2O/L/s]). With the epiglottis open, baseline median LAR was 7.3 cm H2O/L/s (range, 5.4 to 7.8 cm H2O/L/s), which did not differ significantly from the median LAR after bilateral ventriculocordectomy (7.2 cm H2O/L/s [range, 6.6 to 7.6 cm H2O/L/s]).

CONCLUSIONS

AND CLINICAL RELEVANCE Bilateral ventriculocordectomy did not affect LAR with an open epiglottis in canine cadaver larynges. Therefore, it may not be an effective treatment for laryngeal paralysis. It also did not affect LAR with a closed epiglottis, which may indicate protection against aspiration pneumonia.

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  • Authors

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    Source

    American journal of veterinary research 78:12 2017 Dec pg 1444-1448

    MeSH

    Airway Resistance
    Animals
    Cadaver
    Dogs
    Female
    Laryngectomy
    Larynx
    Male
    Sutures
    Vocal Cords

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    29182396

    Citation

    Regier, Penny J., et al. "Effect of Bilateral Ventriculocordectomy Via Ventral Laryngotomy On Laryngeal Airway Resistance in Larynges of Canine Cadavers." American Journal of Veterinary Research, vol. 78, no. 12, 2017, pp. 1444-1448.
    Regier PJ, McCarthy TC, Monnet E. Effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance in larynges of canine cadavers. Am J Vet Res. 2017;78(12):1444-1448.
    Regier, P. J., McCarthy, T. C., & Monnet, E. (2017). Effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance in larynges of canine cadavers. American Journal of Veterinary Research, 78(12), pp. 1444-1448. doi:10.2460/ajvr.78.12.1444.
    Regier PJ, McCarthy TC, Monnet E. Effect of Bilateral Ventriculocordectomy Via Ventral Laryngotomy On Laryngeal Airway Resistance in Larynges of Canine Cadavers. Am J Vet Res. 2017;78(12):1444-1448. PubMed PMID: 29182396.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance in larynges of canine cadavers. AU - Regier,Penny J, AU - McCarthy,Timothy C, AU - Monnet,Eric, PY - 2017/11/29/entrez PY - 2017/11/29/pubmed PY - 2018/3/22/medline SP - 1444 EP - 1448 JF - American journal of veterinary research JO - Am. J. Vet. Res. VL - 78 IS - 12 N2 - OBJECTIVE To evaluate the effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance (LAR) in canine cadaver larynges. SAMPLE 6 clinically normal canine cadaver larynges. PROCEDURES LAR was determined for each specimen before (baseline) and after bilateral ventriculocordectomy with the epiglottis open and closed. After ventral laryngotomy was performed, the vocal cords were sharply excised, and the incised mucosal edges were apposed with 4-0 glycomer 631 suture in a simple continuous pattern. The thyroid cartilage was apposed with 3-0 polypropylene suture in a simple continuous pattern. RESULTS With the epiglottis closed, baseline median LAR was 27.6 cm H2O/L/s (range, 21.2 to 30.6 cm H2O/L/s), which did not differ significantly from the median LAR after bilateral ventriculocordectomy (24.7 cm H2O/L/s [range, 20.6 to 27.7 cm H2O/L/s]). With the epiglottis open, baseline median LAR was 7.3 cm H2O/L/s (range, 5.4 to 7.8 cm H2O/L/s), which did not differ significantly from the median LAR after bilateral ventriculocordectomy (7.2 cm H2O/L/s [range, 6.6 to 7.6 cm H2O/L/s]). CONCLUSIONS AND CLINICAL RELEVANCE Bilateral ventriculocordectomy did not affect LAR with an open epiglottis in canine cadaver larynges. Therefore, it may not be an effective treatment for laryngeal paralysis. It also did not affect LAR with a closed epiglottis, which may indicate protection against aspiration pneumonia. SN - 1943-5681 UR - https://www.unboundmedicine.com/medline/citation/29182396/Effect_of_bilateral_ventriculocordectomy_via_ventral_laryngotomy_on_laryngeal_airway_resistance_in_larynges_of_canine_cadavers L2 - http://avmajournals.avma.org/doi/full/10.2460/ajvr.78.12.1444?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -