Endoscopic analysis of guttural pouch opening in horses

Deluzurieux, Marion; Desjardins, Isabelle; Nolf, M.; Guidi, Eleonora; Depecker, Marianne; Cadoré, Jean‐Luc

doi:10.20454/jeaas.2013.649

Cited by 7 publications

(6 citation statements)

References 4 publications

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“…Inflammation of the mucosal lining that occurs with local infection can lead to neuritis of the pharyngeal branch of the vagus nerve and loss of muscular control of the nasopharyngeal ostium. 1,2,12,13 This inflammation also contributes to loss of the normal mucociliary clearance and thickening of exudate with infiltrating leukocytes. 14 Further, overinflation of the guttural pouch with continued distension can also inhibit fluid egress.…”

Section: Discussionmentioning

confidence: 99%

Clinical outcome of horses with guttural pouch infection following transpharyngeal fenestration

Koch

Ericksen

Easley

et al. 2022

javma

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OBJECTIVE To report the clinical outcomes of horses with chronic guttural pouch infection characterized by accumulation of mucopurulent material following transpharyngeal diode laser fenestration. ANIMALS 13 client-owned horses PROCEDURES Horses undergoing diode laser fenestration for chronic guttural pouch infection were identified by medical record search. Signalment, disease history, presence of mucopurulent empyema or chondroids, and pre- and postoperative therapy were recorded. Owners were contacted for follow-up information at a minimum of 6 months following surgery. RESULTS 13 horses underwent laser fenestration for chronic guttural pouch infection. Thirteen had mucopurulent nasal discharge on presentation, and 3 were coughing. At follow-up, 12 horses treated with transpharyngeal diode laser fenestration had complete resolution of nasal discharge and coughing. One horse, despite resolution of guttural pouch infection on endoscopy, continued to have nasal discharge and coughing attributed to concurrent equine asthma syndrome. All owners expressed satisfaction with the surgical procedure and clinical resolution of guttural pouch infection. CLINICAL RELEVANCE This surgical technique for transpharyngeal diode laser fenestration of the guttural pouch was uncomplicated to perform and well tolerated in sedated horses and attributed to resolution of clinical signs associated with guttural pouch infection, and owners reported a high satisfaction with the clinical outcome. Implementing this surgical technique could be considered to hasten resolution of chronic guttural pouch disease in horses with few technique-related complications.

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Section: Discussionmentioning

confidence: 99%

Clinical outcome of horses with guttural pouch infection following transpharyngeal fenestration

Koch

Ericksen

Easley

et al. 2022

javma

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“…In addition, with the generalised availability of endoscopes, examination of the guttural pouches is becoming a routine clinical procedure that helps to increase the recognition of various diseases (Baptiste ; Deluzurieux et al . ).…”

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confidence: 97%

Challenges associated with the diagnosis and management of guttural pouch epistaxis in equids

Lepage

2015

Equine Veterinary Education

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“…The purpose of this restraint is to keep the head at shoulder level and to avoid the passive opening of the GP pharyngeal orifices. Passive opening of these orifices occurs during mastication and breathing when the horse is maintained with its head at floor level [ 27 ]. With the orifice being closed most of the time with this restraint, we hypothesized that this restraint would increase the local presence of oxygen, which could enhance the activity of defensive cells, helping to reduce the pathogenicity of the microorganisms.…”

Section: Discussionmentioning

confidence: 99%

“…During TOT sessions in the standing position, the head was kept at shoulder height [ 23 ], and horses were not allowed to eat so as to keep the pharyngeal orifices closed as much as possible [ 27 ]. The GP catheter was changed as required, and the most common reason for changing was its displacement outside the GP caused by horses rubbing their nose and destroying the catheter fixation.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Topical Oxygen Therapy in Horses Affected with Mycosis of the Guttural Pouch: An Experimental Pilot Study and a Case Series

Lepage

Francesco

Moulin

et al. 2021

Animals

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Background: The management of bleeding originating from the guttural pouch (GP) has a high success rate, but the resolution of the macroscopic inflammatory lesions in the case of mycosis (GPM) is highly variable; the resolution of neurological disorders is inconstant and challenging. Objectives: Our aim was to test the feasibility and safety of topical oxygen therapy (TOT) in horses after induction of GPM and in cases with naturally occurring disease. Study design: This study was an in vivo experimental and retrospective two-phase study. Methods: During phase 1, the pilot study, both GPs were inoculated with Aspergillus fumigatus. One GP was randomly assigned to receive one to four TOT 30 min sessions with 100% medical oxygen at 9 L/min. Follow-up endoscopic images were assessed for scoring macroscopic inflammatory lesions of the pharynx and both GPs. In phase 2, the clinical study, TOT was administered for 45 to 60 min at 15 L/min in six horses presenting with GPM. Results: In phase 1, TOT administration was easy to perform in the standing horse with no adverse effects. After more than two administrations, macroscopic inflammatory lesions decreased more quickly in size in the treated GP. In phase 2, horses were treated with TOT only (n = 1) or combined with a transarterial coil embolization (TACE) procedure (n = 5). After TOT and discharge from the hospital, nasal discharge resolved in three horses, and improvement was noted in the fourth one. Between days 2 and 10 after admission, upper respiratory tract endoscopy (URTE) indicated size reduction and alteration in the appearance of all the macroscopic inflammatory lesions. The partial or total recovery of neurological disorders (2/4 laryngeal hemiparesis, 3/5 dysphagia, 1/2 dorsal displacement of the soft palate (DDSP), and 1/1 Horner’s syndrome) was recorded. Main limitations: In phase 1, the small number of horses did not allow for statistically significant conclusions; in phase 2, clinical signs at admission varied between horses, which made comparison difficult. Conclusions: In adult horses, TOT alone or in combination with TACE is feasible and safe with a propensity to reverse the course and the progression of inflammatory lesions without additional local or systemic treatment.

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Endoscopic analysis of guttural pouch opening in horses

Cited by 7 publications

References 4 publications

Clinical outcome of horses with guttural pouch infection following transpharyngeal fenestration

Clinical outcome of horses with guttural pouch infection following transpharyngeal fenestration

Challenges associated with the diagnosis and management of guttural pouch epistaxis in equids

The Effect of Topical Oxygen Therapy in Horses Affected with Mycosis of the Guttural Pouch: An Experimental Pilot Study and a Case Series

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