Assessment of dynamic upper respiratory tract function in the equine athlete

Franklin, Samantha; Allen, Kate J

doi:10.1111/eve.12432

Cited by 17 publications

(59 citation statements)

References 88 publications

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“…ADAF frequently occurred in combination with DDSP (20 horses), for which a significant correlation was determined (OR 4.18,P<0.005). This is in accordance with other studies (Lane et al 2006a, Parente et al 1994, 1997, Robertson et al 1998, Franklin and Allen 2017. Combined occurrence of ADAF and findings in the area of the vocal fold was also common.…”

Section: Frequencies Of Dynamic Obstructionssupporting

confidence: 92%

“…The horse can be ridden by its jockey and worked in its training group together with other horses. Thus, the horses do not have to be familiarized with a treadmill (Franklin et al 2008, Pollock and Reardon 2009, Demaizieres et al 2009, Sloet van OldruitenborghOosterbaan and Clayton 1999, Tamzali et al 2008, Courouce et al 1999, Franklin and Allen 2017, Allen et al 2016). …”

Section: Introductionmentioning

confidence: 99%

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Frequencies of dynamic obstructions of the upper respiratory tract in 135 Thoroughbreds during on-board exercise endoscopy

Oellers¹,

Barton²,

Ohnesorge³

2018

PHK

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Summary:The frequencies of dynamic obstructions in thoroughbreds were investigated by performing on-board exercise endoscopy in 135 horses. 17 of these horses showed abnormal respiratory noise only and 35 solely poor performance. In 39 cases, both was reported. In addition, 44 horses underwent endoscopy without any clinical signs. In all of 56 horses that exhibited an audible abnormal respiratory noise, an obstruction of the upper respiratory tract was present. Overall, dynamic upper airway obstructions were detected in 72.6 % (98/135). The most commonly diagnosed obstruction was axial deviation of the aryepiglottic fold (ADAF) in 55.1% of horses (54/98). 24.4 % (24/98) showed palatal instability (PI), 30.6 % (30/98) dorsal displacement of the soft palate (DDSP) and 11.2 % (11/98) arytenoid cartilage collapse (ACC). Furthermore, 53.1% (52/98) of horses had abnormalities in the area of the vocal folds. Of these horses, 13 had unilateral or bilateral vocal cord collapse (VCC) and 8 displayed vibration of the vocal cords. 31 horses showed axial deviation in the area of the caudal vocal fold (ADPV) as a sole abnormality. By the new description of these ADPV, the origin of the abnormal respiratory noise in a further proportion of horses could be explained. Including ADPV, an obstruction of the upper airways was observed in all horses (100 %) with specified abnormal respiratory noise. If only horses with long or continuous (> 8 sec) DDSP were taken into account, abnormal respiratory noise was audible in 93.3 % and poor performance was present in 73.3 %. It can thus be assumed that horses with DDSP requiring treatment are clinically apparent either with abnormal respiratory noise or poor performance. Furthermore, it was demonstrated, that in 52.3% of horses without poor performance or abnormal respiratory noise an dynamic upper airway obstruction was identified.

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Section: Frequencies Of Dynamic Obstructionssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Frequencies of dynamic obstructions of the upper respiratory tract in 135 Thoroughbreds during on-board exercise endoscopy

Oellers¹,

Barton²,

Ohnesorge³

2018

PHK

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“…Strand et al documented collapse of the epiglottic margins and morphology while at work. Such changes were further expounded by Allen and Franklin, and changes such as these may play a role in EE development.…”

Section: Discussionmentioning

confidence: 96%

Using quarterly earnings to assess racing performance in 66 thoroughbreds after transendoscopic laser surgery for treatment of epiglottic entrapment

et al. 2018

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“…Alar fold collapse occurs in cases in which redundant size of the AF or failure of the transversus nasi muscles action allows entry of air in the false nostrils that causes flaccidity of the AF and partial obstruction of the nasal cavities . Alar fold collapse usually causes a continuous vibrating/buzzing noise, usually present in both expiration and inspiration, associated with elevated expiratory nasopharyngeal pressures . This condition is a known cause for poor performance in equine athletes; AF collapse was diagnosed in 11% of Norwegian standardbreds examined for noise/exercise intolerance .…”

Section: Introductionmentioning

confidence: 99%

Complete resection of the alar folds in eight standing horses with a bipolar dividing and vessel‐sealing device

Kallmyr¹,

Giving²,

Moen³

et al. 2020

Veterinary Surgery

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Objective To describe a resection technique of the alar folds in the standing horse. Study design Retrospective case study. Animals Eight Standardbred racing trotters. Methods Horses in which alar fold collapse had been diagnosed between 2017 and 2018 were included in this study. All horses underwent alar fold resection under standing sedation and regional anesthesia with a bipolar electrosurgical open sealer/divider device (LigaSure). Intraoperative and postoperative complications were recorded. A Wilcoxon signed‐rank test was used to compare differences in median prize money earning pre‐surgery and post‐surgery (P < .05). Results The surgical procedure was short (20‐30 min), with minimal (1/8) to no (7/8) bleeding and was well tolerated in all cases. Complete resection of the alar folds along with 3 to 5 cm of the ventral conchal cartilage was achieved. No complications were observed post‐surgery with satisfactory second intention healing, allowing return to training/racing within 3 to 6 weeks post‐surgery in all cases. Median earnings post‐surgery increased (P = .03) compared with pre‐surgery. Conclusion Alar fold resection with bipolar electrosurgical energy offered a good alternative to the traditional surgical approaches performed under general anesthesia. The surgery significantly improved race earnings and performance while avoiding the risk associated with general anesthesia and offered a short and complication‐free rehabilitation period. Clinical impact This study describes a surgical technique offering a novel approach to resection of the alar folds in the standing horse.

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Assessment of dynamic upper respiratory tract function in the equine athlete

Cited by 17 publications

References 88 publications

Frequencies of dynamic obstructions of the upper respiratory tract in 135 Thoroughbreds during on-board exercise endoscopy

Frequencies of dynamic obstructions of the upper respiratory tract in 135 Thoroughbreds during on-board exercise endoscopy

Using quarterly earnings to assess racing performance in 66 thoroughbreds after transendoscopic laser surgery for treatment of epiglottic entrapment

Complete resection of the alar folds in eight standing horses with a bipolar dividing and vessel‐sealing device

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