ArticleEquine veterinary journal2026
Objective diagnosis of alar fold collapse in active Standardbred trotting racehorses using nasopharyngeal airway pressure measurements.
Article in Equine veterinary journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundClinical evaluation of alar fold (AF) collapse is presently based upon subjective evaluation of improvement in breathing and respiratory noise after suturing the AFs dorsally.
objectivesTo evaluate use of nasopharyngeal airway pressure (NAP) as an objective method of assessing for the presence of AF collapse during exercise. NAPs should also potentially provide a precise means to grade the degree of airway obstruction present and response to surgical treatment. STUDY
designProspective clinical study of actively racing Standardbred horses.
methodsStandardbreds undergoing this test were outfitted with a heart rate monitor and warmed up on the treadmill for approximately 2000 m, prior to instrumentation with the analogue pressure sensor positioned in the nasopharynx. NAPs were measured continuously before and after the AFs were temporarily sutured dorsally, when horses were trotted at a heart rate ≥200 bpm for 2 min under identical testing circumstances. Peak inspiratory and expiratory NAPs were determined for each horse. A two-way repeated measures ANOVA was performed to analyse the effect of suturing the AFs dorsally on inspiratory and expiratory NAPs. When possible, horses were tested again after AF resection surgery.
resultsTwenty-one consecutive cases with suspected AF collapse were tested. Suturing the AFs dorsally had a significant effect on expiratory NAPs (p < 0.001), but not on inspiratory NAPs. Expiratory NAPs decreased from baseline (mean ± SD) 35.8 ± 8.81 cmH MAIN LIMITATIONS: Not all horses were available for NAP testing post-operatively.
conclusionsNAP measurements provided a precise objective means to determine whether a horse was affected with AF collapse and assess improvement in airway function after surgery. AF collapse caused a moderate to marked expiratory airway obstruction in many affected racehorses.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.