Brachycephalic dog breeds have experienced a marked rise in popularity in recent years. While numerous people clearly desire this phenotype in their pets, many of these dogs unfortunately experience several concomitant sequelae, including major problems with respiration and thermoregulation, as well as gastrointestinal, ophthalmological, dermatological, reproductive and even dental problems. This mini review focuses on the anatomical and pathological changes associated with brachycephalic skull shape, including brachycephalic obstructive airway syndrome and other co-existent disorders. It then details the known genetic contributors to brachycephaly, and concludes with a brief discourse on the welfare of these animals.
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http://dx.doi.org/10.1016/j.jcpa.2020.02.008 | DOI Listing |
Front Vet Sci
January 2025
Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Brachycephalic breeds suffer from respiratory distress known as brachycephalic obstructive airway syndrome (BOAS) and the multiple comorbidities associated with it. Targeted breeding toward a more BOAS-free phenotype requires accurate and least invasive detection of BOAS severity grades that are accessible and accepted by the breeders and kennel clubs. This study aimed to compare the-outcome of morphometric anatomical examination with functional tests such as exercise tests and plethysmography for the detection of BOAS severity in a group of 84 French Bulldogs.
View Article and Find Full Text PDFPLoS One
December 2024
Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom.
Brachycephalic obstructive airway syndrome (BOAS) is well documented in the three most popular brachycephalic dog breeds of the UK and several other countries: French Bulldogs, Pugs and Bulldogs. More extreme conformation has been found to be associated with increased risk of BOAS and other brachycephalic disease in these breeds, such as ocular, neurological, and dental disease. Less is known about how BOAS and other brachycephalic conformation-related disease affects other breeds such as the Boston Terrier.
View Article and Find Full Text PDFVet Res Commun
November 2024
Department of Veterinary Surgery, Federal University of Paraná (UFPR), Palotina, Brazil.
The aim was to compare the outcomes acquired from the OSA-Vet device with conventional quantitative and qualitative tear tests and between groups within each test, in brachycephalic dogs both healthy and those diagnosed with keratoconjunctivitis sicca. The dogs were divided into four groups: healthy dogs (HD), with mild KCS (MIKCS); moderate KCS (MOKCS); severe KCS (SKCS). All patients underwent ocular surface diagnostic examination in the following order, with a 10-minute interval between tests: non-invasive tear film breakup time (TBUTNI - OSA-Vet), tear meniscus height (TMH-OSA-Vet), meniscometry (I-Tear test), Schirmer Tear Test-1 (STT-1), and tear film breakup time (TBUT).
View Article and Find Full Text PDFFront Vet Sci
November 2024
Department of Veterinary Clinical Sciences, Small Animal Clinic - Neurosurgery, Neuroradiology and Clinical Neurology, Justus-Liebig-University, Giessen, Germany.
Background: Brachycephalic dogs are overrepresented with ventricular enlargement. Cerebrospinal fluid (CSF) flow dynamics are not completely understood. MRI techniques have been used for the visualization of CSF dynamics including phase-contrast imaging.
View Article and Find Full Text PDFVet J
December 2024
Department of Animal Biosciences, Swedish University of Agricultural Sciences P.O. Box 7028, Uppsala 750 07, Sweden.
Brachycephalic Obstructive Airway Syndrome (BOAS) is a potentially life-threatening condition that can be challenging to diagnose and grade objectively. The aim of this study was to investigate the use of respiratory signal analysis to assess severity of BOAS in dogs. Hundred and seventeen client-owned dogs of brachycephalic and non-brachycephalic breeds were enrolled.
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