Sleep-disordered breathing in dogs

Brachycephalic dogs display sleep-disordered breathing (SDB). The risk factors for SDB remain unknown. This prospective observational cross-sectional study aimed to identify risk factors for SDB. The authors hypothesized that brachycephaly, increasing severity of brachycephalic obstructive airway syndrome (BOAS), excess weight, and aging predispose to SDB. The primary outcome measure was the obstructive respiratory event index (OREI). Body condition score (BCS) was assessed, and BOAS severity was graded for brachycephalic dogs. Sixty-three privately owned pet dogs were recruited: 28 brachycephalic and 35 normocephalic (mesaticephalic or dolicocephalic) dogs. Brachycephaly was a significant risk factor for high OREI value (ratio of the geometric means 5.6, ...

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