The Scottish Cavalier King Charles Spaniel Club.

Number dogs examined: 68 dogs examined

Age range: < 1 year to 13 years, (46 of the 68 dogs were < 6 years)

Presence of murmur: 20 of the 68 dogs had evidence of a murmur

Murmur grades: grade 0/6 to 6/6 were observed

High grade murmurs: grade ≥4/6 murmurs were only present in dogs ≥ 8 years

Murmur grades in dogs of different ages:

  Heart Testing 2014