The Pekingese (also spelled Pekinese) is a breed of toy dog, originating in China. Another breed, the Shih Tzu, has its English name derive from the same source as this breed's Chinese name which translates to 'lion dog'. In Hubbard's time, the term Sleeve was applied in Britain to a miniature Pekingese no more than 6–7 pounds in weight, often appearing to be only about 3–4 pounds. When diagnosed early and successfully treated with medication, a Pekingese with this problem can expect to live many years. A heart murmur is a potential sign of a problem, and must be evaluated by a veterinary cardiologist. Very often, the problem does not surface until the dog is 6 or more years old, so it is very difficult to screen the problem in a pup. The breed standards of two other flat-faced breeds, the Pug and English Bulldog, were soon also changed.