The Story of Equine Atypical Myopathy: A Review from the Beginning to a Possible End

Table 2

The frequency of the main clinical features of AM as described by Belgian [3], French [31], and European [2] epidemiological studies.

	France; (𝑛=82); 2002-2003; (%)	Belgium; (𝑛=57); 2000–2005; (%)	Europe; (𝑛=354); 2006–2009; (%)
Depression	74	72	80
Weakness	Not mentioned	100	85
Stiffness	82	80	83
Recumbency	90	96	78
Trembling	Frequent	71	68
Sweating	58	57	64
Pigmenturia	100	95	93
Distended bladder on rectal palpation	Not mentioned	80	58
Congested mucous membranes	Not mentioned	69	53
Tachycardia	76	69	79
Dyspnea	70	68	44
Normothermia	48	36	60