Thumps

(syn­chro­nous di­aphrag­matic flut­ter)

EQUUS - - Prevention -

Def­i­ni­tion: spas­modic con­trac­tion of the di­aphragm in time to the heart­beat

Causes: de­ple­tion of cal­cium ions in the body flu­ids,

re­sult­ing from en­durance work or other ac­tiv­ity that en­tails long-term sweat­ing with­out the op­por­tu­nity to re­cover

Signs: rhyth­mic twitch­ing of the flank mus­cles in time with the heart­beat, usu­ally at least 50 times per minute. In some cases, the thump­ing may be au­di­ble.

Di­ag­no­sis: ob­ser­va­tion of signs

Treat­ment: Stop work and al­low the horse to graze and drink. An elec­trolyte sup­ple­ment may be help­ful. Use your cell phone or another de­vice to take video of your horse to help con­firm the di­ag­no­sis, in case it stops be­fore the vet­eri­nar­ian gets there. Your vet­eri­nar­ian may choose to ad­min­is­ter in­tra­venous cal­cium. If the horse is also show­ing signs of de­hy­dra­tion, fever, loss of ap­petite and is weak and un­re­spon­sive, he may be de­vel­op­ing heat ex­haus­tion—take im­me­di­ate steps to cool him off, and seek vet­eri­nary care.

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