Chapter 298 : Hypoparathyroidism

Question 1

Which effect of PTH as the most influence on calcemia ?

Answer 1

Renal effect

Question 2

Etiology hPTH ?

Answer 2

Neck surgery
Trauma
Immune mediated

Question 3

Breeds predisposed to hPTH?

Answer 3

Miniature Schnauzer, Poodles, GSD, Terriers

Question 4

Physical exam hPTH?

Answer 4

Neuro : Seizures, tremors, fasciculation
Behavioural changes : biting at paw, rubbing
Hyperthermia, stiff gait, painful when touch
Hearth: tachyarrythmias
Eye : lenticular cataract

Question 5

Calcemia ?

Answer 5

Clinical signs observed when iCa < 0,8 mmol/L (might be observed at higher value if acute)

Question 6

Acute treatment ?

Answer 6

In tetanic dog, Ca gluconate 0,5 - 1,5 ml/kg over 10 min

Question 7

SC treatment ?

Answer 7

Risk of calcinosis cutis, not recommanded anymore

Question 8

PTH treatment ? Chronic treatment

Answer 8

PTH Not commercially available

Calcitriol : 20 - 40 ng/kg/day for 4 days, then 10 - 20 ng/kg/day
Shorter life time than ergocalciférol

Oral calcium should be provided initially then tappered after 1 week of calcitriol