Eclampsia: Causes and Prevention Articles | Dogs

By: www.dog-lovers-online.com Staff

Eclampsia is a condition seen in bitches and generally occurs about the time of whelping, or during the suckling period. This condition is caused by a lowering of the blood calcium which in turn is due to the heavy demands made by various detoxication processes which go on about the time of parturition, and also to the heavy draw on the bitch's reserves by having to produce large amounts of milk. The bitch with a first litter is not commonly affected, it being a condition more usual with the mature mother. Eclampsia is commonest in the bitch with the large litter, especially when she has "done the puppies well".

The first symptom is an alteration in temperament. The bitch appears distressed and fussed for apparently no reason. Some bitches become very excited and may even have hysteria. They then become lethargic, have a sub-normal temperature, may show epileptiform convulsions and, in very advanced cases, become cold, comatose and moribund. Any panting, shivering, or unusual distress in an in-milk or lactating bitch should be regarded as possible eclampsia.

The only specific treatment for this deficiency condition is the replacement of the lacking blood calcium. This can be done adequately only by the administration of calcium by injection, and if the condition is suspected your veterinary surgeon should be informed immediately. There is a degree of urgency in these cases as some bitches rapidly become comatose. There are several steps which, if taken promptly, will greatly retard the onset of the advanced symptoms of the condition. Firstly, remove the puppies, or allow them to remain in the bitch's presence but do not allow them to feed from her. This will prevent any further immediate drain on her calcium reserves. If the bitch has symptoms of hysteria or over-excitability give a small dose of sedative (2—5 gr. pot. bromide). In any case, keep her absolutely still and quiet and as warm as possible. If available, one or two 5 gr. calcium lactate tablets crushed in a little milk may be given by mouth. These should be continued daily after she has received her calcium injection and until the puppies have been weaned. An adequate supply of Vitamin D should also be given during convalescence.

Prevention of Eclampsia

As this condition is due to a deficiency of calcium in the bloodstream of the nursing bitch much can be done to make its onset less likely by the inclusion of calcium, phosphorous, and so on, in the diet. Bitches should be given both milk and bone meal (this is specially prepared for animal feeding and is not the kind sold for gardens) from the sixth week of pregnancy until the puppies are weaned. Milk is a rich natural source of calcium, and bone meal supplies the essential minerals in an easily assimilated form. A rich source of Vitamin D should always be given as this aids the utilisation of calcium and phosphorus—halibut oil or Vivomin (Crookes) are good examples.