Under this heading Trasbot describes hæmoglobinuria and parturition
paresis, but this tends to cover up the more important causes and
phenomena of these diseases, which should be kept in the foreground.
Spinal congestion is undoubtedly a feature of both these affections, and
the sudden onset and rapid recoveries often seen, indicate the absence
of inflammatory action, yet this is but an accompaniment of a
constitutional morbid state which we think fully warrants a special
consideration of each elsewhere (see Hæmoglobinuria; Parturition
paresis).
Apart from these affections congestion habitually merges into myelitis
or spinal meningitis, and may be considered as the initial stage of
these disorders. It owns the same causes and is manifested by closely
allied symptoms, but these are less persistent, and may subside abruptly
into a condition of health. The treatment will be on the same general
lines as for myelitis, but with much better hope of success.