The diagnostics and treatment of tropical diseasesStitt, E. R. (Edward Rhodes)
Science
The diagnostics and treatment of tropical diseases
Stitt, E. R. (Edward Rhodes)
Tropical medicine
_Ship Beriberi._—A disease of importance on Scandinavian sailing
ships to which the designation “ship beriberi” has been given
resembles beriberi in that we have oedema particularly of the lower
extremities and at times generalized so that a case would appear to
be one of wet beriberi.
More or less dyspnoea and cardiac palpitation are features of
the disease as of beriberi. In fact death often is the result of
acute cardiac paralysis. The striking point of difference is the
generally reported absence of manifestations of neuritis and Nocht
in an autopsy of a case failed to find evidence of degeneration of
the peripheral nerves.
Another point of distinction is that once the ship arrives in port
and a diet of fresh meat and vegetables is substituted for the one
of sterilized canned meats and desiccated and preserved vegetables,
the patient recovers rapidly so that in one or two weeks there is
no sign of the disease remaining. Beriberics improve at once when
put on a curative diet but the damage done the peripheral nerves
makes complete recovery a matter of weeks or months. Nocht is of
the opinion that ship beriberi is closely related to scurvy as he
found sore gums and haemorrhages into muscles in some of his cases.
He also notes that even in true scurvy there may be cases of dropsy
without the spongy gums and haemorrhages. Dropsy plus sore gums is
not infrequently noted in the beriberi-like affection of the men of
the French fishing fleet off the Newfoundland banks.
Schaumann believes that ship beriberi is due to an acute deficiency
in phosphorus, a chronic deficiency causing beriberi. It is
probable that this disease is caused by a deficiency in certain
vitamines, these being destroyed in the sterilization of canned
meats or by drying vegetables.
_Scurvy._—It will be remembered that in scurvy, which is the classic
food deficiency disease, we have spongy, swollen gums, loose teeth,
oedema about ankles and, in particular, haemorrhages into skin at
site of hair follicles and tumor-like haemorrhages into subcutaneous
and muscular tissues. Haemorrhages into the mucous membranes are not
uncommon. The heart shows marked palpitation and weakness.
The scurvy vitamine is much less stable than the beriberi one. It
is contained in fresh foods only, drying destroying it.
In connection with the question of multiplicity of vitamines
monkeys fed on rice will develop beriberi while if fed on a bread
deficiency diet they develop scurvy.
Public-domain text, read in full here on John Shaqi.
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