Chronic fatigue: a peculiar evolution of eosinophilia myalgia syndrome following treatment with L-tryptophan in four Italian adolescents.
We describe four Italian adolescents in whom a persistent, debilitating fatigue appeared after therapeutic ingestion of products containing L-tryptophan and subsequent to the development of a transient rise in eosinophil count and severe myalgia (Eosinophilia Myalgia Syndrome-EMS). Their clinical picture was indistinguishable from that of the so-called Chronic Fatigue Syndrome. A chronic fatigue may occur after diverse triggering agents and its represents the peculiar clinical evolution of these four paediatric cases of EMS.
Priori
R
R
Istituto di Clinica Medica I, Università La Sapienza, Roma, Italy.
Conti
F
F
Luan
F L
FL
Arpino
C
C
Valesini
G
G
D000293:Adolescent; D016603:Eosinophilia-Myalgia Syndrome / Q000139:chemically induced / Q000150:complications*; D015673:Fatigue Syndrome, Chronic / Q000209:etiology*; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D014364:Tryptophan / Q000009:adverse effects*
D014364:Tryptophan