The long-term survivors of SCLC are described in 3 different types of
study: analysis of prognostic factors of phase II and III chemotherapy
trials (3,4,5,6,7,17,18), epidemiological studies (8) and medical reg
istries of LTS (9,10). A small number of patients with small cell lung
cancer achieve long-term survival. Most of these patients have a dise
ase limited to the chest at the time of diagnosis. The major concerns
of these LTSs are: the relapse of the SCLC, the occurrence of a second
primary tumour and rite occurrence of a disease related to tobacco co
nsumption. About 20% of the LTSs die of noncancer related causes and t
his exceeds the age adjusted mortality. There is a high risk of relaps
e in the first 4 years after the diagnosis; this risk decreases later,
but relapses may be seen until 7 years. Nearly 8% of LTSs developed a
SPTs are alive at 8 years; this indicates that cure is possible in SC
LC, however, these patients account for less than 3% of the overall po
pulation.