[Papillary carcinoma of the thyroid. A uni- and multivariate analysis of the factors affecting the prognosis inclusive of surgical treatment].
METHODS
A total of 463, out of 677 patients operated on for papillary thyroid carcinoma between 1967-1995, were selected, on the basis of a 5-year minimal follow-up (max 28, mean 11.15 +/- 5.29), for uni and multivariate analysis of survival curves. Patient sex, age over and under 45 years, tumour size smaller and larger than 15 mm, stage, any TNM parameter, histological variety, surgical procedure on the thyroid and nodes were the factors assessed in order to express the prognosis.


RESULTS
Male:female ratio was 1:3, the mean age 42.2 years; only 25.9% of patients presented with smaller than 15 mm tumor, about 57% with positive nodes and 8.85% with distant metastases; total or near total thyroidectomy was performed in 86% and nodal dissection in 70% of patients. The 5, 10, 15, 20 year survival rate resulted to be 96.94%, 94.36%, 91.38% and 88.69%; 23 patients, but none aged less than 45 years, died (poorly differentiated and locally advanced carcinoma). Age over 45 years, T4 and M+ stages resulted of high prognostic importance while nodal involvement, interrelated with T and M, showed no independent impact; stage gradually worsened but no difference was found between stage I and II. Adverse effect of male sex resulted from its interrelation with more advanced stages. The relapse rate was found higher in male sex and in patients aged over 45 years, interrelated with T and N extension: no tumor smaller than 15 mm recurred and no relation was found between recurrence and surgical procedure.


CONCLUSIONS
Longer follow-up is needed to compare the higher curative effectiveness of total thyroidectomy and nodal dissection versus more conservative treatments.
Istituto di Chirurgia Generale, Università degli Studi, Padova.
M R
MR
Pelizzo
A
A
Toniato
R
R
Grigoletto
C
C
Bernardi
C
C
Pagetta
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000401:mortality / Q000473:pathology; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000473:pathology / Q000601:surgery; D013965:Thyroidectomy / Q000706:statistics & numerical data; D014463:Ultrasonography
Carcinoma papillare della tiroide. Analisi uni e multivariata dei fattori influenti la prognosi incluso il trattamento chirurgico.