title: No prognostic impact of flow-cytometric measured DNA ploidy and S-phase fraction in cancer of the uterine cervix: a prospective study of 465 patients.
abstract: In a prospective study of 465 patients with invasive carcinoma of the uterine cervix, the prognostic impact of flow cytometric parameters (ploidy level and fraction of S-phase cells) and clinical variables was evaluated. Median follow-up time was 57 (32-80) months. A total of 230 patients died of cervical cancer during follow-up. Ploidy level had no prognostic significance, neither when analyzed as diploid against nondiploid nor when utilizing different cutoff levels for DNA index (1.3, 1.5, and 1.7). The fraction of S-phase cells (SPF) could be evaluated in 91% of the diploid cases but in only 22% of nondiploid cases. SPF had no prognostic impact. In multivariate analysis, FIGO stage was the only independent prognostic factor (P < 0.001). There was no difference between squamous cell, adeno, and adenosquamous carcinomas. A radical hysterectomy with pelvic lymphadenectomy was performed in 123 cases in stage I-IIA. In this subgroup, tumor size (P = 0.001), infiltration into the parametria (P = 0.005), vessel invasion (P = 0.008), and metastasis to the common iliac nodes (P = 0.013) obtained independent statistical significance in multivariate analysis, while ploidy level had no significance. Neither DNA ploidy nor S-phase analyses should be used in treatment planning.
authors.affiliation: Department of Gynecologic Oncology, Norwegian Radium Hospital, Oslo.
authors.forename: G B
authors.initials: GB
authors.lastname: Kristensen
authors.forename: J
authors.initials: J
authors.lastname: Kaern
authors.forename: V M
authors.initials: VM
authors.lastname: Abeler
authors.forename: B
authors.initials: B
authors.lastname: Hagmar
authors.forename: C G
authors.initials: CG
authors.lastname: Tropé
authors.forename: E O
authors.initials: EO
authors.lastname: Pettersen
mesh_terms: D000230:Adenocarcinoma / Q000235:genetics / Q000401:mortality / Q000473:pathology*; D000328:Adult; D000368:Aged; D018196:Carcinoma, Adenosquamous / Q000235:genetics / Q000401:mortality / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000235:genetics / Q000401:mortality / Q000473:pathology*; D004273:DNA, Neoplasm / Q000032:analysis / Q000235:genetics; D005260:Female; D005434:Flow Cytometry; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D015999:Multivariate Analysis; D011003:Ploidies; D011379:Prognosis; D011446:Prospective Studies; D016196:S Phase; D002583:Uterine Cervical Neoplasms / Q000235:genetics / Q000401:mortality / Q000473:pathology*
chemical_list: D004273:DNA, Neoplasm