American journal of surgery · 2006
Survival rates for breast cancers detected in a community service screening mammogram program.
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Sener Stephen F, Winchester David J, Winchester David P, Barrera Ermilo, Bilimoria Malcolm, Brinkmann Erika, Alwawi Eihab, Rabbitt Sarah, Schermerhorn Miles, Du Hongyan
Аннотация
BACKGROUND: This single-institution long-term prospective study was performed in the setting of community service screening mammography to evaluate the association between the methods of breast cancer detection and survival rates.
METHODS: From 1994 through 2001, data on 1237 patients with breast cancer were collected concurrent with definitive surgical treatment and entered into a comprehensive database.
RESULTS: Mammography was the sole method of detection for 517 (44%) of 1179 Tis-T2 breast cancers. Fifty-seven percent of invasive cancers detectable by mammography alone were less than 1 cm in diameter. For 1049 patients with invasive cancers, the 5-year overall observed survival rates were 94% for 372 whose cancers were detectable by mammogram alone and 87% for 677 whose cancers were detectable by palpation (alone or in combination with mammography) (P = .0002).
CONCLUSIONS: Most of the contribution to breast cancer mortality reduction is from the detection of small nonpalpable cancers, not from adjuvant therapy.
METHODS: From 1994 through 2001, data on 1237 patients with breast cancer were collected concurrent with definitive surgical treatment and entered into a comprehensive database.
RESULTS: Mammography was the sole method of detection for 517 (44%) of 1179 Tis-T2 breast cancers. Fifty-seven percent of invasive cancers detectable by mammography alone were less than 1 cm in diameter. For 1049 patients with invasive cancers, the 5-year overall observed survival rates were 94% for 372 whose cancers were detectable by mammogram alone and 87% for 677 whose cancers were detectable by palpation (alone or in combination with mammography) (P = .0002).
CONCLUSIONS: Most of the contribution to breast cancer mortality reduction is from the detection of small nonpalpable cancers, not from adjuvant therapy.