Factores pronósticos relacionados con la supervivencia del cáncer de mama

Abstract

These results give consistency to diagnostic and therapeutic criteria for women with breast cancer who receive medical attention in Mexico, taking into consideration the characteristics of the tumor -such as extension, clinical stage and status of the lymph nodes- before making a decision as to the initial therapy.

Taxa de sobrevida na mulher com câncer de mama: estudo de revisão

“…The lowest survival corresponds to stages IIIB (47.5%), IIIA (44.2%) and IV (15%). 43 A similar result was found in the Spanish study, in which the diagnosis of breast cancer was more frequent in stage II (42%) and the survival at five years was 95%. Women diagnosed at early stages have higher percentages of survival.…”

“…46 The epidemiological data encountered indicated that the highest incidence for breast cancer is in the age group of 50 and 60 years, followed by the age group 40 to 49. 3,20,39,43 Thus, this reaffirms the necessity of conducting mammography examinations from the age of 50, as established by the International Consensus for the Control of Breast Cancer, 47 and the Brazilian initiative, which instituted mammography for all women from the age of 40 approaching this reality. This initiative was enacted by Law 11.664/08, which made effective healthcare actions that ensure the prevention, detection, treatment and monitoring of the cancers of the cervix and breast, in the context of the Brazilian National Health System (SUS), with this initiative, anticipation mammography for 40 year olds, being contrary to the international consensus.…”

“…50 Considering the size of the tumor, the diagnosis of breast cancer tends to be performed by self-examination with the tumor greater than 2.0 cm, varying between 2.0 and 5.0 cm. 8,14,20,38,43 This result demonstrates the difficulty for the healthcare systems to diagnose breast cancer in the early stages, especially with the absence of metastasis, when the disease is easy to control and potentially curable.…”

“…11 The presence of lymph node metastases in the breast cancer is a predictive factor for the survival and recurrence of the disease in the women, reducing survival by 40% when compared to the survival of women with non-metastatic disease. 43 In Italy, between 1996 and 2000, the five-year survival rate was 94% in the group detected by the screening program. In the unscreened group the rate was 84%.…”

“…The publications originated from 20 countries: Korea (six studies), [8][9][10][11][12][13] Japan (five studies), [14][15][16][17][18] Brazil (four studies), 3,[19][20][21] Canada (three studies), [22][23][24] United States (three studies), [25][26][27] Italy (three studies), [28][29][30] Switzerland (three studies), [31][32][33] France (two studies), 34,35 China (one study), 36 Singapore and Sweden (one study, study performed in both countries), 37 Scotland (one study), 38 Spain (one study), 39 Finland (one study), 40 India (one study), 41 England (two studies), 42,45 Mexico (one study), 43 Poland (one study), 44 and the Netherlands (one study). 46 From the aim established for this study, the variables to be investigated were defined: the study design, study site/country, number of subjects, age of the subjects, five year survival rate, disease-free five year survival rate, factors that contribute to the increase in survival rates.…”