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Hopeful · 10-31-2006, 03:47 PM

The authors are affiliated with the Abramson Cancer Center at the Univeristy of Pennsylvania, Philadelphia, PA

The Breast Journal
Volume 12 Page 431 - September 2006
doi:10.1111/j.1075-122X.2006.00297.x
Volume 12 Issue 5 ORIGINAL ARTICLEThe Impact of HER-2 Status on Local Recurrence in Women with Stage I–II Breast Cancer Treated with Breast-Conserving TherapyEleanor E. R. Harris, MD, Wei-Ting Hwang, PhD Eric A. Lee, Keith A. Cengel, MD, PhD, Michael D. Feldman, MD, PhD, Angela DeMichele, MD, Gary Kao, MD, PhD, and Lawrence J. Solin, MD
Abstract: This study was undertaken to determine whether overexpression of the oncogene HER-2 is associated with an increase in local recurrence in women with early stage breast cancer treated with breast-conserving therapy (BCT). A retrospective review of the medical records of all women treated with stage I–II invasive breast cancer from 1991 through 2001 was performed. Of 596 eligible patients treated in that time period, immunohistochemical testing for HER-2 expression was performed in 352 patients (59%): 266 patients (76%) were HER-2 negative and 86 patients (24%) were HER-2 positive. Median follow-up was 5.4 years. The patient characteristics for the two groups were compared for age, pathologic T and N stage, number of positive nodes, estrogen receptor (ER) and progesterone receptor (PR) status, radiation treatment, and use of hormonal therapy or chemotherapy. There were no significant differences in any of these parameters between the two groups (all p ≥ 0.10). Local recurrence at 5 years was 2% in the HER-2-negative group and 0% in the HER-2-positive group (p = 0.15). There was no difference in local recurrence after BCT between HER-2-positive and negative breast cancers at 5 years. Therefore HER-2 overexpression does not appear to be a contraindication to BCT.

Hopeful

10-31-2006, 03:47 PM	#1
Hopeful Senior Member Join Date: Aug 2006 Posts: 3,380	Her2+ early bc patients and local recurrence The authors are affiliated with the Abramson Cancer Center at the Univeristy of Pennsylvania, Philadelphia, PA The Breast Journal Volume 12 Page 431 - September 2006 doi:10.1111/j.1075-122X.2006.00297.x Volume 12 Issue 5 ORIGINAL ARTICLEThe Impact of HER-2 Status on Local Recurrence in Women with Stage I–II Breast Cancer Treated with Breast-Conserving TherapyEleanor E. R. Harris, MD, Wei-Ting Hwang, PhD Eric A. Lee, Keith A. Cengel, MD, PhD, Michael D. Feldman, MD, PhD, Angela DeMichele, MD, Gary Kao, MD, PhD, and Lawrence J. Solin, MD Abstract: This study was undertaken to determine whether overexpression of the oncogene HER-2 is associated with an increase in local recurrence in women with early stage breast cancer treated with breast-conserving therapy (BCT). A retrospective review of the medical records of all women treated with stage I–II invasive breast cancer from 1991 through 2001 was performed. Of 596 eligible patients treated in that time period, immunohistochemical testing for HER-2 expression was performed in 352 patients (59%): 266 patients (76%) were HER-2 negative and 86 patients (24%) were HER-2 positive. Median follow-up was 5.4 years. The patient characteristics for the two groups were compared for age, pathologic T and N stage, number of positive nodes, estrogen receptor (ER) and progesterone receptor (PR) status, radiation treatment, and use of hormonal therapy or chemotherapy. There were no significant differences in any of these parameters between the two groups (all p ≥ 0.10). Local recurrence at 5 years was 2% in the HER-2-negative group and 0% in the HER-2-positive group (p = 0.15). There was no difference in local recurrence after BCT between HER-2-positive and negative breast cancers at 5 years. Therefore HER-2 overexpression does not appear to be a contraindication to BCT. Hopeful