Summary

OBJECTIVE:To determine the effect of preoperative chemotherapy on the volume of tissue excised and the number of breast operations in patients undergoing breast-conserving therapy (BCT). SUMMARY BACKGROUND DATA:Preoperative chemotherapy is increasingly being used for breast cancer and increases rates of BCT. Its impact on the extent of surgery and the number of surgical procedures in BCT has never been fully defined. The extent of surgery in BCT directly affects cosmesis. METHODS:We reviewed the records of 509 consecutive patients with T1-T3, N0-N2 breast cancer who were treated in prospective randomized clinical trials of chemotherapy between 1998 and 2005. We analyzed the final surgical procedure (BCT or mastectomy), the number of operations, and, in patients who underwent BCT, re-excision rates, and the total volume of breast tissue excised [4Pi/3(width/2 x length/2 x height/2)]. RESULTS:A total of 241 patients underwent BCT, and 268 patients underwent mastectomy. Among BCT patients who had initial tumor size >2.0 cm, patients who received preoperative chemotherapy had significantly smaller volumes of breast tissue excised compared with patients who received postoperative chemotherapy (113 cm vs. 213 cm, P = 0.004). The re-excision rate and total number of breast operations did not significantly differ between the groups. Among BCT patients who had initial tumor size < or = 2 cm, preoperative chemotherapy had no impact on volume of breast tissue excised, re-excision rate, or number of breast operations (P > 0.05). CONCLUSIONS:Among patients treated with BCT for larger breast tumors, patients treated with preoperative chemotherapy have less extensive resection, with no change in rates of re-excision.

Background: Although underused, breast conservation therapy (BCT) is an accepted method for treatment of noninvasive and early breast cancer. The purpose of this analysis was to identify factors associated with receiving mastectomy when eligible for BCT.Methods: From a recent experience, 397 patients at the University of Texas M. D. Anderson Cancer Center presented with clinical stage 0, 1, or 11 breast cancer. Demographics and tumor characteristics of patients who underwent BCT versus mastectomy were compared.Results: Of 293 BCT candidates, 203 patients (69%) underwent BCT and 90 patients (31%) received a mastectomy. Of those 90 patients, 66 patients (73%) had documented concerns about receiving BCT. Multivariate analyses showed that widow status was a factor associated with receiving mastectomy at presentation (P = .04).Conclusions: The majonty of BCT candidates with early stage breast cancer undergo BCT. In our study, widow status was a predictive factor of mastectomy in BCT candidates. (c) 2005 Excerpta Medica Inc. All rights reserved.

BACKGROUND. Multiple factors may influence whether patients undergo immediate breast reconstruction along with mastectomy for breast cancer. The authors investigated whether ethnicity was an independent predictor of immediate breast reconstruction.METHODS. The authors identified 1004 patients who underwent mastectomy for breast cancer during the period 2001-2002. The rates of immediate reconstruction among different ethnicities were evaluated using the chi-square test. Logistic regression was used to adjust for covariates, including age and disease stage. Medical records were analyzed to identify factors that influenced each patient's decision for or against immediate breast reconstruction.RESULTS. Three hundred seventy-six women (37.5%) underwent immediate breast reconstruction: This included 20.2% of African-Arnerican women, compared with 40.0% of white women, 42.0% of Hispanic women, 42.2% of Asian women, and 10.0% of Middle Eastern women (P < 0.001). The unadjusted odds ratio (OR) for immediate reconstruction for African-Americans versus whites was 0.38 (95% confidence interval [95% CI], 0.23-0.63; P < 0.001). After multivariate analysis, this disparity persisted, with an adjusted OR of 0.34 (95% Cl, 0.18-0.62; P = 0.001). Asian women had lower rates of immediate reconstruction compared with white women (adjusted OR, 0.50; 95% Cl, 0.24-1.04; P = 0.06). Hispanic women did not have immediate reconstruction rates that differed significantly from white women. Middle Eastern women had lower rates of immediate reconstruction compared with white women (adjusted OR, 0.08; 95% Cl, 0.02-0.38; P = 0.002), but they had a corresponding increase in the rate of delayed reconstruction. In a stepwise analysis of the decision pathway to immediate reconstruction, it was found that African-American women were less likely to be offered referrals for reconstruction, were less likely to accept offered referrals, were less likely to be offered reconstruction, and were less likely to elect reconstruction if it was offered.CONCLUSIONS. African-American women underwent immediate breast reconstruction at significantly lower rates compared with white women, Hispanic women, and Asian women. After adjusting for covariates, including age and disease stage, African-American women and Asian women had lower rates of reconstruction compared with white women. The factors that contribute to these differences warrant further study. (C) 2004 American Cancer Society.

BACKGROUND. Balloon catheter-based accelerated partial breast irradiation (APBI) is an alternative to whole-breast external-beam irradiation during breast-conserving therapy (BCT) for breast carcinoma, but it is limited by the size of the segmental mastectomy cavity. There are scant data on the average or optimal volume of resection (VR) in BCT. The objective of the current study was to evaluate the percentage of patients who would be eligible for balloon catheter-based APBI based on the selection criteria of the American Society of Breast Surgeons and the surgical VR.METHODS. The authors reviewed the medical records of 443 patients with ductal carcinoma in situ (DCIS) or invasive carcinoma treated with BCT. Patient treatment and pathologic data were analyzed to assess VR and eligibility for APBI.RESULTS. BCT was performed for 178 patients with DCIS and 267 patients with invasive breast carcinoma. The majority of invasive carcinomas (63.3%) were infiltrating ductal carcinomas. The median overall lumpectomy volume was 67.61 cm(3), with no significant difference between DCIS and invasive carcinoma (P > 0.05). Although the majority (62.9-82.0%) of patients met the individual selection criteria for APBI, only 27.4% of the cohort was found to be eligible for any type of APBI when the selection criteria were considered together. Based on VR, only approximately one-half of the patients initially eligible for APBI would be candidates for immediate balloon catheter-based APBI using the 70 cm(3) balloon device (13.3%). However, with the new, larger 125 cm(3) balloon device, approximately three-fourths of patients initially eligible for APBI would be eligible for balloon catheter-based APBI at the time of the initial surgical procedure (20.7%). Although not evaluated in the current study, shrinkage of the lumpectomy cavity with time may increase the number of patients eligible based strictly on VR criteria. Patients with a very large VR ( greater than or equal to 125 cm(3)) were more likely to have invasive carcinoma (P = 0.02; hazard ratio [HR], 7.4) and tumors greater than or equal to 5 cm on final pathology (P < 0.01; HR, 22.0).CONCLUSIONS. Approximately one-fifth to one-fourth of patients presenting for BCT may be eligible for balloon catheter-based APBI according to accepted national guidelines and VR. VR must be considered when selecting patients for balloon catheter-based APBI, because a minority of patients will have a lumpectomy cavity that exceeds the size limit of the current balloon device.