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Rahimi A, Zhang Y, Kim DW, Morgan H, Hossain F, Leitch M, Wooldridge R, Seiler S, Goudreau S, Haley B, Rao R, Rivers A, Spangler A, Ahn C, Stevenson S, Staley J, Albuquerque K, Ding C, Gu X, Zhao B, Timmerman R. Risk Factors for Fat Necrosis After Stereotactic Partial Breast Irradiation for Early-Stage Breast Cancer in a Phase 1 Clinical Trial. Int J Radiat Oncol Biol Phys 2020; 108:697-706. [PMID: 32464155 DOI: 10.1016/j.ijrobp.2020.05.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE This study reports predictive dosimetric and physiologic factors for fat necrosis after stereotactic-partial breast irradiation (S-PBI). METHODS AND MATERIALS Seventy-five patients with ductal carcinoma-in situ or invasive nonlobular epithelial histologies stage 0, I, or II, with tumor size <3 cm were enrolled in a dose-escalation, phase I S-PBI trial between January 2011 and July 2015. Fat necrosis was evaluated clinically at each follow-up. Treatment data were extracted from the Multiplan Treatment Planning System (Cyberknife, Accuray). Univariate and stepwise logistic regression analyses were conducted to identify factors associated with palpable fat necrosis. RESULTS With a median follow-up of 61 months (range: 4.3-99.5 months), 11 patients experienced palpable fat necrosis, 5 cases of which were painful. The median time to development of fat necrosis was 12.7 months (range, 3-42 months). On univariate analyses, higher V32.5-47.5 Gy (P < .05) and larger breast volume (P < .01) were predictive of any fat necrosis; higher V35-50 Gy (P < .05), receiving 2 treatments on consecutive days (P = .02), and higher Dmax (P = .01) were predictive of painful fat necrosis. On multivariate analyses, breast volume larger than 1063 cm3 remained a predictive factor for any fat necrosis; receiving 2 treatments on consecutive days and higher V45 Gy were predictive of painful fat necrosis. Breast laterality, planning target volume (PTV), race, body mass index, diabetic status, and tobacco or drug use were not significantly associated with fat necrosis on univariate analysis. CONCLUSIONS Early-stage breast cancer patients treated with breast conserving surgery and S-PBI in our study had a fat necrosis rate comparable to other accelerated partial breast irradiation modalities, but S-PBI is less invasive. To reduce risk of painful fat necrosis, we recommend not delivering fractions on consecutive days; limiting V42.5 < 50 cm3, V45 < 20 cm3, V47.5 < 1 cm3, Dmax ≤ 48 Gy and PTV < 100 cm3 when feasible; and counseling patients about the increased risk for fat necrosis when constraints are not met and for those with breast volume >1000 cm3.
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Affiliation(s)
- Asal Rahimi
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Yuanyuan Zhang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Dong W Kim
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Howard Morgan
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ferzana Hossain
- Medical School, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Marilyn Leitch
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rachel Wooldridge
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Stephen Seiler
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sally Goudreau
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Barbara Haley
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Roshni Rao
- Department of Surgery, Columbia University, New York, New York
| | - Aeisha Rivers
- Department of Surgery, Memorial Health care System, Miramar, Florida
| | - Ann Spangler
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chul Ahn
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Stella Stevenson
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jason Staley
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Kevin Albuquerque
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Chuxiong Ding
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Xuejun Gu
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Bo Zhao
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robert Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
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Fozza A, Giannelli F, Blandino G, Bosetti D, Milanese M, Agostinelli S, Garelli S, Corvò R, Guenzi M. Mono-institutional Italian Experience with a Double-lumen Balloon-brachytherapy Device for Early Breast Cancer: Results at a 5-year Minimum follow-up. TUMORI JOURNAL 2018; 100:163-8. [DOI: 10.1177/030089161410000208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and Background To report the 5-year minimum follow-up in low-risk breast cancer patients treated with a double-lumen balloon-brachytherapy device in one mono-institutional Italian experience. Local control data and cosmetic outcomes were collected and analyzed. Methods Between October 2004 and December 2007, we treated 30 early stage breast cancer patients who underwent conservative surgery followed by adjuvant accelerated partial breast irradiation with a double-lumen balloon-brachytherapy system. Eligibility criteria for the protocol were based on the indications of the American Brachytherapy Society and the American Society of Breast Surgeons. The device was placed inside the lumpectomy cavity during surgery by open technique in all the patients. Computed tomography images and standard X-ray were used for treatment planning. The total irradiation dose was 34 Gy in 10 fractions of 3.4 Gy (twice daily) over 5 days to the lumpectomy cavity. Results Median follow-up was 80.5 months (range, 60–98). No patient developed local recurrence or distant metastasis. At the end of treatment, there was evidence of a symptomatic seroma in 83% of the total patients, with a yearly decreasing trend. However, the incidence of mild and moderate fibrosis progressively increased. Seventy seven percent of the patients were satisfied with their cosmetic results. Conclusions Our findings reinforce the hypothesis that an accelerated double-lumen balloon-breast brachytherapy catheter in selected low-risk patients is safe, and a favorable cosmetic outcome can be achieved.
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Affiliation(s)
- Alessandra Fozza
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
| | - Flavio Giannelli
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
| | - Gladys Blandino
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
| | - Davide Bosetti
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
| | | | | | - Stefania Garelli
- Department of Medical Physics, IRCCS AOU San Martino, IST, Genoa, Italy
| | - Renzo Corvò
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
| | - Marina Guenzi
- Department of Radiotherapy, and IRCCS AOU San Martino, IST, Genoa, Italy
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Wallace AS, Tchatalbachev V, Nelson J, Wang Z, Dale P, Biedermann GB. Long term radiographic findings of breast brachytherapy: Implications of surgical volume. J Surg Oncol 2017; 116:203-207. [PMID: 28445590 PMCID: PMC9744260 DOI: 10.1002/jso.24646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 03/17/2017] [Indexed: 12/14/2022]
Abstract
PURPOSE Little is known about long-term radiographic findings after treatment with accelerated partial breast irradiation (APBI). METHODS Univariate and multivariate analysis of factors leading to formation and resolution of seroma were performed in patients treated with lumpectomy and APBI. RESULTS Post-treatment images of 129 patients were reviewed by one radiologist. Median surgical excision volume was 108.9 cc (range 20.5-681.9). Primary mode of imaging was mammogram. Median time from end of RT to first and last surveillance image was 6 and 54 months, respectively. Median number of images was 7 (range 3-12). Seroma was identified in 98 (76%) patients, with median maximum diameter of 3.9 cm. Forty (41%) patients experienced resolution of seroma, at a median time of 29 months (range 6-74). On univariate analysis, surgical excision volume was associated with seroma formation, and tumor stage and margin re-excision were significant on univariate and multivariate analysis. No factors were associated with seroma resolution. CONCLUSION Seroma formation after APBI resolves around 2.5 years for many patients, but persists for others possibly due to primary tumor and surgical excision volumes. With revised criteria on the definition of positive margins, smaller volumes may lead to decreased risk of seroma formation for future patients.
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Affiliation(s)
- Audrey S. Wallace
- University of Missouri School of Medicine, Columbia,Department of Radiation Oncology, University of Alabama Birmingham
| | | | - Jay Nelson
- University of Missouri School of Medicine, Columbia
| | - Zhenyu Wang
- Department of Radiology, University of Missouri, Columbia
| | - Paul Dale
- Division of Surgical Oncology, Navicent Healthcare & Mercer University School of Medicine
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Tian S, Paster LF, Kim S, Kirstein L, Haffty BG, Ferro A, Amorosa J, Goyal S. Comparison of Mammographic Changes Across Three Different Fractionation Schedules for Early-Stage Breast Cancer. Int J Radiat Oncol Biol Phys 2016; 95:597-604. [PMID: 27034177 DOI: 10.1016/j.ijrobp.2016.01.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 12/09/2015] [Accepted: 01/28/2016] [Indexed: 01/25/2023]
Abstract
PURPOSE As the use of hypofractionated breast radiation therapy (RT) increases, so will the need for long-term data on post-RT mammographic changes. The purpose of the present study was to longitudinally compare the incidence of common mammographic sequelae seen after breast conserving surgery and RT in patients treated with accelerated partial breast irradiation (APBI), hypofractionated whole breast irradiation (HWBI), and conventionally fractionated whole breast irradiation (WBI). METHODS AND MATERIALS Patients treated with either APBI or HWBI after breast conserving therapy and with ≥3 mammograms of the treated breast were identified. They were matched 1:1 by age ±5 years to patients treated with WBI. The mammograms were evaluated for common post-RT breast findings by a mammographer who was unaware of the treatment. The outcomes were analyzed using a cumulative logistic regression model; P<.05 indicated statistically significance. RESULTS Of 89 patients treated with RT from 2006 to 2011, 29 had received APBI, 30 had received HWBI, and 30 had received WBI. Their median age was 60 years (range 33-83). A total of 605 mammograms were evaluated, with a median follow-up of 48 months. The treatment technique did not affect the severity of architectural distortion when the groups were evaluated longitudinally. The likelihood of finding skin thickening decreased with increasing follow-up duration (odds ratio 0.6; P<.001) adjusted for fractionation schemes. No differences were seen with respect to changes in skin thickening, fluid collections, or calcifications among the treatment groups, after adjustment for the follow-up time. The clinical characteristics, including age, race, T stage, and chemotherapy use, were not linked to the likelihood of finding several mammographic phenomena over time. CONCLUSIONS Although specific post-treatment imaging findings evolved over time, RT fractionation did not alter the relative incidence or severity of architectural distortion, skin thickening, fluid collections, or calcifications. These findings will be useful to both radiologists and radiation oncologists when counseling patients regarding follow-up studies after RT.
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Affiliation(s)
- Sibo Tian
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Lina F Paster
- Department of Radiology, Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Sinae Kim
- Biometrics Division, Rutgers Cancer Institute of New Jersey, and Department of Biostatistics, Rutgers School of Public Health, Rutgers, New Jersey
| | - Laurie Kirstein
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Bruce G Haffty
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Adam Ferro
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Judith Amorosa
- Department of Radiology, Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey
| | - Sharad Goyal
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers, New Jersey.
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Huo J, Giordano SH, Smith BD, Shaitelman SF, Smith GL. Contemporary Toxicity Profile of Breast Brachytherapy Versus External Beam Radiation After Lumpectomy for Breast Cancer. Int J Radiat Oncol Biol Phys 2015; 94:709-18. [PMID: 26972643 DOI: 10.1016/j.ijrobp.2015.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 11/25/2015] [Accepted: 12/02/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE We compared toxicities after brachytherapy versus external beam radiation therapy (EBRT) in contemporary breast cancer patients. METHODS AND MATERIALS Using MarketScan healthcare claims, we identified 64,112 women treated from 2003 to 2012 with lumpectomy followed by radiation (brachytherapy vs EBRT). Brachytherapy was further classified by multichannel versus single-channel applicator approach. We identified the risks and predictors of 1-year infectious and noninfectious postoperative adverse events using logistic regression and temporal trends using Cochran-Armitage tests. We estimated the 5-year Kaplan-Meier cumulative incidence of radiation-associated adverse events. RESULTS A total of 4522 (7.1%) patients received brachytherapy (50.2% multichannel vs 48.7% single-channel applicator). The overall risk of infectious adverse events was higher after brachytherapy than after EBRT (odds ratio [OR] = 1.21; 95% confidence interval [CI] 1.09-1.34, P<.001). However, over time, the frequency of infectious adverse events after brachytherapy decreased, from 17.3% in 2003 to 11.6% in 2012, and was stable after EBRT at 9.7%. Beyond 2007, there were no longer excess infections with brachytherapy (P=.97). The overall risk of noninfectious adverse events was higher after brachytherapy than after EBRT (OR=2.27; 95% CI 2.09-2.47, P<.0001). Over time, the frequency of noninfectious adverse events detected increased: after multichannel brachytherapy, from 9.1% in 2004 to 18.9% in 2012 (Ptrend = .64); single-channel brachytherapy, from 12.8% to 29.8% (Ptrend<.001); and EBRT, from 6.1% to 10.3% (Ptrend<.0001). The risk was significantly higher with single-channel than with multichannel brachytherapy (hazard ratio = 1.32; 95% CI 1.03-1.69, P=.03). Of noninfectious adverse events, 70.9% were seroma. Seroma significantly increased breast pain risk (P<.0001). Patients with underlying diabetes, cardiovascular disease, and treatment with chemotherapy had increased infectious and noninfectious adverse events. The 5-year incidences of fat necrosis, breast pain, and rib fracture were slightly higher after brachytherapy than after EBRT (13.7% vs 8.1%, 19.4% vs 16.0%, and 1.6% vs 1.3%, respectively), but the risks were not significantly different for multichannel versus single-channel applicators. CONCLUSION Toxicities after breast brachytherapy were distinct from those after EBRT. Temporal toxicity trends may reflect changing technology and evolving practitioner experience with brachytherapy.
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Affiliation(s)
- Jinhai Huo
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sharon H Giordano
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Benjamin D Smith
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Simona F Shaitelman
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Grace L Smith
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Ibrahim NB, Anandan S, Hartman AL, McSweeney M, Chun J, McKee A, Yang R, Kim C. Radiographic Findings after Treatment with Balloon Brachytherapy Accelerated Partial Breast Irradiation. Radiographics 2015; 35:6-13. [DOI: 10.1148/rg.351140131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ajkay N, Collett AE, Bloomquist EV, Gracely EJ, Frazier TG, Barrio AV. A Comparison of Complication Rates in Early-Stage Breast Cancer Patients Treated with Brachytherapy Versus Whole-Breast Irradiation. Ann Surg Oncol 2014; 22:1140-5. [DOI: 10.1245/s10434-014-4131-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Indexed: 11/18/2022]
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Shah C, Badiyan S, Ben Wilkinson J, Vicini F, Beitsch P, Keisch M, Arthur D, Lyden M. Treatment efficacy with accelerated partial breast irradiation (APBI): final analysis of the American Society of Breast Surgeons MammoSite(®) breast brachytherapy registry trial. Ann Surg Oncol 2013; 20:3279-85. [PMID: 23975302 DOI: 10.1245/s10434-013-3158-4] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Indexed: 01/19/2023]
Abstract
BACKGROUND The purpose of this study was to examine data on treatment efficacy, cosmesis and toxicities for the final analysis of the American Society of Breast Surgeons MammoSite(®) breast brachytherapy registry trial. METHODS A total of 1,449 cases of early-stage breast cancer underwent breast conserving therapy. The single-lumen MammoSite(®) device was used to deliver accelerated partial breast irradiation (APBI) (34 Gy in 3.4 Gy fractions). Of these, 1,255 cases (87 %) had invasive breast cancer (IBC) and 194 cases had DCIS. Median follow-up was 63.1 months with 45 % of all patients having follow-up of 6 years or longer. RESULTS There were 41 cases (2.8 %) that developed an ipsilateral breast tumor recurrence (IBTR) for a 5-year actuarial rate of 3.8 % (3.7 % for IBC and 4.1 % for DCIS). Tumor size (odds ratio [OR] = 1.1, p = 0.03) and estrogen receptor negativity (OR = 3.0, p = 0.0009) were associated with IBTR, while a trend was noted for positive margins (OR = 2.0, p = 0.06) and cautionary/unsuitable status compared with suitable status (OR = 1.8, p = 0.07). The percentage of patients with excellent/good cosmetic results at 60, 72, and 84 months was 91.3, 90.5, and 90.6 %, respectively. The overall rates of fat necrosis and infections remained low at 2.5 and 9.6 % with few late toxicity events beyond 2 years. The overall symptomatic seroma rate was 13.4 and 0.6 % beyond 2 years. CONCLUSIONS The final analysis of treatment efficacy, cosmesis, and toxicity from the American Society of Breast Surgeons MammoSite(®) breast brachytherapy registry trial confirms previously noted excellent results and compares favorably with other forms of APBI with similar follow-up and to outcomes seen in selected patients treated with whole breast irradiation.
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Affiliation(s)
- Chirag Shah
- Department of Radiation Oncology, Summa Health System, Akron, OH, USA.
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Rosenkranz KM, Tsui E, McCabe EB, Gui J, Underhill K, Barth RJ. Increased rates of long-term complications after MammoSite brachytherapy compared with whole breast radiation therapy. J Am Coll Surg 2013; 217:497-502. [PMID: 23830216 DOI: 10.1016/j.jamcollsurg.2013.03.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Revised: 03/12/2013] [Accepted: 03/26/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Due to its short duration of therapy and low rates of local recurrence, women undergoing breast conservation are increasingly opting for partial breast irradiation with the MammoSite (Cytyc/Hologic) catheter. In early follow-up studies, few complications were reported. Few data, however, exist regarding longer-term complications. We compared the long-term local toxicities of MammoSite partial breast irradiation with those resulting from whole breast radiation. STUDY DESIGN This was a retrospective study performed in a single academic medical center. All patients who underwent breast-conserving surgery between 2003 and 2008, who met institutional criteria for brachytherapy, were included. We compared women treated with MammoSite with patients treated with whole breast radiation therapy (WBRT). Endpoints included incidence of palpable masses at the lumpectomy site, telangiectasias, and local recurrence. RESULTS Seventy-one MammoSite patients and 245 WBRT patients were well matched with regard to clinical characteristics. Median follow-up was 4 years. A palpable mass developed at the site of lumpectomy in 27% of the MammoSite patients compared with 7% of the WBRT patients (p < 0.0001). Telangiectasias developed more frequently in the MammoSite group than in the WBRT group (24% vs 4%, p < 0.001). Forty-two percent of patients treated with MammoSite developed a palpable mass, telangectasia, or both. CONCLUSIONS Palpable masses and telangiectasias are frequent long-term complications after MammoSite brachytherapy and occur at a significantly higher rate after MammoSite brachytherapy than after WBRT. This increased rate of long-term local toxicity should be considered when counseling women on options for adjuvant radiation therapy after breast-conserving surgery.
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Affiliation(s)
- Kari M Rosenkranz
- Department of Surgery, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA.
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Ultrasound elastography as an objective diagnostic measurement tool for lymphoedema of the treated breast in breast cancer patients following breast conserving surgery and radiotherapy. Radiol Oncol 2012; 46:284-95. [PMID: 23412910 PMCID: PMC3572897 DOI: 10.2478/v10019-012-0033-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2012] [Accepted: 04/14/2012] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND.: Lymphoedema of the operated and irradiated breast is a common complication following early breast cancer treatment. There is no consensus on objective diagnostic criteria and standard measurement tools. This study investigates the use of ultrasound elastography as an objective quantitative measurement tool for the diagnosis of parenchymal breast oedema. PATIENTS AND METHODS.: The elasticity ratio of the subcutis, measured with ultrasound elastography, was compared with high-frequency ultrasound parameters and subjective symptoms in twenty patients, bilaterally, prior to and following breast conserving surgery and breast irradiation. RESULTS.: Elasticity ratio of the subcutis of the operated breast following radiation therapy increased in 88.9% of patients, was significantly higher than prior to surgery, unlike the non operated breast and significantly higher than the non operated breast, unlike preoperative results. These results were significantly correlated with visibility of the echogenic line, measured with high-frequency ultrasound. Big preoperative bra cup size was a significant risk factor for the development of breast oedema. CONCLUSIONS.: Ultrasound elastography is an objective quantitative measurement tool for the diagnosis of parenchymal breast oedema, in combination with other objective diagnostic criteria. Further research with longer follow-up and more patients is necessary to confirm our findings.
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Accelerated partial breast irradiation using only intraoperative electron radiation therapy in early stage breast cancer. Int J Radiat Oncol Biol Phys 2012; 84:e145-52. [PMID: 22543201 DOI: 10.1016/j.ijrobp.2012.03.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/18/2012] [Accepted: 03/05/2012] [Indexed: 11/20/2022]
Abstract
BACKGROUND We report the results of a single-institution, phase II trial of accelerated partial breast irradiation (APBI) using a single dose of intraoperative electron radiation therapy (IOERT) in patients with low-risk early stage breast cancer. METHODS AND MATERIALS A cohort of 226 patients with low-risk, early stage breast cancer were treated with local excision and axillary management (sentinel node biopsy with or without axillary node dissection). After the surgeon temporarily reapproximated the excision cavity, a dose of 21 Gy using IOERT was delivered to the tumor bed, with a margin of 2 cm laterally. RESULTS With a mean follow-up of 46 months (range, 28-63 months), only 1 case of local recurrence was reported. The observed toxicity was considered acceptable. CONCLUSIONS APBI using a single dose of IOERT can be delivered safely in women with early, low-risk breast cancer in carefully selected patients. A longer follow-up is needed to ascertain its efficacy compared to that of the current standard treatment of whole-breast irradiation.
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12
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Current World Literature. Curr Opin Obstet Gynecol 2012; 24:49-55. [DOI: 10.1097/gco.0b013e32834f97d4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Khan AJ, Arthur D, Vicini F, Beitsch P, Kuerer H, Goyal S, Lyden M, Haffty BG. Six-year analysis of treatment-related toxicities in patients treated with accelerated partial breast irradiation on the American Society of Breast Surgeons MammoSite Breast Brachytherapy registry trial. Ann Surg Oncol 2011; 19:1477-83. [PMID: 22109731 DOI: 10.1245/s10434-011-2133-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Indexed: 12/24/2022]
Abstract
BACKGROUND The American Society of Breast Surgeons (ASBrS) enrolled women in a registry trial to prospectively study patients treated with the MammoSite RTS device. This report presents 6-year data on treatment-related toxicities from the trial. METHODS A total of 1449 primary early-stage breast cancers were treated with accelerated partial breast irradiation (APBI) using the MammoSite device (34 Gy in 10 fractions) in 1440 women. Of these, 1255 case (87%) had invasive breast cancer (IBC) (median size = 10 mm) and 194 cases (13%) had ductal carcinoma in situ (DCIS) (median size = 8 mm). Median follow-up was 59 months. Fisher exact test was performed to correlate categorical covariates with toxicity. RESULTS Breast seromas were reported in 28% of cases (35.5% with open cavity and 21.7% with closed cavity placement). Also, 13% of all treated breasts developed symptomatic seromas, and 77% of these seromas developed during the 1st year after treatment. There were 172 cases (11.9%) that required drainage to correct. Use of chemotherapy and balloon fill >50 cc were associated with the development of symptomatic seromas. Also, 2.3% of patients developed fat necrosis (FN). The incidence of FN during years 1 and 2 were 0.9% and 0.8%, respectively. Seroma formation, use of hormonal therapy, breast infection, and A/B cup size were associated with fat necrosis. There were 138 infections (9.5%) recorded; 98% occurred during the 1st year after treatment. Chemotherapy and seroma formation were associated with the development of infections. CONCLUSIONS Treatment-related toxicities 6 years after treatment with APBI using the MammoSite device are similar to those reported with other forms of APBI with similar follow-up.
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Affiliation(s)
- A J Khan
- Department of Radiation Oncology, Cancer Institute of New Jersey, New Brunswick, NJ, USA.
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