Faculty Bibliography

PURPOSE/OBJECTIVE:Limited outcomes exist in patients who develop an ipsilateral breast tumor recurrence (IBTR) after accelerated partial breast irradiation (APBI). The purpose of this study was to evaluate these outcomes and patterns of failure in our cohort of patients undergoing APBI. METHODS AND MATERIALS/METHODS:A total of 534 patients with early-stage breast cancer were treated with APBI between 1993 and 2010. Clinical, pathologic, and treatment-related variables were analyzed. Clinical outcomes, including further IBTR, regional recurrence, disease-free survival, cause-specific survival, and overall survival were analyzed. RESULTS:Eighteen (3.3%) patients developed an IBTR, for a 5-year actuarial rate of 2.0%; 14 (77.8%) of the recurrences were thought to represent new primary cancers. After IBTR, 13 (72.2%) patients were managed with salvage mastectomy and 4 (22.2%) patients with a second attempt at breast-conserving therapy. Five-year rates of disease-free survival, cause-specific survival, and overall survival after salvage mastectomy for IBTR were 81%, 100%, and 100%, respectively. In the 4 patients treated with a second attempt at breast-conserving therapy, no IBTR, axillary failure, regional recurrence, or distant metastases were noted at 5 years. CONCLUSIONS:IBTRs that developed after APBI resulted in excellent clinical outcomes comparable with those observed after whole-breast irradiation.

PURPOSE/OBJECTIVE:Limited outcomes exist in patients who develop an ipsilateral breast tumor recurrence (IBTR) after accelerated partial breast irradiation (APBI). The purpose of this study was to evaluate these outcomes and patterns of failure in our cohort of patients undergoing APBI. METHODS AND MATERIALS/METHODS:A total of 534 patients with early-stage breast cancer were treated with APBI between 1993 and 2010. Clinical, pathologic, and treatment-related variables were analyzed. Clinical outcomes, including further IBTR, regional recurrence, disease-free survival, cause-specific survival, and overall survival were analyzed. RESULTS:Eighteen (3.3%) patients developed an IBTR, for a 5-year actuarial rate of 2.0%; 14 (77.8%) of the recurrences were thought to represent new primary cancers. After IBTR, 13 (72.2%) patients were managed with salvage mastectomy and 4 (22.2%) patients with a second attempt at breast-conserving therapy. Five-year rates of disease-free survival, cause-specific survival, and overall survival after salvage mastectomy for IBTR were 81%, 100%, and 100%, respectively. In the 4 patients treated with a second attempt at breast-conserving therapy, no IBTR, axillary failure, regional recurrence, or distant metastases were noted at 5 years. CONCLUSIONS:IBTRs that developed after APBI resulted in excellent clinical outcomes comparable with those observed after whole-breast irradiation.

PURPOSE/OBJECTIVE:Limited outcomes exist in patients who develop an ipsilateral breast tumor recurrence (IBTR) after accelerated partial breast irradiation (APBI). The purpose of this study was to evaluate these outcomes and patterns of failure in our cohort of patients undergoing APBI. METHODS AND MATERIALS/METHODS:A total of 534 patients with early-stage breast cancer were treated with APBI between 1993 and 2010. Clinical, pathologic, and treatment-related variables were analyzed. Clinical outcomes, including further IBTR, regional recurrence, disease-free survival, cause-specific survival, and overall survival were analyzed. RESULTS:Eighteen (3.3%) patients developed an IBTR, for a 5-year actuarial rate of 2.0%; 14 (77.8%) of the recurrences were thought to represent new primary cancers. After IBTR, 13 (72.2%) patients were managed with salvage mastectomy and 4 (22.2%) patients with a second attempt at breast-conserving therapy. Five-year rates of disease-free survival, cause-specific survival, and overall survival after salvage mastectomy for IBTR were 81%, 100%, and 100%, respectively. In the 4 patients treated with a second attempt at breast-conserving therapy, no IBTR, axillary failure, regional recurrence, or distant metastases were noted at 5 years. CONCLUSIONS:IBTRs that developed after APBI resulted in excellent clinical outcomes comparable with those observed after whole-breast irradiation.

PURPOSE/OBJECTIVE:Limited outcomes exist in patients who develop an ipsilateral breast tumor recurrence (IBTR) after accelerated partial breast irradiation (APBI). The purpose of this study was to evaluate these outcomes and patterns of failure in our cohort of patients undergoing APBI. METHODS AND MATERIALS/METHODS:A total of 534 patients with early-stage breast cancer were treated with APBI between 1993 and 2010. Clinical, pathologic, and treatment-related variables were analyzed. Clinical outcomes, including further IBTR, regional recurrence, disease-free survival, cause-specific survival, and overall survival were analyzed. RESULTS:Eighteen (3.3%) patients developed an IBTR, for a 5-year actuarial rate of 2.0%; 14 (77.8%) of the recurrences were thought to represent new primary cancers. After IBTR, 13 (72.2%) patients were managed with salvage mastectomy and 4 (22.2%) patients with a second attempt at breast-conserving therapy. Five-year rates of disease-free survival, cause-specific survival, and overall survival after salvage mastectomy for IBTR were 81%, 100%, and 100%, respectively. In the 4 patients treated with a second attempt at breast-conserving therapy, no IBTR, axillary failure, regional recurrence, or distant metastases were noted at 5 years. CONCLUSIONS:IBTRs that developed after APBI resulted in excellent clinical outcomes comparable with those observed after whole-breast irradiation.

PURPOSE/OBJECTIVE:Limited outcomes exist in patients who develop an ipsilateral breast tumor recurrence (IBTR) after accelerated partial breast irradiation (APBI). The purpose of this study was to evaluate these outcomes and patterns of failure in our cohort of patients undergoing APBI. METHODS AND MATERIALS/METHODS:A total of 534 patients with early-stage breast cancer were treated with APBI between 1993 and 2010. Clinical, pathologic, and treatment-related variables were analyzed. Clinical outcomes, including further IBTR, regional recurrence, disease-free survival, cause-specific survival, and overall survival were analyzed. RESULTS:Eighteen (3.3%) patients developed an IBTR, for a 5-year actuarial rate of 2.0%; 14 (77.8%) of the recurrences were thought to represent new primary cancers. After IBTR, 13 (72.2%) patients were managed with salvage mastectomy and 4 (22.2%) patients with a second attempt at breast-conserving therapy. Five-year rates of disease-free survival, cause-specific survival, and overall survival after salvage mastectomy for IBTR were 81%, 100%, and 100%, respectively. In the 4 patients treated with a second attempt at breast-conserving therapy, no IBTR, axillary failure, regional recurrence, or distant metastases were noted at 5 years. CONCLUSIONS:IBTRs that developed after APBI resulted in excellent clinical outcomes comparable with those observed after whole-breast irradiation.

BACKGROUND:Limited data exist on the use of accelerated partial breast irradiation (APBI) in patients with ductal carcinoma in situ (DCIS). The purpose of this analysis was to evaluate clinical outcomes after APBI in patients with DCIS. PATIENTS AND METHODS/METHODS:Between December 2002 and December 2010, 99 patients with DCIS underwent APBI as part of their breast-conserving therapy (BCT). Partial breast irradiation techniques included interstitial brachytherapy, balloon-based brachytherapy, and 3-dimensional conformal radiotherapy (3D-CRT). Clinical outcomes including local recurrence, regional recurrence, disease-free survival (DFS), cause-specific survival, and overall survival (OS) were analyzed. RESULTS:Mean follow up was 3.0 years, with a mean patient age of 61.8 years. At 5 years, the rates of local recurrence and regional recurrence were 1.4% and 0%, respectively. Overall survival was 94%, whereas cause-specific survival was 100%. No difference was noted in local control for each treatment technique. When comparing rates using the Eastern Cooperative Oncology Group (ECOG) E-5194 trial groupings, the rate of local recurrence in our cohort was 2.0% for patients with grade I/II disease < 2.5 cm and 0% for grade III < 1.0 cm, representing a 50% and 100% decrease, respectively, in local recurrence compared with excision alone. CONCLUSIONS:Patients with DCIS treated with APBI had excellent clinical outcomes regardless of the APBI technique used. Until the publication of prospective phase III trials, these data confirm previous reports highlighting the efficacy of APBI in the treatment of noninvasive carcinoma of the breast.

BACKGROUND:Limited data exist on the use of accelerated partial breast irradiation (APBI) in patients with ductal carcinoma in situ (DCIS). The purpose of this analysis was to evaluate clinical outcomes after APBI in patients with DCIS. PATIENTS AND METHODS/METHODS:Between December 2002 and December 2010, 99 patients with DCIS underwent APBI as part of their breast-conserving therapy (BCT). Partial breast irradiation techniques included interstitial brachytherapy, balloon-based brachytherapy, and 3-dimensional conformal radiotherapy (3D-CRT). Clinical outcomes including local recurrence, regional recurrence, disease-free survival (DFS), cause-specific survival, and overall survival (OS) were analyzed. RESULTS:Mean follow up was 3.0 years, with a mean patient age of 61.8 years. At 5 years, the rates of local recurrence and regional recurrence were 1.4% and 0%, respectively. Overall survival was 94%, whereas cause-specific survival was 100%. No difference was noted in local control for each treatment technique. When comparing rates using the Eastern Cooperative Oncology Group (ECOG) E-5194 trial groupings, the rate of local recurrence in our cohort was 2.0% for patients with grade I/II disease < 2.5 cm and 0% for grade III < 1.0 cm, representing a 50% and 100% decrease, respectively, in local recurrence compared with excision alone. CONCLUSIONS:Patients with DCIS treated with APBI had excellent clinical outcomes regardless of the APBI technique used. Until the publication of prospective phase III trials, these data confirm previous reports highlighting the efficacy of APBI in the treatment of noninvasive carcinoma of the breast.

BACKGROUND:Limited data exist on the use of accelerated partial breast irradiation (APBI) in patients with ductal carcinoma in situ (DCIS). The purpose of this analysis was to evaluate clinical outcomes after APBI in patients with DCIS. PATIENTS AND METHODS/METHODS:Between December 2002 and December 2010, 99 patients with DCIS underwent APBI as part of their breast-conserving therapy (BCT). Partial breast irradiation techniques included interstitial brachytherapy, balloon-based brachytherapy, and 3-dimensional conformal radiotherapy (3D-CRT). Clinical outcomes including local recurrence, regional recurrence, disease-free survival (DFS), cause-specific survival, and overall survival (OS) were analyzed. RESULTS:Mean follow up was 3.0 years, with a mean patient age of 61.8 years. At 5 years, the rates of local recurrence and regional recurrence were 1.4% and 0%, respectively. Overall survival was 94%, whereas cause-specific survival was 100%. No difference was noted in local control for each treatment technique. When comparing rates using the Eastern Cooperative Oncology Group (ECOG) E-5194 trial groupings, the rate of local recurrence in our cohort was 2.0% for patients with grade I/II disease < 2.5 cm and 0% for grade III < 1.0 cm, representing a 50% and 100% decrease, respectively, in local recurrence compared with excision alone. CONCLUSIONS:Patients with DCIS treated with APBI had excellent clinical outcomes regardless of the APBI technique used. Until the publication of prospective phase III trials, these data confirm previous reports highlighting the efficacy of APBI in the treatment of noninvasive carcinoma of the breast.

BACKGROUND:Limited data exist on the use of accelerated partial breast irradiation (APBI) in patients with ductal carcinoma in situ (DCIS). The purpose of this analysis was to evaluate clinical outcomes after APBI in patients with DCIS. PATIENTS AND METHODS/METHODS:Between December 2002 and December 2010, 99 patients with DCIS underwent APBI as part of their breast-conserving therapy (BCT). Partial breast irradiation techniques included interstitial brachytherapy, balloon-based brachytherapy, and 3-dimensional conformal radiotherapy (3D-CRT). Clinical outcomes including local recurrence, regional recurrence, disease-free survival (DFS), cause-specific survival, and overall survival (OS) were analyzed. RESULTS:Mean follow up was 3.0 years, with a mean patient age of 61.8 years. At 5 years, the rates of local recurrence and regional recurrence were 1.4% and 0%, respectively. Overall survival was 94%, whereas cause-specific survival was 100%. No difference was noted in local control for each treatment technique. When comparing rates using the Eastern Cooperative Oncology Group (ECOG) E-5194 trial groupings, the rate of local recurrence in our cohort was 2.0% for patients with grade I/II disease < 2.5 cm and 0% for grade III < 1.0 cm, representing a 50% and 100% decrease, respectively, in local recurrence compared with excision alone. CONCLUSIONS:Patients with DCIS treated with APBI had excellent clinical outcomes regardless of the APBI technique used. Until the publication of prospective phase III trials, these data confirm previous reports highlighting the efficacy of APBI in the treatment of noninvasive carcinoma of the breast.

BACKGROUND:Limited data exist on the use of accelerated partial breast irradiation (APBI) in patients with ductal carcinoma in situ (DCIS). The purpose of this analysis was to evaluate clinical outcomes after APBI in patients with DCIS. PATIENTS AND METHODS/METHODS:Between December 2002 and December 2010, 99 patients with DCIS underwent APBI as part of their breast-conserving therapy (BCT). Partial breast irradiation techniques included interstitial brachytherapy, balloon-based brachytherapy, and 3-dimensional conformal radiotherapy (3D-CRT). Clinical outcomes including local recurrence, regional recurrence, disease-free survival (DFS), cause-specific survival, and overall survival (OS) were analyzed. RESULTS:Mean follow up was 3.0 years, with a mean patient age of 61.8 years. At 5 years, the rates of local recurrence and regional recurrence were 1.4% and 0%, respectively. Overall survival was 94%, whereas cause-specific survival was 100%. No difference was noted in local control for each treatment technique. When comparing rates using the Eastern Cooperative Oncology Group (ECOG) E-5194 trial groupings, the rate of local recurrence in our cohort was 2.0% for patients with grade I/II disease < 2.5 cm and 0% for grade III < 1.0 cm, representing a 50% and 100% decrease, respectively, in local recurrence compared with excision alone. CONCLUSIONS:Patients with DCIS treated with APBI had excellent clinical outcomes regardless of the APBI technique used. Until the publication of prospective phase III trials, these data confirm previous reports highlighting the efficacy of APBI in the treatment of noninvasive carcinoma of the breast.