Accelerated partial breast irradiation with 3-dimensional conformal and image-guided intensity-modulated radiotherapy following breast conserving surgery - 7-Year results of a phase II trial.

PURPOSE: To present the 7-year results of accelerated partial breast irradiation (APBI) using three-dimensional conformal (3D-CRT) and image-guided intensity-modulated radiotherapy (IG-IMRT) following breast-conserving surgery (BCS). PATIENTS AND METHODS: Between 2006 and 2014, 104 patients were treated with APBI given by means of 3D-CRT using 3-5 non-coplanar, isocentric wedged fields, or IG-IMRT using kV-CBCT. The total dose of APBI was 36.9 Gy (9 × 4.1 Gy) using twice-a-day fractionation. Survival results, side effects and cosmetic results were assessed. RESULTS: At a median follow-up of 90 months three (2.9%) local recurrences, one (0.9%) regional recurrence and two (1.9%) distant metastases were observed. The 7-year local (LRFS), recurrence free survival was 98.9%. The 7-year disease-free (DFS), metastases free (MFS) and overall survival (OS) was 94.8%, 97.9% and 94.8%, respectively. Late side effects included G1 skin toxicity in 15 (14.4%), G1, G2, and G3 fibrosis in 26 (25%), 3 (2.9%) and 1 (0.9%) patients respectively. Asymptomatic (G1) fat necrosis occurred in 10 (9.6%) patients. No ≥ G2 or higher late side effects occurred with IMRT. The rate of excellent/good and fair/poor cosmetic results was 93.2% and 6.8%, respectively. CONCLUSION: 7-year results of APBI with 3D-CRT and IG-IMRT are encouraging. Toxicity profile and local tumor control are comparable to other series using multicatheter interstitial brachytherapy. Therefore, these external beam APBI techniques are valid alternatives to whole breast irradiation and brachytherapy based APBI.

Implementation of Stereotactic Accelerated Partial Breast Irradiation Using Cyber-Knife - Technical Considerations and Early Experiences of a Phase II Clinical Study.

To report the implementation, dosimetric results of and early experiences with stereotactic accelerated partial breast irradiation (SAPBI) following breast conserving surgery (BCS) for postmenopausal low-risk St I-II invasive breast cancer (IBC) patients. Between November 2018 and August 2019, 27 patients were registered in our phase II prospective study. SAPBI was performed with Cyber-Knife (CK) M6 machine, in 4 daily fractions of 6.25 Gy to a total dose of 25 Gy. Respiratory movements were followed with implanted gold markers and Synchrony system. Corrections for patient displacement and respiratory movement during treatment were performed with the robotic arm. Early side effects, cosmetic results, and dosimetric parameters were assessed. The average volume of the surgical cavity, clinical target volume (CTV), and planning target volume (PTV_EVAL) were 8.1 cm3 (range: 1.75-27.3 cm3), 55.3 cm3 (range: 26.2-103.5 cm3), and 75.7 cm3 (range: 40-135.4 cm3), respectively. The mean value of the PTV_eval/whole breast volume ratio was 0.09 (range: 0.04-0.19). No grade 2 or worst acute side-effect was detected. Grade 1 (G1) erythema occurred in 6 (22.2%) patients, while G1 oedema was reported by 3 (11.1%) cases. G1 pain was observed in 1 (3.4%) patient. Cosmetic result were excellent in 17 (62.9%) and good in 10 (37.1%) patients. SAPBI with CK is a suitable and practicable technique for the delivery of APBI after BCS for low-risk, St. I-II. IBC. Our early findings are encouraging, CK-SAPBI performed with four daily fractions is convenient and perfectly tolerated by the patients.

Evaluation of the modified Regnault "B" technique as a standard level II oncoplastic breast-conserving surgery / A módosított Regnault "B" emlomegtartó mutét mint II. szintu standard onkoplasztikus emlosebészeti technika

INTRODUCTION AND AIM: This study aimed to describe the modified Regnault "B" oncoplastic technique as a standard volume-displacement level II oncoplastic breast-conserving surgery and the related clinicopathological study. METHOD: A retrospective, single-centre study was performed between April 2012 and October 2018 involving 215 breast-cancer patients. Patient characteristics and postoperative complications were recorded, and the quality of life was rated by questionnaires. Aesthetic outcomes were evaluated with BCCT.core software and a five-point Likert scale. RESULTS: The mean patient age was 53 years (range: 29-81 years), with a median follow-up of 47 months (range: 7-85 months). The average surgery time was 47 min (range: 35-85 min) and the pathological average size of the tumours was 33 mm (range: 18-58 mm). Due to positive surgical margins, 13 (6%) completion re-excisions and 3 (1.4%) mastectomies were performed. In total, 16 complications (7.4%) were recorded. The median Likert scale score was 4.2, and the median overall aesthetic outcome assessed by BCCT.core was 1.3 points. According to the quality of life questionnaire, average points of the results demonstrated a high level of patient satisfaction. CONCLUSION: In medium- to large-breasted patients, the modified Regnault "B" technique is a safe and repeatable level II volume-displacement oncoplastic breast-conservation technique. This technique allows extended removal (20-50% of breast tissue) of T1-T3 tumours from the upper outer quadrant and the border of outer quadrants of the breast with improved aesthetic results. The advantage of this technique is that contralateral symmetrisation is not required, while disadvantage of this technique is the skin incision on the breast skin envelope that can make some difficulties when completion mastectomy is required with immediate reconstruction. Orv Hetil. 2020; 161(24): 1002-1011.

Implementation of image-guided intensity-modulated accelerated partial breast irradiation : Three-year results of a phase II clinical study.

PURPOSE: To report 3­year results of accelerated partial breast irradiation (APBI) using image-guided intensity-modulated radiotherapy (IG-IMRT) following breast conserving surgery (BCS) for low-risk early invasive breast cancer. PATIENTS AND METHODS: Between July 2011 and March 2014, 60 patients with low-risk early invasive breast cancer underwent BCS and were enrolled in this phase II prospective study. The total dose was 36.9 Gy (9 fractions of 4.1 Gy, two fractions/day). Patient setup errors were detected in LAT, LONG and VERT directions. Local tumour control, survival results, early and late side effects and cosmetic outcome were assessed. RESULTS: At a median follow-up of 39 months, all patients were alive and neither locoregional nor distant failure occurred. One contralateral breast cancer and two new primary malignancies outside the breast were observed. No grade (G) 3-4 acute toxicity was detected. G1 and G2 erythema occurred in 21 (35%) and 2 (3.3%) patients, respectively; while G1 oedema was observed in 23 (38.8%) cases. G1 and G2 pain was reported by 6 (10%) and 2 (3.3%) patients, respectively. Among the late radiation side effects, G1 pigmentation or telangiectasia, G1 fibrosis and G1 asymptomatic fat necrosis occurred in 10 (16.7%), 7 (11.7%) and 3 (5%) patients, respectively. No ≥ G2 late toxicity was detected. Cosmetic outcome was excellent in 43 (71.7%) and good in 17 (28.3%) patients. CONCLUSION: IG-IMRT is a reproducible and feasible technique for delivery of external beam APBI following BCS for treatment of low-risk, early-stage invasive breast carcinoma. In order to avoid toxicity, image guidance performed before each radiation fraction is necessary to minimize the PTV. Three-year results are promising, early and late radiation side-effects are minimal, and cosmetic results are excellent to good.

[Evaluation of clinicopathological findings and cosmetic outcome of 100 immediate postmastectomy breast reconstruction cases]. / Azonnali, postmastectomiás emlorekonstrukciókkal szerzett tapasztalatok. Száz eset klinikopatológiai utánkövetése és a kozmetikai eredmények felmérése.

INTRODUCTION: Immediate breast reconstruction provides oncological safety, requires longer operation time. It does not influence the initiation of adjuvant therapy and radiological control, and results in favourable cosmetic outcome. AIM: Assessing the Hungarian data of immediate postmastectomy breast reconstructions, and comparing them to international findings. METHOD: Between May, 2011 and September, 2014 121 therapeutic and prophylactic, postmastectomy immediate breast reconstructions were performed in 100 patients. The clinico-pathological findings were assessed retrospectively, and surgical, oncological and cosmetic outcomes were evaluated statistically. RESULTS: The mean age of patients was 42.6 years, the follow up time was 29.4 months, and the duration of operation was 132 minutes. Skin-sparing mastectomy was performed most commonly (64%) with submuscular tissue expander placement (70%). Early postoperative complication was identified in 18 patients, and loco-regional recurrence in 1 patient. Most patients (89%) were satisfied with the cosmetic outcome. The average initiation time of adjuvant therapy was 4.8 weeks. CONCLUSIONS: Immediate breast reconstruction is a safe and effective option in line with international findings. Orv. Hetil., 2016, 157(46), 1830-1838.

[Accelerated partial breast irradiation with image-guided intensity-modulated radiotherapy following breast-conserving surgery - preliminary results of a phase II clinical study]. / Gyorsított, részleges külsõ emlõbesugárzás képvezérelt, intenzitásmodulált radioterápiával emlõmegtartó mûtét után - Fázis II klinikai vizsgálat elõzetes eredményei.

The purpose of the study was to implement accelerated partial breast irradiation (APBI) by means of image-guided intensity-modulated radiotherapy (IG-IMRT) following breast-conserving surgery (BCS) for low-risk early invasive breast cancer. Between July 2011 and March 2014, 60 patients with low-risk early invasive (St I-II) breast cancer who underwent BCS were enrolled in our phase II prospective study. Postoperative APBI was given by means of step and shoot IG-IMRT using 4 to 5 fields to a total dose of 36.9 Gy (9×4.1 Gy) using a twice-a-day fractionation. Before each fraction, series of CT images were taken from the region of the target volume using a kV CT on-rail mounted in the treatment room. An image fusion software was used for automatic image registration of the planning and verification CT images. Patient set-up errors were detected in three directions (LAT, LONG, VERT), and inaccuracies were adjusted by automatic movements of the treatment table. Breast cancer related events, acute and late toxicities, and cosmetic results were registered and analysed. At a median follow-up of 24 months (range 12-44) neither locoregional nor distant failure was observed. Grade 1 (G1), G2 erythema, G1 oedema, and G1 and G2 pain occurred in 21 (35%), 2 (3.3%), 23 (38.3%), 6 (10%) and 2 (3.3%) patients, respectively. No G3-4 acute side effects were detected. Among late radiation side effects G1 pigmentation, G1 fibrosis, and G1 fat necrosis occurred in 5 (8.3%), 7 (11.7%), and 2 (3.3%) patients, respectively. No ≥G2 late toxicity was detected. Excellent and good cosmetic outcome was detected in 45 (75%) and 15 (25%) patients. IG-IMRT is a reproducible and feasible technique for the delivery of APBI following conservative surgery for the treatment of low-risk, early-stage invasive breast carcinoma. Preliminary results are promising, early radiation side effects are minimal, and cosmetic results are excellent.

Subcutaneous calcification as a delayed complication of radiotherapy: a case report and review of the literature.

Subcutaneous calcification following radiotherapy is a very rare late complication. Here we report a case of radiotherapy for Hodgkin's disease in a patient with ichthyosis. Our review of the literature revealed that subcutaneous calcifications occurred in previously normal skin following irradiation. In our case the calcification developed in abnormal skin after telecobalt radiotherapy for mediastinal Hodgkin's disease. Ichthyosis is a systemic cutaneous disease and may increase the risk of late radiation complications.

Angiosarcoma after conservation treatment for breast carcinoma: our experience and a review of the literature.

The development of angiosarcoma of the breast is a recognized complication of breast conservation therapy (BCT), but the evolution, prevalence, and outcome have not been accurately established. We sought to evaluate and review the clinicopathologic, prognostic, and treatment attributes of angiosarcoma arising in the irradiated breast after BCT. We conducted a retrospective chart and slide review of 8 patients seen between 1996 and 2004 with a diagnosis of secondary angiosarcoma. All were treated with mastectomy. Clinical and histopathologic findings were studied and previously reported cases were reviewed. Primary surgery-related breast edema and cellulitis was observed in 7 and 5 patients of the 8 patients studied, respectively. Postirradiation breast edema and grade 2/3 fibrosis occurred in 5 and 8 patients, respectively. The mean age of the patients at onset of the breast cancer and angiosarcoma was 65 and 72 years, respectively. The mean latency period between the treatment of the breast cancer and the diagnosis of angiosarcoma was 75 months. The actuarial rate of 2-year survival for patients presented with single (n = 4) compared with multiple (n = 4) skin lesions was 50% and 0%, respectively (P = .0233). The estimated incidence of angiosarcoma after BCT was found to be 0.14 %. BCT-associated angiosarcoma arises after a relatively brief interval, and breast edema-fibrosis can possibly contribute to its development. Special attention should be paid to skin changes occurring after BCT. The extent of skin lesions is predictive of survival. As shown by a review of the literature, angiosarcomas are often resistant to surgery, chemotherapy, and radiotherapy, and targeted therapy against tumor biological properties may be a new approach to angiosarcoma treatment.

[Local relapse in young (< or = 40 years) women with breast cancer after mastectomy or breast conserving surgery: 15-year results]. / Lokális recidíva fiatal (< or = 40 év) emlorákos betegeknél emlomegtartó mutét vagy mastectomia után: 15 éves eredmények.

PURPOSE: Data from various sources indicate that after breast conserving surgery (BCS), younger patients have a high risk of local relapse, but there is insufficient evidence about the risk of post-mastectomy local recurrence. This study investigates the risk of local recurrence for young (< or = 40 years) patients treated with either conservative or radical surgery, with or without radiotherapy (RT). METHODS: 148 young (< or = 40 years) women with early invasive breast cancer underwent axillary dissection and mastectomy (n = 92) or BCS (n = 56) between January 1983 and December 1997. When adjuvant RT was given, the median dose was 50 Gy. The risk factors of local recurrence were estimated by uni- and multivariate analysis. RESULTS: At a median follow-up time of 199 months 60 (40.5%) women died of breast cancer. The type of surgery (mastectomy vs. wide tumour excision) had no significant impact on breast cancer-specific survival. The crude rate of local relapse for nonirradiated mastectomy and BCS patients was 24% and 75% (p = 0.0041), and for irradiated patients 4% and 23%, respectively (p = 0.0091). After mastectomy in univariate analysis nodal status (negative vs. positive) and RT (no vs. yes) were significant predictors of local control, but tumour size (T1 vs. T2) and histological grade (1-2 vs. 3) were not. In multivariate analysis both nodal involvement and omission of RT remained independent significant negative predictors of local control. After BCS in univariate analysis extensive intraductal component (EIC, negative vs. positive) and RT (no vs. yes) were significant predictors of local control, but tumour size (T1 vs. T2), nodal status (N0 vs. N1) and histological grade (1-2 vs. 3) were not. In multivariate analysis omission of RT and presence of EIC remained independent significant negative predictors of local control. The 15-year actuarial rate of local relapse was 29% for irradiated, and 75% for nonirradiated BCS patients (RR, 0.21; 95% CI, 0.07-0.55; p = 0.0052). The 15-year actuarial rate of local recurrence was 6% for irradiated, and 46% for nonirradiated node-positive mastectomy patients (RR, 0.12; 95% CI, 0.06-0.96; p = 0.0095). CONCLUSION: The incidence of local recurrence is high for young patients treated either with BCS or mastectomy, and RT significantly reduces the risk. The use of postmastectomy RT in node-positive patients gives a good local control. The efficacy of BCS and RT as a treatment modality for young patients needs further investigations.