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1.
Plast Reconstr Surg ; 145(3): 491e-498e, 2020 03.
Article in English | MEDLINE | ID: mdl-32097296

ABSTRACT

BACKGROUND: After breast reconstruction, nipple position and other long-term changes in the reconstructed breast relative to the contralateral breast remain poorly understood. In this prospective cohort study, the authors performed serial nipple position measurements over 5 years in patients who had undergone breast reconstruction with a transverse rectus abdominis musculocutaneous (TRAM) flap. The effects of adjuvant radiotherapy on nipple position over time were also investigated. METHODS: The authors studied 150 patients who had undergone nipple-sparing mastectomy, using radial incision followed by immediate unilateral pedicled TRAM flap breast reconstruction. Measurements of sternal notch-to-nipple, midline-to-nipple, and inframammary fold-to-nipple distances were performed 1 day before reconstruction and 6, 12, 36, and 60 months after surgery, on patients' reconstructed and nonoperated breasts. RESULTS: The average sternal notch-to-nipple distance increased in both reconstructed and nonoperated breasts at every follow-up visit, with an average difference of 0.393 cm at the 60-month visit (p < 0.0001). Comparing the pattern of distance change, reconstructed breasts tend to change more slowly than nonoperated breasts until 36 months postoperatively. In irradiated breasts, the sternal notch-to-nipple distance was significantly smaller than in nonirradiated breasts, and nipple position changed minimally between 1 and 3 years after surgery. CONCLUSIONS: Nipple position in TRAM flap-reconstructed breasts changed over time compared with that in nonoperated breasts, especially along the vertical axis. The pattern of nipple position change in reconstructed breasts became similar to nonoperated breasts 3 years after surgery. In patients who had undergone adjuvant radiation therapy, nipple position remained consistent for 1 to 3 years. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Subject(s)
Breast Neoplasms/therapy , Mammaplasty/adverse effects , Myocutaneous Flap/adverse effects , Nipples/anatomy & histology , Rectus Abdominis/transplantation , Adult , Aged , Female , Follow-Up Studies , Humans , Mammaplasty/methods , Mastectomy, Subcutaneous/adverse effects , Middle Aged , Myocutaneous Flap/transplantation , Nipples/radiation effects , Nipples/surgery , Prospective Studies , Radiotherapy, Adjuvant/adverse effects , Treatment Outcome
2.
Lasers Med Sci ; 35(1): 63-69, 2020 Feb.
Article in English | MEDLINE | ID: mdl-31030379

ABSTRACT

Photobiomodulation with low-level laser therapy (PBM-LLLT) has been introduced as a new tool to relieve nipple pain and repair nipple damage in breastfeeding women; however, evidence is needed to assess its effectiveness. The aim was to evaluate the effect of a single application of PBM-LLLT for breastfeeding women with nipple pain and damage; side effects were also collected. We conducted a randomized double-blinded controlled trial with women with nipple damage who were exclusively breastfeeding and rooming-in at Amparo Maternal maternity service, São Paulo, Brazil (May 2016 to May 2017). Women were randomly assigned into laser (n = 40) or control group (n = 40). Intervention was a single irradiation (660 nm, 100 mW, 2 J, 66.66 J/cm2, 3.3 W/cm2, 20 s of irradiation, punctual, and continuous mode) applied directly. Women reported pain levels at recruitment (before and immediately after irradiation), 6 and 24 h after the treatment. Pain level during a breastfeed was assessed using the Visual Analogue Scale (0 to 10). The primary outcome was the level of nipple pain immediately after the laser irradiation. Data were analyzed using hierarchical model and Wald test. At baseline, pain levels were similar (mean of 7.4 in laser group and 7.1 in control group). Women's perception of pain reduced approximately one point in both groups. Thirty-one percent of participants in the laser group (11/36) reported secondary effects, such as tingling (10/36) and pricking (2/36). The laser protocol of a single application was not effective in reducing pain in women with damaged nipples. Tingling sensation may be experienced by women receiving laser treatment for nipple damage.


Subject(s)
Breast Feeding , Low-Level Light Therapy , Nipples/radiation effects , Pain/radiotherapy , Adult , Case-Control Studies , Female , Humans , Infant , Male , Pregnancy , Visual Analog Scale
3.
Breast Cancer ; 26(5): 618-627, 2019 Sep.
Article in English | MEDLINE | ID: mdl-30888580

ABSTRACT

BACKGROUND: Nipple-sparing mastectomy combined with breast reconstruction helps to optimize the contour of the breast after mastectomy. However, the indications for nipple-sparing mastectomy are still controversial. Local radiation to the nipple-areola complex may play some roles in improving the oncological safety of this procedure. METHODS: From January 2014 to December 2017, 41 consecutive patients who underwent nipple-sparing mastectomy combined with Intrabeam intraoperative radiotherapy to the nipple-areola complex flap and breast reconstruction were enrolled in this prospective study. The prescribed radiation dose at the surface of the spherical applicator was 16 Gy. RESULTS: In eight cases, carcinomas were in the central portion of the breast. Partial necrosis of the nipple-areola complex occurred in three cases. Over 90% of patients reported "no or poor sensation" of the nipple-areola complex postoperatively. With a median follow-up time of 26 months, no recurrences or metastases were identified; however, breast-cancer mortality occurred in one patient. Pathologic evaluation of paraffin-embedded sections showed ductal carcinoma in situ in the remaining tissues deep to the nipple-areola complex flap in two patients. Although no further treatment was administered to the nipple-areola complexes postoperatively, no recurrences or metastases were identified 20 months and 24 months later, respectively. Optical microscopy and transmission electron microscopy revealed changes in some normal tissues immediately after Intrabeam intraoperative radiotherapy. Karyopyknosis were observed in gland tissues, and the collagenous fibers became sparse and arranged chaotically. As assessed by thermoluminescence, radiation doses at different sites in the nipple-areola complex flap varied considerably and were about 10 Gy at the areola surface. No Intrabeam intraoperative radiotherapy-related acute or chronic radiation injuries of the lung, heart or bone marrow were identified. CONCLUSIONS: Our findings indicate that Intrabeam intraoperative radiotherapy during nipple-sparing mastectomy combined with breast reconstruction is safe and feasible. TRIAL REGISTRATION: The current study was approved by the Ethics Committee of the First Affiliated Hospital of Guangzhou Medical University (registering order 201750). All participants gave their written informed consent.


Subject(s)
Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Carcinoma, Ductal, Breast/radiotherapy , Carcinoma, Ductal, Breast/surgery , Mastectomy, Subcutaneous/methods , Nipples/radiation effects , Nipples/surgery , Adult , Breast Neoplasms/pathology , Carcinoma, Ductal, Breast/pathology , Combined Modality Therapy/adverse effects , Combined Modality Therapy/methods , Feasibility Studies , Female , Follow-Up Studies , Humans , Intraoperative Period , Mammaplasty/methods , Middle Aged , Neoplasm Metastasis , Neoplasm Recurrence, Local , Neoplasm Staging , Nipples/pathology , Prospective Studies , Radiation Dosage , Surgical Flaps , Treatment Outcome
6.
J Biol Regul Homeost Agents ; 31(1): 237-238, 2017.
Article in English | MEDLINE | ID: mdl-28337898

ABSTRACT

Biological pigments or biochromes are ubiquitous in animals, plants, and simpler organisms such as fungi and bacteria. They serve a wide spectrum of functions from photosynthesis, camouflage, mimicry, photo protection from the environment to attracting mates. The human female nipple areola complex (NAC) is a highly-pigmented area. Currently, the prevailing theory as to the evolution of the pigmented human NAC is based on infant recognition of breast feeding latching zone; however, due to the protruding shape of the nipple and surrounding breast, the authors of this letter believe that the evolutionary advantage of the pigmented NAC has a direct physiological function, namely the initiation of involution at the end of the infant lactation period.


Subject(s)
Mammary Glands, Human/physiology , Melanins/biosynthesis , Nipples/physiology , Pigmentation/physiology , Adaptation, Physiological , Adult , Breast Feeding , Female , Humans , Infant , Mammary Glands, Human/anatomy & histology , Mammary Glands, Human/radiation effects , Nipples/anatomy & histology , Nipples/radiation effects , Ultraviolet Rays
7.
Radiol Med ; 122(3): 171-178, 2017 Mar.
Article in English | MEDLINE | ID: mdl-28000160

ABSTRACT

OBJECTIVE: To perform a meta-analysis to determine the effect of radiotherapy (RT) on nipple-areolar complex (NAC) and skin flap necrosis, and local recurrence in women who undergo nipple-sparing mastectomy (NSM) and immediate breast reconstruction. METHODS: Medline, PubMed, Cochrane, and Google Scholar databases were searched until October 16, 2015. Randomized-controlled-trials, prospective, retrospective, and cohort studies were included. The primary outcome was the NAC necrosis rate, and the secondary outcomes were the skin flap necrosis and local recurrence rates. RESULTS: Of 186 studies identified, 2 prospective and 5 retrospective studies including a total of 3692 patients were included in the meta-analysis. Five, 3, and 2 studies reported data of NAC necrosis (3461 breasts), skin flap necrosis (2490 breasts), and local recurrence (988 breasts), respectively. Pooled results showed no difference in the odds of NAC necrosis [odds ratio (OR) = 1.250, 95% confidence interval (CI) 0.481-3.247, P = 0.647], or local recurrence (OR = 0.564, 95% CI 0.056-5.710, P = 0.627) between patients who received and did not receive RT. Patients treated with RT had a higher likelihood of skin flap necrosis (OR = 2.534, 95% CI 1.720-3.735, P < 0.001). Significant heterogeneity, however, was noted in the analysis of NAC and local recurrence. CONCLUSIONS: Because of the limitations of the small number of studies and heterogeneity in the analysis, this study does not allow drawing any definitive conclusions and highlights the need of well-controlled trials to determine the effect of RT in patients undergoing NSM.


Subject(s)
Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Mastectomy/methods , Neoplasm Recurrence, Local , Nipples/pathology , Organ Sparing Treatments , Radiation Injuries/pathology , Surgical Flaps/pathology , Adult , Breast Neoplasms/pathology , Female , Humans , Mammaplasty , Middle Aged , Necrosis/etiology , Nipples/radiation effects , Odds Ratio , Outcome Assessment, Health Care , Radiotherapy/adverse effects , Sensitivity and Specificity
8.
J Plast Reconstr Aesthet Surg ; 69(5): 617-22, 2016 May.
Article in English | MEDLINE | ID: mdl-26810406

ABSTRACT

INTRODUCTION: After implant-based breast reconstruction, the nipple reconstruction technique must be carefully chosen, especially in patients with a history of radiotherapy. When the contralateral nipple is not available, using a classical dermal-fat local flap may lead to the implant exposure, and consequently, removal. We describe here a simple nipple reconstruction technique, using a strictly dermal local flap and evaluate its complication rate. PATIENTS AND METHODS: All patients who underwent our technique for nipple reconstruction between January 2012 and April 2015 were included in this retrospective study. We described our surgical technique and noted the occurrence of postoperative complications. RESULTS: Forty-nine nipples, in 47 patients with a history of radiotherapy, were reconstructed with our technique. The mean age was 53 years old (range 27-78 years old). The average time between radiotherapy and nipple reconstruction was 42.5 months (range from 4.6 to 274.8 months). The mean follow-up was 30.9 months (range from 6 to 47 months). No implant exposure occurred. Regarding the nipple flap, two partial flap loss and one infection occurred, the whole complication rate was 6.1%. Regarding nipple projection, it was quite low (between 2 and 5 mm) after 6 months, but remained stable. CONCLUSION: Our strictly dermal local flap technique for nipple reconstruction is a safe procedure and represents a good alternative to composite contralateral nipple graft in irradiated patients with an implant-based reconstructed breast.


Subject(s)
Breast Implants , Mammaplasty/methods , Nipples/surgery , Postoperative Complications/epidemiology , Surgical Flaps , Adult , Aged , Female , Follow-Up Studies , Graft Survival , Humans , Mammaplasty/adverse effects , Middle Aged , Nipples/radiation effects , Retrospective Studies , Surgical Flaps/adverse effects , Time Factors
9.
Breastfeed Rev ; 24(2): 27-31, 2016 Jul.
Article in English | MEDLINE | ID: mdl-29211392

ABSTRACT

Breast and nipple pain, nipple damage and mastitis are common reasons given by women for their early cessation of breastfeeding. There are a limited number of effective therapies available to support healing of damaged nipples during lactation. Low level laser therapy is a painless treatment, which appears to accelerate wound healing and ease pain. We present two case studies, which demonstrate the use of low level laser therapy in clinical practice.


Subject(s)
Breast Diseases/radiotherapy , Breast Feeding/adverse effects , Low-Level Light Therapy/methods , Nipples/radiation effects , Adult , Breast Diseases/etiology , Female , Humans , Pain Management/methods , Pain Measurement , Treatment Outcome
10.
Ann Surg Oncol ; 22(1): 46-51, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25037972

ABSTRACT

BACKGROUND: Although guidelines exist for radiation delivery in the setting of mastectomy or breast-conservation therapy, radiation delivery after nipple-sparing mastectomy (NSM) remains variable. Our goal is to determine whether patients who undergo therapeutic NSM are more likely to receive radiation than patients who undergo non-NSM and whether National Comprehensive Cancer Network (NCCN) guidelines for radiation after mastectomy are observed in NSM patients. METHODS: Female patients who underwent NSM or non-NSM for breast cancer from 2006 to 2010 were isolated from the Surveillance, Epidemiology, and End Results database. Univariate analysis stratified by tumor size and lymph node status, and multivariate analyses were used to compare odds of radiation in NSM and mastectomy patients. Adherence to NCCN guidelines based on tumor size and lymph node status was also investigated. RESULTS: A total of 112,817 patients were included: 470 (0.4 %) underwent NSM, and 112,347 (99.6 %) underwent non-NSM. NSM patients with 0 nodes/size ≤2 cm, 0 nodes/size 2-5 cm, and unexamined axilla/size ≤2 cm had higher odds of radiation when compared with size- and node-matched mastectomy patients. Multivariate logistic regression showed that NSM patients had higher odds of radiation (odds ratio 2.01, p < 0.001) than mastectomy patients. Radiation was given to 18 % of NSM patients who did not meet NCCN guidelines according to size or lymph node involvement, compared with 6 % of mastectomy patients. CONCLUSIONS: Patients who undergo therapeutic NSM are more likely to receive radiation compared with mastectomy patients. This may reflect a concern with leaving ductal tissue in the nipple-areolar complex.


Subject(s)
Breast Neoplasms/radiotherapy , Carcinoma, Ductal, Breast/radiotherapy , Mastectomy , Nipples/radiation effects , Adult , Aged , Breast Neoplasms/pathology , Breast Neoplasms/surgery , Carcinoma, Ductal, Breast/pathology , Carcinoma, Ductal, Breast/surgery , Female , Follow-Up Studies , Humans , Middle Aged , Neoplasm Staging , Nipples/pathology , Nipples/surgery , Prognosis
11.
J Med Imaging Radiat Oncol ; 58(2): 229-36, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24456128

ABSTRACT

INTRODUCTION: The nipple-areolar complex (NAC) has special histological properties with higher melanocyte concentration than breast skin. To date, there are no data describing the late effects on the NAC following breast-conserving therapy (BCT). This study evaluated colour changes in the NAC in patients treated with breast-conserving surgery and adjuvant radiotherapy after 5 years. METHODS: Digital photographs obtained at 5 years following breast irradiation from the St. George and Wollongong (SGW) trial (NCT00138814) were evaluated by five experts using an iPad® (Apple Inc., Cupertino, CA, USA) application specifically created for this study. The SGW trial randomised 688 patients with Tis-2, N0-1, M0 carcinoma to the control arm of 50 Gy in 25 fractions and boost arm of 45 Gy in 25 fractions and 16 Gy in 8 fractions electron boost. RESULTS: A total of 141/372 (38%) patients had altered NAC (86% lighter, 10% darker). Patients with Celtic skin type had increased likelihood of having an altered NAC (odds ratio (OR), 1.75 (CI 1.1-2.7, P = 0.011)). On subgroup analysis, those with Celtic skin type receiving biologically equivalent dose (BED) Gy3 ≥ 80 Gy had OR of 3.03 (95% CI 1.2-7.5, P = 0.016) for having altered colour. There was a dose response with more profound changes seen in the NAC compared with irradiated breast skin if BED Gy3 ≥ 80 Gy with OR of 2.42 (95% CI 1.1-5.6, P = 0.036). CONCLUSION: In this Caucasian BCT population, over 30% of patients developed lighter NAC and more commonly in women with Celtic skin type. The degree of this effect increased with higher radiation dose.


Subject(s)
Breast Neoplasms/epidemiology , Breast Neoplasms/radiotherapy , Nipples/radiation effects , Radiodermatitis/epidemiology , Radiotherapy, Conformal/statistics & numerical data , Skin Pigmentation/radiation effects , Causality , Comorbidity , Dose Fractionation, Radiation , Female , Humans , Middle Aged , New South Wales/epidemiology , Organ Sparing Treatments/statistics & numerical data , Organs at Risk/radiation effects , Prevalence , Risk Factors , Treatment Outcome
12.
Breast Cancer Res Treat ; 117(2): 333-8, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19152026

ABSTRACT

In order to reduce mutilation, nipple-areola complex (NAC) conservation can be proposed for the treatment of breast cancer when mastectomy is indicated. To reduce the risk of retro areolar recurrence, a novel radiosurgical treatment combining subcutaneous mastectomy with intraoperative radiotherapy (ELIOT) is proposed. One thousand and one nipple sparing mastectomies (NSM) were performed from March 2002 to November 2007 at the European institute of oncology (EIO), for invasive carcinoma in 82% of the patients and in situ carcinoma in 18%. Clinical complications, aesthetic results, oncological and psychological results were recorded. A comparison was performed between the 800 patients who received ELIOT and the 201 who underwent delayed one-shot radiotherapy on the days following the operation. The median follow up time was 20 months (range 1-69) for a follow up performed in 83% of the patients. The NAC necrosed totally in 35 cases (3.5%) and partially in 55 (5.5%) and was removed in 50 (5%). Twenty infections (2%) were observed and 43 (4.3%) prostheses removed. The median rate of the patients for global cosmetic result on a scale ranging from 0 (worst) to 10 (excellent) was 8. Evaluation by the surgeon in charge of the follow-up gave a similar result. Only 15% of the patients reported a partial sensitivity of the NAC. Of the fourteen (1.4%) local recurrences, ten occurred close to the tumour site, all far from the NAC corresponding to the field of radiation. No recurrences were observed in the NAC. In a group of patients characterized by a very close free margin under the areola, no local recurrence was observed. Overall, 36 cases of metastases and 4 deaths were observed. No significant outcome difference was observed between the 800 patients receiving intraoperative radiotherapy (ELIOT) and the 201 patients receiving delayed irradiation.


Subject(s)
Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Mastectomy, Subcutaneous/methods , Nipples/radiation effects , Nipples/surgery , Adult , Aged , Female , Humans , Intraoperative Period/methods , Italy , Mastectomy, Subcutaneous/adverse effects , Middle Aged , Neoplasm Recurrence, Local/epidemiology , Nipples/pathology , Radiotherapy, Adjuvant/adverse effects , Radiotherapy, Adjuvant/methods
13.
Int J Radiat Oncol Biol Phys ; 57(2): 345-54, 2003 Oct 01.
Article in English | MEDLINE | ID: mdl-12957244

ABSTRACT

PURPOSE: Long-term cosmesis from the patient's perspective is compared to the doctor's appraisal. Factors that determine judgment of cosmesis are analyzed. Also, a patient questionnaire was designed to screen for normal tissue reactions and is evaluated. METHODS AND PATIENTS: With structured questions, patients rated their satisfaction considering cosmesis, the difference in overall appearance, and specific changes of the breast. Two doctors rated cosmesis and radiation late effects (LENT/SOMA). Ratings were compared, and the relative impact of single items was studied. Two hundred eighty-seven patients with unilateral breast carcinoma were examined after a median follow-up of 8 years. They were treated between 1981 and 1995 with lumpectomy and radiotherapy of the breast with 1.8-2.5 Gy fractions with a median total dose of 55 Gy (range: 50-65 Gy). RESULTS: One hundred sixty-one patients rated cosmesis as satisfying, 73 patients rated it as acceptable, and 25 patients as poor. Eighty-nine patients noted severe changes of appearance. Severe firmness and extensive scars were the most frequent complaint; the most important single item for judging cosmesis as poor was highly visible scars. Generally, doctors rated cosmesis less favorably (satisfactory, 150 patients; poor, 43 patients). Severe fibrosis was more important than discoloration of the breast or scars. Correlation between patients' and doctors' rating of cosmesis was modest (Cohen's weighted kappa 0.29), whereas the doctor's rating correlated well (0.55). Specificity and sensitivity of the questionnaire item for severe fibrosis (using doctors' judgments as gold standard) was 0.8; Cohen's weighted kappa was 0.34 (95% confidence interval: 0.21-0.48). CONCLUSION: Rating of cosmesis is subjective. Patients' satisfaction with cosmesis is greater than the doctors' and is determined not only by radiation late effects, but also by factors unrelated to the appearance of the breast. Severe fibrosis may be detected by a patient questionnaire.


Subject(s)
Breast Neoplasms/radiotherapy , Breast/radiation effects , Mastectomy, Segmental/psychology , Medical Oncology , Patient Satisfaction , Radiation Injuries/psychology , Surveys and Questionnaires , Adult , Aged , Attitude of Health Personnel , Breast/pathology , Breast Neoplasms/pathology , Breast Neoplasms/psychology , Cicatrix/pathology , Cicatrix/psychology , Esthetics/psychology , Female , Follow-Up Studies , Humans , Mastectomy, Segmental/adverse effects , Middle Aged , Neoplasm Staging , Nipples/pathology , Nipples/radiation effects , Observer Variation , Radiation Injuries/pathology , Sensitivity and Specificity , Skin Pigmentation/radiation effects
14.
Dermatol Surg ; 28(1): 95-6, 2002 Jan.
Article in English | MEDLINE | ID: mdl-11991280

ABSTRACT

BACKGROUND AND OBJECTIVE: Medical tattooing of the areola is widely performed in Korea. However, cosmetic tattoos containing flesh-tone, purple-red, and yellow dyes are sometimes resistant to Q-switched laser and may even become darker. METHOD: Two Korean women in their 30s who had a mastectomy got light brown to red areolar medical tattoos but they were not satisfied with the shape and size of the tattoos. They underwent Q-switched alexandrite laser treatment with a 3 mm collimated beam at fluences of 7.5-8 J/cm2 in order to trim the irregular contour and reduce the diameter of the tattoos. RESULTS: Within 5 minutes a dark gray to black discoloration of the treated area was evident and remained dark for 6 weeks. Improvement was not noted after two further Q-switched Nd:YAG laser treatments. CONCLUSION: Medical areolar tattoos should be approached with extra caution when attempting their removal with high-energy pulsed lasers such as Q-switched alexandrite laser and a small test site should be performed prior to treatment.


Subject(s)
Lasers/adverse effects , Nipples/radiation effects , Tattooing , Adult , Breast Neoplasms/surgery , Female , Humans , Korea , Mastectomy
15.
Med Dosim ; 21(3): 127-32, 1996.
Article in English | MEDLINE | ID: mdl-8899675

ABSTRACT

Wedge filters frequently do not provide optimal distribution in the chest wall, lung, and areolar-nipple complex because they extend through the entire width of tangential radiation fields for breast cancer. In addition, medial wedge filters increase dose to the contralateral breast. In order to overcome these shortcomings, a new method of acrylic compensation was investigated. A universal acrylic breast compensator (ABC) was designed, with patient data, to extend anteriorly from the central axis. To accurately display build-up data, the ABC was entered into the treatment planning system as a wedge filter. Dose homogeneity within the compensated breast, chest wall, and lung volumes was assessed using 3-D planning and dose volume histograms. Dose to the contralateral breast was evaluated using thermoluminescent dosimetry in a polystyrene phantom. Opened, wedged, and compensated conditions were irradiated using the above described techniques. Due to lack of extension of the ABC posteriorly to the central axis (allowing lung inhomogeneity to correct for increased patient thickness), ABCs reduced the high dose regions in the chest wall and lung as compared to wedge filters. ABCs reduced hot spot in the areolar-nipple complex more efficiently as compared to wedge filters. ABCs also reduced dose to the contralateral breast by more than 20% relative to wedge filters. Wedge filters can be inefficient because of lung transmission and contour topography. Excessive dose to the chest wall, lung, and areolar-nipple complex, and contralateral breast can be alleviated with the use of a universal acrylic breast compensator. Its convenience and dosimetric advantages both in treatment planning and daily application offer a useful tool in the management of breast cancer.


Subject(s)
Acrylic Resins , Breast Neoplasms/radiotherapy , Filtration/instrumentation , Radiotherapy Dosage , Breast/radiation effects , Equipment Design , Female , Humans , Lung/radiation effects , Nipples/radiation effects , Phantoms, Imaging , Polystyrenes , Radiotherapy Planning, Computer-Assisted , Radiotherapy, High-Energy , Thermoluminescent Dosimetry , Thorax/radiation effects
17.
Akush Ginekol (Mosk) ; (2): 57-61, 1990 Feb.
Article in Russian | MEDLINE | ID: mdl-2339766

ABSTRACT

Optic characteristics of breast tissues have been examined in mothers. An internation was designed to prevent and treat nipple fissures using individualized laser therapy regimens. Individualized laser therapy of 329 mothers at risk of mastitis and 68 mothers with a normal postpartum course reduced five-fold the incidence of mastitis in the risk group (from 18.6% to 3.7%, or to values characteristic of a normal puerperium). The wave length of 0.63 micron was found to be of a higher preventive and therapeutic efficacy, compared to the wave length of 0.89 micron. Laser rays activated the immune system, as reflected by rising serum levels of immunoglobulins A, M, G and lactoferrin. It is suggested that mothers with high trophoblastic beta-glycoprotein concentrations are at high risk of puerperal septic complications.


Subject(s)
Breast Diseases/radiotherapy , Breast/radiation effects , Laser Therapy , Mastitis/prevention & control , Nipples/radiation effects , Puerperal Disorders/radiotherapy , Breast Diseases/complications , Female , Humans , Mastitis/etiology , Pregnancy , Puerperal Disorders/complications , Radiotherapy Dosage
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