Publications by authors named "Melvin J Silverstein"

Background: Extreme oncoplasty is a breast-conserving operation using oncoplastic techniques in a patient who does not meet the traditional criteria for breast conservation and in whom most physicians would suggest a mastectomy. These tumors are generally multicentric and/or multifocal, they span more than 50 mm, or they can be large recurrences in a previously irradiated breast.

Methods: A prospective single institution database was queried from 2008 through mid 2023 for patients who met the criteria for extreme oncoplasty and were treated with excision plus whole-breast radiation therapy (WBRT) or mastectomy without WBRT.

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As the leading cause of cancer morbidity and the second leading cause of cancer mortality among women, breast cancer continues to remain a major global public health problem. Consequently, significant attention has been directed toward early breast cancer detection and prevention. As a result, the number of image-detected biopsies has increased, and minimally invasive diagnostic procedures have almost replaced open surgical biopsies.

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Background: Randomized trials have shown that risk-adapted intraoperative radiation therapy (IORT) after breast-conserving surgery for low-risk breast cancer patients is a safe alternative to whole-breast radiation therapy (WBRT). The risk-adapted strategy allows additional WBRT for predefined high-risk pathologic characteristics discovered on final histopathology. The greater the percentage of patients receiving WBRT, the lower the recurrence rate.

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Introduction: Intraoperative radiotherapy (IORT) permits accurate delivery of radiation therapy directly to the tumor bed. We report local, regional, and distant recurrence data along with overall and breast cancer-specific survival for 1400 tumors treated with x-ray IORT.

Methods: A total of 1367 patients with 1400 distinct tumors were enrolled in a registry trial.

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This paper describes a series of steps taken to elevate the Hoag Breast Program to the next level. The hope is that some of our ideas will be useful to you and your breast program.

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Background: Two prospective, randomized trials, TARGIT-A and ELIOT, have shown intraoperative radiation therapy to be a safe alternative, with a low-risk of local recurrence, compared with whole breast radiation therapy, following breast-conserving surgery, for selected low-risk patients. We report the first 1000 tumors treated with this modality at our facility.

Methods: A total of 1000 distinct breast cancers in 984 patients (16 bilateral) were treated with breast conserving surgery and X-ray IORT from June 2010 to August 2017.

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Introduction: Two prospective, randomized trials, TARGIT-A and ELIOT, have shown intraoperative radiation therapy (IORT) to be a safe alternative to whole breast radiation therapy following breast-conserving surgery for selected low-risk patients. However, minimal data are available about the clinical effectiveness of this modality of treatment using the Xoft Axxent Electronic Brachytherapy (eBx) System.

Methods: A total of 201 patients with 204 early-stage breast cancers were enrolled in a prospective X-ray IORT trial from June 2010 to September 2013.

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Objective: During 2015, the media was flooded with the issue of whether ductal carcinoma in situ (DCIS) was being overtreated and whether favorable cases could be simply watched (core biopsy only followed by surveillance). To answer this question, we looked at DCIS patients treated with excision alone with margin width <1 mm as inadequate and a surrogate for no treatment (surveillance group) and margin ≥1 mm as adequate surgical excision (excision group).

Methods: A total of 720 patients with pure DCIS treated with excision alone were stratified into two groups based on margin width and further subdivided by nuclear grade.

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Intraoperative radiation therapy (IORT) delivers radiation therapy directly to the tumor bed at the time of surgery. Minimal data are available regarding IORT complications in patients diagnosed with ductal carcinoma in situ (DCIS) using the Xoft Axxent eBx System. 146 patients with pure DCIS received X-ray based IORT therapy using the Xoft Axxent eBx System at Hoag Memorial Hospital Presbyterian between June 2010 to April 2016 and were accrued to an IORT data registry study.

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Standard breast conserving techniques often fail to achieve the desired goal of tumor extirpation with adequate margins while preserving breast cosmesis. The emergence of oncoplastic breast reconstruction addresses these limitations and also allows breast conservation in women who would not have met traditional criteria. Using various volume displacing oncoplastic techniques, tumors can be successfully resected from any quadrant of the breast, while maintaining or improved breast cosmesis, diminishing post-radiation deformities, and providing breast symmetry.

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The University of Southern California/Van Nuys Prognostic Index (USC/VNPI) is an algorithm that quantifies five measurable prognostic factors known to be important in predicting local recurrence in conservatively treated patients with ductal carcinoma in situ (DCIS) (tumor size, margin width, nuclear grade, age, and comedonecrosis). With five times as many patients since originally developed, sufficient numbers now exist for analysis by individual scores rather than groups of scores. To achieve a local recurrence rate of less than 20% at 12 years, these data support excision alone for all patients scoring 4, 5, or 6 and patients who score 7 but have margin widths ≥3 mm.

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Extreme oncoplasty is a breast conserving operation, using oncoplastic techniques, in a patient who, in most physicians' opinions, requires a mastectomy. These are generally large, greater than 5 cm multifocal or multicentric tumors. Many will have positive lymph nodes.

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The authors provide a perspective on the rapidly evolving field of prognostic analyses designed to quantify the risk of local recurrence in conservatively treated ductal carcinoma in situ (DCIS). These include morphologic features variously defined, nomograms, algorithms and multi-gene expression assays-all of which have completed against the perceived conclusions of the randomized trials of irradiation and Tamoxifen for DCIS: "all subsets benefit". At present the majority of newly diagnosed DCIS can be adequately treated with surgery alone.

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Introduction: Two randomized intraoperative radiation therapy trials for early-stage breast cancer were recently published. The ELIOT Trial used electrons (IOERT), and the TARGIT-A Trial Update used 50-kV X-rays (IORT). These studies were compared for similarities and differences.

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Background: Two randomized intraoperative radiation therapy trials for early-stage breast cancer were recently published. The ELIOT Trial used electrons (IOERT), and the TARGIT-A Trial Update used 50-kV X-rays (IORT). These studies were compared for similarities and differences.

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Oncoplastic surgery combines plastic surgical techniques with sound surgical oncologic principles. The goal is to completely excise the cancer, with wide surgical margins while maintaining or improving cosmesis. For large, poorly defined, or unfavorably situated tumors, standard lumpectomies may lead to unacceptable cosmetic results in addition to close or involved resection margins.

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