Publications by authors named "Robert W Clough"

Purpose/objective: While our department is heavily invested in computer-based treatment planning, we historically relied on paper-based charts for management of Radiation Oncology patients. In early 2009, we initiated the process of conversion to an electronic medical record (EMR) eliminating the need for paper charts. Key goals included the ability to readily access information wherever and whenever needed, without compromising safety, treatment quality, confidentiality, or productivity.

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Purpose: Pancreatic neuroendocrine tumors (NET) are rare and have better disease-related outcomes compared with pancreatic adenocarcinoma. Surgical resection remains the standard of care, although many patients present with locally advanced or metastatic disease. Little is known regarding the use of radiotherapy in the prevention of local recurrence after resection.

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Background And Purpose: Chest wall recurrences of breast cancer are a therapeutic challenge and durable local control is difficult to achieve. Our objective was to determine the local progression free survival (LPFS) and toxicity of thermochemoradiotherapy (ThChRT) for chest wall recurrence.

Methods: Twenty-seven patients received ThChRT for chest wall failure from 2/1995 to 6/2007 and make up this retrospective series.

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Purpose: Extrahepatic cholangiocarcinoma is an uncommon but lethal malignancy. We analyzed the role of definitive chemoradiotherapy for patients with nonmetastatic, locally advanced extrahepatic cholangiocarcinoma treated at a single institution.

Methods And Materials: This retrospective analysis included 37 patients who underwent external beam radiation therapy (EBRT) with concurrent chemotherapy and/or brachytherapy (BT) for locally advanced extrahepatic cholangiocarcinoma.

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Purpose: Intensity-modulated radiation therapy (IMRT) has the potential to reduce toxicities associated with chemoradiotherapy in the treatment of anal cancer. This study reports the results of using IMRT in the treatment of anal cancer.

Methods And Materials: Records of patients with anal malignancies treated with IMRT at Duke University were reviewed.

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Purpose: To assess the correlation of postimplant dosimetric quantifiers with biochemical control of prostate cancer after low-dose rate brachytherapy.

Methods And Materials: The biologically effective dose (BED), dose in Gray (Gy) to 90% of prostate (D(90)), and percent volume of the prostate receiving 100% of the prescription dose (V(100)) were calculated from the postimplant dose-volume histogram for 140 patients undergoing low-dose rate prostate brachytherapy from 1997 to 2003 at Durham Regional Hospital and the Durham VA Medical Center (Durham, NC).

Results: The median follow-up was 50 months.

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Purpose: To compare preoperative chemotherapy (ChT) and preoperative chemoradiotherapy (ChT-RT) in operable Stage III non-small-cell lung cancer.

Methods And Materials: This retrospective study analyzed all patients with pathologically confirmed Stage III (N2) non-small-cell lung cancer who initiated preoperative ChT or ChT-RT at Duke University between 1995 and 2006. Mediastinal pathologic complete response (pCR) rates were compared using a chi-square test.

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Purpose: Extrahepatic cholangiocarcinoma is a rare malignancy. Despite radical resection, survival remains poor, with high rates of local and distant failure. To clarify the role of radiotherapy with chemotherapy, we performed a retrospective analysis of resected patients who had undergone chemoradiotherapy.

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Purpose: To assess the correlation of postimplant dosimetric quantifiers with biochemical control of prostate cancer after low-dose-rate brachytherapy.

Materials And Methods: Generalized equivalent uniform dose (EUD), dose in Gy to 90% of the prostate gland (D(90)), and percentage of the prostate receiving 100% of the prescribed dose (V(100)) were calculated from the postimplant dose-volume histogram (DVH) for 140 patients undergoing low-dose-rate prostate brachytherapy (LDRPB) monotherapy from 1997 to 2003 at Duke University and the Durham VA Medical Center. Biochemical recurrence was defined according to the American Society for Therapeutic Radiology and Oncology consensus definition.

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Purpose: To compare a neoadjuvant regimen of cisplatin/5-fluorouracil (5-FU) and concurrent radiation therapy (RT) with paclitaxel-based regimens and RT in the management of operable esophageal (EC)/gastroesophageal junction (GEJ) cancer.

Methods And Materials: All patients receiving neoadjuvant chemotherapy (CT) and RT for EC/GEJ cancer at Duke University between January 1995 and December 2004 were included. Clinical end points were compared for patients receiving paclitaxel-based regimens (TAX) vs.

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Purpose/objectives: To identify the ways oncology nurses in one state advocate for patients, as well as the resources they use to do so.

Design: Descriptive, cross-sectional survey.

Setting: North Carolina.

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Purpose: To report patterns of disease recurrence after resection of adenocarcinoma of the duodenum and compare outcomes between patients undergoing surgery only vs. surgery with concurrent chemotherapy and radiation therapy (CT-RT).

Methods And Materials: This was a retrospective analysis of all patients undergoing potentially curative therapy for adenocarcinoma of the duodenum at Duke University Medical Center and affiliated hospitals between 1975 and 2005.

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Purpose: After surgical resection of non-small cell lung cancer, local/regional recurrence is observed in 20% to 50% of patients, often without evidence of distant metastases. This retrospective study evaluates the utility of salvage radiation therapy in this setting.

Materials And Methods: Between 1991 and 2003, 29 consecutive patients were treated with definitive radiotherapy (N=14) or chemoradiotherapy (N=15) for recurrent non-small cell lung cancer after surgical resection at Duke University Medical Center.

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Purpose: The aim of this retrospective review of patients with gynecologic malignancies treated with external beam radiotherapy (EBRT) and interstitial brachytherapy was to determine the rate of Grade > or =2 rectovaginal fistula and Grade > or =4 small bowel obstruction as defined by the National Cancer Institute Common Toxicity Criteria for Adverse Events, version 3.0.

Methods And Materials: Thirty-six patients with primary and recurrent gynecologic cancers were treated with EBRT and interstitial brachytherapy.

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Background: Although radiotherapy is an accepted component of curative treatment for Ewing sarcoma (EWS), to the authors' knowledge, there are scant data evaluating its use for palliation. The authors reviewed the Duke University Medical Center experience to evaluate treatment response and response durability.

Methods: Between 1980 and 2002, 21 patients with metastatic EWS received palliative radiotherapy.

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Purpose: Symptomatic narrowing of the tracheobronchial tree is not a common clinical problem after conventional-dose external beam radiation therapy but has been described when higher doses are utilized. This in-depth study quantifies changes in the caliber of the trachea and mainstem bronchi after high-dose external beam radiation therapy (EBRT).

Methods And Materials: As part of an IRB-approved prospective clinical trial to assess for radiation-induced lung injury, patients with thoracic malignancies had pre- and serial post-RT CT scans in the radiation oncology department.

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Purpose: The treatment of early-stage Hodgkin's disease (HD) has evolved from radiotherapy alone (RT) to combined-modality therapy (CMT) because of concerns about late adverse effects from high-dose subtotal nodal irradiation (STNI). However, there is little information regarding the long-term results of CMT programs that substantially reduce the dose and extent of radiation. In addition, lowering the total radiation dose may reduce the complication rate without compromising cure.

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Purpose: Primary adenocarcinoma of the gallbladder is a rare malignancy. To better define the role of adjuvant radiation therapy and chemotherapy, a retrospective analysis of the outcome of patients undergoing surgery and adjuvant therapy was undertaken.

Methods And Materials: Twenty-two patients with primary and nonmetastatic gallbladder cancer were treated with radiation therapy after surgical resection.

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Purpose: To assess the incidence of clinically significant bronchial stenosis in patients treated with high doses (i.e., >70 Gy) of twice-daily external beam radiation therapy (RT).

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To assess if there has been increased sectioning of pathologic specimens with ductal carcinoma in situ (DCIS), identify sources of this change, and consider the clinical consequences, pathologic data from patients who underwent initial excisional biopsies at our institution and were referred to the radiation oncology department with DCIS from 1992-2002 were retrospectively reviewed. One hundred forty-four of 480 patients with DCIS were eligible for review. Specimen size was recorded as length, to the nearest 0.

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The purpose of this study was to determine prognostic factors for patients with melanoma brain metastases that can be recommended for patient selection for clinical trials. A retrospective review was conducted of 65 patients irradiated for brain metastases from 1990 to 1997. Pretreatment factors analyzed for influence on survival included age, stage, Karnofsky Performance Status (KPS), extracranial metastases, the number and location of brain lesions, disease-free interval from initial diagnosis, total dose of radiation, and number of fractions administered.

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Purpose: To evaluate the long-term changes in pulmonary function tests (PFTs) in patients surviving at least 2 years after definitive radiotherapy (RT) for unresectable lung cancer.

Methods And Materials: Between 1992 and 2000, 277 patients were enrolled in a prospective clinical study to relate RT-induced changes in lung function with dosimetric and functional metrics. Of these, 128 received definitive RT for lung cancer, and 13 of these had follow-up PFTs for approximately >/=2 years without evidence of recurrent or progressive cancer.

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Purpose: To review the outcome of patients with limited-stage small-cell lung cancer receiving daily thoracic irradiation (RT) to approximately 60 Gy.

Methods And Materials: The records of patients treated with RT for limited-stage small-cell lung cancer between 1991 and 1999 at Duke University were retrospectively reviewed. Sixty-five patients were identified who had received continuous course once-daily 1.

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Background: The mannose 6-phosphate/insulin-like growth factor 2 receptor (M6P/IGF2R) encodes for a multifunctional receptor involved in lysosomal enzyme trafficking, fetal organogenesis, cytotoxic T cell-induced apoptosis and tumor suppression. The purpose of this investigation was to determine if the M6P/IGF2R tumor suppressor gene is mutated in human head and neck cancer, and if allelic loss is associated with poor patient prognosis.

Methods: M6P/IGF2R loss of heterozygosity in locally advanced squamous cell carcinoma of the head and neck was assessed with six different gene-specific nucleotide polymorphisms.

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Article Synopsis
  • The study aimed to assess the severity and progression of rectal toxicity in 134 prostate cancer patients who underwent transperineal brachytherapy and to identify contributing factors.
  • Findings revealed that 39% of patients experienced gastrointestinal toxicity, primarily Grade 1, with a median symptom duration of 6 months; only 2 patients showed severe Grade 3 toxicity.
  • Key factors linked to increased toxicity included the addition of external beam radiation, higher cancer stage, and Caucasian race, but most patients experienced mild symptoms overall.
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