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  1. Artikel ; Online: Stereotactic body radiation therapy for reirradiation of localized adenocarcinoma of the pancreas

    Lominska Chris E / Unger Keith / Nasr Nadim M / Haddad Nadim / Gagnon Greg

    Radiation Oncology, Vol 7, Iss 1, p

    2012  Band 74

    Abstract: Abstract Background Local control rates are poor in the treatment of pancreatic cancer. We investigated the role of hypofractionated stereotactic body radiation therapy (SBRT) for salvage or boost treatment after conventional doses of external beam ... ...

    Abstract Abstract Background Local control rates are poor in the treatment of pancreatic cancer. We investigated the role of hypofractionated stereotactic body radiation therapy (SBRT) for salvage or boost treatment after conventional doses of external beam radiation therapy. Methods All patients treated with SBRT for pancreatic adenocarcinoma at Georgetown University from June 2002 through July 2007 were examined. Eligible patients had prior external beam radiation therapy to the pancreas. Treatment parameters and clinical and radiographic follow-up were evaluated. Results Twenty-eight patients were identified who received SBRT after a median prior external beam radiotherapy dose of 50.4 Gy. The median patient age was 63 years old and the median follow-up was 5.9 months. Twelve of fourteen (85.7%) evaluable patients were free from local progression, with three partial responses and nine patients with stable disease. Toxicity consisted of one case of acute Grade II nausea/vomiting, and two cases of Grade III late GI toxicity. The median overall survival was 5.9 months, with 18% survival and 70% freedom from local progression at one year. Conclusions Hypofractionated SBRT reirradiation of localized pancreatic cancer is a well-tolerated treatment. Most patients are free from local progression, albeit with limited follow-up, but overall survival remains poor.
    Schlagwörter SBRT ; Reirradiation ; Radiotherapy ; Pancreatic cancer ; Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282
    Thema/Rubrik (Code) 610 ; 616
    Sprache Englisch
    Erscheinungsdatum 2012-05-01T00:00:00Z
    Verlag BMC
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel: Quantitative clinical outcomes of therapy for head and neck lymphedema.

    Doke, Kaleigh N / Bowman, Laine / Shnayder, Yelizaveta / Shen, Xinglei / TenNapel, Mindi / Thomas, Sufi Mary / Neupane, Prakash / Yeh, Hung-Wen / Lominska, Chris E

    Advances in radiation oncology

    2018  Band 3, Heft 3, Seite(n) 366–371

    Abstract: Purpose: Head and neck surgery and radiation cause tissue fibrosis that leads to functional limitations and lymphedema. The objective of this study was to determine whether lymphedema therapy after surgery and radiation for head and neck cancer ... ...

    Abstract Purpose: Head and neck surgery and radiation cause tissue fibrosis that leads to functional limitations and lymphedema. The objective of this study was to determine whether lymphedema therapy after surgery and radiation for head and neck cancer decreases neck circumference, increases cervical range of motion, and improves pain scores.
    Methods and materials: A retrospective review of all patients with squamous cell carcinoma of the oral cavity, oropharynx, or larynx who were treated with high-dose radiation therapy at a single center between 2011 and 2012 was performed. Patients received definitive or postoperative radiation for squamous cell carcinoma of the oral cavity, oropharynx, or larynx. Patients were referred to a single, certified, lymphedema therapist with specialty training in head and neck cancer after completion of radiation treatment and healing of acute toxicity (typically 1-3 months). Patients underwent at least 3 months of manual lymphatic decongestion and skilled fibrotic techniques. Circumferential neck measurements and cervical range of motion were measured clinically at 1, 3, 6, 9, and 12 months after completion of radiation therapy. Pain scores were also recorded.
    Results: Thirty-four consecutive patients were eligible and underwent a median of 6 months of lymphedema therapy (Range, 3-12 months). Clinically measured total neck circumference decreased in all patients with 1 month of treatment. Cervical rotation increased by 30.2% on the left and 27.9% on the right at 1 month and continued to improve up to 44.6% and 55.3%, respectively, at 12 months. Patients undergoing therapy had improved pain scores from 4.3 at baseline to 2.0 after 1 month.
    Conclusions: Lymphedema therapy is associated with objective improvements in range of motion, neck circumference, and pain scores in the majority of patients.
    Sprache Englisch
    Erscheinungsdatum 2018-04-27
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 2452-1094
    ISSN 2452-1094
    DOI 10.1016/j.adro.2018.04.007
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Stereotactic body radiation therapy for reirradiation of localized adenocarcinoma of the pancreas.

    Lominska, Chris E / Unger, Keith / Nasr, Nadim M / Haddad, Nadim / Gagnon, Greg

    Radiation oncology (London, England)

    2012  Band 7, Seite(n) 74

    Abstract: Background: Local control rates are poor in the treatment of pancreatic cancer. We investigated the role of hypofractionated stereotactic body radiation therapy (SBRT) for salvage or boost treatment after conventional doses of external beam radiation ... ...

    Abstract Background: Local control rates are poor in the treatment of pancreatic cancer. We investigated the role of hypofractionated stereotactic body radiation therapy (SBRT) for salvage or boost treatment after conventional doses of external beam radiation therapy.
    Methods: All patients treated with SBRT for pancreatic adenocarcinoma at Georgetown University from June 2002 through July 2007 were examined. Eligible patients had prior external beam radiation therapy to the pancreas. Treatment parameters and clinical and radiographic follow-up were evaluated.
    Results: Twenty-eight patients were identified who received SBRT after a median prior external beam radiotherapy dose of 50.4 Gy. The median patient age was 63 years old and the median follow-up was 5.9 months. Twelve of fourteen (85.7%) evaluable patients were free from local progression, with three partial responses and nine patients with stable disease. Toxicity consisted of one case of acute Grade II nausea/vomiting, and two cases of Grade III late GI toxicity. The median overall survival was 5.9 months, with 18% survival and 70% freedom from local progression at one year.
    Conclusions: Hypofractionated SBRT reirradiation of localized pancreatic cancer is a well-tolerated treatment. Most patients are free from local progression, albeit with limited follow-up, but overall survival remains poor.
    Mesh-Begriff(e) Adenocarcinoma/mortality ; Adenocarcinoma/radiotherapy ; Adenocarcinoma/surgery ; Adult ; Aged ; Aged, 80 and over ; Dose Fractionation, Radiation ; Female ; Humans ; Male ; Middle Aged ; Pancreatic Neoplasms/mortality ; Pancreatic Neoplasms/radiotherapy ; Pancreatic Neoplasms/surgery ; Radiation Dosage ; Radiosurgery/methods ; Radiotherapy, Adjuvant ; Retrospective Studies ; Survival Analysis
    Sprache Englisch
    Erscheinungsdatum 2012-05-18
    Erscheinungsland England
    Dokumenttyp Evaluation Study ; Journal Article
    ZDB-ID 2224965-5
    ISSN 1748-717X ; 1748-717X
    ISSN (online) 1748-717X
    ISSN 1748-717X
    DOI 10.1186/1748-717X-7-74
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  4. Artikel: 17Alpha-estradiol and 17beta-estradiol treatments are effective in lowering cerebral amyloid-beta levels in AbetaPPSWE transgenic mice.

    Levin-Allerhand, Justine A / Lominska, Chris E / Wang, Jennifer / Smith, Jonathan D

    Journal of Alzheimer's disease : JAD

    2003  Band 4, Heft 6, Seite(n) 449–457

    Abstract: Post-menopausal estrogen therapy is associated with a decreased incidence of Alzheimer disease and in vitro models have shown that 17beta-estradiol is effective in lowering amyloidogenic processing. To examine the effects of estrogen withdrawal and ... ...

    Abstract Post-menopausal estrogen therapy is associated with a decreased incidence of Alzheimer disease and in vitro models have shown that 17beta-estradiol is effective in lowering amyloidogenic processing. To examine the effects of estrogen withdrawal and replacement on amyloid beta (Abeta) levels and amyloid beta-protein precursor (AbetaPP) processing in vivo, Swedish mutant AbetaPP transgenic mice were ovariectomized or sham ovariectomized at four weeks of age and treated with placebo or 17beta- or 17alpha-estradiol pellets, the latter being a weak estrogen receptor agonist. Compared to sham ovariectomized mice, ovariectomy with placebo did not alter Abeta levels; however, the levels of Abeta were decreased by 27% and 38% in mice treated with 17beta- and 17alpha- estradiol, respectively, with no change in AbetaPP holoprotein. Endogenous and exogenous estrogen both significantly increased the levels of sAbetaPPalpha, the secreted form of AbetaPP. The ratio of Abeta/sAbetaPPalpha, a measure of amyloidogenic processing, was reduced in all estrogen-containing groups. The Abeta lowering effect of 17beta- and 17alpha-estradiol was replicated when estrogens were administered at a more physiological dose in the drinking water, or when mice were ovariectomized at three months of age. The increased efficacy of 17alpha-estradiol versus 17beta-estradiol may help to develop safe and effective therapeutics.
    Mesh-Begriff(e) Alzheimer Disease/pathology ; Amyloid beta-Peptides/analysis ; Amyloid beta-Protein Precursor/analysis ; Amyloid beta-Protein Precursor/genetics ; Amyloidosis/pathology ; Animals ; Brain/drug effects ; Brain/pathology ; Estradiol/pharmacology ; Estrogen Replacement Therapy ; Female ; Mice ; Mice, Inbred C57BL ; Mice, Neurologic Mutants ; Mice, Transgenic ; Models, Genetic ; Ovariectomy ; Stereoisomerism
    Chemische Substanzen Amyloid beta-Peptides ; Amyloid beta-Protein Precursor ; Estradiol (4TI98Z838E)
    Sprache Englisch
    Erscheinungsdatum 2003-01-06
    Erscheinungsland Netherlands
    Dokumenttyp Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1440127-7
    ISSN 1875-8908 ; 1387-2877
    ISSN (online) 1875-8908
    ISSN 1387-2877
    DOI 10.3233/jad-2002-4601
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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