21 research outputs found

    68Ga-DOTATATE PET/CT reveals epstein-barr virus-associated nasopharyngeal carcinoma in a case of suspected sphenoid wing meningioma.

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    In this case of suspected sphenoid wing meningioma, Ga-68-DOTATATE PET/CT showed a somatostatin receptor (SSR)-expressing tumor with extension to the nasopharynx and SSR-expressing cervical lymph nodes. Subsequent biopsy from the nasopharynx revealed an Epstein-Barr virus (EBV)-associated, undifferentiated World Health Organization type 3 nasopharyngeal carcinoma (NPC), a potential clinical pitfall due to the reported high SSR expression of this tumor subtype. In consideration of the high target-to-background contrast, SSR ligands might be superior to F-18-FDG for EBV-associated NPC PET imaging, particularly at the skull base. Somatostatin receptor ligands might furthermore offer interesting theranostic possibilities for patients with advanced/extensive EBV-associated NPC

    Item banks for alcohol use from the Patient-Reported Outcomes Measurement Information System (PROMIS<sup>®</sup>): Use, consequences, and expectancies

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    Background: We report on the development and calibration of item banks for alcohol use, negative and positive consequences of alcohol use, and negative and positive expectancies regarding drinking as part of the Patient-Reported Outcomes Measurement Information System (PROMIS®). Methods: Comprehensive literature searches yielded an initial bank of more than 5000 items from over 200 instruments. After qualitative item analysis (including focus groups and cognitive interviewing), 141 items were included in field testing. Items for alcohol use and consequences were written in a first-person, past-tense format with a 30-day time frame and 5 response options reflecting frequency. Items for expectancies were written in a third-person, present-tense format with no time frame specified and 5 response options reflecting intensity. The calibration sample included 1407 respondents, 1000 from the general population (ascertained through an internet panel) and 407 from community treatment programs participating in the National Institute on Drug Abuse (NIDA) Clinical Trials Network (CTN). Results: Final banks of 37, 31, 20, 11, and 9 items (108 total items) were calibrated for alcohol use, negative consequences, positive consequences, negative expectancies, and positive expectancies, respectively, using item response theory (IRT). Seven-item static short forms were also developed from each item bank. Conclusions: Test information curves showed that the PROMIS item banks provided substantial information in a broad range of severity, making them suitable for treatment, observational, and epidemiological research. © 2012 Elsevier Ireland Ltd

    Prognostische Evaluation der HPV-Assoziation bei Patienten mit HNSCC und adjuvanter Radio(chemo)-Therapie in einer unselektierten Patientenkohorte.

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    Fragestellung:&nbsp; Ziel der Untersuchung ist es den Einfluss des HPV-Status in einer unselektionierten Kohorte auf die lokoregion&auml;re Tumorausbreitung, den Therapieerfolg und die Prognose zu evaluieren. Hierf&uuml;r wurde die H&auml;ufigkeit der HPV-Assoziation, die Verteilung auf die anatomische Lokalisation und das Lymphknotenbefallsmuster mit klinischen Endpunkten einer adjuvant behandelten HNSCC Kohorte korreliert. Methodik:&nbsp; Es wurden klinische Daten von Patienten im Zeitraum 06/2008 bis 06/2015 auf Basis einer strukturierten Langzeit-Nachsorge systematisch und streng parametrisiert in unserer Datenbank erfasst. Endpunkte sind die lokale Tumorkontrolle, lokoregion&auml;re Kontrolle und Gesamt&uuml;berleben. 214 Tumorgewebeproben wurden einer immunhistochemischen F&auml;rbung des p16 Proteins unterzogen. Zus&auml;tzlich erfolgte bei 80 Tumorproben der Nachweis von HPV-DNA mittels GP5+/6+ qPCR und anschlie&szlig;ender HPV16-spezifischer qPCR. F&uuml;r die Auswertung der HPV-Assoziation wurde pr&auml;ferentiell das Ergebnis der PCR verwendet, falls nicht vorhanden das Ergebnis der p16-IHC. Ergebnis: Bei 80 der 214 Patienten wurde der HPV-Status auch auf DNA-Ebene mittels qPCR bestimmt. Insgesamt sind 76 Tumorproben HPV-positiv (35,5%) und 138 HPV-negativ (64,5%). Bei 33 Patienten sind sowohl der in der Klinik erhobene p16-Status als auch der im Verlauf bestimmte HPV-16-DNA-Status bekannt. Es zeigt sich bei den 12 HPV-p16-negativen Patienten ein falsch negativer Befund (8,3%) und bei den 21 HPV-p16-positiven Patienten ein falsch positiver Befund (4,8%). Dabei liegt eine HPV-Assoziation vor bei 48,4 % (48,5% HPV-DNA) der Tumoren im Oropharynx, 28,3 % (20,8% HPV-DNA) in der Mundh&ouml;hle, 24 % (16,7% HPV-DNA) im Hypopharynx, 17,2 % (25% HPV-DNA) im Larynx sowie 33% bei CUP. 68 % der HPV-positiven Patienten zeigen ein nodal fortgeschrittenes Tumorstadium (N2-3), bei den HPV-negativen Patienten waren es 54%.&nbsp; Die 3-Jahres lokoregion&auml;re Kontrolle (96,1% vs 83,6%, log rank p=0.02) und das 3-Jahres Gesamt&uuml;berleben (91,6% vs 60,8%, log rank p=0.001) zeigen sich bei den HPV-positiven Patienten signifikant besser. Schlussfolgerung &amp; Ausblick:&nbsp; Die im klinischen Alltag eingesetzte HPV-Messung mittels p16-IHC zeigt eine hohe Spezifit&auml;t (95,2%) und Sensitivit&auml;t (91,7%). In unserer unselektierten Kohorte sind 35,5% der Tumoren HPV-assoziiert. Insbesondere sind 39% der HPV-assoziierten Tumoren nicht oropharyngeal gelegen, unter anderem auch im Larynx (17,2%) oder Hypopharynx (24%). In unserer Kohorte best&auml;tigt sich der Trend einer HPV-Assoziation zur vermehrten Metastasierung in die region&auml;ren Lymphknoten. In Bezug auf lokoregion&auml;re Tumorkontrolle und das Gesamt&uuml;berleben zeigt sich der HPV-Status auch in diesem Kollektiv als prognostischer Marker

    Definitive chemoradiotherapy in patients with squamous cell cancers of the head and neck-results from an unselected cohort of the clinical cooperation group "Personalized Radiotherapy in Head and Neck Cancer".

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    Background Definitive chemoradiotherapy (dCRT) is a standard treatment for patients with locally advanced head and neck cancer. There is a clinical need for a stratification of this prognostically heterogeneous group of tumors in order to optimize treatment of individual patients. We retrospectively reviewed all patients with head and neck squamous cell carcinoma (HNSCC) of the oral cavity, oropharynx, hypopharynx, or larynx, treated with dCRT from 09/2008 until 03/2016 at the Department of Radiation Oncology, LMU Munich. Here we report the clinical results of the cohort which represent the basis for biomarker discovery and molecular genetic research within the framework of a clinical cooperation group. Methods Patient data were collected and analyzed for outcome and treatment failures with regard to previously described and established risk factors. Results We identified 184 patients with a median follow-up of 65 months and a median age of 64 years. Patients received dCRT with a median dose of 70 Gy and simultaneous chemotherapy in 90.2% of cases, mostly mitomycin C / 5-FU in concordance with the ARO 95-06 trial. The actuarial 3-year overall survival (OS), local, locoregional and distant failure rates were 42.7, 29.8, 34.0 and 23.4%, respectively. Human papillomavirus-associated oropharynx cancer (HPVOPC) and smaller gross tumor volume were associated with significantly improved locoregional tumor control rate, disease-free survival (DFS) and OS in multivariate analysis. Additionally, lower hemoglobin levels were significantly associated with impaired DFS und OS in univariate analysis. The extent of lymph node involvement was associated with distant failure, DFS and OS. Moreover, 92 patients (50%) of our cohort have been treated in concordance with the ARO 95-06 study, corroborating the results of this study. Conclusion Our cohort is a large unselected monocentric cohort of HNSCC patients treated with dCRT. Tumor control rates and survival rates compare favorably with the results of previously published reports. The clinical data, together with the available tumor samples from biopsies, will allow translational research based on molecular genetic analyses
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