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ORBi Open Repository and Bibliography (256,541 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Human health sciences => Hematology

Mostrando recursos 601 - 620 de 995

  1. Hyperfractionated accelerated radiotherapy (HART) for inoperable, non metastatic non-small-cell lung carcinoma of the lung (NSCLC): result of a phase II study for patients ineligible for combination radio-chemotherapy.

    Koutaissoff, S [author]; Wellmann, D [author]; COUCKE, Philippe [author]; Ozsahin, M [author]; Pampallona, S [author]; Mirimanoff, R-O [author]
    Purpose: To evaluate a hyperfractionated and accelerated radiotherapy (HART) protocol in patients with inoperable non-small cell lung carcinoma (NSCLC) who were ineligible for combination radiochemotherapy studies. Methods and Materials: From February 1989 through August 1994, 23 patients ineligible for available combined modality protocols in our institution were enrolled and treated with HART, consisting of 63 Gy given in 42 fractions of 1.5 Gy each, twice daily, with a minimum time interval of 6 h between fractions, 5 days a week, over an elapsed time of 4.2 weeks, or 29 days. There was no planned interruption. Results: The 1-, 2-, and 3-year survival rates were...

  2. Altered apoptotic profiles in irradiated patients with increased toxicity.

    Crompton, Nigel; Miralbell, Raymond; Rutz, Hans-Peter; Ersoy, Fügen; Sanal, Özden; Wellmann, Danielle; Bieri, Sabine; Emery, Gillian; Shi, Yu-Quan; COUCKE, Philippe; OzsahinBlattmann; Ozsahin
    Peer reviewed

  3. The ribonucleoside diphosphate reductase inhibitor (E)-2'-Deoxy-(fluoromethylene) cytidine, acts as a cytotoxic radiosensitizer on human cancer cell lines in vitro.

    Coucke, Philippe [author]; Decosterd, L-A [author]; Li, Y-X [author]; Cottin, E [author]; Chen, X [author]; Sun, L-Q [author]; Stern, S [author]; Paschoud, N [author]; Denekamp, J [author]
    ABSTRACT (E)-2*-Deoxy-(fluoromethylene)cytidine (FMdC) is known as an inhibitor of ribonucleoside diphosphate reductase, a key enzyme in the de novo pathway of DNA synthesis. FMdC was tested as a modifier of radiation response in vitro on a human colon carcinoma cell line (WiDr), and the observed radiosensitization was confirmed on two human cervix cancer cell lines (C33-A and SiHa). Using the clonogenic assay, the effect ratio (ER) at a clinically relevant dose level of 2 Gy was 2.10 (50 nM FMdC), 1.70 (30 nM FMdC), and 1.71 (40 nM FMdC) for the three cell lines WiDr, C33-A, and SiHa, respectively. A more detailed analysis of the importance of timing and concentration...

  4. A treatment planning intercomparison of proton and intensity modulated photon radiotherapy.

    Lomax, T [author]; Goitein, G [author]; Debus, J [author]; Dykstra, C [author]; Tercier, P-A [author]; COUCKE, Philippe [author]; Mirimanoff, R-O [author]
    Abstract Purpose: A comparative treatment planning study has been undertaken between standard photon delivery techniques,b intensity modulated photon methods and spot scanned protons in order to investigate the merits and limitations of each of these treatment approaches. Methods: Plans for each modality were performed using CT scans and planning information for nine patients with varying indications and lesion sites and the results have been analysed using a variety of dose and volume based parameters. Results: Over all cases, it is predicted that the use of protons could lead to a reduction of the total integral dose by a factor three compared to standard...

  5. A survey on staging and treatment in uterine cervical carcinoma in the Radiotherapy Cooperative Group of the European Organization for Research and Treatment of Cancer

    Coucke, Philippe [author]; Maingon, P [author]; Ciernik, I [author]; Do, H-P [author]
    Abstract Background: The treatment outcome of advanced stage uterine cervical carcinoma remains unsatisfactory. In order to elaborate a novel trial within The Radiotherapy Cooperative Group (RCG) of the European Organization for Research and Treatment of Cancer (EORTC), we conducted a survey in 1997±1998 to determine the variability of pre-treatment assessment and treatment options. The variability of choosing surgery, de®ned radiation therapy techniques and chemotherapy are investigated, as well as the center's choices of future treatment strategies. Methods: Fifty two of 81 RCG centers from the RCG have participated in the survey. As one would expect, there is a large variation in the techniques used for pretreatment...

  6. Effect of grade on disease-free survival and overall survival in FIGO Stage I adenocarcinoma of the endometrium.

    Delaloye, J-F [author]; Pampallona, S [author]; COUCKE, Philippe [author]; Megalo, A [author]; Dr Grandi, P [author]
    Abstract Objective : To analyse the effect of differentiation on disease-free survival (DFS) and overall survival (OS) in patients with stage I adenocarcinoma of the endometrium. Patients and methods : From 1979 to 1995, 350 patients with FIGO stage IA–IC with well (G1), moderately (G2) or poorly (G3) differentiated tumors were treated with surgery and high dose-rate brachytherapy with or without external radiation. Median age was 65 years (39–86 years). Results : The 5-year DFS was 8863% for the G1 tumors, 7764% for the G2 tumors, and 6767% for the G3 tumors (P50.0049). With regard to the events contributing to DFS, the...

  7. Basic rules of dosimetry in endovascular brachytherapy.

    Coucke, Philippe; PHUOC DO, Hu; Pica, Alessia; Urban, Filip; Pache, Gilbert
    Endovascular brachytherapy after percutaneous coronary intervention (PCI), is becoming a standard approach for the treatment and prevention of restenosis. A variety of technical approaches are currently available to deliver ionizing irradiation to the vascular target. Basically two kinds of radioactive isotopes are available that emit gamma radiation (photons) or beta radiation (electrons). The pitfalls and solutions for the optimization of dosimetry are discussed. As might be expected, the inhomogeneous dose distribution across the target volume results in recurrence by underdosage or in complications because of overdosage. Moreover, uniformization of the target definition and reporting of the dose distribution in endovascular brachytherapy...

  8. Young Investigators Workshop participants (P.A Coucke) and N. Coleman : Radiation Research program, Radiation Oncology Sciences Program, National Cancer Institue, Nih, August 1-2, 2000

    INTRODUCTION The one-and-a-half day Young Investigators Workshop was held in the Holiday Inn, Bethesda, August 1–2, 2000. Using the SCAROP mailing list and recommendations from department chiefs, approximately 55 “early-career” physicianscientists were invited to attend the workshop. Table 1 includes the participants. The goals of the meeting were: c To bring together radiation oncology physician-scientists who were in the early part of their career to discuss research ideas and opportunities as well as potential barriers to progress for the field and for young-investigator careers. c To help develop camaraderie among and a critical-mass of a new generation of physician-scientists with interests ranging from technology development, to basic and translational research, to outcomes research and analysis. c To...

  9. Radiation therapy alone or combined surgery and radiation therapy in squamous-cell carcinoma of the penis?

    Zouhair, A [author]; COUCKE, Philippe [author]; Jeanneret, W [author]; Douglas, P [author]; Do, H-P [author]; Jichlinski, P [author]; Mirimanoff, R-O [author]; Ozsahin, M [author]
    Abstract To assess the prognostic factors and the outcome in patients with squamous-cell carcinoma of the penis, a retrospective review of 41 consecutive patients with non-metastatic invasive carcinoma of the penis, treated between 1962 and 1994, was performed. The median age was 59 years (range: 35±76 years). According to the International Union Against Cancer (UICC) 1997 classi®cation, there were 12 (29%) T1, 24 (59%) T2, 4 (10%) T3 and 1 TX (2%) tumours. The N-classi®cation was distributed as follows: 29 (71%) patients with N0, 8 (20%) with N1, 3 (7%) with N2 and 1 (2%) with N3. Forty-four per cent (n=18) of the patients underwent surgery:...

  10. Quantitative short-term study of Anal sphincter function after chemoradiation for rectal cancer

    Gervaz, Pascal [author]; Rotholtz, Nicolas [author]; Pisano, Michele [author]; Kaplan, Edward [author]; Secic, Michele [author]; COUCKE, Philippe [author]; Pikarsky, Alon [author]; Efron, Jonathan [author]; Wexner, Steven [author]
    Hypothesis: Pelvic irradiation adversely affects anal sphincter function after proctectomy with coloanal anastomosis for low rectal and middle rectal (,10 cm from the anal verge) tumors. Design: Case-control study. Setting: Private, tertiary care referral center. Patients: Patients treated for low rectal adenocarcinoma between January 1, 1994, and October 31, 1999. Interventions: Anal manometric data were prospectively collected at the time of initial diagnosis and before ileostomy closure. Main Outcome Measures: Mean and maximum resting pressures (RPs) and squeeze pressures, threshold volume for sensation, and maximal tolerable volume. Results: Twenty-three patients in the surgery group and 19 in the chemoradiotherapy group were considered for

  11. Irradiation du petit bassin et fonction ano-rectale.

    Gervaz, P [author]; COUCKE, Philippe [author]; Gillet, M [author]
    Le traitement adjuvant des cancers du rectum a pour buts de stériliser la maladie résiduelle infra-clinique et d’améliorer le contrôle local. Depuis plus de 20 ans, des milliers de malades ont été inclus dans des études randomisées, visant d’abord à mettre en évidence un gain de survie et une réduction des récidives loco-régionales, en relation avec la radiothérapie pré- ou postopératoire, combinée ou non à la chimiothérapie. Les conséquences en termes de qualité de vie de ces traitements ont pourtant été peu étudiées, et la tolérance fonctionnelle du néo-rectum et de l’appareil sphinctérien à la radiothérapie restent mal connues [1]. Les difficultés liées à l’étude des effets de l’irradiation sur les...

  12. Repeated intracoronary beta radiation for recurrent in-stent restenosis.

    De Benedetti, E [author]; Latchem, D [author]; Roguelov, C [author]; COUCKE, Philippe [author]; Seydoux, C [author]; Goy, J-J [author]; Urban, P [author]; Eeckhout, E [author]
    More than 70% of percutaneous coronary interventions are followed by a stent implantation. In-stent restenosis still occurs in 20-30% of patients and remains a therapeutic challenge. At present only vascular brachytherapy has been shown to be an effective treatment option. We report here one case of recurrent in-stent restenosis after vascular brachytherapy that was successfully treated by a second beta radiation treatment. Cathet Cardiovasc Intervent 2002;55:233–236. © 2002 Wiley-Liss, Inc.

  13. Radiation-associated synovial-sarcoma: clinicopathological and molecular analysis of two cases.

    Egger, J-F [author]; Coindre, J-M [author]; Benhattar, J [author]; COUCKE, Philippe [author]; Guillou, L [author]
    Development of a soft-tissue sarcoma is an infrequent but well-known long-term complication of radiotherapy. Malignant fibrous histiocytomas, extraskeletal osteosarcomas, fibrosarcomas, malignant peripheral nerve sheath tumors, and angiosarcomas are most frequently encountered. Radiationassociated synovial sarcomas are exceptional. We report the clinicopathologic, immunohistochemical, and molecular features of two radiationassociated synovial sarcomas. One tumor developed in a 42-year-old female 17 years after external irradiation was given for breast carcinoma; the other occurred in a 34-year-old female who was irradiated at the age of 7 years for a nonneoplastic condition of the left hand. Both lesions showed morphologic features of monophasic spindle cell synovial sarcoma, were immunoreactive for cytokeratins, epithelial membrane antigen, CD99, CD117 (c-kit), and bcl-2 and bore the t(X;18) (SYT-SSX1)...

  14. Importance of Tumor Regression Assessment in Predicting the Outcome in Patients with Locally Advanced Rectal Carcinoma Who Are Treated with Preoperative Radiotherapy

    Bouzourene, Hanifa; Bosman, Fred; Seelentag, Walter; Matter, Maurice; COUCKE, Philippe
    BACKGROUND: Locally advanced rectal carcinoma has a poor prognosis. However,
    since the introduction of preoperative radiotherapy, the outcome of patients with
    rectal carcinoma has been reported to have improved. Nevertheless, to the authors’
    knowledge few data are available regarding the histopathologic response to
    radiotherapy as assessed on surgical specimens as a potential predictive factor for
    METHODS: To estimate the effect of radiotherapy on rectal carcinoma, the authors
    retrospectively reviewed the surgical specimens of 102 patients with T3-4, N0 or
    N1 rectal carcinoma and 1 patient with T2 but N1 rectal carcinoma. All patients
    were treated preoperatively with a...

  15. Role of methalothionein in irradiated human rectal carcinoma.

    Bouzourene, H [author]; Chabert, P [author]; Gebhardt, S [author]; Bosman, F-T [author]; COUCKE, Philippe [author]
    BACKGROUND. Metallothioneins (MT) are low-molecular weight, metal-binding proteins that play a role in cellular proliferation and differentiation, as well as in cellular defense mechanisms. They act as scavengers of free radicals produced by irradiation. A number of in vitro and in vivo studies have linked overexpression of cellular MT with tumor cell resistance to radiation. This is the first study that investigates whether MT expression is involved in the radioresistance of rectal carcinoma. METHODS. Using a mouse monoclonal antibody, MT expression was analyzed by immunohistochemistry on surgical samples (n 85) from 85 patients with locally advanced rectal carcinoma who were treated preoperatively with a hyperfractionated and accelerated radiotherapy schedule and...

  16. Shortened irradiation scheme, continuous infusion of 5-fluorouracil and fractionation of mitomycin C in locally advanced anal carcinomas. Results of a phase II study of the European Organization for Research and Treatment of Cancer. Radiotherapy and Gastrointestinal Cooperative Groups

    Bosset, J. F.; Roelofsen, F.; Morgan, D.A. L.; Budach, V.; Jager, J. J.; Van der Steen-Banasik, E.; Trivière, N.; Stüben, G.; Puyraveau, M.; COUCKE, Philippe; Mercier, M
    Abstract The European Organization for Research and Treatment of Cancer (EORTC) 22861 randomised trial established that combined radiochemotherapy is the standard treatment for locally advanced anal cancer. This EORTC phase II study (#22953) tests the feasibility of reducing the gap between sequences to 2 weeks, to deliver Mitomycin C (MMC) in each radiotherapy sequence and 5-FU continuously during the treatment. The first sequence consisted of 36 Gy over 4 weeks. 5-FU 200 mg/m2/days 1–26, MMC 10 mg/m2/day 1 gap 16 days. Then a second sequence of 23.4 Gy over 17 days, 5-FU 200 mg/m2/days 1–17 and, MMC 10 mg/m2/day 1 was given. 43 patients with a...

  17. Radiothérapie externe accélérée postopératoire des carcinomes épidermoïdes localement évolués de la sphère ORL : étude prospective de phase II

    Zouhair, A [author]; COUCKE, Philippe [author]; Azria, D. [author]; Pache, P. [author]; Stupp, R. [author]; Moeckli, R. [author]; Mirimanoff, R. O. [author]; Ozsahin, M. [author]
    Abstract Purpose. – To assess the feasibility and efficacy of accelerated postoperative radiation therapy (RT) in patients with squamous-cell carcinoma of the head and neck (SCCHN). Patients and methods. – Between December 1997 and July 2001, 68 patients (male to female ratio: 52/16; median age: 60-years (range: 43–81) with pT1-pT4 and/or pN0-pN3 SCCHN (24 oropharynx, 19 oral cavity, 13 hypopharynx, 5 larynx, 3 unknown primary, 2 maxillary sinus, and 2 salivary gland) were included in this prospective study. Postoperative RT was indicated because extracapsular infiltration (ECI) * Auteur correspondant. Adresse e-mail : (A. Zouhair). Cancer/Radiothérapie 7 (2003) 231–236 © 2003 Éditions scientifiques et médicales Elsevier SAS. Tous droits...

  18. Predictive factors in locally advanced rectal cancer treated with preoperative hyperfractionated and accelerated radiotherapy.

    Bouzourene, H [author]; Bosman, F [author]; Matter, M [author]; Coucke, Philippe [author]
    This study examines the prognostic significance of pathologic factors in patients with primary locally advanced rectal cancer treated prospectively with preoperative radiotherapy. From 1992 to 1998, 104 patients with rectal cancer of grades T3 or T4 and any N underwent preoperative radiotherapy followed by surgical resection. Survival curves were estimated according to the Kaplan-Meier method. Correlation of outcome with clinicopathologic variables (pathologic tumor and lymph node staging, histology, radial resection margin [RRM], clearance, vessel involvement, and tumor regression grade [TRG], quantitated in 5 grades) was evaluated using the Cox proportional hazards model. None of the patients achieved a histologically confirmed complete pathologic response, but 79% of the patients showed partial tumor regression...

  19. Preoperative hyperfractionated acclerated radiotherapy (HART) and concomittant CPT-11 in advanced rectal carcinoma. A phase I study.

    Voelter, V [author]; Stupp, R [author]; Matter, M [author]; Gillet, M [author]; Bouzourene, H [author]; Leyvraz, S [author]; COUCKE, Philippe [author]
    Purpose: Patients with locally advanced rectal carcinoma are at risk for both local recurrence and distant metastases. We demonstrated the efficacy of preoperative hyperfractionated accelerated radiotherapy (HART). In this Phase I trial, we aimed at introducing chemotherapy early in the treatment course with both intrinsic antitumor activity and a radiosensitizer effect. Methods and Materials: Twenty-eight patients (19 males; median age 63, range 28–75) with advanced rectal carcinoma (cT3: 24; cT4: 4; cN : 12; M1: 5) were enrolled, including 8 patients treated at the maximally tolerated dose. Escalating doses of CPT-11 (30–105 mg/m2/week) were given on Days 1, 8, and 15, and...

  20. RENO, a European Postmarket Surveillance Registry, confirms effectiveness of coronary brachytheraypy in routine clinical practice.

    Coen, V [author]; Serruys, P [author]; Sauerwein, W [author]; Orecchia, R [author]; Von Rottkay, P [author]; COUCKE, Philippe [author]; Ehnert, M [author]; Urban, P [author]; Bonan, R [author]; Levendag, P [author]
    Purpose: To assess, by a European registry trial, the clinical event rate in patients with discrete stenotic lesions of coronary arteries (de novo or restenotic) in single or multiple vessels (native or bypass grafts) treated with -radiation. Methods and Materials: Between April 1999 and September 2000, 1098 consecutive patients treated in 46 centers in Europe and the Middle East with the Novoste Beta-Cath System were included in Registry Novoste (RENO). Results: Six-month follow-up data were obtained for 1085 patients. Of 1174 target lesions, 94.1% were located in native vessels and 5.9% in a bypass graft; 17.7% were de novo lesions, 4.1% were...

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