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Faria S, Cury F, Duclos M, Souhami L. Radiation Therapy-Induced Castration in Men With Advanced Prostate Cancer: Results of a Prospective Phase 1 Study. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lecavalier-Barsoum M, Souhami L, Cury F, Duclos M, Faria S. Pelvic Lymph Nodes Displacement in High-Risk Prostate Cancer Patients Treated With Image-Guided IMRT With 2 Independent Target Volumes. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Coates J, Jeyaseelan K, Ybarra N, David M, Faria S, Souhami L, Cury F, Duclos M, El Naqa I. Sci-Thur AM: YIS - 02: Radiogenomic Modeling of Normal Tissue Toxicities in Prostate Cancer Patients Receiving Hypofractionated Radiotherapy. Med Phys 2014. [DOI: 10.1118/1.4894887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Lee S, Ybarra N, Jeyaseelan K, Faria S, Kopek N, El Naqa I. WE-E-BRE-05: Ensemble of Graphical Models for Predicting Radiation Pneumontis Risk. Med Phys 2014. [DOI: 10.1118/1.4889434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Coates J, Jeyaseelan K, Ybarra N, David M, Faria S, Souhami L, Cury F, Duclos M, Naqa IE. WE-D-BRE-02: BEST IN PHYSICS (THERAPY) - Radiogenomic Modeling of Normal Tissue Toxicities in Prostate Cancer Patients Receiving Hypofractionated Radiotherapy. Med Phys 2014. [DOI: 10.1118/1.4889392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Faria S, Kopek N, Hijal T, Liberman S, Charlebois P, Stein B, Meterissian S, Meguerditchian A, Fawaz Z, Artho G. Phase II trial of short-course radiotherapy followed by delayed surgery for locoregionally advanced rectal cancer. Colorectal Dis 2014; 16:O66-70. [PMID: 24148225 DOI: 10.1111/codi.12466] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 08/10/2013] [Indexed: 12/16/2022]
Abstract
AIM A prospective phase II study to investigate the feasibility and the rate of complete pathological response (ypT0) after short-course radiotherapy (SCRT) followed by surgery at 8 weeks. METHOD Operable patients with localized rectal cancer staged T3-4N0/+ or T2N+ were eligible and received 25 Gy (in one-third of patients, the gross tumor volume received a simultaneous integrated boost up to a total of 30 Gy) in five consecutive fractions to the posterior pelvis followed by surgery 8 weeks later. Pathological response and surgical toxicity were assessed in all patients. RESULTS Fifty-two patients (median age 68 years) completed the study. The median distance of the tumour from the anal verge was 6.5 cm. The median interval to surgery was 52 days. Three-quarters of patients underwent a low anterior resection. All underwent complete surgical resection and 100% had pathological negative margins. Ten per cent had stage ypT0 after radiotherapy. The median length of hospital stay was 8 days. Toxicity was comparable with the rates reported in the literature. CONCLUSION In this study, SCRT followed by delayed surgery was feasible and had acceptable toxicity. All patients underwent complete surgical resection and 100% had negative pathological margins. The rate of ypT0 was 10%.
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Lee S, Ybarra N, Jeyaseelan K, Faria S, Kopek N, Vallieres M, El Naqa I. OC-0074: Association of Computed Tomography image textures with inflammatory biomarkers in radiation-induced lung injury. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Costa-Pinto AR, Vargel I, Tuzlakoglu K, Correlo VM, Sol PC, Faria S, Piskin E, Reis RL, Neves NM. Influence of scaffold composition over in vitro osteogenic differentiation of hBMSCs and in vivo inflammatory response. J Biomater Appl 2013; 28:1430-42. [PMID: 24255003 DOI: 10.1177/0885328213512385] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
To understand the role of chitosan in chitosan-poly(butylene succinate) scaffolds (50% wt), 50%, 25%, and 0% of chitosan were used to produce different scaffolds. These scaffolds were in vitro seeded and cultured with human bone marrow stromal cells in osteogenic conditions, revealing that higher percentage of chitosan showed enhanced cell viability over time, adhesion, proliferation, and osteogenic differentiation. Scaffolds were also implanted in cranial defects and iliac submuscular region in Wistar rats, and the results evidenced that chitosan-containing scaffolds displayed mild inflammatory response and good integration with surrounding tissues, showed by connective tissue colonization and the presence of new blood vessels. Scaffolds without chitosan-evidenced necrotic tissue in scaffolds' interior, proving that chitosan exerts a positive effect over cell behavior and displays a milder host inflammatory response in vivo.
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Alves da Silva ML, Costa-Pinto AR, Martins A, Correlo VM, Sol P, Bhattacharya M, Faria S, Reis RL, Neves NM. Conditioned medium as a strategy for human stem cells chondrogenic differentiation. J Tissue Eng Regen Med 2013; 9:714-23. [PMID: 24155167 DOI: 10.1002/term.1812] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 07/24/2013] [Indexed: 02/04/2023]
Abstract
Paracrine signalling from chondrocytes has been reported to increase the synthesis and expression of cartilage extracellular matrix (ECM) by stem cells. The use of conditioned medium obtained from chondrocytes for stimulating stem cells chondrogenic differentiation may be a very interesting alternative for moving into the clinical application of these cells, as chondrocytes could be partially replaced by stem cells for this type of application. In the present study we aimed to achieve chondrogenic differentiation of two different sources of stem cells using conditioned medium, without adding growth factors. We tested both human bone marrow-derived mesenchymal stem cells (hBSMCs) and human Wharton's jelly-derived stem cells (hWJSCs). Conditioned medium obtained from a culture of human articular chondrocytes was used to feed the cells during the experiment. Cultures were performed in previously produced three-dimensional (3D) scaffolds, composed of a blend of 50:50 chitosan:poly(butylene succinate). Both types of stem cells were able to undergo chondrogenic differentiation without the addition of growth factors. Cultures using hWJSCs showed significantly higher GAGs accumulation and expression of cartilage-related genes (aggrecan, Sox9 and collagen type II) when compared to hBMSCs cultures. Conditioned medium obtained from articular chondrocytes induced the chondrogenic differentiation of MSCs and ECM formation. Obtained results showed that this new strategy is very interesting and should be further explored for clinical applications.
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Gomes P, Kaiseler M, Lopes B, Faria S, Queirós C, Coimbra M. Are standard heart rate variability measures associated with the self-perception of stress of firefighters in action? ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:2571-4. [PMID: 24110252 DOI: 10.1109/embc.2013.6610065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Stress is a major factor for the degradation of cardiac health in first responder professionals such as firefighters. Monitoring stress during real events might be the key for controlling this problem. In this paper we inspect how standard heart rate variability (HRV) measures are associated with the self-perception of stress of firefighters in action, supported by an advanced technological solution to acquire this data. Results obtained from more than 94 hours of annotated ECG recordings of firefighters in action are promising, showing positive association with various standard HRV measures. Given the richness of the gathered data, we have also measured the association of the HRV measures with the stage of a firefighting event (pre, during, post), obtaining some interesting results that hint that the psychological impact of the post-event may be one of the most concerning situations for a firefighter, motivating further studies on this in the future.
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Jeyaseelan K, Coates J, Ybarra N, David M, Faria S, Souhami L, Shenouda G, Cury F, Duclos M, ElNaqa I. Copy Number Variations as Predictors of Late Toxicities in Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Faria S, Sodano L, Gjata A, Dauri M, Sabato AF, Mertiraj O, Schinaia N. The First Point Prevalence Survey of Nosocomial Infections in Albania: Pilot Study. J Chemother 2013; 18:652-5. [PMID: 17267345 DOI: 10.1179/joc.2006.18.6.652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
In May 2003, investigators were trained and prevalence pilot study was conducted at the University Hospital of Tirana, Albania. Investigators were trained to assess the organizational problems of the first prevalence survey of nosocomial infections (NIs) in Albania. Twelve investigators were trained in 2 days. After the training, the pilot study was conducted in 3 wards. The investigators collected data using a standard form and the definitions of the Centers for Disease Control, USA. The training improved the investigators' knowledge of NI epidemiology and surveillance. The pilot study underlined the lack of information in the clinical documentation and lack of collaboration between clinicians and the laboratory: microbiological examinations were performed only in 13 (16.5%) patients and none of the 11 NIs reported was confirmed in the laboratory. This led to a review of the survey protocol, above all in order to increase the use of microbiological laboratory.
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Henriques B, Faria S, Soares D, Silva F. Hot pressing effect on the shear bond strength of dental porcelain to CoCrMoSi alloy substrates with different surface treatments. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:557-63. [DOI: 10.1016/j.msec.2012.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 09/02/2012] [Accepted: 10/02/2012] [Indexed: 10/27/2022]
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Patel N, Cury F, Souhami L, Aprikian A, Faria S, David M, Duclos M. Correlation Between PSA Bounce, Time to Nadir, and Biochemical Failure in Patients With Prostate Cancer Treated With a Combination of HDR-Brachytherapy and Hypofractionated External Beam Radiation Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lecavalier-Barsoum M, Faria S, Ruo R, Cury F, David M, Duclos M, Souhami L. Hypofractionated IMRT With Simultaneous Integrated Boost for High-risk Prostate Cancer Patients: Acute Toxicity Report. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Faria S, Kopek N, Hijal T, Liberman S, Charlebois P, Stein B, Meterissian S, Meguerditchian A, Debroux E, Tataryn D. PO-0663 DOWNSIZING AND DOWNSTAGING OF RECTAL CANCER AFTER SHORT COURSE RADIOTHERAPY FOLLOWED BY DELAYED SURGERY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70996-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Devic S, Mohammed H, Aldelaijan S, Tomic N, Seuntjens J, Deblois F, Faria S, Lehnert S. 19 FDG-BASED UPTAKE VOLUME HISTOGRAMS: AVENUE TOWARDS BIOLOGICAL TARGET VOLUMES. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70009-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Niazi T, Azoulay M, Sultanem K, Muanza T, Bahoric B, Faria S, Vuong T. What is the Actual Rate of Acute Skin Toxicity in Women Undergoing Adjuvant Radiation Therapy for Early Breast Cancer? Final Results of a Single Institution Phase II Study. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Rajakesari S, Portelance L, Kopek N, Parker W, Evans M, Comeau L, Ruo R, Faria S. A Dosimetric Comparison of Brachytherapy versus Tomotherapy versus Stereotactic Body Radiotherapy (SBRT) For The Delivery Of A Rectal Tumor Boost. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Seuntjens J, Mohammed H, Devic S, Tomic N, Aldelaijan S, Deblois F, Seuntjens J, Lehnert S, Faria S. TU-G-211-01: Uptake Volume Histograms: A Novel Avenue towards Delineation of Biological Target Volumes (BTV) in Radiotherapy. Med Phys 2011. [DOI: 10.1118/1.3613251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Faria S, Owen SP, Soulieres D, Del Vecchio P, Ofiara L, Ayoub JM, Charpentier D, Gruber J, Wan JF, Souhami L, Kopek N, Hirsh V. Can combined chemo-radiation be started after induction chemotherapy in the curative treatment of stage III non-small cell lung carcinoma (NSCLC)? A multicenter, phase II study 5-year update. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e17507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Queiros C, Faria S, Marques A. Perceptions about mental illness in a sample of portuguese polytechnic students. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73188-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
IntroductionPeople with mental illness are frequently perceived as dangerous, suffering social stigma and exclusion. Deinstitutionalization movement implies a closer contact between citizen and individuals with mental illness. However, social perceptions can be a barrier to social inclusion, provoking unfavorable attitudes. Some studies found that social rejection is different according the pathology. Vogel and Boysen (2008) found that different mental illnesses provoke different attitudes of social distance. Norman and colleagues (2008) found that social distance was associated with the diagnosis, provoking schizophrenia greater social distance than depression.AimsCompare the perceptions about mental illness (in general), depression, bipolar disorder and schizophrenia.MethodsData were collected using a translation of Mental Illness Stigma Scale (Day, 2007), fulfill on-line and in an anonym way by 315 Portuguese polytechnic students, studying in brief technological courses. The sample was composed by 69% male and 31% female; mean age 26.5 years.ResultsStudents have little contact with people with mental illness (mean = 1.5 in a Likert scale 1–5 points) but they fell comfortable when they contact a friend or a neighbor with mental illness (respectively, mean = 3.2 and mean = 2.7). They present some anxiety when they interact with people with mental illness and they avoid this contact, revealing attitudes of social exclusion. Schizophrenia and bipolar disorder was perceived more negatively than depression.ConclusionsDeinstitutionalization movement provokes more contact between citizens and individuals with mental illness, but social stigma still exist. Students can learn how to interact with those persons without anxiety and help to do better social inclusion.
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Cury FL, Duclos M, Aprikian AG, Patrocinio H, Kassouf W, Shenouda G, Faria S, David M, Souhami L. Single fraction high-dose-rate brachytherapy and hypofractionated external beam radiation therapy in the treatment of intermediate-risk prostate cancer: Long-term results. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.83] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
83 Background: We present the long-term results of a cohort of patients with intermediate-risk prostate cancer (PC) treated with single fraction high-dose-rate brachytherapy (HDRB) combined with hypofractionated external beam radiation therapy (HRT). Methods: Patients with intermediate-risk PC were treated exclusively with HDRB and HRT. HDRB delivered a dose of 10 Gy to the prostate gland and HRT consisted of 50 Gy delivered in 20 daily fractions. The planning target volume was the prostate gland with a 1 cm margin all around. The first 121 consecutive patients with a minimum of 2 years post-treatment follow-up were assessed for acute and chronic toxicity and disease control. Results: The median follow-up was 62.8 months. No acute grade III or higher toxicities were seen. Grade II late GI toxicity was seen in 9 patients (7.4%) and grade III in 2 (1.6%). Grade 3 GU toxicity was seen in 2 patients (1.6%), both with urinary obstructive symptoms requiring catheterization. A repeat biopsy was offered to the first 58 consecutively treated patients, and 44 patients agreed with the procedure. A negative biopsy was found in 40 patients (91%). The biochemical relapse-free survival rate at 5 and 8 years were 90.7% and 81.4%, with 13 patients presenting biochemical failure. Among them, nine were diagnosed with distant metastasis. Prostate cancer-specific and overall survival rates at 8 years were 100% and 95.5%, respectively. Conclusions: Our program of HDRB and HRT is well tolerated, with acceptable toxicity rates. Furthermore, results from re-biopsies revealed an elevated rate of local control. These results are encouraging and confirm that the use of conformal RT techniques, adapted to specific biological features, have the potential to improve the therapeutic ratio in intermediate risk PC patients. No significant financial relationships to disclose.
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Dal Pra A, Faria S, Cury FL, David M, Duclos M, Shenouda G, Souhami L. Treating intermediate-risk prostate cancer with hypofractionated external beam radiotherapy alone. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
93 Background: A wide range of therapeutic alternatives is available for the treatment of intermediate-risk prostate cancer (IRPC). The use of hypofractionated external beam radiotherapy (HypoRT) in this group of patients appears to be an attractive option. Non-randomized institutional results have provided similar outcomes to conventional fractionation. For health-systems such as we have in Canada, where many patients live far, it significantly shortens treatment duration and impacts favorably in health costs. We report our results using HypoRT alone in IRPC. Methods: Between October/2002 and July/2009, 82 men with IRPC (T2b-T2c, or PSA 10–20 ng/dL, or GS=7) were treated with HypoRT, without any androgen deprivation. Ultrasound image guidance was used daily to confirm setup. The dose was 66 Gy in 22 daily fractions of 3 Gy (BED=79.4Gy/44) prescribed at the isocenter. PTV was the prostate (+/− 1cm seminal vesicles) with 7-mm margin in all directions. GI and GU toxicity were prospectively assessed every 4–6 months using the CTCAE v3 scoring system. Biochemical failure was defined as nadir PSA + 2 ng/dL. Results: 60% of patients had Gleason score 7; 43% had stage T2; median initial PSA=9 ng/ml; median age 71 years. With a median follow-up of 43 months (range: 7–89), only three patients (4%) have developed biochemical failure. All three showed metastatic disease few months after biochemical failure. Actuarial biochemical recurrence free survival (bNED) is 95.4%. There was no death related to prostate cancer. Three patients died from other causes without biochemical failure. The 5-year overall survival was 93%. At the last follow up visit, grade ≥ 2 late GI and GU toxicity rates were 2% and 7%, respectively. No grade 4 or 5 has occurred. Conclusions: Men with IRPC treated with 66Gy/22 fractions and without androgen deprivation have experienced excellent 5-year biochemical control rate with acceptable late toxicity. This regimen is very convenient because the duration of the treatment is half of the time used with conventional fractionation. Whether the addition of short-term androgen deprivation would further improve outcome remains unclear. No significant financial relationships to disclose.
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