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1.
Strahlenther Onkol ; 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39259348

RESUMEN

OBJECTIVE: To understand whether art and technology (mainly conversational agents) may help oncology patients to experience a more humanized journey. METHODS: This narrative review encompasses a comprehensive examination of the existing literature in this field by a multicenter, multidisciplinary, and multiprofessional team aiming to analyze the current developments and potential future directions of using art and technology for patient engagement. RESULTS: We identified three major themes of patient engagement with art and three major themes of patient engagement with technologies. Two real-case scenarios are reported from our experience to practically envision how findings from the literature can be implemented in different contexts. CONCLUSION: Art therapy and technologies can be ancillary supports for healthcare professionals but are not substitutive of their expertise and responsibilities. Such tools may help to convey a more empathetic and uplifting patient journey if properly integrated within clinical practice, whereby the humanistic touch of medicine remains pivotal.

2.
In Vivo ; 38(3): 1306-1315, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38688632

RESUMEN

BACKGROUND/AIM: The current standard for anal cancer treatment is essentially a 'one size fits all' approach where the dose of radiotherapy is similar whether the tumor is very small or very large. Trials are ongoing to evaluate dose de-escalation or escalation in localized disease depending on tumor size. The aim of the study was to assess results of a personalized approach involving dose stratification by stage and boost dose adjusted according to tumor early response. PATIENTS AND METHODS: We retrospectively reviewed squamous cell anal cancer (SCAC) patients treated between 2011 and 2021 by long-course intensity-modulated radiotherapy (IMRT) and concomitant chemotherapy (CT); a sequential boost could be administered by IMRT or interventional radiotherapy (IRT) to obtain a total equivalent dose in 2 Gy (EQD2) of 54-60 Gy. RESULTS: We analyzed 110 patients (61% T3-4 stage, 71% node-positive). A total of 68.2% of patients received a sequential boost, mainly by IRT; median total EQD2 to primary site was 59.3 Gy. Acute ≥G3 toxicity rate was 36.4%. Median follow-up (FUP) was 35.4 months. A total of 83% of patients achieved clinical complete response (cCR); locoregional recurrence (LRR) occurred in 20.9% and distant metastases in 6.4% of cases. A total of 12.7% patients underwent salvage surgery. A total of 25.5% of patients reported ≥G2 and 4.5% ≥G3 late toxicity. The estimated 3-year overall survival, disease-free survival and colostomy-free survival were 92%, 72% and 84% respectively; 3-year-LRR was 22%. Nodal stage was associated with poorer cCR probability and higher LRR (p<0.05). CONCLUSION: Our results on a large cohort of patients with locally advanced SCAC and long FUP time confirmed the efficacy of IMRT; high local control and manageable toxicity also suggest IRT as a promising method in treatment personalization.


Asunto(s)
Neoplasias del Ano , Dosificación Radioterapéutica , Radioterapia de Intensidad Modulada , Humanos , Masculino , Femenino , Persona de Mediana Edad , Neoplasias del Ano/radioterapia , Neoplasias del Ano/patología , Neoplasias del Ano/mortalidad , Anciano , Radioterapia de Intensidad Modulada/métodos , Radioterapia de Intensidad Modulada/efectos adversos , Adulto , Resultado del Tratamiento , Anciano de 80 o más Años , Estadificación de Neoplasias , Estudios Retrospectivos , Canal Anal/patología , Carcinoma de Células Escamosas/radioterapia , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/mortalidad
3.
Radiat Oncol ; 18(1): 161, 2023 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-37784190

RESUMEN

PURPOSE: One of the main limiting factors of whole-brain radiation therapy (WBRT) for primary central nervous system lymphoma (PCNSL) is the impairment of neurocognitive functions (NCFs), which is mainly caused by radiation-induced injury to the hippocampus. With a view to preventing NCF impairment and personalizing treatment, we explored the feasibility of sparing the hippocampus during WBRT by correlating the sites of PCNSL lesions with the hippocampus. METHODS AND MATERIALS: Pre-treatment MR images from patients who underwent WBRT between 2010 and January 2020-and post-radiotherapy images in cases of relapse-were imported into the Varian Eclipse treatment-planning system and registered with the simulation CT. We constructed three 3-dimensional envelopes around the hippocampus at distances of 5, 10 and 15 mm and also contoured primary lesions and recurrences. RESULTS: We analyzed 43 patients with 66 primary lesions: 9/66 (13.6%) involved the hippocampus and 11/66 (16.7%) were located within 5 mm of it. Thirty-six lesions (54.5%) were situated more than 15 mm from the hippocampus, while 10/66 (15.2%) were between 5 and 15 mm from it. The most common location was in deep brain structures (31%). Thirty-five of the 66 lesions relapsed: in field in 14/35 (40%) and outfield in 21/35 (60%) in different sites. Globally, 16/35 recurrences (45.7%) were located in the hippocampus or within 5 mm of it. CONCLUSION: These data show that routinely sparing the hippocampus is not feasible. This approach could be considered in selected patients, when the lesion is more than 15 mm from the hippocampus.


Asunto(s)
Neoplasias Encefálicas , Linfoma , Traumatismos por Radiación , Radioterapia de Intensidad Modulada , Humanos , Neoplasias Encefálicas/radioterapia , Radioterapia de Intensidad Modulada/métodos , Irradiación Craneana/efectos adversos , Irradiación Craneana/métodos , Recurrencia Local de Neoplasia , Encéfalo , Hipocampo/diagnóstico por imagen , Planificación de la Radioterapia Asistida por Computador/métodos , Traumatismos por Radiación/prevención & control , Linfoma/radioterapia
4.
Radiat Oncol ; 18(1): 84, 2023 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-37218005

RESUMEN

AIMS: Reirradiation of prostate cancer (PC) local recurrences represents an emerging challenge for current radiotherapy. In this context, stereotactic body radiation therapy (SBRT) allows the delivery of high doses, with curative intent. Magnetic Resonance guided Radiation Therapy (MRgRT) has shown promising results in terms of safety, feasibility and efficacy of delivering SBRT thanks to the enhanced soft tissue contrast and the online adaptive workflow. This multicentric retrospective analysis evaluates the feasibility and efficacy of PC reirradiation, using a 0.35 T hybrid MR delivery unit. METHODS: Patients affected by local recurrences of PC and treated in five institutions between 2019 and 2022 were retrospectively collected. All patients had undergone previous Radiation Therapy (RT) in definitive or adjuvant setting. Re-treatment MRgSBRT was delivered with a total dose ranging from 25 to 40 Gy in 5 fractions. Toxicity according to CTCAE v 5.0 and treatment response were assessed at the end of the treatment and at follow-up. RESULTS: Eighteen patients were included in this analysis. All patients had previously undergone external beam radiation therapy (EBRT) up to a total dose of 59.36 to 80 Gy. Median cumulative biologically effective dose (BED) of SBRT re-treatment was 213,3 Gy (103,1-560), considering an α/ß of 1.5. Complete response was achieved in 4 patients (22.2%). No grade ≥ 2 acute genitourinary (GU) toxicity events were recorded, while gastrointestinal (GI) acute toxicity events occurred in 4 patients (22.2%). CONCLUSION: The low rates of acute toxicity of this experience encourages considering MRgSBRT a feasibile therapeutic approach for the treatment of clinically relapsed PC. Accurate gating of target volumes, the online adaptive planning workflow and the high definition of MRI treatment images allow delivering high doses to the PTV while efficiently sparing organs at risk (OARs).


Asunto(s)
Neoplasias de la Próstata , Radiocirugia , Reirradiación , Masculino , Humanos , Estudios Retrospectivos , Radiocirugia/métodos , Reirradiación/efectos adversos , Neoplasias de la Próstata/patología , Imagen por Resonancia Magnética , Espectroscopía de Resonancia Magnética
5.
Urologia ; 89(1): 5-15, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34496707

RESUMEN

Radiotherapy is highly involved in the management of prostate cancer. Its features and potential applications experienced a radical evolution over last decades, as they are associated to the continuous evolution of available technology and current oncological innovations. Some application of radiotherapy like brachytherapy have been recently enriched by innovative features and multidisciplinary dedications. In this report we aim to put some questions regarding the following issues regarding multiple aspects of modern application of radiation oncology: the current application of radiation oncology; the modern role of stereotactic body radiotherapy (SBRT) for both the management of primary lesions and for lymph-nodal recurrence; the management of the oligometastatic presentations; the role of brachytherapy; the aid played by the application of the organ at risk spacer (spacer OAR), fiducial markers, electromagnetic tracking systems and on-line Magnetic Resonance guided radiotherapy (MRgRT), and the role of the new opportunity represented by radiomic analysis.


Asunto(s)
Neoplasias de la Próstata , Radiocirugia , Radioterapia Guiada por Imagen , Humanos , Masculino , Neoplasias de la Próstata/radioterapia , Neoplasias de la Próstata/cirugía
7.
Cancers (Basel) ; 13(2)2021 Jan 06.
Artículo en Inglés | MEDLINE | ID: mdl-33419144

RESUMEN

BACKGROUND AND PURPOSE: The aim of our study was to elaborate a suitable model on bladder late toxicity in prostate cancer (PC) patients treated by radiotherapy with volumetric technique. MATERIALS AND METHODS: PC patients treated between September 2010 and April 2017 were included in the analysis. An observational study was performed collecting late toxicity data of any grade, according to RTOG and CTCAE 4.03 scales, cumulative dose volumes histograms were exported for each patient. Vdose, the value of dose to a specific volume of organ at risk (OAR), impact was analyzed through the Mann-Whitney rank-sum test. Logistic regression was used as the final model. The model performance was estimated by taking 1000 samples with replacement from the original dataset and calculating the AUC average. In addition, the calibration plot (Hosmer-Lemeshow goodness-of-fit test) was used to evaluate the performance of internal validation. RStudio Software version 3.3.1 and an in house developed software package "Moddicom" were used. RESULTS: Data from 175 patients were collected. The median follow-up was 39 months (min-max 3.00-113.00). We performed Mann-Whitney rank-sum test with continuity correction in the subset of patients with late bladder toxicity grade ≥ 2: a statistically significant p-value with a Vdose of 51.43 Gy by applying a logistic regression model (coefficient 4.3, p value 0.025) for the prediction of the development of late G ≥ 2 GU toxicity was observed. The performance for the model's internal validation was evaluated, with an AUC equal to 0.626. Accuracy was estimated through the elaboration of a calibration plot. CONCLUSIONS: Our preliminary results could help to optimize treatment planning procedures and customize treatments.

8.
Support Care Cancer ; 29(8): 4555-4563, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33479794

RESUMEN

PURPOSE: Psychological distress in primary malignant brain tumour (PMBT) patients is associated with poorer outcomes. Radiotherapy (RT) often induces side effects that significantly influence patients' quality of life (QoL), with potential impact on survival. We evaluated distress, anxiety, depression, and QoL over time to identify patients with difficulties in these areas who required more intense psychological support. METHODS: Psychological questionnaires-Distress Thermometer (DT), Hospital Anxiety and Depression Scale (HADS), and Functional Assessment of Cancer Therapy (FACT-G and FACT-Br)-were completed at the beginning (T0), in the middle (T1), directly after RT (T2), and 3 months after RT (T3). We personalised the psychological support provided for each patient with a minimum of three sessions ('typical' schedule) and a maximum of eight sessions ('intensive' schedule), depending on the patients' psychological profiles, clinical evaluations, and requests. Patients' survival was evaluated in the glioblastoma multiforme (GBM) patients, with an explorative intent. RESULTS: Fifty-nine consecutive PMBT patients receiving post-operative RT were included. For patients who were reported as 'not distressed' at T0, no statistically significant changes were noted. In contrast, patients who were 'distressed' at T0 showed statistically significant improvements in DT, HADS, FACT-G, and FACT-Br scores over time. 'Not distressed' patients required less psychological sessions over the study duration than 'distressed' patients. Interestingly, 'not distressed' GBM patients survived longer than 'distressed' GBM patients. CONCLUSIONS: Increased psychological support improved distress, mood, and QoL for patients identified as 'distressed', whereas psychological well-being was maintained with typical psychological support in patients who were identified as being 'not distressed'. These results encourage a standardisation of psychological support for all RT patients.


Asunto(s)
Neoplasias Encefálicas/psicología , Distrés Psicológico , Psicoterapia/estadística & datos numéricos , Calidad de Vida/psicología , Radioterapia/psicología , Adulto , Anciano , Ansiedad/mortalidad , Ansiedad/psicología , Ansiedad/terapia , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/radioterapia , Depresión/mortalidad , Depresión/psicología , Depresión/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicooncología/métodos , Psicooncología/estadística & datos numéricos , Radioterapia/mortalidad , Estrés Psicológico/mortalidad , Estrés Psicológico/psicología , Estrés Psicológico/terapia , Encuestas y Cuestionarios , Escala Visual Analógica
9.
J Cancer Res Clin Oncol ; 147(3): 661-667, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33001271

RESUMEN

PURPOSE: To investigate the potential benefits of a hypofractionated radiotherapy boost (HRB) after chemotherapy (CT) and concomitant chemoradiotherapy (CRT) in locally advanced pancreatic cancer (LAPC) patients. Primary endpoints were early and late toxicity, local control (LC) and pain-free progression (PFP) assessment. Two-years overall survival (OS), metastasis-free survival (MFS) and disease-free survival (DFS) were secondary endpoints. MATERIALS AND METHODS: Patients (pts) affected by unresectable non-metastatic LAPC, previously treated with CT and CRT in upfront or sandwich setting, were selected for sequential HRB. Total prescribed dose was 30 Gy in 5 fractions (fr) to pancreatic primary lesion. Dose de-escalation was allowed in case of failure in respecting organs at risk constraints. Early and late toxicity were assessed according to CTCAE v.4.0 classification. The Kersh-Hazra scale was used for pain assessment. Local Control, PFP, MFS and DFS were calculated from the date of HRB to the date of relapse or the date of the last follow-up. RESULTS: Thirty-one pts affected by unresectable, non-metastatic LAPC were consecutively enrolled from November 2004 to October 2019. All pts completed the planned HRB. Total delivered dose varied according to duodenal dose constraint: 20 Gy in 5 fr (N: 6; 19.4%), 20 Gy in 4 fr (N: 5; 16.2%), 25 Gy in 5 fr (N: 18; 58.0%) and 30 Gy in 6 fr (N: 2; 6.4%). Early and late toxicity were assessed in all pts: no Grade 3 or 4 acute gastrointestinal toxicity and no late gastrointestinal complications occurred. Median LC was 19 months (range 1-156) and 1- and 2-year PFP were 85% and 62.7%, respectively (median 28 months; range 2-139). According to the Kersh-Hazra scale, four pts had a Grade 3 and four pts had a Grade 1 abdominal pain before HRB. At the last follow-up only 3/31 pts had residual Grade 1 abdominal pain.Median MFS was 18 months (range 1-139). The 2-year OS after HRB was 57.4%, while 2-year OS from diagnosis was 77.3%. CONCLUSION: Treatment intensification with hypofractionated radiotherapy boost is well tolerated in pts affected by unresectable LAPC previously treated with CT/CRT. Its rates of local and pain control are encouraging, supporting its introduction in clinical practice. Timing, schedule and dose of HRB need to be further investigated to personalize therapy and optimize clinical advantages.


Asunto(s)
Neoplasias Pancreáticas/radioterapia , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Capecitabina/administración & dosificación , Quimioradioterapia , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Supervivencia sin Enfermedad , Femenino , Fluorouracilo/administración & dosificación , Humanos , Irinotecán/administración & dosificación , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Oxaliplatino/administración & dosificación , Neoplasias Pancreáticas/tratamiento farmacológico , Neoplasias Pancreáticas/patología , Hipofraccionamiento de la Dosis de Radiación , Estudios Retrospectivos , Tasa de Supervivencia , Gemcitabina
11.
Front Cardiovasc Med ; 7: 565471, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33330640

RESUMEN

Introduction: Although catheter ablation is the current gold standard treatment for refractory ventricular arrhythmias, sometimes its efficacy is not optimal and it's associated with high risks of procedural complication and death. Stereotactic arrhythmia radioablation (STAR) is increasingly being adopted for such clinical presentation, considering its efficacy and safety. Case Presentation: We do report our experience managing a case of high volume of left ventricle for refractory ventricular tachycardia in advanced heart failure patient, by delivering a single fraction of STAR through an highly personalization of dose delivery applying repeated inter- and continuous intra-fraction image guidance. Conclusion: According to the literature reports, we recommend considering increasing as much as possible the personalization features and safety technical procedure as long as that is not significantly affecting the STAR duration. Moreover, the duration in itself shouldn't be the main parameter, but balanced into the frame of possibly obtainable outcome improvement. At best of our knowledge, this is the first report applying such specific technology onto this clinical setting. Future studies will clarify these issues.

12.
In Vivo ; 34(3): 1297-1305, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32354922

RESUMEN

BACKGROUND/AIM: The aim of the study was to evaluate acute and late genitourinary (GU) and gastrointestinal (GI) toxicity in patients with high- or intermediate-risk prostate cancer. PATIENTS AND METHODS: We evaluated data of patients from three Radiation Oncology Departments (Rome, Lübeck and Perugia). Patients treated in Rome underwent exclusive intensity-modulated-radiotherapy (IMRT) or IMRT plus high-dose-rate interventional radiotherapy (HDR-IRT). IMRT plus two fractions HDR-IRT was performed in Lübeck, while in Perugia Helical Tomotherapy was performed. The Common Toxicity Criteria for Adverse Event (Version 4.03) scale was used to describe acute and late toxicity. RESULTS: At a median follow-up of 28 months, all 51 patients were alive and disease-free. Patients treated by HDR-IRT plus VMAT showed only G1-2 genitourinary- gastrointestinal (GU-GI) acute and late toxicity. Univariate analysis showed a lower risk of acute GU toxicity (p=0.048) in IMRT+HDR-IRT. CONCLUSION: Low grade and less acute GU toxicity was observed in patients undergoing HDR-IRT boost.


Asunto(s)
Braquiterapia , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/radioterapia , Dosificación Radioterapéutica , Radioterapia de Intensidad Modulada , Tomografía Computarizada Espiral , Anciano , Anciano de 80 o más Años , Braquiterapia/efectos adversos , Braquiterapia/métodos , Manejo de la Enfermedad , Fraccionamiento de la Dosis de Radiación , Humanos , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Planificación de la Radioterapia Asistida por Computador , Radioterapia de Intensidad Modulada/efectos adversos , Radioterapia de Intensidad Modulada/métodos , Recurrencia , Resultado del Tratamiento
13.
Med Oncol ; 35(11): 146, 2018 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-30218407

RESUMEN

OBJECTIVES: Treatment of oligometastatic patients is a current challenge in radiation oncology. Aim of this study is to define a dose-response relationship for hypofractionated radiotherapy of oligometastases. METHODS: Retrospective analysis of metastases treated by hypofractionated stereotactic radiotherapy was performed. Delivered dose was calculated both as biological effective dose (BED10), and as ratio between BED10 and the logarithm of metastasis volume (BED10 logVolume Ratio, BVR). Two dose-response models were defined by logistic regression. The fitted outcome was the Metastases Complete Response (MCR). Performances of the models were assessed by area under the receiver operating curve (AUC) and by bootstrap calibration of original data. BED10 and BVR impact on survival outcomes has been evaluated. RESULTS: Fifty-three patients with 79 metastases were analyzed. AUC and calibration of BVR-based logistic model showed better accuracy in predicting MCR with respect to BED10-based model. No significant difference between the two ROCs was observed (De Long test p value > 0.05), but significant discordance in calibration resulted in the BED10 model (p value < 0.05 in Hosmer-Lemeshow Goodness of fit test). BVR returned also better results in multivariate analyses for survival outcomes. CONCLUSIONS: The ratio between BED10 and the logarithm of metastasis volume (BVR), as a corrective factor for fitting the probability of metastases response to stereotactic radiotherapy, could be a tool for evaluating and prescribing treatments for oligometastatic disease. BVR can be useful for producing more reliable survival statistics too.


Asunto(s)
Modelos Teóricos , Neoplasias/diagnóstico , Neoplasias/terapia , Hipofraccionamiento de la Dosis de Radiación , Radiocirugia/métodos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Dosificación Radioterapéutica , Estudios Retrospectivos , Resultado del Tratamiento
14.
Prostate Cancer Prostatic Dis ; 21(4): 564-572, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-30038390

RESUMEN

BACKGROUD: The European Organization for Research and Treatment of Cancer (EORTC) trial 22,911 reported 74% 5-year biochemical disease-free survival (bDFS) in patients with prostate carcinoma treated with radical prostatectomy (RP) followed by postoperative radiotherapy (RT). This study aimed to improve these outcomes by using a combined-intensified-modulated-adjuvant treatment, including RT and hormone therapy (HT) after RP. MATERIALS AND METHODS: This phase I/II trial treatment was designed to improve 5-year bDFS from ~ 75 to 90%. Patients were consecutively enrolled using the following inclusion criteria: age < 80 years, histological diagnosis of prostate adenocarcinoma without known metastases, stage pT2-4N0-1, and Eastern Cooperative Oncology Group performance status of 0-2. All patients had at least one of these pathologic features: capsular perforation, positive surgical margins, seminal vesicle invasion, and pelvic lymph nodes involvement. A minimum dose of 64.8 Gy to the tumor bed was delivered in all patients. Depending on tumor characteristics at diagnosis, patients received a higher dose (70.2 Gy; 85.4%) and/or prophylactic pelvic lymph nodes irradiation (57.7%) and/or HT (69.1%). Biochemical relapse was defined as two consecutive rising prostate-specific antigen (PSA) values > 0.2 ng/ml. RESULTS: A total of 123 patients were enrolled in the study and completed the scheduled treatment. Median preoperative and postoperative PSA were: 8.8 and 0.06 ng/mL, respectively. The percentages of patients with pathologically involved nodes and positive resection margins were: 14.6% and 58.5%, respectively. With a median follow-up of 67 months (range: 37-120 months), the actuarial 5-year bDFS, local control, metastasis-free survival, and overall survival (OS) were: 92.9%, 98.7%, 96.1%, and 95.1%, respectively. CONCLUSION: A higher 5-year bDFS (92.9%) was recorded compared to studies based on standard adjuvant RT, even though patients with nodal disease and detectable postoperative PSA were enrolled. Clinical end points, as long-term disease-free survival and OS, will require further assessments. (ClinicalTrials.gov: NCT03169933).


Asunto(s)
Cuidados Posoperatorios , Neoplasias de la Próstata/terapia , Anciano , Terapia Combinada , Estudios de Seguimiento , Humanos , Ganglios Linfáticos/patología , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Cuidados Posoperatorios/métodos , Pronóstico , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/mortalidad , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
15.
J Contemp Brachytherapy ; 9(3): 287-295, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28725254

RESUMEN

Eye plaque brachytherapy represents a safe and effective therapeutic approach for choroidal melanoma, combining clinical outcomes with an eye and visual preservation. As it represents a complex procedure, a specific quality assurance program is strongly suggested to improve patients and operators safety, and to reduce possible complications linked to surgical procedure and radiation exposure. The aim of this paper is to describe the INTERACTS (Interventional Radiotherapy Active Teaching School) guidelines for quality assurance in choroidal melanoma interventional radiotherapy (brachytherapy) used in our institution.

16.
J Appl Clin Med Phys ; 16(5): 35-45, 2015 09 08.
Artículo en Inglés | MEDLINE | ID: mdl-26699314

RESUMEN

The purpose of this study was to investigate the magnitude and dosimetric relevance of translational and rotational shifts on IGRT prostate volumetric-modulated arc therapy (VMAT) using Protura six degrees of freedom (DOF) Robotic Patient Positioning System. Patients with cT3aN0M0 prostate cancer, treated with VMAT simultaneous integrated boost (VMAT-SIB), were enrolled. PTV2 was obtained adding 0.7 cm margin to seminal vesicles base (CTV2), while PTV1 adding to prostate (CTV1) 0.7 cm margin in all directions, except 1.2 cm, as caudal margin. A daily CBCT was acquired before dose delivery. The translational and rotational displacements were corrected through Protura Robotic Couch, collected and applied to the simulation CT to obtain a translated CT (tCT) and a rototranslated CT (rtCT) on which we recalculated the initial treatment plan (TP). We analyzed the correlation between dosimetric coverage, organs at risk (OAR) sparing, and translational or rotational displacements. The dosimetric impact of a rototranslational correction was calculated. From October 2012 to September 2013, a total of 263 CBCT scans from 12 patients were collected. Translational shifts were < 5 mm in 81% of patients and the rotational shifts were < 2° in 93% of patient scans. The dosimetric analysis was performed on 172 CBCT scans and calculating 344 VMAT-TP. Two significant linear correlations were observed between yaw and the V20 femoral heads and between pitch rotation and V50 rectum (p < 0.001); rototranslational correction seems to impact more on PTV2 than on PTV1, especially when margins are reduced. Rotational errors are of dosimetric significance in sparing OAR and in target coverage. This is relevant for femoral heads and rectum because of major distance from isocenter, and for seminal vesicles because of irregular shape. No correlation was observed between translational and rotational errors. A study considering the intrafractional error and the deformable registration is ongoing.


Asunto(s)
Movimiento/fisiología , Posicionamiento del Paciente/normas , Neoplasias de la Próstata/radioterapia , Planificación de la Radioterapia Asistida por Computador/métodos , Errores de Configuración en Radioterapia/prevención & control , Radioterapia de Intensidad Modulada/normas , Robótica/normas , Lechos , Humanos , Masculino , Posicionamiento del Paciente/métodos , Dosificación Radioterapéutica , Robótica/métodos , Rotación
17.
Anticancer Res ; 35(5): 3055-9, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25964595

RESUMEN

AIM: To analyze the outcome of patients with brain oligometastases treated by radiosurgery (SRS) or fractionated stereotactic radiotherapy (FSRT) after whole-brain radiotherapy (WBRT). PATIENTS AND METHODS: Overall survival (OS) and local control (LC) were evaluated in patients (patients) with 1-2 brain metastases. RESULTS: Forty-seven patients were selected. They were submitted to WBRT (median dose=3,750 cGy) followed by SRS (17 patients; median dose=1,500 cGy) or FSRT (30 patients; median dose=2,000 cGy). Median follow-up was 102 months (range=17-151); the median survival was 22 months for the SRS group and 16 months for the FSRT group. One-year and 5-year survival was 56% and 16%, respectively, in SRT and 62.1% and 3%, respectively, in FSRT. Neither treatment proved to significantly impact OS (p=0.4). The 1-year LC rates were 80% and 61.1% in the two groups, respectively (p=0.15). CONCLUSION: SRS or FSRT after WBRT could offer the same outcomes in patients with brain oligometasteses. Further investigation is warranted to confirm these data and define the optimal stereotactic modality.


Asunto(s)
Neoplasias Encefálicas/radioterapia , Fraccionamiento de la Dosis de Radiación , Neoplasias/radioterapia , Radiocirugia/métodos , Adulto , Anciano , Neoplasias Encefálicas/secundario , Femenino , Humanos , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Neoplasias/patología , Pronóstico , Dosis de Radiación , Estudios Retrospectivos , Análisis de Supervivencia
18.
Biomed Res Int ; 2014: 480725, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25093169

RESUMEN

PURPOSE: To perform a preliminary feasibility acute and late toxicity evaluation of an intensified and modulated adjuvant treatment in prostate cancer (PCa) patients after radical prostatectomy. MATERIAL AND METHODS: A phase I/II has been designed. Eligible patients were 79 years old or younger, with an ECOG of 0-2, previously untreated, histologically proven prostate adenocarcinoma with no distant metastases, pT2-4 N0-1, and with at least one of the following risk factors: capsular perforation, positive surgical margins, and seminal vesicle invasion. All patients received a minimum dose on tumor bed of 64.8 Gy, or higher dose (70.2 Gy; 85.4%), according to the pathological stage, pelvic lymph nodes irradiation (57.7%), and/or hormonal therapy (69.1%). RESULTS: 123 patients were enrolled and completed the planned treatment, with good tolerance. Median follow-up was 50.6 months. Grade 3 acute toxicity was only 2.4% and 3.3% for genitourinary (GU) and gastrointestinal (GI) tract, respectively. No patient had late grade 3 GI toxicity, and the GU grade 3 toxicity incidence was 5.8% at 5 years. 5-year BDSF was 90.2%. CONCLUSIONS: A modulated and intensified adjuvant treatment in PCa was feasible in this trial. A further period of observation can provide a complete assessment of late toxicity and confirm the BDSF positive results.


Asunto(s)
Carcinoma/tratamiento farmacológico , Quimioterapia Adyuvante , Neoplasias de la Próstata/tratamiento farmacológico , Adulto , Anciano , Carcinoma/patología , Carcinoma/radioterapia , Fraccionamiento de la Dosis de Radiación , Humanos , Masculino , Persona de Mediana Edad , Prostatectomía , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/radioterapia , Dosificación Radioterapéutica , Ensayos Clínicos Controlados Aleatorios como Asunto
19.
Urologia ; 80(3): 188-201, 2013.
Artículo en Italiano | MEDLINE | ID: mdl-24526595

RESUMEN

Prostate cancer is a heterogeneous, indolent or sometimes aggressive tumor. Treatment options are various and without proved superiority. Radiotherapy (RT) plays a key role in the disease history. Technological evolution with Intensity Modulate Radiation Therapy (IMRT) and Image Guided Radiation Therapy (IGRT) allowed improvement, with significant results on local control and survival. Hypofractionation, Stereotactic Body RT (SBRT) and new brachytherapy approachs are still under investigation, with promising opportunities. Adjuvant vs salvage postoperative RT, hormone association, prophylactic pelvic irradiation are still under debate, but guidelines express overlapping indications.
Multidisciplinary managements will be the future for care optimization, providing the best tool for holistic and informed patients' choice.


Asunto(s)
Neoplasias de la Próstata/radioterapia , Terapia Combinada , Humanos , Masculino , Neoplasias de la Próstata/cirugía , Radioterapia/métodos
20.
Med Oncol ; 29(5): 3478-83, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22674154

RESUMEN

To analyse the impact of age and co-morbidities on compliance and outcomes in GBM patients enrolled in three prospective phase II trials. GBM patients (≥ 18 years) were treated with radiotherapy (60 Gy) or enrolled in a Fractionated Stereotactic Conformal-Radiotherapy Phase II trial (69.4 Gy). Concomitant and adjuvant chemotherapy with Temozolomide (TMZ) was administered. Charlson Index Co-morbidity (CCI) was used to assess co-morbidity. Toxicity was evaluated according to RTOG score. Survival analysis was performed by the Kaplan-Maier. Influence of age and co-morbidity was evaluated using log-rank test. From 2001 to 2008, 146 patients were enrolled: 56 (38.4 %) aged over 65 and 90 under 65. CCI ≥ 1 was observed in 41 % of elderly and 22 % of young group. Patients' compliance was 97.9 % for radio-chemotherapy. Acute toxicity was mild with no difference between the groups. Global median progression-free survival (PFS) and overall survival (OS) were 12 and 18 months, respectively. Age, surgery and radiation dose correlated with survival (p = 0.01, p = 0.04 and p = 0.03). CCI ≤ 2 did not show any influence on OS. Our data show that elderly with a good performance status and few co-morbidity may be treated as younger patients; moreover, age confirms a negative impact on survival while CCI ≤ 2 did not correlated with OS.


Asunto(s)
Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/terapia , Glioblastoma/mortalidad , Glioblastoma/terapia , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Antineoplásicos/administración & dosificación , Terapia Combinada , Comorbilidad , Dacarbazina/administración & dosificación , Dacarbazina/análogos & derivados , Supervivencia sin Enfermedad , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Radiocirugia , Radioterapia , Temozolomida , Adulto Joven
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