Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 48
Filtrar
1.
Artigo em Inglês | MEDLINE | ID: mdl-38971685

RESUMO

AIMS: The National Palliative Care and Interventional Radiotherapy Study Groups of the Italian Association of Radiotherapy and Clinical Oncology (AIRO) carried out a survey whose aim was to obtain a "snapshot" of the real-world practice of nonmelanoma skin cancer (NMSC) treatments in Italy. MATERIALS AND METHODS: The survey was conducted on SurveyMonkey's online interface and was sent via e-mail to our society Radiation Oncologists. RESULTS: Fifty-eight Italian radiation oncologists (ROs), representing 54 centers, answered the survey. Thirteen percent of the ROs declared they treat fewer than 10 NMSC lesions annually, 36% treat between 11 and 20, and 51% treat more than 20 lesions annually. Interventional radiotherapy (IRT) was offered by 25% of the ROs, and every case was reportedly discussed by a multidisciplinary team (71%). Electrons (74%), volumetric modulated arc therapy (V-MAT) (57%), three-dimensional conformal radiotherapy (3D-CRT) (43%), and IRT (26%) were the main treatment options. With external beam radiotherapy (EBRT), 46 and 53 different RT schedules were treated for curative and palliative intent, respectively; whereas for IRT, there were 21 and 7 for curative and palliative intent, respectively. The most popular EBRT curative options were 50-70.95/22-35 fractions (fx) and 50-70 Gy/16-20fx and for EBRT palliative settings, 30Gy/10fx, and 20-35Gy/5fx. For IRT, the most popular curative options were 32-50Gy/8-10fx and 30-54Gy/3-5fx, whereas 30Gy/6fz was the palliative option. Less than 10 re-RT cases were reported in one year in 42.5%, 11-20 cases in 42.5%, and >20 cases annually in 15%. Electrons (61%), VMAT (49%), and BRT (25%) were the most widely used approaches: 20-40Gy in 10fx and 20-25Gy in 5fx were the recommended fractionations. CONCLUSION: The survey shows a variegated reality. A national registry with more detailed data could help in undercover its causes.

2.
Radiother Oncol ; 166: 92-99, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34748855

RESUMO

INTRODUCTION: Stereotactic ablative radiotherapy (SABR) has been shown to increase survival in oligometastatic disease, but local control of colorectal metastases remains poor. We aimed to identify potential predictive factors of SBRT response through a multicenter large retrospective database and to investigate the progression to the polymetastatic disease (PMD). MATERIAL AND METHODS: The study involved 23 centers, and was approved by the Ethical Committee (Prot. Negrar 2019-ZT). 1033 lung metastases were reported. Clinical and biological parameters were evaluated as predictive for freedom from local progression-free survival (FLP). Secondary end-point was the time to the polymetastatic conversion (tPMC). RESULTS: Two-year FLP was 75.4%. Two-year FLP for lesions treated with a BED < 00 Gy, 100-124 Gy, and ≥125 Gy was 76.1%, 70.6%, and 94% (p = 0.000). Two-year FLP for lesion measuring ≤10 mm, 10-20 mm, and >20 mm was 79.7%, 77.1%, and 66.6% (p = 0.027). At the multivariate analysis a BED ≥125 Gy significantly reduced the risk of local progression (HR 0.24, 95%CI 0.11-0.51; p = 0.000). Median tPMC was 26.8 months. Lesions treated with BED ≥125 Gy reported a significantly longer tPMC as compared to lower BED. The median tPMC for patients treated to 1, 2-3 or 4-5 simultaneous oligometastases was 28.5, 25.4, and 9.8 months (p = 0.035). CONCLUSION: The present is the largest series of lung colorectal metastases treated with SABR. The results support the use of SBRT in lung oligometastatic colorectal cancer patients as it might delay the transition to PMD or offer relatively long disease-free period in selected cases. Predictive factors were identified for treatment personalization.


Assuntos
Neoplasias Colorretais , Neoplasias Pulmonares , Radiocirurgia , Neoplasias Retais , Neoplasias Colorretais/patologia , Humanos , Radiocirurgia/métodos , Neoplasias Retais/etiologia , Estudos Retrospectivos
3.
Clin Transl Oncol ; 23(8): 1577-1584, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33495981

RESUMO

OBJECTIVES: To report outcomes of stereotactic body radiotherapy (SBRT) in metastatic castration-resistant prostate cancer (mCRPC) patients with oligoprogression (≤ 5 metastases) during first-line treatment with androgen receptor-targeted therapy (ARTT). PATIENTS AND METHODS: Retrospective multi-institutional analysis of mCRPC patients treated with SBRT to oligoprogressive lesions during ARTT. End-points were time to next-line systemic treatment (NEST), radiological progression-free survival (r-PFS) and overall survival (OS). Toxicity was registered according to Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Survival analysis was performed using the Kaplan-Meier method, univariate and multivariate analysis (MVA) were performed. RESULTS: Data from 34 patients were analyzed. Median NEST-free survival, r-PFS, and OS were 16.97, 13.47, and 38.3 months, respectively. At MVA, factors associated with worse NEST-free survival and r-PFS were polymetastatic burden at diagnosis of metastatic hormone-sensitive disease (hazard ratio [HR] 3.66, p = 0.009; HR 3.03, p = 0.034), PSA ≤ 7 ng/ml at mCRPC diagnosis (HR 0.23, p = 0.017; HR 0.19, p = 0.006) and PSADT ≤ 3 months at mCRPC diagnosis (HR 3.39, p = 0.026; HR 2.79, p = 0.037). Polymetastatic state at mHSPC diagnosis was associated with a decreased OS (HR 4.68, p = 0.029). No patient developed acute or late grade ≥ 2 toxicity. CONCLUSION: Our results suggest that SBRT in oligoprogressive mCPRC is safe, effective and seems to prolong the efficacy of the ongoing systemic treatment positively affecting disease progression. Prospective trials are needed.


Assuntos
Antagonistas de Receptores de Andrógenos/uso terapêutico , Terapia de Alvo Molecular/métodos , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/radioterapia , Radiocirurgia/métodos , Idoso , Análise de Variância , Terapia Combinada/métodos , Progressão da Doença , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Neoplasias de Próstata Resistentes à Castração/mortalidade , Neoplasias de Próstata Resistentes à Castração/patologia , Dosagem Radioterapêutica , Estudos Retrospectivos , Resultado do Tratamento
4.
J Neurosurg Sci ; 53(1): 7-11, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19322130

RESUMO

AIM: Fractionated stereotactic radiotherapy is an alternative to radiosurgery or conformal radiotherapy when meningiomas are surgically inaccessible, incompletely removed, or recurrent. The authors report preliminary results of a feasible trial on hypofractionated stereotactic radiotherapy (hFSRT) in patients (pts) with intracranial meningiomas. METHODS: From August 2003 to May 2007, 35 consecutive pts with a median age of 59 years (range, 23-86) underwent hFSRT for intracranial meningiomas. Male/female ratio was 9/26, median Karnofsky performance status was 90 (range, 60-100). In 14 lesions (40%) diagnosis was based upon clinical and radiological data. After surgery or biopsy, 19 pts had histologically proven World Health Organization grade I and 2 pts grade II meningiomas. The median treatment volume was 23 cc (range, 4-58 cc). Before hFSRT, 26 (74%) pts had neurologic symptoms. Nineteen (54%) pts received 42 Gy and 16 (46%) 45 Gy of total dose, 3 Gy/fraction, 5 fractions/week. RESULTS: The median follow-up was 29 months (range, 10-51) and 22 (63%) pts had a follow-up 24 months. Treatment was well tolerated and we did not observe clinically significant acute and late toxicity. At instrumental control, 32 (91%) lesions remained stable, 2 (6%) decreased and 1 (3%) progressed in size. Median duration of local control was 24 months (range, 4-47), and median progression free survival 23 months (range, 4-47). Clinical improvement of pre-existing neurological symptoms was observed in 84% of cases. CONCLUSIONS: These preliminary data suggest that hFSRT is a safe and effective treatment modality for intracranial meningiomas.


Assuntos
Neoplasias Encefálicas/radioterapia , Meningioma/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Fracionamento da Dose de Radiação , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Técnicas Estereotáxicas , Resultado do Tratamento , Adulto Jovem
5.
Clin Transl Oncol ; 21(11): 1532-1537, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30868389

RESUMO

INTRODUCTION: Salvage radiotherapy (SRT) after radical prostatectomy for prostate cancer (PCa) is recommended as soon as PSA rises above 0.20 ng/ml, but many patients (pts) still experience local macroscopic relapse. The aim of this multicentric retrospective analysis was to evaluate the role of SRT in pts with macroscopic relapse. MATERIALS AND METHODS: From 2001 to 2016, 105 consecutive pts with macroscopic PCa relapse underwent SRT ± androgen deprivation therapy (ADT). Mean age was 72 years. At time of relapse, 29 pts had a PSA value < 1.0 ng/mL, 50 from 1.1 to 5, and 25 pts > 5. Before SRT, 23 pts had undergone 18F-choline PET and 15 pts pelvic MRI. Ninety-four pts had prostatic bed relapse only, and four nodal involvement. Fifty-one pts were previously submitted to first-line ADT, while 6 pts received ≥ 2 lines. RESULTS: At a median follow-up of 52 months, 89 pts were alive, while 16 were dead. Total RT dose to macroscopic lesions was > 70 Gy in 58 pts, 66-70 Gy in 43, and < 66 Gy in 4 pts. In 72 pts, target volume encompassed only the prostatic bed with sequential boost to macroscopic site; 33 pts received prophylactic pelvic RT. Ten-year overall survival was 76.1%, while distant metastasis-free survival was 73.3%. No grade 4-5 toxicities were found. CONCLUSIONS: SRT ± ADT for macroscopic relapse showed a favorable oncological outcome supporting its important role in this scenario. Data from this series suggest that SRT may either postpone ADT or improve results over ADT alone in appropriately selected pts.


Assuntos
Recidiva Local de Neoplasia/radioterapia , Neoplasias da Próstata/radioterapia , Terapia de Salvação/métodos , Idoso , Idoso de 80 Anos ou mais , Antagonistas de Androgênios/uso terapêutico , Terapia Combinada/métodos , Seguimentos , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/sangue , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/mortalidade , Tomografia por Emissão de Pósitrons , Antígeno Prostático Específico/sangue , Prostatectomia , Neoplasias da Próstata/sangue , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/terapia , Dosagem Radioterapêutica , Estudos Retrospectivos , Análise de Sobrevida
9.
Int J Radiat Oncol Biol Phys ; 32(4): 959-67, 1995 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-7607970

RESUMO

PURPOSE: In assessing effectiveness of radiation therapy (RT) in metastatic spinal cord compression (MSCC), we performed a prospective trial in which patients with this complication were generally treated with RT plus steroids, and surgery was reserved for selected cases. METHODS AND MATERIALS: Two hundred seventy-five consecutive patients with MSCC entered this protocol. Twenty (7%) underwent surgery plus RT, another 255 received RT alone. Of all eligible patients, 25 (10%) early deaths and 21 (8%) entering a feasibility study of RT without steroids, were not evaluable. Of the 209 evaluable cases, 110 were females and 99 males, and median age was 62 years. Median follow-up was 49 months (range, 13 to 88) and treatment consisted of 30 Gy RT (using two different schedules) together with steroids (standard or high doses, depending on motor deficit severity). Response was assessed according to back pain and motor and bladder function before and after therapy. RESULTS: Back pain total response rate was 82% (complete or partial response or stable pain, 54, 17, or 11%, respectively). About three-fourths of the patients (76%) achieved full recovery or preservation of walking ability and 44% with sphincter dysfunction improved. Early diagnosis was the most important response predictor so that a large majority of patients able to walk and with good bladder function maintained these capacities. When diagnosis was late, tumors with favorable histologies (i.e., myeloma, breast, and prostate carcinomas) above all responded to RT. Duration of response was also influenced by histology. Favorable histologies are associated to higher median response (myeloma, breast, and prostate carcinomas, 16, 12, and 10 months, respectively). Median survival time was 6 months, with a 28% probability of survival for 1 year. Survival time was longer for patients able to walk before and/or after RT, those with favourable histologies, and females. There was agreement between patient survival and duration of response, systemic relapse of disease being generally the cause of death. CONCLUSION: Early diagnosis of MSCC was a powerful predictor of outcome. Primary tumor histology had weight only when patients were nonwalking, paraplegic, or had bladder dysfunction. The effectiveness of RT plus steroids in MSCC emerged in our trial. The most important factors positively conditioning our results were: the high rate of early diagnoses (52%) and the number of tumors with favorable histologies (124 out of 209, 63%) recruited, and the choice of best treatment based on appropriate patient selection for surgery and RT or RT alone.


Assuntos
Compressão da Medula Espinal/radioterapia , Neoplasias da Coluna Vertebral/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Viabilidade , Feminino , Humanos , Locomoção , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Paraplegia/radioterapia , Seleção de Pacientes , Estudos Prospectivos , Compressão da Medula Espinal/mortalidade , Compressão da Medula Espinal/cirurgia , Neoplasias da Coluna Vertebral/mortalidade , Neoplasias da Coluna Vertebral/secundário , Neoplasias da Coluna Vertebral/cirurgia , Análise de Sobrevida
10.
Int J Radiat Oncol Biol Phys ; 24(2): 301-6, 1992.
Artigo em Inglês | MEDLINE | ID: mdl-1526868

RESUMO

Fifty-six breast cancer patients with metastatic spinal cord compression were consecutively treated with radiation therapy alone. All patients received steroids plus chemotherapy and/or hormonal therapy. Emergency radiation therapy was administered using a split-course regimen: 5 Gy for 3 days, stopped for 4 days and, only in responders, a further 3 Gy for 5 days (time dose fractionation 68). Median follow-up was 22 months (range, 4 to 52 months). Response and survival were assessed on the basis of, pretreatment and posttreatment walking capacity, presence of vertebral body collapse or osteolysis, presence of other metastatic sites apart from bone and chemotherapy and/or hormonal therapy. In 89% of patients with back pain the pain disappeared or lessened. Four of 6 cases (67%) with urinary dysfunction responded to radiation therapy. Of 35 cases with motor dysfunction at the time of diagnosis, 21 (60%) regained the ability to walk and another five (14%) who were able to walk with support at diagnosis did not deteriorate. All 21 cases without motor deficits before treatment maintained good motor performance after radiation therapy. Response to therapy was better in pretreatment walking than in nonwalking patients (97% vs 69%; p less than 0.02). Probability of duration of response at 1 year was 59% and 10% for posttreatment walking and nonwalking patients, respectively (p less than 0.0001). One year survival probability was 66% for posttreatment walking and 10% for posttreatment nonwalking patients, respectively (p less than 0.0001). Pretreatment and posttreatment ambulatory status were the most important prognostic factors.


Assuntos
Neoplasias da Mama/patologia , Compressão da Medula Espinal/radioterapia , Neoplasias da Medula Espinal/secundário , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/mortalidade , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Compressão da Medula Espinal/epidemiologia , Compressão da Medula Espinal/etiologia , Neoplasias da Medula Espinal/complicações , Neoplasias da Medula Espinal/epidemiologia , Taxa de Sobrevida
11.
Int J Radiat Oncol Biol Phys ; 38(5): 1037-44, 1997 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-9276370

RESUMO

PURPOSE: To evaluate the clinical outcome and toxicity of a short-course regimen of radiotherapy (RT) in selected metastatic spinal cord compression (MSCC) patients. METHODS AND MATERIALS: Between 1993 and 1995, 53 consecutive patients with MSCC from low radio-responsive primary tumors (non small cell lung, kidney, head and neck and gastrointestinal carcinomas, melanoma and sarcomas), or more radio-responsive ones (breast and prostate carcinomas, myeloma and lymphomas) with paresis, plegia, low performance status (PS ECOG > or = 2), and/or short life expectation, underwent short-course RT; a single fraction of 8 Gy repeated after 1 week in responders or stable patients, for a total dose of 16 Gy. Of 49 (92%) evaluable cases, 4 (8%) underwent surgery plus RT and the other 45 RT alone. Medium doses of parenteral dexamethasone (8 mg x 2/d) were given in all cases and precautional anti-emetics to those treated with fields covering the upper abdomen (20 of 49 cases). Median follow up was 25 months (range, 6-34). Response was assessed according to back pain, and motor and bladder capacity before and after RT. RESULTS: Pain relief was achieved in 67% of patients and motor function response rate reached 63%. Early diagnosis and therapy were very important in predicting response to RT; all but two (91%) pretreatment walking patients and all but one (98%) with good bladder function preserved these capacities. On the contrary, when diagnosis was late, only 38% of nonambulatory patients and 44% of those with bladder retention improved. Median survival was 5 months, with a 30% probability of survival for 1 year. Length of survival was significantly longer for patients able to walk before and/or after RT. Good agreement between survival and duration of response was found with no evidence of relapse in the irradiated spine. Sickness appeared only in a few cases. Slight esophagitis was more frequent: dysphagia for solid foods in one-third of patients irradiated on the thoracic spine. Late toxicity was never recorded. CONCLUSION: The short-course RT adopted gave a clinical outcome comparable with that resulting from more protracted regimens with only slight side effects. The use of a few large treatment fractions could be explored considering the associated advantages for patients and radiotherapy centers often overloaded by long patient waiting lists.


Assuntos
Compressão da Medula Espinal/radioterapia , Neoplasias da Coluna Vertebral/radioterapia , Neoplasias da Coluna Vertebral/secundário , Adulto , Idoso , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Dosagem Radioterapêutica , Compressão da Medula Espinal/mortalidade , Neoplasias da Coluna Vertebral/mortalidade , Análise de Sobrevida , Resultado do Tratamento
12.
Int J Radiat Oncol Biol Phys ; 23(2): 401-5, 1992.
Artigo em Inglês | MEDLINE | ID: mdl-1587763

RESUMO

Interstitial pneumonia is one of the major causes of morbidity and mortality after bone-marrow transplantation. We here report a series of 58 patients suffering from hematological malignancies who received HLA-matched T-lymphocyte depleted bone-marrow transplants between July 1985 and January 1990. Interstitial pneumonia occurred in 7/58 patients (12%) and was fatal in six. Three different pre-bone-marrow transplantation conditioning regimens were employed. Total body irradiation was delivered according to a hyperfractionated scheme of 12 fractions given three per day 5 hr apart for 4 days. Twenty-three patients received 36 mg/Kg procarbazine, 1275 UL/Kg antithymocite globulin, 14.4 Gy hyperfractionated total body irradiation and 120 mg/Kg cyclophosphamide. Only one patient developed interstitial pneumonia, but two rejected the graft and 10 relapsed. As a consequence, the total hyperfractionated scheme was increased to 15,6 Gy, cyclophosphamide to 200 mg/Kg, antithymocite globulin to 3400 UL/Kg and procarbazine eliminated. There were three cases of interstitial pneumonia, no rejection and four relapses in the 17 patients who received this regimen. In the last 18 patients hyperfractionated total body irradiation was reduced to 15 Gy, cyclophosphamide to 100 mg/Kg, and 10 mg/Kg of the myeloablative agent thiothepa added to enhance the cytoreductive effect without significantly increasing extramedullary toxicity. Three cases of interstitial pneumonia, one relapse but no rejection were recorded. Our results demonstrate that the absence of graft-versus-host disease due to T-cell depletion, and radio-chemotherapy doses and schedules used for the conditioning regimen each contributed to reducing the risk of interstitial pneumonitis. Hyperfractionated total body irradiation therefore, seems to play an important role in lowering the incidence of this complication.


Assuntos
Transplante de Medula Óssea/métodos , Leucemia/cirurgia , Linfoma/cirurgia , Fibrose Pulmonar/etiologia , Irradiação Corporal Total/efeitos adversos , Adolescente , Adulto , Feminino , Antígenos HLA , Humanos , Itália/epidemiologia , Leucemia/epidemiologia , Depleção Linfocítica , Linfoma/epidemiologia , Masculino , Pessoa de Meia-Idade , Fibrose Pulmonar/epidemiologia , Estudos Retrospectivos , Linfócitos T
13.
Radiother Oncol ; 15(3): 227-33, 1989 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-2772251

RESUMO

A non-randomized prospective trial in which radiotherapy (RT) alone played the major role in the treatment of metastatic spinal cord compression (MSCC) is reported. Diagnosis was formulated on myelography and/or myelography plus computed thomography (CT). Of 51 cases treated, 48 are evaluable. The therapy consisted of radiation alone (42 cases) or decompressive laminectomy followed by radiotherapy (6 cases). Surgery was performed when the site of the primary tumor was unknown. The group of patients who received radiotherapy alone (42 of 48 evaluable cases) are analysed in this report. Medium to high doses of steroids were administered to all patients depending on the gravity of the case. Patients with chemo- or hormone-responsive primary tumors also received chemotherapy and/or hormone therapy. Pain relief, assessed by comparing use of narcotics and minor analgesics before and after treatment, was achieved in 54% cases (confidence limits, CL = 38-69%). In 36% (CL = 22-51%) of patients back pain diminished to the point when only milder analgesics were necessary (partial remission). Motor performance, based on patients' ability to walk, improved in 48% cases (CL = 31-65%). The 19 patients who were ambulatory before RT, did not deteriorate after treatment. Sphincter function, evaluated by patient's need for indwelling catheter, improved in 3 of 7 automatic dysfunction cases. It was found that early diagnosis was more important than primary tumor type for predicting a good was found that early diagnosis was more important than primary tumor type for predicting a good prognosis. In fact, all ambulating patients responded to treatment independent of the radiosensitivity of the tumor histology.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Compressão da Medula Espinal/radioterapia , Neoplasias da Medula Espinal/radioterapia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mielografia , Prognóstico , Estudos Prospectivos , Neoplasias da Medula Espinal/secundário
14.
Radiother Oncol ; 22(2): 127-32, 1991 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-1957002

RESUMO

From July 1985 to December 1989, 72 evaluable patients aged between 6 and 51 (median age 27 years) suffering from haematological malignancies received an allogeneic bone marrow transplant (BMT) depleted of T-lymphocytes to reduce the risk of graft-versus-host-disease (GvHD); 57 were matched and 15 mismatched. Three different conditioning regimens were used in an effort to enhance cytoreduction without increase extramedullary toxicity. Mismatched patients were treated with more immunosuppressive regimens. Total body irradiation (TBI) was given in three doses per day, 5 h apart, over 4 days for a total of 12 fractions. The dose to the lungs was 14.4, 15.6 and 9 Gy according to the conditioning regimen. The incidence of interstitial pneumonia (IP) was 12.3% in matched and 46.7% in mismatched patients. Our results seem to indicate that lung toxicity is correlated with the intensity of the conditioning regimen, the stage of disease and, in mismatched patients, with the degree of human leucocyte antigen (HLA) disparity and the poor post-BMT reconstitution, rather than the radiotherapy dose delivered to the lungs. On the contrary, the hyperfractionated scheme adopted, the absence of GvHD and, perhaps, the post-TBI administration of cyclophosphamide all seem to have contributed to the low incidence of IP in our matched patients.


Assuntos
Transplante de Medula Óssea/efeitos adversos , Leucemia/terapia , Linfoma não Hodgkin/terapia , Mieloma Múltiplo/terapia , Fibrose Pulmonar/etiologia , Irradiação Corporal Total/efeitos adversos , Adolescente , Adulto , Criança , Terapia Combinada , Feminino , Reação Enxerto-Hospedeiro , Humanos , Masculino , Pessoa de Meia-Idade , Dosagem Radioterapêutica
15.
Radiother Oncol ; 11(2): 113-8, 1988 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-3281187

RESUMO

Twenty patients suffering from malignant hemopathies (mean age 31.7 years) were given hyperfractionated total body irradiation (TBI) (120 cGy/3 fractions per day: total dose = 1440 cGy/4 days) as conditioning for T-depleted HLA identical allogeneic bone marrow transplantation. At an average of 12 months (range of 4.5-22 months) follow-up there were two cases of early death and two cases (11%) of rejection. There were no cases of acute or chronic graft versus host disease (GVHD) nor cases of interstitial pneumonitis. The average time for durable engraftment was 22 days. Disease-free survival at 12 months was 65%. To improve the results and further reduce the percent of rejection, the authors propose intensifying the immunosuppressive conditioning by increasing the cyclophosphamide dose and that of TBI so that a total dose of 1560 cGy is reached.


Assuntos
Transplante de Medula Óssea , Irradiação Corporal Total , Adulto , Medula Óssea/imunologia , Antígenos HLA/imunologia , Humanos , Leucemia/radioterapia , Contagem de Leucócitos , Depleção Linfocítica , Linfoma não Hodgkin/radioterapia , Mieloma Múltiplo/radioterapia , Linfócitos T/imunologia
16.
Radiother Oncol ; 60(3): 281-8, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11514008

RESUMO

BACKGROUND AND PURPOSE: Hypofractionated radiotherapy is often administered in metastatic spinal cord compression (MSCC), but no studies have been published on the incidence of radiation-induced myelopathy (RIM) in long-term surviving patients. Our report addresses this topic. PATIENTS AND METHODS: Of 465 consecutive MSCC patients submitted to radiotherapy between 1988 and 1997, 13 live patients (seven females, six males, median age 69 years, median follow-up 69 months) surviving for 2 years or more were retrospectively reviewed to evaluate RIM. All patients underwent radiotherapy. Eight patients underwent a short-course regimen of 8 Gy, with 7 days rest, and then another 8 Gy. Five patients underwent a split-course regimen of 5 Gy x 3, 4 days rest, and then 3 Gy x 5. Only one patient also underwent laminectomy. Full neurological examination and magnetic resonance imaging (MRI) were performed. RESULTS: Of 12 patients submitted to radiotherapy alone, 11 were ambulant (eight without support and three with support) with good bladder function. In nine of these 11 patients, MRI was negative; in one case MRI evidenced an in-field relapse 30 months after the end of radiotherapy, and in the other, two new MSCC foci outside the irradiated spine. In the remaining patient RIM was suspected at 18 months after radiotherapy when the patient became paraplegic and cystoplegic, and magnetic resonance images evidenced an ischemic injury in the irradiated area. The only patient treated with surgery plus postoperative radiotherapy worsened and remained paraparetic. Magnetic resonance images showed cord atrophy at the surgical level, explained as an ischemic necrosis due to surgery injury. CONCLUSIONS: On the grounds of our data regarding RIM in long-term surviving MSCC patients, we believe that a hypofractionated radiotherapy regimen can be used for the majority of patients. For a minority of patients, more protracted radiation regimens could be considered.


Assuntos
Lesões por Radiação/diagnóstico , Compressão da Medula Espinal/radioterapia , Doenças da Medula Espinal/etiologia , Neoplasias da Coluna Vertebral/radioterapia , Neoplasias da Coluna Vertebral/secundário , Idoso , Fracionamento da Dose de Radiação , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Exame Neurológico , Estudos Retrospectivos , Medula Espinal/patologia , Compressão da Medula Espinal/etiologia , Doenças da Medula Espinal/diagnóstico
17.
Lung Cancer ; 12 Suppl 1: S71-8, 1995 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-7551936

RESUMO

A poor prognosis for patients with Stage IIIA clinical N2 treated by surgery alone has led clinical researchers to find a new treatment modality to improve the curative potential of surgery. Many Phas II trials have been carried out with induction chemo- or chemo-radiotherapy prior to surgery. From June 1988 to July 1991, 46 patients with non-small cell lung cancer (NSCLC) Stage IIIA clinical N2 entered a Phase II induction-chemotherapy trial. Patients received 2-3 cycles of high-dose cisplatin and etoposide. Forty-five were evaluable for response; the response rate was 82% (37/45: 3 CR, 34 PR). Toxicity was primarily hematologic. Surgical resection was performed in 35 patients; radical resection was possible in 28 patients (62%); three patients were incompletely resected and two patients were only explored. Three deaths were surgery-related. Median survival was 24.5 months with a 2-year survival of 53%. Cisplatin with etoposide is an active and safe induction chemotherapy regimen for NSCLC Stage IIIA N2 with a high response rate. The median survival seems to be prolonged and therefore, randomized trials are needed to compare this approach with other treatment modalities.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Cisplatino/administração & dosagem , Terapia Combinada , Etoposídeo/administração & dosagem , Feminino , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/cirurgia , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Taxa de Sobrevida , Resultado do Tratamento
18.
Cancer Chemother Pharmacol ; 38(6): 561-5, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8823499

RESUMO

From June 1991 to August 1994, 61 patients with stage III unresectable non-small-cell lung cancer (NSCLC; 16 cases of stage IIIA with N2 bulky disease and 45 cases of stage IIIB) were treated with ifosfamide given i.v. at 3 g/m2 on day 1, carboplatin given i.v. at 200 mg/m2 on days 1 and 2, etoposide given i.v. at 120 mg/m2 on days 1-3 (ICE) and recombinant human granulocyte colony-stimulating factor (rhG-CSF) given s.c. at 5 micrograms/kg on days 4-13. Chemotherapy was given every 3 weeks for up to three cycles and, unless the disease progressed, was followed by thoracic radiotherapy on the tumor volume (total dose 60 Gy) and mediastinum (40 Gy). All patients had measurable or evaluable unresectable disease and a performance status (Eastern Cooperative Oncology Group) of 0-1. Only 61% of the enrolled patients received the full program of chemoradiotherapy according to the study design. At the end of sequential chemo-radiotherapeutic treatment, 41% of the patients had an objective response (24 partial responses and 1 complete response), 31% showed no change and 28% had progressive disease. The response rate noted for patients in stage IIIA with N2 bulky disease and that recorded for patients in stage IIIB did not differ significantly. The median time to progression was 5.4 months and the median survival was 8.2 months, with the 1-year survival rate being 31%. Sites of progression were mostly intrathoracic. Haematological toxicity was the main side effect, with grade III-IV thrombocytopenia being reported in 24% of the 165 courses of intensive ICE chemotherapy given. Febrile neutropenia was described in six courses (three patients). Non-haematological toxicities and radiotherapy-related side effects were generally mild and easily manageable. In conclusion, in unresectable stage III NSCLC a short program of moderately intensified ICE chemotherapy with rhG-CSF protection followed by sequential radiotherapy failed to increase the percentage of objective responses and reached a median survival comparable with that previously achieved with standard doses.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/terapia , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Neoplasias Pulmonares/terapia , Radioterapia Adjuvante , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adenocarcinoma/secundário , Adenocarcinoma/terapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/administração & dosagem , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/terapia , Progressão da Doença , Etoposídeo/administração & dosagem , Feminino , Doenças Hematológicas/induzido quimicamente , Humanos , Ifosfamida/administração & dosagem , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Proteínas Recombinantes , Taxa de Sobrevida
19.
Am J Clin Oncol ; 23(1): 89-93, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10683087

RESUMO

From February 1993 to October 1997, 91 consecutive patients with inoperable (stage IIIB-IV) histologically confirmed non-small-cell lung cancer underwent palliative hypofractionated radiotherapy. Recently, the Medical Research Council studies on hypofractionated short-course radiotherapy (8.5 Gy x 2) have reported high control of symptoms caused by thoracic disease without toxicity. Based on these experiences and our previous positive trial on short-course radiotherapy (8 Gy x 2) in metastatic spinal cord compression, a prospective study of short-course palliative radiotherapy in non-small-cell lung cancer was carried out. The regimen was 16 Gy given in two 8-Gy fractions, 1 week apart. Eighty-one patients were evaluable for response to treatment. Forty-eight (59%) patients were 65 years or older. Forty (49%) patients were naive to radiotherapy, whereas 41 (51%) had previous cisplatin-based chemotherapy. All but four stage IV patients (95%) had poor Eastern Cooperative Oncology Group performance status (i.e., 2-3). Clinical palliation was achieved in 62 (77%) patients. Performance status improved in 59 (73%) patients. The median palliation time ranged from 28% to 57% of patient survival. The median survival from the beginning of treatment was 148 days (range, 5-681 days). No difference in overall survival according to stage and previous chemotherapy was observed. Only performance status conditioned survival (performance status 1-2 vs. performance status 3; p = 0.0289). Short-course radiotherapy gave good results in terms of clinical palliation for thoracic symptoms, even in patients with poor performance status and pretreated with chemotherapy. The median palliation time was approximately 50% of patient survival time. Treatment was generally well tolerated-only 4 (5%) patients experienced World Health Organization grade III dysphagia. No late toxicity was recorded. The two-fraction regimen had social and economic advantages compared with the conventional ones.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/radioterapia , Neoplasias Pulmonares/radioterapia , Cuidados Paliativos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Dosagem Radioterapêutica , Análise de Sobrevida
20.
Am J Clin Oncol ; 19(2): 179-83, 1996 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-8610645

RESUMO

A phase II trial was planned to investigate the feasibility of radiotherapy (RT) without steroids in 20 consecutive patients with metastatic spinal cord compression (MSCC), no neurologic deficits, or only radiculopathy, and no massive invasion of the spine at magnetic resonance imaging (MRI) or computed tomography (CT). Aiming at an early diagnosis, MRI or CT was prescribed for all cancer patients with back pain and osteolysis, even when there were no signs of neurologic spinal compression. All patients were given 30 Gy in 10 fractions over 2 weeks with no steroids. Back pain and motor capacity were the parameters adopted to verify response to RT. Sixteen of 20 patients (80%) were able to walk without support, and 14 (70%) had no radiculopathy. Seventeen of 20 cases (85%) achieved relief from back pain. Regarding motor function, all patients (100%) responded to RT because the 16 patients able to walk without support at diagnosis did not deteriorate and the other 4, who needed support, became ambulatory without motor impairment. Median survival time was 14 months. Eight of 20 (40%) treated patients are still alive (14 to 36 months after end of RT), fully ambulatory, and free from relapse in the treated spine. Acute side effects were documented in only 2 patients (10%) and were managed without steroids. The results of this study suggest that RT without steroids is a feasible regimen for MSCC patients with good motor function. Elimination of steroids from the standard treatment for MSCC avoids cortisone side effects above all in those patients with diabetes, hypertension, peptic ulcer, and other steroid-sensitive medical problems.


Assuntos
Compressão da Medula Espinal/etiologia , Compressão da Medula Espinal/radioterapia , Neoplasias da Coluna Vertebral/secundário , Adulto , Idoso , Anti-Inflamatórios/efeitos adversos , Dor nas Costas/etiologia , Dor nas Costas/radioterapia , Cortisona/efeitos adversos , Diabetes Mellitus/fisiopatologia , Intervalo Livre de Doença , Estudos de Viabilidade , Feminino , Humanos , Hipertensão/fisiopatologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Osteólise/etiologia , Osteólise/radioterapia , Úlcera Péptica/fisiopatologia , Doenças do Sistema Nervoso Periférico/etiologia , Doenças do Sistema Nervoso Periférico/radioterapia , Compressão da Medula Espinal/diagnóstico , Doenças da Coluna Vertebral/etiologia , Doenças da Coluna Vertebral/radioterapia , Neoplasias da Coluna Vertebral/radioterapia , Raízes Nervosas Espinhais/patologia , Taxa de Sobrevida , Tomografia Computadorizada por Raios X , Caminhada
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA