RESUMEN
Medulloblastoma is the most common malignant brain tumor in children. Post-surgical craniospinal irradiation (CSI; 30-36 Gy) plus local boost radiation therapy (RT; 54-56 Gy) is a standard treatment for children with medulloblastoma who are over 3 years old, resulting in a 5-year overall survival (OS) rate of 46% to 65% in average-risk patients and 50% in high-risk patients. The addition of chemotherapy has the benefit of reducing complications from radiation and improving the OS rate. Using this approach, the estimated 5-year OS rates for patients with average- and high-risk medulloblastomas treated with different protocols are 65% to 85% and 16% to 70%, respectively. In this study, we determined the outcome of patients with average- and high-risk medulloblastomas treated with reduced dosage CSI and chemotherapy with an oral etoposide-based regimen. The study included 49 patients, with a mean age of 7.7 ± 3.4 years. Twenty-six patients (53%) were classified as average-risk and 23 patients (47%) as high-risk. In the average-risk group, the 5-year progression free survival (PFS) rate was 62.9% ± 10% and the 5-year OS rate was 70.4% ± 9.5%. In the high-risk group the 5-year PFS rate was 48.9% ± 13% and the 5-year OS rate was 49.7% ± 13%. In the average-risk group, patients who received CSI of either 24 Gy (n=20) or 36 Gy (n=9) showed no difference in their 5-year PFS and OS rates. We found that patients who were ≤ 10 years old and patients who were female had a significantly better 5-year PFS rate.
Asunto(s)
Neoplasias Cerebelosas/tratamiento farmacológico , Neoplasias Cerebelosas/radioterapia , Meduloblastoma/tratamiento farmacológico , Meduloblastoma/radioterapia , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Cerebelosas/mortalidad , Quimioterapia Adyuvante , Niño , Preescolar , Terapia Combinada , Irradiación Craneana/métodos , Supervivencia sin Enfermedad , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Meduloblastoma/mortalidad , Radioterapia , Dosificación Radioterapéutica , Resultado del TratamientoRESUMEN
PURPOSE: To evaluate the mammographic findings and role of detection of local recurrence in breast cancer patients, who underwent breast conserving surgery and radiation therapy. DESIGN: Descriptive retrospective study MATERIAL AND METHOD: From 1988 to 1998, 78 women with early breast cancer (stage I, II) were treated with lumpectomy and axillary nodes resection, followed by radiation treatment. Mammographic imagings were taken yearly after complete treatment. Needle biopsy was done for suspected local recurrence on mammographic findings. RESULTS: Duration of follow-up ranged from 3 years to 10 years. Seventy-three of 78 patients (93.6%) had evidence of parenchymal changes on serial annual mammography. Twenty-eight of 73 patients (38.4%) had diffuse dense parenchymal changes. Twenty-four of 73 patients (32.9%) had focal fibrotic changes, and 21 of 73 patients (28.8%) had evidence of parenchymal distortion with a mass like lesion. Skin thickening was found in 54 of 78 patients (69.2%). Calcification was the least change, found in only 2 of 78 patients (2.6%). Nine of 78 patients (11.5%) had mammographic signs of local recurrence. Seven of 9 patients had suspected local recurrence by needle biopsy. Four of seven patients had proven local recurrence on mastectomy, and 3 of 7 patients (42.8%) had false positive on mastectomy. CONCLUSION: Annual mammography in post breast conserving treatment showed beneficial results for detection of recurrent cancer
Asunto(s)
Neoplasias de la Mama/diagnóstico por imagen , Recurrencia Local de Neoplasia/diagnóstico por imagen , Adulto , Biopsia con Aguja , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Terapia Combinada , Femenino , Humanos , Mamografía , Mastectomía Segmentaria , Persona de Mediana Edad , Estudios RetrospectivosRESUMEN
PURPOSE: This is a prospective, Phase III multicenter randomized trial to assess the effectiveness of concurrent intravenous mitomycin C, oral 5-fluorouracil (5-FU), and radiotherapy (RT) in locally advanced carcinoma of the cervix. METHODS AND MATERIALS: Between January 1988 and November 1994, 926 patients with locally advanced carcinoma of the cervix, FIGO Stage IIB-IVA, were entered into this study. The patients were randomized into four arms, as follows: Arm 1: conventional RT; Arm 2: conventional RT and adjuvant chemotherapy; Arm 3: conventional RT plus concurrent chemotherapy; Arm 4: conventional RT plus concurrent chemotherapy and adjuvant chemotherapy. Concurrent chemotherapy consisting of intravenous mitomycin C at 10 mg/m(2) was given on Days 1 and 29, and oral 5-FU at 300 mg/day was administered on Days 1-14 and 29-42 during RT. Adjuvant chemotherapy of 5-FU orally at 200 mg/day was given for three courses of 4 weeks, with a 2-week rest every 6 weeks. Six centers participated in the trial. RESULTS: The median follow-up time was 89 months. Acute side effects were generally higher in concurrent arms, but most of the patients tolerated the treatment well. Bone marrow toxicity was also higher in concurrent arms. The 5-year actuarial disease-free survival (DFS) was 48.2%, 54.1%, 64.5%, and 59.7% for arms 1, 2, 3, and 4, respectively. The pattern of failure revealed a significant increase in locoregional recurrence in the nonconcurrent chemoradiotherapy arm. The local recurrence was 25.5%, 20.6%, 14.3%, and 17.6% for arms 1, 2, 3, and 4, respectively. The metastatic rates were not significantly different in all four arms. At the time of analysis, there were no increases in late side effects, especially in gastrointestinal and genitourinary systems. CONCLUSIONS: Concurrent chemotherapy, mitomycin C, and 5-FU together with conventional RT showed an improved DFS rate when compared with conventional RT alone in patients with locally advanced carcinoma of the cervix.