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1.
J Clin Oncol ; 16(5): 1729-35, 1998 May.
Artículo en Inglés | MEDLINE | ID: mdl-9586885

RESUMEN

PURPOSE: To describe the spectrum of malignancies in human immunodeficiency virus (HIV)-infected children and the clinical outcome of patients with these tumors. METHODS: We retrospectively surveyed the Children's Cancer Group (CCG) and the National Cancer Institute (NCI) for cases of cancer that occurred between July 1982 and February 1997 in children who were HIV seropositive before or at the time of cancer diagnosis. We used Kaplan-Meier survivorship curves, hazard function estimates, and Cox proportional hazards models to evaluate survival. RESULTS: Sixty-four children (39 boys, 25 girls) with 65 tumors were reported. Thirty-seven children (58%) acquired HIV infection vertically (median age at cancer diagnosis, 4.3 years); 22 children (34%) acquired HIV through transfusion of blood or blood products (median age at cancer diagnosis, 13.4 years). Forty-two children (65%) had non-Hodgkin's lymphoma (NHL). Eleven children (17%) had leiomyosarcomas (or leiomyomas), which are otherwise exceptionally rare in children. Other malignancies included acute leukemia (five children), Kaposi's sarcoma (KS; three children), Hodgkin's disease (two children), vaginal carcinoma in situ (one child), and tracheal neuroendocrine carcinoma (one child). Median survival after NHL diagnosis was 6 months (range, 1 day to 89 months) and after leiomyosarcoma was 12 months (range, 10 days to 19 months). The average monthly death rate after NHL diagnosis was 12% in the first 6 months, which decreased to about 2% thereafter. In contrast, the monthly death rate after leiomyosarcoma diagnosis increased from 5% in the first 6 months to about 20% thereafter. CONCLUSION: After NHL, leiomyosarcoma is the second leading cancer in children with HIV infection. Both cancers have high mortality rates; improved outcome for NHL, in particular, may depend on earlier diagnosis and therapy.


Asunto(s)
Infecciones por VIH/complicaciones , Neoplasias/complicaciones , Niño , Preescolar , Femenino , Humanos , Leiomiosarcoma/complicaciones , Linfoma Relacionado con SIDA/patología , Masculino , Neoplasias/mortalidad , Neoplasias/terapia , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia
2.
J Clin Oncol ; 15(2): 547-56, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9053476

RESUMEN

PURPOSE: To determine psychologic outcome, with the focus on emotional or mood state, of young adult survivors of childhood acute lymphoblastic leukemia (ALL) compared with sibling controls and to identify vulnerable subgroups at highest risk for negative mood. PATIENTS AND METHODS: Adult survivors (n = 580), aged > or = 18 years, who were treated before age 20 years on Children's Cancer Group (CCG) protocols for ALL and 396 sibling controls were administered a structured telephone interview and the Profile of Moods State (POMS), a standardized measure of affective state. RESULTS: Survivors had higher total mood scores (which indicates greater negative mood) than sibling controls (P<.01) and reported more tension (P< .01), depression (P<.01), anger (P<.01), and confusion (P<.01), but not more fatigue or less vigor. Female, minority, and unemployed survivors reported the highest total mood disturbance. Overall, survivors were more likely to be unemployed (P<.05) or working less than half-time (P<.01) compared with controls. CONCLUSION: This large, sibling-controlled, multisite study of young adult survivors of childhood ALL treated on CCG protocols after 1970 found significant increased negative mood in survivors, not accounted for by reported energy level differences, which suggests that these emotional effects are not likely the result of current illness. Survivors are less likely to be fully employed. Female, minority, and unemployed survivors are at greatest risk for emotional sequelae, a finding that indicates the need for targeted, preventive intervention.


Asunto(s)
Afecto , Leucemia-Linfoma Linfoblástico de Células Precursoras/psicología , Adulto , Ira , Ansiedad , Estudios de Casos y Controles , Confusión , Depresión , Empleo , Fatiga , Femenino , Humanos , Masculino , Estado Civil , National Institutes of Health (U.S.) , Núcleo Familiar/psicología , Leucemia-Linfoma Linfoblástico de Células Precursoras/etnología , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Religión , Encuestas y Cuestionarios , Resultado del Tratamiento , Estados Unidos
3.
J Clin Oncol ; 16(9): 3037-43, 1998 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-9738573

RESUMEN

PURPOSE: The Children's Cancer Group conducted a phase I trial of temozolomide stratified by prior craniospinal irradiation (CSI). PATIENTS AND METHODS: Children and adolescents with recurrent or progressive cancer were enrolled. Temozolomide was administered orally daily for 5 days, with subsequent courses administered every 21 to 28 days after full hematologic recovery. Dose levels tested included 100, 150, 180, 215, 245, and 260 mg/m2 daily. RESULTS: Twenty-seven patients on the non-CSI stratum were assessable for hematologic toxicity. During the first three dose levels (100, 150, and 180 mg/m2 daily), only grades 1 and 2 hematologic toxicity occurred. One patient at 215 mg/m2 daily had grade 3 hematologic toxicity. Three of eight patients (38%) treated at 245 to 260 mg/m2 daily had dose-limiting toxicity (DLT), which included both neutropenia and thrombocytopenia. Twenty-two patients on the CSI stratum were assessable for hematologic toxicity. Hematologic DLT occurred in one of six patients (17%) at 100 mg/m2 daily and in two of four patients (50%) at 215 mg/m2 daily. No nonhematologic DLT occurred; nausea and vomiting occurred in more than half of the patients. After two courses of temozolomide, 10 patients had stable disease (SD), and three patients had a partial response (PR), one of whom subsequently had a complete response (CR) that persists through 24 months of follow-up. CONCLUSION: The maximum-tolerated dose (MTD) of temozolomide for children and adolescents without prior CSI is 215 mg/m2 daily and for those with prior CSI is 180 mg/m2 daily for 5 days, with subsequent courses that begin on day 28. Temozolomide is well tolerated and should undergo phase II testing in children and adolescents.


Asunto(s)
Antineoplásicos Alquilantes/uso terapéutico , Dacarbazina/análogos & derivados , Recurrencia Local de Neoplasia/tratamiento farmacológico , Neoplasias/tratamiento farmacológico , Adolescente , Adulto , Antineoplásicos Alquilantes/efectos adversos , Niño , Preescolar , Dacarbazina/efectos adversos , Dacarbazina/uso terapéutico , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Temozolomida
4.
J Clin Oncol ; 11(5): 850-6, 1993 May.
Artículo en Inglés | MEDLINE | ID: mdl-8487049

RESUMEN

PURPOSE: This study investigates the response rate to and toxicity of carboplatin and vincristine in children with recurrent low-grade gliomas (LGGs) or patients younger than 60 months with newly diagnosed LGGs. PATIENTS AND METHODS: Twenty-three children with recurrent and 37 children with newly diagnosed LGGs were treated with a 10-week induction cycle of carboplatin and vincristine, followed by maintenance treatment with the same drugs. Patients were evaluated for response to treatment and toxicity. RESULTS: Twelve of 23 (52% +/- 10%; 95% confidence interval [CI], 0.32 to 0.72) assessable children with recurrent disease had an objective response to treatment, which included a greater than 50% reduction in tumor size in seven of 23 (30% +/- 10%; 95% CI, 0.10 to 0.50). Twenty-three of 37 (62% +/- .08; 95% CI, 0.46 to 0.78) of newly diagnosed patients had an objective response, 16 of 37 (43% +/- 0.08%; 95% CI, 0.27 to 0.59) with greater than 50% reduction in tumor size. The majority of those with an objective response had diencephalic tumors (n = 29), but children with thalamic (n = 2), cortical (n = 1), and brain stem (n = 2) LGGs also responded to treatment. Of the 35 patients with objective response to treatment, the maximum response was seen in 25 after completion of induction and in the remaining 10 after two to six cycles of maintenance treatment. Forty-nine of 53 (92% +/- .04%) patients who were stable or improved after induction remain without progressive disease (PD). Hematologic toxicity was common, but resulted in cessation of therapy in only one patient. Six children have been removed from the study because of allergic reactions, which were considered to be carboplatin-associated. CONCLUSION: Carboplatin and vincristine have activity in children with recurrent and newly diagnosed progressive LGGs. Objective responses to treatment after chemotherapy can be seen. This drug regimen is relatively well tolerated, and further studies are indicated to define the role of this combination of drugs in children with newly diagnosed LGGs.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Glioma/tratamiento farmacológico , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carboplatino/administración & dosificación , Niño , Preescolar , Glioma/patología , Humanos , Lactante , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/patología , Factores de Tiempo , Vincristina/administración & dosificación
5.
J Clin Oncol ; 17(7): 2127-36, 1999 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-10561268

RESUMEN

PURPOSE: Medulloblastoma is the most common malignant brain tumor of childhood. After treatment with surgery and radiation therapy, approximately 60% of children with medulloblastoma are alive and free of progressive disease 5 years after diagnosis, but many have significant neurocognitive sequelae. This study was undertaken to determine the feasibility and efficacy of treating children with nondisseminated medulloblastoma with reduced-dose craniospinal radiotherapy plus adjuvant chemotherapy. PATIENTS AND METHODS: Over a 3-year period, 65 children between 3 and 10 years of age with nondisseminated medulloblastoma were treated with postoperative, reduced-dose craniospinal radiation therapy (23.4 Gy) and 55.8 Gy of local radiation therapy. Adjuvant vincristine chemotherapy was administered during radiotherapy, and lomustine, vincristine, and cisplatin chemotherapy was administered during and after radiation. RESULTS: Progression-free survival was 86% +/- 4% at 3 years and 79% +/- 7% at 5 years. Sites of relapse for the 14 patients who developed progressive disease included the local tumor site alone in two patients, local tumor site and disseminated disease in nine, and nonprimary sites in three. Brainstem involvement did not adversely affect outcome. Therapy was relatively well tolerated; however, the dose of cisplatin had to be modified in more than 50% of patients before the completion of treatment. One child died of pneumonitis and sepsis during treatment. CONCLUSION: These overall survival rates compare favorably to those obtained in studies using full-dose radiation therapy alone or radiation therapy plus chemotherapy. The results suggest that reduced-dose craniospinal radiation therapy and adjuvant chemotherapy during and after radiation is a feasible approach for children with nondisseminated medulloblastoma.


Asunto(s)
Neoplasias Cerebelosas/radioterapia , Irradiación Craneana/métodos , Meduloblastoma/radioterapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Cerebelosas/tratamiento farmacológico , Neoplasias Cerebelosas/mortalidad , Neoplasias Cerebelosas/patología , Quimioterapia Adyuvante , Niño , Preescolar , Cisplatino/administración & dosificación , Irradiación Craneana/efectos adversos , Supervivencia sin Enfermedad , Humanos , Lomustina/administración & dosificación , Meduloblastoma/tratamiento farmacológico , Meduloblastoma/mortalidad , Meduloblastoma/patología , Estadificación de Neoplasias , Dosis de Radiación , Tasa de Supervivencia , Estados Unidos/epidemiología , Vincristina/administración & dosificación
6.
Neurology ; 45(10): 1837-40, 1995 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-7477978

RESUMEN

Neurologic sequelae may occur months to years after cranial irradiation. The site of primary damage is probably the vascular endothelium. Over a 2.8-year period, four children with brain tumors, a mean of 11 years of age at diagnosis (range, 6.5 to 15.5 years), had new onset of severe intermittent unilateral headaches associated with nausea, episodic visual loss, hemiparesis, aphasia, or hemisensory loss. The headaches lasted 2 to 24 hours. All patients had previously received whole-brain (2,400 to 3,600 cGy) and additional local boost (1,800 to 3,100 cGy) cranial irradiation, as well as cisplatin-, lomustine-, and vincristine-containing chemotherapy regimens. Symptoms began 1.2 to 2.8 years after the diagnosis, when all had stable disease and were off treatment. MRI studies were unchanged, and CSF cytology, EEGs, echocardiograms, and magnetic resonance angiograms were normal in all. Cerebral angiograms, performed in three children, were normal but led to severe headaches and neurologic deficits (hemiparesis in one and visual loss in two) that resolved after 24 to 48 hours. Response to antimigraine and antiplatelet medications was variable. We conclude that (1) "complicated migraine-like episodes" may occur in children after cranial irradiation and chemotherapy as a sequela of therapy; (2) these headaches may not be the harbinger of impending strokes, severe intracranial vasculitis, or tumor recurrence; and (3) while cerebral angiography may be useful in differential diagnosis, it may cause transient worsening of symptoms.


Asunto(s)
Antineoplásicos/efectos adversos , Neoplasias Encefálicas/terapia , Irradiación Craneana/efectos adversos , Trastornos Migrañosos/etiología , Adolescente , Niño , Femenino , Humanos , Masculino , Factores de Tiempo
7.
Hematol Oncol Clin North Am ; 12(2): 379-84, 1998 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-9561907

RESUMEN

Little progress has been made in finding the causes of LCH. Epidemiologic studies are difficult because of the rarity of this disease. Although several associations have been demonstrated in case-control studies, particularly that with thyroid disease, no causal relationships have been documented. Additional case-control studies may uncover the to-date missing lead that may prove fruitful for epidemiologic investigation.


Asunto(s)
Histiocitosis de Células de Langerhans/epidemiología , Niño , Preescolar , Humanos , Lactante
8.
Hematol Oncol Clin North Am ; 12(2): 369-78, 1998 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-9561906

RESUMEN

The frequency of Langerhans cell histiocytosis (LCH) and a malignant neoplasm occurring in the same individual appears to be greater than previously recognized. To define the occurrence and the pattern of these events, a Study Group of the Histiocyte Society initiated a registry of patients in whom this association occurred synchronously or asynchronously. Evaluation of 54 patients detected two patterns of associations between LCH and other disorders. First, it is possible that therapy of LCH promotes a secondary malignancy. Second, it is possible that a genetic predisposition, with or without the immunosuppression associated therapy for the malignancy, plays a role in the development and expression of disseminated LCH. Data collected by the LCH-Malignancy Study Group may provide insights into the etiology and pathophysiology of LCH.


Asunto(s)
Histiocitosis de Células de Langerhans/complicaciones , Leucemia/complicaciones , Linfoma/complicaciones , Neoplasias/complicaciones , Adolescente , Niño , Preescolar , Femenino , Histiocitosis de Células de Langerhans/fisiopatología , Humanos , Leucemia/fisiopatología , Linfoma/fisiopatología , Masculino , Neoplasias/fisiopatología , Encuestas y Cuestionarios
9.
Cancer Treat Res ; 62: 45-8, 1993.
Artículo en Inglés | MEDLINE | ID: mdl-8096758

RESUMEN

Adult survivors of childhood or adolescent osteosarcoma require ongoing medical follow-up in order to monitor for potentially life-threatening consequences of therapy, including second cancers and anthracycline cardiotoxicity. In the future, additional knowledge of tumor biology will likely change staging methods and allow intensive therapy to be given only to those most likely to benefit from it [25]; those with less risk of relapse may require less toxic therapy and still achieve acceptable levels of survival.


Asunto(s)
Neoplasias Óseas/terapia , Osteosarcoma/terapia , Adolescente , Adulto , Amputación Quirúrgica/efectos adversos , Neoplasias Óseas/mortalidad , Cardiomiopatías/inducido químicamente , Niño , Preescolar , Estudios de Cohortes , Doxorrubicina/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Lactante , Infertilidad/inducido químicamente , Recurrencia Local de Neoplasia , Neoplasias Primarias Secundarias/epidemiología , Neoplasias Primarias Secundarias/etiología , Osteosarcoma/mortalidad , Embarazo , Resultado del Embarazo , Factores de Tiempo
10.
J Neurosurg ; 81(5): 690-8, 1994 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-7931615

RESUMEN

It has previously been reported in a single-institution trial that progression-free survival of children with medulloblastoma treated with radiotherapy and 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea (CCNU), cisplatin, and vincristine chemotherapy during and after radiotherapy was better than the outcome in children treated with radiotherapy alone. To better characterize long-term outcome and duration of disease control, this treatment approach was used for 10 years and expanded to three institutions. Sixty-three children with posterior fossa medulloblastomas were treated with craniospinal local-boost radiotherapy and adjuvant chemotherapy with vincristine weekly during radiotherapy followed by eight 6-week cycles of cisplatin, CCNU, and vincristine. To be eligible for study entry, patients had to be older than 18 months of age at diagnosis and have a subtotal resection, evidence of metastatic disease, and/or brainstem involvement. Patients younger than 5 years of age and without these poor risk factors who received reduced-dose craniospinal radiotherapy (2400 cGy) were also eligible for entry into the study. Sixty-three of 66 eligible patients (95%) were entered and placed on this treatment regimen. Forty-two patients had brainstem involvement, 15 had metastatic disease at the time of diagnosis, and 19 had received a subtotal resection. Progression-free survival for the entire group at 5 years is 85% +/- 6%. Three children have succumbed to a second malignancy, and overall 5-year event-free survival is 83% +/- 6%. Progression-free survival was not adversely affected by younger age at diagnosis, brainstem involvement, or subtotal resection. Five-year actuarial progression-free survival for patients who received reduced-dose radiotherapy was similar to that for patients receiving conventional-dose radiotherapy. Patients with metastatic disease at the time of diagnosis had a 5-year progression-free survival rate of 67% +/- 15%, as compared to 90% +/- 6% for those patients with localized disease at the time of diagnosis (p = 0.037). The authors conclude that overall progression-free survival remains excellent for children with posterior fossa medulloblastomas treated with this drug regimen. Chemotherapy has a definite role in the management of children with medulloblastoma. Further studies are indicated to define which subpopulations of children with medulloblastoma benefit from chemotherapy and what regimens are optimum in increasing disease control and, possibly, in reducing the amount of radiotherapy required.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Cerebelosas/tratamiento farmacológico , Neoplasias Cerebelosas/radioterapia , Cisplatino/administración & dosificación , Lomustina/administración & dosificación , Meduloblastoma/tratamiento farmacológico , Meduloblastoma/radioterapia , Vincristina/administración & dosificación , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Cerebelosas/cirugía , Quimioterapia Adyuvante , Niño , Preescolar , Estudios de Cohortes , Terapia Combinada , Irradiación Craneana , Supervivencia sin Enfermedad , Humanos , Lactante , Meduloblastoma/cirugía , Invasividad Neoplásica , Siembra Neoplásica , Neoplasia Residual/patología , Dosificación Radioterapéutica , Tasa de Supervivencia , Resultado del Tratamiento
11.
J Neurosurg ; 80(6): 1004-10, 1994 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-8189255

RESUMEN

The reported success of treatment for children with medulloblastoma must be balanced against the effect that treatment has on the quality of life of long-term survivors. The outcome of long-term survivors reported in previous studies has been conflicting. The authors evaluate the mental and behavioral skills of a group of medulloblastoma survivors from their institution, all of whom had survived for more than 5 years postdiagnosis. A review of the institutional records yielded 32 patients. Twenty-three families were interviewed by telephone and, of these, 13 subjects came to the hospital for detailed neuropsychological and neurological evaluations. Intelligence quotient (IQ) was less than 90 for all participants tested, and patients diagnosed before the age of 3 years had lower IQ scores on average than those diagnosed later. Mean IQ and achievement test scores in reading, spelling, and mathematics were all higher in survivors who had undergone shunting. Achievement test results were often not in accord with intellectual potential, and individual intellectual skills varied widely. Perceptual-motor task performance was below average in more than 50% of the participants, but motor dexterity was more severely affected than perception. Problems in learning and a delay in both physical growth and development were seen in a majority of participants. This study directs attention to the serious difficulties faced by long-term survivors of medulloblastoma and their families, and underscores the importance of routine neuropsychological testing. Moreover, the study provides further impetus to seek alternatives to irradiation in the treatment of malignant brain tumors.


Asunto(s)
Neoplasias Cerebelosas/rehabilitación , Meduloblastoma/rehabilitación , Calidad de Vida , Adolescente , Neoplasias Cerebelosas/mortalidad , Neoplasias Cerebelosas/terapia , Niño , Preescolar , Terapia Combinada , Escolaridad , Femenino , Humanos , Lactante , Inteligencia , Masculino , Meduloblastoma/mortalidad , Meduloblastoma/terapia , Examen Neurológico , Pruebas Neuropsicológicas , Pronóstico , Análisis de Supervivencia
12.
J Neurosurg ; 86(5): 747-54, 1997 May.
Artículo en Inglés | MEDLINE | ID: mdl-9126887

RESUMEN

The optimum treatment of nonresectable low-grade gliomas of childhood remains undecided. There has been increased interest in the use of chemotherapy for young children, but little information concerning the long-term efficacy of such treatment. Seventy-eight children with a mean age of 3 years (range 3 months-16 years) who had newly diagnosed, progressive low-grade gliomas were treated with combined carboplatin and vincristine chemotherapy. The patients were followed for a median of 30 months from diagnosis, with 31 patients followed for more than 3 years. Fifty-eight children had diencephalic tumors, 12 had brainstem gliomas, and three had diffuse leptomeningeal gliomas. Forty-four (56%) of 78 patients showed an objective response to treatment. Progression-free survival rates were 75 +/- 6% at 2 years and 68 +/- 7% at 3 years. There was no statistical difference in progression-free survival rates between children with neurofibromatosis Type 1 and those without the disease (2-year, progression-free survival 79 +/- 11% vs. 75 +/- 6%, respectively). The histological subtype of the tumor, its location, and its maximum response to chemotherapy did not have an impact on the duration of disease control. The only significant prognostic factor was age: children 5 years old or younger at the time of treatment had a 3-year progression-free survival rate of 74 +/- 7% compared with a rate of 39 +/- 21% in older children (p < 0.01). Treatment with carboplatin and vincristine is effective, especially in younger children, in controlling newly diagnosed progressive low-grade gliomas.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Glioma/tratamiento farmacológico , Adolescente , Neoplasias Encefálicas/patología , Carboplatino/administración & dosificación , Carboplatino/efectos adversos , Carboplatino/uso terapéutico , Niño , Preescolar , Progresión de la Enfermedad , Glioma/patología , Humanos , Lactante , Análisis de Supervivencia , Resultado del Tratamiento , Vincristina/administración & dosificación , Vincristina/efectos adversos , Vincristina/uso terapéutico
13.
Neurosurg Clin N Am ; 3(4): 863-79, 1992 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-1392581

RESUMEN

Brainstem gliomas, a relatively common form of childhood brain tumor, are highly resistant to therapy. With computed tomography and magnetic resonance imaging, these lesions can be diagnosed with a high degree of reliability. The indications for surgery are unclear. Focal lesions may be amenable to partial resections. Stereotactic approaches can be used for diffuse lesions, but it has not been shown that the information obtained changes the approach to treatment or outcome. Higher dose radiotherapy has been recently used but has not improved survival for most patients. Patients with brainstem gliomas must be stratified into risk groups, and new means of treatment are needed.


Asunto(s)
Neoplasias Encefálicas/terapia , Tronco Encefálico , Glioma/terapia , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/patología , Tronco Encefálico/patología , Quimioterapia Adyuvante , Niño , Terapia Combinada , Irradiación Craneana , Estudios de Seguimiento , Glioma/diagnóstico , Glioma/patología , Humanos , Imagen por Resonancia Magnética , Técnicas Estereotáxicas , Tasa de Supervivencia , Tomografía Computarizada por Rayos X
14.
J Health Psychol ; 3(1): 23-38, 1998 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22021340

RESUMEN

To determine the pathways between treatment intensity (age at diagnosis, dosage of chemotherapy [intrathecal methotrexate; IT-MTX] and cranial radiation [CRT]) and various psychosocial outcomes, review of medical records and structured interviews were carried out in 510 adult survivors of childhood leukemia. Structural equation modeling revealed that higher treatment intensity during childhood (indicated by treatment with high-dose CRT, low-dose IT-MTX, and adjusted by younger age at diagnosis) predicted more health- compromising behaviors as adults through lower educational achievement. Additionally, higher childhood treatment intensity predicted current negative mood both directly and via changes in perceived limitations. The present study's findings suggest that higher treatment intensity during childhood may serve as a risk factor for adult survivors' health-compromising behaviors through neuropsychological deficits that arise from cancer treatment.

15.
Am J Med Genet A ; 134(4): 399-403, 2005 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-15759260

RESUMEN

Medulloblastoma is the most common malignant central nervous system tumor of childhood and can occur sporadically or in association with inherited cancer susceptibility syndromes such as the nevoid basal cell carcinoma syndrome (NBCCS). To determine whether an association existed between the risk of developing medulloblastoma and undiagnosed syndromes, we retrospectively reviewed clinical data on 33 patients with medulloblastoma from a single institution and compared them with their unaffected relatives (n = 46). Six patients had tumors showing desmoplastic histology. Two of the six met diagnostic criteria for NBCCS. One NBCCS patient had a missense mutation of patched-1 (PTCH1); the other had no identifiable PTCH1 mutation. Two patients with isolated desmoplastic medulloblastoma had an insertion and splice site mutation, respectively, in suppressor of fused (SUFU). All patients with nondesmoplastic medulloblastoma histology received molecular testing for SUFU. None of these patients had an identifiable mutation in PTCH1 or SUFU. We performed a clinical evaluation for Greig cephalopolysyndactyly syndrome (GCPS) in four medulloblastoma families, who exhibited macrocephaly as the only finding consistent with the diagnosis of GCPS. Molecular analysis of GLI3 in these four families was negative. There was a paucity of clinical findings among the majority of medulloblastoma patients in this study group to suggest a definable cancer genetic syndrome. We conclude that clinically recognizable syndromes are uncommon among patients with medulloblastoma, however, PTCH1 and SUFU mutations are present at a low but significant frequency.


Asunto(s)
Neoplasias Cerebelosas/patología , Meduloblastoma/patología , Adolescente , Adulto , Neoplasias Cerebelosas/genética , Niño , Preescolar , ADN/química , ADN/genética , Análisis Mutacional de ADN , Proteínas de Unión al ADN/genética , Femenino , Humanos , Lactante , Factores de Transcripción de Tipo Kruppel , Masculino , Meduloblastoma/genética , Mutación , Proteínas del Tejido Nervioso/genética , Receptores Patched , Receptor Patched-1 , Linaje , Receptores de Superficie Celular/genética , Proteínas Represoras/genética , Estudios Retrospectivos , Factores de Transcripción/genética , Proteína Gli3 con Dedos de Zinc
16.
Cancer ; 71(10 Suppl): 3392-9, 1993 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-8490888

RESUMEN

Because most children and adolescents with cancer now survive, issues regarding the late effects of therapy, including fertility and the health of offspring, are increasingly important. This article summarizes the literature regarding issues related to fertility in survivors of cancer, including actual fertility, gonadal function, menarche, menopause, and birth defects and cancer in the offspring. Radiation therapy to the gonads and alkylating agent chemotherapy, either alone or in combination, impair actual fertility in survivors of childhood and adolescent cancer. Males are particularly affected by alkylating agents, and females who have had radiation therapy to the abdomen have decreased fertility and an increased risk of adverse pregnancy outcomes. Consequently, these women should be followed up as high-risk obstetrical patients. Offspring of survivors of cancer appear to have little risk of childhood cancer or birth defects. Thus, in most instances, survivors of cancer should not be discouraged from having children and can expect a good outcome of pregnancy. This article concludes with advice to survivors and clinicians who counsel survivors.


Asunto(s)
Fertilidad/efectos de los fármacos , Fertilidad/efectos de la radiación , Neoplasias/terapia , Embarazo/efectos de los fármacos , Embarazo/efectos de la radiación , Adolescente , Alquilantes/efectos adversos , Amenorrea/etiología , Niño , Familia , Femenino , Humanos , Masculino , Menarquia/efectos de la radiación , Menopausia , Neoplasias/genética , Neoplasias/mortalidad , Educación del Paciente como Asunto , Resultado del Embarazo , Radioterapia/efectos adversos
17.
Med Pediatr Oncol ; 20(1): 6-12, 1992.
Artículo en Inglés | MEDLINE | ID: mdl-1727214

RESUMEN

To study the late consequences of primary bone cancer, we interviewed 82 osteosarcoma and 29 Ewing's sarcoma survivors regarding their health, fertility and offspring, employment, annual income, and activities of daily living. All subjects had been diagnosed before age 20 (mean age, 14.6 years), had survived at least 5 years from diagnosis, and were at least 21 years of age. On average, they were 32.5 years of age at interview. As controls, 151 siblings were interviewed. During the follow-up period, eight survivors had died, and eight survivors had been diagnosed with a second malignancy (7.2%; P = .002). No other health condition distinguished survivors from controls. Although the survivors were more likely than controls to have some difficulty climbing stairs and to have had employment disability, employment status and annual income at follow-up were similar. Deficits in marriage and fertility were not significant. Adult survivors of primary bone tumors diagnosed during childhood or adolescence are at high risk for second malignancies and premature death, making continued medical follow-up of utmost importance. Despite the physical impairment following limb amputation for many, the majority of outcomes we measured did not differ from controls, suggesting few adverse psychosocial outcomes in this group of cancer survivors.


Asunto(s)
Neoplasias Primarias Secundarias , Osteosarcoma/terapia , Sarcoma de Ewing/terapia , Resultado del Tratamiento , Adulto , Estudios de Cohortes , Empleo , Femenino , Fertilidad , Humanos , Masculino , Matrimonio , Persona de Mediana Edad , Osteosarcoma/mortalidad , Recurrencia , Estudios Retrospectivos , Sarcoma de Ewing/mortalidad , Clase Social
18.
Cancer ; 73(12): 3094-102, 1994 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-8200008

RESUMEN

BACKGROUND: Therapeutic advances have extended survival for most children and adolescents with cancer beyond 5 years from diagnosis. However, excess mortality continues beyond 5 years, and a significant portion results from causes other than the primary cancer. Risk factors for these deaths are not currently known. Thus, the authors studied mortality in a cohort of adult survivors of childhood and adolescent cancer to determine whether survivor characteristics were associated with increased relative risk of death from other causes. METHODS: Using 3255 siblings as control subjects, the authors studied survival in a retrospective cohort study of 2319 adults who were at least 5-year survivors of cancer diagnosed before reaching 20 years of age and between 1945 and 1974 (the NCI Five Center Study). Follow-up occurred between 1980 and 1983 at a mean survivor age of 32 years (range, 21-55 years). RESULTS: Between cohort entry and follow-up, 292 (13%) survivors and 50 (2%) controls died. One-third of the deaths in survivors were from causes other than the primary malignancy. Compared with control subjects, between ages 21 and 40 years, survivors had a more than threefold risk of death from other causes. The relative risk (RR) for death from other causes was greatest for survivors treated with radiation and alkylating agents (RR = 6.1; 95% confidence interval [CI], 3.0-12.4) and for those treated with radiation alone (RR = 3.8; 95% CI, 2.3-6.2; Cox regression analysis containing terms for treatment and cancer diagnosis). CONCLUSIONS: Adult survivors of childhood and adolescent cancer had a higher death rate than their siblings, even after removing the effect of primary cancer as the direct cause. Moreover, death from other causes was most strongly associated with increasing intensity of therapy, and this excess risk did not diminish with increasing age and duration of cancer survival. Because contemporary anticancer therapy is, in general, even more intensive than that received by the survivors described in this study, medical surveillance of cancer survivors is increasingly important to diagnose and treat potentially life-threatening complications that may occur decades after therapy has ceased.


Asunto(s)
Mortalidad , Neoplasias , Adolescente , Adulto , Causas de Muerte , Niño , Preescolar , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Lactante , Masculino , Persona de Mediana Edad , Neoplasias/complicaciones , Neoplasias/mortalidad , Neoplasias Primarias Secundarias/mortalidad , Factores de Riesgo , Factores de Tiempo
19.
Pediatr Neurosurg ; 17(1): 37-43, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1811712

RESUMEN

Brainstem glioma is a malignant childhood brain tumor for which the 'best' treatment approach has not been defined. Many issues concerning the management of these lesions require clarification, including the following. (1) Can patients be reliably separated into risk groups? (2) Is surgery indicated; if so, for which patients? (3) How effective are new radiotherapy regimens? (4) What other forms of treatment are available? This article will attempt to address these management issues.


Asunto(s)
Neoplasias Encefálicas/cirugía , Tronco Encefálico , Glioma/cirugía , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/radioterapia , Tronco Encefálico/efectos de los fármacos , Tronco Encefálico/efectos de la radiación , Tronco Encefálico/cirugía , Niño , Terapia Combinada , Irradiación Craneana , Glioma/tratamiento farmacológico , Glioma/radioterapia , Humanos , Pronóstico , Radioterapia de Alta Energía
20.
Cancer ; 78(4): 887-91, 1996 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-8756386

RESUMEN

BACKGROUND: The association between Wilms' tumor (WT) and genitourinary (GU) anomalies has long been appreciated; however, associated GU anomalies have been described almost exclusively in males. METHODS: To investigate whether females with WT also have an increased prevalence of GU anomalies, the authors evaluated the uterine anatomy of 24 WT survivors using magnetic resonance imaging and ultrasonography. RESULTS: Two of 24 female survivors (8%) had anomalies. One had a septate uterus, and a limited molecular analysis of her constitutional DNA revealed no mutations or deletions of the tumor suppressor gene WT1. Another survivor with the WAGR syndrome (WT, aniridia, GU anomalies, and retardation), with the characteristic 11p13 deletion including WT1, had a uterine anomaly (hypoplastic vs. unicornuate). CONCLUSIONS: Because uterine malformations are rare in the general population, this finding suggests an association between WT and uterine malformations and also may partially explain the fertility deficit previously demonstrated in adult female WT survivors. Pelvic ultrasonography in adult female WT survivors can alert survivors and clinicians to possible fertility problems that may lead to problem pregnancies and adverse pregnancy outcomes.


Asunto(s)
Útero/anomalías , Tumor de Wilms/complicaciones , Adolescente , Adulto , Niño , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética , Ultrasonografía , Útero/anatomía & histología , Útero/diagnóstico por imagen
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