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Dive into the research topics where Brigid G. Leventhal is active.

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Featured researches published by Brigid G. Leventhal.


The New England Journal of Medicine | 1976

Effects of Childhood Leukemia and Chemotherapy on Puberty and Reproductive Function in Girls

Ethel S. Siris; Brigid G. Leventhal; Judith L. Vaitukaitis

Longer survivial in childhood leukemia prompted this study of pubertal development and reproductive function in 35 girls and women. Twenty-eight patients (80 per cent) had normal pubertal progression during a median of 74 months after diagnosis of leukemia and 49 months of chemotherapy. Seven patients were abnormal: four exhibited hypothalamic-pituitary dysfunction with suppression of circulating serum gonadotropins (less than 6 mlU per milliliter); three others had evidence of primary ovarian dysfunction - reversible in two - with inappropriately elevated circulating serum gonadotropins (follicle-stimulating hormone greater than 20 mlU per milliliter). Normal sexual development correlated best with pubertal status at onset of leukemia; only one of 17 patients with diagnosis before puberty experienced altered pubertal progression, whereas abnormalities appeared in six of 18 with onset during puberty or after menarche. Thus, most girls with aggressively treated child-hood leukemia have an excellent prognosis for normal hypothalamic-pituitary-ovarian function; normal development is further enhanced in patients who are prepubertal at onset of leukemia.


Annals of Otology, Rhinology, and Laryngology | 1993

Sites of Predilection in Recurrent Respiratory Papillomatosis

Haskins K. Kashima; Brigid G. Leventhal; Phoebe Mounts; Ralph H. Hruban

Florid and widespread respiratory papillomatosis is a devastating disorder occurring in a subset of patients with recurrent respiratory papillomatosis, and it poses a major dilemma for the patient and the surgeon. Contrary to common belief, the distribution of papilloma lesions is not random, but follows a predictable pattern, with lesions occurring at anatomic sites in which ciliated and squamous epithelia are juxtaposed. The predominant sites of disease in recurrent respiratory papillomatosis are the limen vestibuli, the nasopharyngeal surface of the soft palate, the midzone of the laryngeal surface of the epiglottis, the upper and lower margins of the ventricle, the undersurface of the vocal folds, the carina, and bronchial spurs. These sites have the common histologic feature of a squamociliary junction. Papillomata also occur at the tracheostomy tract and at the midthoracic trachea in patients with tracheostomies. At the latter sites, abrasion injury to ciliated epithelium heals with metaplastic squamous epithelium and creates an iatrogenic squamociliary junction. The apparent preferential localization of papilloma at squamociliary junctions has at least 2 implications: first, that detection of occult asymptomatic papillomata is enhanced by careful examination of squamociliary junctions, and, second, that iatrogenic papilloma “implantation” is preventable by avoiding injury to nondiseased squamous and ciliated epithelia.


Journal of Clinical Investigation | 1978

Correlation of Adenosine Deaminase Activity with Cell Surface Markers in Acute Lymphoblastic Leukemia

John F. Smyth; David G. Poplack; Betty J. Holiman; Brigid G. Leventhal; Geraldine Yarbro

Adenosine deaminase (ADA) activity has been measured in the lymphoblasts of 23 untreated patients with acute lymphoblastic leukemia and related to the presence or absence of immunologic cell surface markers. The mean ADA activity in the acute lymphoblastic leukemia population as a whole was increased fourfold over that in normal lymphocytes. 9 of the 23 patients were classified as thymus-derived (T-) cell acute lymphoblastic leukemia on the basis of erythrocyte rosette positivity; the remaining 14 patients had null-cell leukemia. The mean ADA activity (ADA U/mg protein) of T-cell lymphoblasts (102 U) was 3 times higher than the mean of null lymphoblasts (30 U). This difference is statistically significant (P less than 0.02). Measurement of ADA activity offers a biochemical method of distinguishing between immunological subtypes of lymphoblasts which may be of prognostic and therapeutic value.


The New England Journal of Medicine | 1991

Long-Term Response of Recurrent Respiratory Papillomatosis to Treatment with Lymphoblastoid Interferon Alfa-N1

Brigid G. Leventhal; Haskins K. Kashima; Phoebe Mounts; Linda Thurmond; Sharon Chapman; Stephen Buckley; Diane Wold

Abstract Background. We earlier reported that patients with recurrent respiratory papillomatosis responded to six months of treatment with lymphoblastoid interferon alfa-n1. Because another study of patients treated for one year with leukocyte interferon alfa-n3 found that the growth rate of papillomas was slowed in the first six months but returned to base line during months 7 through 12 despite persistent interferon treatment, we now report the long-term results in our original study patients who were followed for a median of four years after the original one-year crossover study. Methods. After the patients in our study had completed the first study year, their physicians could continue or recommence treatment with lymphoblastoid interferon alfa-n1 in a dose of either 2 MU per square meter of body-surface area per day or 4 MU per square meter every other day. The extent of disease was measured by endoscopy when clinically indicated. Results. Data on late-follow-up were obtained for 60 of the 66 patient...


Journal of Clinical Oncology | 1990

Invasive fungal disease in pediatric acute leukemia patients with fever and neutropenia during induction chemotherapy: a multivariate analysis of risk factors.

J M Wiley; N Smith; Brigid G. Leventhal; M L Graham; Lewis C. Strauss; C A Hurwitz; J Modlin; D Mellits; R Baumgardner; B J Corden

We evaluated the courses of 115 consecutive cases of pediatric acute leukemia treated with induction chemotherapy. Seventy-two patients developed fever associated with neutropenia; 15 developed systemic fungal infections. We reviewed multiple demographic and treatment characteristics of these patients in an attempt to identify potential risk factors for the development of invasive fungal disease (IFD). Risk factors identified in a univariate analysis included duration of neutropenia after first fever (P less than .0001), diagnosis of acute nonlymphocytic leukemia (ANLL) (P = .003), onset of fever and neutropenia within 5 days of starting induction chemotherapy (P = .009), and multiple (greater than one) surveillance culture sites positive for fungal organisms (P = .02). In a multiple logistic regression analysis, duration of neutropenia (P less than .001) remained a significant risk factor. The study group of patients had a significantly higher risk of fungal infections than a matched group of leukemia pa...


Journal of Clinical Oncology | 1994

Intensive intravenous methotrexate and mercaptopurine treatment of higher-risk non-T, non-B acute lymphocytic leukemia: A Pediatric Oncology Group study.

Bruce M. Camitta; Donald H. Mahoney; Brigid G. Leventhal; Stephen J. Lauer; J J Shuster; S Adair; Curt I. Civin; L Munoz; P Steuber; D Strother

PURPOSE To determine the potential efficacy and toxicity of intravenous (i.v.) methotrexate (MTX) and mercaptopurine (MP) as postremission intensification treatment for children with B-lineage acute lymphoblastic leukemia (ALL) at higher risk to relapse. PATIENTS AND METHODS Eighty-three patients (age 1 to 20 years) with higher-risk B-lineage ALL were entered onto this protocol. Following standard four-drug remission induction, 80 patients received 12 intensive 2-week cycles of MTX/MP: MTX 200 mg/m2 i.v. push, then 800 mg/m2 i.v. 24-hour infusion on day 1; MP 200 mg/m2 i.v. in 20 minutes, then 800 mg/m2 i.v. 8-hour infusion day 2; MTX 20 mg/m2 intramuscularly day 8; and MP 50 mg/m2 by mouth days 8 to 14. Age-based triple intrathecal therapy (MTX, hydrocortisone, and cytarabine) was administered for CNS prophylaxis. Continuation therapy was weekly MTX/MP (as on days 8 to 14) for 2 years. RESULTS Eighty-one patients (98%) entered remission. There were 28 relapses (marrow, n = 11; marrow and CNS, n = 2; isolated CNS, n = 9; testes, n = 5; ovaries, n = 1). No overt relapse occurred during the intensive phase of therapy. The event-free survival (EFS) rate at 4 years is 57.4% +/- 9.1% (SE). Hematologic, mucosal, and infectious toxicities were seen in 12%, 9%, and 5% of intensive MTX/MP courses, but were generally mild. CONCLUSION Combined data from this and our previous trial suggest that intensive MTX/MP may produce long-term disease-free survival in 70 to 75% of children with B-lineage ALL. In comparison to other intensive regimens, intensive MTX/MP is easy to administer, effective, and relatively nontoxic. If patients at risk for failure of MTX/MP can be identified prospectively, more aggressive regimens could be restricted to this smaller (25% to 30%) cohort.


Journal of Clinical Oncology | 1991

Intensive chemotherapy and low-dose radiotherapy for the treatment of advanced-stage Hodgkin's disease in pediatric patients: a Pediatric Oncology Group study.

M A Weiner; Brigid G. Leventhal; Robert B. Marcus; Ml Brecher; J L Ternberg; F G Behm; Alan Cantor; M Wharam; Allen Chauvenet

Sixty-two patients with advanced-stage Hodgkins disease and a median age of 12 years (range, 3 to 22 years) were treated with four cycles of mechlorethamine, vincristine, procarbazine, and prednisone (MOPP) alternating with four cycles of doxorubicin, vinblastine, bleomycin, and dacarbazine (ABVD) followed by low-dose radiotherapy (RT). We determined the feasibility, immediate safety, and rapidity of response of patients to this regimen, as well as the relationship between prognostic factors and the rate of complete remission (CR), event-free survival (EFS), and overall survival. Therapy was well tolerated, and the major toxicity was hematopoietic. At the end of chemotherapy, 54 of 62 patients (87%) were in CR by clinical restaging, with a biopsy of residual disease where necessary. The actuarial 3-year EFS is 77% (SE, 11%), with a median follow-up of 35 months, and the survival is 91% (SE, 7%). With respect to EFS, female patients and those with stage II or III disease fared statistically better than males and patients with stage IV disease, respectively. Six patients have died: three of progressive Hodgkins disease, one of secondary acute myelocytic leukemia (AML), one of secondary non-Hodgkins lymphoma (NHL), and one of overwhelming bacterial sepsis. The Pediatric Oncology Group (POG) is currently engaged in a randomized study of these eight cycles of chemotherapy with and without RT to assess the role of RT in achieving comparable results.


Journal of The American Academy of Child Psychiatry | 1986

Intermittent High Dose Corticosteroid Treatment in Childhood Cancer: Behavioral and Emotional Consequences

James C. Harris; Cynthia A. Carel; Leon A. Rosenberg; Paramjit Joshi; Brigid G. Leventhal

Effects of prednisone (60 mg/m 2 ) on behavior, mood, and sleep were investigated in 16 outpatient pediatric oncology patients in remission and on a maintenance drug treatment protocol calling for intermittent oral pulses of prednisone. Rating scales for sleep disturbance, depression, and an inventory of common symptons associated with corticosteroids were used to study patients as their own controls during alternating phases of maintenance drug alone and maintenance drug plus prednisone. There were statistically significant differences in number of symptoms on and off prednisone including ( p p p p 2 ) on oncology protocols is recommended.


The American Journal of Medicine | 1975

Varied manifestations of a familial lymphoproliferative disorder

Joseph F. Fraumeni; Wladimir Wertelecki; William A. Blattner; Robert D. Jensen; Brigid G. Leventhal

In a sibship of nine adults, four died of lymphocytic or histiocytic lymphomas, and one of Waldenströms macroglobulinemia (immunoglobulin M [IgM], kappa type) complicated by adenocarcinoma of the lung. In the next generation, one member died of Hodgkins disease; four of nine healthy persons had impaired lymphocyte transformation in vitro in response to phytohemagglutinin-P (PHA-P), and three of these had polyclonal elevations in IgM levels. Subsequent to these observations, adenocarcinoma of the lung developed in one woman with immune defects, and lymphocytic leukemia developed in her 3 year old grandson. The findings in this family point to a genetically regulated defect of immunity expressed as diverse lymphoproliferative disorders, including polyclonal and monoclonal IgM gammopathies. The occurrence of pulmonary adenocarcinoma in two members suggests genetic and immunologic determinants in these instances.


The Journal of Pediatrics | 1992

Systemic lupus erythematosus in a child receiving long-term interferon therapy

Asad Tolaymat; Brigid G. Leventhal; Abdullah Sakarcan; Haskins K. Kashima; Carmela Monteiro

Systemic lupus erythematosus (SLE) developed in a 10 1/2-year-old white boy with juvenile laryngeal papillomatosis who had been treated with interferon alfa-n1 for 7 years. His age, gender, and fast recovery after discontinuation of interferon therapy and institution of appropriate treatment for SLE are compatible with a diagnosis of drug-induced SLE. Autoimmune disorders may occur as a complication of interferon therapy.

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Robert G. Graw

National Institutes of Health

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Dean L. Mann

National Institutes of Health

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Herbert Kaizer

Johns Hopkins University

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Roger Halterman

National Institutes of Health

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Phoebe Mounts

Johns Hopkins University

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