Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 21
Filter
Add more filters

Publication year range
1.
Pediatr Blood Cancer ; : e31321, 2024 Sep 05.
Article in English | MEDLINE | ID: mdl-39238140

ABSTRACT

BACKGROUND: Increasing representation in clinical trials is a priority for the National Cancer Institute and Children's Oncology Group (COG). Our survey of COG-affiliated institutions revealed that many sites have insufficient processes and resources to enroll children whose parents use languages other than English (LOE). We describe reported barriers and facilitators to enrolling children in clinical trials when parents use LOE and propose opportunities for improvement. PROCEDURES: We sent a 20-item survey to COG-affiliated institutions. Five items allowed respondents to expand on replies to questions about (a) local institutional review board (IRB) requirements regarding translation of consent documents, (b) contributors to provider discomfort consenting parents who use LOE, (c) available language services and resources, and (d) barriers to enrolling children whose parents use LOE or offer ideas about approaches to improvements. Two pairs of researchers independently coded free-text responses and compared results for concordance. RESULTS: A total of 139 (N = 230; 60%) institutions returned the survey. Respondents were mainly physician principal investigators (n = 79/139; 57%) at the United States sites (n = 118/139; 85%) serving less than 100 newly diagnosed children per year (n = 99/139, 71%). They described challenges at multiple levels. Proposed approaches to improvements included centralized provision of translated materials and video educational materials in various languages, and collaborating with IRBs on regulatory processes that protect families and facilitate equitable clinical trial access. CONCLUSIONS: Clinical trial consortia, such as COG, face challenges in enrolling representative samples. Further research is required to design and implement multilevel interventions to ensure equitable access for all, regardless of language used, and mitigate disparate research participation.

2.
Pediatr Blood Cancer ; 70 Suppl 6: e30592, 2023 09.
Article in English | MEDLINE | ID: mdl-37501542

ABSTRACT

The Children's Oncology Group (COG) Diversity and Health Disparities Committee's (DHDC's) mission is to guarantee the highest standard of care for children and adolescents and young adults (AYA) with cancer regardless of ethnic, racial, gender, or socioeconomic background. We strive to identify and address issues of disparity within the existing scientific structure of COG and to support research across COG to improve survival by ensuring equitable access to COG-sponsored clinical trials. We are committed to advance COG-led research identifying mechanistic drivers of disparities and, concurrently, evaluating interventions to alleviate disparities in the COG trial setting. As trials identify the most promising therapies, diverse representation is critical to ensure that findings are relevant to everyone. Factors impacting clinical trial participation among vulnerable populations are complex, consisting of barriers at societal, systems, and individual levels. Recent efforts by investigators within DHDC demonstrated that trial-embedded collection of family-reported sociodemographic data and social determinants of health (SDoH) is feasible and acceptable in the context of COG. Diversity in the pediatric oncology workforce is essential and one potential approach to improving representation on clinical trials. To support and retain diverse oncology providers and researchers, a Minority Young Investigator Award (MYIA) was created to facilitate opportunities for graduating trainees and YIs with an interest in childhood cancer disparities research within COG. Although there are challenges to achieve the DHDC's priorities, only through collaboration and support for this work we will be able to elucidate mechanisms underlying inferior survival outcomes for historically marginalized children and AYA, and more importantly, implement interventional investigation to improve outcomes.


Subject(s)
Neoplasms , Adolescent , Young Adult , Humans , Child , Neoplasms/therapy , Medical Oncology , Surveys and Questionnaires , Minority Groups , Racial Groups
3.
J Pediatr Hematol Oncol ; 45(1): e1-e3, 2023 01 01.
Article in English | MEDLINE | ID: mdl-35973025

ABSTRACT

Complete or partial loss of chromosome 7 is a common and well-known cytogenetic abnormality associated with preleukemic myelodysplasia and myeloid leukemia but not with autoimmune myelofibrosis. Detection of this molecular change represents poor prognosis. When malignant transformation occurs, the condition tends to be chemotherapy-resistant requiring haematopoietic stem cell transplantation (HSCT) to obtain a cure. Disappearance after immunosuppressive therapy has been documented in children with hematological disorders but not in association with cyclophosphamide and systemic lupus erythematous.We present the interesting case of a 12-year-old male with monosomy 7, systemic lupus erythematous, and lupus nephritis with the resolution of the monosomy 7 and autoimmune myelofibrosis after treatment with cyclophosphamide, along with a review of the literature.


Subject(s)
Lupus Nephritis , Primary Myelofibrosis , Male , Child , Humans , Lupus Nephritis/complications , Lupus Nephritis/genetics , Primary Myelofibrosis/complications , Primary Myelofibrosis/genetics , Primary Myelofibrosis/therapy , Chromosomes, Human, Pair 7/genetics , Cyclophosphamide , Immunosuppressive Agents
4.
J Pediatr Hematol Oncol ; 44(1): e134-e137, 2022 Jan 01.
Article in English | MEDLINE | ID: mdl-34001792

ABSTRACT

To this day, there are limited data about the effects and management of coronavirus disease infection in pediatric patients with sickle cell disease. We present the management and successful clinical course of an 8-year-old female with homozygous sickle cell disease (SS) and severe acute chest syndrome secondary to coronavirus disease 2019 infection, complicated by cortical vein thrombosis.


Subject(s)
Anemia, Sickle Cell/complications , COVID-19/complications , Systemic Inflammatory Response Syndrome/complications , Anemia, Sickle Cell/pathology , Anemia, Sickle Cell/therapy , Anti-Bacterial Agents/therapeutic use , Azithromycin/therapeutic use , COVID-19/pathology , COVID-19/therapy , Ceftriaxone/therapeutic use , Child , Erythrocyte Transfusion , Female , Humans , Intensive Care Units , Systemic Inflammatory Response Syndrome/pathology , Systemic Inflammatory Response Syndrome/therapy
5.
Pediatr Blood Cancer ; 65(9): e27105, 2018 09.
Article in English | MEDLINE | ID: mdl-29693782

ABSTRACT

Hematopoietic stem cell transplantation (HSCT) is a curative therapy for patients with phenotypically severe sickle cell anemia, and survival rates following matched-sibling HSCT are very high. However, despite cure rates much higher than HSCT for malignant diseases, the field has been slow to adopt this treatment modality for sickle cell anemia. This article explores some of the social forces that may contribute to this dichotomy.


Subject(s)
Anemia, Sickle Cell/therapy , Cultural Diversity , Health Services Accessibility , Healthcare Disparities , Hematopoietic Stem Cell Transplantation , Students, Medical/statistics & numerical data , Black or African American , Anemia, Sickle Cell/ethnology , Attitude , Female , Healthcare Disparities/ethnology , Hematopoietic Stem Cell Transplantation/ethnology , Hematopoietic Stem Cell Transplantation/statistics & numerical data , Hispanic or Latino , Humans , Male , Organizational Policy , Prejudice , Schools, Medical , Social Determinants of Health
6.
Pediatr Blood Cancer ; 65(12): e27406, 2018 12.
Article in English | MEDLINE | ID: mdl-30251459

ABSTRACT

BACKGROUND AND OBJECTIVES: Hematology/oncology patients have special health needs. To identify barriers to care, we surveyed patients/parents at Children's Hospital of New Orleans 1 year after Hurricane Katrina. We then implemented a "Hurricane Action Plan"-identification of families' evacuation plans at each hurricane season's onset; of hospital(s) and pharmacies in the intended evacuation area; updating roadmaps/treatment plans; giving information to families requiring hematology/oncology services in evacuation areas. Administration of a second survey was initiated 7 years post Katrina to assess the efficacy of the "Hurricane Action Plan." METHODS: Both surveys were conducted on random patients attending Children's Hospital. Survey #1 was performed in 2006, while survey #2 was conducted in 2013-2014. RESULTS: Eighty-nine percent of 124 families left New Orleans during Hurricane Katrina; only 50% had an evacuation plan. Twenty-five percent of families had difficulty physically accessing care; others (13%) could not find a hematology/oncology provider for follow-up and had difficulty reaching their primary provider or making appointments. An additional 25 percent did not have access to medical records. There was no access to mental health services. Eighty- two patients/representatives were surveyed in 2013/2014; 72% of families were evacuated during subsequent hurricane seasons with 78% of families having an evacuation plan. Thirty-six percent of patients had a roadmap/treatment plan with them; 71% had a 2-week medication supply. Ninety-two percent found information given to them by providers helpful. CONCLUSIONS: Interventions instituted to allow greater access to care by our hematology/oncology patients after Hurricane Katrina resulted in better preparedness, easier acquisition of information, and possibly better continuity of care.


Subject(s)
Cyclonic Storms , Delivery of Health Care , Disaster Planning , Disasters , Hematologic Neoplasms , Humans , New Orleans , Surveys and Questionnaires
7.
J Clin Nurs ; 27(21-22): 3968-3978, 2018 Nov.
Article in English | MEDLINE | ID: mdl-29943861

ABSTRACT

AIMS AND OBJECTIVES: To explore aspects related to the fulfilment of the role of nurses in palliative sedation. BACKGROUND: Palliative sedation demands knowledge and a proper attitude for maintaining comfort, preserving dignity and contributing to a peaceful death. In some developed countries, nurses have a well-established role in palliative sedation. However, studies on their role and its fulfilment are limited, particularly in the developing world. DESIGN: An exploratory, mixed, qualitative and quantitative study was conducted. A self-administered questionnaire was used to examine the level of knowledge of palliative sedation and the level of confidence in skills and knowledge about palliative sedation. Also, focus groups were conducted to explore the emotional impact and the perceived role of nurses. METHODS: Forty-one nurses from three advanced-care hospitals with palliative care units in Colombia completed the questionnaire. Also, four focus groups were conducted with 22 participants selected from the first phase. RESULTS: A high level of knowledge regarding palliative sedation was found, but the level of confidence in skills was higher than the confidence in knowledge. The participants expressed their belief that their knowledge was derived from experience but believed that it was not enough to fulfil their role with confidence. A negative emotional impact about the patients' condition was found. For some, it served as motivation to provide better care. For others, it was difficult to face, especially when assisting children. They also expressed satisfaction and gratification about providing relief from suffering through sedation. CONCLUSIONS: The role of nursing is essential in palliative sedation. Although the nurses' knowledge is adequate, it primarily derives from experience and not from formal training, which impacts on their perceived confidence and their distress. RELEVANCE TO CLINICAL PRACTICE: Formal training for the optimal fulfilling of the nursing role in palliative sedation is crucial to provide better end-of-life care, particularly in developing countries.


Subject(s)
Conscious Sedation/nursing , Health Knowledge, Attitudes, Practice , Nurse's Role , Palliative Care/psychology , Adult , Colombia , Emotions , Female , Focus Groups , Hospice and Palliative Care Nursing/methods , Humans , Perception , Qualitative Research , Surveys and Questionnaires
8.
Blood Adv ; 8(2): 441-452, 2024 01 23.
Article in English | MEDLINE | ID: mdl-37773781

ABSTRACT

ABSTRACT: Hemophilia B (HB) is caused by an inherited deficiency of plasma coagulation factor IX (FIX). Approximately 60% of pediatric patients with HB possess a severe form of FIX deficiency (<1% FIX activity). Treatment typically requires replacement therapy through the administration of FIX. However, exogenous FIX has a limited functional half-life, and the natural anticoagulant protein S (PS) inhibits activated FIX (FIXa). PS ultimately limits thrombin formation, which limits plasma coagulation. This regulation of FIXa activity by PS led us to test whether inhibiting PS would extend the functional half-life of FIX and thereby prolong FIX-based HB therapy. We assayed clotting times and thrombin generation to measure the efficacy of a PS antibody for increasing FIX activity in commercially obtained plasma and plasma from pediatric patients with HB. We included 11 pediatric patients who lacked additional comorbidities and coagulopathies. In vivo, we assessed thrombus formation in HB mice in the presence of the FIXa ± PS antibody. We found an accelerated rate of clotting in the presence of PS antibody. Similarly, the peak thrombin formed was significantly greater in the presence of the PS antibody, even in plasma from patients with severe HB. Furthermore, HB mice injected with PS antibody and FIX had a 4.5-fold higher accumulation of fibrin at the thrombus induction site compared with mice injected with FIX alone. Our findings imply that a PS antibody would be a valuable adjunct to increase the effectiveness of FIX replacement therapy in pediatric patients who have mild, moderate, and severe HB.


Subject(s)
Hemophilia B , Thrombosis , Humans , Mice , Child , Animals , Hemophilia B/drug therapy , Thrombin/metabolism , Factor IX/therapeutic use , Factor IX/metabolism , Factor IXa/metabolism , Antibodies
9.
JNCI Cancer Spectr ; 8(4)2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38889291

ABSTRACT

BACKGROUND: Persons who speak languages other than English are underrepresented in clinical trials, likely in part because of inadequate multilevel resources. We conducted a survey of institutions affiliated with the Children's Oncology Group (COG) to characterize current research recruitment practices and resources regarding translation and interpretation services. METHODS: In October 2022, a 20-item survey was distributed electronically to institutions affiliated with COG to assess consent practices and resources for recruiting participants who speak languages other than English to COG trials. Descriptive statistics were used to summarize responses; responses were compared by institution size and type as well as respondent role. RESULTS: The survey was sent to 230 institutions, and the response rate was 60% (n = 139). In total, 60% (n = 83) of those respondents had access to short-form consent forms. Full consent form translation was required at 50% of institutions, and 12% of institutional review boards restricted use of centrally translated consent forms. Forty-six percent (n = 64) of institutions reported insufficient funding to support translation costs; 19% (n = 26) had access to no-cost translation services. Forty-four percent (n = 61) were required to use in-person interpreters for consent discussions; the most frequently cited barrier (56%) to obtaining consent was lack of available in-person interpreters. Forty-seven percent (n = 65) reported that recruiting persons who speak languages other than English to clinical trials was somewhat or very difficult. CONCLUSIONS: Institutions affiliated with COG face resource-specific challenges that impede recruitment of participants who speak languages other than English for clinical trials. These findings indicate an urgent need to identify strategies aimed at reducing recruitment barriers to ensure equitable access to clinical trials.


Subject(s)
Clinical Trials as Topic , Communication Barriers , Language , Patient Selection , Humans , Child , Translating , Consent Forms , Surveys and Questionnaires , Informed Consent , Neoplasms/therapy
10.
Chin J Cancer ; 31(8): 381-91, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22739263

ABSTRACT

Glucocorticoid (GC) steroid hormones are used to treat acute lymphoblastic leukemia (ALL) because of their pro-apoptotic effects in hematopoietic cells. However, not all leukemia cells are sensitive to GC, and no assay to stratify patients is available. In the GC-sensitive T-cell ALL cell line CEM-C7, auto-up-regulation of RNA transcripts for the glucocorticoid receptor (GR) correlates with increased apoptotic response. This study aimed to determine if a facile assay of GR transcript levels might be promising for stratifying ALL patients into hormone-sensitive and hormone-resistant populations. The GR transcript profiles of various lymphoid cell lines and 4 bone marrow samples from patients with T-cell ALL were analyzed using both an optimized branched DNA (bDNA) assay and a real-time quantitative reverse transcription-polymerase chain reaction assay. There were significant correlations between both assay platforms when measuring total GR (exon 5/6) transcripts in various cell lines and patient samples, but not for a probe set that detects a specific, low abundance GR transcript (exon 1A3). Our results suggest that the bDNA platform is reproducible and precise when measuring total GR transcripts and, with further development, may ultimately offer a simple clinical assay to aid in the prediction of GC-sensitivity in ALL patients.


Subject(s)
Apoptosis/drug effects , Branched DNA Signal Amplification Assay/methods , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma , Receptors, Glucocorticoid/metabolism , Reverse Transcriptase Polymerase Chain Reaction/methods , Adolescent , Antineoplastic Agents, Hormonal/pharmacology , Cell Line, Tumor , Child , Dexamethasone/pharmacology , Drug Resistance, Neoplasm , Exons , Glucocorticoids/pharmacology , Humans , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/metabolism , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/pathology , Receptors, Glucocorticoid/genetics , Transcription, Genetic/drug effects , Up-Regulation
11.
Pediatrics ; 150(4)2022 10 01.
Article in English | MEDLINE | ID: mdl-36180615

ABSTRACT

Bruising or bleeding in a child can raise the concern for child abuse. Assessing whether the findings are the result of trauma and/or whether the child has a bleeding disorder is critical. Many bleeding disorders are rare, and not every child with bruising/bleeding that may raise a concern for abuse requires an evaluation for bleeding disorders. However, in some instances, bleeding disorders can present in a manner similar to child abuse. Bleeding disorders cannot be ruled out solely on the basis of patient and family history, no matter how extensive. The history and clinical evaluation can be used to determine the necessity of an evaluation for a possible bleeding disorder, and prevalence and known clinical presentations of individual bleeding disorders can be used to guide the extent of laboratory testing. This clinical report provides guidance to pediatricians and other clinicians regarding the evaluation for bleeding disorders when child abuse is suspected.


Subject(s)
Blood Coagulation Disorders , Child Abuse , Contusions , Child , Child Abuse/diagnosis , Contusions/diagnosis , Contusions/etiology , Hemorrhage/diagnosis , Hemorrhage/etiology , Humans , Prevalence
12.
J Clin Invest ; 118(9): 3132-42, 2008 Sep.
Article in English | MEDLINE | ID: mdl-18688285

ABSTRACT

Previously, several individuals with X-linked SCID (SCID-X1) were treated by gene therapy to restore the missing IL-2 receptor gamma (IL2RG) gene to CD34+ BM precursor cells using gammaretroviral vectors. While 9 of 10 patients were successfully treated, 4 of the 9 developed T cell leukemia 31-68 months after gene therapy. In 2 of these cases, blast cells contained activating vector insertions near the LIM domain-only 2 (LMO2) proto-oncogene. Here, we report data on the 2 most recent adverse events, which occurred in patients 7 and 10. In patient 10, blast cells contained an integrated vector near LMO2 and a second integrated vector near the proto-oncogene BMI1. In patient 7, blast cells contained an integrated vector near a third proto-oncogene,CCND2. Additional genetic abnormalities in the patients' blast cells included chromosomal translocations, gain-of-function mutations activating NOTCH1, and copy number changes, including deletion of tumor suppressor gene CDKN2A, 6q interstitial losses, and SIL-TAL1 rearrangement. These findings functionally specify a genetic network that controls growth in T cell progenitors. Chemotherapy led to sustained remission in 3 of the 4 cases of T cell leukemia, but failed in the fourth. Successful chemotherapy was associated with restoration of polyclonal transduced T cell populations. As a result, the treated patients continued to benefit from therapeutic gene transfer.


Subject(s)
Chromosomes, Human, X , Genetic Therapy/adverse effects , Genetic Therapy/methods , Leukemia, T-Cell/etiology , Severe Combined Immunodeficiency/therapy , Adaptor Proteins, Signal Transducing , Antineoplastic Agents/pharmacology , Chromosome Aberrations , Cyclin D2 , Cyclins/genetics , DNA-Binding Proteins/genetics , Gammaretrovirus/metabolism , Humans , Infant , Janus Kinase 3/genetics , LIM Domain Proteins , Leukemia, T-Cell/complications , Leukemia, T-Cell/therapy , Metalloproteins/genetics , Models, Biological , Mutation , Proto-Oncogene Mas , Proto-Oncogene Proteins , Receptors, Interleukin-2/genetics , Severe Combined Immunodeficiency/complications
13.
Oecologia ; 163(2): 415-23, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20213150

ABSTRACT

The spatial context in which seed predation occurs may modify the spatial structure of recruitment generated by seed dispersal. The Janzen-Connell (J-C) model predicts that granivores will exert greater pressure on the parent plant or at those sites where the density of dispersed seeds is higher. We have investigated how the probability of post-dispersal survival of Juglans australis varies with nut density across a hierarchy of spatial scales. We experimentally evaluated the survival of 3,120 nuts at three spatial scales: meso-scale (

Subject(s)
Ecosystem , Feeding Behavior/physiology , Geography , Nuts/growth & development , Predatory Behavior/physiology , Rodentia/physiology , Seeds/growth & development , Animals , Argentina , Juglans/growth & development , Juglans/physiology , Population Density , Trees/growth & development , Trees/physiology , Tropical Climate
14.
Ochsner J ; 20(2): 151-160, 2020.
Article in English | MEDLINE | ID: mdl-32612469

ABSTRACT

Background: Children with sickle cell disease (SCD) often suffer from growth deficits and impaired immunity. However, the association between mild to moderate malnutrition and in vitro lymphocyte function has not been well studied. The goal of this study was to investigate the effects of undernutrition on lymphocyte functions in children with SCD. Methods: Weight; height; plasma concentrations of albumin (Alb), prealbumin (PA), transferrin (Tf), retinol-binding protein (RBP), α1-acid glycoprotein (AGP), C-reactive protein (CRP), and ceruloplasmin (Cp); and lymphocyte proliferation and interleukin (IL)-2 in phytohemagglutinin-treated blood lymphocytes were measured in 90 children with SCD (59 SS, 4 Sß°, 27 SC hemoglobin genotypes). Results: The mean age of the children included in the analysis was 7.65 years. Four of the 90 children had weight and height below the fifth percentile. A higher percentage of children with HbSS/HbSß° (61.4%) than of those with HbSC (44%) had ≥2 plasma protein concentrations below normal (Alb <35 g/L, PA <160 mg/L, Tf <2.0 g/L, and RBP ≤20 mg/L). Mean anthropometric measurements, hemoglobin, and hematocrit were lower in children with HbSS/HbSß° than in those with HbSC (P<0.05). Lymphocyte proliferation was reduced by 20% to 27% in children with HbSS/HbSß° with undernutrition plus inflammation (AGP >1 g/L, CRP >5 mg/L, Cp >600 mg/L) compared to children with neither. Regardless of inflammatory status, lymphocyte proliferation was reduced by 29% to 49% in children with HbSS/HbSß° and undernutrition defined by PA or Alb plus RBP (P<0.05) compared to those with RBP within normal range. Neither undernutrition nor inflammation reduced lymphocyte proliferation in children with HbSC. Mean IL-2 activity was reduced by undernutrition, defined as PA <160 mg/L, in both groups. PA, RBP, and hemoglobin concentrations positively correlated with in vitro lymphocyte functions (P<0.05). Conclusion: Undernutrition altered in vitro lymphocyte function in children with the HbSS/HbSß° genotypes. Dietary supplements may improve the altered functions in these children.

15.
J Pediatr Hematol Oncol ; 31(12): 895-900, 2009 Dec.
Article in English | MEDLINE | ID: mdl-19855306

ABSTRACT

S-glutathionyl hemoglobin is a proposed biomarker of oxidative stress but has not been measured in sickle cell disease patients. Unlike the S-glutathionyl adduct of normal adult hemoglobin, S-glutathionyl sickle hemoglobin (HbSSG) cannot be directly measured by capillary isoelectric focusing, because it coelutes with fetal hemoglobin (HbF). This suggests that HbF, measured in sickle cell patients with or without hydroxyurea therapy, might contain endogenous HbSSG. As S-glutathionyl hemoglobin can form during sample storage, HbSSG could falsely elevate HbF levels in stored samples. We measured HbSSG based on the quantitative difference in the heterogeneous HbF/HbSSG peak before and after hemolysates were treated with dithiothreitol. Paired t tests showed that dithiothreitol reduced HbF/HbSSG in blood from pediatric sickle cell patients (n=25, mean decrease+/-SD=1.0%+/-0.6, P<0.05) but not in normal infants (n=25). Higher HbF levels in hydroxyurea-treated patients (n=5) were not attributable to HbSSG. HbSSG increased significantly within 1 day in samples stored at -20 degrees C but was unchanged in samples stored 60 days at-70 degrees C. We conclude that blood from sickle cell patients contained up to 2.2% HbSSG, and that endogenous HbSSG is a minor interferent in the measurement of HbF in fresh blood but a major interferent in improperly stored samples.


Subject(s)
Anemia, Sickle Cell/blood , Fetal Hemoglobin/analysis , Glutathione/blood , Hemoglobin, Sickle/analysis , Adolescent , Adult , Anemia, Sickle Cell/drug therapy , Child , Child, Preschool , Erythrocytes, Abnormal/metabolism , Hemoglobins , Homozygote , Humans , Hydroxyurea/therapeutic use , Infant , Infant, Newborn , Prognosis , Young Adult
16.
World J Pediatr Congenit Heart Surg ; 9(1): 110-113, 2018 01.
Article in English | MEDLINE | ID: mdl-27619327

ABSTRACT

A rare case of massive pulmonary embolism is presented in an oligosymptomatic teenager with predisposing factors. Computed tomography pulmonary angiography supported by three-dimensional reconstruction was diagnostic. The embolus qualified as massive by conventional anatomical guidelines, but as low risk by more recent functional criteria. Functional assessment has complemented morphologic assessment for risk stratification in adult patients. Such evidence is scarce in pediatrics. The patient underwent surgical embolectomy, followed by prophylactic anticoagulation, without further events. Diagnostic and management challenges are discussed.


Subject(s)
Pulmonary Embolism/diagnostic imaging , Adolescent , Computed Tomography Angiography , Embolectomy , Female , Humans , Lung/diagnostic imaging , Lung/pathology , Lung/surgery , Pulmonary Embolism/surgery
17.
J La State Med Soc ; 157(6): 325-8, 2005.
Article in English | MEDLINE | ID: mdl-16579345

ABSTRACT

Lymphomas constitute 10-12% of childhood cancers and are the third most common childhood malignancy. A retrospective analysis of thirty-six patients from the tumor registry of Children's Hospital of New Orleans was conducted during the period from 1995-2000. Patients were divided based on patient and tumor characteristics with recurrence and survival data compared to the Surveillance, Epidemiology and End Results (SEER) data of the National Cancer Institute. There were 18 patients (51%) with Non-Hodgkin's Lymphoma (NHL) and 17 (49%) with Hodgkin's disease (HD). Our sample had a similar distribution compared to the national population cohort except for different gender distribution in our HD patients. Also, most of our patients (63%) presented with advanced disease (Stages III and IV). Seventeen percent had recurrence of disease and 80% achieved remission, of which two patients developed secondary leukemia. Overall mortality was 17%. The survival in patients with HD was 94% which is comparable if not slightly superior to the national data. In patients with NHL, survival was 72% which was marginally lower than the national results (80%), most likely due to more advanced disease. Increased awareness in the pediatric community of the signs and symptoms of childhood lymphoma should result in earlier diagnosis and improved survival.


Subject(s)
Lymphoma, Non-Hodgkin/epidemiology , Adolescent , Adult , Child , Child, Preschool , Female , Hospitals, Pediatric , Humans , Louisiana/epidemiology , Lymphoma/epidemiology , Lymphoma/pathology , Lymphoma, Non-Hodgkin/pathology , Male , Neoplasm Staging , Retrospective Studies
18.
Urology ; 85(5): 1186-1189, 2015 May.
Article in English | MEDLINE | ID: mdl-25818907

ABSTRACT

Even though vaginal bleeding is an unusual clinical presentation in infants and young children, thorough evaluation by the pediatric urologist requires the recognition and knowledge of less-common conditions, including malignancy. Extragonadal germ cell tumors are rare in children aged <15 years, representing approximately 1% of all cancers. Because of the close collaboration between pediatric oncologists and pediatric urologists, a multidisciplinary approach to the management and treatment of these tumors includes chemotherapy and surgical resection, aiming for fertility preservation when possible. We present a 10-month-old infant with a cervical or uterine germ cell tumor and the challenges found during her treatment.


Subject(s)
Endodermal Sinus Tumor/therapy , Neoplasms, Germ Cell and Embryonal/therapy , Uterine Neoplasms/therapy , Combined Modality Therapy , Female , Humans , Infant
19.
Leuk Lymphoma ; 45(11): 2355-9, 2004 Nov.
Article in English | MEDLINE | ID: mdl-15512831

ABSTRACT

We present a case of gamma-delta (gammadelta) T-cell lymphoma as a recurrent event in a pediatric liver transplant recipient. Liver transplantation was performed during infancy in an 18-month-old black girl because of cryptogenic cirrhosis. The patient received immunosuppression with cyclosporine and prednisone. Five years after transplantation, the patient was found to have a gammadelta T-cell lymphoma located in retroperitoneal nodes. She received chemotherapy and did well, remaining disease-free for 6 years. She remained only on prednisone for prevention of graft rejection, but was noted to have a non-tender skin nodule that upon biopsy proved to be again a gammadelta T-cell lymphoma. However, comparison of tissue from both tumors revealed that the second occurrence of this malignancy was a de novo event, differing from the first by immunophenotypic and immunohistochemical characteristics, and TCR rearrangement. The patient continues to do well, without evidence of disease recurrence, after being treated again with chemotherapy. A summary of the literature is presented and comparison of our case is made.


Subject(s)
Liver Transplantation/adverse effects , Lymphoma, T-Cell/etiology , Receptors, Antigen, T-Cell, gamma-delta/immunology , Adolescent , Cyclosporine/pharmacology , Disease-Free Survival , Female , Humans , Immunoglobulins/metabolism , Immunohistochemistry , Immunophenotyping , Immunosuppressive Agents/pharmacology , Infant , Lymphoma, T-Cell/immunology , Lymphoma, T-Cell/pathology , Prednisone/pharmacology , Receptors, Antigen, T-Cell/immunology , Recurrence , Time Factors , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL