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Abijay CA, Kemper WC, Pham A, Johnson RF, Mitchell RB. Pediatric Obstructive Sleep Apnea and Sickle Cell Disease: Demographic and Polysomnographic Features. Laryngoscope 2023. [PMID: 36883666 DOI: 10.1002/lary.30638] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/29/2023] [Accepted: 02/22/2023] [Indexed: 03/09/2023]
Abstract
OBJECTIVE Obstructive sleep apnea (OSA) is prevalent in children with sickle cell disease (SCD). We compared the demographic, clinical, and polysomnographic characteristics of children with and without SCD. METHODS This retrospective chart review included children with SCD (n = 89) and without SCD (n = 192) ages 1-18 years referred for polysomnography (PSG) for OSA. RESULTS Children with SCD were predominantly African American when compared to the non-SCD group (95% vs. 28%, p < 0.001). The non-SCD group had a higher BMI z-score (1.3 vs. 0.1, p < 0.001) and a higher percentage of patients classified as obese (52% vs. 13%, p < 0.001). In children with SCD, 43% had severe OSA and 5.6% had no OSA. In the non-SCD group, 67% had severe OSA and 4.7% had no OSA. The SCD compared to the non-SCD group had a lower mean apnea-hypopnea index (AHI) (13.6 vs. 22.4, p = 0.006) but a higher percent sleep time below 90% oxygen saturation (10.5% vs. 3.5%, p < 0.001). Predicted probability for severe OSA in children with SCD decreased with increasing age (OR = 0.81, 95% CI: 0.70-0.93). CONCLUSION Children with SCD referred for PSG are at risk for severe OSA. Compared with the non-SCD group, most children were African American with lower rates of obesity and lower AHIs but longer periods of nocturnal hypoxemia. Likelihood for severe OSA decreased with increasing age for the SCD group. LEVEL OF EVIDENCE Level III, retrospective comparative study Laryngoscope, 2023.
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Affiliation(s)
| | | | - An Pham
- Children's Medical Center Dallas, Dallas, Texas, USA.,University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Romaine F Johnson
- Children's Medical Center Dallas, Dallas, Texas, USA.,University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Ron B Mitchell
- Children's Medical Center Dallas, Dallas, Texas, USA.,University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Lumbala PK, Mbayabo G, Ngole MN, Lumaka A, Race V, Matthijs G, Van Geet C, Lukusa PT, Devriendt K, Mikobi TM. Clinical and laboratory characterization of adult sickle cell anemia patients in Kinshasa. PLoS One 2022; 17:e0278478. [PMID: 36525434 PMCID: PMC9757547 DOI: 10.1371/journal.pone.0278478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Sickle cell anemia (SCA) is a monogenic hemoglobinopathy associated with severe acute and chronic complications, with the highest incidence worldwide in Sub-Saharan Africa. The wide variability in clinical manifestations suggest that a uniform response to hydroxurea may not be attained. In view of a potential treatment with hydroxyurea (HU), we assessed the variability of clinical and hematological manifestations in a cohort of adults with SCA in Kinshasa, capital of the DR Congo in Central Africa. METHODS A cross-sectional study was conducted in a hospital dedicated to SCA management in Kinshasa. Clinical history of patients was recorded, a complete physical examination performed. The diagnosis was confirmed by means of DNA analysis. A full blood count and hemolysis markers were measured. The severity of the disease was evaluated by means of a previously reported score. RESULTS The study group consisted of 166 genetically confirmed SCA patients. The SCA severity was mild in 28.9%, moderate in 64.5% and severe in 6.6%. The disease severity score increased with patient's age (p ≤ 0.001). The severity was higher in males compared to females (p = 0.012). In males, the severity score was correlated with the presence of priapism (p = 0.045), a manifestation not previously incorporated in the severity score. The severity score was inversely correlated with the fetal hemoglobin (HbF) rate (p = 0.005). Malnutrition (BMI <18.5 kg/m2) was present in 47% of patients and was related to the male sex, hip disease (aOR 3.11; p = 0.019) and severe phenotype (aOR 3.53; p = 0.012). Leg ulcers were more frequent in males than in females (p = 0.001; OR 24.3) and were correlated with the number of days of hospitalization (p = 0.029). Hip disease was related to the increasing age (p = 0.008). CONCLUSION In this selected, hospital-based populations of adults with SCA, severe disease was rare, which may be due to survival bias. However, two thirds had moderate severity of the disease, mostly with a low HbF, and they may benefit from HU treatment. In the Central-African setting the separation between vaso-occlusive and hyperhemolytic sub-phenotypes was not applicable.
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Affiliation(s)
| | - Gloire Mbayabo
- Department of Pediatrics, University of Kinshasa, Kinshasa, DRC
| | - Mamy Nzita Ngole
- Department of Clinical Biology, University of Kinshasa, Kinshasa, DRC
| | - Aimé Lumaka
- Faculty of Medicine, Center of Human Genetics, University of Kinshasa, Kinshasa, DRC
| | - Valerie Race
- Center for Human Genetics, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Gert Matthijs
- Center for Human Genetics, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Chris Van Geet
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium
| | | | - Koenraad Devriendt
- Center for Human Genetics, KU Leuven and University Hospitals Leuven, Leuven, Belgium
- * E-mail: (KD); (TMM)
| | - Tite Minga Mikobi
- Faculty of Medicine, Center of Human Genetics, University of Kinshasa, Kinshasa, DRC
- Faculty of Medicine, Molecular Biology and Human Genetics Department of fundamental sciences, University of Kinshasa, Kinshasa, DRC
- * E-mail: (KD); (TMM)
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The relationship between anemia and obesity. Expert Rev Hematol 2022; 15:911-926. [PMID: 36189499 DOI: 10.1080/17474086.2022.2131521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Obesity is linked to a variety of unfavourable outcomes, including anaemia, which is a serious global public health problem. The prevalence of obesity along with anaemia suggests a relationship between obesity and anaemia. Recent studies have demonstrated strong associations between anaemia and obesity, chronic diseases, ageing, hepato-renal impairment, chronic infection, autoimmune diseases, and widespread malignancy. Thus, the intersection point of obesity and anaemia is an important area of attention. AREA COVERED This paper reviews the pathophysiology of obesity and anaemia. Then, It deliberates the relationship between obesity and different types of anaemia and other clinical forms associated with anaemia. EXPERT OPINION Obesity, especially obesity-related to excessive visceral fat distribution, is accompanied by several disturbances at the endothelial, hormonal, and inflammatory levels. These disturbances induce activation of several mechanisms that contribute to the anaemic state. Over-weight patients with chronic anaemias are required to maintain the related vitamins and minerals at optimum levels and appropriate BMI. In addition, a regular clinical follow-up is essential to be scheduled to reduce the risk of complications associated with anaemia in obese patients.
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Treatment-related Correlates of Growth in Children With Sickle Cell Disease in the DISPLACE Cohort. J Pediatr Hematol Oncol 2022; 44:249-254. [PMID: 34486556 PMCID: PMC8898314 DOI: 10.1097/mph.0000000000002296] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
Reduced growth and delayed maturation have been described in children with sickle cell disease (SCD). This study investigated growth and hemolysis in children with SCD in the DISPLACE (Dissemination and Implementation of Stroke Prevention Looking at the Care Environment) cohort. The database includes 5287 children, of which, 3305 had at least 2 growth measurements over a 5-year period. Body mass index was converted to z-scores (zBMI), and 19.8%, 66.1%, 14.2% of children were classified as underweight, normal, and overweight/obese, respectively. Multivariable analysis of growth was conducted and included variables: age, sex, blood pressure, hemoglobin, reticulocyte count, treatment with chronic red cell transfusion therapy (CRCT), or hydroxyurea therapy. Baseline hemoglobin levels were associated with the lower odds of being underweight (odds ratio [OR]=0.93, 95% confidence interval [CI]: 0.86-0.99), and higher odds of being overweight/obese (OR: 1.26, 95% CI: 1.17-1.36) compared with normal zBMI. CRCT was associated with being overweight/obese at baseline (OR: 1.85, 95% CI: 1.31-2.60). Overall, results showed that children who were underweight improved regardless of therapy over the 2-year time period. However, children on CRCT are at higher risk for being overweight and should be monitored closely.
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Okocha CE, Manafa PO, Igwe CN, Okite UP, Onah CE, Efobi C. Adiponectin and Disease Severity in Sickle Cell Anemia Patients Attending a Tertiary Health Institution in Nnewi, Southeast Nigeria. Front Genet 2022; 13:799425. [PMID: 35281808 PMCID: PMC8905498 DOI: 10.3389/fgene.2022.799425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Hemoglobin polymerization in sickle cell anemia (SCA) leads to abnormally rigid and adhesive erythrocytes that obstruct blood vessels, leading to poor tissue perfusion, hence provoking inflammation and damage of surrounding tissues. Adiponectin, a protein hormone, presumptively has anti-inflammatory characteristics, hence may be an important therapeutic target in SCA. Aim: The aim of the study was to evaluate the status of adiponectin and its correlation with disease severity in SCA. Patients and Methods: A total of 84 subjects were recruited for the study comprising 34 homozygous sickle cell (HbSS) subjects (25 in the steady state and nine in the resolving crisis state) and 50 controls (25 heterozygous sickle cell [HbAS] and 25 hemoglobin phenotype AA subjects). The hemoglobin phenotype, adiponectin levels, and full blood counts were evaluated. Anthropometric measurements were also conducted. Results: A significant difference was observed in the mean body mass index between the different hemoglobin phenotype groups and also between the SCA in crisis resolution patients and the control group (p < 0.05). There was no significant difference in the median serum levels of adiponectin in the different hemoglobin phenotype groups and between SCA patients in the steady state compared with those in the crisis resolution state. Also, there was no correlation between disease severity and adiponectin in SCA patients in the steady state (p = 0.87). Conclusion: Our study seems to suggest that in our data set of sickle cell anemia patients in the steady state, adiponectin does not constitute part of the endocrinopathy that affects these patients.
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Affiliation(s)
| | - Patrick O Manafa
- Department of Medical Laboratory Science, Faculty of Basic Medical Sciences, Nnamdi Azikiwe University, Nnewi, Nigeria
| | - Chioma Nkechinyere Igwe
- Department of Medical Laboratory Science, Faculty of Basic Medical Sciences, Nnamdi Azikiwe University, Nnewi, Nigeria
| | | | - Christian Ejike Onah
- Department of Medical Laboratory Science, Faculty of Basic Medical Sciences, Nnamdi Azikiwe University, Nnewi, Nigeria
| | - Chilota Efobi
- Haematology Department, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
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Chikani UN, Bisi-Onyemaechi A, Ohuche I, Onu J, Ugege S, Ogugua C, Mbanefo N, Chime P, Emodi I. The effect of sickle cell anemia on the linear growth of Nigerian children. J Pediatr Endocrinol Metab 2021; 34:1283-1290. [PMID: 34271599 DOI: 10.1515/jpem-2021-0232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/20/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Despite the high prevalence of children with sickle cell anaemia (SCA) in West Africa, there is paucity of data on the height velocity and prevalence of growth failure in SCA patients. With advances in clinical care of SCA patients, could there be a spatial and secular trend in the growth pattern of these children? Hence, the compelling needs to embark on this study. The objectives of the study were to determine the prevalence of growth failure among patients with SCA and its correlation with age, gender and age at diagnosis. METHODS A Prospective longitudinal study of a cohort of sickle cell anaemic paediatric patients from Pediatrics SCA Clinic, University of Nigeria Teaching Hospital, Ituku Ozalla. Patients were enrolled over a period of two years using a non-parametric convenient sampling method. Their heights were measured at baseline, three months, six months and at 12 months intervals and subsequently plotted on a standard WHO growth chart. The height velocities at different monthly intervals were calculated and compared with the WHO standard normal linear growth rates) for children (used as control) to identify those with GF. (i.e. <10th percentile). The main outcome measures were the mean height velocities at different months' intervals calculated and compared using the repeated measurement analysis of variance (ANOVA) and the Wilcoxon signed test. RESULTS A cohort of 316 children aged 1-18 years with SCA was evaluated with a male preponderance of 161 (57.4%). The mean age and age at diagnosis were 11.04 ± 5.56 and 4.2 ± 1.7 years, respectively. The prevalence of growth failure and short stature was 84.7%. The burden of GF was highest among post-pubertal participants (94.1%). The most important predictor of growth velocity deficit was age (R2=0.045, standard β coefficient = -0.22, t=-03.51, p=0.001). CONCLUSIONS The study demonstrated high prevalence of growth failure in children and adolescents with SCA which intensified with advancement in age and older age at diagnosis.
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Affiliation(s)
- Ugo Nnenna Chikani
- Department of Paediatrics, University of Nigeria Ituku Ozalla Campus, Enugu, Nigeria
| | | | - Ijeoma Ohuche
- Department of Paediatrics, University of Nigeria Ituku Ozalla Campus, Enugu, Nigeria
| | - Justus Onu
- Department of Mental Health, Nnamdi Azikiwe University, Awka, Anambra State and Federal Neuropsychiatric Hospital, Enugu, Nigeria
| | | | - Chinwe Ogugua
- Federal Teaching Hospital, Ebonyi State University, Abakaliki, Nigeria
| | - Ngozi Mbanefo
- Department of Paediatrics, University of Nigeria Ituku Ozalla Campus, Enugu, Nigeria
| | - Paschal Chime
- Department of Paediatrics, University of Nigeria Ituku Ozalla Campus, Enugu, Nigeria
| | - Ifeoma Emodi
- Department of Paediatrics, University of Nigeria Ituku Ozalla Campus, Enugu, Nigeria
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Alzahrani F, Fallatah AM, Al-Haddad FM, Khayyat ST, AlMehmadi WM, AlQahtani BG, Alamri RS. Risk Factors and Complications Among Pediatric Patients With Sickle Cell Anemia: A Single Tertiary Center Retrospective Study. Cureus 2021; 13:e12440. [PMID: 33552759 PMCID: PMC7851883 DOI: 10.7759/cureus.12440] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background and objective Sickle cell anemia (SCA) is one of the common genetic diseases in the Kingdom of Saudi Arabia (KSA). This disease results from a genetic mutation that causes malformation of the red blood cells (RBCs), leading to various systemic complications, including vaso-occlusive crisis (VOC), acute chest syndrome (ACS), osteomyelitis, avascular necrosis (AVN), and stroke, to name a few. The leading cause of mortality in SCA is these systemic complications rather than the disease itself. Understanding the risk factors of these complications can help reduce mortality in these patients and improve their quality of life. In this study, we aimed to determine the risk factors of SCA complications among pediatric patients with SCA at King Abdulaziz University Hospital (KAUH) in Jeddah, KSA. Methods This retrospective study was carried out from January 2012 till June end 2019. It was conducted among pediatric patients with SCA. Patients were screened for eligibility, and we excluded those with thalassemia and those who had a medical history of chronic diseases. Data were collected from patients' electronic medical records. Results The study included 102 pediatric patients with SCA; their mean age was 7.88 ±4.22 years; almost half of them were females (56%) and 44% were males. The dominant body mass index (BMI) classification among them was normal (49%). Urinary tract infection (UTI) was the most common complication with 38 cases followed by VOC with 32 cases. Other complications observed were ACS (25.5%) followed by stroke (15.7%). HbSS was the most prominent genotype among these patients, and it was associated with a higher rate of complications. However, there was no significant relationship between genotype and patients developing complications. Finally, patients with high white blood cell (WBC) counts, elevated systolic blood pressure (SBP), and hypoxia developed more complications, and there was a significant relationship between these conditions and the development of complications (p<0.05). Conclusion Based on our findings, patients with high WBC count, elevated SBP, and hypoxia are at greater risk of developing complications. Accordingly, healthcare providers should consider putting in place all measures required to provide a good quality of life for these patients, including raising awareness about the risk factors that lead to these complications, appropriate immunizations, and precautionary measures to promote these patients' welfare.
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Affiliation(s)
| | - Anas M Fallatah
- Medicine, College of Medicine, King Abdulaziz University, Jeddah, SAU
| | - Fatimah M Al-Haddad
- Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
| | - Shahad T Khayyat
- Medicine, College of Medicine, King Abdulaziz University, Jeddah, SAU
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Wit JM, Kamp GA, Oostdijk W. Towards a Rational and Efficient Diagnostic Approach in Children Referred for Growth Failure to the General Paediatrician. Horm Res Paediatr 2020; 91:223-240. [PMID: 31195397 DOI: 10.1159/000499915] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 03/25/2019] [Indexed: 11/19/2022] Open
Abstract
Based on a recent Dutch national guideline, we propose a structured stepwise diagnostic approach for children with growth failure (short stature and/or growth faltering), aiming at high sensitivity for pathologic causes at acceptable specificity. The first step is a detailed clinical assessment, aiming at obtaining relevant clinical clues from the medical history (including family history), physical examination (emphasising head circumference, body proportions and dysmorphic features) and assessment of the growth curve. The second step consists of screening: a radiograph of the hand and wrist (for bone age and assessment of anatomical abnormalities suggestive for a skeletal dysplasia) and laboratory tests aiming at detecting disorders that can present as isolated short stature (anaemia, growth hormone deficiency, hypothyroidism, coeliac disease, renal failure, metabolic bone diseases, renal tubular acidosis, inflammatory bowel disease, Turner syndrome [TS]). We advise molecular array analysis rather than conventional karyotyping for short girls because this detects not only TS but also copy number variants and uniparental isodisomy, increasing diagnostic yield at a lower cost. Third, in case of diagnostic clues for primary growth disorders, further specific testing for candidate genes or a hypothesis-free approach is indicated; suspicion of a secondary growth disorder warrants adequate further targeted testing.
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Affiliation(s)
- Jan M Wit
- Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands,
| | - Gerdine A Kamp
- Department of Paediatrics, Tergooi Hospital, Blaricum, The Netherlands
| | - Wilma Oostdijk
- Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands
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Nagalapuram V, Kulkarni V, Leach J, Aban I, Sirigaddi K, Lebensburger J, Iyer P. Effect of Sickle Cell Anemia Therapies on the Natural History of Growth and Puberty Patterns. J Pediatr Hematol Oncol 2019; 41:606-611. [PMID: 30951025 PMCID: PMC6776732 DOI: 10.1097/mph.0000000000001477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
As pediatric patients with sickle cell anemia (SCA) have impaired growth and puberty patterns, we studied the effect of disease-modifying therapies on growth and puberty patterns for patients with SCA receiving hydroxyurea (HU), transfusions, or no therapy. We performed a retrospective study of children with SCA in whom anthropometric measurements and therapy type were recorded. Penalized smoothing splines were fitted to estimate growth curves and growth velocity, and linear mixed models were used to examine differences across treatment groups. Across group analyses were divided into early childhood (4.0 to 7.9 y) and peripubertal (8.0 to 12.0 y). We analyzed growth data on 157 SCA patients. From 8.0 to 12.0 years, girls on transfusion therapy were significantly taller than girls on HU (range, 5.7 to 7.2 cm; P-value range 0.002 to 0.01). From 10.0 to 12.0 years, boys on transfusion therapy were significantly taller than boys on HU (range, 4.1 to 9.4 cm; P-value range <0.0001 to 0.04). In addition, boys on transfusion therapy had an earlier peak height velocity as compared with boys on either HU or no therapy. In conclusion, children receiving transfusions tended to be taller than children on HU or no therapy. Children on HU did not demonstrate superior growth pattern when compared with children on no therapy in the peripubertal years.
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Martins PRJ, De Vito FB, Resende GAD, Kerbauy J, Pereira GDA, Moraes-Souza H, Figueiredo MS, Verreschi IT. Male sickle cell patients, compensated transpubertal hypogonadism and normal final growth. Clin Endocrinol (Oxf) 2019; 91:676-682. [PMID: 31408198 DOI: 10.1111/cen.14075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 07/11/2019] [Accepted: 08/11/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Investigate the gonadal hormonal function in sickle cell individuals. CONTEXT Sickle cell disease (SCD) is associated with delayed physical and sexual development, and it has been related to both primary testicular failure and hypothalamo-pituitary-gonadal axis abnormalities. DESIGN The study of the pituitary gonadotrophin reserve was done evaluating the hormonal levels before and after stimulation by gonadoliberin. PATIENTS Male patients with homozygous SCD (18-39 years, median = 29.5 years). MEASUREMENTS Gonadal function was evaluated through clinical parameters and the hormonal quantification. RESULTS Although low body weight and other clinical signs of undernutrition such as clinical hypoandrogenism and the extreme retardation of puberty were seen in these patients, final stature and hormonal testicular reserve to hCG stimulation were proved to be normal according to our previous data. In the present investigation, the basal luteotropic gonadotropin (LH), follicle-stimulating hormone (FSH) and testosterone (T) levels were similar between the patients and controls. Prostate-specific antigen (PSA) levels-used as a biochemical marker of androgenicity, mainly in puberty-were lower in the patients than in the controls and were only correlated with T. A subtle abnormality in the pituitary responsivity to gonadotropin-releasing hormone (GnRH) was disclosed, with a higher response to LH 60 minutes after stimulation in patients than in controls. CONCLUSIONS These data, in addition to both the clinical and biochemical signs of hypoandrogenism associated with normal to elevated T levels strongly suggest a peripheral origin of hypogonadism, which is probably due to androgen resistance in the patients with SCD.
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Affiliation(s)
| | | | | | - José Kerbauy
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Mandese V, Bigi E, Bruzzi P, Palazzi G, Predieri B, Lucaccioni L, Cellini M, Iughetti L. Endocrine and metabolic complications in children and adolescents with Sickle Cell Disease: an Italian cohort study. BMC Pediatr 2019; 19:56. [PMID: 30744584 PMCID: PMC6371531 DOI: 10.1186/s12887-019-1423-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 01/30/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Children with Sickle Cell Disease (SCD) show endocrine complications and metabolic alterations. The physiopathology of these conditions is not completely understood: iron overload due to chronic transfusions, ischemic damage, and inflammatory state related to vaso-occlusive crises may be involved. Aims of this study were to evaluate the growth pattern, endocrine complications, and metabolic alterations and to detect the relationship between these conditions and the SCD severity in affected children and adolescents. METHODS Fifty-two children and adolescents with SCD [38 homozygous sickle hemoglobin (HbSS) and 14 heterozygous sickle hemoglobin (HbSC); age range 3-18 years] were recruited. Anthropometric [height, body mass index (BMI), arm span, sitting height, target height (TH), and pubertal status] and laboratory [blood cell counts, hemolysis indices, metabolic and nutritional status indices and hormonal blood levels] data were evaluated. The SCD severity was defined according to hematological and clinical parameters. RESULTS Height-SDS adjusted for TH and BMI-SDS were significantly higher in HbSC children than in HbSS ones. Forty-eight out of 52 patients (92%) had at least one metabolic and/or endocrine alteration: insufficiency/deficiency of vitamin D (84.7%), insulin resistance (11.5%), growth hormone deficiency (3.8%), subclinical hypothyroidism (3.8%), and hypogonadism (1.9%). Levels of vitamin D were significantly and negatively correlated with clinical indicators of the SCD severity. Subjects with HbSS genotype show significant lower levels of both insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein 3 than children with HbSC. In the study population IGF-1 values were significantly and positively correlated with Hb and negatively with lactate dehydrogenase. CONCLUSIONS Metabolic alterations and endocrine complications are very common in children and adolescents with SCD. A regular follow-up is necessary to identify subjects at risk for complications to precociously start an appropriate treatment and to improve the quality of life of SCD patients.
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Affiliation(s)
- V Mandese
- Post Graduate School of Pediatrics, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - E Bigi
- Oncology and Hematology Pediatric Unit Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy
| | - P Bruzzi
- Pediatric Unit, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy
| | - G Palazzi
- Oncology and Hematology Pediatric Unit Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy
| | - B Predieri
- Pediatric Unit, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy
| | - L Lucaccioni
- Post Graduate School of Pediatrics, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - M Cellini
- Oncology and Hematology Pediatric Unit Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy
| | - L Iughetti
- Post Graduate School of Pediatrics, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy. .,Oncology and Hematology Pediatric Unit Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy. .,Pediatric Unit, Department of Medical and Surgical Sciences for Mothers, Children and Adults, University of Modena and Reggio Emilia, 41124, Modena, Italy.
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Ogunsile FJ, Bediako SM, Nelson J, Cichowitz C, Yu T, Patrick Carroll C, Stewart K, Naik R, Haywood C, Lanzkron S. Metabolic syndrome among adults living with sickle cell disease. Blood Cells Mol Dis 2019; 74:25-29. [DOI: 10.1016/j.bcmd.2018.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/18/2018] [Accepted: 10/18/2018] [Indexed: 01/10/2023]
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Jesus ACDSD, Konstantyner T, Lôbo IKV, Braga JAP. SOCIOECONOMIC AND NUTRITIONAL CHARACTERISTICS OF CHILDREN AND ADOLESCENTS WITH SICKLE CELL ANEMIA: A SYSTEMATIC REVIEW. ACTA ACUST UNITED AC 2018; 36:491-499. [PMID: 30540112 PMCID: PMC6322809 DOI: 10.1590/1984-0462/;2018;36;4;00010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/22/2017] [Indexed: 02/17/2023]
Abstract
OBJECTIVE To describe the socioeconomic and nutritional characteristics of children and adolescents with sickle cell anemia. DATA SOURCES The present study is a systematic literature review based on published scientific articles. The searches were carried out using the electronic database of the National Library of Medicine, National Institutes of Health- PubMed. Two searches of articles published in the last 20years and without limitation of language were carried out. Thefirst one started from the Medical Subject Headings term "Anemia, Sickle Cell" associated with "Socioeconomic Factors"; and the second started from the term "Anemia, Sickle Cell" associated with "Anthropometry". Thesearches were directed to research conducted on humans in the age group from 0 to 18years. DATA SYNTHESIS The final selection was composed by 11 articles on socioeconomic characteristics and 21articles on nutritional characteristics. Allstudies included children and adolescents with sickle cells disease (age range 0-18years), both genders, and most of them of black ethnicity. Families of children and adolescents with sickle cell anemia were of predominantly low socioeconomic status. Parents had lower educational levels when compared to parents of healthy children and adolescents. Body measurements (weight and height) and anthropometric indicators of children with sickle cell anemia were often lower when compared to healthy groups or reference populations. CONCLUSIONS Children and adolescents with sickle cell anemia have socioeconomic limitations and worse nutritional conditions, when compared to reference populations. These limitations may lead to worse growth and greater occurrence of possible complications that can impair their quality of life.
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Affiliation(s)
| | - Tulio Konstantyner
- Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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14
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Alexandre-Heymann L, Dubert M, Diallo DA, Diop S, Tolo A, Belinga S, Sanogo I, Diagne I, Wamba G, Boidy K, Ly ID, Kamara I, Traore Y, Offredo L, Jouven X, Ranque B. Prevalence and correlates of growth failure in young African patients with sickle cell disease. Br J Haematol 2018; 184:253-262. [PMID: 30467843 DOI: 10.1111/bjh.15638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/06/2018] [Indexed: 11/30/2022]
Abstract
Growth failure (GF) in children with sickle cell disease (SCD) tends to decline in high-income countries, but data are lacking in sub-Saharan Africa. We performed a cross-sectional study nested in the CADRE (Cœur, Artères et DREpanocytose) cohort in Mali, Senegal, Cameroon, Gabon and the Ivory Coast. SCD patients and healthy controls aged 5-21 years old were recruited (n = 2583). Frequency of GF, defined as a height, weight or body mass index below the 5th percentile on World health Organization growth charts, was calculated. We assessed associations between GF and SCD phenotypic group, clinical and biological characteristics and history of SCD-related complications. GF was diagnosed in 51% of HbSS, 58% of HbSβ0 , 44% of HbSC, 38% of HbSβ+ patients and 32% of controls. GF in patients was positively associated with parents' lower education level, male sex, age 12-14 years, lower blood pressure, HbSS or HbSβ0 phenotypes, icterus, lower haemoglobin level, higher leucocyte count and microalbuminuria. No association was found between GF and clinical SCD-related complications. In sub-Saharan Africa, GF is still frequent in children with SCD, especially in males and during adolescence. GF is associated with haemolysis and microalbuminuria, but not with the history of SCD-related clinical complications.
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Affiliation(s)
- Laure Alexandre-Heymann
- Internal Medicine Unit, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Marie Dubert
- Internal Medicine Unit, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris, Paris, France.,UMR_S970, Université Paris Descartes, Inserm, Paris, France
| | - Dapa A Diallo
- Centre de Recherche et Lutte contre la Drépanocytose, Bamako, Mali
| | - Saliou Diop
- Centre National de Transfusion Sanguine, Dakar, Senegal
| | - Aissata Tolo
- Haematology Unit, CHU de Yopougon, Abidjan, Ivory Coast
| | | | | | | | - Guillaume Wamba
- Pediatrics Unit, Centre Hospitalier d'Essos, Yaoundé, Cameroon
| | - Kouakou Boidy
- Centre National de Transfusion Sanguine, Dakar, Senegal
| | | | - Ismaël Kamara
- Centre National de Transfusion Sanguine, Dakar, Senegal
| | | | - Lucile Offredo
- UMR_S970, Université Paris Descartes, Inserm, Paris, France
| | - Xavier Jouven
- UMR_S970, Université Paris Descartes, Inserm, Paris, France.,Cardiology Unit, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Brigitte Ranque
- Internal Medicine Unit, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris, Paris, France.,UMR_S970, Université Paris Descartes, Inserm, Paris, France
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15
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Hall R, Gardner K, Rees DC, Chakravorty S. High body mass index in children with sickle cell disease: a retrospective single-centre audit. BMJ Paediatr Open 2018; 2:e000302. [PMID: 30397666 PMCID: PMC6202990 DOI: 10.1136/bmjpo-2018-000302] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/15/2018] [Accepted: 09/12/2018] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE To assess the prevalence of high body mass index (BMI) in children with sickle cell disease and assess correlation between BMI and disease severity. DESIGN Retrospective chart review followed by statistical analysis. SETTING A single tertiary paediatric clinic in inner city London. PATIENTS All patients with sickle cell disease, including homozygous haemoglobin (HbSS) and compound heterozygous Hb (HbSC), age 2-18 years receiving clinical care at the centre, were included in the study. INTERVENTIONS Height and weight measurements, steady-state laboratory blood tests, hospital admission rates, adjunct therapy such as hydroxycarbamide or blood transfusions and obstructive sleep apnoea (OSA) data were obtained from the hospital electronic patient records. MAIN OUTCOME MEASURES To study the prevalence of high BMI and to identify any correlation between BMI and disease severity. RESULTS 385 patients were included. 64 children (17%) were overweight or obese, of which a significantly higher number of children with HbSC were obese or overweight (23 out of 91, 25%) compared with those with HbSS (36 out of 273, 13%), p≤0.001. No correlation was found between high BMI and presence of OSA, and markers of disease severity such as admission rates, fetal haemoglobin or lactate dehydrogenase levels. CONCLUSIONS High BMI did not correlate with disease severity in this cohort of patients with sickle cell disease. Obesity was more prevalent in females and those with HbSC. Further prospective studies are needed to determine long-term effects of BMI in disease severity and outcome.
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Affiliation(s)
- Rachael Hall
- Department of Haematology, Imperial College London, London, UK
| | - Kate Gardner
- Department of Haematological Medicine, King's College London, London, UK
| | - David C Rees
- Department of Haematological Medicine, King's College London, London, UK.,Department of Paediatric Haematology, King's College Hospital, London, UK
| | - Subarna Chakravorty
- Department of Haematological Medicine, King's College London, London, UK.,Department of Paediatric Haematology, King's College Hospital, London, UK
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16
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Tammara BK, Harnisch LO. Dose Selection Based on Modeling and Simulation for Rivipansel in Pediatric Patients Aged 6 to 11 Years With Sickle Cell Disease. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2017; 6:845-854. [PMID: 29115052 PMCID: PMC5744176 DOI: 10.1002/psp4.12263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This modeling and simulation exercise aimed to provide dosing recommendations for rivipansel phase III studies in children aged 6–11 years with sickle cell disease (SCD). Pharmacokinetic data from 109 patients aged 12–51 years who received rivipansel (2–40 mg/kg) in previous studies (three phase I and one phase II) were integrated to build a three‐compartmental simulation model. Renal clearance simulations across the age range accounted for renal function development and postulated hyperfiltration in SCD. Simulated demographic distributions for the pediatric SCD population were used to predict concentration‐time profiles from three dosing regimens, which were then compared against efficacious average steady‐state concentrations observed in phase II. A dosing regimen comprising a 40‐mg/kg loading dose followed by a 20‐mg/kg maintenance dose every 12 hours was selected, as it will likely provide an efficacious concentration range. Its validity will be confirmed in the ongoing phase III study.
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17
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Garadah TS, Jaradat AA, Alalawi ME, Hassan AB. Hormonal and echocardiographic abnormalities in adult patients with sickle-cell anemia in Bahrain. J Blood Med 2016; 7:283-289. [PMID: 28008293 PMCID: PMC5167463 DOI: 10.2147/jbm.s124426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Adrenal, thyroid, and parathyroid gland hormonal changes are recognized in children with homozygous (HbSS) sickle-cell anemia (SCA), but are not clear in adult patients with SCA. AIM To assess the metabolic and endocrine abnormalities in adult patients with SCA and evaluate left ventricular (LV) systolic and diastolic functions compared with patients with no SCA and further study the relationship between serum levels of cortisol, free thyroxine (T4), and testosterone with serum ferritin. MATERIALS AND METHODS The study was conducted on 82 patients with adult HbSS SCA compared with a sex- and age-matched control group. The serum levels of cortisol, parathyroid hormone (PTH), testosterone, thyroid-stimulating hormone (TSH), and free T4 were compared. Blood levels of hemoglobin, reticulocyte count, lactate dehydrogenase (LDH), calcium, alkaline phosphatase (ALP), vitamin D3, and ferritin were also compared. Pulsed Doppler echo was performed to evaluate the LV mass, wall thickness, and cavity dimensions with diastolic filling velocities of early (E) and atria (A) waves. Biometric data were analyzed as mean ± standard deviation between the two groups. Multiple regression analysis was performed between serum levels of ferritin as independent variable and testosterone, cortisol, and thyroid hormones. RESULTS A total of 82 adult patients with HbSS SCA were enrolled who had a mean age of 21±5.7 years, with 51 males (62%). Patients with SCA compared with the control group had significantly lower hemoglobin, body mass index, cortisol, vitamin D3, testosterone, and T4. Furthermore, there were significantly high levels of reticulocyte count, PTH, TSH, ferritin, LDH, ALP, and uric acid. The incidence of subclinical hypothyroidism and adrenal insufficiency was 7% and 4.8%, respectively, with hypogonadism 9.8% and vitamin D3 deficiency 61%. There were inverse relationships between ferritin as independent variable and serum levels of testosterone, T4, and cortisol, with regression coefficients of -0.49 (P<0.001), -0.33 (P<0.001), and -0.11 (P<0.92), respectively. CONCLUSION Patients with adult SCA had a high prevalence of in vivo hypoadrenialism (4.8%), hypogonadism (9.8%), and hypothyroidism (7%). There were significant inverse relationships between serum ferritin as independent variable and cortisol, testosterone, and T4. Pulsed Doppler echocardiography showed increased LV mass, with a restrictive LV diastolic pattern suggestive of diastolic dysfunction.
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Affiliation(s)
- Taysir S Garadah
- Cardiac Unit, Salmaniya Medical Complex, Ministry of Health; Department of Internal Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Manama
| | - Ahmed A Jaradat
- Department of Family and Community Medicine, Arabian Gulf University, Manama, Bahrain
| | | | - Adla B Hassan
- Department of Internal Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Manama
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18
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Bismarck Eke C, Onyeka Edelu B, Nnaemeka Ikefuna A, Josephine Emodi I, Chidozie Ibe B. Obesity in Preschool-Aged Children with Sickle Cell Anemia: Emerging Nutritional Challenge in a Resource Limited Setting. Pediatr Hematol Oncol 2016; 32:390-8. [PMID: 26154621 DOI: 10.3109/08880018.2015.1030716] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The burden of childhood obesity is increasing in most developing countries particularly in the urban areas owing to globalization; and children with sickle cell anemia (SCA) in such environment do not live in isolation. The study is aimed at determining the prevalence of obesity in younger children with SCA. METHODS A consecutive recruitment of 58 children with SCA aged between 1 year and 5 years 4 months (subjects) and their age and sex matched controls selected using multistage sampling technique were carried out. The weight and height of the children were obtained using standard equipment. The WHO Anthro and Anthro-Plus software were used for analyzing the nutritional status of the children based on standard deviation (z-scores). The data were analyzed using SPSS version 19.0 while the level of significance was set at p < 0.05. RESULTS The mean BMI for the subjects was 15.38 ± 1.93 (range from 11.50-20.80) and 17.10 ± 2.28 (range from 13.4-23.20) in the controls. Overweight (z-score > + 1 ≤ 2) and obesity (z score >+2) were recorded in 10 (17.2%) and 2 (3.4%) of the subjects while in the controls overweight and obesity were observed in 16 (27.6%) and 13 (22.4%), respectively (p = 0.000). CONCLUSIONS Obesity and overweight is becoming prevalent among children with SCA and so awareness and preventive health education about obesity should be created among caregivers of children with sickle cell anemia in our setting to avert its possible complications.
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Affiliation(s)
- Christopher Bismarck Eke
- a Department of Paediatrics, College of Medicine , University of Nigeria/University of Nigeria, Teaching Hospital Ituku-Ozalla , Enugu , Nigeria
| | - Benedict Onyeka Edelu
- a Department of Paediatrics, College of Medicine , University of Nigeria/University of Nigeria, Teaching Hospital Ituku-Ozalla , Enugu , Nigeria
| | - Anthony Nnaemeka Ikefuna
- a Department of Paediatrics, College of Medicine , University of Nigeria/University of Nigeria, Teaching Hospital Ituku-Ozalla , Enugu , Nigeria
| | - Ifeoma Josephine Emodi
- a Department of Paediatrics, College of Medicine , University of Nigeria/University of Nigeria, Teaching Hospital Ituku-Ozalla , Enugu , Nigeria
| | - Bede Chidozie Ibe
- a Department of Paediatrics, College of Medicine , University of Nigeria/University of Nigeria, Teaching Hospital Ituku-Ozalla , Enugu , Nigeria
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19
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Odetunde OI, Chinawa JM, Achigbu KI, Achigbu EO. Body mass index and other anthropometric variables in children with sickle cell anaemia. Pak J Med Sci 2016; 32:341-6. [PMID: 27182236 PMCID: PMC4859019 DOI: 10.12669/pjms.322.9046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: The objectives of this study were to determine the anthropometric variables of children with sickle cell anaemia and comparing it with those with normal haemoglobin genotype. Methods: A cross sectional study of anthropometric measurements was conducted over a period of six months. Children with sickle cell anaemia in steady state aged between 6-20 years were recruited. Nutritional assessment was done using anthropometrical variables. Data were analyzed using the Statistical Package for Social Sciences program (SPSS), version 20. Results: The sickle cell patients comprised of 20 males and 20 females. There were an equal number of controls with an equal male to female ratio of 1:1. Forty eight percent (19) of the children with sickle cell anemia were underweight (< 5th %ile) and this is statistically significant. χ2=18.02 and p=0.000. When compared with subjects with normal haemoglobin genotype only five of them (13%) were underweight. χ2=10.286 and p=0.001. The controls weighed significantly more than the HbSS patients and also had significantly larger body surface compared to the HbSS population (P<0.05). Conclusion: BMI and other anthropometric variables among children with sickle cell anemia were low when compared with children with normal Haemoglobin genotype.
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Affiliation(s)
- Odutola Israel Odetunde
- Dr. Odutola Israel Odetunde, Pediatric Nephrology Unit, Department of Pediatrics, University of Nigeria Teaching Hospital, UNTH, Ituku Ozalla, Enugu, PMB 01129, Ituku - Ozalla, Enugu State, Nigeria
| | - Josephat Maduabuchi Chinawa
- Dr. Josephat Maduabuchi Chinawa, Pediatric Cardiology Unit, Department of Pediatrics, University of Nigeria Teaching Hospital, UNTH, Ituku Ozalla, Enugu, PMB 01129, Ituku - Ozalla, Enugu State, Nigeria
| | - Kingsley Ihedioha Achigbu
- Dr. Kingsley Ihedioha Achigbu, Department of Pediatric, Federal Medical Centre, Owerri, Imo State, Nigeria
| | - Eberechukwu O Achigbu
- Dr. Eberechukwu O Achigbu, Department of Ophthalmology, Federal Medical Centre, Owerri, Imo State, Nigeria
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20
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Esezobor CI, Akintan P, Akinsulie A, Temiye E, Adeyemo T. Wasting and stunting are still prevalent in children with sickle cell anaemia in Lagos, Nigeria. Ital J Pediatr 2016; 42:45. [PMID: 27146866 PMCID: PMC4857256 DOI: 10.1186/s13052-016-0257-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/27/2016] [Indexed: 11/20/2022] Open
Abstract
Background Sickle cell anaemia (SCA) is associated with growth failure. However, recent reports indicate high rates of overweight or obesity among children with SCA in developed countries. It is unclear whether overweight or obesity is also common in children with SCA in developing countries. The objectives of the study were to determine the prevalence of overweight or obesity, wasting and stunting and identify predictors of wasting and stunting among children with SCA in Nigeria. Method Children with SCA attending a public-funded tertiary hospital clinic were studied. Weight, height, haemoglobin, haemoglobin fractions and white cell count were measured. Anthropometric values were converted to z scores and referenced to the WHO Child Growth Standards and WHO Reference 2007. The proportions with wasting, stunting and overweight or obesity were determined. Regression analysis was used to identify the predictors of wasting and stunting. Results Two hundred and thirty-three children [mean (±SD) age of 9.0 (±4.0) years, 60.9 % males] participated in the study. Wasting, stunting and overweight or obesity rates were 22.7 %, 11.6 % and 1.7 %, respectively. Boys and children from low socioeconomic class were 3.25 (1.45-7.29) and 2.42 (1.14-5.18) times more likely to be wasted respectively, while both wasting and stunting were more common with increasing age [adjusted OR of 1.33 (1.18-1.51) and 1.15 (1.01-1.32) respectively]. Sickle cell-related complications and intake of oral penicillin and hydroxyurea were not associated with wasting and stunting. Conclusion Overweight or obesity is uncommon while wasting and stunting are still prevalent in children with SCA in Lagos. The strongest predictors of wasting and stunting were older age, male gender and low socioeconomic status.
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Affiliation(s)
- Christopher I Esezobor
- Department of Paediatrics, College of Medicine, University of Lagos, P.M.B 12003, Lagos, Nigeria. .,Department of Paediatrics, Lagos University Teaching Hospital, Lagos, Nigeria.
| | - Patricia Akintan
- Department of Paediatrics, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Adebola Akinsulie
- Department of Paediatrics, College of Medicine, University of Lagos, P.M.B 12003, Lagos, Nigeria.,Department of Paediatrics, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Edamisan Temiye
- Department of Paediatrics, College of Medicine, University of Lagos, P.M.B 12003, Lagos, Nigeria.,Department of Paediatrics, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Titilope Adeyemo
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria.,Department of Haematology and Blood Transfusion, Lagos University Teaching Hospital, Lagos, Nigeria
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21
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Hagag AA, El-Farargy MS, Elrefaey S, Abo El-enein AM. Study of gonadal hormones in Egyptian female children with sickle cell anemia in correlation with iron overload: Single center study. Hematol Oncol Stem Cell Ther 2015; 9:1-7. [PMID: 26684919 DOI: 10.1016/j.hemonc.2015.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/05/2015] [Accepted: 11/14/2015] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE/BACKGROUND Sickle cell disease is a hereditary hemoglobinopathy characterized by abnormal hemoglobin production, hemolytic anemia, and intermittent occlusion of small blood vessels, leading to tissue ischemia, chronic organ damage, and organ dysfunction including endocrine organs. The aim of this work was to evaluate some gonadal hormones in female children with sickle cell anemia (SCA) in correlation with iron overload. METHODS This study was conducted on 40 female children with SCA with a serum ferritin of > 1000ng/mL, who were attendants at the Hematology Unit, Pediatric Department, Tanta University, Tanta, Egypt in the period from May 2012 to April 2014. Their ages ranged from 11 years to 15years and the mean age value was 12.63±1.36 years (Group I). Forty female children with SCA of matched age with no iron overload served as a control Group (Group II). For all patients in Groups I and II the following were performed/assessed: complete blood count, hemoglobin electrophoresis, serum iron status, serum estrogen, luteinizing hormone (LH), and follicle-stimulating hormone (FSH). RESULTS There were significantly higher serum ferritin and serum iron levels and significantly lower total iron binding capacity, FSH, LH, and estrogen levels in Group I compared with Group II (mean serum ferritin was 2635.1±918.9 in Group I vs. 292.55±107.2 in Group II with a p value of .001; mean serum iron was 196.3±55.6 in Group I vs. 120±16.57 in Group II with a p value of .001 and mean serum total iron binding capacity was 247.3±28.6 in Group I vs. 327.8.7±21.96 in Group II with a p value of .001; mean FSH level was 1.36±0.22mIU/mL in Group I vs. 2.64±0.81mIU/mL in Group II with a p value of .021; mean LH level was 0.11±0.006mIU/mL in Group I vs. 1.78±1.12mIU/mL in Group II with a p value of .003; mean estrogen level was 21.45±10.23pg/mL in Group I vs. 42.36±15.44pg/mL in Group II with a p value of 0.001) with significant negative correlation between serum gonadal hormones and serum ferritin (r=- .835 and p value of .01 for FSH and serum ferritin; r=- .597 and a p value of .01 for LH and serum ferritin; and r=- 0.624 and p value of .01 for estrogen and serum ferritin. CONCLUSION Female patients with SCA with iron overload may have gonadal hormone deficiency with significant negative correlations between gonadal hormones including FSH, LH, estrogen, and serum ferritin. Recommendations include regular iron chelation for prevention of irreversible damage of the ovaries and attaining normal sexual maturation, and regular follow up for females with SCA with assessment of puberty as they are more vulnerable to develop hypogonadism and may require hormonal replacement therapy.
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Affiliation(s)
- Adel A Hagag
- Department of Pediatrics, Faculty of Medicine, Tanta University, Egypt.
| | | | - Shaymaa Elrefaey
- Department of Pediatrics, Faculty of Medicine, Tanta University, Egypt
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22
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Crosby LE, Joffe NE, Irwin MK, Strong H, Peugh J, Shook L, Kalinyak KA, Mitchell MJ. School Performance and Disease Interference in Adolescents with Sickle Cell Disease. ACTA ACUST UNITED AC 2015; 34:14-30. [PMID: 27547816 DOI: 10.14434/pders.v34i1.13918] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sickle cell disease (SCD) results in neuropsychological complications that place adolescents at higher risk for limited educational achievement. A first step to developing effective educational interventions is to understand the impact of SCD on school performance. The current study assessed perceptions of school performance, SCD interference and acceptability of educational support strategies in adolescents with SCD. To identify potential risk factors, the relationship between school performance, SCD interference and demographics were also examined. Thirty adolescents aged 12 to 20 completed demographics and SCD school performance questionnaires. Approximately 37% of participants reported receiving special education services, but more than 60% reported that SCD interfered with their school performance. Females reported that SCD impacted their schooling more than males (X2 (1, N = 30) = 5.00, p < .05). Study findings provide important insights into demographic risk factors and support the need for individualized health and educational plans for adolescents with SCD.
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Affiliation(s)
- Lori E Crosby
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | - Naomi E Joffe
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | | | - Heather Strong
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | - James Peugh
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | - Lisa Shook
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | - Karen A Kalinyak
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
| | - Monica J Mitchell
- Cincinnati Children's Hospital Medical Center & University of Cincinnati College of Medicine
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23
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Wolf RB, Saville BR, Roberts DO, Fissell RB, Kassim AA, Airewele G, DeBaun MR. Factors associated with growth and blood pressure patterns in children with sickle cell anemia: Silent Cerebral Infarct Multi-Center Clinical Trial cohort. Am J Hematol 2015; 90:2-7. [PMID: 25236783 DOI: 10.1002/ajh.23854] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 11/12/2022]
Abstract
Individuals with sickle cell anemia (SCA) exhibit delayed growth trajectories and lower blood pressure (BP) measurements than individuals without SCA. We evaluated factors associated with height, weight, and BP and established reference growth curves and BP tables using data from the Silent Cerebral Infarct Multi-Center Clinical (SIT) Trial (NCT00072761). Quantile regression models were used to determine the percentiles of growth and BP measurements. Multivariable quantile regression was used to test associations of baseline variables with height, weight, and BP measurements. Height and weight measurements were collected from a total of 949 participants with median age of 10.5 years [Interquartile range (IQR) 8.2-12.9] and median follow-up time of 3.2 years (IQR 1.8-4.7, range 0-12.9). Serial BP measurements were collected from a total of 944 and 943 participants, respectively, with median age of 10.6 years (IQR = 8.3-12.9 years), and median follow-up time of 3.3 years (IQR = 1.7-4.8). Multivariable quantile regression analysis revealed that higher hemoglobin measurements at baseline were associated with greater height (P < 0.001), weight (P = 0.000), systolic BP (P < 0.001), and diastolic BP (P = 0.003) measurements. We now provide new reference values for height, weight, and BP measurements that are now readily available for medical management.
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Affiliation(s)
- Rachel B. Wolf
- Vanderbilt University School of Medicine; Nashville; Tennessee
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24
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Puffer ES, Schatz JC, Roberts CW. Association between somatic growth trajectory and cognitive functioning in young children with sickle cell disease. J Health Psychol 2014; 21:1620-9. [PMID: 25488939 DOI: 10.1177/1359105314559861] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Children with sickle cell disease are at risk of cognitive deficits and somatic growth delays beginning in early childhood. We examined growth velocity from age 2 years (height and body mass index progression over time) and cognitive functioning in 46 children with sickle cell disease 4 to 8 years of age. Height-for-age velocity was not associated with cognitive outcomes. Higher body mass index velocity was associated with higher scores on global cognitive and visual-motor abilities but not processing resources or academic achievement. Body mass index progression over time may be a clinically useful indicator of neurocognitive risk in sickle cell disease, as it may reflect multiple sickle cell disease-related risk factors.
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Affiliation(s)
- Eve S Puffer
- University of South Carolina, USA Duke University, USA
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Martins PRJ, Kerbauy J, Moraes-Souza H, Pereira GDA, Figueiredo MS, Verreschi IT. Impaired pubertal development and testicular hormone function in males with sickle cell anemia. Blood Cells Mol Dis 2014; 54:29-32. [PMID: 25190051 DOI: 10.1016/j.bcmd.2014.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 08/11/2014] [Accepted: 08/11/2014] [Indexed: 11/29/2022]
Abstract
Changes in weight/height ratio, delayed sexual maturation, hypogonadism and impaired fertility have been demonstrated in sickle cell disease (SCD). This study aimed to evaluate the clinical and laboratory views of the Leydig cells function after stimulation with hCG in adults with sickle cell disease. We studied 15 patients with SCD (18 to 40 years; median=27 years old), fourteen homozygous S, and one with SC disease. The control group, composed by adult males, was divided into two groups: I - 10 relatives (18-39 years, median=26 years) with the same socioeconomic level of the patients, and II - 9 normal individuals (23-28, median=31 years) randomly chosen. Clinically it was observed a slight degree of malnutrition, important puberty delay, rarefaction of chest, underarm and pubic hair, and important reduction of the testis and penis size, featuring a mild hypogonadism in patients with SCD. The hormonal level assessment of testosterone at baseline and at 24, 48 and 72 h after hCG stimulation showed no significant differences between the groups studied. We can presume that adult men with SCD showed clinical hypoandrogenism with normal testicular hormonal function, a fact inconsistent with the hypothesis of primary hypogonadism.
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Affiliation(s)
| | - José Kerbauy
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Helio Moraes-Souza
- Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
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Rana S, Houston PE, Wang WC, Iyer RV, Goldsmith J, Casella JF, Reed CK, Rogers ZR, Waclawiw MA, Thompson B. Hydroxyurea and growth in young children with sickle cell disease. Pediatrics 2014; 134:465-72. [PMID: 25157002 PMCID: PMC4144002 DOI: 10.1542/peds.2014-0917] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/19/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Growth impairment is a known complication of sickle cell disease. Effects of hydroxyurea (HU) on growth in very young children are not known. METHODS Height, weight, BMI, and head circumference (HC) were compared with World Health Organization (WHO) standards in BABY HUG, a multicenter, randomized, double-blinded, placebo-controlled 2-year clinical trial of HU in 193 children 9 to 18 months of age. Anthropometric data were closely monitored and converted to z scores by using WHO standardized algorithms for descriptive analyses. The treatment and placebo groups were compared longitudinally by using a mixed model analysis. RESULTS At entry, the z scores of BABY HUG children were higher than WHO norms. After 2 years of HU or placebo treatment, there were no significant differences between the groups, except for the mean HC z scores at study exit (HU: +0.8 versus placebo: +1.0, P = .05). Baseline z scores were the best predictors of z scores at study exit. The absolute neutrophil count, absolute reticulocyte count, and total white blood cell count had significant negative correlations with growth measures. CONCLUSIONS Both groups had normal or near normal anthropometric measures during the study. The HC z scores at study entry and exit were slightly greater than WHO norms. Higher baseline white blood cell count, absolute reticulocyte count, and absolute neutrophil count were associated with poorer growth. The significance of the slightly lower HC in the treatment group at study exit is not clear. Trends toward normalization of weight and height and effects on HC will be monitored in ongoing BABY HUG follow-up studies.
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Affiliation(s)
- Sohail Rana
- Department of Pediatrics and Child Health, Howard University, Washington, District of Columbia;
| | - Patricia E Houston
- Department of Pediatrics and Child Health, Howard University, Washington, District of Columbia
| | - Winfred C Wang
- St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Rathi V Iyer
- University of Mississippi Medical Center, Jackson, Mississippi
| | | | - James F Casella
- Division of Hematology, Department of Pediatrics, Johns Hopkins University, Baltimore, Maryland
| | - Caroline K Reed
- Department of Pediatrics and Child Health, Howard University, Washington, District of Columbia
| | | | | | - Bruce Thompson
- Clinical Trials & Surveys Corporation, Owings Mills, Maryland
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Chawla A, Sprinz PG, Welch J, Heeney M, Usmani N, Pashankar F, Kavanagh P. Weight status of children with sickle cell disease. Pediatrics 2013; 131:e1168-73. [PMID: 23460681 DOI: 10.1542/peds.2012-2225] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Historically, many children and adolescents with sickle cell disease (SCD) were underweight. Treatment advances like hydroxyurea have been associated with improved growth. We hypothesized that increased hemoglobin (Hb) levels would be associated with increased weight status of children with SCD. METHODS Investigators at 6 institutions conducted a retrospective chart review of all patients aged 2 to 19 years of age for the calendar years 2007-2009. Height, weight, baseline Hb levels, demographic information, and select comorbidities were recorded from the most recent clinic visit. Overweight and obesity were defined as ≥85th and ≥95th BMI percentiles for age and gender, respectively, and underweight was defined as <5th BMI percentile. RESULTS Data were collected on 675 children and adolescents in 3 New England states. In this sample, 22.4% were overweight or obese, whereas only 6.7% were underweight. Overweight or obese status was associated with sickle genotypes other than Hb SS or Hb Sβ(0) disease, and were associated with higher baseline Hb levels. Underweight individuals were more likely to be male, older, and have had at least 1 SCD-related complication. After adjusting for demographic factors, any SCD-related complication, SCD-directed treatments, and obesity-related conditions, there was a 36% increased odds of overweight/obesity for each 1 g/dL increase in baseline Hb levels. CONCLUSIONS Nearly one-quarter of children and adolescents with SCD in New England are overweight or obese. Longitudinal studies are needed to determine the impact of elevated BMI on the morbidity and mortality of both children and adults with SCD.
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Affiliation(s)
- Anjulika Chawla
- Division of Pediatric Hematology/Oncology, Warren Alpert Medical School of Brown University/Hasbro Children's Hospital, 593 Eddy St, Providence, RI 02903, USA.
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Wang CJ, Kavanagh PL, Little AA, Holliman JB, Sprinz PG. Quality-of-care indicators for children with sickle cell disease. Pediatrics 2011; 128:484-93. [PMID: 21844055 DOI: 10.1542/peds.2010-1791] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To develop a set of quality-of-care indicators for the management of children with sickle cell disease (SCD) who are cared for in a variety of settings by addressing the broad spectrum of complications relevant to their illness. METHODS We used the Rand/University of California Los Angeles appropriateness method, a modified Delphi method, to develop the indicators. The process included a comprehensive literature review with ratings of the evidence and 2 rounds of anonymous ratings by an expert panel (nominated by leaders of various US academic societies and the National Heart, Lung, and Blood Institute). The panelists met face-to-face to discuss each indicator in between the 2 rounds. RESULTS The panel recommended 41 indicators that cover 18 topics; 17 indicators described routine health care maintenance, 15 described acute or subacute care, and 9 described chronic care. The panel identified 8 indicators most likely to have a large positive effect on improving quality of life and/or health outcomes for children with SCD, which covered 6 topics: timely assessment and treatment of pain and fever; comprehensive planning; penicillin prophylaxis; transfusion; and the transition to adult care. CONCLUSIONS Children with SCD are at risk for serious morbidities and early mortality, yet efforts to assess and improve the quality of their care have been limited compared with other chronic childhood conditions. This set of 41 indicators can be used to assess quality of care and provide a starting point for quality-improvement efforts.
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Affiliation(s)
- C Jason Wang
- Department of Pediatrics, Boston University School of Medicine, Boston, Massachusetts, USA.
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Qamra S, Roy J, Srivastava P. Impact of sickle cell trait on physical growth in tribal children of Mandla district in Madhya Pradesh, India. Ann Hum Biol 2011; 38:685-90. [PMID: 21864082 DOI: 10.3109/03014460.2011.608378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Reliable reports on growth impairment in sickle cell trait (SCT) children in India are lacking despite contradictory findings reported earlier. AIM The present study assessed the impact of SCT on physical growth of tribal children of Mandla district. SUBJECTS AND METHODS Weight, height, circumferences, breadths, lengths and skinfolds were recorded on 6190 children, inclusive of 732 SCT children, from birth to 12 years of age using a cross-sectional design. The sickle test was conducted in the field using 2% sodium metabisulphite followed by electrophoresis. RESULTS No significant difference in mean values was observed in the majority of the age groups between SCT and normal children for all 11 body measurements. However, inconsistent growth patterns in these measurements among SCT children were evident. Body weight was more deficient than height or other body measurements in the children when compared to Indian and National Centre for Health Statistics (NCHS) standards, while bicristal breadth was comparable with Indian standards. CONCLUSIONS There was no significant impact of SCT observed on growth of children irrespective of sex. Notably, growth of SCT girls was comparable to their normal counterparts. The actual growth difference between normal and SCT children may have been masked on account of poor attainment of annual gain in each successive age group.
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Affiliation(s)
- Suneel Qamra
- Regional Medical Research Centre for Tribals, Jabalpur-482 003, Madhya Pradesh, India.
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Cox SE, Makani J, Fulford AJ, Komba AN, Soka D, Williams TN, Newton CR, Marsh K, Prentice AM. Nutritional status, hospitalization and mortality among patients with sickle cell anemia in Tanzania. Haematologica 2011; 96:948-53. [PMID: 21459787 DOI: 10.3324/haematol.2010.028167] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Reduced growth is common in children with sickle cell anemia, but few data exist on associations with long-term clinical course. Our objective was to determine the prevalence of malnutrition at enrollment into a hospital-based cohort and whether poor nutritional status predicted morbidity and mortality within an urban cohort of Tanzanian sickle cell anemia patients. DESIGN AND METHODS Anthropometry was conducted at enrollment into the sickle cell anemia cohort (n=1,618; ages 0.5-48 years) and in controls who attended screening (siblings, walk-ins and referrals) but who were found not to have sickle cell anemia (n=717; ages 0.5-64 years). Prospective surveillance recorded hospitalization at Muhimbili National Hospital and mortality between March 2004 and September 2009. RESULTS Sickle cell anemia was associated with stunting (OR=1.92, P<0.001, 36.2%) and wasting (OR=1.66, P=0.002, 18.4%). The greatest growth deficits were observed in adolescents and in boys. Independent of age and sex, lower hemoglobin concentration was associated with increased odds of malnutrition in sickle cell patients. Of the 1,041 sickle cell anemia patients with a body mass index z-score at enrollment, 92% were followed up until September 2009 (n=908) or death (n=50). Body mass index and weight-for-age z-score predicted hospitalization (hazard ratio [HZR]=0.90, P=0.04 and HZR=0.88, P=0.02) but height-for-age z-score did not (HZR=0.93, NS). The mortality rate of 2.5 per 100 person-years was not associated with any of the anthropometric measures. CONCLUSIONS In this non-birth-cohort of sickle cell anemia with significant associated undernutrition, wasting predicted an increased risk of hospital admission. Targeted nutritional interventions should prioritize treatment and prevention of wasting.
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Affiliation(s)
- Sharon E Cox
- Department of Haematology and Blood Transfusion, Muhimbili University of Health and Allied Sciences, PO Box 65001, Dar-es-Salaam, Tanzania.
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Al-Saqladi AWM, Bin-Gadeen HA, Brabin BJ. Growth in children and adolescents with sickle cell disease in Yemen. ACTA ACUST UNITED AC 2011; 30:287-98. [PMID: 21118622 DOI: 10.1179/146532810x12858955921113] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Physical growth is known to be impaired in children with sickle cell disease (SCD) and the prevalence and severity vary with geographical location. The factors which contribute to this sub-optimal growth are poorly understood. OBJECTIVES To describe the growth status of children and adolescents with SCD in Yemen using the new WHO reference values and to assess correlation of growth indicators with disease severity and with haematological and biochemical parameters. METHODS A cross-sectional study of children <16 years with SCD was conducted at Al-Wahda General Teaching Hospital, Aden. Anthropometric measurements of weight, length/height, mid-upper-arm circumference (MUAC) and body mass index (BMI) were collected. Disease severity was assessed using a severity index (SI) score. RESULTS A total of 102 children (56 male) were included and their mean age was 7.2 years (range 6 months to 15 years). Low weight, height and BMI-for-age Z-scores (<-2 SD) were observed in 45%, 54% and 35% of children, respectively. Regression analyses indicated an association of low height-for-age with male gender (p=0.02), low weight-for-age and weight-for-height with increased age (both p<0.001), low weight-for-age with raised alkaline phosphatase (p=0.04), and low BMI with reduced plasma albumin (p=0.04). There was no correlation between growth deficits and SI or anaemia severity. CONCLUSION Growth is severely impaired in children and adolescents with SCD in Yemen. Growth monitoring and nutritional support should be included in their comprehensive care package.
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Puffer ES, Schatz JC, Roberts CW. Relationships between Somatic Growth and Cognitive Functioning in Young Children with Sickle Cell Disease. J Pediatr Psychol 2009; 35:892-904. [DOI: 10.1093/jpepsy/jsp124] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Rhodes M, Akohoue SA, Shankar SM, Fleming I, An A, Yu C, Acra S, Buchowski MS. Growth patterns in children with sickle cell anemia during puberty. Pediatr Blood Cancer 2009; 53:635-41. [PMID: 19544390 PMCID: PMC2733167 DOI: 10.1002/pbc.22137] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Previous studies of children with homozygous sickle cell anemia (SCA) show impaired growth and maturation. The correlation of this suboptimal growth with metabolic and hematological factors during puberty is poorly understood. PROCEDURE We studied a group of pre-adolescent children with SCA (19 males, 14 females) and healthy controls (16 males, 15 females) matched for race, sex, body size, and pubertal development. Height, weight, body mass index (BMI), and body composition changes were longitudinally assessed over a 2-year period and compared between the groups and with Z scores based on US growth charts. These changes were correlated with hemoglobin (Hgb) concentration and with energy expenditure (EE) measured using indirect whole-room calorimetry. RESULTS Children with SCA progressed through puberty slower than control children. While, after 2 years, pubertal males with SCA were shorter, their annual increases in weight were not different from controls. The mean fat free mass (FFM) increments were significantly less in males and females with SCA than in control children. In males with SCA, growth in height declined over time and was significantly slower than in matched controls (P < 0.05). CONCLUSION Growth delays were present during puberty in children with SCA. Decreased growth velocity in children with SCA was independently associated with decreased Hgb concentration and increased total EE.
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Affiliation(s)
- Melissa Rhodes
- Department of Pediatrics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232
| | - Sylvie A. Akohoue
- Department of Family and Community Medicine, Meharry Medical College, 1005 D.B. Todd Blvd., Nashville, TN 37208
| | - Sadhna M. Shankar
- Department of Pediatrics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232
| | - Irma Fleming
- Department of Family and Community Medicine, Meharry Medical College, 1005 D.B. Todd Blvd., Nashville, TN 37208
| | - Angel An
- Department of Biostatistics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232
| | - Chung Yu
- Department of Biostatistics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232
| | - Sari Acra
- Department of Pediatrics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232
| | - Maciej S. Buchowski
- Department of Medicine, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232,Department of Pediatrics, Vanderbilt University Medical Center, 21st Ave. South, Nashville, TN 37232,Corresponding author: Maciej Buchowski Department of Medicine, Vanderbilt University 1161 21 Avenue South, Nashville, TN 37232 Telephone: 615-343-4192; fax: 615-343-2979 E-mail:
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Mitchell MJ, Carpenter GJO, Crosby LE, Bishop CT, Hines J, Noll J. Growth status in children and adolescents with sickle cell disease. Pediatr Hematol Oncol 2009; 26:202-15. [PMID: 19437323 DOI: 10.1080/08880010902896882] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To assess the BMI status of children and adolescents with sickle cell disease (SCD) and determine if zBMI status during adolescence is predicted by gender, childhood zBMI status, disease genotype, and healthcare utilization (emergency department visits or hospitalizations). STUDY DESIGN Medical chart reviews were conducted on 133 patients followed through a regional Comprehensive Sickle Cell Center to obtain anthropometric measures and healthcare utilization data. Gender-specific BMI z-scores were calculated based on Centers for Disease Control (CDC) norms using Epi Info NutStat Software and SPSS generated syntax. Data were summarized categorically across two time periods for each participant: childhood (age 6-12 years) and adolescence (age 13-18 years). RESULTS Males were three times more likely to be underweight in adolescence compared to CDC norms, whereas females were three times more likely to be obese in adolescence. In addition, regression analyses indicated that BMI in adolescence was predicted by gender, average weight in childhood, and the average number of emergency department visits. CONCLUSIONS Children with SCD generally exhibit normal growth during childhood and adolescence, although 5-10% are at risk for poor growth or obesity. Prevention and intervention efforts should consider gender, average weight in childhood, and healthcare utilization factors.
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Affiliation(s)
- Monica J Mitchell
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229, USA.
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Al-Saqladi AWM, Cipolotti R, Fijnvandraat K, Brabin BJ. Growth and nutritional status of children with homozygous sickle cell disease. ACTA ACUST UNITED AC 2009; 28:165-89. [PMID: 18727846 DOI: 10.1179/146532808x335624] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Poor growth and under-nutrition are common in children with sickle cell disease (SCD). This review summarises evidence of nutritional status in children with SCD in relation to anthropometric status, disease severity, body composition, energy metabolism, micronutrient deficiency and endocrine dysfunction. METHODS A literature search was conducted on the Medline/PUBMED, SCOPUS, SciELO and LILACS databases to July 2007 using the keywords sickle cell combined with nutrition, anthropometry, growth, height and weight, body mass index, and specific named micronutrients. RESULTS Forty-six studies (26 cross-sectional and 20 longitudinal) were included in the final anthropometric analysis. Fourteen of the longitudinal studies were conducted in North America, the Caribbean or Europe, representing 78.8% (2086/2645) of patients. Most studies were observational with wide variations in sample size and selection of reference growth data, which limited comparability. There was a paucity of studies from Africa and the Arabian Peninsula, highlighting a large knowledge gap for low-resource settings. There was a consistent pattern of growth failure among affected children from all geographic areas, with good evidence linking growth failure to endocrine dysfunction, metabolic derangement and specific nutrient deficiencies. CONCLUSIONS The monitoring of growth and nutritional status in children with SCD is an essential requirement for comprehensive care, facilitating early diagnosis of growth failure and nutritional intervention. Randomised controlled trials are necessary to assess the potential benefits of nutritional interventions in relation to growth, nutritional status and the pathophysiology of the disease.
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Osuobeni EP, Okpala I, Williamson TH, Thomas P. Height, weight, body mass index and ocular biometry in patients with sickle cell disease. Ophthalmic Physiol Opt 2009; 29:189-98. [DOI: 10.1111/j.1475-1313.2008.00622.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Erb TM, Gerschultz K, Gold MA, Sanfilippo JS. Primary amenorrhea in a young adult with sickle cell disease: a case report and brief literature review on adolescent reproductive health and sickle cell disease. J Pediatr Adolesc Gynecol 2008; 21:361-70. [PMID: 19064232 DOI: 10.1016/j.jpag.2007.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Revised: 08/23/2007] [Accepted: 08/27/2007] [Indexed: 10/21/2022]
Affiliation(s)
- Teresa M Erb
- Magee Women's Hospital of the University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
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Wit JM, Clayton PE, Rogol AD, Savage MO, Saenger PH, Cohen P. Idiopathic short stature: definition, epidemiology, and diagnostic evaluation. Growth Horm IGF Res 2008; 18:89-110. [PMID: 18182313 DOI: 10.1016/j.ghir.2007.11.004] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Accepted: 11/21/2007] [Indexed: 02/08/2023]
Abstract
Idiopathic short stature is a condition in which the height of the individual is more than 2 SD below the corresponding mean height for a given age, sex and population, in whom no identifiable disorder is present. It can be subcategorized into familial and non-familial ISS, and according to pubertal delay. It should be differentiated from dysmorphic syndromes, skeletal dysplasias, short stature secondary to a small birth size (small for gestational age, SGA), and systemic and endocrine diseases. ISS is the diagnostic group that remains after excluding known conditions in short children.
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Affiliation(s)
- J M Wit
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands.
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Koumbourlis AC, Lee DJ, Lee A. Lung function and somatic growth in patients with hemoglobin SC sickle cell disease. Pediatr Pulmonol 2008; 43:175-8. [PMID: 18085696 DOI: 10.1002/ppul.20752] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the changes in lung function and somatic growth that occur over time in children with hemoglobin SC (Hb-SC) sickle cell disease (SCD). METHODS Measurements of lung function and somatic growth were performed in patients with Hb-SC twice with an interval of 50.2 +/- 26.0 months. Comparisons were made with a group of patients with hemoglobin SS (Hb-SS) SCD, matched by age, race, and gender who underwent similar testing and served as controls. RESULTS Indices of lung function in patients with Hb-SC were and remained within the normal range in the two testing periods and they were significantly higher than those measured among patients with Hb-SS. However, there was significant and similar decline (as percentage from baseline) over time in both groups (forced vital capacity, FVC: -3.7 +/- 9.4 vs. -3.8 +/- 14.2; forced expiratory volume in the first second, FEV1: -7.4 +/- 9.3 vs. -6.8 +/- 15.2; forced expiratory flow at 25-75% of FVC, FEF(25-75): -13.7 +/- 20.6 vs. -12.1 +/- 24.7 for Hb-SC and Hb-SS respectively). The body mass index (BMI, percentile) was significantly (P < 0.05) higher among patients with Hb-SC (49 +/- 36 vs. 26 +/- 18) and increased over time in both groups (50 +/- 33 vs. 32 +/- 31). CONCLUSION Lung function is generally normal among children with Hb-SC, but it declines over time in a fashion similar to that observed among patients with Hb-SS SCD. The decline is slow and it is not associated with changes in somatic growth. Our findings suggest that patients with Hb-SC should probably have the same close follow-up as patients with Hb-SS.
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Affiliation(s)
- Anastassios C Koumbourlis
- Division of Pediatric Pulmonology, Morgan Stanley Children's Hospital of New York, Columbia University Medical Center, New York, New York, USA.
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Therapy Insight: metabolic and endocrine disorders in sickle cell disease. ACTA ACUST UNITED AC 2008; 4:102-9. [DOI: 10.1038/ncpendmet0702] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2007] [Accepted: 11/01/2007] [Indexed: 02/05/2023]
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Liebelt EL, Balk SJ, Faber W, Fisher JW, Hughes CL, Lanzkron SM, Lewis KM, Marchetti F, Mehendale HM, Rogers JM, Shad AT, Skalko RG, Stanek EJ. NTP-CERHR expert panel report on the reproductive and developmental toxicity of hydroxyurea. ACTA ACUST UNITED AC 2007; 80:259-366. [PMID: 17712860 DOI: 10.1002/bdrb.20123] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Koumbourlis AC, Lee DJ, Lee A. Longitudinal changes in lung function and somatic growth in children with sickle cell disease. Pediatr Pulmonol 2007; 42:483-8. [PMID: 17469146 DOI: 10.1002/ppul.20601] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND We studied the changes in the patterns of lung function and somatic growth over time in children and adolescents (10.6 +/- 3.5 years at first test) with hemoglobin SS (Hb-SS) sickle cell disease (SCD). METHODS Lung function and somatic growth were measured twice with an interval of 42.3 +/- 23.3 months in 45 children (25 females and 20 males) with Hb-SS SCD. RESULTS The lung volumes slightly decreased but remained borderline normal in both tests. All spirometric indices were within the normal range but significantly decreased (P<0.001) at the time of the second test indicating development of lower airway obstruction (forced expiratory volume in the first second (FEV(1)): 87 +/- 21 vs. 80 +/- 15; FEV(1)/forced vital capacity (FVC): 89 +/- 7 vs. 85 +/- 6; FEF(25-75): 89 +/- 32 vs. 76 +/- 24). "Normal" pattern of lung function was initially found in 56% of the patients, but in only 29% in the second test. In contrast, those with "obstructive" pattern increased from 22 to 44%, and those with "restrictive" pattern from 22 to 27%. There was no association between history of asthma and pattern of lung function. "Normal" Body Mass Index (BMI) was found in 64% of the patients, whereas 13% had "High" BMI and 22% "Low" BMI. The two latter patterns were associated with abnormal lung function but only patients with normal BMI showed actual decline overtime. CONCLUSION SCD is characterized by a predominantly obstructive pattern of lung function that increases in prevalence over time. There was no apparent causal relationship between the pattern of somatic growth and the pattern of lung function.
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Affiliation(s)
- Anastassios C Koumbourlis
- Division of Pediatric Pulmonology, Morgan Stanley Children's Hospital of New York Presbyterian, Columbia University Medical Center, New York, NY, USA.
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MESH Headings
- Acute Disease
- Adolescent
- Adult
- Age Factors
- Analgesics, Non-Narcotic/administration & dosage
- Analgesics, Non-Narcotic/therapeutic use
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/therapeutic use
- Anemia, Sickle Cell/complications
- Anemia, Sickle Cell/diagnosis
- Anemia, Sickle Cell/drug therapy
- Anemia, Sickle Cell/epidemiology
- Anemia, Sickle Cell/genetics
- Anemia, Sickle Cell/physiopathology
- Anemia, Sickle Cell/therapy
- Antibiotic Prophylaxis
- Antisickling Agents/administration & dosage
- Antisickling Agents/therapeutic use
- Blood Transfusion
- Child
- Child, Preschool
- Diagnosis, Differential
- Female
- Genotype
- Hematopoietic Stem Cell Transplantation
- Hospitalization
- Humans
- Hydroxyurea/administration & dosage
- Hydroxyurea/therapeutic use
- Ibuprofen/administration & dosage
- Ibuprofen/therapeutic use
- Immunization
- Infant
- Infant, Newborn
- Male
- Morphine/administration & dosage
- Morphine/therapeutic use
- Pain/diagnosis
- Pain/drug therapy
- Pain/etiology
- Pain Measurement
- Penicillins/administration & dosage
- Penicillins/therapeutic use
- Risk Factors
- Stroke/epidemiology
- Stroke/prevention & control
- Time Factors
- Treatment Outcome
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Affiliation(s)
- Rupa Redding-Lallinger
- Division of Hematology/Oncology, Department of Pediatrics, University of North Carolina, Chapel Hill, NC, USA
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Wallis LA, Maconochie I. Age related reference ranges of respiratory rate and heart rate for children in South Africa. Arch Dis Child 2006; 91:330-3. [PMID: 16399779 PMCID: PMC2065979 DOI: 10.1136/adc.2005.085290] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The authors have recently presented reference ranges for heart rate and respiratory rate in healthy resting schoolchildren, aged 4-16 years, in the United Kingdom. There are no similar ranges for children in the developing world. AIMS To undertake a study in Cape Town, South Africa, to establish whether the UK ranges may be applied to socioeconomically disadvantaged groups. METHODS Data on 346 children in a township school were recorded; their height, weight, heart rate, and respiratory rate were compared to the UK ranges. RESULTS The two groups plotted closely together by height and weight on the UK 90 growth reference charts. There was no difference in heart rate between the two groups, and a difference of 0.46 breathes per minutes in respiratory rate, which is not felt to be of clinical significance. CONCLUSION The reference rages of heart and respiratory rate derived in the UK may be applied to children in developing world situations.
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Affiliation(s)
- L A Wallis
- Red Cross Children's Hospital, Cape Town, South Africa.
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Abstract
BACKGROUND Growth deficits are common in children with sickle cell disease. Few prospective studies are available and the pathophysiologic basis for the impaired growth is not clearly understood. Our objectives were to collect data on anthropomorphic measurements of children with sickle cell disease prospectively followed for 1 year and to correlate them with hematologic data. METHODS One hundred children <8 years of age (73 with homozygous SS sickle cell anemia [HbSS] and 27 with hemoglobinopathy SC [HbSC]) were included. Standardized Z scores of weight for age (waz), height for age (haz), and weight for height (whz) were compared to the National Center for Health Statistics (NCHS) reference population. RESULTS At study entry, the means (standard deviation [SD]) of waz, haz, and whz were -0.69 (1.06), -0.65 (1.11), and -0.32 (1.00), respectively. After 1 year of study, children with HbSS presented a significant decrease in waz (p = 0.01) and whz (p = 0.02); the decrease in haz was not statistically significant (p = 0.48). The effect was similar for children older or younger than 24 months of age. The decrease in waz and whz was significant for boys but not for girls. After 1 year of follow-up, lower mean waz scores were observed among patients with lower hemoglobin concentration and higher reticulocyte count (p = 0.03 and p = 0.08). Hemoglobin concentration was higher in girls. The anthropomorphic measurements did not deteriorate significantly in children with HbSC. CONCLUSIONS Growth deficits may be demonstrable in children with HbSS, even during a short period of observation. Fast red blood cell turnover may be partially responsible for the observed effect.
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Affiliation(s)
- Célia Maria Silva
- Hemoglobinopathy Out-Patient Clinic, Hemominas Foundation, Belo Horizonte, Brazil
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Jaiyesimi F, Pandey R, Bux D, Sreekrishna Y, Zaki F, Krishnamoorthy N. Sickle cell morbidity profile in Omani children. ANNALS OF TROPICAL PAEDIATRICS 2002; 22:45-52. [PMID: 11926049 DOI: 10.1179/027249302125000148] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
In order to define the morbidity profile of sickle cell disease in Omani children, we analysed data on 97 children (53 boys, 44 girls) aged < or = 12 years admitted under our care in a regional referral hospital between July 1999 and June 2000. Ninety of them had sickle cell anaemia (HbSS disease) and seven had sickle cell thalassaemia (beta zero). Their mean (SD) steady-state Hb was 7.9 (1.2), range 6-10 g/dl. They were admitted on 316 occasions during the 12-month period. The number of admissions per child ranged from one to 12 (mean 3.3). Vaso-occlusive crises were the main reason for admission (83%), followed by severe anaemia (12%) and infections (4%). During the study period, 31% received blood transfusions. Weight faltering was very common, 68% falling below the 5th percentile of the National Center for Health Statistics reference curves compared with 28% of age- and sex-matched non-sicklers (p < 0.001). Other complications included hypersplenism (four), ischaemic necrosis of the femoral head (two), and one case each of acute chest syndrome, acute splenic sequestration, cholelithiasis and pathological fracture of a lumbar vertebra. Overall, 71% of the children had moderately severe or severe disease. This pattern seems to be attributable, at least in part, to meteorological and genetic factors. The severe morbidity profile reported in this study underscores the need to continue the search for optimal management modalities, including the often emotion-laden issue of prevention.
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Affiliation(s)
- F Jaiyesimi
- Department of Paediatrics, Nizwa Hospital, Nizwa, Sultanate of Oman.
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Wang WC, Helms RW, Lynn HS, Redding-Lallinger R, Gee BE, Ohene-Frempong K, Smith-Whitley K, Waclawiw MA, Vichinsky EP, Styles LA, Ware RE, Kinney TR. Effect of hydroxyurea on growth in children with sickle cell anemia: results of the HUG-KIDS Study. J Pediatr 2002; 140:225-9. [PMID: 11865275 DOI: 10.1067/mpd.2002.121383] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Although hydroxyurea is effective in treating adults with sickle-cell anemia (SCA), there is concern that it may adversely affect growth in children. We report the growth characteristics of patients in the Phase I-II pediatric hydroxyurea trial (HUG-KIDS) before and during treatment at the maximum tolerated dose for one year. STUDY DESIGN Children and adolescents with SCA (n = 68), aged 5 to 16 years at baseline, reached the maximum tolerated dose and had serial height, weight, and Tanner stage measurements. Data from the Cooperative Study of Sickle Cell Disease (CSSCD) were used for comparison. Mixed-effects models were used to compare serial measurements as a function of age and group. RESULTS In girls, there were no significant differences in height or weight among the pretreatment, on-treatment, and CSSCD groups. Compared with the CSSCD group, HUG-KIDS boys were heavier starting at age 9 years, and pretreatment HUG-KIDS boys were taller starting at age 7 years. The Tanner stage transitions took place at appropriate ages. CONCLUSIONS Hydroxyurea treatment had no adverse effect on height or weight gain or pubertal development in school-aged children with SCA.
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Affiliation(s)
- Winfred C Wang
- Hematology Division, St Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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McMahon C, Callaghan CO, O'Brien D, Smith OP. The increasing prevalence of childhood sickle-cell disease in Ireland. Ir J Med Sci 2001; 170:183-5. [PMID: 12120971 DOI: 10.1007/bf03173886] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Ireland has been relatively free of sickle-cell disease (SCD) and a care policy for the disease has not been established. AIM To determine the prevalence of childhood SCD in Ireland and to predict requirements for a comprehensive care and assessment programme. METHODS We retrospectively analysed the data of children with SCD presenting with sickle-cell crisis to one institution from January 1999 to April 2001. We also determined the nature and severity of the presenting haemoglobinopathy phenotype. RESULTS Ninety-two patients with haemoglobinopathy have been registered with the Paediatric Haematology Service. The majority are from Nigeria with a smaller number from Angola and the Congo. Sixty have sickle-cell trait, 23 SCD, four haemoglobin SC disease and two haemoglobin E (HbE). There have been 32 sickle-cell crises. The majority were haemolytic or splenic sequestration events with a smaller number of aplastic and vaso-occlusive events and one osteomyelitis. CONCLUSION The increasing number of children presenting with SCD as a result of the increasing refugee numbers requires a comprehensive care approach similar to that required for paediatric haemophilia to ensure optimum care.
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Affiliation(s)
- C McMahon
- National Children's Hospital, Tallaght, Ireland
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