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Krogh LM, Nissen A, Weischendorff S, Hartmann B, Andersen JL, Holst JJ, Sørensen K, Fridh MK, Mackey AL, Müller K. Bone remodeling in survivors of pediatric hematopoietic stem cell transplantation: Impact of heavy resistance training. Pediatr Blood Cancer 2024; 71:e31159. [PMID: 38953152 DOI: 10.1002/pbc.31159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/23/2024] [Accepted: 06/09/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Early-onset osteoporosis is a frequent late effect after pediatric hematopoietic stem cell transplantation (HSCT). It remains unknown if physical training can improve bone formation in these patients, as the transplantation procedure may cause sustained dysregulation of the bone-forming osteoblast progenitor cells. OBJECTIVE We aimed to explore the effect of resistance training on bone remodeling in long-term survivors of pediatric HSCT. PROCEDURE In this prospective, controlled intervention study, we included seven HSCT survivors and 15 age- and sex-matched healthy controls. The participants completed a 12-week heavy load, lower extremity resistance training intervention with three weekly sessions. We measured fasting serum levels of the bone formation marker "N-terminal propeptide of type I procollagen" (P1NP), and the bone resorption marker "C-terminal telopeptide of type I collagen" (CTX). The hypothesis was planned before data collection began. The trial was registered at Clinicaltrials.gov before including the first participant, with trial registration no. NCT04922970. RESULTS Resistance training led to significantly increased levels of fasting P1NP in both patients (from 57.62 to 114.99 ng/mL, p = .03) and controls (from 66.02 to 104.62 ng/mL, p < .001). No significant changes in fasting CTX levels were observed. CONCLUSIONS Despite previous high-dose cytotoxic therapy, long-term survivors of pediatric HSCT respond to resistance training with improvement of bone formation, comparable to that of healthy controls. This suggests that resistance training might be a promising non-pharmacological approach to prevent the early decline in bone mass, and should be considered as part of a follow-up program to counteract long-term sequela after pediatric HSCT.
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Affiliation(s)
- Lise Marie Krogh
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Anne Nissen
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Sarah Weischendorff
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Institute for Inflammation Research, Center for Rheumatology and Spine Disease, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Bolette Hartmann
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jesper Løvind Andersen
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg & Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jens Juul Holst
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kaspar Sørensen
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Bone Marrow Transplantation and Immunodeficiency, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Martin Kaj Fridh
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Abigail Louise Mackey
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg & Frederiksberg, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Müller
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Institute for Inflammation Research, Center for Rheumatology and Spine Disease, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Jin HY, Lee JA. Low bone mineral density in children and adolescents with cancer. Ann Pediatr Endocrinol Metab 2020; 25:137-144. [PMID: 33017885 PMCID: PMC7538298 DOI: 10.6065/apem.2040060.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 02/10/2020] [Indexed: 12/18/2022] Open
Abstract
Maximizing accumulation of bone mass during childhood and adolescence is essential to attaining optimal peak bone mass. Childhood cancer survivors (CCS) have lower bone mineral density (BMD) than the general population. Chemotherapeutic agents including steroids and radiotherapy can affect BMD. Cancer itself, hormonal insufficiency, a poor nutritional state, and a deficit of physical activities during or after treatment also influence BMD in CCS, resulting in failure to achieve appropriate peak bone mass. Low BMD in childhood and adolescence can lead to osteoporosis in adult life and complications such as bone pain, bone deformity, and fractures. Thus, BMD in CCS should be monitored with appropriate intervention. Adequate intake of calcium and vitamin D and an increase in physical activity are recommended. Timely supplements of hormones are needed in some cases. Some publications have reported that bisphosphonate therapies using pamidronate or alendronate were well tolerated in CCS and helped increase BMD.
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Affiliation(s)
- Hye Young Jin
- Department of Pediatrics, Center for Pediatric Cancer, National Cancer Center, Goyang, Korea
| | - Jun Ah Lee
- Department of Pediatrics, Center for Pediatric Cancer, National Cancer Center, Goyang, Korea,Address for correspondence: Jun Ah Lee, MD, PhD Department of Pediatrics, Center for Pediatric Cancer, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang 10408, Korea Tel: +82-31-920-1604 Fax: +82-31-920-1244 E-mail:
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Zemrani B, Yap JK, Van Dort B, Evans V, Bartle J, Shandley D, Smart J, Bines JE, Cole T. Nutritional challenges in children with primary immunodeficiencies undergoing hematopoietic stem cell transplant. Clin Nutr 2020; 39:2832-2841. [PMID: 31952894 DOI: 10.1016/j.clnu.2019.12.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/08/2019] [Accepted: 12/10/2019] [Indexed: 11/25/2022]
Abstract
Nutritional profile and management of patients with primary immunodeficiencies (PID) undergoing hematopoietic stem cell transplant (HSCT) has not been described in the literature. We aim to report the nutritional challenges and practices peculiar to this population before and after HSCT and suggest clinical pathways for their management. We conducted a single-centre retrospective study. Inclusion criteria were children aged less than 20 years with a diagnosis of PID who have undergone HSCT at the Royal Children's Hospital Melbourne since April 2014 with a minimal follow-up of 1 year. Nutritional parameters were collected in the pre-transplant period, at conditioning, and at 1, 3, 6 and 12 months post-HSCT. Descriptive analysis were used. Between April 2014 and December 2018, 27 children received 31 HSCT. Before transplant, 33% had a weight and/or height ≤ -2 standard deviations (SD). Forty percent required nutritional support before transplant: 33% had enteral nutrition (EN) while 7% required long-term parenteral nutrition (PN) due to intestinal failure. After transplant, although most children were started on EN, 82% required PN with a mean duration of 67 days. Mean time to full oral diet was 154 days. Pre-transplant mean weight and height were -0.57 SD and -0.88 SD respectively. After a decrease in anthropometric parameters the first 3 months post-transplant, progressive catch up was noticeable for weight (-0.27 SD) with no catch up for height at 1 year (-0.93 SD). Our work highlights the nutritional challenges and specificities of children with PID in the peri-transplant period. An approach to nutrition assessment and management in the pre- and post-transplant period is proposed.
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Affiliation(s)
- Boutaina Zemrani
- Clinical Nutrition Unit, Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital, Melbourne, Australia; Clinical Nutrition, Department Woman-Mother-Child, Lausanne University Hospital (CHUV), Lausanne, Switzerland.
| | - Jason K Yap
- Clinical Nutrition Unit, Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital, Melbourne, Australia
| | - Ben Van Dort
- Department of Allergy and Immunology, The Royal Children's Hospital, Melbourne, Australia
| | - Victoria Evans
- Clinical Nutrition Unit, Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital, Melbourne, Australia
| | - Jodie Bartle
- Department of Nutrition and Food Services, The Royal Children's Hospital, Melbourne, Australia
| | - Danielle Shandley
- Department of Nutrition and Food Services, The Royal Children's Hospital, Melbourne, Australia
| | - Joanne Smart
- Department of Allergy and Immunology, The Royal Children's Hospital, Melbourne, Australia
| | - Julie E Bines
- Clinical Nutrition Unit, Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital, Melbourne, Australia
| | - Theresa Cole
- Department of Allergy and Immunology, The Royal Children's Hospital, Melbourne, Australia
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Abstract
BACKGROUND Vertebral compression fractures are a common result of osteoporosis and osteopenia secondary to steroid use and chemotherapy treatment. Balloon kyphoplasty is a treatment option with good to excellent results well described in adults. Although a few recent studies have been published regarding the use of kyphoplasty in children, no formal indication exists for the pediatric population. The purpose of this study is to describe the outcomes of 3 chronically ill children with intractable pain from vertebral compression fractures, managed with kyphoplasty. METHODS We retrospectively reviewed 3 pediatric patients who underwent balloon kyphoplasty for vertebral compression fractures secondary to chronic illness. Patient variables included age, sex, primary diagnosis and treatments, levels of vertebral fracture, and time elapsed from initial therapy to fracture. A numeric rating scale of 0 to 10 was used for patient-reported pain, before and after kyphoplasty. Preoperative and postoperative analgesic use and physical function were also described. Surgical variables included levels of kyphoplasty, operative time, and procedure-related complications. RESULTS The primary diagnoses were relapsed rhabdomyosarcoma, abdominal desmoplastic small round cell tumor, and IPEX-like (immune dysregulation, polyendrocrinopathy, enteropathy, X-linked) syndrome. All 3 patients were males, aged 12, 12, and 13, respectively, at the time of kyphoplasty. Pain scores were 8 to 9 preoperatively in 2 patients, severely affecting their physical function including independent walking. Excruciating back pain was a contributing factor to the respiratory distress of the third patient, who required elective intubation. All of the patients reported significant pain relief (range, 0 to 2) and improved physical function with kyphoplasty. The third patient was successfully extubated 1 week postoperatively and eventually returned to baseline activity. There were no complications related to kyphoplasty. CONCLUSIONS Balloon kyphoplasty seems to be safe in terminally ill children and may be a useful tool for managing intractable pain due to vertebral compression fractures. LEVEL OF EVIDENCE Level IV-retrospective case series.
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Barr RD, Gomez-Almaguer D, Jaime-Perez JC, Ruiz-Argüelles GJ. Importance of Nutrition in the Treatment of Leukemia in Children and Adolescents. Arch Med Res 2016; 47:585-592. [DOI: 10.1016/j.arcmed.2016.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 11/23/2016] [Indexed: 11/28/2022]
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Bechard LJ, Gordon C, Feldman HA, Venick R, Gura K, Guinan EC, Duggan C. Bone loss and vitamin D deficiency in children undergoing hematopoietic cell transplantation. Pediatr Blood Cancer 2015; 62:687-92. [PMID: 25630874 PMCID: PMC4743025 DOI: 10.1002/pbc.25370] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 11/03/2014] [Indexed: 11/08/2022]
Abstract
BACKGROUND Hematopoietic cell transplantation (HCT) may be detrimental to bone health and vitamin D status in children. PROCEDURE We conducted a prospective, multicenter cohort study to identify changes in bone health markers during the first 100 days after allogeneic HCT in 26 children. Bone mineral density (BMD), bone mineral content (BMC), and serum 25-hydroxyvitamin D (25OHD) concentrations were measured at baseline, 30 days, and 100 days after HCT. RESULTS Mean (SD) BMD and BMC Z-scores (-0.48 ± 1.09 and -0.98 ± 1.26, respectively) were normal at baseline. Repeated-measures analysis revealed significant declines in BMD and BMC Z-scores over the 100 day study period, when adjusted for age, sex, Tanner stage, lean mass, fat mass, resting energy expenditure, total energy intake, insulin sensitivity, serum phosphorus, and inpatient steroid intake. Adjusted mean (SE) 25OHD concentrations declined from 29.2 (3.1) ng/ml at baseline, to 17.7 (1.8) ng/ml at 100 days after HCT. Vitamin D deficiency (25OHD <20 ng/ml) was present in 50% of patients 100 days after HCT. CONCLUSIONS Significant bone loss and vitamin D deficiency occur in children in the first 100 days following allogeneic HCT. Strategies to diminish acute bone loss during HCT in children are needed.
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Affiliation(s)
- Lori J. Bechard
- Center for Nutrition, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA
,Dana-Farber Cancer Institute, Boston, MA
,Correspondence to: Center for Nutrition, Boston Children’s Hospital, 333 Longwood Avenue, Boston, MA 02115.
| | | | - Henry A. Feldman
- Center for Nutrition, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA
| | | | - Kathleen Gura
- Center for Nutrition, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA
| | | | - Christopher Duggan
- Center for Nutrition, Boston Children’s Hospital, 300 Longwood Avenue, Boston, MA
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Laakso S, Valta H, Verkasalo M, Toiviainen-Salo S, Mäkitie O. Compromised peak bone mass in patients with inflammatory bowel disease--a prospective study. J Pediatr 2014; 164:1436-43.e1. [PMID: 24650398 DOI: 10.1016/j.jpeds.2014.01.073] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 12/17/2013] [Accepted: 01/29/2014] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To evaluate peak bone mass attainment in children and adolescents with inflammatory bowel disease and to identify risk factors for suboptimal bone mass attainment. STUDY DESIGN We conducted a prospective follow-up study of 47 children and adolescents (24 males) with ulcerative colitis (n = 30) or Crohn's disease (n = 17). They were assessed for lumbar spine areal bone mineral density (aBMD) and for height-adjusted whole body less head bone mineral content (BMC); the values were corrected for bone age. RESULTS Altogether, 73% of the patients had completed pubertal development after the median follow-up time of over 5 years. Despite clinical inactivity of the disease in 70% of the patients at the follow-up visit, BMD or BMC Z-scores improved in none of the measurement sites. Lumbar spine aBMD Z-scores (mean difference [95% CI], -0.47 [-0.92 to -0.03]; P = .04) and whole body less head BMC height- and bone age-adjusted Z-scores (-0.52 [-1.01 to -0.02]; P = .04) decreased in patients who were pubertal at baseline and completed their pubertal development during the follow-up. Postpubertal patients had lower aBMD and BMC Z-scores in comparison with prepubertal and pubertal patients. Low lumbar spine aBMD (Z-score < -1.0) was associated with completed pubertal development, underweight, and greater lifetime cumulative weight-adjusted prednisolone dose. Vertebral fractures were detected in 3 patients (6%). One-fourth of the patients had insufficient serum 25-hydroxyvitamin D concentrations (<50 nmol/L). CONCLUSIONS The longitudinal follow-up over the pubertal years shows that inflammatory bowel disease poses a significant threat for bone health. The suboptimal peak bone mass attainment may have life-long consequences.
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Affiliation(s)
- Saila Laakso
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland.
| | - Helena Valta
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Matti Verkasalo
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Sanna Toiviainen-Salo
- Helsinki Medical Imaging Center, Department of Pediatric Radiology, Helsinki University Central Hospital, Helsinki, Finland
| | - Outi Mäkitie
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland; Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland; Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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Late Effects in Survivors After Hematopoietic Cell Transplantation in Childhood. PEDIATRIC ONCOLOGY 2014. [DOI: 10.1007/978-3-642-39920-6_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Bone mineral deficits in recipients of hematopoietic cell transplantation: the impact of young age at transplant. Bone Marrow Transplant 2013; 49:258-63. [PMID: 24121211 PMCID: PMC3946360 DOI: 10.1038/bmt.2013.156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 08/22/2013] [Indexed: 11/21/2022]
Abstract
Low bone mineral density (BMD) has been reported in recipients of
pediatric hematopoietic cell transplantation (HCT), but it is unclear whether
age at HCT plays a role. The objective of this cross-sectional study was to
determine if patients treated with HCT before age 10 years have long-term BMD
deficits compared to patients transplanted at an older age and to sibling
controls. The study included 151 HCT recipients (87 males), age at study
24.7±8.6 years treated with HCT for hematologic malignancies at age
10.9±6.4 years, and 92 healthy sibling controls (49 males), age at study
22.3±8.0 years. Dual-energy x-ray absorptiometry was performed to
measure BMD Z-scores for total body (TBMD), lumbar spine (LBMD), and femoral
neck (FNBMD, for subjects ≥20 years at study visit). Patients <10
years at HCT had significantly lower TBMD and FNBMD Z-scores (by 0.5 and 0.8 SD,
respectively) compared to controls (P=0.003 and
P=0.0001, respectively) and patients >18 years
at HCT (P=0.04 and P=0.004,
respectively) at an average of 14 years after HCT. In conclusion, this study
identified young age at transplant as an important risk factor for bone deficits
in young adulthood, suggesting that efforts to reduce bone loss should focus on
this patient population.
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Holmlund-Suila E, Koskivirta P, Metso T, Andersson S, Mäkitie O, Viljakainen HT. Vitamin D deficiency in children with a chronic illness-seasonal and age-related variations in serum 25-hydroxy Vitamin D concentrations. PLoS One 2013; 8:e60856. [PMID: 23585857 PMCID: PMC3621868 DOI: 10.1371/journal.pone.0060856] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 03/04/2013] [Indexed: 01/25/2023] Open
Abstract
Introduction Children and adolescents with a chronic illness have potential risk factors for vitamin D deficiency. An optimal vitamin D status might have multiple health effects. This study evaluated vitamin D status and its association with age, gender, and season in a large cohort of chronically ill Finnish patients at a tertiary pediatric outpatient clinic. A cross-sectional register-based study was carried out, involving altogether 1351 children (51% boys, age range 0.2–18 years), who visited the outpatient clinic during 2007–2010 and had their vitamin D status (S-25-OHD) determined. A post-doc analysis was conducted to identify predisposing and preventing factors for vitamin D deficiency. Results Almost half (47%) of the S-25-OHD values were consistent with subnormal vitamin D status (S-25-OHD <50 nmol/L) while only 12% were >80 nmol/L. Age and season were the most important determinants for S-25-OHD concentration. Mean S-25-OHD concentration differed between age groups (Kruskal-Wallis; p<0.001), adolescents being at highest risk for vitamin D insufficiency. Young age and vitamin D supplementation were preventive factors for deficiency, while non-Finnish ethnic background was a predisposing factor. S-25-OHD showed significant seasonal variation in children older than 6 years. In the whole cohort, S-25-OHD was on average 13 nmol/L higher in summer than in winter, and the prevalence of vitamin D deficiency ( = S-25-OHD <37.5 nmol/l) varied from 11% in summer to 29% in winter. Conclusions The finding that almost half of the studied Finnish children with a chronic illness had suboptimal vitamin D status is alarming. Inferior vitamin D status was noted in adolescents compared with younger children, suggesting that imbalance between intake and requirement evolves with age. Although less common during summer, subnormal vitamin D status was still observed in 28% of those evaluated in summer. Clinicians should identify individuals at risk and actively recommend vitamin D supplementation.
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Affiliation(s)
- Elisa Holmlund-Suila
- Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Panu Koskivirta
- Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Tuula Metso
- Skin and Allergy Hospital, Division of Allergy, Helsinki University Central Hospital, Helsinki, Finland
| | - Sture Andersson
- Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Outi Mäkitie
- Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Heli T. Viljakainen
- Children’s Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
- Musculoskeletal Research Unit, University of Bristol, Bristol, United Kingdom
- * E-mail:
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Topor LS, Melvin P, Giancaterino C, Gordon CM. Factors associated with low bone density in patients referred for assessment of bone health. INTERNATIONAL JOURNAL OF PEDIATRIC ENDOCRINOLOGY 2013; 2013:4. [PMID: 23388217 PMCID: PMC3616976 DOI: 10.1186/1687-9856-2013-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 01/21/2013] [Indexed: 11/26/2022]
Abstract
Background To identify factors that predict low bone mineral density (BMD) in pediatric patients referred for dual-energy x-ray absorptiometry assessments. Methods This is a retrospective cohort study of 304 children and adolescents referred for dual-energy x-ray absorptiometry assessments at a tertiary care center. Outcomes included risk factors which predicted a significant low bone density for age, defined as BMD Z-score ≤ -2.0 SD. A univariate analysis involved Chi-square, Fisher’s Exact test, and analysis of variance, and multivariate logistic regression models were constructed to determine predictors of low bone mineral density. Results In the multivariate logistic regression model, predictors of low bone mineral density included low body mass index Z-score (odds ratio 0.52, 95% confidence interval 0.39 – 0.69), low height Z-score (OR 0.71, 95% CI 0.57 – 0.88), vitamin D insufficiency (OR 3.97, 95% CI 2.08 – 7.59), and history of bone marrow transplant (OR 5.78, 95% CI 1.00 – 33.45). Conclusions Underlying health problems and associated treatments can impair bone mineral accrual. We identified risk factors most predictive of low bone mineral density in subjects referred for bone density measurement. Recognition of these factors may allow for earlier assessment to maximize bone mass in at-risk children.
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Markula-Patjas KP, Valta HL, Kerttula LI, Soini IH, Honkanen VEA, Toiviainen-Salo SM, Mäkitie OM. Prevalence of vertebral compression fractures and associated factors in children and adolescents with severe juvenile idiopathic arthritis. J Rheumatol 2011; 39:365-73. [PMID: 22133619 DOI: 10.3899/jrheum.110305] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE Vertebral fractures occur in patients with juvenile idiopathic arthritis (JIA), but data on their frequency and causes are scarce. Our cross-sectional study evaluated prevalence of compression fractures and associated factors in a high-risk pediatric population with severe JIA. METHODS Children and adolescents with a history of treatment-resistant polyarticular-course JIA for ≥ 5 years or systemic arthritis for ≥ 3 years were recruited. Clinical examination, dietary recall, laboratory measurements, bone mineral density (BMD) measurement by dual-energy X-ray absorptiometry, and spinal radiography were performed. RESULTS Our study included 50 patients (41 girls), of whom 6 (12%) had systemic arthritis, with a median age of 14.8 years (range 7.0-18.7 yrs) and median disease duration of 10.2 years (range 3.9-16.8 years). Ninety-four percent had used systemic glucocorticoids (GC); the median total duration of GC treatment was 7.1 years (range 0-15.5 yrs). The median weight-adjusted cumulative GC dose for the preceding 3 years was 72 mg/kg (range 0-911 mg/kg). The median bone age-corrected lumbar spine and whole-body areal BMD Z-scores were -0.8 and -1.0, respectively. Twenty-two percent had vertebral fractures, mostly thoracic. Compression fractures were associated with high disease activity, high body mass index (BMI), and high recent cumulative GC dose, but not with disease duration or BMD. Thirty percent had sustained at least 1 peripheral low energy fracture. Twenty-six percent were deemed to have significantly compromised bone health. CONCLUSION Severe JIA is associated with a significant risk of vertebral compression fractures. Associated factors include high disease activity, high BMI, and high recent GC exposure. Further studies are needed to establish optimal prevention and treatment guidelines.
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Decreased bone mineral density in young adults treated with SCT in childhood: the role of 25-hydroxyvitamin D. Bone Marrow Transplant 2011; 47:657-62. [DOI: 10.1038/bmt.2011.147] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Immunohematopoietic stem cell transplantation in Cape Town: a ten-year outcome analysis in adults. Hematol Oncol Stem Cell Ther 2010; 2:320-32. [PMID: 20118055 DOI: 10.1016/s1658-3876(09)50020-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Immunohematopoietic stem cell transplantation has curative potential in selected hematologic disorders. Stem cell transplantation was introduced into South Africa in 1970 as a structured experimental and clinical program. In this report, we summarize the demography and outcome by disease category, gender, and type of procedure in patients older than 18 years of age who were seen from April 1995 to December 2002. PATIENTS AND METHODS This retrospective analysis included 247 individuals over 18 years of age for whom complete data were available. These patients received grafts mostly from peripheral blood with the appropriate stem cell population recovered by apheresis. RESULTS Patient ages ranged from 20 to 65 years with a median age of 42 years. There were 101 females and 146 males. There were no withdrawals and 63% survived to the end of the study. At 96 months of follow-up, a stable plateau was reached for each disease category. Median survival was 3.3 years (n=6, 14.6%) for acute lymphoblastic anemia, 3.1 years (n=44, 18%) for acute myeloid leukemia, 2.8 years (n=47, 19%) for chronic granulocytic leukemia, 2.8 years (n=71, 29%) for lymphoma, 1.5 years (n=23, 9%) for myeloma, 1.43 years (n=10, 4%) for aplasia, and 1.4 years (n=38, 15%) for a miscellaneous group comprising less than 10 examples each. Multivariate analysis showed that only diagnosis and age had a significant impact on survival, but these two variables might be interrelated. There was no significant difference in outcome by source of graft. CONCLUSION The results confirm that procedures carried out in a properly constituted and dedicated unit, which meets established criteria and strictly observes treatment protocols, generate results comparable to those in a First World referral center. Low rates of transplant-related mortality, rejection and graft-versus-host disease are confirmed, but the benefits cannot be extrapolated outside of academically oriented and supervised facilities.
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Kilpinen-Loisa P, Paasio T, Soiva M, Ritanen UM, Lautala P, Palmu P, Pihko H, Mäkitie O. Low bone mass in patients with motor disability: prevalence and risk factors in 59 Finnish children. Dev Med Child Neurol 2010; 52:276-82. [PMID: 19709135 DOI: 10.1111/j.1469-8749.2009.03464.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Children with motor disabilities are at increased risk of compromised bone health. This study evaluated prevalence and risk factors of low bone mass and fractures in these children. METHOD This cross-sectional cohort study evaluated bone health in 59 children (38 males, 21 females; median age 10 y 11 mo) with motor disability (Gross Motor Function Classification System levels II-V). Bone mineral density (BMD) in the lumbar spine was measured with dual-energy X-ray absorptiometry; BMD values were corrected for bone size (bone mineral apparent density [BMAD]) and skeletal maturity, and compared with normative data. Spinal radiographs were obtained to assess vertebral morphology. Blood biochemistry included vitamin D concentration and other parameters of calcium homeostasis. RESULTS Ten children (17%) had sustained in total 14 peripheral fractures; lower-limb fractures predominated. Compression fractures were present in 25%. The median spinal BMAD z-score was -1.0 (range -5.0 to 2.0); it was -0.6 in those without fractures and -1.7 in those with fractures (p=0.004). Vitamin D insufficiency was present in 59% of participants (serum 25-hydroxyvitamin D <50 nmol/l) and hypercalciuria in 27%. Low BMAD z-score and hypercalciuria were independent predictors for fractures. INTERPRETATION Children with motor disability are at high risk of peripheral and vertebral fractures and low BMD. Evaluation of bone health and prevention of osteoporosis should be included in the follow-up.
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Affiliation(s)
- Päivi Kilpinen-Loisa
- Department of Paediatric Neurology, Päijät-Häme Central Hospital, Lahti, Finland.
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Abstract
CONTEXT As awareness of osteoporosis in childhood has increased, so have pressures to consider use of the pharmacological agents used to treat osteoporosis in adults. This review examines available research on the efficacy and safety of bisphosphonate therapy for pediatric osteoporosis. EVIDENCE ACQUISITION We reviewed the medical literature for key articles and consensus statements on the use of bisphosphonates in children through June 2008. EVIDENCE SYNTHESIS We compared reports using varying bisphosphonate agents, doses, and duration of therapy to treat osteogenesis imperfecta and a variety of secondary causes of osteoporosis in children. Conclusions drawn from a recently published Cochrane analysis and the consensus statements from experts in the field were considered as well. CONCLUSIONS Use of bisphosphonate therapy in pediatric patients remains controversial because of inadequate long-term efficacy and safety data. For this reason, many experts recommend limiting use of these agents to those children with recurrent extremity fractures, symptomatic vertebral collapse, and reduced bone mass. Current data are inadequate to support the use of bisphosphonates in children to treat reductions in bone mass/density alone. More research is needed to define appropriate indications for bisphosphonate therapy and the optimal agent, dose, and duration of use in pediatric patients.
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Affiliation(s)
- Laura K Bachrach
- Stanford University School of Medicine, Stanford, California 94305, USA.
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