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Little MP, Wakeford R, Bouffler SD, Abalo K, Hauptmann M, Hamada N, Kendall GM. Cancer risks among studies of medical diagnostic radiation exposure in early life without quantitative estimates of dose. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 832:154723. [PMID: 35351505 PMCID: PMC9167801 DOI: 10.1016/j.scitotenv.2022.154723] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/22/2022] [Accepted: 03/17/2022] [Indexed: 04/14/2023]
Abstract
BACKGROUND There is accumulating evidence of excess risk of cancer in various populations exposed at acute doses below several tens of mSv or doses received over a protracted period. There is also evidence that relative risks are generally higher after radiation exposures in utero or in childhood. METHODS AND FINDINGS We reviewed and summarised evidence from 89 studies of cancer following medical diagnostic exposure in utero or in childhood, in which no direct estimates of radiation dose are available. In all of the populations studied exposure was to sparsely ionizing radiation (X-rays). Several of the early studies of in utero exposure exhibit modest but statistically significant excess risks of several types of childhood cancer. There is a highly significant (p < 0.0005) negative trend of odds ratio with calendar period of study, so that more recent studies tend to exhibit reduced excess risk. There is no significant inter-study heterogeneity (p > 0.3). In relation to postnatal exposure there are significant excess risks of leukaemia, brain and solid cancers, with indications of variations in risk by cancer type (p = 0.07) and type of exposure (p = 0.02), with fluoroscopy and computed tomography scans associated with the highest excess risk. However, there is highly significant inter-study heterogeneity (p < 0.01) for all cancer endpoints and all but one type of exposure, although no significant risk trend with calendar period of study. CONCLUSIONS Overall, this large body of data relating to medical diagnostic radiation exposure in utero provides support for an associated excess risk of childhood cancer. However, the pronounced heterogeneity in studies of postnatal diagnostic exposure, the implied uncertainty as to the meaning of summary measures, and the distinct possibilities of bias, substantially reduce the strength of the evidence from the associations we observe between radiation imaging in childhood and the subsequent risk of cancer being causally related to radiation exposure.
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Affiliation(s)
- Mark P Little
- Radiation Epidemiology Branch, National Cancer Institute, Bethesda, MD 20892-9778, USA.
| | - Richard Wakeford
- Centre for Occupational and Environmental Health, Faculty of Biology, Medicine and Health, The University of Manchester, Ellen Wilkinson Building, Oxford Road, Manchester M13 9PL, UK
| | - Simon D Bouffler
- Radiation Effects Department, UK Health Security Agency (UKHSA), Chilton, Didcot OX11 0RQ, UK
| | - Kossi Abalo
- Laboratoire d'Épidémiologie, Institut de Radioprotection et de Sûreté Nucléaire, BP 17 92262 Fontenay-aux-Roses Cedex, France
| | - Michael Hauptmann
- Institute of Biostatistics and Registry Research, Brandenburg Medical School Theodor Fontane, Fehrbelliner Strasse 38, 16816 Neuruppin, Germany
| | - Nobuyuki Hamada
- Radiation Safety Unit, Biology and Environmental Chemistry Division, Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1 Iwado-kita, Komae, Tokyo 201-8511, Japan
| | - Gerald M Kendall
- Cancer Epidemiology Unit, Oxford Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Headington, Oxford OX3 7LF, UK
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Association of Electrolyte Changes and Inflammatory Markers with Renal Involvement in Children with Febrile UTI. Nephrourol Mon 2021. [DOI: 10.5812/numonthly.118086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: We need some simpler, cheaper, and less burdensome tools to investigate the severity of renal parenchymal involvement in children with clinical pyelonephritis. Objectives: The present study was designed to investigate the relationship between electrolyte changes with renal involvement as documented by dimercaptosuccinic acid (DMSA) scan in children with febrile urinary tract infection (UTI). Methods: This is a retrospective cohort study, involving 158 children aged two months to 14 years with febrile UTI admitted to Taleghani Hospital in Gorgan from 2018 to 2019. Their documents in hospital were analyzed. They were divided into two groups with positive or negative defects on DMSA scan. Clinical and laboratory data were studied. Statistical analysis was performed using SPSS version 18. Data were analyzed using independent t-test with normal distribution of variables, otherwise chi-square test was used. The statistical significance level of the study was considered 0.05. Results: Among the 158 children, 78 patients (49.4%) had normal DMSA scan results, and 80 patients (50.6%) had an abnormal result. The mean age in month was not different between the two groups. In patients with positive renal cortical defects on DMSA Scintigraphy (group 2), ESR was significantly higher than the first group (P < 0.05). The mean serum Na level in the second group was lower than in the first group; however, it was only slightly significant (P = 0.058). The two groups showed no difference with respect to serum potassium, urine specific gravity (SG), WBC count, and the duration of fever (P > 0.05). The frequency distribution of proteinuria was not different between the two groups (P = 0.836). Conclusions: We suggest that increased ESR, positive CRP, and the presence of reflux can predict renal parenchymal involvement in children with febrile UTI as evidenced by a positive finding on DMSA scan, and the presence of hyponatremia has a little predictive value in this regard.
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Early life ionizing radiation exposure and cancer risks: systematic review and meta-analysis. Pediatr Radiol 2021; 51:45-56. [PMID: 32910229 DOI: 10.1007/s00247-020-04803-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 06/12/2020] [Accepted: 08/05/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND Ionizing radiation use for medical diagnostic purposes has substantially increased over the last three decades. Moderate to high doses of radiation are well established causes of cancer, especially for exposure at young ages. However, cancer risk from low-dose medical imaging is debated. OBJECTIVE To review the literature on cancer risks associated with prenatal and postnatal medical diagnostic ionizing radiation exposure among children and to assess this risk through a meta-analysis. MATERIALS AND METHODS A literature search of five electronic databases supplemented by a hand search was performed to retrieve relevant epidemiological studies published from 2000 to 2019, including patients younger than 22 years of age exposed to medical imaging ionizing radiation. Pooled odds ratio (ORpooled) and pooled excess relative risk (ERRpooled) representing the excess of risk per unit of organ dose were estimated with a random effect model. RESULTS Twenty-four studies were included. For prenatal exposure (radiographs or CT), no significant increased risk was reported for all cancers, leukemia and brain tumors. For postnatal exposure, increased risk was observed only for CT, mostly for leukemia (ERRpooled=26.9 Gy-1; 95% confidence interval [CI]: 2.7-57.1) and brain tumors (ERRpooled=9.1 Gy-1; 95% CI: 5.2-13.1). CONCLUSION CT exposure in childhood appears to be associated with increased risk of cancer while no significant association was observed with diagnostic radiographs.
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Simões E Silva AC, Oliveira EA, Mak RH. Urinary tract infection in pediatrics: an overview. J Pediatr (Rio J) 2020; 96 Suppl 1:65-79. [PMID: 31783012 PMCID: PMC9432043 DOI: 10.1016/j.jped.2019.10.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/12/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE This review aimed to provide a critical overview on the pathogenesis, clinical findings, diagnosis, imaging investigation, treatment, chemoprophylaxis, and complications of urinary tract infection in pediatric patients. SOURCE OF DATA Data were obtained independently by two authors, who carried out a comprehensive and non-systematic search in public databases. SUMMARY OF FINDINGS Urinary tract infection is the most common bacterial infection in children. Urinary tract infection in pediatric patients can be the early clinical manifestation of congenital anomalies of the kidney and urinary tract (CAKUT) or be related to bladder dysfunctions. E. coli is responsible for 80-90% of community-acquired acute pyelonephritis episodes, especially in children. Bacterial virulence factors and the innate host immune systems may contribute to the occurrence and severity of urinary tract infection. The clinical presentation of urinary tract infections in children is highly heterogeneous, with symptoms that can be quite obscure. Urine culture is still the gold standard for diagnosing urinary tract infection and methods of urine collection in individual centers should be determined based on the accuracy of voided specimens. The debate on the ideal imaging protocol is still ongoing and there is tendency of less use of prophylaxis. Alternative measures and management of risk factors for recurrent urinary tract infection should be emphasized. However, in selected patients, prophylaxis can protect from recurrent urinary tract infection and long-term consequences. According to population-based studies, hypertension and chronic kidney disease are rarely associated with urinary tract infection. CONCLUSION Many aspects regarding urinary tract infection in children are still matters of debate, especially imaging investigation and indication of antibiotic prophylaxis. Further longitudinal studies are needed to establish tailored approach of urinary tract infection in childhood.
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Affiliation(s)
- Ana Cristina Simões E Silva
- Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Laboratório Interdisciplinar de Investigação Médica, Departamento de Pediatria, Unidade de Nefrologia Pediátrica, Belo Horizonte, MG, Brazil.
| | - Eduardo A Oliveira
- Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Laboratório Interdisciplinar de Investigação Médica, Departamento de Pediatria, Unidade de Nefrologia Pediátrica, Belo Horizonte, MG, Brazil
| | - Robert H Mak
- University of California, Rady Children's Hospital San Diego, Division of Pediatric Nephrology, San Diego, United States
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Johnin K, Kobayashi K, Tsuru T, Yoshida T, Kageyama S, Kawauchi A. Pediatric voiding cystourethrography: An essential examination for urologists but a terrible experience for children. Int J Urol 2018; 26:160-171. [PMID: 30569659 DOI: 10.1111/iju.13881] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 11/14/2018] [Indexed: 12/24/2022]
Abstract
Voiding cystourethrography is the most important fluoroscopic examination in pediatric urology for the investigation of lower urogenital tract diseases, such as vesicoureteral reflux or urethral stricture. However, this invasive procedure imposes a significant burden on children and their parents, and recently there has been a paradigm shift in the diagnosis and treatment of vesicoureteral reflux. In the 2011 revision, the American Academy of Pediatrics guidelines on urinary tract infection recommended abandoning routine voiding cystourethrography after the first febrile urinary tract infection. In 2014, the randomized intervention for children with vesicoureteral reflux study recommended discontinuation of routine continuous antibiotic prophylaxis for vesicoureteral reflux. The time is now ripe to radically reconsider indications for voiding cystourethrography and the procedure itself.
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Affiliation(s)
- Kazuyoshi Johnin
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Kenichi Kobayashi
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Teruhiko Tsuru
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Tetsuya Yoshida
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Susumu Kageyama
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Akihiro Kawauchi
- Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan
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Color Doppler Ultrasound Evaluation of Ureteral Jet Angle to Detect Vesicoureteral Reflux in Children. J Urol 2016; 195:1877-82. [DOI: 10.1016/j.juro.2016.01.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2016] [Indexed: 11/24/2022]
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Liao YH, Lin CL, Tsai PP, Shen WC, Sung FC, Kao CH. Subsequent Cancer Risk of Women Receiving Hysterosalpingography: A Nationwide Population-Based Retrospective Cohort Study. Women Health 2015; 55:613-22. [PMID: 25909564 DOI: 10.1080/03630242.2015.1039185] [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: 10/23/2022]
Abstract
The objective of this study was to estimate the subsequent cancer risk of women after receiving hysterosalpingography (HSG) by conducting a nationwide retrospective cohort study. We identified a study cohort of 4,371 patients who had had a HSG examination and a comparison cohort of 17,484 women without HSG examination between 1998 and 2005. Both cohorts were followed up with until the end of 2010 to measure the incidence of cancer. The risk of developing cancer for patients with HSG was assessed using the Cox proportional hazard model. In the multivariate analyses, the HSG cohort did not have a significantly greater risk of cancer (Hazard Ratio [HR] = 1.02, 95% CI = 0.79-1.31) than the non-HSG cohort. The HR was highest for genital cancer (HR = 1.32, 95% CI = 0.77-2.25), followed by urinary system cancer (HR = 1.11, 95% CI = 0.23-5.40), and abdominal cancer not involving the GU system (HR = 1.04, 95% CI = 0.53-2.03), all of which were non-significant elevations. The cancer incidence rates, especially that for urinary system cancer, were increased in the HSG cohort, but the increase in cancer incidence was small and not statistically significant.
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Affiliation(s)
- Yen-Hsiu Liao
- a Department of Radiology , China Medical University Hospital , Taichung , Taiwan
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Increased subsequent risk of myasthenia gravis in children with allergic diseases. J Neuroimmunol 2014; 276:202-6. [PMID: 25227584 DOI: 10.1016/j.jneuroim.2014.08.627] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 08/28/2014] [Accepted: 08/31/2014] [Indexed: 12/30/2022]
Abstract
Myasthenia gravis (MG) is an autoimmune disorder that affects the neuromuscular junction. The initiating factors of MG remain unclear. However, allergy has been regarded as a potential risk factor. We included 410 children with MG diagnosed between 2000 and 2008, as well as 1640 randomly selected controls. The odds ratios of MG were calculated to determine the association between MG and preexisting allergic diseases. The children with allergic diseases were at increased subsequent risk of MG, which was associated with the cumulative effect of the concurrent allergic diseases and the frequency of seeking medical care.
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Wei CC, Lin CL, Tsai JD, Shen TC, Sung FC. Increased Incidence of juvenile onset systemic lupus erythematosus in children with atopic dermatitis. Lupus 2014; 23:1494-9. [PMID: 25057040 DOI: 10.1177/0961203314543920] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Herein, we investigated the risk of juvenile-onset systemic lupus erythematosus (JSLE) in children with atopic dermatitis (AD). From 2000 to 2007, 192,357 children with newly diagnosed AD and 769,428 matched non-AD controls were identified. By the end of 2008, incidences and hazard ratios (HRs) of JSLE were measured. JSLE incidence in the AD cohort was 2.90-fold greater than that in the non-AD cohort (3.25 vs. 1.12 per 100,000 person-years), with a Cox model-measured adjusted HR of 2.92 (95% CI: 1.85-4.60); the risk of JSLE was greater for older children and girls. The AD-to-non-AD cohort HR was 6.6 (95% CI: 2.88-13.1) for children aged >12 years compared with 1.81 (95% CI: 0.98-3.32) for children aged ≤ 12 years. The HR of JSLE in AD children increased from 1.55 (95% CI: 0.88-2.76) for those with ≤ 3 clinical visits to 66.3 (95% CI: 33.1-132.8) for those with >6 visits (p < 0.0001, by trend test). The risk of developing SLE in the AD cohort was the highest within five years after AD diagnosis (HR: 4.02; 95% CI: 2.83-7.08). Children with AD are at a high risk of developing JSLE during their growth period.
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Affiliation(s)
- C-C Wei
- Department of Pediatrics, China Medical University Hospital, Taichung, Taiwan College of Medicine, China Medical University, Taichung, Taiwan
| | - C-L Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - J-D Tsai
- Institute of Medicine, Chung Shan Medical University Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - T-C Shen
- College of Medicine, China Medical University, Taichung, Taiwan Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - F-C Sung
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
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Woźniak MM, Osemlak P, Pawelec A, Brodzisz A, Nachulewicz P, Wieczorek AP, Zajączkowska MM. Intraoperative contrast-enhanced urosonography during endoscopic treatment of vesicoureteral reflux in children. Pediatr Radiol 2014; 44:1093-100. [PMID: 24718880 PMCID: PMC4139583 DOI: 10.1007/s00247-014-2963-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/25/2014] [Accepted: 03/05/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND There are many controversies surrounding the effectiveness of endoscopic treatment of vesicouretheral reflux (VUR) in children, thus it is of highest priority to analyze factors influencing the outcome of therapy and to search for new methods that would increase the success rate and reduce the number of reinjections. OBJECTIVE The aim of the study was to analyze whether intraoperative contrast-enhanced urosonography (ce-US) may increase the effectiveness of endoscopic anti-reflux therapy. MATERIALS AND METHODS Intraoperative contrast-enhanced urosonography (ce-US) with SonoVue® was performed in 17 patients (25 ureteral units) undergoing endoscopic treatment of VUR. Ce-US was performed in the operating room before the procedure and after injection of the bulking material. When VUR persisted, the operator repeated the injection, which was followed by ce-US. The results were compared with those obtained from a control group (15 patients; 22 ureteral units). RESULTS A repeat injection during a single endoscopic treatment was required in 24% of cases. The overall success rate confirmed at 6-12 months' follow-ups was 84%. The success rate was significantly higher in comparison to the control group (success: 64%). CONCLUSION Intraoperative ce-US performed during endoscopic treatment of VUR enables immediate monitoring of outcome and provides the opportunity for repeat injection during the same procedure, thus increasing the efficacy of the procedure and reducing the number of reinjections.
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Affiliation(s)
- Magdalena Maria Woźniak
- Department of Pediatric Radiology, Medical University of Lublin, Al. Racławickie 1, 20-059, Lublin, Poland,
| | - Paweł Osemlak
- Department of Pediatric Surgery and Traumatology, Medical University of Lublin, Al. Racławickie 1, Lublin, Poland
| | - Agata Pawelec
- Department of Pediatric Radiology, Medical University of Lublin, Al. Racławickie 1, 20-059 Lublin, Poland
| | - Agnieszka Brodzisz
- Department of Pediatric Radiology, Medical University of Lublin, Al. Racławickie 1, 20-059 Lublin, Poland
| | - Paweł Nachulewicz
- Department of Pediatric Surgery and Traumatology, Medical University of Lublin, Al. Racławickie 1, Lublin, Poland
| | - Andrzej Paweł Wieczorek
- Department of Pediatric Radiology, Medical University of Lublin, Al. Racławickie 1, 20-059 Lublin, Poland
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