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Erbersdobler A. The Pathologist's Role in the Diagnosis of Hirschsprung's Disease. Eur J Pediatr Surg 2024. [PMID: 38996443 DOI: 10.1055/s-0044-1788562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
INTRODUCTION The possibilities, recent advances, and pitfalls in the histopathologic workup of specimens submitted for the diagnosis of Hirschsprung's disease (HSCR) are presented. MATERIALS AND METHODS A literature research was performed in the database PubMed including the years 2000 to 2024. RESULTS The pathologist is involved in the diagnosis of HSCR in three scenarios: (1) the primary diagnosis in a child with the typical clinical symptoms, (2) the intra-operative guidance of surgery in a case where the diagnosis is already established, and (3) the confirmation of the diagnosis and the documentation of the extent of the disease in the resected specimen. Identification of ganglion cells in the enteric neural plexuses excludes HSCR, and the histological confirmation of a complete absence of these ganglion cells is the gold standard for its diagnosis. However, difficulties in the detection of ganglion cells with standard stains and/or a limited amount of tissue in the specimen submitted for diagnosis make supportive histologic stains and techniques, e.g., calretinin immunohistochemistry or acetylcholinesterase histochemistry necessary for an unequivocal diagnosis of HSCR. CONCLUSIONS Improving the diagnostic accuracy of this life-threating disease is an interdisciplinary task. A good communication between pathologist and clinician, as well as mutual knowledge of skills and challenges of the other discipline, is necessary for a successful diagnostic teamwork.
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Izzetti R, Nisi M. Imaging the Micron: New Directions in Diagnosis with Ultra-High-Frequency Ultrasound. Diagnostics (Basel) 2024; 14:735. [PMID: 38611648 PMCID: PMC11012073 DOI: 10.3390/diagnostics14070735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
In recent decades, advancements in medical imaging technologies have revolutionized diagnostic and therapeutic approaches, enhancing the precision and efficacy of healthcare interventions [...].
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Affiliation(s)
- Rossana Izzetti
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy;
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Wu JF, Lin YC, Yang CH, Tseng PH, Tsai IJ, Lin WH, Hsu WM. Clinical utility of anal sphincter relaxation integral in water-perfused and solid-state high-resolution anorectal manometry. J Formos Med Assoc 2024; 123:267-272. [PMID: 37607852 DOI: 10.1016/j.jfma.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/20/2023] [Accepted: 08/09/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND/PURPOSE We investigated the diagnostic performance of the anal sphincter relaxation integral (ASRI) for infants with Hirschsprung's disease (HD). METHODS We performed water-perfused high-resolution anorectal manometry (HRAM) in 18 infants (9 with HD), and solid-state HRAM in another 18 infants (4 with HD). We calculated the ASRI during the rectoanal inhibitory reflex (RAIR) maneuver at pressure cutoffs of <10 mmHg (ASRI 10) and <15 mmHg (ASRI 15). We investigated the diagnostic performance of the ASRI for HD in infants undergoing water-perfused and solid-state HRAM. RESULTS HD infants who underwent either water-perfused or solid-state HRAM had significantly lower ASRI 10 and ASRI 15 values, compared with non-HD infants (P < 0.05 and P < 0.05, respectively). Using the water-perfused HRAM system, ASRI 10 and ASRI 15 values of <7 and <29 mmHg s.cm, respectively, exhibited good diagnostic performance for HD (88.89% and 88.89%, respectively). Receiver operating characteristic curve analysis indicated that ASRI 10 and ASRI 15 values of <5.5 and <20 mmHg s.cm, respectively, were optimal for the diagnosis of HD infants when using the solid-state HRAM system, with high diagnostic accuracies of 83.33% and 83.33%, respectively. CONCLUSION ASRI may assist the diagnosis of HD infants using either water-perfused or solid-state HRAM. These systems require different catheter-specific ASRI cutoffs for the prediction of HD.
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Affiliation(s)
- Jia-Feng Wu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
| | - Yu-Cheng Lin
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Chia-Hsiang Yang
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
| | - Ping-Huei Tseng
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - I-Jung Tsai
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Hsi Lin
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Ming Hsu
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
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Beltman L, Labib H, Masselink M, Backes M, Benninga MA, Roelofs JJTH, van der Voorn JP, van Schuppen J, Oosterlaan J, van Heurn LWE, Derikx JPM. Diagnosing Hirschsprung Disease in Children Younger than 6 Months of Age: Insights in Incidence of Complications of Rectal Suction Biopsy and Other Final Diagnoses. Eur J Pediatr Surg 2023; 33:360-366. [PMID: 36724825 DOI: 10.1055/s-0043-1760839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The gold standard for diagnosing Hirschsprung disease (HD) in patients younger than 6 months is pathological examination of rectal suction biopsy (RSB). The aim of this study was to gain insight into the following: (1) complications following RSB, (2) final diagnosis of patients referred for RSB, and (3) factors associated with HD. METHODS Patients suspected of HD referred for RSB at our center were analyzed retrospectively. Severity of complications of RSB was assessed using Clavien-Dindo (CD) grading. Factors associated with HD were tested using multivariate logistic regression analysis. RESULTS From 2000 to 2021, 371 patients underwent RSB because of infrequent defecation, at a median age of 44 days. Three patients developed ongoing rectal bleeding (0.8%) graded CD1. Most frequent final diagnoses were: HD (n = 151, 40.7%), functional constipation (n = 113, 31%), idiopathic meconium ileus (n = 11, 3%), and food intolerance (n = 11, 3%). Associated factors for HD were male sex (odds ratio [OR], 3.19; confidence interval [CI], 1.56-6.53), presence of syndrome (OR, 7.18; CI, 1.63-31.69), younger age at time of RSB (OR, 0.98; CI, 0.85-0.98), meconium passage for more than 48 hours (OR, 3.15; CI, 1.51-6.56), distended abdomen (OR, 2.09; CI, 1.07-4.07), bilious vomiting (OR, 6.39; CI, 3.28-12.47), and failure to thrive (OR, 8.46; CI, 2.11-34.02) (model R 2 = 0.566). CONCLUSION RSB is a safe procedure with few and only minor complications. In the majority of patients referred for RSB under the age of 6 months, HD was found followed by a functional cause for the defecation problems. RSB should be obtained on a low threshold in all patients under the age of 6 months with the suspicion of HD.
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Affiliation(s)
- Lieke Beltman
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Department of Pediatrics, Emma Children's Hospital Amsterdam UMC Follow-Me Program & Emma Neuroscience Group, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Hosnieya Labib
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Marit Masselink
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - Manouk Backes
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - Marc A Benninga
- Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
- Department of Pediatric Gastroenterology and Nutrition, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - Joris J T H Roelofs
- Department of Pathology, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - J Patrick van der Voorn
- Department of Pathology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Joost van Schuppen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
| | - Jaap Oosterlaan
- Department of Pediatrics, Emma Children's Hospital Amsterdam UMC Follow-Me Program & Emma Neuroscience Group, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - L W Ernest van Heurn
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Joep P M Derikx
- Department of Pediatric Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
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Beltman L, Labib H, Ahmed H, Benninga M, Roelofs J, van der Voorn P, van Schuppen J, Oosterlaan J, van Heurn E, Derikx J. Transition Zone Pull-through in Patients with Hirschsprung Disease: Is Redo Surgery Beneficial for the Long-term Outcomes? J Pediatr Surg 2023; 58:1903-1909. [PMID: 36941171 DOI: 10.1016/j.jpedsurg.2023.02.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/17/2023] [Accepted: 02/08/2023] [Indexed: 02/23/2023]
Abstract
INTRODUCTION Transition zone pull-through (TZPT) is incomplete removal of the aganglionic bowel/transition zone (TZ) in patients with Hirschsprung disease (HD). Evidence on which treatment generates the best long-term outcomes is lacking. The aim of this study was to compare the long-term occurrence of Hirschsprung associated enterocolitis (HAEC), requirement of interventions, functional outcomes and quality of life between patients with TZPT treated conservatively to patients with TZPT treated with redo surgery to non-TZPT patients. METHODS We retrospectively studied patients with TZPT operated between 2000 and 2021. TZPT patients were matched to two control patients with complete removal of the aganglionic/hypoganglionic bowel. Functional outcomes and quality of life was assessed using Hirschsprung/Anorectal Malformation Quality of Life questionnaire and items of Groningen Defecation & Continence together with occurrence of Hirschsprung associated enterocolitis (HAEC) and requirement of interventions. Scores between the groups were compared using One-Way ANOVA. The follow-up duration lasted from time at operation until follow-up. RESULTS Fifteen TZPT-patients (six treated conservatively, nine receiving redo surgery) were matched with 30 control-patients. Median duration of follow-up was 76 months (range 12-260). No significant differences between groups were found in the occurrence of HAEC (p = 0.65), laxatives use (p = 0.33), rectal irrigation use (p = 0.11), botulinum toxin injections (p = 0.06), functional outcomes (p = 0.67) and quality of life (p = 0.63). CONCLUSION Our findings suggest that there are no differences in the long-term occurrence of HAEC, requirement of interventions, functional outcomes and quality of life between patients with TZPT treated conservatively or with redo surgery and non-TZPT patients. Therefore, we suggest to consider conservative treatment in case of TZPT.
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Affiliation(s)
- Lieke Beltman
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Surgery, Meibergdreef 9, Amsterdam, the Netherlands; Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatrics, Emma Children's Hospital Amsterdam UMC Follow-Me Program & Emma Neuroscience Group, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands.
| | - Hosnieya Labib
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Surgery, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Hafsa Ahmed
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Surgery, Meibergdreef 9, Amsterdam, the Netherlands
| | - Marc Benninga
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Gastroenterology and Nutrition, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands
| | - Joris Roelofs
- Amsterdam UMC Location University of Amsterdam, Department of Pathology, Meibergdreef 9, Amsterdam, the Netherlands
| | - Patrick van der Voorn
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Pathology, Boelelaan 1117, Amsterdam, the Netherlands
| | - Joost van Schuppen
- Amsterdam UMC Location University of Amsterdam, Department of Radiology and Nuclear Medicine, Meibergdreef 9, Amsterdam, the Netherlands
| | - Jaap Oosterlaan
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatrics, Emma Children's Hospital Amsterdam UMC Follow-Me Program & Emma Neuroscience Group, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Ernest van Heurn
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Surgery, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
| | - Joep Derikx
- Emma Children's Hospital Amsterdam, Amsterdam UMC Location University of Amsterdam, Department of Pediatric Surgery, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism Research Institute, Amsterdam, the Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, the Netherlands
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Erlöv T, Hawez T, Granéli C, Evertsson M, Jansson T, Stenström P, Cinthio M. A Computer Program for Assessing Histoanatomical Morphometrics in Ultra-High-Frequency Ultrasound Images of the Bowel Wall in Children: Development and Inter-Observer Variability. Diagnostics (Basel) 2023; 13:2759. [PMID: 37685297 PMCID: PMC10486739 DOI: 10.3390/diagnostics13172759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 09/10/2023] Open
Abstract
Ultra-high-frequency ultrasound (UHFUS) has a reported potential to differentiate between aganglionic and ganglionic bowel wall, referred to as histoanatomical differences. A good correlation between histoanatomy and UHFUS of the bowel wall has been proven. In order to perform more precise and objective histoanatomical morphometrics, the main research objective of this study was to develop a computer program for the assessment and automatic calculation of the histoanatomical morphometrics of the bowel wall in UHFUS images. A computer program for UHFUS diagnostics was developed and presented. A user interface was developed in close collaboration between pediatric surgeons and biomedical engineers, to enable interaction with UHFUS images. Images from ex vivo bowel wall samples of 23 children with recto-sigmoid Hirschsprung's disease were inserted. The program calculated both thickness and amplitudes (image whiteness) within different histoanatomical bowel wall layers. Two observers assessed the images using the program and the inter-observer variability was evaluated. There was an excellent agreement between observers, with an intraclass correlation coefficient range of 0.970-0.998. Bland-Altman plots showed flat and narrow distributions. The mean differences ranged from 0.005 to 0.016 mm in thickness and 0 to 0.7 in amplitude units, corresponding to 1.1-3.6% and 0.0-0.8% from the overall mean. The computer program enables and ensures objective, accurate and time-efficient measurements of histoanatomical thicknesses and amplitudes in UHFUS images of the bowel wall. The program can potentially be used for several bowel wall conditions, accelerating research within UHFUS diagnostics.
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Affiliation(s)
- Tobias Erlöv
- Department of Biomedical Engineering, Faculty of Engineering, Lund University, 22363 Lund, Sweden; (T.E.); (M.C.)
| | - Tebin Hawez
- Pediatrics, Department of Clinical Sciences, Faculty of Medicine, Lund University, 22185 Lund, Sweden; (T.H.); (C.G.); (M.E.)
| | - Christina Granéli
- Pediatrics, Department of Clinical Sciences, Faculty of Medicine, Lund University, 22185 Lund, Sweden; (T.H.); (C.G.); (M.E.)
- Department of Pediatric Surgery, Skåne University Hospital Lund, 22185 Lund, Sweden
| | - Maria Evertsson
- Pediatrics, Department of Clinical Sciences, Faculty of Medicine, Lund University, 22185 Lund, Sweden; (T.H.); (C.G.); (M.E.)
- Department of Clinical Sciences Lund, Biomedical Engineering, Lund University, 22363 Lund, Sweden;
| | - Tomas Jansson
- Department of Clinical Sciences Lund, Biomedical Engineering, Lund University, 22363 Lund, Sweden;
- Clinical Engineering Skåne, Digitalisering IT/MT, RegionSkåne, 22185 Lund, Sweden
| | - Pernilla Stenström
- Pediatrics, Department of Clinical Sciences, Faculty of Medicine, Lund University, 22185 Lund, Sweden; (T.H.); (C.G.); (M.E.)
- Department of Pediatric Surgery, Skåne University Hospital Lund, 22185 Lund, Sweden
| | - Magnus Cinthio
- Department of Biomedical Engineering, Faculty of Engineering, Lund University, 22363 Lund, Sweden; (T.E.); (M.C.)
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Letter to the Editor on Beltman L et al. “Diagnostic accuracy of calretinin and acetylcholinesterase staining of rectal suction biopsies in Hirschsprung disease examined by unexperienced pathologists”. Virchows Arch 2022; 481:811-813. [DOI: 10.1007/s00428-022-03409-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 08/26/2022] [Accepted: 09/03/2022] [Indexed: 11/26/2022]
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Determining the correct resection level in patients with Hirschsprung disease using contrast enema and full thickness biopsies: Can the diagnostic accuracy be improved by examining submucosal nerve fiber thickness? J Pediatr Surg 2022:S0022-3468(22)00555-3. [PMID: 36180266 DOI: 10.1016/j.jpedsurg.2022.08.019] [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] [Received: 06/20/2022] [Revised: 08/11/2022] [Accepted: 08/22/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Intraoperative resection level in patients with Hirschsprung disease (HD) is determined by contrast enema, surgeon's intraoperative judgement and full thickness biopsy (FTB) identifying ganglia. This study aims to evaluate diagnostic accuracy of contrast enema and FTB in determination of resection level and whether this can be improved by measuring submucosal nerve fiber diameter. METHODS We retrospectively analyzed contrast enema and intraoperative FTBs obtained in our center, determining diagnostic accuracy for level of resection. Gold standard was pathological examination of resection specimen. Secondly, we matched transition zone pull-through (TZPT) patients with non-TZPT patients, based on age and length of resected bowel, to blindly compare nerve fibers diameters between two groups using group comparison. RESULTS From 2000-2021, 209 patients underwent HD surgery of whom 180 patients (138 males; median age at surgery: 13 weeks) with 18 TZPTs (10%) were included. Positive predictive value of contrast enema was 65.1%. No caliber change was found in patients with total colon aganglionosis (TCA). Negative predictive value of surgeon's intraoperative judgement and FTB in determining resection level was 79.0% and 90.0% (91.2% single-stage, 84.4% two-stage surgery) respectively. Mean nerve fiber diameter in TZPT was 25.01 µm (SD= 5.63) and in non-TZPT 24.35 µm (SD= 6.75) (p = 0.813). CONCLUSION Determination of resection level with combination of contrast enema, surgeon's intraoperative judgement and FTB results in sufficient diagnostic accuracy in patients with HD. If no caliber change is seen with contrast enema, TCA should be considered. Resection level or transition zone cannot be determined by assessment of submucosal nerve fiber diameter in FTB. TYPE OF STUDY clinical research paper.
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Lan C, Liu Y, Wu X, Wang B, Xin S, He Q, Zhong W, Liu Z. Susceptibility of ECE1 polymorphisms to Hirschsprung's disease in southern Chinese children. Front Pediatr 2022; 10:1056938. [PMID: 36619519 PMCID: PMC9813666 DOI: 10.3389/fped.2022.1056938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Hirschsprung's disease (HSCR) is currently considered to be a congenital gastrointestinal malformation caused mainly by genetic factors. Endothelin Converting Enzyme-1 (ECE1) has been reported to be associated with HSCR. However, the relationship between ECE1 single nucleotide polymorphism (SNP) rs169884 and HSCR in the southern Chinese population remains unknown. METHODS 1,470 HSCR patients and 1,473 controls from a southern Chinese population were recruited. The intronic SNP rs169884 in ECE1 was genotyped in all samples. We tested the association between rs169884 and HSCR under various genetic models. We also evaluated the effect of rs169884 on HSCR subtypes, including short-segment HSCR (S-HSCR), long-segment HSCR (L-HSCR) and total colonic aganglionosis (TCA). External epigenetic data were integrated to investigate the potential biological function of rs169884. RESULTS Chromatin states data from derived neuron cells or fetal colon tissue revealed that rs169884 might control ECE1 expression through regulating its enhancer function. We did not find a significant association between rs169884 and HSCR. For HSCR subtypes, although no significant associations were detected between rs169884 and S-HSCR (OR = 1.00, 95% CI: 0.89∼1.12, Padj = 0.77) or TCA (OR = 1.00, 95% CI: 0.72∼1.38, Padj = 0.94), we found that rs169884 could increase the risk of L-HSCR (OR = 1.23, 95% CI 1.02∼1.45, Padj = 0.024). CONCLUSION These results suggested that rs169884 might play a regulatory role for ECE1 expression and increase susceptibility of L-HSCR in southern Chinese children.
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Affiliation(s)
- Chaoting Lan
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yanqing Liu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiao Wu
- Guangzhou Women and Children's Medical Center, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Medical University, Guangzhou, China
| | - Bingtong Wang
- Guangzhou Women and Children's Medical Center, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Medical University, Guangzhou, China
| | | | - Qiuming He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Zhong
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zipeng Liu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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