1
|
Livermore P, Kupiec K, Wedderburn LR, Knight A, Solebo AL, Shafran R, Robert G, Sebire NJ, Gibson F. Designing, Developing, and Testing a Chatbot for Parents and Caregivers of Children and Young People With Rheumatological Conditions (the IMPACT Study): Protocol for a Co-Designed Proof-of-Concept Study. JMIR Res Protoc 2024; 13:e57238. [PMID: 38568725 PMCID: PMC11024752 DOI: 10.2196/57238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Pediatric rheumatology is a term that encompasses over 80 conditions affecting different organs and systems. Children and young people with rheumatological chronic conditions are known to have high levels of mental health problems and therefore are at risk of poor health outcomes. Clinical psychologists can help children and young people manage the daily difficulties of living with one of these conditions; however, there are insufficient pediatric psychologists in the United Kingdom. We urgently need to consider other ways of providing early, essential support to improve their current well-being. One way of doing this is to empower parents and caregivers to have more of the answers that their children and young people need to support them further between their hospital appointments. OBJECTIVE The objective of this co-designed proof-of-concept study is to design, develop, and test a chatbot intervention to support parents and caregivers of children and young people with rheumatological conditions. METHODS This study will explore the needs and views of children and young people with rheumatological conditions, their siblings, parents, and caregivers, as well as health care professionals working in pediatric rheumatology. We will ask approximately 100 participants in focus groups where they think the gaps are in current clinical care and what ideas they have for improving upon them. Creative experience-based co-design workshops will then decide upon top priorities to develop further while informing the appearance, functionality, and practical delivery of a chatbot intervention. Upon completion of a minimum viable product, approximately 100 parents and caregivers will user-test the chatbot intervention in an iterative sprint methodology to determine its worth as a mechanism for support for parents. RESULTS A total of 73 children, young people, parents, caregivers, and health care professionals have so far been enrolled in the study, which began in November 2023. The anticipated completion date of the study is April 2026. The data analysis is expected to be completed in January 2026, with the results being published in April 2026. CONCLUSIONS This study will provide evidence on the accessibility, acceptability, and usability of a chatbot intervention for parents and caregivers of children and young people with rheumatological conditions. If proven useful, it could lead to a future efficacy trial of one of the first chatbot interventions to provide targeted and user-suggested support for parents and caregivers of children with chronic health conditions in health care services. This study is unique in that it will detail the needs and wants of children, young people, siblings, parents, and caregivers to improve the current support given to families living with pediatric rheumatological conditions. It will be conducted across the whole of the United Kingdom for all pediatric rheumatological conditions at all stages of the disease trajectory. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/57238.
Collapse
Affiliation(s)
- Polly Livermore
- Rheumatology Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
- NIHR Biomedical Research Centre at Great Ormond Street Hospital for Children, London, United Kingdom
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
- Centre for Adolescent Rheumatology Versus Arthritis at UCL, UCLH and GOSH, London, United Kingdom
| | - Klaudia Kupiec
- Rheumatology Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Lucy R Wedderburn
- NIHR Biomedical Research Centre at Great Ormond Street Hospital for Children, London, United Kingdom
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
- Centre for Adolescent Rheumatology Versus Arthritis at UCL, UCLH and GOSH, London, United Kingdom
| | - Andrea Knight
- Division of Rheumatology, The Hospital for Sick Children, Toronto, ON, Canada
- Neurosciences and Mental Health Program, SickKids Research Institute, Toronto, ON, Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Ameenat L Solebo
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
- Opthamology Department, Great Ormond Street Children's Hospital NHS Foundation Trust, London, United Kingdom
| | - Roz Shafran
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | | | - N J Sebire
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Faith Gibson
- School of Health Sciences, University of Surrey, Surrey, United Kingdom
- Director of Research - Nursing and Allied Health, Great Ormond Street Children's Hospital, London, United Kingdom
| |
Collapse
|
2
|
Beesley MA, Davidson JR, Panariello F, Shibuya S, Scaglioni D, Jones BC, Maksym K, Ogunbiyi O, Sebire NJ, Cacchiarelli D, David AL, De Coppi P, Gerli MFM. COVID-19 and vertical transmission: assessing the expression of ACE2/TMPRSS2 in the human fetus and placenta to assess the risk of SARS-CoV-2 infection. BJOG 2022; 129:256-266. [PMID: 34735736 PMCID: PMC8652560 DOI: 10.1111/1471-0528.16974] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Pregnant women have been identified as a potentially at-risk group concerning COVID-19 infection, but little is known regarding the susceptibility of the fetus to infection. Co-expression of ACE2 and TMPRSS2 has been identified as a prerequisite for infection, and expression across different tissues is known to vary between children and adults. However, the expression of these proteins in the fetus is unknown. METHODS We performed a retrospective analysis of a single cell data repository. The data were then validated at both gene and protein level by performing RT-qPCR and two-colour immunohistochemistry on a library of second-trimester human fetal tissues. FINDINGS TMPRSS2 is present at both gene and protein level in the predominantly epithelial fetal tissues analysed. ACE2 is present at significant levels only in the fetal intestine and kidney, and is not expressed in the fetal lung. The placenta also does not co-express the two proteins across the second trimester or at term. INTERPRETATION This dataset indicates that the lungs are unlikely to be a viable route of SARS-CoV2 fetal infection. The fetal kidney, despite presenting both the proteins required for the infection, is anatomically protected from the exposure to the virus. However, the gastrointestinal tract is likely to be susceptible to infection due to its high co-expression of both proteins, as well as its exposure to potentially infected amniotic fluid. TWEETABLE ABSTRACT This work provides detailed mechanistic insight into the relative protection & vulnerabilities of the fetus & placenta to SARS-CoV-2 infection by scRNAseq & protein expression analysis for ACE2 & TMPRSS2. The findings help to explain the low rate of vertical transmission.
Collapse
Affiliation(s)
- MA Beesley
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
| | - JR Davidson
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
- EGA Institute for Women’s HealthUniversity College LondonUK
| | - F Panariello
- Telethon Institute of Genetics and Medicine (TIGEM)Armenise/Harvard Laboratory of Integrative GenomicsPozzuoliItaly
| | - S Shibuya
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
| | - D Scaglioni
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
| | - BC Jones
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
| | - K Maksym
- EGA Institute for Women’s HealthUniversity College LondonUK
| | - O Ogunbiyi
- NIHR Great Ormond Street Biomedical Research CentreLondonUK
| | - NJ Sebire
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
- Department of Translational MedicineUniversity of Naples ‘Federico II’NaplesItaly
| | - D Cacchiarelli
- Telethon Institute of Genetics and Medicine (TIGEM)Armenise/Harvard Laboratory of Integrative GenomicsPozzuoliItaly
- Department of Translational MedicineUniversity of Naples ‘Federico II’NaplesItaly
| | - AL David
- EGA Institute for Women’s HealthUniversity College LondonUK
- Fetal Medicine UnitUniversity College London NHS Foundation TrustLondonUK
| | - P De Coppi
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
- NIHR Great Ormond Street Biomedical Research CentreLondonUK
- Great Ormond Street Hospital for ChildrenLondonUK
| | - MFM Gerli
- Great Ormond Street Institute of Child HealthUniversity College LondonUK
- UCL Division of Surgery and Interventional ScienceRoyal Free HospitalLondonUK
| |
Collapse
|
3
|
Shelmerdine SC, Sebire NJ, Calder AD, Arthurs OJ. Three-dimensional cinematic rendering of fetal skeletal dysplasia using postmortem computed tomography. Ultrasound Obstet Gynecol 2021; 57:659-660. [PMID: 33038273 DOI: 10.1002/uog.23140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Affiliation(s)
- S C Shelmerdine
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - N J Sebire
- UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - A D Calder
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| |
Collapse
|
4
|
Shelmerdine SC, Sebire NJ, Arthurs OJ. Diagnostic accuracy of postmortem ultrasound vs postmortem 1.5-T MRI for non-invasive perinatal autopsy. Ultrasound Obstet Gynecol 2021; 57:449-458. [PMID: 32149428 PMCID: PMC8432154 DOI: 10.1002/uog.22012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/12/2019] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
OBJECTIVES To determine the diagnostic accuracy of postmortem magnetic resonance imaging (PM-MRI) and postmortem ultrasound (PM-US) for perinatal autopsy in the same patient cohort, and to determine whether PM-US can provide the same anatomical information as PM-MRI. METHODS In this prospective, 5-year (July 2014-July 2019) single-center study, we performed 1.5-T PM-MRI and PM-US in an unselected cohort of perinatal deaths. The diagnostic accuracies of both modalities were calculated, using autopsy as the reference standard. As a secondary objective, the concordance rates between the two imaging modalities for the overall main diagnosis and for five anatomical regions (brain, spine, thorax, heart and abdomen) were calculated. RESULTS During the study period, 136 cases underwent both PM-US and PM-MRI, of which 88 (64.7%) also underwent autopsy. There was no significant difference in the rates of concordance with autopsy between the two modalities for overall diagnosis (PM-US, 86.4% (95% CI, 77.7-92.0%) vs PM-MRI, 88.6% (95% CI, 80.3-93.7%)) or in the sensitivities and specificities for individual anatomical regions. There were more non-diagnostic PM-US than PM-MRI examinations for the brain (22.8% vs 3.7%) and heart (14.7% vs 5.1%). If an 'imaging-only' autopsy had been performed, PM-US would have achieved the same diagnosis as 1.5-T PM-MRI in 86.8% (95% CI, 80.0-91.5%) of cases, with the highest rates of agreement being for spine (99.3% (95% CI, 95.9-99.9%)) and cardiac (97.3% (95% CI, 92.4-99.1%)) findings and the lowest being for brain diagnoses (85.2% (95% CI, 76.9-90.8%)). CONCLUSION Although there were fewer non-diagnostic cases using PM-MRI than for PM-US, the high concordance rate for overall diagnosis suggests that PM-US could be used for triaging cases when PM-MRI access is limited or unavailable. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- S. C. Shelmerdine
- Department of Clinical RadiologyGreat Ormond Street Hospital for ChildrenLondonUK
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
| | - N. J. Sebire
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
- NIHR Great Ormond Street Hospital Biomedical Research CentreLondonUK
| | - O. J. Arthurs
- Department of Clinical RadiologyGreat Ormond Street Hospital for ChildrenLondonUK
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
- NIHR Great Ormond Street Hospital Biomedical Research CentreLondonUK
| |
Collapse
|
5
|
Shelmerdine SC, Hutchinson JC, Ward L, Sekar T, Ashworth MT, Levine S, Sebire NJ, Arthurs OJ. Feasibility of INTACT (INcisionless TArgeted Core Tissue) biopsy procedure for perinatal autopsy. Ultrasound Obstet Gynecol 2020; 55:667-675. [PMID: 31271478 PMCID: PMC7317589 DOI: 10.1002/uog.20387] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVES To determine the feasibility and tissue yield of a perinatal incisionless ultrasound-guided biopsy procedure, the INcisionless Targeted Core Tissue (INTACT) technique, in the context of minimally invasive autopsy. METHODS Cases of perinatal death in which the parents consented for minimally invasive autopsy underwent postmortem magnetic resonance imaging and an INTACT biopsy procedure, defined as needle biopsy of organs via the umbilical cord, performed under ultrasound guidance. In each case, three cores of tissue were obtained from seven target organs (both lungs, both kidneys, heart, spleen and liver). Biopsy success was predefined as an adequate volume of the intended target organ for pathological analysis, as judged by a pathologist blinded to the case and biopsy procedure. RESULTS Thirty fetuses underwent organ sampling. Mean gestational age was 30 weeks (range, 18-40 weeks) and mean delivery-to-biopsy interval was 12 days (range, 6-22 days). The overall biopsy success rate was 153/201 (76.1%) samples, with the success rates in individual organs being highest for the heart and lungs (93% and 91%, respectively) and lowest for the spleen (11%). Excluding splenic samples, the biopsy success rate was 150/173 (86.7%). Histological abnormalities were found in 4/201 (2%) samples, all of which occurred in the lungs and kidneys of a fetus with pulmonary hypoplasia and multicystic kidney disease. CONCLUSIONS Incisionless ultrasound-guided organ biopsy using the INTACT procedure is feasible, with an overall biopsy success rate of over 75%. This novel technique offers the ideal combination of an imaging-led autopsy with organ sampling for parents who decline the conventional invasive approach. © 2019 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- S. C. Shelmerdine
- Department of Clinical RadiologyGreat Ormond Street Hospital for ChildrenLondonUK
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
| | - J. C. Hutchinson
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - L. Ward
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - T. Sekar
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - M. T. Ashworth
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - S. Levine
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - N. J. Sebire
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
- Department of HistopathologyGreat Ormond Street Hospital for ChildrenLondonUK
| | - O. J. Arthurs
- Department of Clinical RadiologyGreat Ormond Street Hospital for ChildrenLondonUK
- UCL Great Ormond Street Institute of Child HealthGreat Ormond Street Hospital for ChildrenLondonUK
| |
Collapse
|
6
|
Reid C, Arthurs OJ, Calder AD, Sebire NJ, Shelmerdine SC. The significance of internal calcifications on perinatal post-mortem radiographs. Clin Radiol 2020; 75:561.e25-561.e34. [PMID: 32252991 PMCID: PMC7296345 DOI: 10.1016/j.crad.2020.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 03/06/2020] [Indexed: 11/29/2022]
Abstract
AIM To determine whether the presence of internal calcifications on perinatal post-mortem skeletal surveys (PMSS) are associated with certain diagnoses of fetal loss. METHODS AND MATERIALS A 6-month retrospective, single-centre, cohort study was conducted on PMSS performed for perinatal death assessment. One reader re-reviewed all PMSS images for the presence and location of internal calcifications, and noted whether these were included within the original radiology report. Findings at autopsy were then reviewed independently by a second researcher and cause of fetal loss or main diagnosis recorded. Chi-squared tests were conducted to identify differences between those with and without internal calcifications at PMSS. RESULTS Two hundred and thirty perinatal deaths (mean gestational age 18 weeks; average 12–35 weeks) were included in the study, of which 42 (18.3%) demonstrated intra-abdominal calcifications, and 16/42 (38.1%) were mentioned in the radiology reports. Most calcifications were found to be within the lumen of the gastrointestinal tract, and in the left upper quadrant of the abdomen. There was no statistical difference between identifiable causes for fetal loss at autopsy in cases with and without calcification at PMSS (59.5% versus 58.5% respectively, p=0.904). Nevertheless, where calcification and a cause for fetal loss were found, the aetiology was more likely to be due a fetal rather than placental issue. CONCLUSION The presence of internal calcifications on PMSS was not associated with an increased likelihood of explainable fetal loss or particular diagnosis at autopsy. Fetal calcifications on post-mortem skeletal surveys are not significantly associated with causes of fetal loss. When present, internal calcifications were usually seen in lower gestational aged fetuses, intra-abdominal in location, with the majority being intraluminal. The majority of radiologists do not report internal fetal calcifications on radiographs, without significant consequences for final outcome at autopsy.
Collapse
Affiliation(s)
- C Reid
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK
| | - O J Arthurs
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, London, UK
| | - A D Calder
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK
| | - N J Sebire
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, London, UK
| | - S C Shelmerdine
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK.
| |
Collapse
|
7
|
Frijstein MM, Lok CAR, Trommel NE, ten Kate‐Booij MJ, Massuger LFAG, Werkhoven E, Short D, Aguiar X, Fisher RA, Kaur B, Sarwar N, Sebire NJ, Seckl MJ. Lung metastases in low‐risk gestational trophoblastic neoplasia: a retrospective cohort study. BJOG 2019; 127:389-395. [DOI: 10.1111/1471-0528.16036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2019] [Indexed: 12/01/2022]
Affiliation(s)
- MM Frijstein
- Department of Gynaecological Oncology Centre of Gynaecological Oncology Amsterdam Amsterdam the Netherlands
- Department of Obstetrics and Gynaecology Erasmus University Medical Centre Rotterdam the Netherlands
- Department of Obstetrics and Gynaecology Radboud University Medical Centre Nijmegen the Netherlands
| | - CAR Lok
- Department of Gynaecological Oncology Centre of Gynaecological Oncology Amsterdam Amsterdam the Netherlands
| | - NE Trommel
- Department of Gynaecological Oncology Centre of Gynaecological Oncology Amsterdam Amsterdam the Netherlands
| | - MJ ten Kate‐Booij
- Department of Obstetrics and Gynaecology Erasmus University Medical Centre Rotterdam the Netherlands
| | - LFAG Massuger
- Department of Obstetrics and Gynaecology Radboud University Medical Centre Nijmegen the Netherlands
| | - E Werkhoven
- Department of Biometrics Netherlands Cancer Institute – Antoni van Leeuwenhoek Amsterdam the Netherlands
| | - D Short
- Department of Medical Oncology Charing Cross Hospital London UK
| | - X Aguiar
- Department of Medical Oncology Charing Cross Hospital London UK
| | - RA Fisher
- Department of Medical Oncology Charing Cross Hospital London UK
| | - B Kaur
- Department of Medical Oncology Charing Cross Hospital London UK
| | - N Sarwar
- Department of Medical Oncology Charing Cross Hospital London UK
| | - NJ Sebire
- Department of Medical Oncology Charing Cross Hospital London UK
| | - MJ Seckl
- Department of Medical Oncology Charing Cross Hospital London UK
| |
Collapse
|
8
|
Kang X, Sanchez TC, Arthurs OJ, Bevilacqua E, Cannie MM, Segers V, Lecomte S, Sebire NJ, Jani JC. Postmortem fetal imaging: prospective blinded comparison of two-dimensional ultrasound with magnetic resonance imaging. Ultrasound Obstet Gynecol 2019; 54:791-799. [PMID: 30644623 DOI: 10.1002/uog.20217] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 12/07/2018] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To compare the diagnostic rate and accuracy of 3-Tesla (T) postmortem magnetic resonance imaging (PM-MRI) and postmortem ultrasound (PM-US) in an unselected fetal population. METHODS We performed prospectively, in a blinded manner, 3-T PM-MRI and PM-US on 160 unselected fetuses at 13-41 weeks of gestation. All imaging was reported according to a prespecified template, for five anatomical regions: brain, thorax, heart, abdomen and spine. The rates of non-diagnostic results for PM-US and PM-MRI were compared and, for results that were diagnostic, we calculated sensitivity, specificity and concordance rates for each anatomical region, using conventional autopsy as the reference standard. RESULTS 3-T PM-MRI performed significantly better than did PM-US overall and in particular for fetuses ≥ 20 weeks' gestation. Specifically, the non-diagnostic rates for PM-MRI vs PM-US were 4.4% vs 26.9% (7/160 vs 43/160; P < 0.001) for the brain, 5.2% vs 17.4% (8/155 vs 27/155; P < 0.001) for the thorax, 3.8% vs 30.6% (6/157 vs 48/157; P < 0.001) for the heart and 3.2% vs 23.6% (5/157 vs 37/157; P < 0.001) for the abdomen. For the spine, both techniques showed an equally low non-diagnostic rate. When both postmortem imaging techniques were diagnostic, they had similar accuracy, with no difference in sensitivity or specificity, and similar concordance with autopsy (PM-US, 79.5-96.5%; PM-MRI, 81.6-99.1%). CONCLUSIONS PM-MRI performed significantly better than PM-US in this unselected population, due mainly to a lower non-diagnostic rate. PM-MRI should remain the first-line imaging investigation for perinatal autopsy, but PM-US could be considered if MRI is not available, albeit with a higher non-diagnostic rate. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- X Kang
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - T Cos Sanchez
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - O J Arthurs
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - E Bevilacqua
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - M M Cannie
- Department of Radiology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
- Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - V Segers
- Department of Feto-Pathology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - S Lecomte
- Department of Feto-Pathology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - N J Sebire
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - J C Jani
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| |
Collapse
|
9
|
Hutchinson JC, Shelmerdine SC, Lewis C, Parmenter J, Simcock IC, Ward L, Ashworth MT, Chitty LS, Arthurs OJ, Sebire NJ. Minimally invasive perinatal and pediatric autopsy with laparoscopically assisted tissue sampling: feasibility and experience of the MinImAL procedure. Ultrasound Obstet Gynecol 2019; 54:661-669. [PMID: 30620444 DOI: 10.1002/uog.20211] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/21/2018] [Accepted: 12/31/2018] [Indexed: 05/13/2023]
Abstract
OBJECTIVE Less invasive autopsy techniques in cases of fetal or infant death have good acceptability among parents, but the published sampling adequacy in needle biopsy studies is generally poor. Minimally Invasive Autopsy with Laparoscopically assisted sampling (MinImAL) has the potential to increase the diagnostic yield of less invasive autopsy by improving the quality and quantity of tissue samples obtained, whilst permitting visualization, extraction and examination of internal organs through a small incision. The aim of this study was to present the findings of our experience with the MinImAL procedure in cases of fetal, neonatal and pediatric death. METHODS This was a retrospective analysis of 103 prospectively recruited unselected cases of fetal, neonatal or pediatric death that underwent the MinImAL procedure at a tertiary referral center over a 5-year period. Following preprocedure 1.5-T whole-body postmortem magnetic resonance imaging, MinImAL autopsy was performed. Procedure duration, sampling adequacy and cause of death were assessed. Chi-square analysis was used to compare the 'unexplained' rate of intrauterine deaths in the cohort with that in a previously published cohort of > 1000 cases of intrauterine death examined by standard autopsy. RESULTS MinImAL autopsy was performed successfully in 97.8% (91/93) of the cases undergoing a complete procedure. There was a satisfactory rate of adequate histological sampling in most major organs; heart (100%, 91 cases), lung (100%, 91 cases), kidney (100%, 91 cases), liver (96.7%, 88 cases), spleen (94.5%, 86 cases), adrenal glands (89.0%, 81 cases), pancreas (82.4%, 75 cases) and thymus (56.0%, 51 cases). Procedure duration was similar to that of standard autopsy in a previously published cohort of intrauterine deaths. The unexplained rate in stillbirths and intrauterine fetal deaths that underwent MinImAL autopsy was not significantly different from that following standard autopsy. CONCLUSIONS The MinImAL procedure provides good histological yield from major organs with minimal cosmetic damage and can be learned by an autopsy practitioner. The MinImAL procedure is an appropriate minimally invasive alternative for the investigation of perinatal and pediatric deaths in which consent to full autopsy is withheld, and may have applications in both high- and low/middle-income settings. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J C Hutchinson
- Department of Histopathology, Great Ormond Street Hospital for Children, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - S C Shelmerdine
- UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Paediatric Radiology, Great Ormond Street Hospital for Children NHS Trust, London, UK
| | - C Lewis
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Genetics and Genomic Medicine, UCL Great Ormond Street Institute of Child Health, London, UK
| | - J Parmenter
- Department of Histopathology, Great Ormond Street Hospital for Children, London, UK
| | - I C Simcock
- UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Paediatric Radiology, Great Ormond Street Hospital for Children NHS Trust, London, UK
| | - L Ward
- Department of Histopathology, Great Ormond Street Hospital for Children, London, UK
| | - M T Ashworth
- Department of Histopathology, Great Ormond Street Hospital for Children, London, UK
| | - L S Chitty
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Genetics and Genomic Medicine, UCL Great Ormond Street Institute of Child Health, London, UK
| | - O J Arthurs
- UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Paediatric Radiology, Great Ormond Street Hospital for Children NHS Trust, London, UK
| | - N J Sebire
- Department of Histopathology, Great Ormond Street Hospital for Children, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| |
Collapse
|
10
|
Polubothu S, McGuire N, Al-Olabi L, Baird W, Bulstrode N, Chalker J, Josifova D, Lomas D, O'Hara J, Ong J, Rampling D, Stadnik P, Thomas A, Wedgeworth E, Sebire NJ, Kinsler VA. Does the gene matter? Genotype-phenotype and genotype-outcome associations in congenital melanocytic naevi. Br J Dermatol 2019; 182:434-443. [PMID: 31111470 PMCID: PMC7028140 DOI: 10.1111/bjd.18106] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2019] [Indexed: 12/29/2022]
Abstract
Background Genotype–phenotype studies can identify subgroups of patients with specific clinical features or differing outcomes, which can help shape management. Objectives To characterize the frequency of different causative genotypes in congenital melanocytic naevi (CMN), and to investigate genotype–phenotype and genotype–outcome associations. Methods We conducted a large cohort study in which we undertook MC1R genotyping from blood, and high‐sensitivity genotyping of NRAS and BRAF hotspots in 156 naevus biopsies from 134 patients with CMN [male 40%; multiple CMN 76%; projected adult size (PAS) > 20 cm, 59%]. Results Mosaic NRAS mutations were detected in 68%, mutually exclusive with BRAF mutations in 7%, with double wild‐type in 25%. Two separate naevi were sequenced in five of seven patients with BRAF mutations, confirming clonality. Five of seven patients with BRAF mutations had a dramatic multinodular phenotype, with characteristic histology distinct from classical proliferative nodules. NRAS mutation was the commonest in all sizes of CMN, but was particularly common in naevi with PAS > 60 cm, implying more tolerance to that mutation early in embryogenesis. Facial features were less common in double wild‐type patients. Importantly, the incidence of congenital neurological disease, and apparently of melanoma, was not altered by genotype; no cases of melanoma were seen in BRAF‐mutant multiple CMN, however, this genotype is rare. Conclusions CMN of all sizes are most commonly caused by mutations in NRAS. BRAF is confirmed as a much rarer cause of multiple CMN, and appears to be commonly associated with a multinodular phenotype. Genotype in this cohort was not associated with differences in incidence of neurological disease in childhood. However, genotyping should be undertaken in suspected melanoma, for guidance of treatment. What's already known about this topic? Multiple congenital melanocytic naevi (CMN) have been shown to be caused by NRAS mosaic mutations in 70–80% of cases, by BRAF mosaicism in one case report and by inference in some previous cases. There has been debate about genotypic association with different sizes of CMN, and no data on genotype–outcome.
What does this study add? NRAS mosaicism was found in 68%, BRAF in 7% and double wild‐type in 25% of cases of CMN. NRAS was the commonest mutation in all sizes of CMN, but was nearly universal in projected adult size > 60 cm. BRAF is often associated with a distinct multinodular clinical/histological phenotype. Adverse outcomes did not differ between genotypes on current numbers.
https://doi.org/10.1111/bjd.18747 available online
Collapse
Affiliation(s)
- S Polubothu
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K.,Paediatric Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - N McGuire
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K
| | - L Al-Olabi
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K
| | - W Baird
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K
| | - N Bulstrode
- Paediatric Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - J Chalker
- Paediatric Malignancy Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - D Josifova
- Clinical Genetics, Guy's and St Thomas' Hospital NHS Foundation Trust, U.K
| | - D Lomas
- Paediatric Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - J O'Hara
- Paediatric Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - J Ong
- Paediatric Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - D Rampling
- Paediatric Pathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - P Stadnik
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K
| | - A Thomas
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K
| | - E Wedgeworth
- Department of Dermatology, Guy's and St Thomas' Hospital NHS Foundation Trust, U.K
| | - N J Sebire
- Paediatric Pathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - V A Kinsler
- Genetics and Genomic Medicine, University College London Great Ormond Street Institute of Child Health, London, U.K.,Paediatric Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| |
Collapse
|
11
|
Shelmerdine SC, Singh M, Norman W, Jones R, Sebire NJ, Arthurs OJ. Automated data extraction and report analysis in computer-aided radiology audit: practice implications from post-mortem paediatric imaging. Clin Radiol 2019; 74:733.e11-733.e18. [PMID: 31160039 DOI: 10.1016/j.crad.2019.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/24/2019] [Indexed: 10/26/2022]
Abstract
AIM To determine local departmental adherence to the paediatric post-mortem magnetic resonance imaging (MRI) protocols, using a customised automated computational approach. MATERIALS AND METHODS A retrospective review of 460 whole-body post-mortem MRI examinations performed at Great Ormond Street Hospital for Children over a 5.5-year period was assessed for adherence to a full or abbreviated imaging sequence protocol. A simple computer program was developed to batch process DICOM (digital imaging and communications in medicine) files, extracting imaging sequence details, followed by natural language processing (NLP) of authorised reports to automate information extraction of diagnostic image quality. RESULTS The program was able to extract study parameters from the entire dataset (approximately 80 GB of data) in a few hours, and retrieve information on diagnostic image quality using NLP with an overall diagnostic accuracy for data extraction of 96.7% (445/460, 95% confidence interval [CI]: 94.7-98%). The full imaging protocol was adhered to in 305/460 (66.3%) cases, and an abbreviated protocol in 140/460 (30.4%) cases. Overall, 423/460 (91.9%) of studies were of diagnostic quality. These included 298/305 (97.7%) of the full protocol, 111/140 (79.3%) of the abbreviated protocol. In only five cases were the examinations non-diagnostic for all body systems, all of whom weighed <100 g (24.7-72 g) and imaged using the abbreviated protocol. CONCLUSION The present study demonstrated a successful application of an automated approach for data collection for audit and quality assessment purposes using paediatric post-mortem imaging as a specific example. Re-audit of these data following change implementation will be straightforward now that the automated workflow is clearly established.
Collapse
Affiliation(s)
- S C Shelmerdine
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; UCL Great Ormond Street Institute of Child Health, London, UK.
| | - M Singh
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - W Norman
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - R Jones
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - N J Sebire
- UCL Great Ormond Street Institute of Child Health, London, UK; Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; UCL Great Ormond Street Institute of Child Health, London, UK
| |
Collapse
|
12
|
Priestman W, Collins R, Vigne H, Sridharan S, Seamer L, Bowen D, Sebire NJ. Lessons learned from a comprehensive electronic patient record procurement process-implications for healthcare organisations. BMJ Health Care Inform 2019; 26:bmjhci-2019-000020. [PMID: 31072821 PMCID: PMC7062322 DOI: 10.1136/bmjhci-2019-000020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 02/19/2019] [Accepted: 02/27/2019] [Indexed: 11/21/2022] Open
Abstract
Background This study describes learning from procurement of a comprehensive electronic patient record (EPR/electronic health record (EHR)), system for a specialist clinical academic institution. Method Retrospective review of procurement process in addition to evaluation of peer-reviewed literature in the field. Results Main lessons learned include the importance of detailed preparation of organisational requirements/specifications and organisational ‘readiness’. Early staff involvement, resulting in ownership of the selected system by the organisation was a key achievement. The scoring process used required significant resource commitment but, despite being extensive in scope, provided relatively poor distinction between suppliers, despite significant variation in supplier self-scoring. Other elements, such as demonstrations and site visits, provided superior evaluation of functional abilities, and specification requirements should be regarded as threshold evaluation. Conclusion While principles should be followed, the procurement process must be modified to meet the needs of the specific organisation, in terms of its clinical activities, digital maturity, existing infrastructure and budget.
Collapse
Affiliation(s)
| | | | | | | | | | | | - N J Sebire
- Histopathology Department, Level 3 Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| |
Collapse
|
13
|
Lewis C, Riddington M, Hill M, Arthurs OJ, Hutchinson JC, Chitty LS, Bevan C, Fisher J, Ward J, Sebire NJ. Availability of less invasive prenatal, perinatal and paediatric autopsy will improve uptake rates: a mixed-methods study with bereaved parents. BJOG 2019; 126:745-753. [PMID: 30576088 PMCID: PMC6519272 DOI: 10.1111/1471-0528.15591] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2018] [Indexed: 11/30/2022]
Abstract
Objective To investigate whether less invasive methods of autopsy would be acceptable to bereaved parents and likely to increase uptake. Design Mixed methods study. Setting Bereaved parents recruited prospectively across seven hospitals in England and retrospectively through four parent support organisations. Sample Eight hundred and fifty‐nine surveys and 20 interviews with bereaved parents. Methods Cross‐sectional survey and qualitative semi‐structured telephone interviews. Main outcome measures Likely uptake, preferences, factors impacting decision‐making, views on different autopsy methods. Results Overall, 90.5% of participants indicated that they would consent to some form of less invasive autopsy [either minimally invasive autopsy (MIA), non‐invasive autopsy (NIA) or both]; 53.8% would consent to standard autopsy, 74.3% to MIA and 77.3% to NIA. Regarding parental preferences, 45.5% preferred MIA, 30.8% preferred NIA and 14.3% preferred standard autopsy. Participants who indicated they would decline standard autopsy but would consent to a less invasive option were significantly more likely to have a lower educational level (odds ratio 0.49; 95% CI 0.35–0.70; P = 0.000062). Qualitative findings suggest that parents value NIA because of the lack of any incision and MIA is considered a good compromise as it enables tissue sampling while easing the parental burden associated with consenting to standard autopsy. Conclusion Less invasive methods of autopsy are acceptable alternatives for bereaved parents, and if offered, are likely to increase uptake and improve parental experience. Further health economic, validation and implementation studies are now required to assess the viability of offering these in routine widespread clinical care. Tweetable abstract Mixed methods UK study finds less invasive methods of autopsy are acceptable alternatives for bereaved parents, and if offered, are likely to increase uptake and improve parental experience. Mixed methods UK study finds less invasive methods of autopsy are acceptable alternatives for bereaved parents, and if offered, are likely to increase uptake and improve parental experience.
Collapse
Affiliation(s)
- C Lewis
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Genetics and Genomic Medicine, The UCL Great Ormond Street Institute of Child Health, London, UK
| | - M Riddington
- Department of Psychological Services, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - M Hill
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Genetics and Genomic Medicine, The UCL Great Ormond Street Institute of Child Health, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - J C Hutchinson
- Department of Histopathology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - L S Chitty
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,Genetics and Genomic Medicine, The UCL Great Ormond Street Institute of Child Health, London, UK
| | - C Bevan
- Stillbirth and neonatal death charity (Sands), London, UK
| | - J Fisher
- Antenatal Results and Choices (ARC), London, UK
| | - J Ward
- The Lullaby Trust, London, UK
| | - N J Sebire
- Department of Histopathology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.,The UCL Great Ormond Street Institute of Child Health, London, UK
| |
Collapse
|
14
|
Kang X, Shelmerdine SC, Hurtado I, Bevilacqua E, Hutchinson C, Mandalia U, Segers V, Cos Sanchez T, Cannie MM, Carlin A, Sebire NJ, Arthurs OJ, Jani JC. Postmortem examination of human fetuses: comparison of two-dimensional ultrasound with invasive autopsy. Ultrasound Obstet Gynecol 2019; 53:229-238. [PMID: 28782198 DOI: 10.1002/uog.18828] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 06/09/2017] [Accepted: 07/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To assess the diagnostic accuracy of postmortem ultrasound performed by operators blinded to prenatal findings and to invasive autopsy results in fetuses at different gestational ages and to investigate the effect of various parameters on its diagnostic success. METHODS We performed postmortem two-dimensional ultrasound examination, blinded to clinical details, on 163 fetuses at 13-42 weeks' gestation. Logistic regression analysis was used to investigate the effect of: (i) gestational age at postmortem ultrasound, (ii) presence of maceration and (iii) mode of death, on whether the exam succeeded or failed to reach a diagnosis. In 123 cases in which invasive autopsy was available, the diagnostic accuracy of ultrasound in detecting major organ abnormalities was evaluated, using invasive autopsy as the gold standard. RESULTS For the fetal brain, postmortem ultrasound exam was non-diagnostic in significantly more fetuses with maceration (39.5%; 17/43) vs those without maceration (20.0%; 24/120) (P = 0.013). For the fetal thorax, the exam was non-diagnostic in 34.1% (15/44) of fetuses < 20 weeks of gestation and in 10.9% (13/119) of fetuses ≥ 20 weeks (P < 0.001). For the heart and abdominal organs, there was no association between non-diagnostic postmortem ultrasound and the variables tested. For fetuses < 20 weeks, specificity of postmortem ultrasound examination was 83.3% for detection of anomalies of the brain, 68.6% for the thorax and 77.4% for the heart. For fetuses ≥ 20 weeks, sensitivity and specificity were, respectively, 61.9% and 74.2% for detection of anomalies of the brain, 29.5% and 87.0% for the thorax and 65.0% and 83.1% for the heart. For the fetal abdominal organs, sensitivity was 60.7% and specificity 75.8%, and postmortem ultrasound was particularly useful for detection of abnormalities of the kidneys, irrespective of gestational age. CONCLUSION Although maceration may lead to failure of postmortem ultrasound examination in some cases, this technique achieves diagnostically acceptable levels of accuracy for fetal brain and abdominal organs, compared with conventional autopsy. It may therefore play a role as a first-line examination before other virtual autopsy techniques are indicated. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- X Kang
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - S C Shelmerdine
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - I Hurtado
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - E Bevilacqua
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - C Hutchinson
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - U Mandalia
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - V Segers
- Department of Feto-Pathology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - T Cos Sanchez
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - M M Cannie
- Department of Radiology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
- Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - A Carlin
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - N J Sebire
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - O J Arthurs
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - J C Jani
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| |
Collapse
|
15
|
Shelmerdine SC, Singh M, Simcock IC, Calder AD, Ashworth M, Beleza A, Sebire NJ, Arthurs OJ. Characterization of Bardet-Biedl syndrome by postmortem microfocus computed tomography (micro-CT). Ultrasound Obstet Gynecol 2019; 53:132-134. [PMID: 30079607 DOI: 10.1002/uog.19190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Affiliation(s)
- S C Shelmerdine
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - M Singh
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - I C Simcock
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - A D Calder
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - M Ashworth
- Department of Histopathology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - A Beleza
- Centre for Craniofacial & Regenerative Biology, King's College London, London, UK
- Department of Clinical Genetics, Guy's Hospital, London, UK
| | - N J Sebire
- UCL Great Ormond Street Institute of Child Health, London, UK
- Department of Histopathology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
- UCL Great Ormond Street Institute of Child Health, London, UK
| |
Collapse
|
16
|
Affiliation(s)
- B Kaur
- North West London Pathology; Hosted by Imperial College Healthcare NHS Trusts; London WC1N 3JH UK
| | - NJ Sebire
- Great Ormond Street Hospital; London WC1N 3JH UK
| |
Collapse
|
17
|
Vaughan OR, Rossi CA, Ginsberg Y, White A, Hristova M, Sebire NJ, Martin J, Zachary IC, Peebles DM, David AL. Perinatal and long-term effects of maternal uterine artery adenoviral VEGF-A165 gene therapy in the growth-restricted guinea pig fetus. Am J Physiol Regul Integr Comp Physiol 2018; 315:R344-R353. [PMID: 29847165 DOI: 10.1152/ajpregu.00210.2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Uterine artery application of adenoviral vascular endothelial growth factor A165 (Ad.VEGF-A165) gene therapy increases uterine blood flow and fetal growth in experimental animals with fetal growth restriction (FGR). Whether Ad.VEGF-A165 reduces lifelong cardiovascular disease risk imposed by FGR remains unknown. Here, pregnant guinea pigs fed 70% normal food intake to induce FGR received Ad.VEGF-A165 (1×1010 viral particles, n = 15) or vehicle ( n = 10), delivered to the external surface of the uterine arteries, in midpregnancy. Ad libitum-fed controls received vehicle only ( n = 14). Litter size, gestation length, and perinatal mortality were similar in control, untreated FGR, and FGR+Ad.VEGF-A165 animals. When compared with controls, birth weight was lower in male but higher in female pups following maternal nutrient restriction, whereas both male and female FGR+Ad.VEGF-A165 pups were heavier than untreated FGR pups ( P < 0.05, ANOVA). Postnatal weight gain was 10-20% greater in female FGR+Ad.VEGF-A165 than in untreated FGR pups, depending on age, although neither group differed from controls. Maternal nutrient restriction reduced heart weight in adult female offspring irrespective of Ad.VEGF-A165 treatment but did not alter ventricular wall thickness. In males, postnatal weight gain and heart morphology were not affected by maternal treatment. Neither systolic, diastolic, mean arterial pressure, adrenal weight, nor basal or challenged plasma cortisol were affected by maternal undernutrition or Ad.VEGF-A165 in either sex. Therefore, increased fetal growth conferred by maternal uterine artery Ad.VEGF-A165 is sustained postnatally in FGR female guinea pigs. In this study, we did not find evidence for an effect of maternal nutrient restriction or Ad.VEGF-A165 therapy on adult offspring blood pressure.
Collapse
Affiliation(s)
- O R Vaughan
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - C A Rossi
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - Y Ginsberg
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - A White
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - M Hristova
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - N J Sebire
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - J Martin
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - I C Zachary
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - D M Peebles
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| | - A L David
- Department of Maternal and Fetal Medicine, Institute for Women's Health, University College London , London , United Kingdom
| |
Collapse
|
18
|
Eysbouts YK, Ottevanger PB, Massuger LFAG, IntHout J, Short D, Harvey R, Kaur B, Sebire NJ, Sarwar N, Sweep FCGJ, Seckl MJ. Can the FIGO 2000 scoring system for gestational trophoblastic neoplasia be simplified? A new retrospective analysis from a nationwide dataset. Ann Oncol 2018; 28:1856-1861. [PMID: 28459944 DOI: 10.1093/annonc/mdx211] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background Worldwide introduction of the International Fedaration of Gynaecology and Obstetrics (FIGO) 2000 scoring system has provided an effective means to stratify patients with gestational trophoblastic neoplasia to single- or multi-agent chemotherapy. However, the system is quite elaborate with an extensive set of risk factors. In this study, we re-evaluate all prognostic risk factors involved in the FIGO 2000 scoring system and examine if simplification is feasible. Patients and methods Between January 2003 and December 2012, 813 patients diagnosed with gestational trophoblastic neoplasia were identified at the Trophoblastic Disease Centre in London and scored using the FIGO 2000. Multivariable analysis and stepwise logistic regression were carried out to evaluate whether the FIGO 2000 scoring system could be simplified. Results Of the eight FIGO risk factors only pre-treatment serum human chorionic gonadotropin (hCG) levels exceeding 10 000 IU/l (OR = 5.0; 95% CI 2.5-10.4) and 100 000 IU/l (OR = 14.3; 95% CI 4.7-44.1), interval exceeding 7 months since antecedent pregnancy (OR = 4.1; 95% CI 1.0-16.2), and tumor size of over 5 cm (OR = 2.2; 95% CI 1.3-3.6) were identified as independently predictive for single-agent resistance. In addition, increased risk was apparent for antecedent term pregnancy (OR = 3.4; 95% CI 0.9-12.7) and the presence of five or more metastases (OR = 3.5; 95% CI 0.4-30.4), but patient numbers in these categories were relatively small. Stepwise logistic regression identified a simplified risk scoring model comprising age, pretreatment serum hCG, number of metastases, antecedent pregnancy, and interval but omitting tumor size, previous failed chemotherapy, and site of metastases. With this model only 1 out 725 patients was classified different from the FIGO 2000 system. Conclusion Our simplified alternative using only five of the FIGO prognostic factors appears to be an accurate system for discriminating patients requiring single as opposed to multi-agent chemotherapy. Further work is urgently needed to validate these findings.
Collapse
Affiliation(s)
| | | | | | - J IntHout
- Department of Health Evidence, Section Biostatistics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - D Short
- Department of Medical Oncology
| | | | - B Kaur
- Department of Pathology, Charing Cross and Hammersmith Campuses, Imperial College London, London, UK
| | - N J Sebire
- Department of Pathology, Charing Cross and Hammersmith Campuses, Imperial College London, London, UK
| | | | - F C G J Sweep
- Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | | |
Collapse
|
19
|
Sebire NJ. Placental histology findings in relation to pre-eclampsia: implications for interpretation of retrospective studies. Ultrasound Obstet Gynecol 2017; 50:291-292. [PMID: 28436063 DOI: 10.1002/uog.17498] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 06/07/2023]
Affiliation(s)
- N J Sebire
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Trust and Institute of Child Health (UCL), London, UK
| |
Collapse
|
20
|
Shelmerdine SC, Hutchinson JC, Sebire NJ, Jacques TS, Arthurs OJ. Post-mortem magnetic resonance (PMMR) imaging of the brain in fetuses and children with histopathological correlation. Clin Radiol 2017; 72:1025-1037. [PMID: 28821323 DOI: 10.1016/j.crad.2017.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 06/19/2017] [Accepted: 07/17/2017] [Indexed: 11/29/2022]
Abstract
Post-mortem magnetic resonance (PMMR) imaging is rapidly emerging as an alternative, "less invasive", and more widely accepted investigative approach for perinatal deaths in the UK. PMMR has a high diagnostic accuracy for congenital and acquired fetal neuropathological anomalies compared to conventional autopsy, and is particularly useful when autopsy is non-diagnostic. The main objectives of this review are to describe and illustrate the range of common normal and abnormal central nervous system (CNS) findings encountered during PMMR investigation. This article covers the standard PMMR sequences used at our institution, normal physiological post-mortem findings, and a range of abnormal developmental and acquired conditions. The abnormal findings include diseases ranging from neural tube defects, posterior fossa malformations, those of forebrain and commissural development as well as neoplastic, haemorrhagic, and infectious aetiologies. Neuropathological findings at conventional autopsy accompany many of the conditions we describe, allowing readers to better understand the underlying disease processes and imaging appearances.
Collapse
Affiliation(s)
- S C Shelmerdine
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - J C Hutchinson
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - N J Sebire
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - T S Jacques
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Imaging and Biophysics, UCL Great Ormond Street Institute of Child Health, London, UK.
| |
Collapse
|
21
|
Kinsler VA, O'Hare P, Bulstrode N, Calonje JE, Chong WK, Hargrave D, Jacques T, Lomas D, Sebire NJ, Slater O. Melanoma in congenital melanocytic naevi. Br J Dermatol 2017; 176:1131-1143. [PMID: 28078671 PMCID: PMC5484991 DOI: 10.1111/bjd.15301] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2016] [Indexed: 01/31/2023]
Abstract
Congenital melanocytic naevi (CMN) are a known risk factor for melanoma, with the greatest risk currently thought to be in childhood. There has been controversy over the years about the incidence of melanoma, and therefore over the clinical management of CMN, due partly to the difficulties of histological diagnosis and partly to publishing bias towards cases of malignancy. Large cohort studies have demonstrated that melanoma risk in childhood is related to the severity of the congenital phenotype. New understanding of the genetics of CMN offers the possibility of improvement in diagnosis of melanoma, identification of those at highest risk, and new treatment options. We review the world literature and our centre's experience over the last 25 years, including the molecular characteristics of melanoma in these patients and new melanoma incidence and outcome data from our prospective cohort. Management strategies are proposed for presentation of suspected melanoma of the skin and the central nervous system in patients with CMN, including use of oral mitogen-activated protein kinase kinase inhibitors in NRAS-mutated tumours.
Collapse
Affiliation(s)
- V A Kinsler
- Paediatric Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K.,Genetics and Genomic Medicine, UCL Institute of Child Health, London, U.K
| | - P O'Hare
- Paediatric Oncology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - N Bulstrode
- Paediatric Plastic Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - J E Calonje
- Dermatopathology Department, St John's Institute of Dermatology, Guy's and St Thomas' Hospital, London, U.K
| | - W K Chong
- Paediatric Neuroradiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - D Hargrave
- Paediatric Oncology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K.,Developmental Biology and Cancer Programme, UCL Institute of Child Health, London, U.K
| | - T Jacques
- Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K.,Developmental Biology and Cancer Programme, UCL Institute of Child Health, London, U.K
| | - D Lomas
- Paediatric Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| | - N J Sebire
- Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K.,Developmental Biology and Cancer Programme, UCL Institute of Child Health, London, U.K
| | - O Slater
- Paediatric Oncology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, U.K
| |
Collapse
|
22
|
Lewis C, Hill M, Arthurs OJ, Hutchinson C, Chitty LS, Sebire NJ. Factors affecting uptake of postmortem examination in the prenatal, perinatal and paediatric setting. BJOG 2017; 125:172-181. [PMID: 28190300 PMCID: PMC5763339 DOI: 10.1111/1471-0528.14600] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2017] [Indexed: 11/30/2022]
Abstract
Background Postmortem examination is the single most useful investigation in providing information to parents about why their baby or child died. Despite this, uptake remains well below the recommended 75%. Objective To address the question ‘what are the barriers and motivators to perinatal, prenatal and paediatric PM examination?’ Search strategy Key databases including Pubmed and CINAHL; Cochrane library, websites of relevant patient organisations, hand search of key journals, first and last authors and references. Selection criteria Peer‐reviewed qualitative, quantitative or mixed methods research examining factors affecting uptake or decline of perinatal or paediatric postmortem examination. Data collection and analysis Narrative synthesis; findings were compared across studies to examine interrelations. Main results Seven major themes describing barriers to postmortem uptake were identified: dislike of invasiveness, practicalities of the procedure, organ retention issues, protective parenting, communication and understanding, religion and culture and professional or organisational barriers. Six major themes related to factors which facilitated parental consent were identified: desire for information, contributing to research, coping and well‐being, respectful care, minimally invasive options, and policy and practice. There were a number of themes in the literature that reflected best practice. Conclusion Findings highlight the need for better health professional education and the fact some concerns may be mitigated if less invasive methods of postmortem were routinely available. New consent packages and codes of practice may have a positive impact on perception of examination after death. The landscape is changing; further research is necessary to assess the impact on postmortem uptake rates. Tweetable abstract Systematic review to explore the barriers and motivators to perinatal, prenatal and paediatric postmortem examination. Systematic review to explore the barriers and motivators to perinatal, prenatal and paediatric postmortem examination.
Collapse
Affiliation(s)
- C Lewis
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK
| | - M Hill
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK
| | - O J Arthurs
- UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK.,Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - C Hutchinson
- UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK.,Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - L S Chitty
- North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.,UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK
| | - N J Sebire
- UCL Institute of Child Health, Great Ormond Street Institute of Child Health, London, UK.,Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| |
Collapse
|
23
|
Ashworth M, Heazell AE, Sebire NJ. Reply. Ultrasound Obstet Gynecol 2017; 49:282-283. [PMID: 28169501 DOI: 10.1002/uog.17387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, WC1N 3JH, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, St Mary's Hospital, Manchester, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, WC1N 3JH, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
24
|
Man J, Hutchinson JC, Heazell AE, Ashworth M, Levine S, Sebire NJ. Stillbirth and intrauterine fetal death: factors affecting determination of cause of death at autopsy. Ultrasound Obstet Gynecol 2016; 48:566-573. [PMID: 27781317 DOI: 10.1002/uog.16016] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES There have been several attempts to classify cause of death (CoD) in stillbirth; however, all such systems are subjective, allowing for observer bias and making comparisons between systems challenging. This study aimed to examine factors relating to determination of CoD using a large dataset from two specialist centers in which observer bias had been reduced by classifying findings objectively and assigning CoD based on predetermined criteria. METHODS Detailed autopsy reports from intrauterine deaths in the second and third trimesters during 2005-2013 were reviewed and findings entered into a specially designed database, in which CoD was assigned using predefined objective criteria. Data regarding CoD categories and factors affecting determination of CoD were examined. RESULTS There were 1064 intrauterine deaths, including 246 early intrauterine fetal deaths (IUFD) (< 20 weeks), 179 late IUFDs (20-23 weeks) and 639 stillbirths (≥ 24 weeks' gestation). Overall, around 40% (n = 412) had a clear CoD identified, whilst around 60% (n = 652) were classified as 'unexplained', including around half with identified risk factors or lesions of uncertain significance, with the remaining half (n = 292 (45%)) being entirely unexplained. A stepwise increase in the proportion of unexplained deaths was observed with increasing maceration. Black and Asian women had significantly greater proportions of deaths due to ascending infection, whilst women aged over 40 years had significantly increased placenta-related CoDs. There was no significant difference in CoD distribution according to maternal body mass index or with increasing postmortem interval. Around half of those with an identifiable CoD could be identified from clinical review and external fetal examination or imaging, with most of the remainder being determined following placental examination. CONCLUSIONS Based on objective criteria, many intrauterine deaths throughout gestation remain unexplained despite autopsy examination. The rate of unexplained death varies from around 30% to 60% depending on interpretation of the significance of features. CoD determination is dependent on both the classification system used and subjective interpretation, such that variation in the proportion of 'unexplained' cases is based largely on speculation regarding mechanisms of death. Novel methods to determine objectively the mechanism of death at postmortem examination are required. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, St Mary's Hospital, Manchester, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - S Levine
- Department of Histopathology, St George's Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
25
|
Man J, Hutchinson JC, Heazell AE, Ashworth M, Jeffrey I, Sebire NJ. Stillbirth and intrauterine fetal death: role of routine histopathological placental findings to determine cause of death. Ultrasound Obstet Gynecol 2016; 48:579-584. [PMID: 27781319 DOI: 10.1002/uog.16019] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Placental abnormalities are a common cause of death in stillbirth, ranking second only to unexplained deaths, though there is wide variation in the proportion attributed to placental disease. In clinical practice, interpretation of the significance of placental findings is difficult, since many placental features in stillbirths overlap with those in live births. Our aim was to examine objectively classified placental findings from a series of > 1000 autopsies following intrauterine death in order to evaluate the role of placental histological examination in determining the cause of death. METHODS As part of a larger study evaluating several aspects of autopsy findings in intrauterine death, a dedicated database was used to collate antenatal and postmortem examination details for all cases examined between 2005 and 2013 at two tertiary specialist centers in London, UK. Histological findings for placentas were evaluated in relation to the final cause of death. RESULTS Among 1064 intrauterine deaths, 946 (89%) cases had the placenta submitted for examination as part of the autopsy. Of these, 307 (32%) cases had the cause of death assigned to abnormalities of the placenta, cord or membranes. Around one third of stillbirths (≥ 24 weeks) had some isolated placental histological abnormality identified, many of uncertain significance, a significantly greater proportion than in cases of second-trimester intrauterine fetal demise (P < 0.0001). The cause of death was ascending infection in 176/946 (19%) cases, peaking at 22 weeks' gestation, with significantly more black mothers having ascending infection compared with other ethnicities (P < 0.0001). Maternal vascular malperfusion was the largest category of placental abnormalities in stillbirth, with peak prevalence in the early third trimester. There were 18 (2%) cases with specific histological abnormalities, including chronic histiocytic intervillositis and massive perivillous fibrin deposition. CONCLUSIONS Placental pathologies represent the largest category of cause of intrauterine death. Placental histological examination is the single most useful component of the autopsy process in this clinical setting. A minority of cases are associated with specific placental pathologies, often with high recurrence rates, that can be diagnosed only on microscopic examination of the placenta. Many deaths remain unexplained, although placental histological lesions may be present which are of uncertain significance. A rigorous, systematic approach to placental pathology research and classification may yield better understanding of the significance of placental findings and reduce the rate of unexplained intrauterine deaths. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, St Mary's Hospital, Manchester, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - I Jeffrey
- Department of Histopathology, St George's Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
26
|
Man J, Hutchinson JC, Ashworth M, Heazell AE, Levine S, Sebire NJ. Effects of intrauterine retention and postmortem interval on body weight following intrauterine death: implications for assessment of fetal growth restriction at autopsy. Ultrasound Obstet Gynecol 2016; 48:574-578. [PMID: 27781321 DOI: 10.1002/uog.16018] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE According to the classification system used, 15-60% of stillbirths remain unexplained, despite undergoing recommended autopsy examination, with variable attribution of fetal growth restriction (FGR) as a cause of death. Distinguishing small-for-gestational age (SGA) from pathological FGR is a challenge at postmortem examination. This study uses data from a large, well-characterized series of intrauterine death autopsies to investigate the effects of secondary changes such as fetal maceration, intrauterine retention and postmortem interval on body weight. METHODS Autopsy findings from intrauterine death investigations (2005-2013 inclusive, from Great Ormond Street Hospital and St George's Hospital, London) were collated into a research database. Growth charts published by the World Health Organization were used to determine normal expected weight centiles for fetuses born ≥ 24 weeks' gestation, and the effects of intrauterine retention (maceration) and postmortem interval were calculated. RESULTS There were 1064 intrauterine deaths, including 533 stillbirths ≥ 24 weeks' gestation with a recorded birth weight. Of these, 192 (36%) had an unadjusted birth weight below the 10th centile and were defined as SGA. The majority (86%) of stillborn SGA fetuses demonstrated some degree of maceration, indicating a significant period of intrauterine retention after death. A significantly greater proportion of macerated fetuses were present in the SGA population compared with the non-SGA population (P = 0.01). There was a significant relationship between increasing intrauterine retention interval and both more severe maceration and reduction in birth weight (P < 0.0001 for both), with an average artifactual reduction in birth weight of around -0.8 SD of expected weight. There was an average 12% reduction in fetal weight between delivery and autopsy and, as postmortem interval increased, fetal weight loss increased (P = 0.0001). CONCLUSION Based on birth weight alone, 36% of stillbirths are classified as SGA. However, fetuses lose weight in utero with increasing intrauterine retention and continue to lose weight between delivery and autopsy, resulting in erroneous overestimation of FGR. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, St Mary's Hospital, Manchester, UK
| | - S Levine
- Department of Histopathology, St George's Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
27
|
Man J, Hutchinson JC, Ashworth M, Judge-Kronis L, Levine S, Sebire NJ. Stillbirth and intrauterine fetal death: role of routine histological organ sampling to determine cause of death. Ultrasound Obstet Gynecol 2016; 48:596-601. [PMID: 27781316 DOI: 10.1002/uog.16020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Guidelines for the investigation of intrauterine death and sudden unexpected death in infancy (SUDI) recommend, based on expert opinion, autopsy procedures and tissue sampling strategies for histological analysis. Although stillbirth is much more common than SUDI, there have been no large-scale studies published which evaluate the usefulness of histological evaluation of specific organs in stillbirth for determining cause of death. Our aim was to evaluate the use of macroscopic and microscopic assessment of internal organs to determine cause of intrauterine death. METHODS As part of a larger study evaluating several aspects of autopsy findings in intrauterine death, a dedicated database was used to collate antenatal and postmortem examination details for cases of intrauterine death examined between 2005 and 2013 at two tertiary specialist centers in London, UK. Histological findings for all organs were examined in relation to the final cause of death, as determined by objective criteria. RESULTS Among 1064 intrauterine deaths, the majority (> 80%) of cases had internal organs that were normal on both macroscopic and microscopic examination. There was no case in which histological cardiac examination provided the cause of death when the macroscopic appearance of the heart was normal. Microscopic examination of lung tissue revealed 13 (1%) cases with histological abnormalities that provided the cause of death when the macroscopic appearance was normal, but there was only one (0.1%) case in which the diagnosis would not have been apparent on placental examination: a case of congenital cytomegalovirus infection. There was no case in which microscopic examination of macroscopically normal liver, kidneys, adrenals, spleen, thymus, intestines, pancreas, brain or thyroid provided the cause of death. CONCLUSION In this large series of autopsies in cases of intrauterine death, only around 1% of cases demonstrated histological abnormalities which provided the cause of death when the internal organs appeared normal macroscopically. There was no case in which routine histological examination of most tissues provided diagnostically useful information that was not apparent from other examinations, such as placental pathology. There is little benefit, purely in terms of determining cause of death, in obtaining tissue from most macroscopically normal organs for routine histological examination. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - L Judge-Kronis
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - S Levine
- Department of Histopathology, St George's Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
28
|
Man J, Hutchinson JC, Ashworth M, Jeffrey I, Heazell AE, Sebire NJ. Organ weights and ratios for postmortem identification of fetal growth restriction: utility and confounding factors. Ultrasound Obstet Gynecol 2016; 48:585-590. [PMID: 27781326 DOI: 10.1002/uog.16017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES The postmortem fetal brain:liver weight ratio is commonly used as a marker of nutrition for diagnosis of fetal growth restriction (FGR). However, there are limited data regarding the effects of intrauterine retention, fetal maceration and postmortem interval on organ weights and their ratios at autopsy. Our aims were to examine the relationships between gestational-age-adjusted and sex-adjusted fetal organ weights at autopsy, cause of intrauterine death and effects of intrauterine retention, and to determine whether the brain:liver weight ratio is a reliable marker of FGR in intrauterine death. METHODS As part of a larger study examining autopsy findings in intrauterine death, data from two specialist centers in London were collated in a specially designed database. Autopsy and clinical information for > 1000 intrauterine deaths between 2005 and 2013 were extracted. Adjusted (delta) organ weights were calculated by plotting against gestational age female and male brain, liver, thymus, heart, combined kidney, combined lung, spleen and combined adrenal gland weights. Polynomial regression was used to determine best fit and to calculate expected (50th centile) organ weights and deviations from expected. We compared adjusted organ weights and body:organ weight ratios in fetuses which were small-for-gestational age (SGA) at autopsy (birth weight < 10th centile for normal live births) vs those in fetuses which were not, and in macerated vs non-macerated fetuses. RESULTS The majority of fetal organs (brain, liver, heart, thymus, lungs, kidneys and thyroid) in SGA fetuses were significantly lighter than those in non-SGA fetuses. Body:organ weight ratios for thymus, liver and spleen were significantly greater in SGA fetuses, indicating these organs to be disproportionately small. The majority of organs were significantly lighter in macerated compared with non-macerated fetuses and body:organ weight ratios for most organs (liver, thymus, lung, pancreas, adrenal gland, kidney, heart) were significantly greater in macerated compared with non-macerated fetuses. When SGA cases with demonstrable placental histological abnormalities were compared with other SGA cases, there was a significant difference in the brain:liver weight ratio (median, 6 vs 3.5). CONCLUSION Changes after intrauterine death lead to loss of fetal weight, with preferential weight loss of visceral organs such as the liver. Maceration therefore affects the brain:liver weight ratio and adjustment should be made for such changes during interpretation of ratios. Fetal organ weights may be affected significantly by mechanism of death and postmortem changes. The fetal brain:liver weight ratio may provide useful information regarding intrauterine growth status at time of death, provided that adjustment is made for effects of intrauterine retention and that appropriate cut-off values are used. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - I Jeffrey
- Department of Histopathology, St George's Hospital, London, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, Manchester University, Manchester, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
29
|
Hutchinson JC, Barrett H, Ramsey AT, Haig IG, Guy A, Sebire NJ, Arthurs OJ. Virtual pathological examination of the human fetal kidney using micro-CT. Ultrasound Obstet Gynecol 2016; 48:663-665. [PMID: 26775717 DOI: 10.1002/uog.15859] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 01/08/2016] [Indexed: 06/05/2023]
Affiliation(s)
- J C Hutchinson
- UCL, Institute of Child Health, London, UK
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - H Barrett
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | | | | | - A Guy
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | - N J Sebire
- UCL, Institute of Child Health, London, UK
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - O J Arthurs
- UCL, Institute of Child Health, London, UK
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| |
Collapse
|
30
|
Man J, Hutchinson JC, Ashworth M, Heazell AE, Jeffrey I, Sebire NJ. Stillbirth and intrauterine fetal death: contemporary demographic features of >1000 cases from an urban population. Ultrasound Obstet Gynecol 2016; 48:591-595. [PMID: 27781322 DOI: 10.1002/uog.16021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Of 780 000 births annually in the UK, around 3300 are stillborn, a rate of approximately 4 per 1000 births. Traditional epidemiological associations are based on historic data. The aim of this study was to document contemporary demographic findings in a large series of > 1000 deaths in utero in London and compare these with national datasets. METHODS From a dedicated database, including > 400 data fields per case, of fetal, infant and pediatric autopsies performed at Great Ormond Street Hospital and St George's Hospital, London, we extracted information on all intrauterine deaths, excluding terminations of pregnancy, from 2005 to 2013, inclusive. Demographic data were analyzed according to the gestational age at which fetal death occurred (second-trimester intrauterine fetal death (IUFD), subdivided into early (< 20 weeks) and late (20-23 weeks) IUFD, and third-trimester stillbirth (≥ 24 weeks)) and compared with national datasets when available, using Mann-Whitney U-test and comparison of proportions testing as appropriate. RESULTS Data were available from 1064 individual postmortem reports examining intrauterine deaths delivered between 12 and 43 weeks' gestation, including 425 IUFDs (246 early and 179 late) and 639 stillbirths. Compared with the overall UK pregnant population, women in whom an intrauterine death occurred were significantly older and more obese. White mothers had a higher proportion of stillbirths (as opposed to IUFDs) than did non-white mothers, whereas black mothers had a higher proportion of IUFDs relative to stillbirths. Increased body mass index was associated with increased risk across all groups. Women who had uterine fibroids, those who had a history of vaginal bleeding in early pregnancy and those who had undergone assisted conception had a relatively higher proportion of IUFDs than stillbirths. CONCLUSIONS Based on a large series of >1000 autopsies in cases of intrauterine death, these data highlight the increased risk for fetal loss associated with maternal demographic factors in contemporary clinical practice, particularly associations with increased maternal age and body mass index. Among women in whom an intrauterine death occurs, maternal ethnicity, mode of conception and gynecological history are associated with differing timing of fetal loss. Further research is required to understand the mechanisms involved in such maternal factors in order to develop preventative strategies. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- J Man
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - J C Hutchinson
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| | - M Ashworth
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
| | - A E Heazell
- Department of Obstetrics and Gynaecology, St Mary's Hospital, Manchester, UK
| | - I Jeffrey
- Department of Histopathology, St George's Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK
- University College London, Institute of Child Health, London, UK
| |
Collapse
|
31
|
Jawad N, Sebire NJ, Wade A, Taylor AM, Chitty LS, Arthurs OJ. Body weight lower limits of fetal postmortem MRI at 1.5 T. Ultrasound Obstet Gynecol 2016; 48:92-97. [PMID: 26183321 DOI: 10.1002/uog.14948] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 06/10/2015] [Accepted: 07/09/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To evaluate the diagnostic yield of postmortem magnetic resonance imaging (PM-MRI) compared with conventional autopsy in fetuses of early gestational age and low body weight. METHODS Fetuses of < 31 weeks' gestation that underwent 1.5-T PM-MRI and conventional autopsy were included. The findings of PM-MRI and conventional autopsy were reported blinded to each other. The reports of conventional autopsy and PM-MRI for each organ system (cardiovascular, neurological, abdominal, non-cardiac thoracic and musculoskeletal) were classified as either diagnostic or non-diagnostic. The likelihood of a non-diagnostic examination by PM-MRI was calculated according to fetal gestational age and body weight. RESULTS Full datasets were examined of 204 fetuses, with mean gestational age of 20.95 ± 3.82 weeks (range, 12.0-30.7 weeks) and body-weight range of 15.9-1872 g. Body weight was the most significant predictor of diagnostic yield of PM-MRI. There was 95% confidence that 90% of fetuses will show diagnostic images by PM-MRI for all five organ systems when fetal body weight is ≥ 535 g, but < 50% of fetuses will have all five systems diagnostic on PM-MRI when body weight is < 122 g. CONCLUSION PM-MRI is highly likely to provide adequate diagnostic images for fetuses with a body weight > 500 g. Below this weight, the diagnostic yield of standard 1.5-T PM-MRI decreases significantly. These data should help inform parents and clinicians on the suitability of performing PM-MRI in fetuses with low body weight. Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd.
Collapse
Affiliation(s)
- N Jawad
- Department of Radiology, Great Ormond Street Hospital for Children, London, UK
| | - N J Sebire
- Department of Pathology, Great Ormond Street Hospital for Children, London, UK
- Institute of Child Health, University College London, London, UK
| | - A Wade
- Clinical Epidemiology, Nutrition and Biostatistics Section, UCL Institute of Child Health, London, UK
| | - A M Taylor
- Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science, London, UK
- Cardiorespiratory Division, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - L S Chitty
- Genetics and Genomic Medicine, UCL Institute of Child Health, London, UK
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children, London, UK
- Institute of Child Health, University College London, London, UK
| |
Collapse
|
32
|
Sebire NJ. Re: Placental histological patterns and uterine artery Doppler velocimetry in pregnancies complicated by early or late pre-eclampsia. R. Orabona, C. M. Donzelli, M. Falchetti, A. Santoro, A. Valcamonico and T. Frusca. Ultrasound Obstet Gynecol 2016; 47: 580-585. Ultrasound Obstet Gynecol 2016; 47:546. [PMID: 27147413 DOI: 10.1002/uog.15912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- N J Sebire
- Department of Pathology, Great Ormond Street Hospital for Children, London, UK.
| |
Collapse
|
33
|
Montaldo P, Addison S, Oliveira V, Lally PJ, Taylor AM, Sebire NJ, Thayyil S, Arthurs OJ. Quantification of maceration changes using post mortem MRI in fetuses. BMC Med Imaging 2016; 16:34. [PMID: 27121379 PMCID: PMC4849089 DOI: 10.1186/s12880-016-0137-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 04/22/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Post mortem imaging is playing an increasingly important role in perinatal autopsy, and correct interpretation of imaging changes is paramount. This is particularly important following intra-uterine fetal death, where there may be fetal maceration. The aim of this study was to investigate whether any changes seen on a whole body fetal post mortem magnetic resonance imaging (PMMR) correspond to maceration at conventional autopsy. METHODS We performed pre-autopsy PMMR in 75 fetuses using a 1.5 Tesla Siemens Avanto MR scanner (Erlangen, Germany). PMMR images were reported blinded to the clinical history and autopsy data using a numerical severity scale (0 = no maceration changes to 2 = severe maceration changes) for 6 different visceral organs (total 12). The degree of maceration at autopsy was categorized according to severity on a numerical scale (1 = no maceration to 4 = severe maceration). We also generated quantitative maps to measure the liver and lung T2. RESULTS The mean PMMR maceration score correlated well with the autopsy maceration score (R(2) = 0.93). A PMMR score of ≥4.5 had a sensitivity of 91%, specificity of 64%, for detecting moderate or severe maceration at autopsy. Liver and lung T2 were increased in fetuses with maceration scores of 3-4 in comparison to those with 1-2 (liver p = 0.03, lung p = 0.02). CONCLUSIONS There was a good correlation between PMMR maceration score and the extent of maceration seen at conventional autopsy. This score may be useful in interpretation of fetal PMMR.
Collapse
Affiliation(s)
- P Montaldo
- Centre for Perinatal Neuroscience, Imperial College London, Du Cane Road, London, W12 0HS, UK.
| | - S Addison
- Centre for Perinatal Neuroscience, Imperial College London, Du Cane Road, London, W12 0HS, UK
| | - V Oliveira
- Centre for Perinatal Neuroscience, Imperial College London, Du Cane Road, London, W12 0HS, UK
| | - P J Lally
- Centre for Perinatal Neuroscience, Imperial College London, Du Cane Road, London, W12 0HS, UK
| | - A M Taylor
- Institute of Child Health, University College London, London, UK
| | - N J Sebire
- Institute of Child Health, University College London, London, UK.,Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | - S Thayyil
- Centre for Perinatal Neuroscience, Imperial College London, Du Cane Road, London, W12 0HS, UK
| | - O J Arthurs
- Institute of Child Health, University College London, London, UK.,Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| |
Collapse
|
34
|
Eagles N, Sebire NJ, Short D, Savage PM, Seckl MJ, Fisher RA. Risk of recurrent molar pregnancies following complete and partial hydatidiform moles. Hum Reprod 2016; 31:1379. [PMID: 27076498 DOI: 10.1093/humrep/dew079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- N Eagles
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF
| | - N J Sebire
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF Department of Paediatric Laboratory Medicine, UCL Institute of Child Health, London WC1N 3JH
| | - D Short
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF
| | - P M Savage
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF
| | - M J Seckl
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF Department of Surgery and Cancer, Imperial College London, London W12 0NN
| | - R A Fisher
- Trophoblast Tumour Screening & Treatment Centre, Imperial College Healthcare NHS Trust, Charing Cross Campus, Fulham Palace Road, London W6 8RF Department of Surgery and Cancer, Imperial College London, London W12 0NN
| |
Collapse
|
35
|
Hutchinson JC, Arthurs OJ, Sebire NJ. Postmortem research: innovations and future directions for the perinatal and paediatric autopsy. Arch Dis Child Educ Pract Ed 2016; 101:54-6. [PMID: 26453243 DOI: 10.1136/archdischild-2015-309321] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 09/17/2015] [Indexed: 11/04/2022]
Affiliation(s)
- J C Hutchinson
- Department of Histopathology, Level 3 Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK University College London, Institute of Child Health, London, UK
| | - O J Arthurs
- University College London, Institute of Child Health, London, UK Department of Radiology, Great Ormond Street Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Level 3 Camelia Botnar Laboratories, Great Ormond Street Hospital, London, UK University College London, Institute of Child Health, London, UK
| |
Collapse
|
36
|
Hutchinson JC, Arthurs OJ, Ashworth MT, Ramsey AT, Mifsud W, Lombardi CM, Sebire NJ. Clinical utility of postmortem microcomputed tomography of the fetal heart: diagnostic imaging vs macroscopic dissection. Ultrasound Obstet Gynecol 2016; 47:58-64. [PMID: 26415141 DOI: 10.1002/uog.15764] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 09/11/2015] [Accepted: 09/18/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Congenital cardiac malformations are commonly identified at perinatal autopsy, which can be challenging in fetuses of early gestation and in macerated fetuses. Our objective was to examine fetal complex congenital heart disease by microcomputed tomography (micro-CT), using standard autopsy as the gold standard. METHODS In this ethically approved study, ex-vivo isolated fetal heart and fetal heart-lung blocks underwent iodine preparation prior to micro-CT, and were fixed in formalin after the micro-CT examination. Images were acquired using a microfocus-CT scanner with individual specimen image optimization. Twenty-one indices assessed normally at autopsy were evaluated for each dataset. Cardiac dissection was performed using a dissecting microscope within 24 h of the micro-CT examination. RESULTS We examined six fetal hearts, comprising five with complex congenital cardiac malformations at a gestational age of 17-23 weeks and an anatomically normal heart of 23 weeks' gestation for reference. All specimens demonstrated excellent internal contrast at micro-CT examination, and the correct overall diagnosis was made in all cases. There was agreement for 114/126 indices assessed on micro-CT and at autopsy dissection (overall concordance of 95.8% (95% CI, 90.5-98.2%)). Micro-CT was particularly useful in the assessment of ventricular morphology in macerated fetuses. CONCLUSIONS Micro-CT of small ex-vivo fetal specimens can provide highly accurate three-dimensional rendering of complex congenital fetal heart disease. This approach represents a significant advance in postmortem imaging and confirms the potential of this technology for non-invasive examination of small fetuses and organs.
Collapse
Affiliation(s)
- J C Hutchinson
- Institute of Child Health, UCL, London, UK
- Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| | - O J Arthurs
- Institute of Child Health, UCL, London, UK
- Paediatric Radiology, Great Ormond Street Hospital for Children NHS Trust, London, UK
| | - M T Ashworth
- Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| | | | - W Mifsud
- Institute of Child Health, UCL, London, UK
- Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| | - C M Lombardi
- Department of Radiology, Studio Diagnostico Eco, Vimercate, Milan, Italy
| | - N J Sebire
- Institute of Child Health, UCL, London, UK
- Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| |
Collapse
|
37
|
Papadopoulou I, Sebire NJ, Shelmerdine SC, Bower S, Arthurs OJ. Postmortem image-guided biopsy for less-invasive diagnosis of congenital intracranial teratoma. Ultrasound Obstet Gynecol 2015; 46:741-743. [PMID: 25990224 DOI: 10.1002/uog.14903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/07/2015] [Accepted: 05/13/2015] [Indexed: 06/04/2023]
Affiliation(s)
- I Papadopoulou
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | - N J Sebire
- Institute of Child Health, UCL, London, UK
- Department of Histopathology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - S C Shelmerdine
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | - S Bower
- Harris Birthright Research Centre for Fetal Medicine, Kings College Hospital, London, UK
| | - O J Arthurs
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
- Institute of Child Health, UCL, London, UK
| |
Collapse
|
38
|
Hamilton NJ, Kanani M, Roebuck DJ, Hewitt RJ, Cetto R, Culme‐Seymour EJ, Toll E, Bates AJ, Comerford AP, McLaren CA, Butler CR, Crowley C, McIntyre D, Sebire NJ, Janes SM, O'Callaghan C, Mason C, De Coppi P, Lowdell MW, Elliott MJ, Birchall MA. Tissue-Engineered Tracheal Replacement in a Child: A 4-Year Follow-Up Study. Am J Transplant 2015; 15:2750-7. [PMID: 26037782 PMCID: PMC4737133 DOI: 10.1111/ajt.13318] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/16/2015] [Accepted: 03/07/2015] [Indexed: 02/06/2023]
Abstract
In 2010, a tissue-engineered trachea was transplanted into a 10-year-old child using a decellularized deceased donor trachea repopulated with the recipient's respiratory epithelium and mesenchymal stromal cells. We report the child's clinical progress, tracheal epithelialization and costs over the 4 years. A chronology of events was derived from clinical notes and costs determined using reference costs per procedure. Serial tracheoscopy images, lung function tests and anti-HLA blood samples were compared. Epithelial morphology and T cell, Ki67 and cleaved caspase 3 activity were examined. Computational fluid dynamic simulations determined flow, velocity and airway pressure drops. After the first year following transplantation, the number of interventions fell and the child is currently clinically well and continues in education. Endoscopy demonstrated a complete mucosal lining at 15 months, despite retention of a stent. Histocytology indicates a differentiated respiratory layer and no abnormal immune activity. Computational fluid dynamic analysis demonstrated increased velocity and pressure drops around a distal tracheal narrowing. Cross-sectional area analysis showed restriction of growth within an area of in-stent stenosis. This report demonstrates the long-term viability of a decellularized tissue-engineered trachea within a child. Further research is needed to develop bioengineered pediatric tracheal replacements with lower morbidity, better biomechanics and lower costs.
Collapse
Affiliation(s)
- N. J. Hamilton
- University College London Ear InstituteRoyal National Throat Nose and Ear HospitalLondonUK
| | - M. Kanani
- Department of Cardiothoracic SurgeryGreat Ormond Street HospitalLondonUK
| | - D. J. Roebuck
- Department of RadiologyGreat Ormond Street HospitalLondonUK
| | - R. J. Hewitt
- Department of OtorhinolaryngologyGreat Ormond Street HospitalLondonUK
| | - R. Cetto
- Imperial College London, Department of AeronauticsLondonUK
| | | | - E. Toll
- Department of Cardiothoracic SurgeryGreat Ormond Street HospitalLondonUK
| | - A. J. Bates
- Imperial College London, Department of AeronauticsLondonUK
| | | | - C. A. McLaren
- Department of RadiologyGreat Ormond Street HospitalLondonUK
| | - C. R. Butler
- Lungs for Living Research CentreRayne InstituteLondonUK
| | - C. Crowley
- University College London Centre for Nanotechnology and Regenerative MedicineRoyal Free HospitalLondonUK
| | - D. McIntyre
- Department of Cardiothoracic SurgeryGreat Ormond Street HospitalLondonUK
| | - N. J. Sebire
- Department of HistopathologyGreat Ormond Street HospitalLondonUK
| | - S. M. Janes
- Lungs for Living Research CentreRayne InstituteLondonUK
| | - C. O'Callaghan
- Department of Respiratory MedicineGreat Ormond Street HospitalLondonUK
| | - C. Mason
- London Regenerative Medicine NetworkLondonUK
| | - P. De Coppi
- Department of SurgeryGreat Ormond Street HospitalLondonUK
| | - M. W. Lowdell
- Department of HaematologyRoyal Free Hospital, University College London Paul O'Gorman Laboratory of Cellular TherapeuticsLondonUK
| | - M. J. Elliott
- Department of Cardiothoracic SurgeryGreat Ormond Street HospitalLondonUK
| | - M. A. Birchall
- University College London Ear InstituteRoyal National Throat Nose and Ear HospitalLondonUK
| |
Collapse
|
39
|
Arthurs OJ, Thayyil S, Pauliah SS, Jacques TS, Chong WK, Gunny R, Saunders D, Addison S, Lally P, Cady E, Jones R, Norman W, Scott R, Robertson NJ, Wade A, Chitty L, Taylor AM, Sebire NJ. Diagnostic accuracy and limitations of post-mortem MRI for neurological abnormalities in fetuses and children. Clin Radiol 2015; 70:872-80. [PMID: 26050535 DOI: 10.1016/j.crad.2015.04.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 03/04/2015] [Accepted: 04/13/2015] [Indexed: 10/23/2022]
Abstract
AIM To compare the diagnostic accuracy of non-invasive cerebral post-mortem magnetic resonance imaging (PMMRI) specifically for cerebral and neurological abnormalities in a series of fetuses and children, compared to conventional autopsy. MATERIALS AND METHODS Institutional ethics approval and parental consent was obtained. Pre-autopsy cerebral PMMRI was performed in a sequential prospective cohort (n = 400) of fetuses (n = 277; 185 ≤ 24 weeks and 92 > 24 weeks gestation) and children <16 years (n = 123) of age. PMMRI and conventional autopsy findings were reported blinded and independently of each other. RESULTS Cerebral PMMRI had sensitivities and specificities (95% confidence interval) of 88.4% (75.5 to 94.9), and 95.2% (92.1 to 97.1), respectively, for cerebral malformations; 100% (83.9 to 100), and 99.1% (97.2 to 99.7) for major intracranial bleeds; and 87.5% (80.1 to 92.4) and 74.1% (68 to 79.4) for overall brain pathology. Formal neuropathological examination was non-diagnostic due to maceration/autolysis in 43/277 (16%) fetuses; of these, cerebral PMMRI imaging provided clinically important information in 23 (53%). The sensitivity of PMMRI for detecting significant ante-mortem ischaemic injury was only 68% (48.4 to 82.8) overall. CONCLUSIONS PMMRI is an accurate investigational technique for identifying significant neuropathology in fetuses and children, and may provide important information even in cases where autolysis prevents formal neuropathological examination; however, PMMRI is less sensitive at detecting hypoxic-ischaemic brain injury, and may not detect rarer disorders not encountered in this study.
Collapse
Affiliation(s)
- O J Arthurs
- Paediatric Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK; UCL Institute of Child Health, London, UK.
| | - S Thayyil
- Perinatal Neurology and Neonatology, Imperial College London, London, UK
| | - S S Pauliah
- Perinatal Neurology and Neonatology, Imperial College London, London, UK
| | - T S Jacques
- Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| | - W K Chong
- Paediatric Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK; UCL Institute of Child Health, London, UK
| | - R Gunny
- Paediatric Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK; UCL Institute of Child Health, London, UK
| | - D Saunders
- Paediatric Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK; UCL Institute of Child Health, London, UK
| | - S Addison
- Perinatal Neurology and Neonatology, Imperial College London, London, UK
| | - P Lally
- Perinatal Neurology and Neonatology, Imperial College London, London, UK
| | - E Cady
- Medical Physics and Bioengineering, University College London Hospitals NHS Foundation Trust, London, UK
| | - R Jones
- Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science, London, UK; Cardiorespiratory Division, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - W Norman
- Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science, London, UK; Cardiorespiratory Division, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - R Scott
- Department of Histopathology, University College London Hospital NHS Trust, UK
| | - N J Robertson
- Academic Neonatology, UCL Institute for Women's Health, London, UK
| | - A Wade
- Paediatric Epidemiology and Biostatistics Unit, UCL Institute of Child Health, London, UK
| | - L Chitty
- Genetics and Genomic Medicine, UCL Institute of Child Health, London, UK; Clinical Genetics, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; UCLH NHS Foundation Trusts, London, UK
| | - A M Taylor
- Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science, London, UK; Cardiorespiratory Division, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - N J Sebire
- UCL Institute of Child Health, London, UK; Department of Histopathology, UCL Institute of Child Health & Great Ormond Street Hospital for Children, London, UK
| | | |
Collapse
|
40
|
Hamilton NJ, Kanani M, Roebuck DJ, Hewitt RJ, Cetto R, Culme-Seymour EJ, Toll E, Bates AJ, Comerford AP, McLaren CA, Butler CR, Crowley C, McIntyre D, Sebire NJ, Janes SM, O'Callaghan C, Mason C, De Coppi P, Lowdell MW, Elliott MJ, Birchall MA. Tissue-Engineered Tracheal Replacement in a Child: A 4-Year Follow-Up Study. Am J Transplant 2015. [PMID: 26037782 DOI: 10.1111/ajt.13318.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In 2010, a tissue-engineered trachea was transplanted into a 10-year-old child using a decellularized deceased donor trachea repopulated with the recipient's respiratory epithelium and mesenchymal stromal cells. We report the child's clinical progress, tracheal epithelialization and costs over the 4 years. A chronology of events was derived from clinical notes and costs determined using reference costs per procedure. Serial tracheoscopy images, lung function tests and anti-HLA blood samples were compared. Epithelial morphology and T cell, Ki67 and cleaved caspase 3 activity were examined. Computational fluid dynamic simulations determined flow, velocity and airway pressure drops. After the first year following transplantation, the number of interventions fell and the child is currently clinically well and continues in education. Endoscopy demonstrated a complete mucosal lining at 15 months, despite retention of a stent. Histocytology indicates a differentiated respiratory layer and no abnormal immune activity. Computational fluid dynamic analysis demonstrated increased velocity and pressure drops around a distal tracheal narrowing. Cross-sectional area analysis showed restriction of growth within an area of in-stent stenosis. This report demonstrates the long-term viability of a decellularized tissue-engineered trachea within a child. Further research is needed to develop bioengineered pediatric tracheal replacements with lower morbidity, better biomechanics and lower costs.
Collapse
Affiliation(s)
- N J Hamilton
- University College London Ear Institute, Royal National Throat Nose and Ear Hospital, London, UK
| | - M Kanani
- Department of Cardiothoracic Surgery, Great Ormond Street Hospital, London, UK
| | - D J Roebuck
- Department of Radiology, Great Ormond Street Hospital, London, UK
| | - R J Hewitt
- Department of Otorhinolaryngology, Great Ormond Street Hospital, London, UK
| | - R Cetto
- Imperial College London, Department of Aeronautics, London, UK
| | | | - E Toll
- Department of Cardiothoracic Surgery, Great Ormond Street Hospital, London, UK
| | - A J Bates
- Imperial College London, Department of Aeronautics, London, UK
| | - A P Comerford
- Imperial College London, Department of Aeronautics, London, UK
| | - C A McLaren
- Department of Radiology, Great Ormond Street Hospital, London, UK
| | - C R Butler
- Lungs for Living Research Centre, Rayne Institute, London, UK
| | - C Crowley
- University College London Centre for Nanotechnology and Regenerative Medicine, Royal Free Hospital, London, UK
| | - D McIntyre
- Department of Cardiothoracic Surgery, Great Ormond Street Hospital, London, UK
| | - N J Sebire
- Department of Histopathology, Great Ormond Street Hospital, London, UK
| | - S M Janes
- Lungs for Living Research Centre, Rayne Institute, London, UK
| | - C O'Callaghan
- Department of Respiratory Medicine, Great Ormond Street Hospital, London, UK
| | - C Mason
- London Regenerative Medicine Network, London, UK
| | - P De Coppi
- Department of Surgery, Great Ormond Street Hospital, London, UK
| | - M W Lowdell
- Department of Haematology, Royal Free Hospital, University College London Paul O'Gorman Laboratory of Cellular Therapeutics, London, UK
| | - M J Elliott
- Department of Cardiothoracic Surgery, Great Ormond Street Hospital, London, UK
| | - M A Birchall
- University College London Ear Institute, Royal National Throat Nose and Ear Hospital, London, UK
| |
Collapse
|
41
|
Faras F, Abo-Alhassan F, Hussain AH, Sebire NJ, Al-Terki AE. Primary desmoplastic small round cell tumor of upper cervical lymph nodes. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 120:e4-e10. [PMID: 25577590 DOI: 10.1016/j.oooo.2014.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/02/2014] [Accepted: 11/10/2014] [Indexed: 11/27/2022]
Abstract
Desmoplastic small round cell tumors (DSRCT) are rare malignancies that typically arise in the abdominopelvic cavities. They are very uncommon in the head and neck region. We present a case of an 11-year-old Caucasian male with a primary cervical lymph node tumor in the neck. Fine-needle aspiration cytology, histopathologic examination, immunohistochemical staining, and molecular genetic testing led to the diagnosis of DSRCT. Due to the very limited number of cases reported and the lack of staging criteria, the preferred management approach remains uncertain.
Collapse
Affiliation(s)
- F Faras
- Department of ENT, Zain and Al-Sabah Hospitals, Ministry of Health, State of Kuwait.
| | - F Abo-Alhassan
- Department of Surgery, Al-Adan Hospital, Ministry of Health, State of Kuwait
| | - A H Hussain
- Chairman of Oral and Maxillofacial Surgery, Al-Amiri Hospital, Ministry of Health, State of Kuwait
| | - N J Sebire
- Professor of Paediatric and Developmental Pathology, NIHR Senior Investigator, NIHR GOSH BRC Theme Lead Diagnostics and Imaging, Great Ormond Street Hospital and ICH (UCL), United Kingdom
| | - A E Al-Terki
- Chairman of ENT College, Post-Graduate Training, Kuwait Institute of Medical Specialization (KIMS), ENT Department, Zain and Al-Sabah Hospitals, Ministry of Health, State of Kuwait
| |
Collapse
|
42
|
Pryce JW, Bamber AR, Ashworth MT, Klein NJ, Sebire NJ. Immunohistochemical expression of inflammatory markers in sudden infant death; ancillary tests for identification of infection. J Clin Pathol 2014; 67:1044-51. [DOI: 10.1136/jclinpath-2014-202489] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
AimsSudden unexpected death in infancy (SUDI) investigation requires extensive ancillary investigations, the results of which, such as postmortem microbiology, can be difficult to interpret. Markers of an inflammatory response, including interleukin 6 (IL-6), c-reactive protein (CRP) and cellular adhesion molecules are elevated in infections, yet little attention has been paid to their assessment after death. This study investigates the role of inflammatory markers in SUDI autopsies for determining cause of death.MethodsCases of SUDI over a 14 year period were identified from an autopsy database and 100 cases were selected for immunohistochemical staining of heart and liver for IL-6, CRP, P-selectin, VCAM-1 and ICAM-1 (CD54), with staining patterns compared between five groups, including infectious and unexplained SUDI.ResultsThere were significant differences between groups. Cases of histological infection demonstrated strongly positive hepatocyte CRP and ICAM-1 expression and increased myocardial staining for CRP. Half of trauma-related deaths demonstrated diffuse hepatic CRP expression but without myocardial CRP staining. Staining of unexplained SUDI cases were predominantly negative, apart from a subgroup in whom Escherichia Coli was identified, who had increased expression of hepatic IL-6.ConclusionsThere were distinct patterns of organ-specific CRP and ICAM-1 expression in SUDI by cause of death. These markers of inflammation were rarely present in unexplained SUDI suggesting either a non-inflammatory cause of death or a failure to mount an effective acute phase response. Immunohistochemical staining offers potential to identify infection-related deaths and provides insight into SUDI mechanisms.
Collapse
|
43
|
Kim JJ, Balasubramanian R, Michaelides G, Wittenhagen P, Sebire NJ, Mamode N, Shaw O, Vaughan R, Marks SD. The clinical spectrum of de novo donor-specific antibodies in pediatric renal transplant recipients. Am J Transplant 2014; 14:2350-8. [PMID: 25167892 DOI: 10.1111/ajt.12859] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/13/2014] [Accepted: 06/03/2014] [Indexed: 01/25/2023]
Abstract
The development of donor-specific HLA antibodies (DSA) is associated with worse renal allograft survival in adult patients. This study assessed the natural history of de novo DSA, and its impact on renal function in pediatric renal transplant recipients (RTR). HLA antibodies were measured prospectively using single-antigen-bead assays at 1, 3, 6 and 12 months posttransplant followed by 12-monthly intervals and during episodes of allograft dysfunction. Of 215 patients with HLA antibody monitoring, 75 (35%) developed DSA at median of 0.25 years posttransplant with a high prevalence of Class II (70%) and HLA-DQ (45%) DSA. DSA resolved in 35 (47%) patients and was associated with earlier detection (median, inter-quartile range 0.14, 0.09-0.33 vs. 0.84, 0.15-2.37 years) and lower mean fluorescence intensity (MFI) (2658, 1573-3819 vs. 7820, 5166-11 990). Overall, DSA positive patients had more rapid GFR decline with a 50% reduction in GFR at mean 5.3 (CI: 4.7-5.8) years versus 6.1 (5.7-6.4) years in DSA negative patients (p = 0.02). GFR decreased by a magnitude of 1 mL/min/1.73 m(2) per log10 increase in Class II DSA MFI (p < 0.01). Using Cox regression, independent factors predicting poorer renal allograft outcome were older age at transplant (hazard ratio 1.1, CI: 1.0-1.2 per year), tubulitis (1.5, 1.3-1.8) and microvasculature injury (2.9, 1.4-5.7). In conclusion, pediatric RTR with de novo DSA and microvasculature injury were at risk of allograft failure.
Collapse
Affiliation(s)
- J J Kim
- Department of Paediatric Nephrology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom; MRC Centre for Transplantation, London, United Kingdom
| | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Kinsler VA, Anderson G, Latimer B, Natarajan D, Healy E, Moore GE, Sebire NJ. Immunohistochemical and ultrastructural features of congenital melanocytic naevus cells support a stem-cell phenotype. Br J Dermatol 2014; 169:374-83. [PMID: 23517330 PMCID: PMC3838625 DOI: 10.1111/bjd.12323] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2013] [Indexed: 01/23/2023]
Abstract
Background Multiple congenital melanocytic naevi (CMN) in one individual are caused by somatic mosaicism for NRAS mutations; however, the lineage of the mutated cells remains uncertain. Objectives To test the hypothesis that CMN may be derived from cutaneous stem cells. Methods Sixty-six CMN samples from 44 patients were stained for immunohistochemical (IHC) markers of melanocytic differentiation (TYR, TRP1, TRP2, LEF1, MITF, cKit), pluripotency (nestin, fascin, CD133, CD20, CD34), monocyte/macrophage lineage (CD68, CD163, CD14), proliferation (Ki67) and MTOR/Wnt-signalling pathway activation (pS6, β-catenin). Semiquantitative scoring compared samples with naevus cell nesting (group 1) with those with only diffuse dermal infiltration (group 2). Transmission electron microscopy (TEM) was performed on 10 samples. Results A normal melanocyte population was seen overlying many dermal CMN. Group 1 samples were significantly more likely to express melanocytic differentiation markers than group 2, and expression decreased significantly with depth. Expression of these markers was correlated with each other, and with nestin and fascin. CD20 staining was positive in a substantial proportion and was stronger superficially. Expression of β-catenin and pS6 was almost universal. Some samples expressed monocyte/macrophage markers. TEM revealed variable naevus cell morphology, striking macromelanosomes, double cilia and microvilli. Conclusions Congenital melanocytic naevi development frequently coexists with normal overlying melanocyte development, leading us to hypothesize that in these cases CMN are likely to develop from a cell present in the skin independent of, or remaining after, normal melanocytic migration. IHC and TEM findings are compatible with CMN cells being of cutaneous stem-cell origin, capable of some degree of melanocytic differentiation superficially.
Collapse
Affiliation(s)
- V A Kinsler
- Paediatric Dermatology, Great Ormond Street Hospital for Children, London, WC1N 3JH, UK.
| | | | | | | | | | | | | |
Collapse
|
45
|
Sebire NJ. Detection of fetal growth restriction at autopsy in non-anomalous stillborn infants. Ultrasound Obstet Gynecol 2014; 43:241-244. [PMID: 24375919 DOI: 10.1002/uog.13295] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/23/2013] [Accepted: 12/23/2013] [Indexed: 06/03/2023]
Affiliation(s)
- N J Sebire
- Paediatric and Developmental Pathology, Great Ormond Street Hospital/Institute of Child Health (UCL), London, UK
| |
Collapse
|
46
|
Jessop FA, Lees CC, Pathak S, Hook CE, Sebire NJ. Umbilical cord coiling: clinical outcomes in an unselected population and systematic review. Virchows Arch 2013; 464:105-12. [PMID: 24259031 DOI: 10.1007/s00428-013-1513-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 11/04/2013] [Accepted: 11/07/2013] [Indexed: 11/26/2022]
Abstract
This study was conducted to determine the frequency of pre-defined clinical outcomes in relation to umbilical cord coiling indices >90th percentile and <10th percentile in an unselected population of >1,000 women with a singleton pregnancy resulting in livebirth delivering at or near term and to report these findings in the context of a systematic review. Placentas of consecutive deliveries from an unselected low-risk population with >15 cm attached umbilical cords were included in the study. Clinical outcomes included interventional delivery, birthweight <10th percentile, Apgar score <7 at 1 min, neonatal acidosis (pH<7.2) and admission to neonatal special care. Standard MOOSE (Meta-analysis of Observational Studies in Epidemiology) guidelines were observed for the systematic review. Umbilical coiling index was determined for 1,082 placentas. Mean maternal age was 30.7 years (standard deviation [SD] =5.7) and 519 women (48 %) were primiparous. Mean cord length was 43 cm (SD=13) and mean cord coiling index 0.20 (SD=0.09). A total of 866 cords were normally coiled, and 108 cases were hypercoiled (>90th centile) and 108 cases were undercoiled (<10th percentile). There were no differences between cases of overcoiled, normally coiled or undercoiled cords for any clinical outcome studied. The systematic review yielded a small number of clinical studies which were too statistically and clinically heterogenous to permit meta-analysis. There is insufficient evidence either from this unselected cohort study or from a systematic review to support the previous suggestion that cord coiling index >90th centile or <10th centile is associated with adverse clinical outcome in an unselected population. Previous studies that draw a link between abnormal cord coiling and clinical outcome are generally too small and/or selective to allow meaningful conclusions or applicability to low-risk populations.
Collapse
Affiliation(s)
- F A Jessop
- Department of Paediatric Pathology, Addenbrookes Hospital, Cambridge, UK
| | | | | | | | | |
Collapse
|
47
|
Seckl MJ, Sebire NJ, Fisher RA, Golfier F, Massuger L, Sessa C. Gestational trophoblastic disease: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 2013; 24 Suppl 6:vi39-50. [PMID: 23999759 DOI: 10.1093/annonc/mdt345] [Citation(s) in RCA: 206] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|
48
|
Ben-Sasi K, Chitty LS, Franck LS, Thayyil S, Judge-Kronis L, Taylor AM, Sebire NJ. Acceptability of a minimally invasive perinatal/paediatric autopsy: healthcare professionals' views and implications for practice. Prenat Diagn 2013; 33:307-12. [PMID: 23457031 DOI: 10.1002/pd.4077] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Perinatal autopsy provides essential clinical information, including cause of death; yet, autopsy rates have steadily declined because of parental refusal. Technology now enables less invasive alternatives to traditional autopsy and may increase the acceptability of post-mortem examination. OBJECTIVE This study aimed to examine the relative acceptability among healthcare professionals of a minimally invasive autopsy (MIA; magnetic resonance imaging and laparoscopic-guided tissue sampling), compared with standard autopsy. METHODS This study was questionnaire-based survey of healthcare professionals working in clinical settings where paediatric and perinatal deaths occur. RESULTS Of 250 questionnaires distributed, 224 were returned (90% response rate). Autopsy was generally perceived as acceptable. Demographic factors affecting acceptability included ethnicity and religion but not professional role. MIA compared favourably with traditional autopsy, 50% of respondents reporting both equally acceptable, 40% reporting MIA more acceptable and 10% less acceptable. Healthcare professionals agreed that having a MIA option would make it easier to discuss autopsy with parents (P < 0.001). CONCLUSION Less invasive autopsy appears an acceptable alternative to traditional autopsy for most respondents. Healthcare professionals should be aware that ethnic and religious opinions influence their own views on autopsy decisions and should be mindful of this when discussing autopsy with parents. Further research is needed to determine parental opinions.
Collapse
Affiliation(s)
- K Ben-Sasi
- Department of Paediatric Pathology, Great Ormond Street Hospital, London, UK
| | | | | | | | | | | | | |
Collapse
|
49
|
Arthurs OJ, Thayyil S, Wade A, Chong WK, Sebire NJ, Taylor AM. Normal ascent of the conus medullaris: a post-mortem foetal MRI study. J Matern Fetal Neonatal Med 2012; 26:697-702. [PMID: 23211127 DOI: 10.3109/14767058.2012.746307] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The position of the conus medullaris is considered abnormal if it ends below lumbar vertebrae three (L3) at birth. We used magnetic resonance imaging (MRI) to measure the position of the conus in post-mortem foetuses, to investigate the timing of normal ascent. METHODS The position of the conus in 84 post-mortem foetuses (mean gestation 26.3 weeks; range 14-41 weeks) was identified using 3D MRI datasets. A numerical scale was used for vertebral levels, from 1 (S2) to 15 (T12). RESULTS There was significant ascent of the conus medullaris with increasing gestation. At 20 weeks gestation, an estimated 84.2% (95% confidence interval (CI): 72.9, 93.2%) of foetuses have a conus position of L4/5 or higher, but only 22.8% (95% CI 11.7, 34.9%) at L3 or higher. By 26 weeks, an estimated 50.7% (95% CI 34.1, 67.5) will have reached L3, and 94.8% (95% CI 87.0, 98.5%) reach L3 by 40 weeks. CONCLUSION There is regular ascent of the conus throughout foetal life. Although growth for each individual foetus may be non-linear, most foetuses have a conus level within the normal adult range by 33 weeks gestation.
Collapse
Affiliation(s)
- O J Arthurs
- Great Ormond Street Hospital for Children, London, WC1N 3JH, UK.
| | | | | | | | | | | | | |
Collapse
|
50
|
Sita-Lumsden A, Short D, Lindsay I, Sebire NJ, Adjogatse D, Seckl MJ, Savage PM. Treatment outcomes for 618 women with gestational trophoblastic tumours following a molar pregnancy at the Charing Cross Hospital, 2000-2009. Br J Cancer 2012; 107:1810-4. [PMID: 23059744 PMCID: PMC3504950 DOI: 10.1038/bjc.2012.462] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Post-molar pregnancy gestational trophoblastic tumours (GTT) have been curable with chemotherapy treatment for over 50 years. Because of the rarity of the diagnosis, detailed structured information on prognosis, treatment escalations and outcome is limited. Methods: We have reviewed the demographics, prognostic variables, treatment course and clinical outcomes for the post-mole GTT patients treated at Charing Cross Hospital between 2000 and 2009. Results: Of the 618 women studied, 547 had a diagnosis of complete mole, 13 complete mole with a twin conception and 58 partial moles. At the commencement of treatment, 94% of patients were in the FIGO low-risk group (score 0–6). For patients treated with single-agent methotrexate, the primary cure rate ranged from 75% for a FIGO score of 0–1 through to 31% for those with a FIGO score of 6. Conclusion: In the setting of a formal follow-up programme, the expected cure rate for GTT after a molar pregnancy should be 100%. Prompt treatment and diagnosis should limit the exposure of most patients to combination chemotherapy. Because of the post-treatment relapse rate of 3% post-chemotherapy, hCG monitoring should be performed routinely.
Collapse
Affiliation(s)
- A Sita-Lumsden
- Department of Medical Oncology, Gestational Trophoblastic Disease Centre, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London W6 8RF, UK
| | | | | | | | | | | | | |
Collapse
|