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Tricca S, Parazzini C, Doneda C, Arrigoni F, Tortora M, Lanna M, Casati D, Faiola S, Righini A, Izzo G. Magnetic resonance imaging of intracranial anomalies in pregnancies complicated by twin anemia-polycythemia sequence. Neuroradiology 2024; 66:1213-1223. [PMID: 38720066 DOI: 10.1007/s00234-024-03373-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 05/01/2024] [Indexed: 06/05/2024]
Abstract
PURPOSE To describe fetal brain Magnetic Resonance Imaging (MRI) findings in a large series of monochorionic (MC) pregnancies complicated by Twin Anemia-Polycythemia Sequence (TAPS) prenatally diagnosed, so to characterize the potential intracranial complications associated with this condition, their frequency and potential treatment options. METHODS This is a retrospective study of MC twin pregnancies complicated by TAPS and undergone fetal MRI in a single institution from 2006 to 2023. MRI control was performed and post-natal ultrasound (US) or MRI were available. RESULTS 1250 MC pregnancies were evaluated in our institution. 50 pregnancies (4%) were diagnosed with TAPS, 29 underwent a fetal brain MRI. 13/29 pregnancies (44.8%) demonstrated brain findings at MRI in at least a twin. Neuroradiological findings were detected in 14/57 twins (24.6%). We detected four main categories of findings: hemorrhagic lesions, T2-weighted white-matter hyperintensities (WMH), brain edema-swelling and venous congestion. Nineteen findings were present in the anemic and three in the polycythemic twins, with a statistically significant ratio between the two groups (p-value = 0.01). Intrauterine MRI follow-up demonstrated the sequalae of hemorrhagic lesions. A complete regression of brain swelling, veins prominence and T2-WMHs was demonstrated after treatment. Postnatal imaging confirmed prenatal features. CONCLUSIONS Our work demonstrates that TAPS-related MRI anomalies consisted in edematous/hemorrhagic lesions that occur mostly in anemic rather than in polycythemic twins. Fetoscopic laser surgery could have a potential decongestant role. Therefore, prenatal MRI may help in counselling and management in TAPS pregnancies, especially for the planning of therapy and the monitoring of its efficacy.
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Affiliation(s)
- Stefano Tricca
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy.
- Department of Diagnosis and Treatment Services, Azienda Ospedaliero Universitaria Maggiore Della Carità, RadiodiagnosticsNovara, Italy.
| | - Cecilia Parazzini
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy
| | - Chiara Doneda
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy
| | - Filippo Arrigoni
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy
| | - Mario Tortora
- Department of Advanced Biomedical Sciences, Neuroradiology Unit, University "Federico II", Naples, Italy
| | - Mariano Lanna
- Fetal Therapy Unit "U. Nicolini", V. Buzzi Children's Hospital, University of Milan, Milan, Italy
| | - Daniela Casati
- Fetal Therapy Unit "U. Nicolini", V. Buzzi Children's Hospital, University of Milan, Milan, Italy
| | - Stefano Faiola
- Fetal Therapy Unit "U. Nicolini", V. Buzzi Children's Hospital, University of Milan, Milan, Italy
| | - Andrea Righini
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy
| | - Giana Izzo
- Department of Pediatric Radiology and Neuroradiology, V. Buzzi Children's Hospital, Via Castelvetro 32, 20154, Milan, Italy
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Spruijt MS, van Klink JMM, de Vries LS, Slaghekke F, Middeldorp JM, Lopriore E, Tan RNGB, Toirkens JP, Steggerda SJ. Fetal and neonatal neuroimaging in twin-twin transfusion syndrome. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2024; 63:746-757. [PMID: 38214436 DOI: 10.1002/uog.27583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/17/2023] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
OBJECTIVES To describe the types of brain injury and subsequent neurodevelopmental outcome in fetuses and neonates from pregnancies with twin-twin transfusion syndrome (TTTS). Additionally, to determine risk factors for brain injury and to review the use of neuroimaging modalities in these cases. METHODS This was a retrospective cohort study of consecutive TTTS pregnancies treated with laser surgery in a single fetal therapy center between January 2010 and January 2020. The primary outcome was the incidence of brain injury, classified into predefined groups. Secondary outcomes included adverse outcome (perinatal mortality or neurodevelopmental impairment), risk factors for brain injury and the number of magnetic resonance imaging (MRI) scans. RESULTS Cranial ultrasound was performed in all 466 TTTS pregnancies and in 685/749 (91%) liveborn neonates. MRI was performed in 3% of pregnancies and 4% of neonates. Brain injury was diagnosed in 16/935 (2%) fetuses and 37/685 (5%) neonates and all predefined injury groups were represented. Four fetal and four neonatal cases of cerebellar hemorrhage were detected. Among those with brain injury, perinatal mortality occurred in 11/16 (69%) fetuses and 8/37 (22%) neonates. Follow-up was available for 29/34 (85%) long-term survivors with brain injury and the mean age at follow-up was 46 months. Neurodevelopmental impairment was present in 9/29 (31%) survivors with brain injury. Adverse outcome occurred in 28/53 (53%) TTTS individuals with brain injury. The risk of brain injury was increased after recurrent TTTS/post-laser twin anemia-polycythemia sequence (TAPS) (odds ratio (OR), 3.095 (95% CI, 1.581-6.059); P = 0.001) and lower gestational age at birth (OR per 1-week decrease in gestational age, 1.381 (95% CI, 1.238-1.541); P < 0.001). CONCLUSIONS Based on dedicated neurosonography and limited use of MRI, brain injury was diagnosed in 2% of fetuses and 5% of neonates with TTTS. Adverse outcome was seen in over half of cases with brain injury. Brain injury was related to recurrent TTTS/post-laser TAPS and a lower gestational age at birth. © 2024 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- M S Spruijt
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pediatrics, Division of Perinatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J M M van Klink
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - L S de Vries
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - F Slaghekke
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - J M Middeldorp
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - E Lopriore
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R N G B Tan
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - J P Toirkens
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - S J Steggerda
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
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Gao L, Xu QQ, Wang S, Xia YQ, Zhao XR, Wu Y, Hua RY, Sun JL, Wang YL. Correlation analysis of adverse outcomes for the selective reduction of twin pregnancies. BMC Pregnancy Childbirth 2022; 22:417. [PMID: 35585573 PMCID: PMC9118778 DOI: 10.1186/s12884-022-04754-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Due to the extensive development of assisted reproductive technology, the number of twin pregnancies has increased significantly over recent decades. Twin pregnancy is the most representative type of multiple pregnancies and is associated with high infant morbidity and mortality. Perinatal complications of twin pregnancy are also markedly increased compared with those of single pregnancy. Transabdominal selective reduction (SR) is a remedial intervention. This study aimed to research the adverse outcomes of transabdominal selective reduction of twin pregnancy and the correlation between the reduction week and pregnancy outcomes. OBJECTIVE The purpose of this study was to examine the adverse outcomes of the transabdominal selective reduction of twin pregnancy and the correlation between the reduction week and pregnancy outcomes. METHODS A retrospective cohort study of the transabdominal reduction of twin pregnancy was conducted in a single prenatal diagnosis medical centre from September 2012 to October 2020. According to chorionicity, women with twin pregnancies were divided into 2 groups: dichorionic (DC) twin pregnancies and monochorionic (MC) twin pregnancies. Women with DC twin pregnancies underwent potassium chloride reduction, and those with MC twin pregnancies underwent radiofrequency ablation (RFA). The reduction indications included pregnancy complications, foetal abnormalities, and maternal factors. The perinatal outcomes of different chorionic twins after reduction were analysed. Each foetus with an adverse outcome was included. The relative relationship between the reduction weeks and delivery weeks of twins was examined by correlation analysis. RESULTS A total of 161 women were included in this study. A total of 112 women had DC twin pregnancies, and 49 women had MC twin pregnancies. Preterm delivery rates were significantly higher in the MC twin reduction group than in the DC twin reduction group prior to 37 weeks (53.1% vs. 29.5%, P = 0.004). The mean gestational age at delivery of the foetuses in the DC twin group that underwent SR was significantly older than that of those in the MC twin group that underwent SR (36.9 ± 4.0 vs. 33.5 ± 6.6 weeks, P = 0.001). The number of DC twins that underwent SR and were delivered after 37 weeks was obviously greater than that of the MC twins that underwent SR (70.5% vs. 46.9%, P = 0.004). The foetal survival rate was 95.5% in the DC twin reduction group and 77.6% in the MC twin reduction group. If the indication of TTTS was not included, there was no significant difference in the foetal survival rate of the DC and MC twin reduction groups (95.5% vs. 86.2%, P = 0.160). Cotwin death 1 week after reduction was greater in the MC group (6.1% vs. 0%, P = 0.027). Compared to other indications, this finding indicated that a significantly lower proportion of women remained undelivered after selective reduction with the indication of TTTS. There was a significant negative correlation between the reduction weeks and delivery weeks of the two groups (P < 0.01), and the best opportunity for reduction was before 22 weeks of gestation. CONCLUSION These findings highlighted an obviously negative correlation between the reduction week and delivery week. The transabdominal selective reduction of twin pregnancy should be considered for a lower rate of miscarriage or premature delivery if the reduction week takes place earlier in pregnancy. The rate of preterm delivery was the lowest when transabdominal selective reduction was completed before 22 weeks of gestation. Compared with other RFA indications, a higher rate of premature delivery was shown for MC twins with a reduction indication of TTTS. TTTS with sIUGR might be one of the reasons for the adverse outcomes of reduction for MC twin pregnancy.
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Affiliation(s)
- Li Gao
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Qian-Qian Xu
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Shan Wang
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Yuan-Qing Xia
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Xin-Rong Zhao
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Yi Wu
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Ren-Yi Hua
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Jin-Ling Sun
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Yan-Lin Wang
- Division of Maternal-Fetal Fetal Medicine, Prenatal Diagnosis Center, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. .,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China. .,Shanghai Municipal Key Clinical Specialty, Shanghai, China.
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Segev M, Djurabayev B, Hadi E, Yinon Y, Rabinowicz S, Hoffmann C, Shrot S. Third Trimester Structural and Diffusion Brain Imaging after Single Intrauterine Fetal Death in Monochorionic Twins: MRI-Based Cohort Study. AJNR Am J Neuroradiol 2022; 43:620-626. [PMID: 35332016 PMCID: PMC8993195 DOI: 10.3174/ajnr.a7475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/07/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE Single intrauterine fetal death increases the risk of antenatal brain lesions in the surviving twin. We evaluated the prevalence of structural brain lesions, biometry, and diffusivity on routine third trimester MR imaging performed following single intrauterine fetal death. MATERIALS AND METHODS In a retrospective MR imaging-based cohort study, we compared 29 monochorionic twins complicated with single intrauterine fetal death (14 following laser ablation treatment for twin-to-twin transfusion syndrome, 8 following selective fetal reduction, and 7 spontaneous) with 2 control cohorts (49 singleton fetuses and 28 uncomplicated twin fetuses). All fetuses in the single intrauterine fetal death group underwent fetal brain MR imaging as a routine third trimester evaluation. Structural brain lesions were analyzed. Cerebral biometry and diffusivity were measured and compared. RESULTS Brain lesions consistent with the evolution of prior ischemic injury were found in 1 of 29 fetuses, not detected by ultrasound. No acute brain infarction, hemorrhage, or cortical abnormalities were found. Supratentorial biometric measurements in the single intrauterine fetal death group were significantly smaller than those in the singleton group, but not significantly different from those in the uncomplicated twin group. There were no significant differences in ADC values of the cerebral hemispheres, basal ganglia, and pons between the single intrauterine fetal death group and either control group. CONCLUSIONS Although smaller brain biometry was found, normal diffusivity in surviving twins suggests normal parenchymal microstructure. The rate of cerebral structural injury was relatively low in our cohort, arguing against the routine use of fetal brain MR imaging in twin pregnancies complicated with single intrauterine fetal death. Larger prospective studies are necessary to guide appropriate surveillance protocol and parental counseling in twin pregnancies complicated by single intrauterine fetal death.
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Affiliation(s)
- M Segev
- From the Section of Neuroradiology (M.S., B.D., C.H., S.S.)
| | - B Djurabayev
- From the Section of Neuroradiology (M.S., B.D., C.H., S.S.)
| | - E Hadi
- Division of Diagnostic Imaging, Diagnostic Ultrasound Unit of the Institute of Obstetrical and Gynecological Imaging (E.H.)
| | - Y Yinon
- Department of Obstetrics and Gynecology, and Fetal Medicine Unit (Y.Y.), Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel.,Sackler School of Medicine (Y.Y., C.H., S.S.), Tel Aviv University, Tel-Aviv, Israel
| | - S Rabinowicz
- Pediatric Neurology Unit (S.R.), The Edmond and Lilly Safra Children's Hospital, Sheba Medical Center, Ramat Gan, Israel
| | - C Hoffmann
- From the Section of Neuroradiology (M.S., B.D., C.H., S.S.).,Sackler School of Medicine (Y.Y., C.H., S.S.), Tel Aviv University, Tel-Aviv, Israel
| | - S Shrot
- From the Section of Neuroradiology (M.S., B.D., C.H., S.S.) .,Sackler School of Medicine (Y.Y., C.H., S.S.), Tel Aviv University, Tel-Aviv, Israel
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Kowsalya A, S. Jasti D, Bhaskaran S, Jayasri K, Thanemozhi S, Kumar M. Optic atrophy in paediatric patients: A clinical review. TNOA JOURNAL OF OPHTHALMIC SCIENCE AND RESEARCH 2022. [DOI: 10.4103/tjosr.tjosr_181_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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6
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Cruciat G, Nemeti GI, Popa-Stanila R, Florian A, Goidescu IG. Imaging diagnosis and legal implications of brain injury in survivors following single intrauterine fetal demise from monochorionic twins - a review of the literature. J Perinat Med 2021; 49:837-846. [PMID: 33882202 DOI: 10.1515/jpm-2020-0566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/18/2021] [Indexed: 12/28/2022]
Abstract
Brain injury of the surviving twin from monochorionic pregnancies following intrauterine fetal demise during the second and third trimesters is a rare but severe complication. Monochorionicity and gestational age at the time of stillbirth seem to be decisive factors in terms of long-term neurologic outcome prediction for the survivor. Magnetic resonance imaging (MRI), diffusion weighted imaging (DWI) in particular, seem to bring the earliest and most accurate diagnosis. Ultrasound detection of brain damage is possible in later stages of fetal brain injury. It is essential to provide early diagnosis and multidisciplinary counsel to the parents to ensure informed decision making. For couples who choose to terminate pregnancy legislation related to late abortion might lead to further distress. Our paper aims to stress the importance of MRI DWI in the evaluation of surviving twins following single intrauterine fetal demise in monochorionic pregnancies and the delicate context of the medical professionals and parents facing this clinical situation, sometimes complicated by legal constraints.
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Affiliation(s)
- Gheorghe Cruciat
- Obstetrics and Gynecology I, Mother and Child Department, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Georgiana Irina Nemeti
- Obstetrics and Gynecology I, Mother and Child Department, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Roxana Popa-Stanila
- Department of Radiology, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andreea Florian
- Obstetrics and Gynecology I, Mother and Child Department, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Iulian Gabriel Goidescu
- Obstetrics and Gynecology I, Mother and Child Department, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Abstract
Twin to twin transfusion syndrome (TTTS) is a common complication that typically presents in the second trimester of pregnancy in 10-15% of monochorionic twins due to net transfer of volume and hormonal substances from one twin to the other across vascular anastomoses on the placenta. Without recognition and treatment, TTTS is the greatest contributor to fetal loss prior to viability in 90-100% of advanced cases. Ultrasound diagnosis of monochorionicity is most reliable in the first trimester and sets the monitoring strategy for this type of twins. The diagnosis of TTTS is made by ultrasound with the findings of polyhydramnios due to volume overload and polyuria in one twin and oligohydramnios due to oliguria of the co-twin. Assessment of bladder filling as well as arterial and venous Doppler patterns are required for staging disease severity. Assessment of fetal cardiac function also provides additional insight into the fetal cardiovascular impacts of the disease as well as help identify fetuses that may require postnatal follow up. Fetoscopic laser ablation of the communicating vascular anastomoses between the twins is the standard treatment for TTTS. It aims to cure the condition by interrupting the link between their circulations and making them independent of one another. Contemporary outcome data after laser surgery suggests survival for both fetuses can be anticipated in up to 65% of cases and survival of a single fetus in up to 88% of cases. However, preterm birth remains a significant contributor to postnatal morbidity and mortality. Long term outcomes of TTTS survivors indicate that up to 11% of children may show signs of neurologic impairment. Strategies to minimize preterm birth after treatment and standardized reporting by laser centers are important considerations to improve overall outcomes and understand the long-term impacts of TTTS.
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Affiliation(s)
- Jena L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
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Abstract
The importance of fetal magnetic resonance imaging (MRI) in the prenatal diagnosis of central nervous system (CNS) anomalies is rapidly increasing. Fetal MRI represents a third level examination usually performed, as early as 18-20 weeks of gestational age, when a second level (expert) neuro-ultrasonography (US) evaluation raises the suspicion of a CNS anomaly or when a genetic disorder is known. Compared to the US, MRI has the advantage to allow a better visualization and characterization of brain structures so to detect anomalies not visible in the US, thus resulting in relevant implications for parent counselling and pregnancy management. Moreover, the improvement of MRI technologies permits to obtain ultrafast sequences, which minimize the drawback of movement artifacts, and to perform advanced studies. This review aims at providing a practical guide for trainees and fellows who are approaching fetal MRI. In the first part, we provide information about indications, safety and protocols based on the state-of-the-art sequences, with a mention on the innovations related to the use of a 3T scanner. The second part is focused on the normal development of the human fetal brain related to its MR appearance, whose knowledge is essential to detect possible abnormalities. The last section briefly describes the most frequent abnormalities in the fetal brain and spine as depicted by MRI.
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Affiliation(s)
- Giulia Moltoni
- Neuroradiology Unit, NESMOS (Neurosciences, Mental Health and Sensory Organs) Department, S. Andrea Hospital, University Sapienza, Rome, Italy
| | - Giacomo Talenti
- Neuroradiology Unit, Department of Diagnostics and Pathology, Verona University Hospital, Verona, Italy
| | - Andrea Righini
- Neuroradiology Unit, Pediatric Radiology Department, Vittore Buzzi Children's Hospital, Milan, Italy
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The prevalence of brain lesions after in utero surgery for twin-to-twin transfusion syndrome on third-trimester MRI: a retrospective cohort study. Eur Radiol 2020; 31:4097-4103. [PMID: 33210202 DOI: 10.1007/s00330-020-07452-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/22/2020] [Accepted: 11/02/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Due to the increased risk of antenatal brain lesions, we offer a third-trimester magnetic resonance imaging (MRI) scan to all patients who underwent an in utero intervention for twin-twin transfusion syndrome (TTTS). However, the usefulness of such a policy has not been demonstrated yet. Therefore, we determined the prevalence of antenatal brain lesions detected on third-trimester MRI and the proportion of lesions detected exclusively on MRI. MATERIALS AND METHODS We conducted a retrospective cohort study of monochorionic diamniotic twin pregnancies complicated by TTTS that underwent laser coagulation of the vascular anastomoses or fetal reduction by umbilical cord occlusion between 2010 and 2017. We reviewed the third-trimester MRI findings and compared those with the prenatal ultrasonography. RESULTS Of the 141 patients treated with laser coagulation and 17 managed by cord occlusion, 112/141 (79%) and 15/17 (88%) patients reached 28 weeks. Of those, 69/112 (62%) and 11/15 (73%) underwent an MRI between 28 and 32 weeks. After laser coagulation, MRI detected an antenatal brain lesion in 6 of 69 pregnancies (9%) or in 6 of 125 fetuses (5%). In 4 cases (67%), the lesion was detected only on MRI. In the 11 patients treated with cord occlusion, no brain lesions were diagnosed. CONCLUSION The prevalence of brain lesions detected by third-trimester MRI is higher compared to prenatal ultrasonography alone, making MRI a useful adjunct to detect antenatal brain lesions in twin pregnancies after in utero treatment for TTTS. KEY POINTS • In utero interventions for twin-to-twin transfusion syndrome (TTTS) do not prevent the occurrence of antenatal brain lesions. • Fetal magnetic resonance imaging (MRI) has high accuracy in detecting anomalies of cortical development and can be a useful adjunct to ultrasonography in diagnosing certain brain abnormalities. • After laser coagulation of the anastomoses for TTTS, third-trimester MRI diagnosed a brain lesion that was not detected earlier on ultrasound scan in 6% of pregnancies.
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Shinar S, Agrawal S, El-Chaâr D, Abbasi N, Beecroft R, Kachura J, Keunen J, Seaward G, Van Mieghem T, Windrim R, Ryan G. Selective fetal reduction in complicated monochorionic twin pregnancies: A comparison of techniques. Prenat Diagn 2020; 41:52-60. [PMID: 32939784 DOI: 10.1002/pd.5830] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/09/2020] [Accepted: 09/12/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To compare perinatal outcomes associated with three methods of selective reduction in complicated monochorionic (MC) twin pregnancies: bipolar cord coagulation (BC), fetoscopic or ultrasound guided laser cord occlusion and radiofrequency ablation (RFA). METHODS Retrospective cohort study of complicated MC twin pregnancies undergoing selective fetal reduction at a tertiary fetal center over a 20-year period. Obstetric and perinatal outcomes were compared. RESULTS 105 procedures met inclusion criteria: 74 RFAs, 17 lasers and 14 BCs. Procedure duration was significantly shorter for RFA (27.4 ± 15.8 minutes) compared to BC (91.7 ± 38.7 minutes) and laser (83.4 ± 40.4 minutes), P < .0001). The incidence of preterm prelabor rupture of membranes (PPROM) and co-twin demise did not differ between groups, however preterm delivery <34 weeks occurred less frequently following RFA (29.7%), compared to laser (64.7%) or BC (42.9%) (P = .02); delivery <37 weeks was also less frequent following RFA (45.9%), compared to laser (76.5%) or BC (78.6%)(P = .01). The difference in preterm birth<34 weeks between RFA and laser was maintained after adjusting for cord occlusion indication and amnionicity (OR 3.96, 95% CI 1.27-12.31). CONCLUSIONS In our experience, RFA procedures were simpler, faster and associated with a lower risk of preterm delivery <34 and <37 weeks, compared to laser or BC.
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Affiliation(s)
- Shiri Shinar
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Swati Agrawal
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Darine El-Chaâr
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Nimrah Abbasi
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management & Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Robert Beecroft
- University of Toronto, Toronto, Ontario, Canada.,Dept. Medical Imaging, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - John Kachura
- University of Toronto, Toronto, Ontario, Canada.,Dept. Medical Imaging, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Johannes Keunen
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Gareth Seaward
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management & Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Tim Van Mieghem
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Rory Windrim
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Greg Ryan
- Ontario Fetal Centre, Fetal Medicine Unit, Dept. Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada.,Dept. Medical Imaging, Mount Sinai Hospital, Toronto, Ontario, Canada
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11
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Viñals F, Correa F, Tubau A, Alonso I, Serra V, Herraiz I, Hormazabal L, Quiroz G, Saint-Jean C, Diaz L, Zambrano B, Galindo A. New Insights into the Anterior Complex. Fetal Diagn Ther 2020; 47:514-518. [PMID: 31931505 DOI: 10.1159/000504980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/25/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To introduce visualization of the germinal matrix (GM), external angle of the frontal horn, and periventricular white matter while evaluating the anterior complex (AC) during basic ultrasound assessment of the fetal brain. CASE PRESENTATIONS This is a retrospective observational study of healthy women with singleton pregnancies, with no increased risk of fetal central nervous system anomalies, attending routine ultrasound screening at 20-32 weeks' gestation. Seventeen cases are presented in which an abnormal aspect of the GM or external angle of the frontal horn or periventricular white matter on AC evaluation has allowed a prenatal diagnosis of peri-intraventricular hemorrhage, subependymal cysts, connatal cysts, periventricular venous hemorrhagic infarction, and white matter injury. CONCLUSION An extended AC evaluation could significantly improve the -diagnosis of hemorrhagic/cystic/hypoxic-ischemic lesions during the performance of a basic ultrasound study of the fetal brain.
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Affiliation(s)
- Fernando Viñals
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile,
| | - Flavia Correa
- Fetal and Neonatal Ultrasonography Department, Hospital Lusíadas, Lisbon, Portugal
| | - Albert Tubau
- Obstetrics Unit, Hospital Son Llàtzer, Palma de Mallorca, Spain
| | | | - Vicente Serra
- Instituto Universitario IVI Valencia, IVIRMA, Universidad de Valencia, Valencia, Spain
| | - Ignacio Herraiz
- Fetal Medicine Unit - Maternal and Child Health and Development Network, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, 12 de Octubre Research Institute (imas12), Complutense University of Madrid, Madrid, Spain
| | - Lorena Hormazabal
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Gabriel Quiroz
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Constanza Saint-Jean
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Linder Diaz
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Belkys Zambrano
- Centro AGB Ultrasonografía, Clínica Sanatorio Alemán, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Alberto Galindo
- Fetal Medicine Unit - Maternal and Child Health and Development Network, Department of Obstetrics and Gynecology, University Hospital 12 de Octubre, 12 de Octubre Research Institute (imas12), Complutense University of Madrid, Madrid, Spain
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12
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Quintero R, Kontopoulos E, Williams ME, Sloop J, Vanderbilt D, Chmait RH. Neurodevelopmental outcome of monochorionic twins with selective intrauterine growth restriction (SIUGR) type II: laser versus expectant management. J Matern Fetal Neonatal Med 2019; 34:1513-1521. [DOI: 10.1080/14767058.2019.1638902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ruben Quintero
- USFetus Research Consortium, Miami, FL, USA
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Florida International University, Herbert Wertheim School of Medicine, Miami, FL, USA
| | - Eftichia Kontopoulos
- USFetus Research Consortium, Miami, FL, USA
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Florida International University, Herbert Wertheim School of Medicine, Miami, FL, USA
| | - Marian E. Williams
- Children’s Hospital Los Angeles University Center for Excellence in Developmental Disabilities, University of Southern California, Los Angeles, CA, USA
| | - Judy Sloop
- JSloop Consulting, LLC, Boynton Beach, FL, USA
| | - Douglas Vanderbilt
- Department of Pediatrics, Division of General Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Ramen H. Chmait
- USFetus Research Consortium, Miami, FL, USA
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
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13
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Lanna MM, Consonni D, Faiola S, Izzo G, Scelsa B, Cetin I, Rustico MA. Incidence of Cerebral Injury in Monochorionic Twin Survivors after Spontaneous Single Demise: Long-Term Outcome of a Large Cohort. Fetal Diagn Ther 2019; 47:66-73. [PMID: 31220847 DOI: 10.1159/000500774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 05/06/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To evaluate incidence of cerebral injury and outcome in a large series of monochorionic (MC) twin survivors after spontaneous single fetal demise. METHODS Retrospective analysis of all MC pregnancies with single fetal demise diagnosed at, or referred to, the Fetal Therapy Unit "U. Nicolini," V. Buzzi Children's Hospital, Milan, Italy, from 2004 to 2015. Survivors evaluation protocol included detailed ultrasound (US) of intracranial anatomy, Doppler investigation of peak systolic velocity in the middle cerebral artery (MCA-PSV), and magnetic resonance (MR). Data were collected on pregnancy characteristics, postnatal brain scan, and MR and neurological follow-up. RESULTS Seventy-eight consecutive MC pregnancies were analyzed. Median gestational age (GA) at single fetal demise was 22 weeks (range 15-36); median interval between single demise and live birth was 105 days (range 1-175), with a median GA at birth of 36 weeks (range 23-41). Prenatal MR was performed in 57 of 78 cases (73%). Cerebral injury affected 14/78 (18%) co-twins, 2 of whom were born immediately after single demise, with postnatal diagnosis of cerebral injury; of the other 12 fetuses that were studied before birth, 10 had a prenatal diagnosis of lesion both with US and MR, one only with MR, and in one case, a grade III intraventricular hemorrhage was reported only after delivery, which occurred at 25 weeks, 5 weeks after the single demise. Signs of fetal anemia (MCA-PSV value above 1.55 MoM) were related to a higher risk of prenatal cerebral injury; cases with postnatal diagnosis of lesion were delivered at lower GA. CONCLUSIONS Cerebral injury affects 18% of co-twin survivors after single fetal demise in MC twin pregnancies, and evaluation and follow-up of these cases can improve detection rate of such damage.
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Affiliation(s)
- Mariano Matteo Lanna
- Fetal therapy Unit "U. Nicolini," Vittore Buzzi Children's Hospital, Università di Milano, Milan, Italy,
| | - Dario Consonni
- Unit of Epidemiology, Fondazione IRCCS Ca'Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Faiola
- Fetal therapy Unit "U. Nicolini," Vittore Buzzi Children's Hospital, Università di Milano, Milan, Italy
| | - Giana Izzo
- Department of Pediatric Radiology and Neuroradiology, Buzzi Children's Hospital, Milan, Italy
| | - Barbara Scelsa
- Unit of Pediatric Neurology, Buzzi Children's Hospital, Milan, Italy
| | - Irene Cetin
- Department of Obstetrics and Gynecology, Vittore Buzzi Children's Hospital, Università di Milano, Milan, Italy
| | - Maria Angela Rustico
- Fetal therapy Unit "U. Nicolini," Vittore Buzzi Children's Hospital, Università di Milano, Milan, Italy
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14
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Kirkham FJ, Zafeiriou D, Howe D, Czarpran P, Harris A, Gunny R, Vollmer B. Fetal stroke and cerebrovascular disease: Advances in understanding from lenticulostriate and venous imaging, alloimmune thrombocytopaenia and monochorionic twins. Eur J Paediatr Neurol 2018; 22:989-1005. [PMID: 30467085 DOI: 10.1016/j.ejpn.2018.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 12/17/2022]
Abstract
Fetal stroke is an important cause of cerebral palsy but is difficult to diagnose unless imaging is undertaken in pregnancies at risk because of known maternal or fetal disorders. Fetal ultrasound or magnetic resonance imaging may show haemorrhage or ischaemic lesions including multicystic encephalomalacia and focal porencephaly. Serial imaging has shown the development of malformations including schizencephaly and polymicrogyra after ischaemic and haemorrhagic stroke. Recognised causes of haemorrhagic fetal stroke include alloimmune and autoimmune thrombocytopaenia, maternal and fetal clotting disorders and trauma but these are relatively rare. It is likely that a significant proportion of periventricular and intraventricular haemorrhages are of venous origin. Recent evidence highlights the importance of arterial endothelial dysfunction, rather than thrombocytopaenia, in the intraparenchymal haemorrhage of alloimmune thrombocytopaenia. In the context of placental anastomoses, monochorionic diamniotic twins are at risk of twin twin transfusion syndrome (TTTS), or partial forms including Twin Oligohydramnios Polyhydramnios Sequence (TOPS), differences in estimated weight (selective Intrauterine growth Retardation; sIUGR), or in fetal haemoglobin (Twin Anaemia Polycythaemia Sequence; TAPS). There is a very wide range of ischaemic and haemorrhagic injury in a focal as well as a global distribution. Acute twin twin transfusion may account for intraventricular haemorrhage in recipients and periventricular leukomalacia in donors but there are additional risk factors for focal embolism and cerebrovascular disease. The recipient has circulatory overload, with effects on systemic and pulmonary circulations which probably lead to systemic and pulmonary hypertension and even right ventricular outflow tract obstruction as well as the polycythaemia which is a risk factor for thrombosis and vasculopathy. The donor is hypovolaemic and has a reticulocytosis in response to the anaemia while maternal hypertension and diabetes may influence stroke risk. Understanding of the mechanisms, including the role of vasculopathy, in well studied conditions such as alloimmune thrombocytopaenia and monochorionic diamniotic twinning may lead to reduction of the burden of antenatally sustained cerebral palsy.
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Affiliation(s)
- Fenella J Kirkham
- Developmental Neurosciences Section and Biomedical Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom; Departments of Child Health, Obstetrics and Gynaecology and Radiology, University Hospital Southampton, United Kingdom; Clinical and Experimental Sciences, University of Southampton, United Kingdom.
| | - Dimitrios Zafeiriou
- 1st Department of Pediatrics, "Hippokratio' General Hospital, Aristotle University, Thessaloniki, Greece
| | - David Howe
- Departments of Child Health, Obstetrics and Gynaecology and Radiology, University Hospital Southampton, United Kingdom; Clinical and Experimental Sciences, University of Southampton, United Kingdom
| | - Philippa Czarpran
- Departments of Child Health, Obstetrics and Gynaecology and Radiology, University Hospital Southampton, United Kingdom
| | - Ashley Harris
- Departments of Child Health, Obstetrics and Gynaecology and Radiology, University Hospital Southampton, United Kingdom
| | - Roxanna Gunny
- Developmental Neurosciences Section and Biomedical Research Centre, UCL Great Ormond Street Institute of Child Health, London, United Kingdom; Department of Radiology, St George's hospital, London, United Kingdom
| | - Brigitte Vollmer
- Departments of Child Health, Obstetrics and Gynaecology and Radiology, University Hospital Southampton, United Kingdom; Clinical and Experimental Sciences, University of Southampton, United Kingdom
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15
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Abstract
Purpose In this paper, I will report the range of appearances of schizencephaly in children and fetuses by reviewing a 10-year experience from a single centre and detail classification systems for the different forms of schizencephaly. This will lead to re-assessment of possible aetiological and mechanistic causes of schizencephaly. Methods All cases of pediatric and fetal schizencephaly were located on the local database between 2007 and 2016 inclusive. The studies were reviewed for the presence, location and type of schizencephaly, as well as the state of the (cavum) septum pellucidum, the location of the fornices and the presence of other brain abnormalities. Results The review included 21 children and 11 fetuses with schizencephaly. Schizencephaly (type 1) was found in 9% of children but no fetuses, schizencephaly (type 2) was present in 67% of the pediatric cases and in 45% of fetuses, whilst schizencephaly (type 3) was present in approximately 24% of children and 55% of fetuses. Other brain abnormalities were found in 67% of children and 55% of fetuses. Conclusion I have proposed a new system for classifying schizencephaly that takes into account all definitions of the abnormality in the literature. Using that approach, I have described the appearances and associations of pediatric and fetal cases of schizencephaly from a single centre. Review of the current literature appears to favour an acquired destructive aetiology for most cases of schizencephaly, and I have proposed a mechanism to explain the cortical formation abnormalities found consistently in and around areas of schizencephaly.
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