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Selcuk K, Sezik M, Yalcin SE, Yavuz A. Reference ranges of fetal cisterna magna volume measurements by three-dimensional ultrasonography in the late second trimester considering sonographic experience. Acta Radiol 2023; 64:1205-1211. [PMID: 35521820 DOI: 10.1177/02841851221098846] [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] [Indexed: 11/15/2022]
Abstract
BACKGROUND Volume measurements of fetal cisterna magna (CM) by three-dimensional (3D) ultrasonography may have a role in the diagnosis of various posterior fossa abnormalities. PURPOSE To evaluate reference intervals and reliability of fetal CM volume values by virtual organ computer-aided analysis (VOCAL) in structurally normal fetuses, considering experience of evaluators. MATERIAL AND METHODS Three operators with different 3D sonography experience levels measured CM volumes of 100 structurally normal fetuses at 18-27 weeks of gestation. Reference intervals for CM volumes were generated. Intraclass correlation coefficients (ICC) were calculated. RESULTS Mean fetal CM volume measurements by the three operators did not significantly (P = 0.49, P = 0.22, and P = 0.17, respectively) change through 20-23 weeks of gestation. Moderate degrees of inter-observer reliability were found with an ICC of 0.69 between novice and intermediate-level, ICC of 0.74 between experienced and intermediate-level, and ICC of 0.78 between experienced and novice observer, respectively. The novice sonographer generally overestimated CM measurements. Intra-observer reliability was good (ICC=0.85). CONCLUSION A reference chart for fetal CM volume by VOCAL was formed, revealing uniform mean values of 20-23 weeks of gestation. The inter-observer reliability is moderate, and biases seem relatively common for all experience categories.
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Affiliation(s)
- Koray Selcuk
- Kastamonu Tosya State Hospital, Kastamonu, Turkey
| | - Mekin Sezik
- Department of Obstetrics and Gynecology, Süleyman Demirel University Faculty of Medicine, Isparta, Turkey
| | - Serenat Eris Yalcin
- Department of Obstetrics and Gynecology, University of Health Sciences Antalya Training and Research Hospital, Antalya, Turkey
| | - And Yavuz
- Department of Obstetrics and Gynecology, Süleyman Demirel University Faculty of Medicine, Isparta, Turkey
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Amodeo I, Borzani I, Raffaeli G, Persico N, Amelio GS, Gulden S, Colnaghi M, Villamor E, Mosca F, Cavallaro G. The role of magnetic resonance imaging in the diagnosis and prognostic evaluation of fetuses with congenital diaphragmatic hernia. Eur J Pediatr 2022; 181:3243-3257. [PMID: 35794403 PMCID: PMC9395465 DOI: 10.1007/s00431-022-04540-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/23/2022] [Indexed: 11/04/2022]
Abstract
UNLABELLED In recent years, magnetic resonance imaging (MRI) has largely increased our knowledge and predictive accuracy of congenital diaphragmatic hernia (CDH) in the fetus. Thanks to its technical advantages, better anatomical definition, and superiority in fetal lung volume estimation, fetal MRI has been demonstrated to be superior to 2D and 3D ultrasound alone in CDH diagnosis and outcome prediction. This is of crucial importance for prenatal counseling, risk stratification, and decision-making approach. Furthermore, several quantitative and qualitative parameters can be evaluated simultaneously, which have been associated with survival, postnatal course severity, and long-term morbidity. CONCLUSION Fetal MRI will further strengthen its role in the near future, but it is necessary to reach a consensus on indications, methodology, and data interpretation. In addition, it is required data integration from different imaging modalities and clinical courses, especially for predicting postnatal pulmonary hypertension. This would lead to a comprehensive prognostic assessment. WHAT IS KNOWN • MRI plays a key role in evaluating the fetal lung in patients with CDH. • Prognostic assessment of CDH is challenging, and advanced imaging is crucial for a complete prenatal assessment and counseling. WHAT IS NEW • Fetal MRI has strengthened its role over ultrasound due to its technical advantages, better anatomical definition, superior fetal lung volume estimation, and outcome prediction. • Imaging and clinical data integration is the most desirable strategy and may provide new MRI applications and future research opportunities.
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Affiliation(s)
- Ilaria Amodeo
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy
| | - Irene Borzani
- grid.414818.00000 0004 1757 8749Pediatric Radiology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Genny Raffaeli
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy ,grid.4708.b0000 0004 1757 2822Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy
| | - Nicola Persico
- grid.4708.b0000 0004 1757 2822Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy ,grid.414818.00000 0004 1757 8749Department of Obstetrics and Gynecology, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giacomo Simeone Amelio
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy
| | - Silvia Gulden
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy
| | - Mariarosa Colnaghi
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy
| | - Eduardo Villamor
- grid.412966.e0000 0004 0480 1382Department of Pediatrics, School for Oncology and Reproduction (GROW), Maastricht University Medical Center, University of Maastricht, MUMC+), Maastricht, the Netherlands
| | - Fabio Mosca
- grid.414818.00000 0004 1757 8749Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122 Milan, Italy ,grid.4708.b0000 0004 1757 2822Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 12, 20122, Milan, Italy.
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A 10-Year Retrospective Review of Prenatal Applications, Current Challenges and Future Prospects of Three-Dimensional Sonoangiography. Diagnostics (Basel) 2021; 11:diagnostics11081511. [PMID: 34441444 PMCID: PMC8394388 DOI: 10.3390/diagnostics11081511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/14/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022] Open
Abstract
Realistic reconstruction of angioarchitecture within the morphological landmark with three-dimensional sonoangiography (three-dimensional power Doppler; 3D PD) may augment standard prenatal ultrasound and Doppler assessments. This study aimed to (a) present a technical overview, (b) determine additional advantages, (c) identify current challenges, and (d) predict trajectories of 3D PD for prenatal assessments. PubMed and Scopus databases for the last decade were searched. Although 307 publications addressed our objectives, their heterogeneity was too broad for statistical analyses. Important findings are therefore presented in descriptive format and supplemented with the authors’ 3D PD images. Acquisition, analysis, and display techniques need to be personalized to improve the quality of flow-volume data. While 3D PD indices of the first-trimester placenta may improve the prediction of preeclampsia, research is needed to standardize the measurement protocol. In highly experienced hands, the unique 3D PD findings improve the diagnostic accuracy of placenta accreta spectrum. A lack of quality assurance is the central challenge to incorporating 3D PD in prenatal care. Machine learning may broaden clinical translations of prenatal 3D PD. Due to its operator dependency, 3D PD has low reproducibility. Until standardization and quality assurance protocols are established, its use as a stand-alone clinical or research tool cannot be recommended.
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Abstract
Congenital diaphragmatic hernia (CDH) is a potentially severe anomaly that should be referred to a fetal care center with expertise in multidisciplinary evaluation and management. The pediatric radiologist plays an important role in the evaluation of CDH, both in terms of anatomical description of the anomaly and in providing detailed prognostic information for use in caring for the fetus and pregnant mother as well as planning for delivery and postnatal care. This article reviews the types of hernias, including distinguishing features and imaging clues. The most common methods of predicting severity are covered, and current fetal and postnatal therapies are explained. The author of this paper provides a handy reference for pediatric radiologists presented with a case of CDH as part of their daily practice.
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Fetal Physiologically Based Pharmacokinetic Models: Systems Information on the Growth and Composition of Fetal Organs. Clin Pharmacokinet 2020; 58:235-262. [PMID: 29987449 DOI: 10.1007/s40262-018-0685-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The growth of fetal organs is a dynamic process involving considerable changes in the anatomical and physiological parameters that can alter fetal exposure to xenobiotics in utero. Physiologically based pharmacokinetic models can be used to predict the fetal exposure as time-varying parameters can easily be incorporated. OBJECTIVE The objective of this study was to collate, analyse and integrate the available time-varying parameters needed for the physiologically based pharmacokinetic modelling of xenobiotic kinetics in a fetal population. METHODS We performed a comprehensive literature search on the physiological development of fetal organs. Data were carefully assessed, integrated and a meta-analysis was performed to establish growth trends with fetal age and weight. Algorithms and models were generated to describe the growth of these parameter values as functions of age and/or weight. RESULTS Fetal physiologically based pharmacokinetic parameters, including the size of the heart, liver, brain, kidneys, lungs, spleen, muscles, pancreas, skin, bones, adrenal and thyroid glands, thymus, gut and gonads were quantified as a function of fetal age and weight. Variability around the means of these parameters at different fetal ages was also reported. The growth of the investigated parameters was not consistent (with respect to direction and monotonicity). CONCLUSION Despite the limitations identified in the availability of some values, the data presented in this article provide a unique resource for age-dependent organ size and composition parameters needed for fetal physiologically based pharmacokinetic modelling. This will facilitate the application of physiologically based pharmacokinetic models during drug development and in the risk assessment of environmental chemicals and following maternally administered drugs or unintended exposure to environmental toxicants in this population.
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Dütemeyer V, Cordier AG, Cannie MM, Bevilacqua E, Huynh V, Houfflin-Debarge V, Verpillat P, Olivier C, Benachi A, Jani JC. Prenatal prediction of postnatal survival in fetuses with congenital diaphragmatic hernia using MRI: lung volume measurement, signal intensity ratio, and effect of experience. J Matern Fetal Neonatal Med 2020; 35:1036-1044. [PMID: 32212880 DOI: 10.1080/14767058.2020.1740982] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: To evaluate various signal intensity ratios in isolated congenital diaphragmatic hernia (CDH) and to compare their potential in predicting survival with that of the observed-to-expected (O/E) ratio of total fetal lung volume (TFLV) using magnetic resonance imaging (MRI) measurements. Our second objective was to evaluate the impact of operator's experience in comparing the prediction of postnatal survival by O/E-TFLV.Methods: In 75 conservatively managed CDH fetuses and in 50 who underwent fetoscopic endoluminal tracheal occlusion (FETO), the fetal lung-to-amniotic fluid, lung-to-liver, lung-to-muscle, lung-to-spinal fluid signal intensity ratios, respectively LAFSIR, LLSIR, LMSIR, and LSFSIR, were measured, as was O/E-TFLV. Receiver operating characteristic (ROC) curves were constructed and used to compare the various signal intensity ratios with O/E-TFLV in the prediction of postnatal survival. In 72 MRI lung volumes assessed by the referring radiologists in Paris and Lille and secondarily by our expert radiologist in Brussels (M.M.C.) using the same MRI examinations, ROC curves were constructed and used to compare the value of O/E-TFLV determined by the two centers in the prediction of postnatal survival.Results: In the total cohort of CDH fetuses, O/E-TFLV and LLSIR were predictive of postnatal survival whereas in the conservatively managed group O/E-TFLV, LLSIR, and LMSIR predicted postnatal survival. O/E-TFLV predicted postnatal survival far better than the signal intensity ratios: area under the ROC curve for prediction by O/E-TFLV in the total cohort was 0.866 (p < .001; standard error = 0.031). The area under the ROC curve for prediction of postnatal survival using O/E-TFLV by MRI evaluated at the referral centers was 0.640 (p = 102; standard error = 0.085), and with O/E-TFLV reevaluated by M.M.C., it was 0.872 (p < .001; standard error = 0.061). Pairwise comparison showed a significant difference between the areas under the ROC curves (difference = 0.187, p = .012; standard error = 0.075).Conclusion: In fetuses with CDH with/without FETO, LLSIR was significantly correlated with the prediction of postnatal survival. However, measurement of O/E-TFLV was far better in predicting postnatal outcome. Operator experience in measurement of lung volumes using MRI seem to play a role in the predictive value of the technique.
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Affiliation(s)
- Vivien Dütemeyer
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Vrije Universiteit Brussel, Brussels, Belgium
| | - Anne-Gael Cordier
- Department of Gynecology and Obstetrics, Bicêtre Hospital, Paris Sud University, Le Kremlin Bicêtre, France.,Reference Center for Rare Diseases: Congenital Diaphragmatic Hernia, Clamart, France
| | - Mieke M Cannie
- Department of Radiology, University Hospital Brugmann, Brussels, Belgium.,Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elisa Bevilacqua
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Vrije Universiteit Brussel, Brussels, Belgium
| | - Van Huynh
- Department of Paediatric Radiology, Bicêtre Hospital, Paris Sud University, Le Kremlin Bicêtre, France
| | | | | | - Camille Olivier
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Vrije Universiteit Brussel, Brussels, Belgium
| | - Alexandra Benachi
- Reference Center for Rare Diseases: Congenital Diaphragmatic Hernia, Clamart, France.,Department of Obstetrics and Gynaecology, Antoine Béclère Hospital, Paris Sud University, Clamart, France
| | - Jacques C Jani
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Vrije Universiteit Brussel, Brussels, Belgium
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Cordier AG, Russo FM, Deprest J, Benachi A. Prenatal diagnosis, imaging, and prognosis in Congenital Diaphragmatic Hernia. Semin Perinatol 2020; 44:51163. [PMID: 31439324 DOI: 10.1053/j.semperi.2019.07.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Antenatal ultrasound screening identifies more than 60% of Congenital Diaphragmatic Hernia (CDH) cases and provides the opportunity for in utero referral to a tertiary care center for expert assessment and perinatal management. Prenatal assessment of fetuses with CDH has tremendously improved over the past ten years. The outcome may be predicted prenatally by medical imaging and advanced genetic testing. The combination of lung size and liver position determination by ultrasound measurements and MRI are widely accepted methods to stratify fetuses into groups that correlate not only with neonatal mortality but also with morbidity. Notwithstanding this, prediction of persistent pulmonary hypertension of the newborn still needs to be improved.
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Affiliation(s)
- Anne-Gael Cordier
- Department of Obstetrics and Gynecology, Hôpital Antoine Béclère, AP-HP, Université Paris Sud, 157 rue de la porte de Trivaux, 92140 CLAMART, APHP, Clamart, France; Centre Référence Maladie Rare, Hernie de Coupole Diaphragmatique, Clamart, France.
| | - Francesca M Russo
- Clinical Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium; Academic Department of Development and Regeneration, Cluster Woman and Child, KU Leuven, Leuven, Belgium
| | - Jan Deprest
- Clinical Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium; Academic Department of Development and Regeneration, Cluster Woman and Child, KU Leuven, Leuven, Belgium; Institute for Women's Health, University College London, London, UK
| | - Alexandra Benachi
- Department of Obstetrics and Gynecology, Hôpital Antoine Béclère, AP-HP, Université Paris Sud, 157 rue de la porte de Trivaux, 92140 CLAMART, APHP, Clamart, France; Centre Référence Maladie Rare, Hernie de Coupole Diaphragmatique, Clamart, France
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Prenatal detection of congenital anomalies and related factors in Argentina. J Community Genet 2020; 11:313-320. [PMID: 31900752 DOI: 10.1007/s12687-019-00451-6] [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: 08/21/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022] Open
Abstract
Congenital anomalies (CAs) are a leading cause of neonatal death. Many CAs can be diagnosed prenatally. To estimate the prenatal detection rate (PDR) of CA in hospitals participating in the RENAC (National Network of Congenital Anomalies of Argentina) and to analyze the PDR according to different factors. Sources were reports of RENAC from the 2013-2016 period. Congenital anomalies included were those detectable by ultrasound or by a prenatal karyotype. PDR was calculated by region, health subsector, clinical presentation, maternal age, sex, and twining. Using multiple logistic regression analysis, we evaluated predictors of prenatal detection. In total, 9976 cases were defined as prenatal detectable; 5021 were detected (PDR = 50.3%). Multiple presentation increased the chances of prenatal detection (Adj. OR = 1.6; 95%CI 1.4-1.9). Prenatal detection was lower in the public subsector (Adj. OR = 0.8; 95%CI 0.7-0.9) and in the northern regions of the country. PDR was higher than 75% in isolated cases of urinary malformation, anencephaly, and gastroschisis. Prenatal detection increased the chance of birth in higher complexity-level hospitals (Adj. OR = 2.5; 95%CI 2.3-2.8). PDR was within the range previously reported. Heterogeneity between regions and health subsector suggests the need for training to achieve equity in detection.
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The use of antenatal fetal magnetic resonance imaging in the assessment of patients at high risk of preterm birth. Eur J Obstet Gynecol Reprod Biol 2018; 222:134-141. [DOI: 10.1016/j.ejogrb.2018.01.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/10/2018] [Accepted: 01/15/2018] [Indexed: 12/30/2022]
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Mottet N, Aubry S, Vidal C, Boiteux G, Metz JP, Riethmuller D, Pazart L, Ramanah R. Feasibility of 2-D ultrasound shear wave elastography of fetal lungs in case of threatened preterm labour: a study protocol. BMJ Open 2017; 7:e018130. [PMID: 29282263 PMCID: PMC5770838 DOI: 10.1136/bmjopen-2017-018130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION 2-D ultrasound shear wave elastography (SWE) could be considered as a new noninvasive tool for monitoring fetal lung development based on evaluation of mechanical properties during pregnancy. Interesting results are available concerning the use of SWE on developing organs, especially on premature infants and animal models. The main objective in this study is to evaluate the feasibility of 2-D SWE in human fetal lungs between 24 and 34 weeks of gestation (WG). The secondary objective is to modellise fetal lung-to-liver elastography ratio (LLE ratio) and to assess variations between normal lung and lung surfactant-enriched after a corticosteroids course indicated for a threatened preterm labour (TPL). METHODS/DESIGN A prospective case-control study will be performed between 24 and 34 WG. Fetal lungs and liver will be explored by SWE into two groups: fetuses of women with an uncomplicated pregnancy (control group) and fetuses of women with a TPL requiring administration of corticosteroids (cases group). LLE ratio will be defined as the value of the lung elasticity divided by the value of the liver elasticity.Primary judgement criterion is the value of elasticity modulus expressed in kilopascal. Lungs and liver will be explored through three measurements to define the most reproducible regions with the lowest intra- and inter-observer variability. Feasibility will be evaluated by assessing the number of examinations performed and the number of examinations with interpretable results. Intra- and inter-observer reproducibility will be evaluated by means of the intra-class correlation coefficient. ETHICS AND DISSEMINATION Approval of the study protocol was obtained from the human ethical research committee (Comité de Protection des Personnes EST II, process number 15/494) and the French National Agency for Medicines and Health Products Safety (process number 2015-A01575-44). All participants will sign a statement of informed consent. TRIAL REGISTRATION NUMBER NCT02870608; Recruiting.
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Affiliation(s)
- Nicolas Mottet
- Department of Obstetrics and Gynaecology, Pôle Mère-Femme, University Hospital of Besancon, University of Franche-Comte, Besançon, France
- Nanomedecine Laboratory, INSERM EA4662, University of Franche-Comte, Besancon, France
| | - Sébastien Aubry
- Nanomedecine Laboratory, INSERM EA4662, University of Franche-Comte, Besancon, France
- Department of Musculoskeletal Imaging, University Hospital of Besancon, Besancon, France
| | - Chrystelle Vidal
- Centre d’investigation Clinique-Innovation Technologique, INSERM, University Hospital of Besançon, Besançon, France
| | - Guillaume Boiteux
- Centre d’investigation Clinique-Innovation Technologique, INSERM, University Hospital of Besançon, Besançon, France
| | - Jean-Patrick Metz
- Department of Obstetrics and Gynaecology, Pôle Mère-Femme, University Hospital of Besancon, University of Franche-Comte, Besançon, France
| | - Didier Riethmuller
- Department of Obstetrics and Gynaecology, Pôle Mère-Femme, University Hospital of Besancon, University of Franche-Comte, Besançon, France
| | - Lionel Pazart
- Centre d’investigation Clinique-Innovation Technologique, INSERM, University Hospital of Besançon, Besançon, France
| | - Rajeev Ramanah
- Department of Obstetrics and Gynaecology, Pôle Mère-Femme, University Hospital of Besancon, University of Franche-Comte, Besançon, France
- Nanomedecine Laboratory, INSERM EA4662, University of Franche-Comte, Besancon, France
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Abstract
In congenital diaphragmatic hernia (CDH), herniation of the abdominal organs into the fetal chest causes pulmonary hypoplasia and pulmonary hypertension, the main causes of neonatal mortality. As antenatal ultrasound screening improves, the risk of postnatal death can now be better predicted, allowing for the identification of fetuses that might most benefit from a prenatal intervention. Fetoscopic tracheal occlusion is being evaluated in a large international randomized controlled trial. We present the antenatal imaging approaches that can help identify fetuses that might benefit from antenatal therapy, and review the evolution of fetal surgery for CDH to date.
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Affiliation(s)
- Titilayo Oluyomi-Obi
- Section of Maternal Fetal Medicine, Department of Obstetrics and Gynaecology, University of Calgary, 1403 29 Street NW, Calgary, Alberta.
| | - Tim Van Mieghem
- Fetal Medicine Unit, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Greg Ryan
- Fetal Medicine Unit, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
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Kadji C, Camus MF, Bevilacqua E, Cannie MM, Sanchez TC, Jani JC. Repeatability of estimated fetal weight: Comparison between MR imaging versus 2D ultrasound in at- and near-term patients. Eur J Radiol 2017. [DOI: 10.1016/j.ejrad.2017.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Abstract
Over the past 20 years, prenatal detection of congenital diaphragmatic hernia (CDH) has improved worldwide, reaching up to 60% in Europe. Pulmonary hypoplasia and persistent pulmonary hypertension are the two main determinants of neonatal mortality and morbidity, so new tools have been focused on their evaluation. Fetal surgery for severe cases requires proper evaluation of the prognosis of fetuses with CDH. Observed-to-expected lung-to-head ratio, liver position, and total lung volume measured by magnetic resonance are the prognostic factors most often used, and have been shown to correlate not only with neonatal mortality but also with morbidity. In daily practice, pulmonary hypertension by itself, although most often associated with lung hypoplasia, is more difficult to predict.
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