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Recker F, Schremmer T, Berg C, Schäfer VS, Strizek B, Jimenez-Cruz J. Advancement of 3D printing technology for the development of a training model in US-guided vesicoamniotic shunting for early LUTO therapy. Acta Obstet Gynecol Scand 2024. [PMID: 38780288 DOI: 10.1111/aogs.14879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/27/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024]
Abstract
INTRODUCTION Prenatal lower urinary tract obstruction (LUTO) is a rare and challenging condition with potential severe morbidity and mortality. Prenatal shunting methods, specifically vesicoamniotic shunting (VAS) and fetal cystoscopy, aim to manage this condition. However, comprehensive education and training are hindered by the rarity of LUTO. To address this gap, we present a low-cost 3D-printed ultrasound training model for VAS in LUTO fetuses. The aim of the study was to evaluate ultrasound and haptic fidelity of the model. MATERIAL AND METHODS Ultrasound images of three LUTO fetuses at 12-14 weeks were utilized to create detailed 3D-printed models. Fusion360TM software generated stereo-lithography files, and the Formlabs Form3® printer, using Flexible 80A resin, produced the models. A simulation box mimicking uterine conditions and fetal anatomy was developed for testing. Ultrasound assessments determined model accuracy, and expert evaluations gauged fidelity for VAS placement. RESULTS The 3D-printed model accurately replicated LUTO fetal anatomy, demonstrating structural integrity and realistic sonographic and haptic feedback during 20 punctures. Macroscopic visualization confirmed the model's durability and authenticity. DISCUSSION This innovative 3D-printed model addresses the scarcity of LUTO cases and the lack of realistic training tools. Simulation models enhance skills, providing a controlled learning environment that bridges theoretical knowledge and clinical application, potentially improving patient outcomes. CONCLUSIONS The 3D-printed training model for VAS in LUTO represents a significant advancement in surgical education, offering realistic anatomical simulation and tactile feedback. Future studies should assess its effectiveness in enhancing surgical skills and impacting patient outcomes in clinical practice.
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Affiliation(s)
- Florian Recker
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Tobias Schremmer
- Department of Medicine III - Oncology, Hematology, Clinical Immunology and Rheumatology, University Hospital Bonn, Bonn, Germany
| | - Christoph Berg
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University of Cologne, Cologne, Germany
| | - Valentin Sebastian Schäfer
- Department of Medicine III - Oncology, Hematology, Clinical Immunology and Rheumatology, University Hospital Bonn, Bonn, Germany
| | - Brigitte Strizek
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Jorge Jimenez-Cruz
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
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Griffith AM, Woodward PJ, Kennedy AM. Troubleshooting Tips for Diagnosing Complex Fetal Genitourinary Malformations. Radiographics 2024; 44:e230084. [PMID: 38127660 DOI: 10.1148/rg.230084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Fetal genitourinary anomalies can present a diagnostic challenge for the radiologist. The absence of a normally located kidney may represent agenesis or be secondary to a fusion or migration abnormality. A dilated renal pelvis should prompt evaluation for a specific cause, including ureteropelvic junction obstruction, reflux, or an obstructed duplicated system. Cystic parenchymal changes are characteristic of a multicystic dysplastic kidney but may also be seen in obstructive cystic dysplasia. There are numerous causes of megacystis including chromosomal (trisomy 18 syndrome), obstruction (posterior urethral valves, urethral atresia), or muscular dysfunction (prune belly syndrome, megacystis microcolon intestinal hypoperistalsis syndrome). Important mimics of a large bladder include hydrocolpos and urogenital sinus or cloacal malformation. Complications of genitourinary malformations are common and include oligohydramnios, urinary ascites, and urinoma. Making an accurate diagnosis often requires additional US views beyond those obtained in the standard fetal survey and occasionally performing fetal MRI. The appropriate use of orthogonal T2-weighted sequences, in conjunction with diffusion-weighted images for evaluation of the kidneys and gradient-recalled-echo sequences for evaluation of T1-hyperintense meconium in the colon, can play an integral role in diagnosis. Accurate diagnosis of fetal genitourinary malformations is vital to direct patient counseling and pregnancy management as outcomes are highly variable. Some conditions can be surgically corrected quite simply, some require multiple complex procedures, and some are lethal. The authors offer troubleshooting tips to narrow the differential diagnosis for four observations: unilateral absent kidney, dilated renal pelvis, cystic renal parenchyma, and megacystis and its mimics. ©RSNA, 2023 Test Your Knowledge questions are available in the Online Learning Center.
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Affiliation(s)
- April M Griffith
- From the Department of Radiology and Imaging Sciences, University of Utah Health, 30 N Mario Capecchi Dr, 2nd Floor South, Salt Lake City, UT 84112
| | - Paula J Woodward
- From the Department of Radiology and Imaging Sciences, University of Utah Health, 30 N Mario Capecchi Dr, 2nd Floor South, Salt Lake City, UT 84112
| | - Anne M Kennedy
- From the Department of Radiology and Imaging Sciences, University of Utah Health, 30 N Mario Capecchi Dr, 2nd Floor South, Salt Lake City, UT 84112
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Ahmad E, Brumfield O, Masse O, Velasco-Annis C, Zhang J, Rollins CK, Connolly S, Barnewolt C, Shamshirsaz AA, Qaderi S, Javinani A, Warfield SK, Yang E, Gholipour A, Feldman HA, Estroff J, Grant PE, Vasung L. Atypical fetal brain development in fetuses with non-syndromic isolated musculoskeletal birth defects (niMSBDs). Cereb Cortex 2023; 33:10793-10801. [PMID: 37697904 PMCID: PMC10629896 DOI: 10.1093/cercor/bhad323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 09/13/2023] Open
Abstract
Non-syndromic, isolated musculoskeletal birth defects (niMSBDs) are among the leading causes of pediatric hospitalization. However, little is known about brain development in niMSBDs. Our study aimed to characterize prenatal brain development in fetuses with niMSBDs and identify altered brain regions compared to controls. We retrospectively analyzed in vivo structural T2-weighted MRIs of 99 fetuses (48 controls and 51 niMSBDs cases). For each group (19-31 and >31 gestational weeks (GW)), we conducted repeated-measures regression analysis with relative regional volume (% brain hemisphere) as a dependent variable (adjusted for age, side, and interactions). Between 19 and 31GW, fetuses with niMSBDs had a significantly (P < 0.001) smaller relative volume of the intermediate zone (-22.9 ± 3.2%) and cerebellum (-16.1 ± 3.5%,) and a larger relative volume of proliferative zones (38.3 ± 7.2%), the ganglionic eminence (34.8 ± 7.3%), and the ventricles (35.8 ± 8.0%). Between 32 and 37 GW, compared to the controls, niMSBDs showed significantly smaller volumes of central regions (-9.1 ± 2.1%) and larger volumes of the cortical plate. Our results suggest there is altered brain development in fetuses with niMSBDs compared to controls (13.1 ± 4.2%). Further basic and translational neuroscience research is needed to better visualize these differences and to characterize the altered development in fetuses with specific niMSBDs.
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Affiliation(s)
- Esha Ahmad
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Olivia Brumfield
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Olivia Masse
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Clemente Velasco-Annis
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Jennings Zhang
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Caitlin K Rollins
- Department of Neurology Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Susan Connolly
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Carol Barnewolt
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Alireza A Shamshirsaz
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Shohra Qaderi
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Ali Javinani
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Simon K Warfield
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Edward Yang
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Ali Gholipour
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Henry A Feldman
- Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Judy Estroff
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
- Maternal Fetal Care Center, Boston Children’s Hospital, Boston, MA 02115, United States
| | - Patricia E Grant
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
- Department of Radiology, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
| | - Lana Vasung
- Division of Newborn Medicine, Boston Children’s Hospital and Harvard Medical School, Boston, MA 02115, United States
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Flores-Torres J, Sanchez-Valle A, Duncan JR, Panzarino V, Rodriguez JM, Kirby RS. Lower Urinary Tract Obstruction in Newborns. Adv Pediatr 2023; 70:131-144. [PMID: 37422291 DOI: 10.1016/j.yapd.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2023]
Abstract
Lower urinary tract obstruction (LUTO) is a rare birth defect with a prevalence between 1 in 5,000 and 1 in 25,000 pregnancies. LUTO is one of the most common causes of congenital abnormalities of the renal tract. Several genetic conditions have been associated with LUTO. Most common causes of LUTO are posterior urethral valves and urethral atresia. Despite available prenatal and postnatal treatments, LUTO is a significant cause of morbidity and mortality in newborns causing significant end stage renal disease and pulmonary hypoplasia.
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Affiliation(s)
- Jaime Flores-Torres
- Division of Neonatology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa General Hospital, 5 Tampa General Circle HMT 4th Floor, Suite 450, Tampa, FL 33606, USA.
| | - Amarilis Sanchez-Valle
- Division of Genetics and Metabolism, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa General Hospital, 2 Tampa General Circle, Tampa, FL 33606, USA
| | - Jose R Duncan
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa General Hospital, 2 Tampa General Circle, Tampa, FL 33606, USA
| | - Valerie Panzarino
- Division of Pediatric Nephrology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa General Hospital, 2 Tampa General Circle, Tampa, FL 33606, USA
| | - Jessica Marie Rodriguez
- Division of Pediatric Nephrology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa General Hospital, Tampa, FL, USA; Johns Hopkins All Children's Hospital, St. Joseph's Hospital, 601 5th Street South, Suite 304,Street, Petersburg, FL 33701, USA
| | - Russell S Kirby
- Chiles Center, College of Public Health, University of South Florida, 13201 Bruce B Downs Boulevard, MDC56, Tampa, FL 33612, USA
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5
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Bastos FM, Leal CRV, Vaz de Castro PAS, Vaz KKB, Oliveira KKRD, Silva Filha RD, Pereira AK, Simões E Silva AC. Tubular and glomerular biomarkers of renal tissue function in the urine of fetuses with posterior urethral valves. J Pediatr Urol 2022; 18:368.e1-368.e9. [PMID: 35400574 DOI: 10.1016/j.jpurol.2022.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Posterior urethral valve (PUV) is a congenital malformation characterized by a membranous structure located in the prostatic portion of the male posterior urethra that obstructs the urinary flow. Efforts have been made to determine the degree of impairment of fetal kidney function in this condition. OBJECTIVE This study aimed to measure the levels of urinary biomarkers of glomerular and tubular functions in fetuses with PUV and to compare with the levels of the same molecules in healthy male premature newborns. STUDY DESIGN Urine samples from 43 fetuses with PUVs were collected and compared with urine samples from 40 healthy male newborns of the same gestational age (controls). Tubular and glomerular biomarkers levels were measured in urine samples by MILLIPLEX® assay kits. Levels of the molecules were related to creatinine (Cr) measurements at same urine samples and expressed as pg/mg Cr. Results were analysed with Graphpad Prism version 7.0 and SPSS version 20.0. RESULTS Fetuses with PUV showed a significant reduction in urine levels of Epidermal Growth Factor (EGF), Calbindin, Osteoactivin, Molecule Renal Injury 1 (KIM-1 and Factor of trefoil 3 (TFF-3) when compared to controls. On the other hand, urine levels of cystatin C and renin were higher in PUV fetuses. The levels of molecules also differed according to urine osmolality and grade of hydronephrosis. DISCUSSION Some urinary excreted molecules may indicate kidney damage in several segments along the nephron, while others may exert important functions. Mechanical and immunological mechanisms related to PUV might significantly modulate the synthesis of cytokines related to glomerular and tubular physiology, leading to alterations in urinary concentrations of those molecules. These biomarkers can be used as future diagnostic and prognostic markers in clinical practice. CONCLUSION Early kidney structural and functional impairment influenced the synthesis of glomerular and tubular molecules related to kidney physiological processes in fetuses with PUV.
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Affiliation(s)
- Fernando Macedo Bastos
- Department of Gynecology and Obstetrics, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil; Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | - Caio Ribeiro Vieira Leal
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | | | - Katarina Keyla Brito Vaz
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | | | - Roberta da Silva Filha
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | - Alamanda Kfoury Pereira
- Department of Gynecology and Obstetrics, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Ana Cristina Simões E Silva
- Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil; Department of Pediatrics, Faculty of Medicine, UFMG, Belo Horizonte, Minas Gerais, Brazil.
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6
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Horn-Oudshoorn EJJ, Knol R, Vermeulen MJ, Te Pas AB, Hooper SB, Cochius-den Otter SCM, Wijnen RMH, Crossley KJ, Rafat N, Schaible T, de Boode WP, Debeer A, Urlesberger B, Roberts CT, Kipfmueller F, Reiss IKM, DeKoninck PLJ. Physiological-based cord clamping versus immediate cord clamping for infants born with a congenital diaphragmatic hernia (PinC): study protocol for a multicentre, randomised controlled trial. BMJ Open 2022; 12:e054808. [PMID: 35304395 PMCID: PMC8935184 DOI: 10.1136/bmjopen-2021-054808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
INTRODUCTION Pulmonary hypertension is a major determinant of postnatal survival in infants with a congenital diaphragmatic hernia (CDH). The current care during the perinatal stabilisation period in these infants might contribute to the development of pulmonary hypertension after birth-in particular umbilical cord clamping before lung aeration. An ovine model of diaphragmatic hernia demonstrated that cord clamping after lung aeration, called physiological-based cord clamping (PBCC), avoided the initial high pressures in the lung vasculature while maintaining adequate blood flow, thereby avoiding vascular remodelling and aggravation of pulmonary hypertension. We aim to investigate if the implementation of PBCC in the perinatal stabilisation period of infants born with a CDH could reduce the incidence of pulmonary hypertension in the first 24 hours after birth. METHODS AND ANALYSIS We will perform a multicentre, randomised controlled trial in infants with an isolated left-sided CDH, born at ≥35.0 weeks. Before birth, infants will be randomised to either PBCC or immediate cord clamping, stratified by treatment centre and severity of pulmonary hypoplasia on antenatal ultrasound. PBCC will be performed using a purpose-built resuscitation trolley. Cord clamping will be performed when the infant is considered respiratory stable, defined as a heart rate >100 bpm, preductal oxygen saturation >85%, while using a fraction of inspired oxygen of <0.5. The primary outcome is pulmonary hypertension diagnosed in the first 24 hours after birth, based on clinical and echocardiographic parameters. Secondary outcomes include neonatal as well as maternal outcomes. ETHICS AND DISSEMINATION Central ethical approval was obtained from the Medical Ethical Committee of the Erasmus MC, Rotterdam, The Netherlands (METC 2019-0414). Local ethical approval will be obtained by submitting the protocol to the regulatory bodies and local institutional review boards. TRIAL REGISTRATION NUMBER NCT04373902.
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Affiliation(s)
- Emily J J Horn-Oudshoorn
- Division of Neonatology, Department of Paediatrics, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Ronny Knol
- Division of Neonatology, Department of Paediatrics, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Marijn J Vermeulen
- Division of Neonatology, Department of Paediatrics, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Stuart B Hooper
- The Ritchie Centre, Hudson Institute for Medical Research, Monash University, Melbourne, Victoria, Australia
| | - Suzan C M Cochius-den Otter
- Department of Paediatric Surgery and Intensive Care, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Rene M H Wijnen
- Department of Paediatric Surgery and Intensive Care, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Kelly J Crossley
- The Ritchie Centre, Hudson Institute for Medical Research, Monash University, Melbourne, Victoria, Australia
| | - Neysan Rafat
- Department of Neonatology, University Medical Centre Mannheim, Mannheim, Germany
| | - Thomas Schaible
- Department of Neonatology, University Medical Centre Mannheim, Mannheim, Germany
| | - Willem P de Boode
- Division of Neonatology, Department of Paediatrics, Radboudumc University Medical Center, Nijmegen, The Netherlands
| | - Anne Debeer
- Department of Neonatology, University Hospitals Leuven, Leuven, Belgium
| | - Berndt Urlesberger
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Calum T Roberts
- The Ritchie Centre, Hudson Institute for Medical Research, Monash University, Melbourne, Victoria, Australia
- Department of Paediatrics, Monash University, Melbourne, Victoria, Australia
| | - Florian Kipfmueller
- Department of Neonatology and Paediatric Intensive Care Medicine, University of Bonn Children's Hospital, Bonn, Germany
| | - Irwin K M Reiss
- Division of Neonatology, Department of Paediatrics, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Philip L J DeKoninck
- The Ritchie Centre, Hudson Institute for Medical Research, Monash University, Melbourne, Victoria, Australia
- Division of Obstetrics and Fetal Medicine, Department of Obstetrics and Gynaecology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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7
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van der Zanden LFM, Maj C, Borisov O, van Rooij IALM, Quaedackers JSLT, Steffens M, Schierbaum L, Schneider S, Waffenschmidt L, Kiemeney LALM, de Wall LLL, Heilmann S, Hofmann A, Gehlen J, Schumacher J, Szczepanska M, Taranta-Janusz K, Kroll P, Krzemien G, Szmigielska A, Schreuder MF, Weber S, Zaniew M, Roeleveld N, Reutter H, Feitz WFJ, Hilger AC. Genome-wide association study in patients with posterior urethral valves. Front Pediatr 2022; 10:988374. [PMID: 36238604 PMCID: PMC9552614 DOI: 10.3389/fped.2022.988374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Congenital lower urinary tract obstructions (LUTO) are most often caused by posterior urethral valves (PUV), a male limited anatomical obstruction of the urethra affecting 1 in 4,000 male live births. Little is known about the genetic background of PUV. Here, we report the largest genome-wide association study (GWAS) for PUV in 4 cohorts of patients and controls. The final meta-analysis included 756 patients and 4,823 ethnicity matched controls and comprised 5,754,208 variants that were genotyped or imputed and passed quality control in all 4 cohorts. No genome-wide significant locus was identified, but 33 variants showed suggestive significance (P < 1 × 10-5). When considering only loci with multiple variants residing within < 10 kB of each other showing suggestive significance and with the same effect direction in all 4 cohorts, 3 loci comprising a total of 9 variants remained. These loci resided on chromosomes 13, 16, and 20. The present GWAS and meta-analysis is the largest genetic study on PUV performed to date. The fact that no genome-wide significant locus was identified, can be explained by lack of power or may indicate that common variants do not play a major role in the etiology of PUV. Nevertheless, future studies are warranted to replicate and validate the 3 loci that yielded suggestive associations.
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Affiliation(s)
- Loes F M van der Zanden
- Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Carlo Maj
- Institute for Genomic Statistics and Bioinformatics, Medical Faculty, University of Bonn, Bonn, Germany
| | - Oleg Borisov
- Institute for Genomic Statistics and Bioinformatics, Medical Faculty, University of Bonn, Bonn, Germany
| | - Iris A L M van Rooij
- Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | | | - Luca Schierbaum
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Sophia Schneider
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Lea Waffenschmidt
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Lambertus A L M Kiemeney
- Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Liesbeth L L de Wall
- Division of Pediatric Urology, Department of Urology, Radboud Institute for Molecular Life Sciences, Radboudumc Amalia Children's Hospital, Nijmegen, Netherlands
| | - Stefanie Heilmann
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Aybike Hofmann
- Department of Pediatric Urology, Clinic St. Hedwig, University Medical Center Regensburg, Regensburg, Germany
| | - Jan Gehlen
- Center for Human Genetics, University Hospital of Marburg, Marburg, Germany
| | | | - Maria Szczepanska
- Department of Pediatrics, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
| | | | - Pawel Kroll
- Neurourology Unit, Pediatric Surgery and Urology Clinic, Poznań, Poland
| | - Grazyna Krzemien
- Department of Pediatrics and Nephrology, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Szmigielska
- Department of Pediatrics and Nephrology, Medical University of Warsaw, Warsaw, Poland
| | - Michiel F Schreuder
- Department of Pediatric Nephrology, Radboud Institute for Molecular Life Sciences, Radboudumc Amalia Children's Hospital, Nijmegen, Netherlands
| | - Stefanie Weber
- University Children Hospital Marburg, Philipps University Marburg, Marburg, Germany
| | - Marcin Zaniew
- Department of Pediatrics, University of Zielona Góra, Zielona Góra, Poland
| | - Nel Roeleveld
- Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Heiko Reutter
- Division of Neonatology and Pediatric Intensive Care, Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Wout F J Feitz
- Division of Pediatric Urology, Department of Urology, Radboud Institute for Molecular Life Sciences, Radboudumc Amalia Children's Hospital, Nijmegen, Netherlands
| | - Alina C Hilger
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, Bonn, Germany.,Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.,Research Center on Rare Kidney Diseases, University Hospital Erlangen, Erlangen, Germany
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8
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Fontanella F, Groen H, Duin LK, Suresh S, Bilardo CM. Z-scores of fetal bladder size for antenatal differential diagnosis between posterior urethral valves and urethral atresia. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2021; 58:875-881. [PMID: 33864313 PMCID: PMC9299997 DOI: 10.1002/uog.23647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/21/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To construct reference values for fetal urinary bladder distension in pregnancy and use Z-scores as a diagnostic tool to differentiate posterior urethral valves (PUV) from urethral atresia (UA). METHODS This was a prospective cross-sectional study in healthy singleton pregnancies aimed at constructing nomograms of fetal urinary bladder diameter and volume between 15 and 35 weeks' gestation. Z-scores of longitudinal bladder diameter (LBD) were calculated and validated in a cohort of fetuses with megacystis with ascertained postnatal or postmortem diagnosis, collected from a retrospective, multicenter study. Correlations between anatomopathological findings, based on medical examination of the infant or postmortem examination, and fetal megacystis were established. The accuracy of the Z-scores was evaluated by receiver-operating-characteristics (ROC)-curve analysis. RESULTS Nomograms of fetal urinary bladder diameter and volume were produced from three-dimensional ultrasound volumes in 225 pregnant women between 15 and 35 weeks of gestation. A total of 1238 urinary bladder measurements were obtained. Z-scores, derived from the fetal nomograms, were calculated in 106 cases with suspected lower urinary tract obstruction (LUTO), including 76 (72%) cases with PUV, 22 (21%) cases with UA, four (4%) cases with urethral stenosis and four (4%) cases with megacystis-microcolon-intestinal hypoperistalsis syndrome. Fetuses with PUV showed a significantly lower LBD Z-score compared to those with UA (3.95 vs 8.83, P < 0.01). On ROC-curve analysis, we identified 5.2 as the optimal Z-score cut-off to differentiate fetuses with PUV from the rest of the study population (area under the curve, 0.84 (95% CI, 0.748-0.936); P < 0.01; sensitivity, 74%; specificity, 86%). CONCLUSIONS Z-scores of LBD can distinguish reliably fetuses with LUTO caused by PUV from those with other subtypes of LUTO, with an optimal cut-off of 5.2. This information should be useful for prenatal counseling and management of LUTO. © 2021 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)
- F. Fontanella
- Department of Obstetrics and GynaecologyIsala HospitalZwolleThe Netherlands
| | - H. Groen
- Department of Epidemiology‐HPC FA40, University of GroningenUniversity Medical Center GroningenGroningenThe Netherlands
| | - L. K. Duin
- Department of Obstetrics and GynaecologyIsala HospitalZwolleThe Netherlands
| | - S. Suresh
- Mediscan Ultrasound CenterChennaiIndia
| | - C. M. Bilardo
- Department of Obstetrics and Prenatal DiagnosisUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
- Amsterdam UMC, Location VUAmsterdamThe Netherlands
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9
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Patwa P, Sharma C, Shekhar S, Jhirwal M. Bilateral Fetal Hydronephrosis presenting with Complete Penoscrotal Transposition at Birth: What to tell the Prospective Parents? JOURNAL OF FETAL MEDICINE 2021. [DOI: 10.1007/s40556-021-00324-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Two Cases of Fetal Lower Urinary Tract Obstruction (LUTO) with Similar Presentations Before But Contrasting Outcomes After Fetoscopic Laser Fulguration of Posterior Urethral Valves. JOURNAL OF FETAL MEDICINE 2021. [DOI: 10.1007/s40556-021-00308-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Nassr AA, Erfani H, Espinoza J, Sanz Cortes M, Donepudi R, Koh CJ, Roth DR, Braun MC, Angelo JR, Belfort MA, Shamshirsaz AA. Novel scoring system for determining fetal candidacy for prenatal intervention for severe congenital lower urinary tract obstruction. Eur J Obstet Gynecol Reprod Biol 2021; 262:118-123. [PMID: 34010724 DOI: 10.1016/j.ejogrb.2021.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/05/2021] [Accepted: 05/09/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To evaluate a novel scoring system that combines several prenatal parameters for selecting ideal candidates for fetal intervention, and for predicting postnatal survival in patients with severe fetal lower urinary tract obstruction (LUTO). METHODS We retrospectively reviewed all cases of severe LUTO evaluated for fetal intervention in a single large fetal center between January 2013 and December 2017. A scoring system for determining fetal candidacy for intervention was retrospectively developed based on postnatal outcomes. The proposed scoring system included fetal urinary biochemistry, renal ultrasound parameters, initial bladder volume, and degree of bladder refill. Relevant demographic characteristics, ultrasound reports and laboratory results were reviewed. Receiver operating characteristic (ROC) curves were used to select the cut-off values for initial bladder volume and degree of bladder refill and to evaluate the performance of the scoring system in predicting postnatal death. RESULTS Of the 79 LUTO patients evaluated, 31 were eligible for the study. The overall 6-month postnatal survival was 64.5 % (20/31). A scoring system (0-8) was suggested with 2 points for unfavorable biochemistry, 4 points for ultrasound evidence of dysplastic kidneys, 1 point for inadequate initial bladder volume and 1 point for inadequate bladder refill. Scores>3 (N = 7) were associated with 0 % 6-month survival. The ROC curve for predicting postnatal mortality showed area under curve (AUC) of 0.82 (95 % CI 0.65-0.99). Subgroup analysis within subjects who underwent fetal intervention (N = 22) also confirmed the significance of the distribution of the scoring system between groups who survived and those who did not after adjustment for GA at delivery (p = 0.01). CONCLUSION We propose a novel scoring system for antenatal evaluation of patients with severe LUTO which may be useful in selecting those candidates most appropriate for intervention and in counseling parents about predicted postnatal outcome.
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Affiliation(s)
- Ahmed A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States.
| | - Hadi Erfani
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Jimmy Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Magdalena Sanz Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Roopali Donepudi
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Chester J Koh
- Division of Pediatric Urology, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - David R Roth
- Renal Section, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Michael C Braun
- Renal Section, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Joseph R Angelo
- Renal Section, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Michael A Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
| | - Alireza A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, United States
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12
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Irfan A, O'Hare E, Jelin E. Fetal interventions for congenital renal anomalies. Transl Pediatr 2021; 10:1506-1517. [PMID: 34189109 PMCID: PMC8192995 DOI: 10.21037/tp-2020-fs-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Congenital abnormalities of the kidney and urinary tract (CAKUT) represent 20% of prenatally diagnosed congenital abnormalities. Although the majority of these abnormalities do not require intervention either pre or postnatally, there is a subset of patients whose disease is so severe that it may warrant intervention prior to delivery to prevent morbidity and mortality. These cases consist of patients with moderate lower urinary tract obstruction (LUTO) in which vesicocentesis, shunting or cystoscopy are options and patients with early pregnancy renal anhydramnios (EPRA) in whom amnioinfusion therapy may be an option. The main causes of EPRA are congenital bilateral renal agenesis (CoBRA), cystic kidney disease (CKD) and severe LUTO. Untreated, EPRA is universally fatal secondary to anhydramnios induced pulmonary hypoplasia. The evidence regarding therapy for LUTO is limited and the stopped early PLUTO (Percutaneous Shunting in Lower Urinary Tract Obstruction) trial was unable to provide definitive answers about patient selection. Evidence for EPRA therapy is also scant. Serial amnioinfusions have shown promise in cases of EPRA due to CoBRA or renal failure and this treatment modality forms the basis of the ongoing NIH funded RAFT (Renal Anhydramnios Fetal Therapy) trial. At present, there is consensus that treatment for EPRA should only occur in the setting of a clinical trial.
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Affiliation(s)
- Ahmer Irfan
- Department of Surgery, Division of Pediatric Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Elizabeth O'Hare
- Department of Surgery, Division of Pediatric Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Eric Jelin
- Department of Surgery, Division of Pediatric Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
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13
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Soto ÁL. [Genital abnormalities: Contextualization of a neglected area in prenatal diagnosis]. ACTA ACUST UNITED AC 2020; 71:275-285. [PMID: 33247891 DOI: 10.18597/rcog.3446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 08/18/2020] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To reflect on how the area of genital abnormalities has fallen behind in prenatal diagnosis. METHODS Based on the thesis that prenatal diagnosis of genital abnormalities has scarcely developed, a comparison with other areas of prenatal diagnosis and with its postnatal counterpart is presented; different explanations for this situation are examined; and a reflection is presented on ways to expand this field of knowledge. CONCLUSIONS Compared to other disciplines, prenatal diagnosis of genital abnormalities finds itself lagging behind in terms of diagnostic tools, management protocols and scientific literature. Potential causes include a perception of low prevalence and limited importance, or exploration challenges. Integration of current knowledge, together with the acquisition of the appropriate tools and translation to clinical medicine, would be a way to make this discipline stronger.
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Affiliation(s)
- Álvaro López Soto
- Unidad de Diagnóstico Prenatal,Hospital General Universitario Santa Lucía, Cartagena, España
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14
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Valenzuela I, van der Merwe J, De Catte L, Devlieger R, Deprest J, Lewi L. Foetal therapies and their influence on preterm birth. Semin Immunopathol 2020; 42:501-514. [PMID: 32785752 DOI: 10.1007/s00281-020-00811-2] [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: 06/29/2020] [Accepted: 07/26/2020] [Indexed: 12/12/2022]
Abstract
Foetal therapy aims to improve perinatal survival or to prevent severe long-term handicap. Foetal medicine opens a new territory by treating the foetus as a patient. The mother has nothing to gain in terms of health benefits, yet she is inherently also undergoing treatment. In utero foetal interventions can be divided into ultrasound-guided minimally invasive procedures, fetoscopic procedures and open hysterotomy procedures, which carry an inherent risk of ruptured membranes and preterm birth. In this review, we summarise the conditions that may benefit from foetal therapy and review the current therapies on offer, each with their associated risk of ruptured membrane and preterm birth. We also look into some risk limiting and preventative strategies to mitigate these complications.
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Affiliation(s)
- Ignacio Valenzuela
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium
| | - Johannes van der Merwe
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium.,Department of Obstetrics and Gynaecology, Division Woman and Child, University Hospitals Leuven, Leuven, Belgium
| | - Luc De Catte
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium.,Department of Obstetrics and Gynaecology, Division Woman and Child, University Hospitals Leuven, Leuven, Belgium
| | - Roland Devlieger
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium.,Department of Obstetrics and Gynaecology, Division Woman and Child, University Hospitals Leuven, Leuven, Belgium
| | - Jan Deprest
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium.,Department of Obstetrics and Gynaecology, Division Woman and Child, University Hospitals Leuven, Leuven, Belgium.,Institute for Women's Health, University College London, London, United Kingdom
| | - Liesbeth Lewi
- Department of Development and Regeneration, Cluster Woman and Child, Group Biomedical Sciences, KU Leuven University of Leuven, Leuven, Belgium. .,Department of Obstetrics and Gynaecology, Division Woman and Child, University Hospitals Leuven, Leuven, Belgium.
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15
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Warring SK, Novoa V, Shazly S, Trinidad MC, Sas DJ, Schiltz B, Prieto M, Terzic A, Ruano R. Serial Amnioinfusion as Regenerative Therapy for Pulmonary Hypoplasia in Fetuses With Intrauterine Renal Failure or Severe Renal Anomalies: Systematic Review and Future Perspectives. Mayo Clin Proc Innov Qual Outcomes 2020; 4:391-409. [PMID: 32793867 PMCID: PMC7411166 DOI: 10.1016/j.mayocpiqo.2020.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The aim of this study was to investigate the effect of serial amnioinfusion therapy (SAT) for pulmonary hypoplasia in lower urinary tract obstruction (LUTO) or congenital renal anomalies (CRAs), introduce patient selection criteria, and present a case of SAT in bilateral renal agenesis. We conducted a search of the MEDLINE, EMBASE, Web of Science, and Scopus databases for articles published from database inception to November 10, 2017. Eight studies with 17 patients (7 LUTO, 8 CRA, and 2 LUTO + CRA) were included in the study. The median age of the mothers was 31 years (N=9; interquartile range [IQR], 29-33.5 years), the number of amnioinfusions was 7 (N=17; IQR, 4.5-21), gestational age at first amnioinfusion was 23 weeks and 4 days (N=17; IQR, 21-24.07), gestational age at delivery was 32 weeks and 2 days (N=17; IQR, 30 weeks to 35 weeks and 6.5 days), birthweight of newborns was 3.7 kg (N= 9; IQR, 2.7-3.7 kg), Apgar score at 1 minute was 2.5 (N=8; IQR, 1-6.5), and Apgar score at 5 minutes was 5.5 (N=8; IQR, 0-7.75). In conclusion, SAT may provide fetal pulmonary palliation by reducing the risk of newborn pulmonary compromise secondary to oligohydramnios. Multidisciplinary research efforts are required to further inform treatment and counseling guidelines. We propose a multidisciplinary approach to prenatal classification of fetuses with LUTO to inform patient selection.
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Key Words
- AF, amniotic fluid
- AFI, AF index
- AFV, AF volume
- BRA, bilateral renal agenesis
- CRA, congenital renal anomaly
- DOL, day of life
- GA, gestational age
- IQR, interquartile range
- LUTO, lower urinary tract obstruction
- MVP, maximal vertical pocket
- PD, peritoneal dialysis
- PPROM, preterm premature rupture of membranes
- SAT, serial amnioinfusion therapy
- WHO, World Health Organization
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Affiliation(s)
- Simrit K Warring
- Department of Obstetrics & Gynecology, Mayo Clinic, Rochester, MN
| | - Victoria Novoa
- Department of Obstetrics & Gynecology, Vanderbilt University Medical Center, Nashville, TN
| | - Sherif Shazly
- Department of Obstetrics & Gynecology, Mayo Clinic, Rochester, MN
| | - Mari Charisse Trinidad
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN
| | - David J Sas
- Division of Pediatric Nephrology, Department of Pediatric & Adolescent Medicine, Mayo Clinic, Rochester, MN
| | - Brenda Schiltz
- Division of Pediatric Critical Care Medicine, Department of Pediatric & Adolescent Medicine, Mayo Clinic, Rochester, MN
| | - Mikel Prieto
- Department of Transplantation Surgery, Mayo Clinic, Rochester, MN
| | - Andre Terzic
- Department of Cardiovascular Disease, Mayo Clinic, Rochester, MN
| | - Rodrigo Ruano
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN
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16
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Monteiro S, Nassr AA, Yun PS, Voigt R, Koh CJ, Roth DR, Braun M, Angelo J, Moscardo I, Espinoza J, Shamshirsaz AA, Belfort M, Ruano R, Sanz Cortes M. Neurodevelopmental Outcome in Infants with Lower Urinary Tract Obstruction Based on Different Degrees of Severity. Fetal Diagn Ther 2020; 47:587-596. [PMID: 32146466 DOI: 10.1159/000504977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 11/25/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To determine postnatal neurodevelopmental (ND) outcomes for children with congenital lower urinary tract obstruction (LUTO) based on disease severity. METHODS Twenty male infants with LUTO were classified prenatally as Stage 1 (normal amniotic fluid and renal function; n = 5), Stage 2 (signs of obstruction with preserved renal function; n = 13), and Stage 3 (signs of severe renal damage; n = 2). ND status was assessed using the Developmental Profile-3 test in 5 developmental domains (physical, adaptive behavior, social-emotional, cognitive, and communication). Each domain was considered to be delayed if standard scores were 2 or more SD below the mean. ND outcomes were compared between cases with an expected normal renal function (LUTO Stage 1) and those with impaired renal function (LUTO Stages 2 and 3). Results from cases with Stage 2 were also compared to those from Stage 3. ORs were calculated to predict risk for adverse ND outcome for each domain considering prenatal and postnatal factors. RESULTS Gestational age (GA) at the diagnosis of LUTO was similar between both groups (Stage 1: 24.85 ± 7.87 vs. Stages 2 and 3: 21.4 ± 4.31 weeks; p = 0.24). Twelve of 15 cases with Stage 2 or 3 underwent vesicoamniotic shunt placement compared to none of Stage 1 fetuses (p < 0.01). No differences in GA at delivery were detected between the groups (37.9 ± 1.6 vs. 35.1 ± 3.6 weeks; p = 0.1). One of the infants in the Stage 2 and 3 groups received a kidney transplant during follow-up. One case (20%) from Stage 1 group required dialysis during the first 6 months of life, and 1 case from Stage 2 to 3 group required it during the first 6 months (p = 1.0), whereas 3 additional cases needed dialysis from 6 to 24 months (p = 0.6). Mean age at Developmental Profile 3 (DP-3) testing was 20.3 ± 12.3 months (Stage 1: 11.2 ± 8.6 vs. Stages 2 and 3: 23.4 ± 13.4 months; p = 0.07). Fifteen of the 20 patients (75%) had no ND delays. Of the 5 patients with ND delays, 4 received dialysis. No differences in ND outcomes between infants with LUTO Stage 1 and those with Stages 2 and 3 were detected except for a trend toward better physical development in Stage 1 (102.6 ± 11.6 vs. 80.7 ± 34.9; p = 0.05). Infants diagnosed with LUTO Stage 3 showed significantly lower adaptive scores than those diagnosed with Stage 2 (Stage 2: 101.9 ± 22.3 vs. Stage 3: 41.5 ± 30.4; p = 0.04) and a nonsignificant trend for lower results in physical (85.8 ± 33.0 vs. 47.5 ± 38.9; p = 0.1) and socio-emotional (94.7 ±17.9 vs. 73.5 ± 13.4; p = 0.1) domains. Infants who received dialysis showed 15-fold increased risk (95% CI 0.89-251) for delayed socio-emotional development (p = 0.06). Diagnosis of fetal renal failure increased the risk for delays in the adaptive domain 30-fold (95% CI 1.29-93.1; p = 0.03). Infants with abnormal renal function had 19 times (95% CI 1.95-292) increased risk for delays in the physical domain (p = 0.03). CONCLUSIONS While most patients with LUTO do not exhibiting ND delays, our results support the importance of ND monitoring, especially in severe forms of LUTO, as increased severity of this condition may be associated with poorer ND outcomes.
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Affiliation(s)
- Sonia Monteiro
- Department of Developmental Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Ahmed A Nassr
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Peter S Yun
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Robert Voigt
- Department of Developmental Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Chester J Koh
- Division of Urology, Department of Surgery, Texas Children's Hospital, and Scott Department of Urology, Baylor College of Medicine, Houston, Texas, USA
| | - David R Roth
- Division of Urology, Department of Surgery, Texas Children's Hospital, and Scott Department of Urology, Baylor College of Medicine, Houston, Texas, USA
| | - Michael Braun
- Department of Nephrology, Baylor College of Medicine, Houston, Texas, USA
| | - Joseph Angelo
- Department of Nephrology, Baylor College of Medicine, Houston, Texas, USA
| | - Isabel Moscardo
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA.,Department of Obstetrics and Gynecology, Hospital Clinic, Valencia, Spain
| | - Jimmy Espinoza
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Alireza A Shamshirsaz
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Michael Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Rodrigo Ruano
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, New York, USA
| | - Magdalena Sanz Cortes
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA,
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17
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Renal outcomes of neonates with early presentation of posterior urethral valves: a 10-year single center experience. J Perinatol 2020; 40:112-117. [PMID: 31471579 PMCID: PMC7223871 DOI: 10.1038/s41372-019-0489-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/30/2019] [Accepted: 07/10/2019] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Evaluate renal outcomes and early predictive factors in infants with congenital posterior urethral valves who required catheter or surgical urinary tract decompression within the first 7 days of life. STUDY DESIGN A 10-year retrospective study at a single hospital. Primary outcomes were estimated glomerular filtration rate (eGFR) and development of end stage renal disease (ESRD). RESULTS Of 35 infants, 50% developed eGFR <90 mL/min/1.73 m2 and 15% progressed to ESRD. Nadir creatinine, need for invasive ventilation in the newborn period, and need for surgical diversion after catheter diversion were associated with worse outcomes. 50% of infants requiring invasive ventilation as neonates developed eGFR <60 mL/min/1.73 m2 in childhood. CONCLUSIONS Half of infants with early presentation and intervention developed significant renal insufficiency in childhood, similar to children with later presentation or who had fetal intervention. Invasive ventilation in the newborn period and need for surgical urinary diversion are associated with worse outcomes.
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18
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Co-existence of CPAM with Megacystis Due to Posterior Urethral Valve and Cardiac Dysfunction in a Monozygotic Twin Pregnancy. JOURNAL OF FETAL MEDICINE 2019. [DOI: 10.1007/s40556-019-00220-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Nassr AA, Shamshirsaz AA, Erfani H, Espinoza J, Sanz Cortes M, Koh CJ, Roth DR, Angelo JR, Mandy GT, Braun MC, Ruano R, Belfort MA. Outcome of fetuses with lower urinary tract obstruction and normal amniotic fluid volume in second trimester of pregnancy. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 54:500-505. [PMID: 30977189 DOI: 10.1002/uog.20288] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/15/2019] [Accepted: 04/05/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE Congenital lower urinary tract obstruction (LUTO) is a rare condition with high perinatal mortality and morbidity when associated with severe oligohydramnios or anhydramnios in the second trimester of pregnancy. Severe pulmonary hypoplasia and end-stage renal disease are the underlying causes of poor neonatal outcome in these cases. However, little is known about the subset of fetal LUTO that is associated with a normal volume of amniotic fluid at midgestation. The objective of the current study was to describe the natural history, underlying causes, survival and postnatal renal function outcomes in pregnancies with fetal LUTO and normal amniotic fluid volume during the second trimester of pregnancy. METHODS This was a retrospective study of all pregnancies with fetal LUTO and normal amniotic fluid volume in the second trimester that received prenatal and postnatal care at our quaternary care institution between 2013 and 2017. Data on demographic characteristics, fetal interventions, perinatal survival, need for neonatal respiratory support, postnatal renal function and need for dialysis at the age of 1 and 24 months were analyzed. RESULTS Of the 18 fetuses that met the study criteria, 17 (94.4%) survived the perinatal period. Eleven (61.1%) pregnancies developed oligohydramnios in the third trimester, six of which were eligible for and underwent fetal intervention with vesicoamniotic shunt placement, which was performed successfully in all six cases. Two (11.1%) neonates required respiratory support owing to pulmonary hypoplasia. At the age of 2 years, 14 children had follow-up information available, two (14.3%) of whom had normal renal function, eight (57.1%) had developed some degree of chronic kidney disease (Stage 1-4) and four (28.6%) had developed end-stage renal disease (ESRD), including two who had already manifested ESRD in the neonatal period. CONCLUSIONS Most fetuses diagnosed prenatally with LUTO that is associated with a normal volume of amniotic fluid at midgestation will have a favorable outcome in terms of perinatal survival and few will need long-term respiratory support. However, these children are still at increased risk for chronic renal disease, ESRD and need for renal replacement therapy. Larger multicenter studies are needed to characterize the prenatal factors associated with postnatal renal function, and to investigate the role of fetal intervention in the group of fetuses that present with late-onset oligohydramnios and evidence of preserved fetal renal function. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A A Nassr
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
- Department of Obstetrics and Gynecology, Women's Health Hospital, Assiut University, Assiut, Egypt
| | - A A Shamshirsaz
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - H Erfani
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - J Espinoza
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - M Sanz Cortes
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - C J Koh
- Division of Pediatric Urology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - D R Roth
- Division of Pediatric Urology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - J R Angelo
- Renal Section, Department of Pediatrics, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - G T Mandy
- Department of Pediatrics, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - M C Braun
- Renal Section, Department of Pediatrics, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
| | - R Ruano
- Department of Obstetrics and Gynecology, Mayo Clinic Fetal Diagnostic and Therapeutic Center, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - M A Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
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20
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Fontanella F, van Scheltema PNA, Duin L, Cohen-Overbeek TE, Pajkrt E, Bekker MN, Willekes C, Oepkes D, Bilardo CM. Antenatal staging of congenital lower urinary tract obstruction. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 53:520-524. [PMID: 29978555 DOI: 10.1002/uog.19172] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 06/10/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To propose a staging system for congenital lower urinary tract obstruction (LUTO) capable of predicting the severity of the condition and its prognosis. METHODS This was a national retrospective study carried out at the eight Academic Hospitals in The Netherlands. We collected prenatal and postnatal data of fetuses at high risk of isolated LUTO that were managed conservatively. Postnatal renal function was assessed by the estimated glomerular filtration rate (eGFR), calculated using the Schwartz formula, considering the length of the infant and the creatinine nadir in the first year after birth. Receiver-operating characteristics (ROC) curve analysis, univariate analysis and multivariate logistic regression analysis with stepwise backward elimination were performed in order to identify the best antenatal predictors of perinatal mortality and postnatal renal function. RESULTS In total, 261 fetuses suspected of having LUTO and managed conservatively were included in the study. The pregnancy was terminated in 110 cases and perinatal death occurred in 35 cases. Gestational age at appearance of oligohydramnios showed excellent accuracy in predicting the risk of perinatal mortality with an area under the ROC curve of 0.95 (P < 0.001) and an optimal cut-off at 26 weeks' gestation. Fetuses with normal amniotic fluid (AF) volume at 26 weeks' gestation presented with low risk of poor outcome and were therefore defined as cases with mild LUTO. In fetuses referred before the 26th week of gestation, the urinary bladder volume (BV) was the best unique predictor of perinatal mortality. ROC curve analysis identified a BV of 5.4 cm3 and appearance of oligohydramnios at 20 weeks as the best threshold for predicting an adverse outcome. LUTO cases with a BV ≥ 5.4 cm3 or abnormal AF volume before 20 weeks' gestation were defined as severe and those with BV < 5.4 cm3 and normal AF volume at the 20 weeks' scan were defined as moderate. Risk of perinatal mortality significantly increased according to the stage of severity, from mild to moderate to severe stage, from 9% to 26% to 55%, respectively. Similarly, risk of severely impaired renal function increased from 11% to 31% to 44%, for mild, moderate and severe LUTO, respectively. CONCLUSIONS Gestational age at appearance of oligo- or anhydramnios and BV at diagnosis can accurately predict mortality and morbidity in fetuses with LUTO. Our proposed staging system can triage reliably fetuses with LUTO and predict the severity of the condition and its prognosis. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- F Fontanella
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - L Duin
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - T E Cohen-Overbeek
- Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - E Pajkrt
- Department of Obstetrics and Gynecology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - M N Bekker
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C Willekes
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center, Grow School for Oncology and Medical Biology, Maastricht, The Netherlands
| | - D Oepkes
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | - C M Bilardo
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, VU University Medical Center, Amsterdam, The Netherlands
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21
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Fontanella F, Duin LK, Adama van Scheltema PN, Cohen‐Overbeek TE, Pajkrt E, Bekker M, Willekes C, Bax CJ, Gracchi V, Oepkes D, Bilardo CM. Prenatal diagnosis of LUTO: improving diagnostic accuracy. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2018; 52:739-743. [PMID: 29266464 PMCID: PMC6587765 DOI: 10.1002/uog.18990] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/13/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To propose a clinical score for the optimal antenatal diagnosis of fetal lower urinary tract obstruction (LUTO) in the second and third trimesters of pregnancy, as an alternative to the commonly used ultrasound triad of megacystis, keyhole sign and hydronephrosis. METHODS This was a national retrospective study carried out at the eight tertiary fetal medicine units (FMUs) in The Netherlands. Only cases referred for megacystis from the second trimester onwards and with a clear postnatal diagnosis were included in the study. At referral, data were collected on amniotic fluid volume, renal cortical appearance, bladder volume, hydronephrosis, fetal ascites, ureteral size, keyhole sign, fetal sex and gestational age. Multivariate analysis was performed, starting by including all antenatal variables, and then excluding the weakest predictors using the backward stepwise strategy. RESULTS Over a 7-year period, 312 fetuses with a diagnosis of megacystis were referred to the eight Dutch tertiary FMUs. A final diagnosis was achieved in 143 cases, including 124 of LUTO and 19 reclassified after birth as non-obstructive megacystis. The optimal bladder volume cut-off for prediction of LUTO was 35 cm3 (area under the curve (AUC) = 0.7, P = 0.03). The clinical score formulated on the basis of the multivariate analysis included fetal sex, degree of bladder distension, ureteral size, oligo- or anhydramnios and gestational age at referral. The combination of these five variables demonstrated good accuracy in discriminating LUTO from non-obstructive megacystis (AUC = 0.84, P < 0.001), compared with the poor performance of the ultrasound triad (AUC = 0.63, P = 0.07). CONCLUSIONS We propose a clinical score that combines five antenatal variables for the prospective diagnosis of congenital LUTO. This score showed good discriminative capacity in predicting LUTO, and better diagnostic accuracy compared with that of the classic ultrasound triad. Future studies to validate these results should be carried out in order to refine antenatal management of LUTO and prevent inappropriate fetal interventions. © 2017 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- F. Fontanella
- Department of Obstetrics, Gynaecology and Prenatal Diagnosis, University Medical Center GroningenUniversity of GroningenThe Netherlands
| | - L. K. Duin
- Department of Obstetrics, Gynaecology and Prenatal Diagnosis, University Medical Center GroningenUniversity of GroningenThe Netherlands
| | - P. N. Adama van Scheltema
- Department of Obstetrics, Gynaecology and Prenatal DiagnosisLeiden University Medical CenterLeidenThe Netherlands
| | - T. E. Cohen‐Overbeek
- Department of Obstetrics and Gynaecology, Division of Obstetrics and Prenatal MedicineErasmus MC University Medical CenterRotterdamThe Netherlands
| | - E. Pajkrt
- Department of ObstetricsAcademic Medical Center AmsterdamAmsterdamThe Netherlands
| | - M. Bekker
- Department of Obstetrics, Gynaecology and Prenatal DiagnosisRadboud University Medical CenterNijmegenThe Netherlands
- Department of Obstetrics, Gynaecology and Prenatal DiagnosisUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - C. Willekes
- Department of Obstetrics, Gynaecology and Prenatal Diagnosis, University Medical CenterGrow School for Oncology and Medical BiologyMaastrichtThe Netherlands
| | - C. J. Bax
- Department of Obstetrics, Gynaecology and Prenatal DiagnosisVU University Medical CenterAmsterdamThe Netherlands
| | - V. Gracchi
- Department of PediatricsUniversity Medical Center Groningen, University of GroningenThe Netherlands
| | - D. Oepkes
- Department of Obstetrics, Gynaecology and Prenatal DiagnosisLeiden University Medical CenterLeidenThe Netherlands
| | - C. M. Bilardo
- Department of Obstetrics, Gynaecology and Prenatal Diagnosis, University Medical Center GroningenUniversity of GroningenThe Netherlands
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22
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Fontanella F, Duin L, Adama van Scheltema PN, Cohen-Overbeek TE, Pajkrt E, Bekker M, Willekes C, Bax CJ, Oepkes D, Bilardo CM. Antenatal Workup of Early Megacystis and Selection of Candidates for Fetal Therapy. Fetal Diagn Ther 2018; 45:155-161. [PMID: 29772579 DOI: 10.1159/000488282] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/07/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To investigate the best criteria for discriminating fetuses with isolated posterior urethral valves from those theoretically not eligible for fetal treatment because of complex megacystis, high chance of spontaneous resolution, and urethral atresia. METHODS A retrospective national study was conducted in fetuses with megacystis detected before 17 weeks' gestation (early megacystis). RESULTS In total, 142 cases with fetal megacystis were included in the study: 52 with lower urinary tract obstruction, 29 with normal micturition at birth, and 61 with miscellaneous syndromal associations, chromosomal and multiple structural abnormalities (complex megacystis). Only a nuchal translucency > 95th centile, and not a longitudinal bladder diameter ≤15 mm (p = 0.24), significantly increased the risk of complex megacystis (p < 0.01). Cases with a high chance of spontaneous resolution were identified by using the cut-off of 12 mm, as demonstrated in a previous study, and the finding of an associated umbilical cord cyst carried a high-risk of urethral atresia (odds ratio: 15; p = 0.026), an unfavorable condition for antenatal treatment. An algorithm encompassing these three criteria demonstrated good accuracy in selecting fetuses theoretically eligible for fetal treatment (specificity 73%; sensitivity 92%). CONCLUSIONS Cases theoretically eligible for early fetal therapy are those with normal nuchal translucency, a longitudinal bladder diameter > 12 mm, and without ultrasound evidence of umbilical cord cysts.
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Affiliation(s)
- Federica Fontanella
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The
| | - Leonie Duin
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Phebe N Adama van Scheltema
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Leiden University Medical Center, Leiden, The Netherlands
| | - Titia E Cohen-Overbeek
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Eva Pajkrt
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - Mireille Bekker
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Christine Willekes
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center, Grow School for Oncology and Medical Biology, Maastricht, The Netherlands
| | - Caroline J Bax
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, VU University Medical Center, Amsterdam, The Netherlands
| | - Dick Oepkes
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, Leiden University Medical Center, Leiden, The Netherlands
| | - Catia M Bilardo
- Department of Obstetrics, Gynecology and Prenatal Diagnosis, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Johnson MP, Wilson RD. Shunt-based interventions: Why, how, and when to place a shunt. Semin Fetal Neonatal Med 2017; 22:391-398. [PMID: 28964685 DOI: 10.1016/j.siny.2017.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The broad categories of surgical fetal therapy can be separated into either open surgical techniques or minimally invasive endoscopic/ultrasound-guided techniques that require only puncture of the uterus with single or multiple small ports. Benefits of fetoscopic or ultrasound-guided fetal intervention include decreased uterine irritability, decreased incidence of preterm labor, and avoidance of risks associated with hysterotomy and commitment to cesarean delivery for future pregnancies. Fetal abnormalities potentially amenable to ultrasound-guided drainage techniques include thoracic fluid-filled lesions and lower urinary tract obstruction.
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Affiliation(s)
- Mark P Johnson
- The Center for Fetal Diagnosis and Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - R Douglas Wilson
- Departments of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada
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