1
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Moon-Grady AJ, Byrne FA, Lusk LA, Keller RL. Expected small left heart size in the presence of congenital diaphragmatic hernia: Fetal values and Z-scores for infants confirmed to have no heart disease postnatally. Front Pediatr 2022; 10:1083370. [PMID: 36561485 PMCID: PMC9763578 DOI: 10.3389/fped.2022.1083370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES In fetuses with left-sided congenital diaphragmatic hernia (CDH), left heart structures may appear small, but usually normalize after birth in the absence of structural cardiac anomalies. To decrease the possibility of an erroneous diagnosis of structural heart disease, we identify normal values for left heart structures in the presence of left CDH and secondarily investigate the relationship of left heart size and survival to neonatal hospital discharge. METHODS Left heart structures [mitral valve (MV) and aortic valve (AoV) annulus diameter, left ventricle (LV) length and width] were measured by fetal echocardiogram in fetuses with left CDH and no congenital heart disease. We generated linear regression models to establish the relationship of gestational age for each left heart structure using data from fetuses who survived after birth. We calculated z-scores (normalized to gestational age), and assessed the relationship of survival to the size of each structure. RESULTS One hundred forty-two fetuses underwent fetal echocardiogram (median 25 weeks' gestation, IQR 23, 27 weeks). Left heart structures were deemed small when using published normative data from unaffected fetuses (z-scores: MV -1.09 ± 1.35, AoV -2.12 ± 1.16, LV length -1.36 ± 1.24, LV width -4.79 ± 0.79). CDH-specific models derived from log-transformed values yielded left-shifted distributions, reflecting the small structures (mean z-score lower by: MV 0.99 ± 0.30, AoV 2.04 ± 0.38, LV length 1.30 ± 0.36, and LV width 4.69 ± 0.28; p < 0.0001 for all comparisons). Non-survivors had worse z-scores than survivors for all measurements, but this did not reach statistical significance. CONCLUSIONS Log-transformed linear models generated new normative data for fetal left heart structures in left CDH, which may be used to allay antenatal concerns regarding structural left heart anomalies. There were no significant differences in z-scores between survivors and non-survivors, suggesting that in the absence of true structural disease, cardiac evaluation is not predictive in isolation and that causes of mortality are likely multifactorial in this population.
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Affiliation(s)
- Anita J Moon-Grady
- Division of Pediatric Cardiology, University of California San Francisco, Benioff Children's Hospital, San Francisco, CA, United States.,Fetal Treatment Center, University of California San Francisco, Benioff Children's Hospital, San Francisco, CA, United States
| | - Francesca A Byrne
- Pacific Cardiovascular Associates, Pediatric Cardiology, Orange, CA, United States
| | - Leslie A Lusk
- Division of Neonatology, Department of Pediatrics UCSF Benioff Children's Hospital, Oakland, CA, United States
| | - Roberta L Keller
- Fetal Treatment Center, University of California San Francisco, Benioff Children's Hospital, San Francisco, CA, United States.,Division of Neonatology, University of California San Francisco, Benioff Children's Hospital, San Francisco CA, United States
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2
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Prenatal diagnosis of left side congenital diaphragmatic hernia associated with gastric perforation. Taiwan J Obstet Gynecol 2021; 60:370-372. [PMID: 33678346 DOI: 10.1016/j.tjog.2021.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2020] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE A congenital diaphragmatic hernia (CDH) complicated with gastric perforation is extremely rare. Herein, we report an unusual case of unexpected intrauterine gastric perforation of a left side CDH with concurrent pleural effusion and ascites. CASE REPORT A 21-year-old female underwent prenatal ultrasound at 37 weeks of gestation and revealed a left side CDH, pleural effusion with a large thick-walled cystic mass over the left thorax, ascites, and polyhydramnios. Under the impression of CDH with suspected gastric perforation, Cesarean delivery was arranged and a male neonate was delivered. The neonate received emergency laparotomy soon and a herniation originated from the foramen of Bochdalek and a perforation located in the stomach body along the greater curvature were found. The pathologic diagnosis was consistent with a spontaneous gastric perforation with ischemic change. CONCLUSION Sonographic findings of pleural effusion and ascites associated with CDH are clues of antenatal gastrointestinal perforation.
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3
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Pinton A, Boubnova J, Becmeur F, Kuhn P, Senat MV, Stirnemann J, Capelle M, Rosenblatt J, Massardier J, Vaast P, Le Bouar G, Desrumaux A, Connant L, Begue L, Parmentier B, Perrotin F, Diguet A, Benoist G, Muszynski C, Scalabre A, Winer N, Michel JL, Casagrandre-Magne F, Jouannic JM, Gallot D, Coste Mazeau P, Sapin E, Maatouk A, Saliou AH, Sentilhes L, Biquard F, Mottet N, Favre R, Benachi A, Sananès N. Is laterality of congenital diaphragmatic hernia a reliable prognostic factor? French national cohort study. Prenat Diagn 2020; 40:949-957. [PMID: 32279384 DOI: 10.1002/pd.5706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/07/2019] [Accepted: 03/21/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVES The objective of this study was to assess whether the laterality of congenital diaphragmatic hernia (CDH) was a prognostic factor for neonatal survival. METHODS This was a cohort study using the French national database of the Reference Center for Diaphragmatic Hernias. The principal endpoint was survival after hospitalization in intensive care. We made a comparative study between right CDH and left CDH by univariate and multivariate analysis. Terminations and stillbirths were excluded from analyses of neonatal outcomes. RESULTS A total of 506 CDH were included with 67 (13%) right CDH and 439 left CDH (87%). Rate of survival was 49% for right CDH and 74% for left CDH (P < .01). Multivariate analysis showed two factors significantly associated with mortality: thoracic herniation of liver (OR 2.27; IC 95% [1.07-4.76]; P = .03) and lung-to-head-ratio over under expected (OR 2.99; IC 95% [1.41-6.36]; P < .01). Side of CDH was not significantly associated with mortality (OR 1.87; IC 95% [0.61-5.51], P = .26). CONCLUSION Rate of right CDH mortality is more important than left CDH. Nevertheless after adjusting for lung-to-head-ratio and thoracic herniation of liver, right CDH does not have a higher risk of mortality than left CDH.
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Affiliation(s)
- Anne Pinton
- Department of Obstetrics and Gynecology, Hôpital Trousseau, AP-HP, Paris, France.,Sorbonne Université, boulevard de l'Hôpital, Paris, France
| | - Julia Boubnova
- Department of Obstetrics and Gynecology, Maternité de la Conception, Gynepole, Marseille, France
| | - François Becmeur
- Department of Pediatric Surgery, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Pierre Kuhn
- Department of Neonatal Intensive Care Unit, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Institut des Neurosciences Cellulaires et Intégratives, UPR 3212, CNRS et Université de Strasbourg, Strasbourg, France
| | - Marie-Victoire Senat
- Department of Obstetrics and Gynecology, Maternal-fetal medicine, Hôpital Bicêtre, AP-HP, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Julien Stirnemann
- Department of Obstetrics and Gynecology, Maternal-fetal medicine, Hôpital Necker-Enfants malades, AP-HP, Paris, France.,EHU7328, Université de Paris and Institut IMAGINE, Paris, France
| | - Marianne Capelle
- Department of Obstetrics and Gynecology, Maternité de la Conception, Gynepole, Marseille, France
| | - Jonathan Rosenblatt
- Department of Obstetrics and Gynecology, Maternal-fetal medicine, Hôpital Universitaire Robert-Debré, AP-HP, Paris, France
| | - Jérôme Massardier
- Department of Obstetrics and Gynecology, Maternal-fetal medicine, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, University Claude Bernard, Lyon, France
| | - Pascal Vaast
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Lille, Lille, France
| | - Gwenaelle Le Bouar
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Rennes, University of Rennes 1, Rennes, France
| | - Amélie Desrumaux
- Department of Pediatrics, Centre Hospitalo-Universitaire de Grenoble, Grenoble, France
| | - Laure Connant
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France
| | - Laetitia Begue
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Montpellier, Montpellier, France
| | - Benoit Parmentier
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Poitiers, Poitiers, France
| | - Franck Perrotin
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Tours, François Rabelais University, Tours, France
| | - Alain Diguet
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Rouen, Rouen, France
| | - Guillaume Benoist
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Caen, Normandie University, Caen, France
| | - Charles Muszynski
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire d'Amiens, Amiens, France
| | - Aurélien Scalabre
- Department of Pediatric Surgery, Centre Hospitalo-Universitaire de Saint Etienne, Saint-Etienne, France
| | - Norbert Winer
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Nantes, Nantes, France.,NUN, INRAE, UMR 1280, PhAN, Université de Nantes, CIC Femme enfant adolescent, Nantes, France
| | - Jean-Luc Michel
- Department of Pediatric Surgery, Centre Hospitalo-Universitaire de Félix Guyon, Bellepierre Saint-Denis, Saint-Denis, France
| | | | - Jean-Marie Jouannic
- Department of Obstetrics and Gynecology, Fetal Medicine Department, Hôpital Trousseau AP-HP, Paris, France.,Sorbonne université, boulevard de l'Hôpital, Paris, France
| | - Denis Gallot
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire Estaing, Pole FEE, Clermont-Ferrand, France
| | - Perrine Coste Mazeau
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Limoges, Limoges, France
| | - Emmanuel Sapin
- Department of Pediatric Surgery, François-Mitterrand Teaching Hospital, LE2I UMR CNRS 6306, Arts et Métiers, University of Burgundy, Dijon, France
| | - Alexis Maatouk
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Nancy, Nancy, France
| | - Anne-Hélène Saliou
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Brest, Hôpital Morvan, Brest, France
| | - Loïc Sentilhes
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Bordeaux, Bordeaux, France
| | - Florence Biquard
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire d'Angers, Angers, France
| | - Nicolas Mottet
- Department of Obstetrics and Gynecology, Centre Hospitalo-Universitaire de Besançon, Université de Franche-Comté, Besançon, France
| | - Romain Favre
- Department of Obstetrics and Gynecology, Maternal Fetal Medicine, Hôpitaux universitaires de Strasbourg, Strasbourg, France
| | - Alexandra Benachi
- Department of Obstetrics and Gynecology and Reproductive Medicine, AP-HP, Antoine Béclère Hospital, University Paris Saclay, Clamart, France
| | - Nicolas Sananès
- Department of Obstetrics and Gynecology, Hôpitaux universitaires de Strasbourg, Strasbourg, France.,INSERM UMR-S 1121 "Biomatériaux et bioingénierie", Université de Strasbourg, Strasbourg, France
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Ali K, Dassios T, Khaliq SA, Williams EE, Tamura K, Davenport M, Greenough A. Outcomes of infants with congenital diaphragmatic hernia by side of defect in the FETO era. Pediatr Surg Int 2019; 35:743-747. [PMID: 31089883 DOI: 10.1007/s00383-019-04484-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/06/2019] [Indexed: 11/30/2022]
Abstract
PURPOSE To compare the outcomes of infants with a right (RCDH) versus a left-sided (LCDH) congenital diaphragmatic hernia (CDH) and whether these differed according to whether the infants had undergone fetoscopic tracheal occlusion (FETO). METHODS Demographics, the type of surgical repair, preoperative and postoperative courses and respiratory, gastrointestinal, surgical and skeletal morbidities at follow-up were compared between infants with a RCDH or LCDH. A sub-analysis was undertaken in those who had undergone FETO. RESULTS During the study period, there were 167 infants with a LCDH and 24 with a RCDH; 106 underwent FETO (15 RCDH). Overall, the need for inhaled nitric oxide (p = 0.036) was higher in the RCDH group and, at follow-up, infants with RCDH were more likely to have a hernia recurrence (p = 0.043), pectus deformity (p = 0.019), scoliosis (p = 0.029) and suffer chronic respiratory morbidity (p = 0.001). There were, however, no significant differences in short term or long term outcomes (hernia recurrence (p = 0.237), pectus deformity (p = 0.322), scoliosis (p = 0.0174) or chronic respiratory morbidity (p = 0.326)) between infants with a right or left sided CDH who had undergone FETO. CONCLUSION Overall, infants with a RCDH compared to those with a LCDH had greater long-term morbidity, but not if they had undergone FETO.
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Affiliation(s)
- Kamal Ali
- Neonatal Intensive Care Centre, 4th Floor Golden Jubilee Wing, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK
| | - Theodore Dassios
- Neonatal Intensive Care Centre, 4th Floor Golden Jubilee Wing, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK.,Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Syed Abdul Khaliq
- Neonatal Intensive Care Centre, 4th Floor Golden Jubilee Wing, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK
| | - Emma E Williams
- Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Kentaro Tamura
- Neonatal Intensive Care Centre, 4th Floor Golden Jubilee Wing, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK.,Division of Neonatology, Maternal and Perinatal Centre, Toyama University Hospital, Toyama, Japan
| | - Mark Davenport
- Department of Paediatric Surgery, King's College Hospital NHS Foundation Trust, London, UK
| | - Anne Greenough
- Neonatal Intensive Care Centre, 4th Floor Golden Jubilee Wing, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK. .,Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK. .,The Asthma UK Centre for Allergic Mechanisms of Asthma, King's College London, London, UK. .,NIHR Biomedical Centre at Guy's and St Thomas NHS Foundation Trust and King's College London, London, UK.
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5
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Montalva L, Lauriti G, Zani A. Congenital heart disease associated with congenital diaphragmatic hernia: A systematic review on incidence, prenatal diagnosis, management, and outcome. J Pediatr Surg 2019; 54:909-919. [PMID: 30826117 DOI: 10.1016/j.jpedsurg.2019.01.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 01/27/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the impact of congenital heart disease (CHD) on infants with congenital diaphragmatic hernia (CDH). METHODS Using a defined search strategy (PubMed, Cochrane, Embase, Web of Science MeSH headings), we searched studies reporting the incidence, management, and outcome of CDH infants born with associated CHD. RESULTS Of 6410 abstracts, 117 met criteria. Overall, out of 28,974 babies with CDH, 4427 (15%) had CHD, of which 42% were critical. CDH repair was performed in a lower proportion of infants with CHD (72%) than in those without (85%; p < 0.0001). Compared to CDH babies without CHD, those born with a cardiac lesion were more likely to have a patch repair (45% vs. 30%; p < 0.01) and less likely to undergo minimally invasive surgery (5% vs. 17%; p < 0.0001). CDH babies with CHD had a lower survival rate than those without CHD (52 vs. 73%; p < 0.001). Survival was even lower (32%) in babies with critical CHD. CONCLUSION CHD has a strong impact on the management and outcome of infants with CDH. The combination of CDH and CHD results in lower survival than those without CHD or an isolated cardiac defect. Further studies are needed to address some specific aspects of the management of this fragile CDH cohort. TYPE OF STUDY Systematic review and meta-analysis. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Louise Montalva
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, Canada; Department of Surgery, University of Toronto, Toronto, Canada
| | - Giuseppe Lauriti
- Department of Pediatric Surgery, "Spirito Santo" Hospital, Pescara, and "G. d'Annunzio" University, Chieti-Pescara, Italy
| | - Augusto Zani
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, Canada; Department of Surgery, University of Toronto, Toronto, Canada.
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6
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Abstract
We report a case of late presentation of congenital diaphragmatic hernia in a child who presented to the emergency department with abdominal pain and respiratory distress. The usual and unusual presentations of congenital diaphragmatic hernia in older children and their possible complications are discussed.
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7
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Inoue S, Odaka A, Muta Y, Beck Y, Sobajima H, Tamura M. Coexistence of congenital diaphragmatic hernia and abdominal wall closure defect with chromosomal abnormality: two case reports. J Med Case Rep 2016; 10:19. [PMID: 26800685 PMCID: PMC4724109 DOI: 10.1186/s13256-016-0805-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 01/06/2016] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND We reported two rare cases of congenital diaphragmatic hernia with abdominal wall closure defect, which were not associated with septum transversum diaphragmatic defects or Fryns syndrome. CASE PRESENTATION Case 1: a Japanese baby boy was delivered at 37 weeks' gestation by urgent cesarean section because of the diagnosis of severe fetal distress. Congenital diaphragmatic hernia with omphalocele was prenatally diagnosed with fetal ultrasound. A ruptured omphalocele was confirmed at delivery. A silo was established on the day of his birth; direct closure of his diaphragmatic defect and abdominal wall closure was performed on the fifth day after his birth. Trisomy 13 was confirmed by genetic examination. His postoperative course was uneventful and he was discharged 5 months postnatally with home oxygen therapy. He was readmitted because of heart failure and died at 6 months. Case 2: a Japanese baby boy, who was prenatally diagnosed with gastroschisis, was delivered at 35 weeks' gestation by urgent cesarean section because of the diagnosis of fetal distress. Silo construction using a wound retractor was performed on the day of his birth and direct abdominal closure was performed on the tenth day after his birth. Trisomy 21 was confirmed by genetic examination. Treatment for his respiratory distress was continued after surgery. A retrosternal hernia was revealed at 6 months and direct closure of retrosternal diaphragm with the resection of hernia sac was performed. His postoperative course was uneventful and he was discharged with home oxygen therapy. CONCLUSIONS Attention should be paid to chromosomal abnormality in cases in which the coexistence of congenital diaphragmatic hernia and abdominal wall closure defect are observed.
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Affiliation(s)
- Seiichiro Inoue
- Department of Hepato-Biliary-Pancreatic Surgery and Pediatric Surgery, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan.
| | - Akio Odaka
- Department of Hepato-Biliary-Pancreatic Surgery and Pediatric Surgery, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan
| | - Yuki Muta
- Department of Hepato-Biliary-Pancreatic Surgery and Pediatric Surgery, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan
| | - Yoshifumi Beck
- Department of Hepato-Biliary-Pancreatic Surgery and Pediatric Surgery, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan
| | - Hisanori Sobajima
- Department of Neonatology, Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan
| | - Masanori Tamura
- Department of Neonatology, Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe, Saitama, 3508550, Japan
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8
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Bojanić K, Pritišanac E, Luetić T, Vuković J, Sprung J, Weingarten TN, Schroeder DR, Grizelj R. Malformations associated with congenital diaphragmatic hernia: Impact on survival. J Pediatr Surg 2015; 50:1817-22. [PMID: 26259558 DOI: 10.1016/j.jpedsurg.2015.07.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/22/2015] [Accepted: 07/01/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND/PURPOSE Congenital diaphragmatic hernia (CDH) is associated with high mortality. Survival is influenced by the extent of pulmonary hypoplasia and additional congenital defects. The purpose of this study was to assess the association of congenital anomalies and admission capillary carbon dioxide levels (PcCO2), as a measure of extent of pulmonary hypoplasia, on survival in neonates with CDH. METHODS This is a retrospective review of neonates with CDH admitted to a tertiary neonatal intensive care unit between 1990 and 2014. Logistic regression was used to assess whether hospital survival was associated with admission PcCO2 or associated anomalies (isolated CDH, CDH with cardiovascular anomalies, and CDH with noncardiac anomalies). The probabilities of survival (POS) score, based on birth weight and 5-min Apgar as defined by the Congenital Diaphragmatic Hernia Study Group were included as a covariate. RESULTS Of 97 patients, 55 had additional malformations (cardiovascular n=12, noncardiac anomalies n=43). POS was lower in CDH with other anomalies compared to isolated CDH. Survival rate was 61.9%, 53.5% and 41.7% in isolated CDH, CDH with noncardiac anomalies and CDH with cardiovascular anomalies, respectively. After adjusting for POS score the likelihood of survival in CDH groups with additional anomalies was similar to isolated CDH (OR 0.95, 95% CI 0.22-4.15, and 1.10, 0.39-3.08, for CDH with and without cardiovascular anomalies, respectively). After adjusting for POS score, lower PcCO2 levels (OR=1.25 per 5mmHg decrease, P=0.003) were associated with better survival. CONCLUSIONS Neonates with CDH have a high prevalence of congenital malformations. However, after adjusting for POS score the presence of additional anomalies was not associated with survival. The POS score and admission PcCO2 were important prognosticating factors for survival.
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Affiliation(s)
- Katarina Bojanić
- Division of Neonatology, Department of Obstetrics and Gynecology, University Hospital Merkur, Zagreb, Croatia
| | - Ena Pritišanac
- Department of Pediatrics, University of Zagreb School of Medicine, University Hospital Centre, Zagreb, Croatia
| | - Tomislav Luetić
- Department of Pediatric Surgery, University of Zagreb School of Medicine, University Hospital Centre, Zagreb, Croatia
| | - Jurica Vuković
- Department of Pediatrics, University of Zagreb School of Medicine, University Hospital Centre, Zagreb, Croatia
| | - Juraj Sprung
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA.
| | | | - Darrell R Schroeder
- Department of Health Sciences Research, Division of Biostatistics, Mayo Clinic, Rochester, MN, USA
| | - Ruža Grizelj
- Department of Pediatrics, University of Zagreb School of Medicine, University Hospital Centre, Zagreb, Croatia
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9
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Hagadorn JI, Brownell EA, Herbst KW, Trzaski JM, Neff S, Campbell BT. Trends in treatment and in-hospital mortality for neonates with congenital diaphragmatic hernia. J Perinatol 2015; 35:748-54. [PMID: 25950919 DOI: 10.1038/jp.2015.46] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/14/2015] [Accepted: 03/04/2015] [Indexed: 01/05/2023]
Abstract
OBJECTIVE We performed a retrospective cohort study in order to examine recent trends in use of post-partum treatments and in-hospital mortality for congenital diaphragmatic hernia (CDH). STUDY DESIGN Included were infants with CDH, born in 2003 to 2012 and hospitalized at ⩽7 days of age at one of 33 United States tertiary referral children's hospitals with extracorporeal membrane oxygenation (ECMO) programs. In-hospital mortality as well as use of ECMO, surfactant and a variety of vasodilators were examined for trends during the study period. RESULT Inclusion criteria were met by 3123 infants with CDH. Among 2423 term or near-term infants, odds of death decreased annually for those with isolated or complex CDH. For 700 premature or low-birth weight infants with CDH, in-hospital mortality did not change. Among treatments for CDH, increasing with time in the study cohort were use of milrinone and sildenafil individually, and use of multiple vasodilators during the hospitalization. CONCLUSION Survival improved in large subgroups of term or near-term infants with CDH in this 10-year multicenter cohort, temporally associated with increasing use of multiple vasodilators. Use of vasodilators for infants with CDH is increasing despite a lack of evidence supporting efficacy or safety. Prospective research is needed to clarify specific causal effects contributing to improving survival in these infants.
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Affiliation(s)
- J I Hagadorn
- Division of Neonatology, Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT, USA
| | - E A Brownell
- Division of Neonatology, Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT, USA
| | - K W Herbst
- Departments of Pediatric Urology and Research, Connecticut Children's Medical Center, Hartford, CT, USA
| | - J M Trzaski
- Division of Neonatology, Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT, USA
| | - S Neff
- Departments of Pediatric Urology and Research, Connecticut Children's Medical Center, Hartford, CT, USA
| | - B T Campbell
- Department of Pediatric Surgery, Connecticut Children's Medical Center, Hartford, CT, USA
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10
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Williams RD, Katz MG, Fargnoli AS, Kendle AP, Mihalko KL, Bridges CR. Bochdalek Congenital Diaphragmatic Hernia in an Adult Sheep. Anat Histol Embryol 2015; 45:246-8. [PMID: 26293994 DOI: 10.1111/ahe.12200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 07/05/2015] [Indexed: 11/26/2022]
Abstract
Congenital diaphragmatic hernia (CDH) is a rare condition. The aetiology of CDH is often unclear. In our case, a hollow mass was noted on MRI. Cardiac ejection fraction was diminished (47.0%) compared to 60.5% (average of 10 other normal animals, P < 0.05). The final diagnosis of congenital diaphragmatic hernia (Bochdalek type) was made when the sheep underwent surgery. The hernia was right-sided and contained the abomasum. Lung biopsy demonstrated incomplete development with a low number of bronchopulmonary segments and vessels. The likely cause of this hernia was genetic malformation.
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Affiliation(s)
- R D Williams
- Sanger Heart & Vascular Institute, Carolinas HealthCare System, Charlotte, NC, USA
| | - M G Katz
- Sanger Heart & Vascular Institute, Carolinas HealthCare System, Charlotte, NC, USA
| | - A S Fargnoli
- Sanger Heart & Vascular Institute, Carolinas HealthCare System, Charlotte, NC, USA
| | - A P Kendle
- Sanger Heart & Vascular Institute, Carolinas HealthCare System, Charlotte, NC, USA
| | - K L Mihalko
- Cannon Research Center, Comparative Medicine, Carolinas HealthCare System, Charlotte, NC, USA
| | - C R Bridges
- Sanger Heart & Vascular Institute, Carolinas HealthCare System, Charlotte, NC, USA
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11
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Beaumier CK, Beres AL, Puligandla PS, Skarsgard ED. Clinical characteristics and outcomes of patients with right congenital diaphragmatic hernia: A population-based study. J Pediatr Surg 2015; 50:731-3. [PMID: 25783377 DOI: 10.1016/j.jpedsurg.2015.02.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/13/2015] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of this study was to compare RCDH to LCDH from the perspective of prenatal diagnosis, illness severity, treatment, and outcome. METHODS A retrospective study of all cases of CDH registered in the Canadian Pediatric Surgery Network (CAPSNet) database from 2005 to 2013 was conducted. Side of defect comparisons were made by prenatal diagnostic features, birth demographic data, intensity of medical treatment, timing and type of surgery, and outcomes. Outcomes prediction with logistic regression modeling using side of defect as an exploratory covariate was performed. RESULTS The study cohort included 498 patients, of which 84 (17%) cases had RCDH. Prenatal diagnosis was more commonly made for LCDH. No difference existed in perinatal risk factors (GA, illness severity (SNAP-II) score, associated anomalies), preoperative treatment intensity (use of vasodilators, inotropes), timing of surgery, ventilation days, need for ECMO, LOS, and overall survival. Significant differences between RCDH and LCDH were detected for patch repair rate (48.2% vs. 30.6%; p=0.036) and recurrence (4.1% vs. 0.6%; p=0.038). Stepwise regression modeling identified side of hernia as independently predictive of need for patch. CONCLUSIONS Overall, little difference exists between RCDH and LCDH in terms of prognostic factors and outcomes.
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Affiliation(s)
- Catherine K Beaumier
- Division of Pediatric Surgery, Department of Surgery, University of British Columbia, Vancouver, Canada
| | - Alana L Beres
- Department of Pediatric Surgery, McGill University, Montreal, Canada
| | | | - Erik D Skarsgard
- Division of Pediatric Surgery, Department of Surgery, University of British Columbia, Vancouver, Canada.
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Hidaka N, Ishii K, Mabuchi A, Yamashita A, Ota S, Sasahara J, Murata M, Mitsuda N. Associated anomalies in congenital diaphragmatic hernia: perinatal characteristics and impact on postnatal survival. J Perinat Med 2015; 43:245-52. [PMID: 25014517 DOI: 10.1515/jpm-2014-0110] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 06/11/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVE We aimed to investigate the clinical characteristics and postnatal outcomes of fetuses with congenital diaphragmatic hernia (CDH) and additional anomalies. MATERIALS AND METHODS We reviewed the charts of fetuses with CDH managed between 2005 and 2013. Patients were divided into complex and isolated groups based on the presence of additional anomalies. We analyzed the respective polyhydramnios, liver herniation, stomach position, lung to thorax transverse area ratio (LTR), and prognoses of the two groups. The survival rates of both groups were assessed based on the LTR as well as on stomach and liver positions. RESULTS CDH was diagnosed in 65 fetuses, and additional anomalies were found in 23. The incidences of liver herniation, polyhydramnios, and death were significantly higher, and LTR was significantly lower, in the complex group. The mortality rate of fetuses with a LTR <0.08 was lower than that of fetuses with a LTR of ≥0.08 in the complex group. Further, the survival rate of fetuses with intrathoracic liver was lower than those without liver herniation. CONCLUSIONS The prognosis of complex CDH is poor. This may result from both the associated anomalies and the severity of CDH itself. Even in complex CDHs, intrathoracic liver and LTR values are useful in estimating postnatal outcome.
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13
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Baerg J, Kanthimathinathan V, Gollin G. Late-presenting congenital diaphragmatic hernia: diagnostic pitfalls and outcome. Hernia 2012; 16:461-6. [PMID: 22395789 DOI: 10.1007/s10029-012-0906-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
Abstract
PURPOSE We sought to review the presentation, diagnosis, and outcome of a series of children with late-presenting, congenital diaphragmatic hernias (CDH). METHODS Bochdalek and Morgagni hernias that were diagnosed after 30 days of age, between January 1989 and December 2009, were reviewed retrospectively. A medical record review and telephone survey were conducted in 2010. RESULTS Thirty-one subjects, diagnosed with CDH between 45 days and 13 years of age (mean, 16 months), were reviewed. Bochdalek hernias were present in 18 (58%) and Morgagni hernias in 13 (42%). There were twenty (64%) left-sided, eight (26%) right-sided, and three (10%) bilateral CDH. Five (16%) had other congenital anomalies. Eight (25.8%), including a subject with strangulated intestine that required resection, were initially misdiagnosed, due mostly to failure to obtain or correctly interpret a chest radiograph. Thirty (97%) were repaired by an abdominal approach, including seven laparoscopic closures. Follow-up ranged from 1 to 20 years (median, 7 years). All subjects survived without recurrence. Unlike neonatally diagnosed CDH, neither right-sided hernia, patch repair, nor associated esophageal atresia predicted morbidity. CONCLUSION Although diagnostic delays may lead to morbidity, if late-presenting CDH are expeditiously identified and repaired, their outcome is very good, in contrast to those that present in neonates.
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Affiliation(s)
- J Baerg
- Loma Linda University Children's Hospital, 11175 Campus St., Loma Linda, CA 92354, USA.
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14
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Abstract
Congenital Diaphragmatic Hernia (CDH) is defined by the presence of an orifice in the diaphragm, more often left and posterolateral that permits the herniation of abdominal contents into the thorax. The lungs are hypoplastic and have abnormal vessels that cause respiratory insufficiency and persistent pulmonary hypertension with high mortality. About one third of cases have cardiovascular malformations and lesser proportions have skeletal, neural, genitourinary, gastrointestinal or other defects. CDH can be a component of Pallister-Killian, Fryns, Ghersoni-Baruch, WAGR, Denys-Drash, Brachman-De Lange, Donnai-Barrow or Wolf-Hirschhorn syndromes. Some chromosomal anomalies involve CDH as well. The incidence is < 5 in 10,000 live-births. The etiology is unknown although clinical, genetic and experimental evidence points to disturbances in the retinoid-signaling pathway during organogenesis. Antenatal diagnosis is often made and this allows prenatal management (open correction of the hernia in the past and reversible fetoscopic tracheal obstruction nowadays) that may be indicated in cases with severe lung hypoplasia and grim prognosis. Treatment after birth requires all the refinements of critical care including extracorporeal membrane oxygenation prior to surgical correction. The best hospital series report 80% survival but it remains around 50% in population-based studies. Chronic respiratory tract disease, neurodevelopmental problems, neurosensorial hearing loss and gastroesophageal reflux are common problems in survivors. Much more research on several aspects of this severe condition is warranted.
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15
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Labbé A, Coste K, Déchelotte PJ. [Congenital diaphragmatic hernia - mechanisms of pulmonary hypoplasia]. Rev Mal Respir 2011; 28:463-74. [PMID: 21549902 DOI: 10.1016/j.rmr.2010.10.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 10/04/2010] [Indexed: 11/26/2022]
Abstract
Congenital diaphragmatic hernia (CDH) is a common cause of severe neonatal respiratory distress. Mortality and morbidity are determined by the amount of pulmonary hypoplasia (PH) that occurs and by the development of therapy-resistant pulmonary hypertension. The pathogenesis and aetiology of CDH and its associated anomalies are still largely unknown despite all research efforts. The pathogenesis of CDH is based on an assumption linking herniation of abdominal viscera into the thorax with compression of the developing lung. PH, however, can also result from reduced distension of the developing lung secondary to impaired fetal breathing movements. Our understanding of CDH has also been aided by basic research with the use of dietary, teratogen-induced, and knockout models of CDH. These studies indicate that lung hypoplasia may involve disturbances of mitogenic signalling pathways fundamental to embryonic lung development. Recent data reveal the role of disruption of a retinoid-signalling pathway in the pathogenesis of CDH. Although multifactorial inheritance may best explain most cases of CDH in humans, much has been learned about the genetic factors that play a role in the development of CDH by studies of patients with CDH caused by specific genetic syndromes and chromosome anomalies. More research is warranted to improve our understanding of normal and abnormal lung development in relation to CDH. Such investigations will help in the design of new treatment strategies to improve the natural course or even to prevent this anomaly.
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Affiliation(s)
- A Labbé
- Unité de réanimation néonatale et pédiatrique, CHU d'Estaing, 1, place Lucie-Aubrac, 63003 Clermont-Ferrand, France.
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16
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Luks FI. New and/or improved aspects of fetal surgery. Prenat Diagn 2011; 31:252-8. [PMID: 21294135 DOI: 10.1002/pd.2706] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 12/10/2010] [Accepted: 12/20/2010] [Indexed: 11/11/2022]
Abstract
Open fetal surgery through a wide hysterotomy is no longer a real option for prenatal intervention, but a minimally invasive approach has emerged as treatment for a small number of indications. Endoscopic ablation of placental vessels is the preferred treatment for severe twin-to-twin transfusion syndrome and it may be the only chance to salvage the most severe forms of congenital diaphragmatic hernia. Several other indications are currently under review and may become justified in the future, provided that diagnostic accuracy and patient selection become more accurate. Before invasive fetal intervention becomes widely accepted, however, we need to better define outcome. It is no longer acceptable to express results in terms of survival at birth. Survival at discharge and long-term morbidity must be considered as well.
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Affiliation(s)
- François I Luks
- Division of Pediatric Surgery, Alpert Medical School of Brown University, Providence, RI, USA.
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17
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Daltro P, Werner H, Gasparetto TD, Domingues RC, Rodrigues L, Marchiori E, Gasparetto EL. Congenital chest malformations: a multimodality approach with emphasis on fetal MR imaging. Radiographics 2010; 30:385-95. [PMID: 20228324 DOI: 10.1148/rg.302095113] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Congenital chest malformations can range from small and asymptomatic entities to large space-occupying masses that require immediate surgical treatment. They may affect the foregut, pulmonary airway, and vasculature. Hybrid conditions are commonly seen, with interrelated chest malformations having various radiologic and pathologic features. An understanding of the in utero complications associated with fetal chest masses is essential for appropriate monitoring during pregnancy, treatment recommendations, and delivery management. Technologic advances have greatly improved the diagnosis of fetal anomalies. Congenital chest malformations are usually evaluated in the prenatal period with fetal sonography, but fetal magnetic resonance (MR) imaging is a well-established modality that is used as an adjunct technique in difficult diagnostic situations. MR imaging can provide excellent tissue contrast with more accurate analysis of the fetal anatomy and superior differentiation between the abnormalitites and adjacent structures, thereby allowing early planning of prenatal management.
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Affiliation(s)
- Pedro Daltro
- Clinica de DiagnOstico por Imagem, Av das Amé ricas 4666, Sala 325, Rio de Janeiro, RJ 22631004, Brazil
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Mullassery D, Ba'ath ME, Jesudason EC, Losty PD. Value of liver herniation in prediction of outcome in fetal congenital diaphragmatic hernia: a systematic review and meta-analysis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2010; 35:609-614. [PMID: 20178116 DOI: 10.1002/uog.7586] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVES Intrathoracic liver herniation (ILH) is being used to estimate prognosis and hence guide antenatal interventions in fetal congenital diaphragmatic hernia (CDH). However, the literature regarding its utility in this role is conflicting. This review systematically examines the currently available evidence of ILH use in fetal CDH. METHODS MEDLINE and EMBASE databases were searched for the terms ((congenital diaphragmatic hernia) OR CDH) AND liver. Inclusion criteria were human case series of fetuses diagnosed with CDH using either ultrasound or magnetic resonance imaging. Included studies were required to have reported the antenatal liver position and the outcome (survival or not). Case reports, reviews and eventration series were excluded. Studies reporting similar cases from the same center over an overlapping time period were considered duplicates; only the larger of the studies were therefore included. Absolute totals were extracted and sums calculated. Fisher's exact test (FET) was used to compare survival rates in different groups. RESULTS The original search retrieved 338 studies. Applying inclusion/exclusion criteria and removing duplicates left 21 case series in 20 studies. Retrieved studies differed in the definitions of liver herniation, survival and treatment modality. In total, there were 407 fetuses in the liver-up (herniated) and 303 in the liver-down (not herniated) groups. Survival rates were 45.4% and 73.9%, respectively. The difference was statistically significant (FET = 56.4, P < 0.005). Sensitivity analysis for cases that had only conventional postnatal treatment was still significant (FET = 52.8, P < 0.005). CONCLUSIONS Liver herniation is associated with poorer prognosis in fetal CDH. Grading liver herniation or using it as part of a panel of markers may enhance the value of liver herniation as a prognostic test in fetal CDH.
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Affiliation(s)
- D Mullassery
- Division of Child Health, University of Liverpool, Alder Hey Children's Hospital NHS Trust, Liverpool, UK.
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Chao PH, Huang CB, Liu CA, Chung MY, Chen CC, Chen FS, Ou-Yang MC, Huang HC. Congenital diaphragmatic hernia in the neonatal period: review of 21 years' experience. Pediatr Neonatol 2010; 51:97-102. [PMID: 20417460 DOI: 10.1016/s1875-9572(10)60018-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 06/04/2009] [Accepted: 07/02/2009] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Despite advances in therapeutic modalities, congenital diaphragmatic hernia (CDH) still accounts for significant neonatal mortality. This study aimed to describe the demographic features, clinical experiences of postnatal care, and differences between non-survivors and survivors with CDH. METHODS We retrospectively reviewed medical records of neonates with CDH admitted to Kaohsiung Chang Gung Memorial Hospital over a 21-year period. Neonates with diaphragmatic eventration and those transferred after surgery were excluded. RESULTS A total of 24 live-born neonates fulfilled the study criteria; 13 (54%) were boys and 11 (46%) were girls. Eight (33%) patients were prenatally diagnosed. The mean gestational age was 38.8 +/- 1.8 weeks (range, 35-41 weeks). Twenty-three (96%) had Bochdalek hernia [19 (83%) left-sided, 4 (17%) right-sided], and one (4%) had right-sided Morgagni hernia. Additional major congenital anomalies were identified in five patients (21%). The overall mortality was 21% (5/24); all deaths occurred before surgery. Statistically significant differences between survivors and non-survivors were found for right-sided CDH, low 1-minute and 5-minute Apgar scores, and low pH of the first arterial blood gas. Deaths were attributed to severe persistent pulmonary hypertension, unresponsiveness to aggressive resuscitation at birth, and major associated malformations. CONCLUSION Seventy-nine percent of our CDH patients survived to hospital discharge. Resuscitation by a skilled neonatology team to prevent low Apgar scores and low pH, careful evaluation of other anomalies, and overcoming pulmonary hypertension might improve the survival rate. Recognizing unfavorable factors in CDH may help clinicians manage the critical care of these babies.
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Affiliation(s)
- Pei-Hsin Chao
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
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20
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Management of pulmonary hypertension in congenital diaphragmatic hernia: nitric oxide with prostaglandin-E1 versus nitric oxide alone. Pediatr Surg Int 2008; 24:1101-4. [PMID: 18726605 DOI: 10.1007/s00383-008-2225-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIM Prostaglandin-E1 (PGE1) is used at most centers for treating pulmonary hypertension (PH) in congenital diaphragmatic hernia (CDH) because it has been regarded as effective. The aim of this study was to investigate the role of PGE1 for treating PH in CDH. METHODS We reviewed 49 CDH cases with echocardiography-proven PH. PH was treated with PGE1 and nitric oxide (NO) and high frequency oscillatory ventilation (HFOV) from 1997 to 2001 (PG + NO; n = 19) and with NO and HFOV from 2002 to 2007 (NO; n = 30). RESULTS Subject demographics, severity of PH, and presence of other anomalies were not significantly different between the two groups. In the PG + NO group, 12/19 (63.2%) survived (PG + NO-s) and 7/19 (36.8%) died (PG + NO-d). In the NO group, 21/30 (70.0%) survived (NO-s) and 9/30 (30.0%) died (NO-d). Survival rates were not significantly different. In the NO-s group, spontaneous closure of the ductus arteriosus (DA) was significantly earlier compared with the PG + NO-s group (P < 0.01; 4.0 +/- 0.9 vs. 9.5 +/- 2.2 days after birth). DA diameters were significantly larger in groups that died compared with groups that survived (P < 0.01), and PH persisted in groups that died. In the NO-s group, surgery was possible significantly earlier compared with the PG + NO-s group (P < 0.01; 3.75 +/- 0.67 vs. 6.12 +/- 0.78 days after birth). No NO-s case developed a PH crisis even though PGE1 was not used. Hospital stay was significantly shorter in the NO-s group compared with the PG + NO-s group (P < 0.05; 39.9 +/- 19 vs. 53.2 +/- 23 days). CONCLUSION Nitric oxide alone would appear to simplify the management of CDH with PH and provide better outcome.
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21
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Gudbjartsson T, Gunnarsdottir A, Topan CZ, Larssons LT, Rosmundsson T, Dagbjartsson A. Congenital diaphragmatic hernia: improved surgical results should influence abortion decision making. Scand J Surg 2008; 97:71-6. [PMID: 18450209 DOI: 10.1177/145749690809700110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIMS To compare surgical results for congenital diaphragmatic hernia (CDH) in two Scandinavian university hospitals and to evaluate the effects of abortions on the clinical profile of CDH in Iceland. METHODS A retrospective study including all CDH-cases in Iceland 1983-2002 and children referred to Lund University Hospital 1993-2002. Aborted fetuses with CDH from a nation-wide Icelandic abort-registry were also included. RESULTS In Iceland, 19 out of 23 children with CDH were diagnosed < 24 hours from delivery, one with associated anomalies. Eight fetuses were diagnosed prenatally and seven of them aborted, three having isolated CDH at autopsy. In Iceland, 15 of 18 children operated on survived surgery (83% operative survival). In Lund 28 children were treated with surgery, 23 of them diagnosed early after birth or prenatally. Four children did not survive surgery (86% operative survival) and 9 (31%) had associated anomalies. All the discharged children treated in Iceland and Lund are alive, 3-22 years postoperatively. CONCLUSION CDH is a serious anomaly where morbidity and mortality is directly related to other associated anomalies and pulmonary hypoplasia. However, majority of CDH patients do not have other associated anomalies. In spite of improved surgical results (operative mortality < 20%), a large proportion of pregnancies complicated with CDH are terminated. We conclude that the improved survival rate after corrective surgery must be emphasized when giving information to parents regarding abortion of fetuses with a prenatally diagnosed CDH.
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Affiliation(s)
- T Gudbjartsson
- Department of Cardiothoracic surgery, Landspitali University Hospital, Reykjavik, Iceland.
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22
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Fisher JC, Jefferson RA, Arkovitz MS, Stolar CJH. Redefining outcomes in right congenital diaphragmatic hernia. J Pediatr Surg 2008; 43:373-9. [PMID: 18280293 DOI: 10.1016/j.jpedsurg.2007.10.049] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Accepted: 10/09/2007] [Indexed: 01/18/2023]
Abstract
PURPOSE Available data comparing the management and outcome of right-sided (R-CDH) vs left-sided congenital diaphragmatic hernia (L-CDH) are inconsistent. Large-volume CDH studies are limited by small numbers of R-CDH or are confounded by compilations from multiple institutions with multiple treatment strategies. Consequently, they are underpowered to draw conclusions. To define the behavior and outcomes of R-CDH better, we report the largest single-institution series of R-CDH and ask if factors traditionally linked to poor prognosis in L-CDH were applicable to R-CDH. METHODS We reviewed a single institution's experience with 267 consecutive evaluable neonates with unilateral CDH repaired from 1990 to 2006, with specific focus on R-CDH. chi(2) tests were performed for disease-related categorical variables. Two-tailed unpaired t tests were used for continuous variables. Factors associated with morbidity and survival were determined by univariate regression. Statistical significance was set at P < .05. RESULTS Forty right-sided (15%) and 227 (85%) left-sided cases of CDH were identified. Prenatal diagnosis was made in 20 right-sided vs 170 left-sided defects (50% vs 75%, P < .01). Survival was 22 of 40 in R-CDH compared with 175 of 227 in L-CDH (55% vs 77%, P < .01). Extracorporeal membrane oxygenation was required in 16 right-sided and 33 left-sided cases (40% vs 15%, P < .001). A diaphragmatic patch was used in 22 of 29 right-sided compared with 82 of 199 left-sided repairs (76% vs 41%, P < .01); rates of abdominal wall prosthesis were also higher in right-sided hernias (38% vs 19%, P < .05). No differences were detected in right-sided vs left-sided recurrences (14% vs 8%, P = .38), mean time from birth to operation (5.3 vs 4.8 days, P = .80), or presence of cardiac anomalies (15% vs 12%, P = .63). Morbidity persisting beyond 6 months of age was present in 16 of 22 R-CDH survivors compared with 76 of 175 L-CDH survivors (73% vs 43%, P > .05). Among R-CDHs, prenatal diagnosis was the only factor to predict survival by univariate regression (P < .01). Use of a prosthesis in the diaphragm (P < .05) for R-CDH repair correlated with morbidity. CONCLUSION Although previous reports suggest that associated anomalies, need for extracorporeal membrane oxygenation, and time to repair can influence L-CDH survival, these data do not support extrapolation to R-CDH survival. Right-sided CDH carries a disproportionately high morbidity and mortality. Prenatal diagnosis was the only factor predictive of R-CDH survival. Morbidity may correlate with use of prosthetic material for R-CDH repair. Right-sided CDH is a unique disease that may require a modified antenatal consultation.
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Affiliation(s)
- Jason C Fisher
- Division of Pediatric Surgery, Columbia University College of Physicians and Surgeons New York, NY 10032, USA.
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Kim DH, Park JD, Kim HS, Shim SY, Kim EK, Kim BI, Choi JH, Park GW. Survival rate changes in neonates with congenital diaphragmatic hernia and its contributing factors. J Korean Med Sci 2007; 22:687-92. [PMID: 17728511 PMCID: PMC2693821 DOI: 10.3346/jkms.2007.22.4.687] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The purpose of this study was to demonstrate survival rate changes after the introduction of inhaled nitric oxide (iNO) therapy, and to identify the factors that influence these changes in neonates with a congenital diaphragmatic hernia (CDH) at a single center. A total of 48 neonates were divided into two groups based on the time of admission, i.e., into period I (P1; n=17; before the introduction of iNO therapy) and period II (P2; n=31; after the introduction of iNO therapy). Survival rates of the 48 neonates showed a tendency to increase from 53% during P1 to 77% during P2, but without a statistical significance, but a significant difference was found between survival rates during the two periods after adjusting for initial clinical characteristics, when the postoperative survival rate increased significantly from 69% for P1 to 100% for P2. The mean duration of preoperative respiratory management was significantly longer for P2 than for P1. Seven of 12 patients who received preoperative iNO therapy due to persistent pulmonary hypertension or refractory preductal hypoxemia in P2 survived after operation. We speculate that a management strategy based on iNO therapy and delayed operation, rather than differences between the initial clinical characteristics of the two study groups, might partially contribute to the observed improvements in postoperative and overall survival rates in neonates with CDH.
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Affiliation(s)
- Do-Hyun Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - June Dong Park
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Han-Suk Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - So-Yeon Shim
- Department of Pediatrics, Gachon University of Medicine and Science, Incheon, Korea
| | - Ee-Kyung Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Beyong Il Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Jung-Hwan Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Gui Won Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
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Slavotinek AM. Single gene disorders associated with congenital diaphragmatic hernia. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2007; 145C:172-83. [PMID: 17436300 DOI: 10.1002/ajmg.c.30125] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Congenital diaphragmatic hernia (CDH) is a common birth defect with a high pre- and postnatal mortality. Although the majority of diaphragmatic hernias occur as isolated malformations, additional major and minor anomalies are common and are present in more than 40% of patients. There are compelling data for the importance of genetic factors in the etiology of CDH, but the pathogenesis and the causative genes for CDH in humans remain elusive. There are more than 70 syndromes in which diaphragmatic hernias have been described, and several of these syndromes are single gene disorders for which the gene is known. One method for identifying the causative genes in isolated CDH is to study syndromes with known genes in which CDH is a recognized feature, with the rationale that those genes have a role in diaphragm development. This review discusses the syndromes that are most commonly associated with CDH, with greater attention towards syndromes in which the causative genes have been identified, including Simpson-Golabi-Behmel syndrome, Denys-Drash syndrome, spondylocostal dysostosis, craniofrontonasal syndrome, Cornelia de Lange syndrome and Marfan syndrome.
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Affiliation(s)
- Anne M Slavotinek
- Department of Pediatrics, University of California, San Francisco, CA 94143-0748, USA.
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25
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Jeanty C, Nien JK, Espinoza J, Kusanovic JP, Gonçalves LF, Qureshi F, Jacques S, Lee W, Romero R. Pleural and pericardial effusion: a potential ultrasonographic marker for the prenatal differential diagnosis between congenital diaphragmatic eventration and congenital diaphragmatic hernia. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2007; 29:378-87. [PMID: 17366518 PMCID: PMC2391071 DOI: 10.1002/uog.3958] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVES To determine whether or not the presence of pleural and/or pericardial effusion can be used prenatally as an ultrasonographic marker for the differential diagnosis between diaphragmatic eventration and diaphragmatic hernia. METHODS We present two case reports of non-isolated diaphragmatic eventration associated with pleural and/or pericardial effusion. Additionally, we reviewed the literature for all cases of congenital diaphragmatic hernia (CDH) and diaphragmatic eventration that met the following criteria: (1) prenatal diagnosis of a diaphragmatic defect and (2) definitive diagnosis by autopsy or surgery. The frequencies of pleural effusion, pericardial effusion and hydrops were compared between the two conditions using Fisher's exact test. A subanalysis was conducted of cases with isolated diaphragmatic defects (i.e. diaphragmatic defects not associated with hydrops and other major structural or chromosomal anomalies). RESULTS A higher proportion of fetuses with diaphragmatic eventration had associated pleural and pericardial effusions compared with fetuses with diaphragmatic hernia (58% (7/12) vs. 3.7% (14/382), respectively, P < 0.001). This observation remained true when only cases of diaphragmatic defects not associated with hydrops and other major structural or chromosomal anomalies were compared (29% (2/7) with eventration vs. 2.2% (4/178) with CDH, P < 0.02). CONCLUSIONS The presence of pleural and/or pericardial effusion in patients with diaphragmatic defects should raise the possibility of a congenital diaphragmatic eventration. This information is clinically important for management and counseling because the prognosis and treatment for CDH and congenital diaphragmatic eventration are different. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- C Jeanty
- Perinatology Research Branch, National Institute of Child Health and Human Development, NIH/DHHS, Bethesda, MD, USA
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Abstract
BACKGROUND Prenatal diagnosis and outcome of right congenital diaphragmatic hernia (RCDH) are far less well known than the more common left CDH (LCDH). In addition, onset of RCDH beyond the neonatal period with a spectrum of atypical symptoms is not unusual. A retrospective analysis of RCDH treated at a single center over 18 years has been reviewed with regard to outcome after the introduction of a new treatment protocol for CDH. METHODS All charts of patients with CDH between 1987 and 2004 were reviewed. Twenty-nine patients with RCDH were identified. The patients were divided into 2 historical groups: group 1, from 1987 to 1998 (16 patients), and group 2, from 1999 to 2004 (13 patients). From 1999, at the Department of Pediatric Surgery of Padua, the management of a baby born with CDH has been standardized and includes planned delivery at term, high-frequency oscillatory ventilation since birth, inhaled nitric oxide if required, extracorporeal membrane oxygenation as a "last resort," and delayed repair once the infant is hemodynamically stable. Patients with either prenatal diagnosis of RCDH or early onset of symptoms (<6 hours of life) were considered "high risk," and those with late onset (>6 hours) were considered "low risk." RESULTS Of 29 patients, prenatal diagnosis was available in 8 (27.5%) and major associated malformations in 8 patients (27.5%). Eight (50%) of 16 cases from group 1 and 9 (69.2%) of 13 cases from group 2 were high-risk patients. There was a trend in favor of a higher survival among high-risk patients from group 2 (25% vs 44%), although this was not statistically significant. As expected, all low-risk patients survived (P = .0001). Plain thorax x-ray was diagnostic in 23 (82.1%) cases, initially normal in 3, not performed in 1, and misinterpreted as right lower lobe pneumonia in 2. At operation, the prosthetic patch was required in 2 (9%) of 22 cases and the peritoneal sac was found in 4 (13.7%). CONCLUSIONS (1) The rate of prenatal diagnosis of RCDH was low and remained stable throughout the examined period. (2) The introduction of a treatment protocol, using high-frequency oscillatory ventilation since birth, improved the survival of high-risk patients with RCDH, although the data did not reach statistical significance. (3) The majority (75%) of low-risk patients presented beyond the first week of life with a variety of aspecific gastrointestinal or respiratory symptoms that accounted for initial misdiagnosis. (4) Even in these cases, the outcome was excellent.
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Affiliation(s)
- Paola Midrio
- Department of Pediatric Surgery, University of Padua, 35121 Padua, Italy.
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Grethel EJ, Farrell J, Ball R, Lee H, Nobuhara KK. Congenital Diaphragmatic Hernia Associated With Spinal Anomalies. Obstet Gynecol 2007; 109:485-8. [PMID: 17267867 DOI: 10.1097/01.aog.0000254174.25795.d6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Increased mortality is seen in patients with congenital diaphragmatic hernia who have associated anomalies, such as cardiac defects. We reviewed our series of patients with congenital diaphragmatic hernia and spinal anomalies to evaluate if their prognosis was altered. METHODS We examined our institutional database from August 1995 to August 2005, examining 679 cases of congenital diaphragmatic hernia, identifying all fetuses and newborns with congenital diaphragmatic hernia and spinal anomalies. Patients who had both congenital diaphragmatic hernia and spinal anomalies were identified by prenatal ultrasound reports, postnatal radiographs, operative notes, and pathology reports. RESULTS Seven patients were identified in the fetal or neonatal period with concomitant diagnoses of congenital diaphragmatic hernia and spinal anomalies. All patients had normal karyotype analysis. Six of these patients had both defects diagnosed using prenatal ultrasonography. All patients died before hospital discharge. CONCLUSION Although the numbers are limited in our series, patients with congenital diaphragmatic hernia and spinal anomalies have a dismal prognosis. This finding has significant implications for prenatal counseling. LEVEL OF EVIDENCE III.
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MESH Headings
- Abnormalities, Multiple/diagnosis
- Abnormalities, Multiple/diagnostic imaging
- Abnormalities, Multiple/epidemiology
- Abnormalities, Multiple/etiology
- Adult
- California/epidemiology
- Female
- Hernia, Diaphragmatic/diagnosis
- Hernia, Diaphragmatic/diagnostic imaging
- Hernia, Diaphragmatic/epidemiology
- Hernia, Diaphragmatic/etiology
- Hernias, Diaphragmatic, Congenital
- Humans
- Infant, Newborn
- Medical Records
- Pregnancy
- Pregnancy Trimester, Second
- Pregnancy Trimester, Third
- Prenatal Diagnosis
- Retrospective Studies
- Spinal Cord/abnormalities
- Spinal Cord/diagnostic imaging
- Ultrasonography
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Affiliation(s)
- Erich J Grethel
- Fetal Treatment Center, Division of Pediatric Surgery, University of California, San Francisco, San Francisco, California 94143-0570, USA.
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Slavotinek AM, Warmerdam B, Lin AE, Shaw GM. Population-based analysis of left- and right-sided diaphragmatic hernias demonstrates different frequencies of selected additional anomalies. Am J Med Genet A 2007; 143A:3127-36. [DOI: 10.1002/ajmg.a.32100] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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29
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Abstract
Congenital diaphragmatic hernia (CDH) affects 1 in every 2,000 to 4,000 live births. Many infants with this condition are diagnosed antenatally through routine ultrasound screening. Nearly 90 percent present at delivery with severe respiratory distress requiring intubation. Many of these infants develop persistent pulmonary hypertension of the newborn due to hypoplasia of the affected lung. The survival of infants with CDH is limited by the degree of pulmonary hypoplasia and requires sophisticated medical technology such as high-frequency ventilation and inhaled nitric oxide. Some infants also require treatment with extracoporeal membrane oxygenation. This article gives details of two cases of CDH in which the presentation was atypical. The more subtle presentation is discussed, as well as the embryology and pathophysiology of CDH and the possibility of associated anomalies. Clinical management and impact on the family are outlined.
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MESH Headings
- Extracorporeal Membrane Oxygenation
- Hernia, Diaphragmatic/diagnosis
- Hernia, Diaphragmatic/epidemiology
- Hernia, Diaphragmatic/therapy
- Hernias, Diaphragmatic, Congenital
- High-Frequency Jet Ventilation
- Humans
- Infant Mortality
- Infant, Newborn
- Intensive Care, Neonatal/methods
- Intubation, Intratracheal
- Morbidity
- Neonatal Nursing/organization & administration
- Neonatal Screening
- Nurse's Role
- Nursing Assessment
- Parents/education
- Parents/psychology
- Persistent Fetal Circulation Syndrome/etiology
- Professional-Family Relations
- Respiratory Distress Syndrome, Newborn/etiology
- Survival Rate
- Ultrasonography, Prenatal/methods
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Affiliation(s)
- Barbara Puckett
- Saskatoon District Health, Royal University Hospital, Canada.
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Harmath A, Hajdú J, Csaba A, Hauzman E, Pete B, Görbe E, Beke A, Papp Z. Associated malformations in congenital diaphragmatic hernia cases in the last 15 years in a tertiary referral institute. Am J Med Genet A 2006; 140:2298-304. [PMID: 17036345 DOI: 10.1002/ajmg.a.31470] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This is a review of cases of perinatally diagnosed congenital diaphragmatic hernia (CDH) with associated malformations with regard to time of diagnosis, side of hernia, associated malformations, and outcome. The authors analyzed the data of CDH cases with associated malformations from records of the I. Department of Obstetrics and Gynecology, Semmelweis University Faculty of Medicine, Budapest, between July 1, 1990 and June 30, 2005. The observed period was analyzed in two parts. The pre- and postnatal examinations verified CDH in 100 cases, 71% of which were associated with other malformations. In 52% (37/71) CDH was diagnosed before the 24th week of gestation. The rate of early diagnosed cases doubled in the second period. Ten percent (7/71) of cases were verified postnatally. Between 1990 and 1997, the percentage of right-sided hernia was 6% (2/34) while in the second period it was 19% (7/37). The association with cardiovascular, chest, and craniofacial anomalies doubled in the second period, while association of central nervous system anomalies halved. Chromosome anomalies were verified in four cases. Pregnancy was terminated in 53% (34/64) and 13% (4/30) of newborn infants survived the perinatal period. Intrauterine or intrapartum death occurred in 8% (5/64) of cases. The prevalence of cardiovascular, pulmonary, and craniofacial anomalies doubled, while that of central nervous system malformations decreased. The prevalence of other associated malformations has not changed significantly between the two periods. The improvement of technical facilities and accumulated experience make it possible to identify a higher number of associated malformations before the 24th week of gestation.
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Affiliation(s)
- Agnes Harmath
- Department of Obstetrics and Gynecology, Semmelweis University Faculty of Medicine, Budapest, Hungary.
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31
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Kilian AK, Büsing KA, Schaible T, Neff KW. [Fetal magnetic resonance imaging. Diagnostics in congenital diaphragmatic hernia]. Radiologe 2005; 46:128-32. [PMID: 16362378 DOI: 10.1007/s00117-005-1319-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Ultrasonography is the primary imaging modality for the evaluation of fetal or maternal anomalies. This method is safe, relatively inexpensive, easily accessible, and allows real-time imaging. Continuous technical improvements in ultrasonography in the last 10-15 years have led to improved diagnostic accuracy for fetal malformations. In cases of complex anomalies magnetic resonance imaging (MRI) can provide additional information. MRI has evolved as a valuable diagnostic method for evaluating fetal pathology. Particularly with regard to similarity of liver and lung parenchyma in ultrasonography, diagnosis of congenital diaphragmatic hernia (CDH) can be difficult. Beside morphological aspects, e.g., herniation of abdominal contents into the chest, small amounts of compressed lung can be visualized on MRI. The feasibility of using volumetric measurement on MRI may be helpful to predict high-risk fetuses and facilitate decisions to assure adequate prenatal and postnatal management to improve postnatal outcome.
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Affiliation(s)
- A K Kilian
- Institut für Klinische Radiologie, Universitätsklinikum Mannheim, Fakultät für Klinische Medizin der Universität Heidelberg.
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32
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Abstract
Congenital diaphragmatic hernia (CDH) is a common birth defect with a high mortality and morbidity. A clear understanding of the pathogenesis of CDH is critical for determining prognosis and planning treatment, but to date, information on the genetic etiology of both nonsyndromic and syndromic CDH is limited. This paper summarizes the current knowledge concerning the genes, syndromes, and chromosome aberrations associated with CDH in humans and in animal model systems. Mutations in several different genes have been described in syndromic CDH, but there is only one mutation that has been reported in non-syndromic CDH to date. However, animal models suggest that genes involved in cell migration, myogenesis, and connective tissue formation are critical to normal diaphragm formation, and these data provide a starting point for the search for other genes involved in the pathogenesis of CDH.
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Affiliation(s)
- Anne M Slavotinek
- Department of Pediatrics, University of California, San Francisco, CA 94143-0748, USA.
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33
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Current awareness in prenatal diagnosis. Prenat Diagn 2004. [DOI: 10.1002/pd.782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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