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1.
West Afr J Med ; 41(7): 831-835, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39357067

RESUMO

A 30-year-old G4P1+2(1 alive) woman with a history of cervical incompetence initially presented at a gestational age (GA) of 10 weeks and 6 days with lower abdominal pain and was managed conservatively as a case of threatened miscarriage. She re-presented two weeks later and was admitted on account of lower abdominal pain and spotting per vagina of 4hrs duration. An obstetric ultrasound revealed an intrauterine pregnancy invading the posterior myometrium with thinning of the uterine wall and hemoperitoneum. She subsequently had an exploratory laparotomy, evacuation of the hemoperitoneum, separation of the fetus from the myometrium, and repair with no. 2 vicryl suture. The patient recovered satisfactorily and had two units of whole blood transfused. She was managed with analgesics, hematinics and broad-spectrum antibiotics. She was discharged on the 4th post-operative day to be followed up at the gynaecological clinic.


CONTEXTE: Une femme de 30 ans, G4P1+2(1 vivant) avec des antécédents d'incompétence cervicale, s'est initialement présentée à un âge gestationnel (AG) de 10 semaines et 6 jours avec des douleurs abdominales basses et a été prise en charge de manière conservatrice pour une menace de fausse couche. Elle s'est à nouveau présentée deux semaines plus tard et a été admise en raison de douleurs abdominales basses et de saignements vaginaux depuis 4 heures. Une échographie obstétricale a révélé une grossesse intra-utérine envahissant le myomètre postérieur avec amincissement de la paroi utérine et hémopéritoine. Elle a ensuite subi une laparotomie exploratrice, une évacuation de l'hémopéritoine, une séparation dufœtus du myomètre, et une réparation avec un fil de suture vicryl n° 2. La patiente a récupéré de manière satisfaisante et a reçu deux unités de sang total en transfusion. Elle a été prise en charge avec des analgésiques, des hématiniques et des antibiotiques à large spectre. Elle a été autorisée à sortir le 4ème jour post-opératoire avec un suivi prévu à la clinique gynécologique. MOTS-CLÉS: Grossesse intramurale, Dilemme, Pratique à ressources limitées.


Assuntos
Hemoperitônio , Humanos , Feminino , Gravidez , Adulto , Hemoperitônio/diagnóstico , Hemoperitônio/etiologia , Gravidez Ectópica/diagnóstico , Dor Abdominal/etiologia , Laparotomia/métodos , Ameaça de Aborto/diagnóstico , Ultrassonografia Pré-Natal/métodos
2.
Ultrasound Obstet Gynecol ; 64(4): 559-560, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39352868
4.
Sci Rep ; 14(1): 22821, 2024 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-39354020

RESUMO

This research aimed to assess the validity of ultrasound scans with new features in detecting fetal anal atresia and verify the effectiveness of these new features. Additionally, we aimed at investigating the perinatal incidence of anal atresia. This multicenter prospective study recruited 94,617 normal gravidas and 84 gravidas with anal atresia fetuses. The gold standard for diagnosing perinatal anal atresia is routine neonatal anus examinations. The incidence calculation was based on the results of the gold standard. The validity of our new approach was evaluated via a diagnostic test involving all 94,701 subjects. The effectiveness of our new features was assessed through an ablation study in a randomly established new dataset, with the ratio of anal atresia to non-anal atresia cases of 1:4. The annual perinatal incidence of anal atresia between 2019 and 2023 ranges from 0.57‰ to 1.29‰. Our new method performed great regarding the Youden index, diagnostic odds ratio (DOR), area under the curve (AUC) of the receiver operating characteristic curve (ROCC), AUC of the precision-recall curve (PRC), F1-score, and Cramer's V. In the ablation study, our new approach surpassed its competitors concerning Youden index, DOR, AUC of the ROCC, and AUC of the PRC. Ultrasound scans show high validity and clinical value in detecting fetal anal atresia. Our new ultrasound features significantly promote the detection of fetal anal atresia.


Assuntos
Anus Imperfurado , Ultrassonografia Pré-Natal , Humanos , Feminino , Estudos Prospectivos , Ultrassonografia Pré-Natal/métodos , Gravidez , Anus Imperfurado/diagnóstico por imagem , Curva ROC , Adulto , Recém-Nascido , Incidência
5.
BMC Pregnancy Childbirth ; 24(1): 644, 2024 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-39363278

RESUMO

BACKGROUND: Amniotic Band Syndrome (ABS) is a rare congenital condition characterized by the formation of fibrous bands within the amniotic sac that can entangle and restrict fetal development, leading to various deformities. In this report, we present an unprecedented case of fetal amniotic band ingestion in a monochorionic diamniotic (MCDA) twin pregnancy. Reporting this case is essential for expanding the understanding of the diverse presentations of amniotic bands, considering this rare entity in the differential diagnosis of prenatal ultrasound findings, and emphasizing the importance of vigilant prenatal monitoring and individualized management strategies. CASE PRESENTATION: A 35-year-old gravida 2, para 1 woman with an MCDA twin pregnancy experienced an uneventful pregnancy until the 33rd week, when routine ultrasonography revealed mild intrauterine growth restriction in both twins. At 35 weeks and 5 days gestation, the patient presented with mild abdominal pain. An emergency ultrasound revealed that Twin A ingested an amniotic band. Despite the absence of overt fetal distress, a comprehensive risk assessment was conducted, taking into account potential complications, such as airway obstruction and gastrointestinal issues due to prolonged amniotic band ingestion. Considering the risks versus the benefits of continued gestation and the near-term status, an emergency cesarean section was performed. The procedure resulted in the successful delivery of both twins with satisfactory Apgar scores. A 9-cm fibrous strand was promptly extracted from Twin A's oral cavity after delivery, confirming prenatal diagnosis. Both neonates underwent thorough examinations, revealing no additional anomalies, and demonstrated normal development during the nine-month follow-up. CONCLUSION: This case highlights the inherent challenges in diagnosing and managing the rare presentations of amniotic band-related complications, particularly in MCDA twin pregnancies. The instance of fetal amniotic band ingestion underscores the vital role of comprehensive prenatal imaging in ensuring accurate diagnosis and tailoring individualized risk assessments throughout the pregnancy in such rare and complex situations.


Assuntos
Síndrome de Bandas Amnióticas , Cesárea , Gravidez de Gêmeos , Ultrassonografia Pré-Natal , Humanos , Feminino , Gravidez , Ultrassonografia Pré-Natal/métodos , Adulto , Síndrome de Bandas Amnióticas/diagnóstico por imagem , Gêmeos Monozigóticos , Recém-Nascido
6.
Pathologica ; 116(4): 258-266, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39377509

RESUMO

Chorioangiomas are benign angiomas arising from chorionic tissue and they are the most common non-trophoblastic tumors of the placenta, as they are observed in 1% of all placentas examined. Most chorioangiomas are small and asymptomatic, often undetected during a prenatal ultrasound, and their clinical significance is still unknown. Large chorioangiomas, measuring more than 4-5 cm in diameter, can usually be detected prenatally by gray-scale or color Doppler sonography, and may be associated with maternal or fetal complications, such as preeclampsia, maternal mirror syndrome, preterm delivery, nonimmune fetal hydrops, fetal growth restriction and fetal demise. We herein describe the clinical-pathological features of a monocentric series of 30 placental chorioangiomas and discuss their clinical-pathological features and possible molecular mechanisms underlying their development.


Assuntos
Hemangioma , Doenças Placentárias , Placenta , Humanos , Feminino , Gravidez , Hemangioma/patologia , Hemangioma/diagnóstico por imagem , Hemangioma/diagnóstico , Adulto , Doenças Placentárias/patologia , Doenças Placentárias/diagnóstico , Doenças Placentárias/diagnóstico por imagem , Placenta/patologia , Placenta/diagnóstico por imagem , Complicações Neoplásicas na Gravidez/patologia , Complicações Neoplásicas na Gravidez/diagnóstico por imagem , Adulto Jovem , Ultrassonografia Pré-Natal
7.
BMJ Case Rep ; 17(10)2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39353673

RESUMO

Hydrops fetalis is an abnormal accumulation of fluid in two or more foetal compartments which is easily detected using prenatal ultrasonography. It can be categorised into immune and non-immune. The non-immune hydrops can result from various aetiologies, including cardiovascular, respiratory, genitourinary infections, chromosomal anomalies and metabolic causes. The metabolic causes, including lysosomal storage disorders (LSD), are increasingly being recognised as the causes of non-immune hydrops. The hydrops fetalis associated with metabolic disorders is usually severe with huge ascites, hepatosplenomegaly, thick skin, renal abnormalities, increased nuchal translucency, renal abnormalities and skeletal deformities. In this report, we describe a case of LSD, that is, galactosialidosis presenting as non-immune hydrops and its diagnosis. In utero diagnosis of the disorder without an index case is challenging. The definitive diagnosis is important for planning and management of future conceptions.


Assuntos
Hidropisia Fetal , Ultrassonografia Pré-Natal , Humanos , Hidropisia Fetal/diagnóstico , Hidropisia Fetal/etiologia , Feminino , Gravidez , Adulto , Mucolipidoses/diagnóstico , Mucolipidoses/complicações , Doenças por Armazenamento dos Lisossomos/diagnóstico , Diagnóstico Diferencial
8.
J Obstet Gynaecol ; 44(1): 2408678, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39360907

RESUMO

BACKGROUND: Idiopathic polyhydramnios is associated with adverse neonatal outcome. The aim of this study was to examine the value of the middle cerebral artery pulsatility index (MCA-PI) in predicting adverse perinatal outcome in pregnancies affected by idiopathic polyhydramnios. METHODS: A retrospective study was performed during 2013-2022 at a tertiary-care university affiliated hospital. The study included singleton pregnancies with idiopathic polyhydramnios. Obstetrical and perinatal outcomes were compared between women with MCA-PI <10th percentile and women with MCA-P ≥ 10th percentile. A composite adverse perinatal outcome was defined as an Apgar score <7 at 5 minutes, umbilical artery pH <7.15, emergent caesarean delivery (CD) or operative delivery due to foetal distress, neonatal intensive care admission or foetal death. RESULTS: Among 45,459 pregnancies, 128 (0.3%) had idiopathic polyhydramnios; 27 exhibited MCA-PI <10th percentile. Among the latter, compared to pregnancies with MCA-PI ≥10th percentile group, the rates were higher of emergent CD (25.9% vs. 7.9%, p = 0.017) and adverse perinatal outcomes (37.0% vs. 15.8%, p = 0.020). These differences persisted in a subgroup analysis of women with moderate or severe polyhydramnios. In the MCA-PI <10th percentile group, the median MCA-PI and cerebroplacental ratio were lower: 0.9 vs. 1.7, p < 0.001 and 0.7 vs. 2.1, p < 0.001, respectively. Receiver operating characteristic curve analysis indicated a significant association of MCA-PI with emergent CD/operative delivery for foetal distress (area under curve = 0.672, p = 0.031); the sensitivity was 46.7% and specificity 82.3%. Cerebroplacental ratio values were not associated with adverse perinatal outcomes. CONCLUSIONS: Idiopathic polyhydramnios might be associated with foetal cerebral blood flow redistribution, potentially contributing to an increased risk of adverse neonatal outcomes. Prospective studies are required to establish the role of foetal Doppler studies in the antenatal surveillance of idiopathic polyhydramnios, and to determine whether evidence of abnormal MCA-PI serves as a reliable predictor of perinatal outcomes, potentially necessitating labour induction.


Polyhydramnios is a condition in pregnancy characterized by an excessive amount of amniotic fluid, and in many cases, the cause remains unidentified, referred to as idiopathic polyhydramnios. This study aimed to determine whether changes in blood flow to the fetus's brain, specifically in the middle cerebral artery (MCA), could predict adverse outcomes during delivery. To assess this, the researchers used Doppler ultrasound to measure the pulsatility index (PI) of the MCA, which reflects the blood flow resistance in the artery. The study compared two groups of pregnancies with idiopathic polyhydramnios­those with reduced MCA blood flow (below the 10th percentile) and those with normal blood flow. It was observed that pregnancies with reduced MCA-PI were more likely to experience complications, such as emergency cesarean deliveries due to fetal distress and the need for neonatal intensive care unit admissions. These findings suggest that altered blood flow in the fetal brain might indicate increased risks of complications during delivery. The results support the idea that monitoring MCA blood flow in pregnancies complicated by polyhydramnios could offer valuable insights for early intervention and management. However, further research is necessary to confirm whether MCA Doppler assessments can reliably predict which pregnancies are at higher risk and whether such monitoring should guide clinical decisions like early induction of labor.


Assuntos
Artéria Cerebral Média , Poli-Hidrâmnios , Resultado da Gravidez , Fluxo Pulsátil , Ultrassonografia Pré-Natal , Humanos , Feminino , Gravidez , Poli-Hidrâmnios/diagnóstico por imagem , Estudos Retrospectivos , Artéria Cerebral Média/diagnóstico por imagem , Artéria Cerebral Média/embriologia , Artéria Cerebral Média/fisiopatologia , Adulto , Resultado da Gravidez/epidemiologia , Recém-Nascido , Circulação Cerebrovascular/fisiologia , Sofrimento Fetal/fisiopatologia , Cesárea/estatística & dados numéricos
9.
BMC Pregnancy Childbirth ; 24(1): 658, 2024 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-39390395

RESUMO

OBJECTIVE: To investigate the structural abnormalities, genetic results, and postnatal clinical outcomes of fetuses with bovine aortic arch (Bovine Aortic Arch, BAA) to provide a basis for prenatal counseling and management. METHODS: A retrospective analysis was conducted on 216 fetuses diagnosed with bovine aortic arch through prenatal ultrasound screening at the First Affiliated Hospital of Anhui Medical University and the No.901 Hospital of the Joint Service of the People's Liberation Army from January 2019 to February 2023. Their family history of genetic diseases, prenatal screening results, and postnatal follow-up data were collected. The fetuses were divided into an isolated BAA group (n = 192) and a non-isolated BAA group (n = 24). Chromosomal karyotyping and copy number variation (CNV) testing were conducted, and statistical analysis was performed using SPSS 22.0 software. RESULTS: Of the 216 fetuses with BAA, 192 were isolated BAA (88.89%), and 24 were non-isolated BAA (11.11%). Among the isolated BAA fetuses, only 1 case (0.52%) had chromosomal karyotype and pathogenic CNV abnormalities. Among the non-isolated BAA fetuses, 4 cases (16.67%) had chromosomal or CNV abnormalities, but the overall risk was low. The postnatal outcomes of isolated BAA fetuses were good (99.48%), while 79.17% of non-isolated BAA fetuses had good postnatal outcomes. CONCLUSION: Most BAA fetuses are isolated, with a very low incidence of chromosomal abnormalities and pathogenic CNVs, and have good postnatal outcomes. The clinical value of isolated BAA is limited, and invasive prenatal diagnosis is not recommended for low-risk populations. Prenatal screening should focus on the risk of concurrent severe structural anomalies and chromosomal abnormalities.


Assuntos
Aorta Torácica , Ultrassonografia Pré-Natal , Feminino , Gravidez , Humanos , Estudos Retrospectivos , Ultrassonografia Pré-Natal/estatística & dados numéricos , Aorta Torácica/diagnóstico por imagem , Aorta Torácica/anormalidades , Aorta Torácica/embriologia , Adulto , Cariotipagem , Variações do Número de Cópias de DNA , Aberrações Cromossômicas/estatística & dados numéricos , Diagnóstico Pré-Natal/métodos , Recém-Nascido , Resultado da Gravidez , Feto/anormalidades
10.
BMC Pregnancy Childbirth ; 24(1): 662, 2024 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-39394069

RESUMO

BACKGROUND: Prenatal ultrasound findings of fetal bilateral echogenic kidneys accompanied by oligohydramnios can be highly stressful for both pregnant women and physicians. The diversity of underlying causes makes it challenging to confirm a prenatal diagnosis, predict postnatal outcomes, and counsel regarding recurrence risks in future pregnancies. CASE PRESENTATION: We report two cases of abnormal fetal echogenic kidneys with oligohydramnios detected in the early third trimester. Autosomal recessive polycystic kidney disease (ARPKD), a rare genetic syndrome, was initially suspected in both cases. However, postnatal diagnoses differed: the first case was confirmed as glomerulocystic kidney disease (GCKD) through renal pathology, while the second case was diagnosed as ARPKD with a compound heterozygous likely pathogenic PKHD1 mutation. CONCLUSION: Prenatal diagnosis of fetal echogenic kidneys with oligohydramnios should prioritize accurate diagnosis. Given the differences in the clinical spectrum, GCKD should be considered a differential diagnosis for this condition, particularly ARPKD. This study highlights the importance and benefits of molecular diagnosis and postnatal renal pathology for precise diagnosis and effective counseling.


Assuntos
Rim , Oligo-Hidrâmnio , Rim Policístico Autossômico Recessivo , Ultrassonografia Pré-Natal , Humanos , Feminino , Oligo-Hidrâmnio/diagnóstico por imagem , Gravidez , Adulto , Rim/anormalidades , Rim/diagnóstico por imagem , Rim Policístico Autossômico Recessivo/diagnóstico por imagem , Rim Policístico Autossômico Recessivo/complicações , Rim Policístico Autossômico Recessivo/genética , Diagnóstico Diferencial , Mutação , Receptores de Superfície Celular
11.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 41(9): 1072-1076, 2024 Sep 10.
Artigo em Chinês | MEDLINE | ID: mdl-39217485

RESUMO

OBJECTIVE: To explore the clinical phenotype and genetic etiology for a Chinese pedigree affected with Autosomal dominant polycystic kidney disease (ADPKD). METHODS: A pedigree with ADPKD diagnosed at the Department of Gynaecology of the First Affiliated Hospital of Zhengzhou University in December 2020 was selected as the study subject. Clinical data of the pedigree was collected, and whole exome sequencing (WES) was carried out for the proband. Candidate variants were verified by Sanger sequencing of the proband and her relatives. RESULTS: Fetal ultrasonography showed increased volume and parenchymal echogenicity in both kidneys. The fetus was found to harbor c.11098C>T (p.R3700C) and c.11039T>C (p.F3680S) compound heterozygous variants of the PKD1 gene, which were respectively inherited from its mother and father. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), both variants were predicted to be likely pathogenic (PM1+PM2_supporting+PP3). CONCLUSION: The c.11098C>T (p.R3700C) and c.11039T>C (p.F3680S) compound heterozygous variants of the PKD1 gene probably underlay the ADPKD in the fetus. Above finding has provided guidance for the genetic counseling and prenatal diagnosis for this pedigree.


Assuntos
Testes Genéticos , Rim Policístico Autossômico Dominante , Diagnóstico Pré-Natal , Canais de Cátion TRPP , Adulto , Feminino , Humanos , Masculino , Gravidez , População do Leste Asiático/genética , Sequenciamento do Exoma , Heterozigoto , Mutação , Linhagem , Rim Policístico Autossômico Dominante/genética , Rim Policístico Autossômico Dominante/diagnóstico por imagem , Canais de Cátion TRPP/genética , Ultrassonografia Pré-Natal
12.
BMC Pregnancy Childbirth ; 24(1): 595, 2024 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-39261755

RESUMO

INTRODUCTION: In the current study, we screened for highly sensitive and specific predictors of premature birth, with the aim to establish an sPTB prediction model that is suitable for women in China and easy to operate and popularize, as well as to establish a sPTB prediction scoring system for early, intuitive, and effective assessment of premature birth risk. METHODS: A total of 685 pregnant women with a single pregnancy during the second trimester (16-26 weeks) were divided into premature and non-premature delivery groups based on their delivery outcomes. Clinical and ultrasound information were collected for both groups, and risk factors that could lead to sPTB in pregnant women were screened and analyzed using a cut-off value. A nomogram was developed to establish a prediction model and scoring system for sPTB. In addition, 119 pregnant women who met the inclusion criteria for the modeling cohort were included in the external validation of the model. The accuracy and consistency of the model were evaluated using the area under the receiver operating characteristic (ROC) and C-calibration curves. RESULTS: Multivariate logistic regression analysis showed a significant correlation (P < 0.05) between the number of miscarriages in pregnant women, history of miscarriages in the first week of pregnancy, history of preterm birth, CL of pregnant women, open and continuous cervical opening, and the occurrence of sPTB in pregnant women. We drew a nomogram column chart based on the six risk factors mentioned above, obtained a predictive model for sPTB, and established a scoring system to divide premature birth into three risk groups: low, medium, and high. After validating the model, the Hosmer Lemeshow test indicated a good fit (p = 0.997). The modeling queue C calibration curve was close to diagonal (C index = 0.856), confirming that the queue C calibration curve was also close to diagonal (C index = 0.854). The AUCs of the modeling and validation queues were 0.850 and 0.881, respectively. CONCLUSION: Our predictive model is consistent with China's national conditions, as well as being intuitive and easy to operate, with wide applicability, thus representing a helpful tool to assist with early detection of sPTB in clinical practice, as well as for clinical management in assessing low, medium, and high risks of sPTB.


Assuntos
Nomogramas , Nascimento Prematuro , Humanos , Feminino , Gravidez , Nascimento Prematuro/epidemiologia , Adulto , China/epidemiologia , Fatores de Risco , Medição de Risco/métodos , Segundo Trimestre da Gravidez , Curva ROC , Valor Preditivo dos Testes , Modelos Logísticos , Ultrassonografia Pré-Natal
13.
BMC Pediatr ; 24(1): 580, 2024 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-39272011

RESUMO

BACKGROUND: Prenatally diagnosed hepatic hilar cysts are a challenging finding for the clinician. They can either be a sign of cystic biliary atresia (BA) or a choledochal cyst (CC), two diagnoses with different postnatal management and prognosis. Based on a case report of four patients, we aim to propose a management algorithm for prenatally diagnosed "hepatic hilar cysts". CASE PRESENTATION: A hepatic hilar cyst, ranging from 5 to 25 mm, was detected prenatally in all four girls confirmed postnatally along with the presence of a gallbladder. Stool color was normal until two weeks of life at which time the stool color became lighter, and the patients developed cholestasis. All were operated before seven weeks of life: Case 1 had a CC with patent but irregular intrahepatic bile ducts at intraoperative cholangiogram, and no communication with the duodenum. A Roux-en-Y bilioenteric anastomosis was performed. The cyst showed complete epithelial lining loss, and liver pathology showed BA features. Case 2 had the final diagnosis of cystic BA with patent but abnormal intrahepatic bile ducts. She underwent two operations: the first operation at four weeks as described for case 1, since intraoperative findings were similar, as was histology. As cholestasis increased postoperatively, she underwent a Kasai hepato-porto-enterostomy six weeks later, where distinct BA findings were found with complete scarring of the hilar plate. Case 3 had a cystic BA with the cyst located within the common bile duct and atretic bile ducts proximal to the porta hepatis. It exhibited no communication with the liver or duodenum. A Kasai operation was performed, with histology showing complete epithelial loss within the cyst wall and scarring of the hilar plate. Case 4 had a cystic BA presenting a completely obliterated hepatic duct with the cyst lying within the common bile duct. A Kasai procedure was performed. Histology showed a common bile duct with a residual lumen of 0.1 mm. CONCLUSIONS: The spectrum of disease from CC to BA in the setting of a prenatally discovered hepatic hilar cyst is emphasized. Even if cholangiogram differentiates most patients with BA from those with CC, caution is advised for transitional types.


Assuntos
Atresia Biliar , Cisto do Colédoco , Vesícula Biliar , Humanos , Cisto do Colédoco/cirurgia , Cisto do Colédoco/diagnóstico por imagem , Feminino , Atresia Biliar/cirurgia , Atresia Biliar/diagnóstico , Atresia Biliar/complicações , Vesícula Biliar/anormalidades , Vesícula Biliar/patologia , Vesícula Biliar/cirurgia , Recém-Nascido , Gravidez , Ultrassonografia Pré-Natal , Diagnóstico Diferencial , Cistos/cirurgia , Cistos/diagnóstico por imagem , Lactente
14.
Sci Rep ; 14(1): 21123, 2024 09 10.
Artigo em Inglês | MEDLINE | ID: mdl-39256496

RESUMO

The goal of our research is to elucidate and better assess placental function in rats with preeclampsia through an innovative application of ultrasound-based radiomics. Using a rat model induced with L-NAME, we carefully investigated placental dysfunction via microstructural analysis and immunoprotein level assessment. Employing the Boruta feature selection method on ultrasound images facilitated the identification of crucial features, consequently enabling the development of a robust model for classifying placental dysfunction. Our study included 12 pregnant rats, and thorough placental evaluations were conducted on 160 fetal rats. Distinct alterations in placental microstructure and angiogenic factor expression were evident in rats with preeclampsia. Leveraging high-throughput mining of quantitative image features, we extracted 558 radiomic features, which were subsequently used to construct an impressive evaluation model with an area under the receiver operating curve (AUC) of 0.95. This model also exhibited a remarkable sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of 88.7%, 91.5%, 90.2%, 90.4%, and 90.0%, respectively. Our findings highlight the ability of ultrasound-based radiomics to detect abnormal placental features, demonstrating its potential for evaluating both normative and impaired placental function with high precision and reliability.


Assuntos
Modelos Animais de Doenças , Placenta , Pré-Eclâmpsia , Gravidez , Feminino , Pré-Eclâmpsia/diagnóstico por imagem , Pré-Eclâmpsia/fisiopatologia , Animais , Placenta/diagnóstico por imagem , Ratos , Ultrassonografia/métodos , Ratos Sprague-Dawley , Curva ROC , Ultrassonografia Pré-Natal/métodos , Radiômica
16.
J Matern Fetal Neonatal Med ; 37(1): 2399943, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39231793

RESUMO

OBJECTIVE: This study aimed to investigate the magnetic resonance imaging (MRI) characteristics of abnormal placental shapes (APS) compared with prenatal ultrasound. METHODS: From an initial cohort of 613 women with a high prevalence of placenta accreta spectrum (PAS) disorders, the MRI findings of 27 pregnant women with APS who underwent antenatal ultrasound and MRI examinations before delivery were retrospectively analyzed. The clinicopathological findings were used as the gold standard, and the sensitivity, specificity, and accuracy of antenatal MRI and a multidisciplinary team experienced in diagnosing APS were assessed. RESULTS: The 27 patients diagnosed with APS included 14 cases of succenturiate placenta, eight cases of the bilobed placenta, two cases of the circumvallate placenta, and one case each of placenta chorioangioma, placenta membranacea, and placental mesenchymal dysplasia. The sensitivity and specificity of APS classification with antenatal MRI were 40.74% (11/27) and 97.65% (498/510), respectively. Nonetheless, the multidisciplinary team achieved a higher sensitivity and specificity of up to 96.29% (26/27) and 99.22% (506/510), respectively. CONCLUSION: We have demonstrated the complementary role of MRI and ultrasound in the detection of placental shapes in the setting of MRI images, highlighting the importance of radiologists communicating with sonographers in the diagnosis of APS.


Assuntos
Imageamento por Ressonância Magnética , Placenta , Ultrassonografia Pré-Natal , Humanos , Feminino , Gravidez , Imageamento por Ressonância Magnética/métodos , Adulto , Estudos Retrospectivos , Placenta/diagnóstico por imagem , Placenta/patologia , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/patologia , Doenças Placentárias/diagnóstico por imagem , Doenças Placentárias/patologia , Sensibilidade e Especificidade
17.
Echocardiography ; 41(9): e15915, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39258497

RESUMO

This study presents the modified Cordes method, a novel ultrasonographic technique that provides a precise and practical evaluation of fetal situs during pregnancy, particularly in the first and early second trimesters. This method entails precisely aligning the probe and hand to obtain a clear image of the fetal thorax in the axial plane. The fundamental procedures involve ascertaining the initial location of the fetal head, rotating the probe, aligning the thorax at the center, and positioning the left hand to clearly identify the fetal situs. Tests conducted in many pregnancies have verified that the modified Cordes approach offers prompt and precise identification of fetal situs and is more accessible to acquire, particularly for new practitioners. The modified Cordes approach is a straightforward and reliable technique for establishing the position of the fetus. Its application during the first and early second trimesters improves diagnostic accuracy by minimizing the chances of misinterpretation. This method offers benefits by making the process of determining fetal situs more objective and straightforward for practitioners with varying degrees of experience.


Assuntos
Ultrassonografia Pré-Natal , Humanos , Ultrassonografia Pré-Natal/métodos , Feminino , Gravidez , Reprodutibilidade dos Testes , Situs Inversus/diagnóstico por imagem , Situs Inversus/embriologia , Segundo Trimestre da Gravidez
18.
Clin Lab ; 70(9)2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-39257112

RESUMO

BACKGROUND: This study aimed to explore the genetic basis of a fetus with ultrasound indicating a thickening of the nuchal translucency (NT) and a choroid plexus cyst. METHODS: Fetal amniotic fluid and peripheral blood were collected for a G-banding karyotype analysis and single nucleotide polymorphism array (SNP-array) detection. RESULTS: The chromosome karyotypes of the fetus and its parents were normal. SNP-array showed the fetus had carried 277 kb microdeletion at 14q11.2, which was a new mutation. After the induced abortion, the fetus was diagnosed with macrocephaly. CONCLUSIONS: A prenatal diagnosis of a fetus with 14q11.2 microdeletion-induced intrauterine growth retardation was confirmed, which has provided guidance for the subsequent pregnancy.


Assuntos
Deleção Cromossômica , Polimorfismo de Nucleotídeo Único , Ultrassonografia Pré-Natal , Humanos , Feminino , Gravidez , Adulto , Cromossomos Humanos Par 14/genética , Retardo do Crescimento Fetal/genética , Retardo do Crescimento Fetal/diagnóstico por imagem , Retardo do Crescimento Fetal/diagnóstico , Cariotipagem , Medição da Translucência Nucal , Feto/diagnóstico por imagem , Feto/anormalidades , Megalencefalia/genética , Megalencefalia/diagnóstico por imagem
19.
Taiwan J Obstet Gynecol ; 63(5): 700-708, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39266151

RESUMO

OBJECTIVE: Fetal venous system malformations frequently coincide with cardiac or extracardiac anomalies. This study explores our experience with an integrated fetal echocardiography approach and analyzes the characteristics and outcomes of fetal venous system disorders. MATERIALS AND METHODS: We conducted a retrospective study with 7048 pregnant women (7255 fetuses) who underwent complete two-dimensional (2D) fetal echocardiographic examinations. We primarily employed an integrated 2D approach. Three-/four-dimensional (3D/4D) spatiotemporal image correlation was supplemental. Fetal venous disorders were classified into 3 groups: cardinal (Group 1), umbilical and vitelline (Group 2), and pulmonary (Group 3) systems, based on embryological-anatomical considerations. Maternofetal data were recorded alongside imaging diagnoses. RESULTS: Congenital venous malformations were identified in 98 fetuses, yielding a prevalence of 1.35% (98/7255). Six participants had coexisting venous disorders from different groups. Group 1 included 48 fetuses with persistent left superior vena cava (LSVC) and 3 others (unidentified brachiocephalic vein, left inferior vena cava (IVC), and interrupted IVC with azygous continuation to SVC). Group 2 had 39 fetuses with persistent right umbilical vein and 7 with umbilical-portal-ductus venosus disorders. Group 3 had 7 fetuses with pulmonary venous return disorders. Group 2 showed the most favorable outcomes (alive and without neonatal death), while Group 3 exhibited the poorest. Associated cardiac defects were observed in 43.1% of Group 1, 8.7% of Group 2, and 57.1% of Group 3 (P < 0.001), displaying a broad spectrum of non-specific anomalies. Meanwhile, Group 2 had a greater occurrence of a single venous disorder (93.5%) compared to Group 1 (88.2%) and Group 3 (57.1%) (P = 0.020). CONCLUSION: Our approach offers an integrated strategy for assessing the fetal venous system during fetal echocardiography, providing multiple views to characterize venous anomalies. The presence of a fetal venous disorder may indicate the coexistence of more severe abnormalities, and the prognosis depends on associated anomalies or the venous disorders per se.


Assuntos
Ultrassonografia Pré-Natal , Humanos , Feminino , Gravidez , Estudos Retrospectivos , Ultrassonografia Pré-Natal/métodos , Adulto , Ecocardiografia/métodos , Malformações Vasculares/diagnóstico por imagem , Malformações Vasculares/embriologia , Veias Umbilicais/diagnóstico por imagem , Veias Umbilicais/anormalidades , Veias Umbilicais/embriologia , Doenças Fetais/diagnóstico por imagem , Cardiopatias Congênitas/diagnóstico por imagem , Cardiopatias Congênitas/embriologia , Relevância Clínica
20.
Taiwan J Obstet Gynecol ; 63(5): 717-721, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39266153

RESUMO

OBJECTIVE: To determine the incidence and present our experience with prenatal diagnosis and postnatal outcome of dacryocystocele. MATERIAL AND METHODS: All cases of congenital dacryocystocele diagnosed in our center between 2020 and 2022 were identified in our database to establish the incidence of these defects. The medical records were then reviewed for gestational age, gender, size, and side of dacryocystocele and postnatal outcome. RESULTS: A total of 26 cases with dacryocystoceles were found at a mean gestation age of 30 weeks (range, 29-33 weeks). The overall incidence was 1.35%, there was an obvious female predominance (73%), 69% of cases were unilateral and 31% were bilateral. There were no serious associated anomalies. The postnatal outcome was obtained in 88% of cases (23/26), in 39% (9 out of 23) cases the dacryocystocele was confirmed postnatally, and in 7 (77%) of these it was complicated by dacryocystitis. The spontaneous resolution was more likely in the right-sided lesions, and this was statistically significant. The treatment in cases with dacryocystitis involved massage and local antibiotics and was successful in 71% of cases. 2 cases (29%) suffer from recurrent dacryocystitis and are followed up with recurrent probing and local antibiotics. No breathing difficulties were described postnatally in our study group. CONCLUSION: The overall prenatal incidence of dacryocystocele was 1.35%. The outcome is favorable, 61% of dacryocystoceles in our study resolved spontaneously and in no case postnatal breathing complications were reported. Dacryocystitis was common in persisting cases but was usually treated successfully by massage and antibiotics. The right-sided dacryocystoceles are more likely to resolve spontaneously than left-sided, and this was the only significant factor predicting persistence.


Assuntos
Idade Gestacional , Humanos , Feminino , Gravidez , Masculino , Recém-Nascido , Incidência , Ultrassonografia Pré-Natal , Estudos Retrospectivos , Dacriocistite/diagnóstico , Dacriocistite/epidemiologia , Dacriocistite/congênito , Adulto , Diagnóstico Pré-Natal/métodos , Obstrução dos Ductos Lacrimais/congênito , Obstrução dos Ductos Lacrimais/diagnóstico , Taiwan/epidemiologia
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