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Gug M, Rațiu A, Andreescu N, Farcaș S, Laitin S, Gug C. Approach and Management of Pregnancies with Risk Identified by Non-Invasive Prenatal Testing. J Pers Med 2024; 14:366. [PMID: 38672993 PMCID: PMC11050912 DOI: 10.3390/jpm14040366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/13/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
This study represents our second investigation into NIPT, involving a more extensive patient cohort with a specific emphasis on the high-risk group. The high-risk group was subsequently divided into two further groups to compare confirmed cases versus unconfirmed via direct methods. The methodology encompassed the analysis of 1400 consecutive cases from a single genetic center in western Romania, where NIPT was used to assess the risk of specific fetal chromosomal abnormalities. All high-risk cases underwent validation through direct analysis of fetal cells obtained via invasive methods, including chorionic villus sampling and amniocentesis. The confirmation process utilized QF-PCR, karyotyping, and SNP-Array methods customized to each case. Results: A high risk of aneuploidy at NIPT was identified in 36 out of 1400 (2.57%) cases and confirmed in 28 cases. The study also detected an increased risk for copy number variations (CNVs) in 1% of cases, confirmed in two instances involving one large microdeletion and one large microduplication. Trisomy 21 was the exclusive anomaly where NIPT confirmed all cases with identified risk. High-risk NIPT results which were not validated by invasive methods, were classified as false positives; parents in these cases determined to continue the pregnancy. In conclusion, NIPT can serve as a screening method for all pregnancies; however, in high-risk cases, an invasive confirmation test is strongly recommended.
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Affiliation(s)
- Miruna Gug
- Doctoral School, "Victor Babeş" University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Medical Genetics Office Dr. Gug, 300200 Timisoara, Romania
| | - Adrian Rațiu
- Department of Obstetrics and Gynecology II, "Victor Babes" University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Timisoara Municipal Emergency Clinical Hospital, 300202 Timisoara, Romania
| | - Nicoleta Andreescu
- Department of Microscopic Morphology, Discipline of Genetics, "Victor Babeş" University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Genomic Medicine Centre, "Victor Babeș" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Simona Farcaș
- Department of Microscopic Morphology, Discipline of Genetics, "Victor Babeş" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Sorina Laitin
- Department of Infectious Diseases, Discipline of Epidemiology, "Victor Babeş" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Cristina Gug
- Medical Genetics Office Dr. Gug, 300200 Timisoara, Romania
- Department of Microscopic Morphology, Discipline of Genetics, "Victor Babeş" University of Medicine and Pharmacy, 300041 Timisoara, Romania
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Popescu DE, Roșca I, Jura AMC, Cioca A, Pop O, Lungu N, Popa ZL, Rațiu A, Boia M. Prompt Placental Histopathological and Immunohistochemical Assessment after SARS-CoV-2 Infection during Pregnancy-Our Perspective of a Small Group. Int J Mol Sci 2024; 25:1836. [PMID: 38339114 PMCID: PMC10855253 DOI: 10.3390/ijms25031836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/27/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Research indicates compelling evidence of SARS-CoV-2 vertical transmission as a result of placental pathology. This study offers an approach to histopathological and immunohistochemical placental observations from SARS-CoV-2-positive mothers compared to negative ones. Out of the 44 examined placentas, 24 were collected from patients with a SARS-CoV-2 infection during pregnancy and 20 were collected from patients without infection. The disease group showed strong SARS-CoV-2 positivity of the membranes, trophoblasts, and fetal villous macrophages. Most infections occurred during the third trimester of pregnancy (66.6%). Pathology revealed areas consistent with avascular villi (AV) and thrombi in the chorionic vessels and umbilical cord in the positive group, suggesting fetal vascular malperfusion (FVM). This study shows SARS-CoV-2 has an impact on coagulation, demonstrated by fetal thrombotic vasculopathy (p = 0.01) and fibrin deposition (p = 0.01). Other observed features included infarction (17%), perivillous fibrin deposition (29%), intervillous fibrin (25%), delayed placental maturation (8.3%), chorangiosis (13%), chorioamnionitis (8.3%), and meconium (21%). The negative control group revealed only one case of placental infarction (5%), intervillous fibrin (5%), delayed placental maturation (5%), and chorioamnionitis (5%) and two cases of meconium (19%). Our study sheds light on the changes and differences that occurred in placentas from SARS-CoV-2-infected mothers and the control group. Further research is necessary to definitively establish whether SARS-CoV-2 is the primary culprit behind these intricate complications.
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Affiliation(s)
- Daniela Eugenia Popescu
- Department of Obstetrics and Gynecology, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
- Department of Neonatology, Premiere Hospital, Regina Maria Health Network, Calea Aradului, No. 113, 300645 Timişoara, Romania
| | - Ioana Roșca
- Faculty of Midwifery and Nursery, University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
| | - Ana Maria Cristina Jura
- Department of Obstetrics and Gynecology, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
| | - Andreea Cioca
- Department of Pathology, Premiere Hospital, Regina Maria Health Network, Calea Aradului, No. 113, 300645 Timişoara, Romania;
| | - Ovidiu Pop
- Department of Morphological Sciences, University of Oradea, Universității Street, No. 1, 410087 Oradea, Romania
| | - Nicoleta Lungu
- Department of Obstetrics and Gynecology, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
| | - Zoran-Laurențiu Popa
- Department XII Obstetrics and Gynecology—Obstetrics and Gynecology III, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
| | - Adrian Rațiu
- Department of Obstetrics and Gynecology, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
| | - Mărioara Boia
- Department of Obstetrics and Gynecology, “Victor Babeş” University of Medicine and Pharmacy, Eftimie Murgu Sq. No. 2, 300041 Timişoara, Romania
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Gug C, Rațiu A, Navolan D, Drăgan I, Groza IM, Păpurică M, Vaida MA, Mozoș I, Jurcă MC. Incidence and Spectrum of Chromosome Abnormalities in Miscarriage Samples: A Retrospective Study of 330 Cases. Cytogenet Genome Res 2019; 158:171-183. [DOI: 10.1159/000502304] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2019] [Indexed: 11/19/2022] Open
Abstract
Embryonic chromosome abnormalities are the most important causes of early spontaneous abortions. The aim of this study was to evaluate the spectrum and the frequencies of chromosomal anomalies in spontaneous miscarriages and to correlate these with maternal and gestational age. A retrospective study was conducted based on data obtained from a single medical genetics laboratory that collects cases from Western Romania. Long-term cultures of chorionic villus samples were established for karyotype analysis by GTG banding. Additionally, we performed QF-PCR to detect aneuploidies for chromosomes 13, 18, 21, X, and Y. In total, chorionic villi samples of 330 miscarriages (from August 2007 to November 2018) were analyzed. Results were obtained for 90.6% (299/330) of the cases. The remaining 9.4% (31/330) were excluded from evaluation due to inconclusive results. An abnormal karyotype was found in 156 cases (47.27%), while in 143 cases (43.33%) a normal karyotype was present. Of the abnormal cases, 88 (56.4%) had trisomies, 25 (16.0%) presented polyploidies, 25 (16.0%) had monosomy X, and 19 (11.5%) chromosome rearrangements. QF-PCR analysis identified aneuploidy in 2 out of 8 samples (25%). Cytogenetic investigations of spontaneous abortions provide valid data as to the cause of the abortion. This information may also be helpful for genetic counseling and considering future pregnancies.
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