FOR HIGHLY PATHOGENIC INFLUENZA A(H1N1) IN PREGNANCY AND IMPACT ON BIRTH OUTCOMES

The purpose of this study was to improve the diagnosis of influenza A (H1N1) in pregnant women and to determine the risk of developing various types of pathology in newborns, depending on the gestation period at which the infection influenza occured. Materials and methods. A total of 94 pregnant women, an average age of 28.7 ± 0.48, who were on treatment with influenza diagnosis in the Specialized Infectious Disease Clinical Hospital of the Ministry of Health of the Krasnodar Territory during the epidemic rise of influenza A (H1N1) from December 2015 to February 2016. The diagnosis of influenza A (H1N1) was confirmed in all cases by the isolation of RNA of influenza A (H1N1) virus by PCR in a nasopharyngeal scrap. Patients applied for medical care on average 2.74 ± 0.16 days of illness. Pregnancy at the gestational age corresponding to the first trimester was in 20 (21.3%), in the term of the second trimester - in 36 (38.3%), and in the third trimester - in 38 (40.4 %) of women. The results of the laboratory examination were evaluated. Pregnancy outcomes were traced in 94 women, a telephone questioning of women was conducted 3-6 months after childbirth, the state of children at birth was analyzed based on the results of a retrospective analysis of 91 neonatal card in the maternity hospital. Results. Highly pathogenic influenza A (H1N1) in pregnant women during early treatment and prescription of antiviral therapy was mainly in medium-heavy form (96.81%). In the first day of the disease, subfebrile fever predominated - 63.3%, febrile fever subsequently developed in 53.33%, headache, and other intoxication manifestations were less than in the case of epidemical influenza A. Catarrhal syndrome is not bright, often characterized by early joint cough. The main complication of influenza, determining the severity of the patient state, was pneumonia, developed in one third of patients. Early antibacterial and antiviral therapy in most cases prevented the formation of severe lung lesions and abortion. Pregnancy ended with urgent deliveries in 89 women (94.68%); in three cases, in women who had influenza at 6, 15 and 29 weeks of gestation, abortion with fetal death (3.19%) occurred. Premature delivery at 28 and 33 weeks of gestation with the birth of a viable child occurred in two cases (2.13%). The development of influenza in the first trimester resulted in complications in 42% of cases, increasing the risk of abortion and developmental anomalies, mainly from the cardiovascular system (26.31%). Infection of pregnant women with influenza in the second trimester led to a different pathology of newborns in 49% cases. Among them, acute intranatal asphyxia prevailed (14.29%), pathology of the nervous system (11.43%), less frequently developed intrauterine infection, pneumonia (5.71%). Special attention is required by women with influenza in the third trimester of pregnancy, in this group, the pathology of the newborns was noted in 54% of cases, mainly in the form of acute intranatal asphyxia (29.73%) against the background of intrauterine infection, pneumonia (16.22%), central nervous system pathology (8.11%). The conclusion. Despite the medium-heavy course, the woman’s influenza had an adverse effect on the formation of the fetus and the condition of the newborn at birth. On the background of influenza infection, the degree and nature of exposure depended on the gestation period.

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FOR HIGHLY PATHOGENIC INFLUENZA A(H1N1) IN PREGNANCY AND IMPACT ON BIRTH OUTCOMES

Epidemiology and Infectious Diseases (Russian Journal) ◽

10.18821/1560-9529-2019-23-3-119-125 ◽

2018 ◽

Vol 23 (3) ◽

pp. 119-125

Author(s):

M. G. Avdeeva ◽

O. R. Gafurova

Keyword(s):

Nervous System ◽

Pregnant Women ◽

Influenza A ◽

Intrauterine Infection ◽

First Trimester ◽

Second Trimester ◽

Third Trimester ◽

Highly Pathogenic ◽

The Third ◽

Influenza A H1n1

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Gestation specific reference intervals for thyroid function tests in pregnancy

Clinical Chemistry and Laboratory Medicine (CCLM) ◽

10.1515/cclm-2015-0569 ◽

2016 ◽

Vol 54 (8) ◽

Cited By ~ 6

Author(s):

Süleyman Akarsu ◽

Filiz Akbiyik ◽

Eda Karaismailoglu ◽

Zeliha Gunnur Dikmen

Keyword(s):

Pregnant Women ◽

Thyroid Function ◽

First Trimester ◽

Reference Intervals ◽

Specific Reference ◽

Thyroid Function Tests ◽

Second Trimester ◽

Third Trimester ◽

The Third ◽

Function Tests

AbstractThyroid function tests are frequently assessed during pregnancy to evaluate thyroid dysfunction or to monitor pre-existing thyroid disease. However, using non-pregnant reference intervals can lead to misclassification. International guidelines recommended that institutions should calculate their own pregnancy-specific reference intervals for free thyroxine (FT4), free triiodothyronine (FT3) and thyroid-stimulating hormone (TSH). The objective of this study is to establish gestation-specific reference intervals (GRIs) for thyroid function tests in pregnant Turkish women and to compare these with the age-matched non-pregnant women.Serum samples were collected from 220 non-pregnant women (age: 18–48), and 2460 pregnant women (age: 18–45) with 945 (39%) in the first trimester, 1120 (45%) in the second trimester, and 395 (16%) in the third trimester. TSH, FT4 and FT3 were measured using the Abbott Architect i2000SR analyzer.GRIs of TSH, FT4 and FT3 for first trimester pregnancies were 0.49–2.33 mIU/L, 10.30–18.11 pmol/L and 3.80–5.81 pmol/L, respectively. GRIs for second trimester pregnancies were 0.51–3.44 mIU/L, 10.30–18.15 pmol/L and 3.69–5.90 pmol/L. GRIs for third trimester pregnancies were 0.58–4.31 mIU/L, 10.30–17.89 pmol/L and 3.67–5.81 pmol/L. GRIs for TSH, FT4 and FT3 were different from non-pregnant normal reference intervals.TSH levels showed an increasing trend from the first trimester to the third trimester, whereas both FT4 and FT3 levels were uniform throughout gestation. GRIs may help in the diagnosis and appropriate management of thyroid dysfunction during pregnancy which will prevent both maternal and fetal complications.

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Cytokine response level in patients with influenza A (H1N1) in pregnant women and the incidence of newborn pathology

Epidemiology and Infectious Diseases (Russian Journal) ◽

10.17816/eid35179 ◽

2020 ◽

Vol 25 (1) ◽

pp. 4-10

Author(s):

Marina G. Avdeeva ◽

Ol’ga R. Gafurova ◽

Natalia V. Kolesnikova ◽

Yekaterina V. Kolesnikova

Keyword(s):

Pregnant Women ◽

Influenza A ◽

Intrauterine Infection ◽

First Trimester ◽

Cytokine Response ◽

Placental Insufficiency ◽

Type I ◽

Influenza A H1n1 ◽

Wide Range

Background: The physiological course of pregnancy is largely determined by immunological processes, the violation of which in the perinatal period can cause various congenital pathologies. The course of influenza during pregnancy largely depends on the level of physiological adjustment of the immune response. It is known that in severe cases of influenza A (H1N1), excessive production of a number of pro-inflammatory cytokines, the cytokine storm, is observed, with the development of endothelial necrosis. Aim: To determine the nature of the cytokine response to influenza A (H1N1) against the background of pregnancy and to clarify its relationship with the development of intrauterine neonatal pathology. Materials and methods: A total of 94 pregnant women were treated at the special clinical infectious diseases hospital of the Ministry of Health of the Krasnodar Region for influenza A (H1N1) during the epidemic recovery from December 2015 to February 2016. The diagnosis of influenza is confirmed by the isolation of RNA of influenza A (H1N1) virus by PCR in a nasopharyngeal scraping. Influenza occurred in the first trimester in 20 (21.3%), in the second trimester in 36 (38.3%) and in the third trimester in 38 (40.4%) women. The outcomes of pregnancy were traced, and a retrospective analysis of 91 neonatal observation cards in the maternity hospital was conducted. The comparison groups were as follows: 25 women with physiological pregnancy, 16 pregnant women with chronic placental insufficiency and intrauterine infection, and a control group of 20 healthy, non-pregnant women of reproductive age. The levels of IL-2, IL-4, IL-10, IFN-, and IFN- cytokines in blood serum were studied using the enzyme immunoassay with Vector-Best reagent kits (Novosibirsk) at a sensitivity of 1 pg/ml. The study of cytokine status was conducted at the height of the flu on the first day of admission to the hospital. Results: In pregnant women with influenza compared with physiological pregnancy, there are considerable decreases in the levels of IL-4 and IL-10, whereas IFN- and IFN- do not change significantly but have a wide range of indicators. Against the background of altered immunoreactivity in pregnancy, the immunosuppressive effects of the influenza virus, in blocking the production of type I interferons, exert a more pronounced negative effect. In pregnant women with influenza and those with chronic placental insufficiency combined with intrauterine infection, unidirectional changes in the levels of IL-4 and IL-10 against physiological pregnancy were detected. The level of IFN- in chronic placental insufficiency combined with intrauterine infection was significantly higher than the figures reported by other groups. The level of IFN- in chronic fetoplacental insufficiency and intrauterine infection was reduced. A significant increase in the IFN-/IL4 coefficient was associated with the development of intrauterine infection of the fetus. The level of IFN- was maximally reduced in women with influenza in the first trimester of pregnancy, whose newborns subsequently had developmental defects in the cardiovascular system. A decrease in the level of IFN- may reflect the onset of failure of the compensatory mechanisms of immunological regulation of pregnancy. Conclusion: Determination of the level of interleukins in the acute period of influenza in pregnant women makes it possible to assess the threat of development of the pathology of newborns. The determination of the levels of IL-4, IFN-, and IFN- is of diagnostic value. A high risk of intrauterine infection can be predicted with an increase in the IFN-/IL-4 coefficient. Prognostically unfavorable for the development of newborn malformations is a decrease in the level of IFN- in the development of influenza in women who are in early gestation.

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The course of ankylosing spondylitis during pregnancy: intermediate data of a prospective follow-up

Modern Rheumatology Journal ◽

10.14412/1996-7012-2019-2-61-72 ◽

2019 ◽

Vol 13 (2) ◽

pp. 61-72 ◽

Cited By ~ 1

Author(s):

O. A. Krichevskaya ◽

Z. M. Gandaloeva ◽

A. B. Demina ◽

T. V. Dubinina

Keyword(s):

Back Pain ◽

Ankylosing Spondylitis ◽

Disease Activity ◽

Pregnant Women ◽

Functional Status ◽

Gestational Age ◽

First Trimester ◽

Second Trimester ◽

Third Trimester ◽

The Third

The onset of ankylosing spondylitis (AS) more frequently occurs at the end of the third decade of life, which corresponds to the time of marriage and the birth of the first child and determines the relevance of a study of the interaction of AS and pregnancy.Objective: to describe the clinical presentations of AS and its therapy during pregnancy and to study AS activity dynamics and the patients' functional status during gestation.Patients and methods. The investigation enrolled 19 pregnant women who met the 1984 modified New York AS criteria. The mean age of the women was 32.2±1.1 years; their mean age at the onset of AS was 22.6±3.1 years; the duration of the disease was 147±20.7 months. The patients visited their physician at 10–11, 20–21, and 31–32 weeks of pregnancy. The investigators determined AS activity by the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and the Ankylosing Spondylitis Disease Activity Score (ASDAS) and functional status by the Bath Ankylosing Spondylitis Functional Index (BASFI) and the Bath Ankylosing Spondylitis Metrology Index (BASMI). The Maastricht Ankylosing Spondylitis Enthesitis Score (MASES) was used to assess enthesitis.Results and discussion. At the time of conception, 78.9% of the patients had inflammatory back pain with an intensity of 2.2±0.4 on a numerical rating scale; during pregnancy, 95% of the pregnant women experienced pain, its intensity increased by the second trimester (4.6±0.7) and remained at this level in the third trimester (p<0.05 between the month of conception and the second and third trimesters). By the third trimester, the nature of the pain changed: 55.5 and 61.1% of the patients reported reduced pain at rest and after exercise, respectively. The frequency and severity of enthesitis increased with gestational age: the MASES scores were higher in the third trimester (2.3±0.5) than that in the first-trimester (0.4±0.22; p<0.05). The frequency of extra-axial and extra-skeletal manifestations did not increase during gestation. Coxitis was detected in 27.8% of the pregnant women.The BASDAI increased from the time of conception (1.7±0.3) to the second trimester (3.3±0.5; p<0.05) and remained at this level in the third trimester. Multiple regression analysis revealed that the predictors of BASDAI levels in the third trimester were BASDAI scores (R2 =0.7) and back pain (R2 =0.9) at the time of conception, the use of biological agents 3 months before gestation (R2 =0.7) with their cumulative impact. Throughout pregnancy, the BASDAI was determined by a set of factors: the severity of pain in the back (β=0.6) and entheses (β=0.3) and weakness (β=0.6). By the end of the first trimester, the increased BASDAI scores were provided mainly by the higher level of general weakness (by 68.5%) and back pain (by 24.1%). In the second trimester, the higher BASDAI was due to the increased severity of enthesitis (by 30.7%) and back pain (by 27%).There were no changes in ASDAS-C-reactive protein (ASDAS-CRP), but there was its upward tendency in the second trimester as compared with the beginning of pregnancy. The BASMI did not change significantly (1.3±0.9; 1.8±0.2; 2.1±0.3, respectively, for trimesters). The BASFI increased by the third trimester (3.9±0.7) versus the first trimester (1.4±0.3; p<0.05).In the third trimester, this rise was due to difficulties in performing the actions related to both AS activity and pregnancy (forward bends; questions 1, 2, and 4).According to the trimesters, 31.6, 73.7, and 66.7% of the pregnant women took nonsteroidal anti-inflammatory drugs. The need for glucocorticoids was noted in 22% of patients in the second trimester and in 53% in the third trimester.Conclusion. The clinical activity of AS is increased by the second trimester of pregnancy and remains moderate and high until the end of gestation. The activity of AS at the time of conception can determine the activity of the disease throughout pregnancy. In the third trimester, mechanical back pain becomes concurrent in half of the patients. Functional impairments increase with gestational age, and this is due to both the activity of AS and pregnancy itself in the third trimester.

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Thrombin generation, D-dimer and protein S in uncomplicated pregnancy

Clinical Chemistry and Laboratory Medicine (CCLM) ◽

10.1515/cclm-2014-1030 ◽

2015 ◽

Vol 53 (12) ◽

Cited By ~ 10

Author(s):

Mirjana K. Kovac ◽

Sanja Z. Lalic-Cosic ◽

Jelena M. Dmitrovic ◽

Valentina J. Djordjevic ◽

Dragica P. Radojkovic

Keyword(s):

Pregnant Women ◽

Reference Values ◽

Gestational Age ◽

Protein S ◽

First Trimester ◽

Second Trimester ◽

Third Trimester ◽

The Third ◽

D Dimer ◽

Protein S Activity

AbstractGestational age-specific reference values are essential for the accurate interpretation of haemostatic tests during pregnancy.Our 1-year prospective study included 40 healthy pregnant women with a median age of 30 (range 22–40) years; the subjects were followed in order to establish the gestational age dependent values for endogenous thrombin potential (ETP), D-dimer and protein S (activity and free).During the first trimester 50% of studied women had ETP >100% (reference values out of pregnancy); in the second trimester an ETP over 100% was observed in all women; ETP values remained unchanged during the third trimester. In the first trimester, the median D-dimer concentration of 0.30 mg/L, in the second 0.91 mg/L and in the third of 1.45 mg/L were observed. During the first trimester 14/40 subjects had protein S activity below reference range (<59%, out of pregnancy); the median value of 61.35; interquartile range (IQR) 20.38; in the second 21/37; the median value of 53.1 (IQR 15.65); in the third trimester 28/37 had low level of protein S activity with the median value of 49.0 (IQR 18.8). Free protein S showed a slight decrease from the first trimester; it remained almost stable during the rest of pregnancy, with the equal number of pregnant women with reduced free protein S.Related to the gestational age, a significant increase of ETP and D-dimer, from the second trimester was observed; the decrease of protein S was observed already from the early pregnancy, with more pronounced variability of protein S activity.

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Headaches during pregnancy in women with a prior history of menstrual headaches

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x2005000600006 ◽

2005 ◽

Vol 63 (4) ◽

pp. 934-940 ◽

Cited By ~ 22

Author(s):

Eliana Melhado ◽

Jayme A. Maciel Jr ◽

Carlos A.M. Guerreiro

Keyword(s):

Pregnant Women ◽

International Headache Society ◽

First Trimester ◽

Prior History ◽

Second Trimester ◽

Third Trimester ◽

The Third ◽

Ihs Classification ◽

History Of ◽

Structured Questionnaire

OBJECTIVE: To evaluate the presence of menstrual headaches prior to pregnancy according to the International Headache Society (IHS) classification criteria, 2004, and also study the outcome (frequency and intensity) of these pre-existing headaches during the gestational trimesters. METHOD: This study involved 1,101 pregnant women (12 to 45 years old). A semi-structured questionnaire was used to interview the women during the first, second and third gestational trimesters as well as after delivery. All the interviews were conducted by one of the researchers by applying the IHS Classification (IHSC-2004). RESULTS: A 1,029 women out of the 1,101 women interviewed presented headaches prior to gestation, which made it possible to study headaches in 993 women during the gestational trimesters. Menstrually related headaches were presented by 360 of the 993 women. Migraine was reported by 332/360 women (92.22%) with menstrual headaches and 516/633 women (81.51%) without menstrual headaches, respectively, prior to gestation. The majority of the women with menstrual migraine presented a headache improvement or disappearance during gestation (62.22% during the first trimester; 74.17% during the second trimester; 77.78% during the third trimester). CONCLUSION: Most of the pregnant women with menstrual or non-menstrual headaches prior to gestation presented migraine, which either improved or disappeared during pregnancy. Women who suffered from non-menstrual headaches improved during pregnancy but not as much as women with menstrual headaches.

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Trends in Heart Rate and Heart Rate Variability during Pregnancy and Three Months Postpartum: Continuous Monitoring in a Free-Living Context (Preprint)

10.2196/preprints.33458 ◽

2021 ◽

Author(s):

Fatemeh Sarhaddi ◽

Iman Azimi ◽

Anna Axelin ◽

Hannakaisa Niela-Vilen ◽

Pasi Liljeberg ◽

...

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Pregnant Women ◽

Time Domain ◽

Second Trimester ◽

Third Trimester ◽

Non Invasive ◽

The Third ◽

Invasive Method ◽

Frequency Power

BACKGROUND Heart rate variability (HRV) is a non-invasive method reflecting autonomic nervous system (ANS) regulations. Altered HRV is associated with adverse mental or physical health complications. ANS also has a central role in physiological adaption during pregnancy causing normal changes in HRV. OBJECTIVE Assessing trends in heart rate (HR) and HRV parameters as a non-invasive method for remote maternal health monitoring during pregnancy and three months postpartum. METHODS Fifty-eight pregnant women were monitored using an Internet-of-Things (IoT)-based remote monitoring system during pregnancy and 3-months postpartum. Pregnant women were asked to continuously wear Gear sport smartwatch to monitor their HR and HRV. In addition, a cross-platform mobile application was utilized for collecting pregnancy-related information. The trends of HR and HRV parameters were extracted using reliable data. We also analyzed the trends of normalized HRV parameters based on HR to remove the effect of HR changes on HRV trends. Finally, we exploited hierarchical linear mixed models to analyze the trends of HR, HRV, and normalized HRV parameters. RESULTS HR increased significantly during the second trimester (P<.001) and decreased significantly during the third trimester (P<.01). Time-domain HRV parameters, average normal interbeat intervals (AVNN), standard deviation of normal interbeat intervals (SDNN), root mean square of the successive difference of normal interbeat intervals (RMSSD), normalized SDNN (nSDNN), and normalized RMSSD (nRMSSD) decreased significantly during the second trimester (P<.001) then increased significantly during the third trimester (P<.01). Some of the frequency domain parameters, low-frequency power (LF), high-frequency power (HF), and normalized HF (nHF) decreased significantly during the second trimester (P<.01), and HF increased significantly during the third trimester (P<.01). In the postpartum period, nRMSSD decreased (P<.05), and the LF to HF ratio (LF/HF) increased significantly (P<.01). CONCLUSIONS Our study showed that HR increased and HRV parameters decreased as the pregnancy proceeded, and the values returned to normal after the delivery. Moreover, our results show that HR started to decrease while time-domain HRV parameters and HF started to increase during the third trimester. Our results also demonstrate the possibility of continuous HRV monitoring in everyday life settings.

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Infliximab clearance decreases in the second and third trimesters of pregnancy in inflammatory bowel disease

United European Gastroenterology Journal ◽

10.1177/2050640620964619 ◽

2020 ◽

pp. 205064062096461

Author(s):

Ana-Marija Grišić ◽

Maria Dorn-Rasmussen ◽

Bella Ungar ◽

Jørn Brynskov ◽

Johan F K F Ilvemark ◽

...

Keyword(s):

Inflammatory Bowel Disease ◽

Bowel Disease ◽

First Trimester ◽

Interquartile Range ◽

Therapeutic Drug ◽

Population Pharmacokinetic ◽

Second Trimester ◽

Third Trimester ◽

The Third ◽

Inflammatory Bowel

Background Infliximab therapy during pregnancy in inflammatory bowel disease is challenged by a dilemma between maintaining adequate maternal disease control while minimizing fetal infliximab exposure. We investigated the effects of pregnancy on infliximab pharmacokinetics. Methods The study population comprised 23 retrospectively identified pregnancies. Patients with inflammatory bowel disease were generally in clinical remission at pregnancy conception (74%) and received steady infliximab maintenance therapy (5 mg/kg q8w n = 17; q6w n = 4; q10w n = 1; 10 mg/kg q8w n = 1). Trough blood samples had been obtained in the same patients prior to pregnancy ( n = 119), the first trimester ( n = 16), second trimester ( n = 18), third trimester ( n = 7), and post-pregnancy ( n = 12). Data were analyzed using nonlinear mixed-effects population pharmacokinetic modelling. Results Dose-normalized infliximab concentrations were significantly higher during the second trimester (median 15 µg/mL/kg, interquartile range 10–21) compared to pre-pregnancy (7, 2–12; p = 0.003), the first trimester (9, 1–12; p = 0.04), or post-pregnancy (6, interquartile range 3–11; p > 0.05) in patients with inflammatory bowel disease. Similar trends were observed in the third trimester (13, 7–36; p > 0.05). A one-compartment model with linear elimination described the pharmacokinetics of infliximab (volume of distribution = 18.2 L; clearance 0.61 L/day). Maternal infliximab exposure was influenced by the second and third trimester of pregnancy and anti-infliximab antibodies, and not by pregnancy-imposed physiological changes in, for example, body weight or albumin. Infliximab clearance decreased significantly during the second and third trimesters by up to 15% as compared to pre- and post-pregnancy and the first trimester. The increased maternal infliximab exposure was weakly associated with lowered clinical disease activity. Pharmacokinetic model simulations of virtual patients indicated the increased maternal infliximab trough concentrations imposed by pregnancy will not completely counteract the decrease in infliximab concentration if therapy is paused in the third trimester. Conclusion Infliximab clearance decreases significantly in the second and third trimesters, leading to increasing maternal infliximab concentrations in any given regimen. Maternal infliximab levels may thus be maintained as constant in a de-intensified regimen by therapeutic drug monitoring guidance in inflammatory bowel disease.

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Discovery of metabolic biomarkers for gestational diabetes mellitus in a Chinese population

10.21203/rs.3.rs-109665/v2 ◽

2021 ◽

Author(s):

Wenqian Lu ◽

Mingjuan Luo ◽

Xiangnan Fang ◽

Rong Zhang ◽

Mengyang Tang ◽

...

Keyword(s):

Diabetes Mellitus ◽

Logistic Regression ◽

Gestational Diabetes ◽

Pregnant Women ◽

Regression Models ◽

Second Trimester ◽

Third Trimester ◽

Logistic Regression Models ◽

The Third ◽

Clinical Indices

Abstract Background: Gestational diabetes mellitus (GDM), one of the most common pregnancy complications, can lead to morbidity and mortality in both the mother and the infant. Metabolomics has provided new insights into the pathology of GDM and systemic analysis of GDM with metabolites is required for providing more clues for GDM diagnosis and mechanism research. This study aims to reveal metabolic differences between normal pregnant women and GDM patients in the second- and third-trimester stages and to confirm the clinical relevance of these new findings.Methods: Metabolites were quantitated with the serum samples of 200 healthy pregnant women and 200 GDM women in the second trimester, 199 normal controls, and 199 GDM patients in the third trimester. Both function and pathway analyses were applied to explore biological roles involved in the two sets of metabolites. Then the trimester stage-specific GDM metabolite biomarkers were identified by combining machine learning approaches, and the logistic regression models were constructed to evaluate predictive efficiency. Finally, the weighted gene co-expression network analysis method was used to further capture the associations between metabolite modules with biomarkers and clinical indices. Results: This study revealed that 57 differentially expressed metabolites (DEMs) were discovered in the second-trimester group, among which the most significant one was 3-methyl-2-oxovaleric acid. Similarly, 72 DEMs were found in the third-trimester group, and the most significant metabolites were ketoleucine and alpha-ketoisovaleric acid. These DEMs were mainly involved in the metabolism pathway of amino acids, fatty acids and bile acids. The logistic regression models for selected metabolite biomarkers achieved the area under the curve values of 0.807 and 0.81 for the second- and third-trimester groups. Furthermore, significant associations were found between DEMs/biomarkers and GDM-related indices. Conclusions: Metabolic differences between healthy pregnant women and GDM patients were found. Associations between biomarkers and clinical indices were also investigated, which may provide insights into pathology of GDM.

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The Effect of Preserving Pregnancy in Cervical Cancer Diagnosed During Pregnancy: A Retrospective Study

10.21203/rs.3.rs-507502/v1 ◽

2021 ◽

Author(s):

Zuoxi He ◽

Chuan Xie ◽

Xiaorong Qi ◽

Zhengjun Hu ◽

Yuedong He

Keyword(s):

Cervical Cancer ◽

Rare Event ◽

Oncologic Outcome ◽

First Trimester ◽

Second Trimester ◽

Third Trimester ◽

Delayed Treatment ◽

The Third ◽

Survival Difference ◽

Estimated Blood Loss

Abstract ObjectiveCervical cancer diagnosed during pregnancy is a rare event, and data regarding efficacy of cancer treatment during pregnancy is limited. This study aimed to assess the safety of continuation of the pregnancy for mother and fetus when concomitantly diagnosed with cervical cancer.MethodsThis study retrospectively analyzed all cervical cancer patients diagnosed while pregnant or immediately postpartum, inclusive from Jan 2010 to June 2019 at our institute. Patient clinical details and follow-up were obtained from hospital records. ResultsThe study comprised 40 patients with clinical cancer stages of ⅠA1 (1/40, 2.5%); ⅠB1 (15/40, 37.5%); IB2 (10/40, 25%); ⅡA (12/40, 30%); and ⅡB (2/40, 5%). There were 38 patients diagnosed during pregnancy, and 2 diagnosed in the postpartum period. Of the 38 patients, 17 were diagnosed in the first trimester, 13 in the second trimester, and 8 in the third trimester. Ten of 38 patients (26.3%) continued their pregnancy after learning of their diagnosis; 7 (70%) in the third trimester and 3 (30%) in the second trimester. The mean time from diagnosis to surgery in the patients who continued their pregnancy was 52.7 days, which was statistically significantly greater than the termination of pregnancy group (52.7 vs 16.3 days, P < 0.01). Notably, there was no survival difference between the 2 groups (100% vs 90.91%, P =0.54), and none of the pregnant women who ultimately died had delayed treatment due to pregnancy. Similarly, the surgical estimated blood loss and operative duration comparing the 2 groups were not significantly different. ConclusionsIn the present study, the gestational age of pregnancy at the time of initial diagnosis of cervical cancer was an important determinant in the disease management. Continuation of the pregnancy when diagnosed with cervical cancer did not affect the oncologic outcome of the mother nor increase either surgical or obstetric complications. Additionally, the use of neoadjuvant chemotherapy did not threaten the health of the fetus. These results may be useful in counseling patients facing the diagnosis of cervical cancer during pregnancy.

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