Asymptomatic short cervix and threatened preterm labor: A comparative study on perinatal outcomes.

OBJECTIVE: To determine the rate of delivery within 15 days of admission among patients with an asymptomatic short cervix (ASC) compared to those admitted for threatened preterm labor (TPL). MATERIAL AND METHODS: This retrospective study conducted in a tertiary maternity hospital, included patients with a singleton pregnancy admitted with a cervical length of less than 25 mm between 24 and 34 weeks. The population was divided into two groups, patients with ASC (i.e., with no contractions at admission) and patients with TPL. The primary outcome was the delivery rate within 15 days of admission. Secondary outcomes included gestational age at delivery, preterm delivery rate before 37°/7 weeks and before 34°/7 weeks, admission to delivery interval, 5 min Apgar score and transfer to neonatal intensive care unit rate. The characteristics of the two groups and the primary and secondary outcomes were compared between the two groups using univariate analysis. Two subgroup analysis were performed, one restricted to patients with a mildly modified CL (15 ≤ CL < 25 mm), and one excluding patients at high risk of preterm birth. RESULTS: Among the 247 included patients, 136 (55.1 %) had TPL, and 111 (44.9 %) ASC. There were no significant differences in the rate of patient who delivered within 15 days of admission between the groups, 13.2 % in the TPL group vs 8.0 % in the ASC group (p = 0.22). Patients in the TPL group had a significantly higher frequency of delivery before 34 weeks compared to those in the ASC group (19.9 % versus 9.0 %, p = 0.02 This finding persisted in the subgroup analysis excluding patients at high risk of preterm birth (16.5 % in the TPL subgroup vs. 6.9 % in the ASC subgroup, p = 0.04). There were no significant differences in the rates of preterm delivery before 37 weeks, the admission-to-delivery interval, or neonatal outcomes between the two groups or within the subgroup analyses. CONCLUSION: The frequency of delivery within 15 days of admission was not statistically different between patients with an asymptomatic short cervix and those with TPL. Nevertheless, these asymptomatic patients delivered significantly later and less frequently before 34 weeks, with only one in ten requiring corticosteroids.

Application of autoantibody in the diagnosis and treatment of threatened preterm labor / 实用医学杂志

Objective To investigate the correlation between serum levels of antiphospholipid antibody(aPL)(ACA-IgG,ACA-IgM,β2-GPI-IgG,β2-GPI-IgM),LAC,ds-DNA,and ANA and preterm labor with pre-maturity,and to analyze the prediction of preterm labor with the combination of age,week of gestation,history of delivery,and history of miscarriage,so as to provide references for the prevention and treatment of preterm la-bor and to promote eugenics.Methods Through a retrospective study design,43 pregnant women with preterm la-bor with preeclampsia diagnosed and treated at Guangdong Provincial People's Hospital from June 2018 to Decem-ber 2020 were collected as a case group,and 47 healthy pregnant women of the same period and similar gestational age were randomly selected as a control group.aPL(ACA-IgG,ACA-IgM,β2-GPI-IgG,β2-GPI-IgM)and ds-DNA were detected by enzyme immunoassay(ELISA)using an enzyme immunoassay instrument,lupus anticoagulant(LAC)in plasma was detected by coagulometer,and ANA was detected by indirect immunofluorescence using an immunofluorescence analyzer,and the application of SPSS 24.0 software was used to statistically analyze the gen-eral information and laboratory test data.the age of the patients was combined,gestational week,birth history,miscarriage history and other general information,logistic regression analysis was performed to find the indepen-dent influencing factors related to preterm labor;the analysis was performed by using the subjects'work charac-teristic curve(ROC curve)to determine the area under the ROC curve(AUC),the best predictive value,sensi-tivity and specificity,and to analyze the predictive value of preterm labor with preterm labor.Results In this study,the pregnant women in the group of pregnant women with preterm labor with preeclampsia were aged 27～40 years,with a mean age of(29.93±3.91)years,and the gestational weeks at the time of blood collection were 27-36 weeks,with a mean gestational week of(31.96±2.35)weeks,while the pregnant women in the healthy control group during the same time period were aged 25～40 years,with a mean age of(30.74±3.44)years,and the gestational weeks at the time of blood collection were 28～36 weeks,with a mean gestational week of(32.84±2.13)weeks.In the same period,healthy control group pregnant women were aged 25～40 years,with a mean age of(30.74±3.44)years,and were 28～36 weeks pregnant at the time of blood collection.The β2-GPI-IgM level of pregnant women in the case group with preterm labor was significantly higher than that of pregnant women in the healthy control group at the same time,with statistically significant differences(P<0.05),while the differences in the levels of β2-GPI-IgG,ds-DNA,and LAC between the two groups were not statistically significant(P>0.05).The analysis of the ROC curves showed that the AUC of β2-GPI-IgM was 0.642(P<0.05),which was the highest in the preterm group,and the AUC was 0.642(P<0.05).0.05),which was an independent influencing factor of preterm labor;age,gestational week,labor history,and miscarriage history could not be used as independent in-fluencing factors of preterm labor.Conclusion β2-GPI-IgM is associated with threatened preterm labor,it can be used as a predictor of threatened preterm labor,and has clinical utility in the monitoring of threatened preterm labor in pregnant women.

Prediction of Preterm Delivery Using Serum Ischemia Modified Albumin, Biglycan, and Decorin Levels in Women with Threatened Preterm Labor / Previsão de parto prematuro usando albumina modificada por isquemia sérica, biglicano e níveis de decorina em mulheres com ameaça de trabalho de parto prematuro

Abstract Objective The serum ischemia modified albumin (IMA), biglycan, and decorin levels of pregnant women who were hospitalized for threatened preterm labor were measured. Methods Fifty-one consecutive pregnant women with a single pregnancy between the 24th and 36th weeks with a diagnosis of threatened preterm labor were included in the present prospective cohort study. Results As a result of multivariate logistic regression analysis for predicting preterm delivery within 24 hours, 48 hours, 7 days, 14 days, ≤ 35 gestational weeks, and ≤ 37 gestational weeks after admission, area under the curve (AUC) (95% confidence interval [CI[) values were 0.95 (0.89-1.00), 0.93 (0.86-0.99), 0.91 (0.83-0.98), 0.92 (0.85-0.99), 0.82 (0.69-0.96), and 0.89 (0.80-0.98), respectively. In the present study, IMA and biglycan levels were found to be higher and decorin levels lower in women admitted to the hospital with threatened preterm labor and who gave preterm birth within 48 hours compared with those who gave birth after 48 hours. Conclusion In pregnant women admitted to the hospital with threatened preterm labor, the prediction preterm delivery of the combined model created by adding IMA, decorin, and biglycan in addition to the TVS CL measurement was higher than the TVS CL measurement alone. Clinical trial registration The present trial was registered at ClinicalTrials.gov, number NCT04451928.

Resumo Objetivo Medir os níveis séricos de albumina modificada por isquemia (IMA), biglicano e decorina de gestantes hospitalizadas por ameaça de parto prematuro. Métodos Cinquenta e uma mulheres grávidas consecutivas com uma única gravidez entre a 24ᵃ e a 36ᵃ semanas com diagnóstico de ameaça de trabalho de parto prematuro foram incluídas no presente estudo de corte prospectivo. Resultados Como resultado da análise de regressão logística multivariada para prever parto prematuro dentro de 24 horas, 48 horas, 7 dias, 14 dias, ≤ 35 semanas gestacionais e ≤ 37 semanas gestacionais após a admissão, área sob a curva (AUC) (95% de confiança os valores de intervalo [CI[) foram 0,95 (0,89-1,00), 0,93 (0,86-0,99), 0,91 (0,83-0,98), 0,92 (0,85-0,99), 0,82 (0,69-0,96) e 0,89 (0,80-0,98), respectivamente. No presente estudo, os níveis de IMA e biglican foram maiores e os níveis de decorin menores em mulheres admitidas no hospital com ameaça de trabalho de parto prematuro e que tiveram parto prematuro em 48 horas em comparação com aquelas que deram à luz após 48 horas. Conclusão Em gestantes admitidas no hospital com ameaça de trabalho de parto prematuro, a predição de parto prematuro do modelo combinado criado pela adição de IMA, decorin e biglican, além da medição do TVS CL, foi maior do que a medição do TVS CL isoladamente. Registro do ensaio clínico O presente ensaio foi registrado em ClinicalTrials.gov, número NCT04451928.

Longitud cervical o puntaje de bishop en la predicción de parto pretérmino inminente en pacientes sintomáticas / Cervical length or bishop score in prediction of imminent preterm delivery in symptomatic patients

RESUMEN OBJETIVO: Comparar la longitud cervical con el puntaje de Bishop en la predicción de parto pretérmino inminente en pacientes sintomáticas. MÉTODOS: Se seleccionaron mujeres con embarazos simples de 24 - 35 semanas, con amenaza de parto pretérmino y membranas integras. Antes del inicio de cualquier tratamiento, todas fueron sometidas a examen digital del cuello uterino y determinación ecográfica transvaginal de la longitud cervical. La principal variable de estudio fue la frecuencia de parto inminente (en los 7 días siguientes a la evaluación). Se evaluaron las características generales, puntaje de Bishop y valores de la longitud cervical RESULTADOS: Fueron seleccionadas 481 mujeres, 119 participantes presentaron parto pretérmino inminente (grupo A) y 362 pacientes presentaron partos más allá de los 7 días (grupo B). El intervalo entre la evaluación y el parto fue de 4,3 +/- 1,6 días en el grupo A y 56,3 +/- 27,2 días en el grupo B (p < 0,0001). Las pacientes del grupo A tenían valores más bajos de longitud cervical comparado con las pacientes del grupo B (p < 0,0001). Este grupo también presentó valores más elevados de puntaje de Bishop (p < 0,0001). La longitud cervical tenía un área bajo la curva mayor para la predicción (0,972, intervalo de confianza 95%, 0,772 - 1,000) comparado con el puntaje de Bisho (0,825, intervalo de confianza 95%, 0,783 - 0,870; p = 0,0137). CONCLUSIÓN: La longitud cervical es más útil en la predicción de parto pretérmino inminente en pacientes sintomáticas comparado con el puntaje de Bishop.

ABSTRACT OBJECTIVE: To compare the cervical length with Bishop score in prediction of imminent preterm delivery in symptomatic patients. METHODS: Women with single pregnancies of 24-35 weeks were selected, with the diagnosis of threatened preterm labor and intact membranes. Before the start of any treatment, all were submitted to the cervical digital examination and transvaginal ultrasound determination of cervical length. The main variable of the study was the frequency of imminent delivery (in the 7 days following evaluation). General characteristics, Bishop score, and cervical length values were evaluated. RESULTS: A total of 481 women were selected, 119 patients presented imminent delivery (group A) and 362 patients delivered after 7 days (group B). the interval between evaluation and delivery was 4.3 +/- 1.6 days in group A and 56.3 +/- 27.2 days in group B (p <0.0001). Patients in group A had lower values of cervical length compared with patients in group B (p <0.0001). This group also presented higher values of Bishop score (p <0.0001). Cervical length had a mayor area under for prediction (0.972, 95% confidence interval, 0.772-1.000) compared with Bishop score (0.825, 95% confidence interval, 0.783-0.870, p = 0.0137). CONCLUSION: Cervical length is more useful in the prediction of imminent preterm delivery in symptomatic patients compared to the Bishop score.n.

Practice patterns in the management of threatened preterm labor in Korea: A multicenter retrospective study

OBJECTIVE: This study aimed to examine clinical practice patterns in the management of pregnant women admitted with threatened preterm labor (TPL) in Korea. METHODS: Data from women admitted with a diagnosis of TPL were collected from 22 hospitals. TPL was defined as regular uterine contractions with or without other symptoms such as pelvic pressure, backache, increased vaginal discharge, menstrual-like cramps, bleeding/show and cervical changes. Data on general patient information, clinical characteristics at admission, use of tocolytics, antibiotics, and corticosteroids, and pregnancy outcomes were collected using an online data collections system. RESULTS: A total of 947 women with TPL were enrolled. First-line tocolysis was administered to 822 (86.8%) patients. As a first-line tocolysis, beta-agonists were used most frequently (510/822, 62.0%), followed by magnesium sulfate (183/822, 22.3%), calcium channel blockers (91/822, 11.1%), and atosiban (38/822, 4.6%). Of the 822 women with first-line tocolysis, second-line tocolysis were required in 364 (44.3%). Of 364 with second-line, 199 had third-line tocolysis (37.4%). Antibiotics were administered to 29.9% of patients (284/947) with single (215, 22.7%), dual (26, 2.7%), and triple combinations (43, 4.5%). Corticosteroids were administered to 420 (44.4%) patients. Betamethasone was administered to 298 patients (71.0%), and dexamethasone was administered to 122 patients (29.0%). CONCLUSION: Practice patterns in the management of TPL in Korea were quite various. It is needed to develop standardized practice guidelines for TPL management.

Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazada con amenaza de parto pretérmino tratada con nifedipina oral / Doppler of uterine, umbilical and middle cerebral fetal arteries in pregnant women with preterm labor treated with oral nifedipine

Determinar las modificaciones en Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazadas con amenaza de parto pretérmino tratada con nifedipina oral como tocolítico. Se seleccionaron 50 pacientes con diagnóstico de amenaza de parto pretérmino. Las pacientes recibieron nifedipina a una dosis inicial de 30 mg sublinguales seguida por una dosis oral de 20 mg dos a cuatro veces al día. La dosis máxima fue de 120 mg cada 24 horas. Se midieron los índices de pulsatilidad, índice de resistencia y relación de flujo sistólico / diastólica de las arterias uterinas, umbilical y cerebral media fetal antes y después del tratamiento. Servicio de Ginecología y Obstetricia. Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. La edad materna promedio al inicio del estudio fue de 26,9 ± 6,9 años y la edad gestacional promedio fue de 30,3 ± 2,6 semanas. La duración promedio del tratamiento fue de 4,8 ± 1,5 días. No se encontraron diferencias estadísticamente significativas en los valores promedio de la frecuencia cardíaca materna y fetal, presión arterial sistólica, presión arterial diastólica antes y después del tratamiento con nifedipina oral (P = ns). No se encontraron diferencias significativas en los índices de pulsatilidad, índice de resistencia y relación de flujo sistólico / diastólica en las arterias uterinas, umbilical y cerebral media fetal antes y después del tratamiento con nifedipina oral (P = ns). El uso de nifedipina oral como tocolítico no produce modificaciones significativas en las mediciones Doppler de las arterias uterinas, umbilical y cerebral media fetal en embarazadas con amenaza de parto pretérmino

To determine modifications of Doppler of uterine, umbilical and fetal middle cerebral arteries in pregnant women with threatened pre-term labor treated with oral nifedipine as tocolytic agent. Fifty patients with diagnosis of threatened pre-term labor were selected. Patients received an initial dose of 30 mg of sub lingual nifedipine followed by an oral dose of 20 mg twice to four times a day. A maximum dosage was of 120 mg each 24 hours. The pulsatility index, resistance index and systolic/diastolic blood flow ratio of uterine, umbilical and fetal middle cerebral arteries were measured before treatment and after treatment. Servicio de Ginecologia y Obstetricia. Hospital Central "Dr. Urquinaona". Maracaibo, Estado Zulia. Maternal mean age at beginning of study was 26.9 ± 6.9 years-old and gestational mean age was 30.3 ± 2.6 weeks. Mean duration of treatment was 4.8 ± 1.5 days. There were not found significant differences in mean values of maternal and fetal heart rate, systolic blood pressure and diastolic blood pressure before and after treatment with oral nifedipine (p = ns). There were not found significant differences in pulsatility index, resistance index and systolic/diastolic blood flow ratio of uterine, umbilical and fetal middle cerebral arteries before and after treatment (p = ns). The use of oral nifedipine as tocolytic agent did not produce significant modifications in Doppler measurements of uterine, umbilical and fetal middle cerebral arteries in pregnant women with threatened pre-term labor

Tocólisis con clorhidrato de isoxuprina o nifedipina en la amenaza de parto pretérmino / Tocolysis with isoxuprine hydrochloride or nifedipine in preterm labor

Comparar la eficacia del clorhidrato de isoxuprina o la nifedipina en la tocólisis de la amenaza de parto pretérmino. Se seleccionaron 82 pacientes con edad gestacional entre 24 y 34 semanas y diagnóstico de amenaza de parto pretérmino. Las pacientes se dividieron al azar en 2 grupos para recibir clorhidrato de isoxuprina (grupo A) o nifedipina (grupo B). Se determinaron el tiempo de cese de las contracciones, tensión arterial materna, concentraciones de glucosa y efectos adversos maternos. Maternidad "Dr. Nerio Belloso", Hospital Central "Dr. Urquinaona", Maracaibo. Estado Zulia. Se logró una tocólisis efectiva en las primeras 24 horas en 61,0 por ciento y 70,7 por ciento de las pacientes del grupo A y B, respectivamente (P = ns). Después de 7 días de tratamiento, 36,6 por ciento de las pacientes en el grupo A y 31,7 por ciento de las pacientes en el grupo B aun permanecían sin contracciones (P = ns). Se logró un retraso del parto hasta las 34 semanas o más en 26,8 por ciento y 29,3 por ciento de las pacientes de los grupos A y B, respectivamente. En el grupo de pacientes tratadas con clorhidrato de isoxuprina se observó un aumento significativo de las concentraciones séricas de glucosa (P < 0,001). Los efectos adversos maternos fueron significativamente más frecuentes en el grupo de clorhidrato de isoxuprina después de 2 y 24 horas de tratamiento (P < 0,05). La nifedipina es igual de efectiva que el clorhidrato de isoxuprina en la tocólisis de la amenaza de parto pretérmino y produce menos efectos adversos

To compare the efficacy of isoxuprine clorhidrate or nifedipine in tocolysis of threatened preterm labor. 82 patients with a gestational age between 24 and 34 weeks and threatened preterm labor diagnosis were selected. Patients were randomly divided in 2 groups to receive isoxuprine clorhidrate (group A) or nifedipine (group B). Time of cease of contractions, maternal blood pressure, glucose concentrations and maternal adverse effects were determined. Maternidad "Dr. Nerio Belloso", Hospital Central "Dr. Urquinaona", Maracaibo. Estado Zulia. An effective tocolysis was obtained within 24 hours in 61.0 percent and 70.7 percent for patients in group A and B, respectively (P = ns). After 7 days of treatment, 36.6 percent of patients in group A and 31,7 percent of patients in group B were still without contractions (P = ns). A delay in labor till 34 weeks or more was made in 26.8. percent and 29.3 percent of patients in group A and B, respectively. In the group of patients treated with isoxuprine clorhidrate a significant raise of glucose concentrations was observed (P < 0.001). Maternal adverse effects were significant more frequent in isoxuprine clorhidrate group after 2 and 24 hours of treatment (P < 0,05). Nifedipine has a similar effectivity than isoxuprine clorhidrate for tocolysis in threatened preterm labor and produces less adverse effects

Correlation of maternal plasma placental leucine aminopepticlase and interleukin-6 with spontaneous preterm labor / 上海第二医科大学学报

0.05).It was revealed by ROC curve analysis that P-LAP≤38.12 U/L and IL-6≥3.40 pg/mL could be adopted as criteria to predict the inevitable preterm labor,and the Youden's index of the combination use of the parameters of P-LAP and IL-6 was significantly higher than that of the single use of each parameter(P