Anna Suy

Increased risk of pre-eclampsia and fetal death in Hiv-infected pregnant women receiving highly active antiretroviral therapy

Background:Pre-eclampsia and/or fetal death have increased sharply in HIV-infected pregnant women receiving HAART. Methods:The occurrence of pre-eclampsia or fetal death was analysed in women who delivered after at least 22 weeks of gestation for all women (January 2001 until July 2003) and for HIV-infected women (November 1985 until July 2003). Results:In 2001, 2002 and 2003, the rates per 1000 deliveries of pre-eclampsia and fetal death, respectively, remained stable in all pregnant women at 25.4, 31.9 and 27.7 (P = 0.48) and 4.8, 5.8, and 5.0 (P = 0.89) (n = 8768). In 1985–2000 (n = 390) to 2001–2003 (n = 82), rates per 1000 deliveries in HIV-infected women rose from 0.0 to 109.8 (P < 0.001) for pre-eclampsia and from 7.7 to 61.0 (P < 0.001) for fetal death. In all pregnant women, factors associated with pre-eclampsia or fetal death were multiple gestation [adjusted odds ratio (OR) 3.6; 95% confidence interval (CI), 2.3–5.6; P < 0.001], HIV infection (adjusted OR, 4.9; 95% CI, 2.4–10.1; P < 0.001), multiparity (adjusted OR, 0.76; 95% CI, 0.58–0.98; P = 0.040) and tobacco smoking (adjusted OR, 0.65; 95% CI, 0.46–0.90; P = 0.010). The use of HAART prior to pregnancy (adjusted OR, 5.6; 95% CI, 1.7–18.1; P = 0.004) and tobacco smoking (adjusted OR, 0.183; 95% CI, 0.054–0.627; P = 0.007) were risk factors in HIV-infected women. Conclusions:HIV infection treated with HAART prior to pregnancy was associated with a significantly higher risk for pre-eclampsia and fetal death.

Prolonged Zika Virus Viremia during Pregnancy

The presence of Zika virus in the blood may be prolonged during pregnancy. In this letter, Zika virus remained detectable for more than 3 months in a pregnant woman.

Maternal and foetal angiogenic imbalance in congenital heart defects

AIMS Animal models showed that angiogenesis is related to abnormal heart development. Our objectives were to ascertain whether a relationship exists between congenital heart defects (CHDs) and angiogenic/anti-angiogenic imbalance in maternal and foetal blood and study the expression of angiogenic factors in the foetal heart. METHODS AND RESULTS Maternal and cord blood placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin (sEng) were compared in 65 cases of CHD and 204 normal controls. Angiogenic factor expression and markers of hypoxia were measured in heart tissue from 23 CHD foetuses and 8 controls. In the CHD group, compared with controls, plasma PlGF levels were significantly lower (367 ± 33 vs. 566 ± 26 pg/mL; P < 0.0001) and sFlt-1 significantly higher (2726 ± 450 vs. 1971 ± 130 pg/mL, P = 0.0438). Foetuses with CHD had higher cord plasma sFlt-1 (442 ± 76 vs. 274 ± 26 pg/mL; P = 0.0285) and sEng (6.76 ± 0.42 vs. 4.99 ± 0.49 ng/mL, P = 0.0041) levels. Expression of vascular endothelial growth factor (VEGF), sFlt-1, markers of chronic hypoxia, and antioxidant activity were significantly higher in heart tissue from CHD foetuses compared with normal hearts (VEGF, 1.59-fold; sFlt-1, 1.92-fold; hypoxia inducible factor (HIF)-2α, 1.45-fold; HO-1, 1.62-fold; SOD1, 1.31-fold). CONCLUSION An intrinsically angiogenic impairment exists in CHD that appears to be present in both the maternal and foetal circulation and foetal heart. Our data suggest that an imbalance of angiogenic-antiangiogenic factors is associated with developmental defects of the human heart.

Current guidelines on management of HIV-infected pregnant women: Impact on mode of delivery

OBJECTIVE To evaluate acceptance, feasibility and difficulties in the application of a policy of vaginal delivery in selected cases in HIV-infected women. STUDY DESIGN HIV-infected women delivering March 2002 to December 2004 and enrolled in a prospective observational study in a University hospital tertiary care center were included. A vaginal delivery was not considered if labor before 36 weeks of pregnancy, preterm premature rupture of membranes, on non-highly active antiretroviral therapy (HAART) or viral load >1000copies/mL. Main outcome measures were mode of delivery, prematurity, acceptance of vaginal delivery and mother-to-child transmission of HIV infection. RESULTS The study included 91 pregnancies, with a total of 95 fetuses. Eighty percent (n=73) of women knew their HIV infection status before becoming pregnant and 57 (63%) were on HAART at conception. Median gestational age at delivery was 37 weeks (range 22-41). Twelve women delivered a live-born before 36 weeks, all with a caesarean section. Among 74 women who reached 36 weeks gestation, 47 (64%) met the pre-established criteria for vaginal delivery, of whom 21 (45%) delivered vaginally. The most common reason for not having a vaginal delivery was the womans request for a caesarean section. No cases of HIV vertical transmission occurred (0/90, 95% CI 0-4.02%). CONCLUSION Recommending vaginal delivery among HIV-infected women in selected cases was well accepted, particularly once the policy became established. Nevertheless, a high proportion of HIV-infected women will continue to require caesarean section delivery.

Premature rupture of membranes before 34 weeks managed expectantly: maternal and perinatal outcomes in singletons

Objectives: To ascertain the risk factors for imminent delivery and infection in pregnant women with premature rupture of membranes (PPROM) before 34 weeks of gestation, evaluate maternal and fetal outcomes and identify obstetric factors for determining which patients meet the criteria for home follow-up. Methods: Medical charts of all women with PPROM admitted to the Vall d’Hebron Hospital (HVH) between January 2006 and December 2010 were retrospectively reviewed. Results: During the study period, 216 women were admitted with a diagnosis of PPROM <34 weeks of gestation with a singleton, live, structurally-normal fetus. Mean gestational age at delivery was 31 weeks. Sixty-two patients (28.7%) delivered before 28 weeks and 76 of the infants (35.2%) had birth weight <1,500 g. Overall, 202 infants (93.5%) survived to be discharged home. On stratifying by gestational age at PPROM diagnosis, prognosis was better when PPROM occurred near to term. Gestational age at delivery was increased in pregnant women with no oligohydramnios, no shortened cervix and with negative endocervical and vaginal cultures at PPROM diagnosis (33 weeks of gestation) vs. pregnant women with positive cultures at admission (27 weeks), oligohydramnios at admission (28 weeks) and shortened cervix (26 weeks). This difference was statistically significant (p = 0.005). Conclusions: Protective factors for PPROM could be normal AFI, cervical length >25 mm and negative cultures at PPROM diagnosis. These factors could permit home follow-up of this group of patients.

ReviewZika feverFiebre del Zika

Zika fever is an arboviral systemic disease that has recently become a public health challenge of global concern after its spread through the Americas. This review highlights the current understanding on Zika virus epidemiology, its routes of transmission, clinical manifestations, diagnostic tests, and the current management, prevention and control strategies. It also delves the association between Zika infection and complications, such as microencephaly or Guillem-Barré syndrome.Zika fever is an arboviral systemic disease that has recently become a public health challenge of global concern after its spread through the Americas. This review highlights the current understanding on Zika virus epidemiology, its routes of transmission, clinical manifestations, diagnostic tests, and the current management, prevention and control strategies. It also delves the association between zika infection and complications, such as microencephaly or Guillem-Barre syndrome.

Predictors of obstetric complications in women with heart disease

Abstract Objectives: The objective of this study is to evaluate obstetric outcomes in women with heart disease and determine whether current multidisciplinary management approaches adversely affect the mother, the neonate, or both. Also to compare the accuracy of several risk scores (RS) including the modified World Health Organization classification (mWHO) and CARPREG to predict obstetric and neonatal complications and to study the addition value of Uteroplacental-Doppler flow (UDF) parameters to predict obstetric complications. Methods: A prospective cohort study examined outcomes in women with heart disease (HD), the majority of whom had corrective surgery and delivered between January 2007 and March 2012. Results: One hundred and seventy-four patients with 179 pregnancies were included in the study. Obstetric complications, including premature labor, arose in 87 patients (48.6%). Neonatal complications were observed in 11 cases (7%). On multivariate analysis, maternal heart disease was predictive of adverse perinatal events (46 cases, 25.7%) and mode of delivery (Thierry’s spatula) of third- or fourth-degree perineal tears (six cases, 3.2%). mWHO classification predicted obstetric complications (p = 0.0001) better than the CARPREG study. Impaired UDF (uterine artery pulsatility index-20 weeks and umbilical artery pulsatility index-32 weeks in HD versus healthy women: 20w 1.12 versus 1.34, p = 0.005; 32w 0.87 versus 1.09, p = 0.008) was associated with adverse obstetric and offspring outcome in the group of HD pregnant women. Conclusions: Nearly 50% of pregnancies were associated with an adverse obstetric outcome, particularly IUGR. mWHO was better at predicting obstetric and neonatal complications that CARPREG in all cathegories. Furthermore, compromised UDF combined with mWHO improved the prediction of obstetric and offspring complications in this population.

Physical examination-indicated cerclage in singleton and twin pregnancies: maternal–fetal outcomes

Abstract Objectives: To study maternal and perinatal outcomes after physical examination-indicated cerclage in both singleton and twin pregnancies and evaluate the possible risk factors associated. Study design: Retrospective review of all women undergoing physical examination-indicated cerclage at the Hospital Vall d’Hebro, Barcelona from January 2009 to December 2012 after being diagnosed with cervical incompetence and risk of premature birth. Results: During the study period, 60 cases of women diagnosed with cervical incompetence who were carrying live and morphologically-normal fetuses (53 singleton and 7 twin pregnancies), and who had an imminent risk of premature birth were evaluated. Mean gestational age until birth was 35 weeks in singleton and 32 weeks in twin pregnancies. Four cases (7.5%) of immature births and one case (2.0%) of neonatal death were recorded in singleton pregnancies. No cases of immature births or neonatal deaths were recorded in twin pregnancies. Diagnostic amniocentesis was performed IN all cases to rule out possible chorioamnionitis. Conclusions: Physical examination-indicated cerclage for cervical incompetence in women at risk for immature or preterm birth demonstrates good perinatal prognosis without increasing maternal morbidity in either singleton or twin pregnancies. The increase in gestation time in our study may also have been due to the fact that patients with subclinical chorioamnionitis were excluded by diagnostic amniocentesis.

Cervical pessary to reduce preterm birth <34 weeks of gestation after an episode of preterm labor and a short cervix: a randomized controlled trial

BACKGROUND: To date, no intervention has proved effective in reducing the spontaneous preterm birth rate in singleton pregnancies following an episode of threatened preterm labor and short cervix remaining. OBJECTIVE: This study was designed to ascertain whether cervical pessaries could be useful in preventing spontaneous preterm birth in women with singleton pregnancies and a short cervix after a threatened preterm labor episode. STUDY DESIGN: This open randomized controlled trial was conducted in 357 pregnant women (between 240–336 weeks) who had not delivered 48 hours after a threatened preterm labor episode and had a short cervix remaining (≤25 mm at 240–296 weeks; ≤15 mm at 300–336 weeks). Patients were randomly assigned to cervical pessary (179) or routine management (178). The primary outcome was the spontaneous preterm birth rate <34 weeks. Spontaneous preterm birth <28 and 37 weeks and neonatal morbidity and mortality were also evaluated in an intention‐to‐treat analysis. RESULTS: No significant differences between the pessary and routine management groups were observed in the spontaneous preterm birth rate <34 weeks (19/177 [10.7%] in the pessary group vs 24/175 [13.7%] in the control group; relative risk, 0.78; 95% confidence interval, 0.45–1.38). Spontaneous preterm birth <37 weeks occurred less frequently in the pessary group (26/175 [14.7%] vs 44/175 [25.1%]; relative risk, 0.58; 95% confidence interval, 0.38–0.90; P = .01). Preterm premature rupture of membranes rate was significantly lower in pessary carriers (4/177 [2.3%] vs 14/175 [8.0%]; relative risk, 0.28; 95% confidence interval, 0.09–0.84; P = .01). The pessary group less frequently required readmission for new threatened preterm labor episodes (8/177 [4.5%] vs 35/175 [20.0%]; relative risk, 0.23; 95% confidence interval, 0.11–0.47; P < .0001). No serious adverse maternal events occurred; neonatal morbidity and mortality were similar in both groups. CONCLUSION: Pessary use did not significantly lower the spontaneous preterm birth rate <34 weeks in women with a short cervix remaining after a threatened preterm labor episode but did significantly reduce the spontaneous preterm birth rate <37 weeks, threatened preterm labor recurrence, and the preterm premature rupture of membranes rate.

Expectant management in pregnant women with early and severe preeclampsia and concomitant risk factors

AIM The aim of this study was to demonstrate that women with severe early-onset preeclampsia and concomitant risk factors benefit from expectant management. METHODS This retrospective study was conducted between January 2009 and December 2010. Stable women with severe preeclampsia between 23+6 and 33+6weeks of gestation were admitted to the IOCU for conservative management. They were classified into two groups: those with concomitant risk factors, i.e. associated medical conditions, HELLP syndrome, severe oligohydramnios, fetal growth restriction and multiple pregnancies (group A) and those without (group B). P values lesser than 0.05 were considered statistically significant. RESULTS No significant differences were found in maternal and perinatal outcomes between groups. Neither were differences observed in pregnancy prolongation (mean: 8.42days (SD±7.462) in group A and 10.5days (SD±8.235) in group B (p=0.391)). At the start of expectant management, 31.8% of fetuses had an abnormal middle cerebral artery Doppler; prior to delivery, this percentage was 77.4%. CONCLUSION Pregnant women with severe early-onset preeclampsia and associated risk factors benefited from expectant management. During expectant management using a continuous magnesium sulfate regimen, the majority of fetuses showed cerebral vasodilatation. The exact clinical value of this finding should be clarified in further studies.