Veronica Giorgione1,2, Vlasta Fesslova3, Sara Boveri4, Massimo Candiani1, Asma Khalil2,5, Paolo Cavoretto1. 1. Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy. 2. Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK. 3. Center of Fetal Cardiology, IRCCS Policlinico San Donato, Milan, Italy. 4. Scientific Directorate, IRCCS Policlinico San Donato, Milan, Italy. 5. Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, London, UK.
Abstract
OBJECTIVE: The placental development has been shown to be compromised in pregnancies affected by fetal congenital heart defects (CHD). This study aimed to investigate the frequency of complications related to utero-placental insufficiency in pregnancies with and without major CHD. METHOD: This retrospective case-control study was conducted at a Fetal Echocardiography Center in Milan. The following outcomes were compared between the two groups: preeclampsia (PE), small for gestational age (SGA), placental disorders and preterm birth (PTB). The logistic regression analysis was adjusted for maternal age, parity, co-morbidities and mode of conception. RESULTS: The CHD group (n = 480) showed significantly increased incidence of PE (2.9% vs 0.9%; aOR, 6.50; 95% CI, 1.39-30.41; P = .017) as compared to the control group (n = 456). Placental disorders occurred more frequently in the CHD than in controls, but the increased risk showed only a borderline significance (4.5% vs 3.3%; aOR, 2.56; 95% CI, 0.99-1.02; P = .046). There was a significantly higher risk of SGA in CHD than in controls (8.7% vs 3.9%; aOR, 3.37; 95% CI, 1.51-7.51; P = .003). PTB occurred in 65/477 (13.6%) cases and in 39/447 (8.7%) controls (P = .022) (aOR, 2.17; 95% CI, 1.24-3.81; P = .007). CONCLUSION: Major CHD are significantly associated with the risk of PE, SGA and PTB.
OBJECTIVE: The placental development has been shown to be compromised in pregnancies affected by fetal congenital heart defects (CHD). This study aimed to investigate the frequency of complications related to utero-placental insufficiency in pregnancies with and without major CHD. METHOD: This retrospective case-control study was conducted at a Fetal Echocardiography Center in Milan. The following outcomes were compared between the two groups: preeclampsia (PE), small for gestational age (SGA), placental disorders and preterm birth (PTB). The logistic regression analysis was adjusted for maternal age, parity, co-morbidities and mode of conception. RESULTS: The CHD group (n = 480) showed significantly increased incidence of PE (2.9% vs 0.9%; aOR, 6.50; 95% CI, 1.39-30.41; P = .017) as compared to the control group (n = 456). Placental disorders occurred more frequently in the CHD than in controls, but the increased risk showed only a borderline significance (4.5% vs 3.3%; aOR, 2.56; 95% CI, 0.99-1.02; P = .046). There was a significantly higher risk of SGA in CHD than in controls (8.7% vs 3.9%; aOR, 3.37; 95% CI, 1.51-7.51; P = .003). PTB occurred in 65/477 (13.6%) cases and in 39/447 (8.7%) controls (P = .022) (aOR, 2.17; 95% CI, 1.24-3.81; P = .007). CONCLUSION: Major CHD are significantly associated with the risk of PE, SGA and PTB.