Results
The demographic data of the study population was shown in Table 1 and the maternal baseline characteristics were similar in both groups (p>0,05). In table 2, the clinical points of SARS-CoV-2 infection were shown and the gestational age of the SARS-CoV-2 infection diagnosis was 20 (8–34). In the RSI group, 18 (37.5%) patient had mild disease, 20 (41.6%) patient had moderate disease, and 10 (20.8%) patient had severe disease. There was no critical patient in this group. Thirty (62,5%) of the study patients were hospitalized and 10 (20,8%) of them needed respiratory support. The echocardiographic findings were given in Table 3. All fetuses had normal cardiac morphology. The median value of ultrasound evaluation was 34 (2.6) weeks of gestation in the RSI group, and 32 (7.6) weeks in the control group (p=0.565). LCO z score was found significantly lower in the RSI group than the control group (p=0,041). Table 4 shows the relation between SARS-CoV-2 infection severity and fetal echocardiographic findings. LCO and CCO z scores were significantly lower in the severe disease group than mild disease, moderate disease, and control groups (p=0,019 and p=0,013). CCO (mL/min/kg) was found to be decreased in the severe disease group than mild disease and control groups (p=0,044). Perinatal outcomes were given in Table 5. Gestational age at birth and birth weight were significantly lower in the severe disease group compared to mild disease, moderate disease, and control groups (p<0,001 and p=0,020). Fetal distress, preterm delivery rate, and neonatal intensive care unit (NICU) admission were higher in the severe disease group than controls (p=0,010, p=0,009, and p<0,001 respectively).