We report a case of cervical teratoma diagnosed on the 31st week of gestation with the aid of a 2DUS and color Doppler mode. We focus on the main findings obtained with the three-dimensional ultrasonography in surface mode, and we highlight the importance of this methodology for the indirect evaluation of the neonatal prognosis.
Background Patients with single ventricle physiology who have benefited from the Fontan procedure are reaching childbearing age. In this population, complications are common around pregnancy, but the long term effect of pregnancy is unclear. Purpose To evaluate functional and structural changes several years after pregnancy in patients with Fontan circulation. Methods Women with Fontan circulation who had a pregnancy beyond the 20 weeks of gestation followed at our centre between 2005–2019 were included. The following data were collected before pregnancy and at the last follow up (f-up): cardiac anatomy, type of Fontan procedure, resting O2 saturation (O2sat), NYHA class, systemic atrioventricular valve (SAVV) regurgitation, ventricular function, history of arrhythmias, heart failure (HF), thromboembolism, Fontan-related liver disease (FLD), protein-losing enteropathy (PLE), plastic bronchitis and cardiopulmonary test data. Results 12 patients had 18 pregnancies, giving birth to 17 live newborns (1 newborn death at 24 weeks of gestation). 7 (58.3%)patients had a total cavo-pulmonary connection, 3 (25%)an atrio-pulmonary connection and 2 (16.7%)a Bjork type Fontan. Tricuspid atresia was the most common anatomy (6, 50%). Before pregnancy, O2sat was 95.4±1.9%and all patients were in NYHA class I or II. All patients (12, 100%)had a normal or mildly impaired ventricular function and 3 (25%)had a moderate or severe SAAV regurgitation. 6 (50%)patients had 2 pregnancies. Mean age at first pregnancy was 29.9±4.4 years. Cardiac events occurred in 7 (38%)pregnancies, most commonly atrial arrhythmia (4, 57%), 2 (16.6%)patients developed new cyanosis and 1 had a thromboembolic event. No maternal death occurred and 1 patient had severe haemorrhage. After a mean f-up of 84±48 months, there was no significant worsening in O2sat (94.3±3.1 at f-up, p=1) and all patients remained in NYHA class I or II (12, 100%, p=1). At f-up all patients (12, 100%)continued to have a normal or mildly impaired ventricular function (p=1) and there was no significant worsening in the SAAV regurgitation (3 patients with moderate or severe regurgitation, p=1). 3 (25%)patients developed FLD (p=0.3), 3 (25%) a new episode of atrial arrhythmia (p=0.3). There were no significantly differences in peak VO2 (22.5±3.8 pre-pregnancy, 22.8±5.5 at f-up, p=0.4) and VE/VCO2 slope (34.9±11.2 pre-pregnancy, 36.3±11.8 at f-up, p=0.2)before pregnancy and during f-up. Conclusions In this small cohort of Fontan patients who successfully completed at least 1 pregnancy, there was no significant decline in functional or structural cardiac parameters long term after delivery. Funding Acknowledgement Type of funding source: None
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