Table 1.

A summary of the principal characteristics of the cases presented, encompassing gestational age (GA) at admission, ultrasound findings, peak systolic velocity of the middle cerebral artery (MCA PSV) upon admission, serological test outcomes, initial fetal hematocrit levels, the occurrence of intrauterine transfusion, and the pregnancy outcome.

	GA at Admission	Ultrasound Abnormalities	PSV MCA at Admission	Serological Test Results	Initial Fetal Hematocrit	Intrauterine Transfusion	Pregnancy Outcome
Case 1	15	skin edema (++) ascites (++) pleural effusion (+) pericardial effusion (+)	-	IgG (+) IgM (+)	-	no	intrauterine fetal death
Case 2	23	skin edema (+++) ascites (+++) pleural effusion (+++)	65.31 cm/s 2.17 MoM	IgG (+) IgM (+)	-	no	intrauterine fetal death
Case 3	25	skin edema (+++) ascites (+++) pleural effusion (+++) pericardial effusion (+)	63.00 cm/s 1.94 MoM	IgG (+) IgM (+)	-	no	intrauterine fetal death
Case 4	20	skin edema (+++) ascites (+++) pleural effusion (+++) cardiomegaly	59.4 cm/s 2.35 MoM	IgG (+) IgM (+)	unknown	yes	intrauterine fetal death
Case 5	23	thickening of placenta skin edema (+) ascites (+) pericardial effusion (+) cardiomegaly	78.00 cm/s 2.6 MoM	IgG (+) IgM (+)	10.9%	yes	neonate’s death 5 days after delivery (delivery at 26th week of pregnancy)
Case 6	24	skin edema (+++) ascites (+++) pleural effusion (+++) pericardial effusion (+)	89.00 cm/s 3.02 MoM	IgG (+) IgM (+)	6.1%	yes	total resolution of hydrops live pregnancy
Case 7	21	skin edema (+) ascites (++) pericardial effusion (++) mitral valve regurgitation	52.00 cm/s 1.91 MoM	IgG (+) IgM (+)	15.3%	yes	total resolution of hydrops live pregnancy
Case 8	26	skin edema (+++) ascites (+++) pericardial effusion (++)	86.00 cm/s 2.46 MoM	IgG (+) IgM (−)	unknown	no	neonate’s death 1 h after delivery (delivery at 26th week of pregnancy)