Introduction: Sodium is the ion with the highest extracellular concentration and thus also determines the osmolality in the extracellular space. The lower the serum sodium, the more serious the dilemma.Case Series: Case 1: A eutrophic female was born at 37+3 weeks gestation, birth by vacuum extraction, birth weight 2570-gram, umbilical cord blood gas analysis performed in delivery showed severe hyponatremia (sodium 122 mmol/L). Case 2: A eutrophic male was born at 40+4 weeks gestation, spontaneous labor, birth weight 3230-gram, suspicion of cerebral seizure, postpartum hyponatremia, perinatal metabolic acidosis, respiratory failure, and hypoxic ischemic encephalopathy. Case 3: A eutrophic male was born at 38+4 weeks gestation, spontaneous birth, birth weight 2895-gram, postpartum severe hyponatremia, suspicion of cerebral seizure, cyanosis attacks. Case 4: A preterm female was born at 31+1 weeks gestation, birth weight 1195-gram, sodium 125 mmol/L, potassium 6.3 mmol/L with respiratory disorder. Conclusion:We recommend a quick diagnosis and stop the factors that cause hyponatremia. Laboratory

A pregnancy in a non-communicant rudimentary horn is a rare but serious complication. Patients with bicornuate uterus non-communicating have an increased risk of obstetrical complications, such as abortion, intrauterine growth restriction, and fetal demise. Uterus bicornuate non-communicant rudimentary horn (UBNCRH) is a rare malformation of the uterus. The presence of uterus bicornuate noncommunicant rudimentary horn poses a great challenge for a gynecologist because that occurs due to the transperitoneal migration of the sperm or the zygote during the implantation period and the Muellerian anomalies are often asymptomatic. We report a case of 28-year-old female with a twin dichorionic diamniotic pregnancy with pain and vaginal bleeding in the 16 weeks of gestation with a UBNCRH.

No abstract