Perioperative Biomarkers in C-Section

All parturients data were obtained, including demographic variables, perioperative data, and laboratory tests at pre- and postoperative day (POD) 0. The demographic variables included age, height, weight, body mass index (BMI), gestational age, parity numbers, gestational diabetes mellitus (DM), gestational hypertension (HTN), preoperative steroid use, previous C-sec and myomectomy history, and placenta accreta/increta. Parturients' laboratory tests were determined within 2 days before surgery in the ward, and at postoperative day (POD 0) for all parturients. Laboratory tests of preoperative, and POD 0 included white blood cell, hemoglobin, platelet count, INR,creatinine, total neutrophil count, total lymphocyte count, NLR, PLR, and RDW. NLR and PLR were calculated as the ratio between absolute neutrophil count to absolute lymphocyte count and between absolute platelet count to absolute lymphocyte count, respectively. Intraoperative data included operation time, crystalloid, colloid, urine output, estimated blood loss, and transfusion. Estimated blood loss was calculated through visual estimates of surgical blood loss, suctioned blood volume measurement, and blood-soaked gauze visual analogue. Postoperative variables included the use of analgesics, such as intravenous fentanyl. The primary aim was the comparison of postoperative NLR between the non-transfusion and transfusion groups. The secondary aim was the comparison of postoperative PLR and RDW between the non-transfusion and transfusion groups.