Analysis of Factors Associated With The Occurrence of Amniotic Fluid Entry in Patients Undergoing Caesarean Section (AOFAWTOOAFEIPU)

Shanxi Medical University

Status

Not yet enrolling

Conditions

Amniotic Fluid Embolism

Treatments

Diagnostic Test: Enzyme-linked immunosorbent assay

Study type

Observational

Funder types

Other

Identifiers

NCT06991985

yuewei20250520

Details and patient eligibility

About

To compare serum STN （Neuraminic acid-N-acetylgalactose）antigen concentrations in patients undergoing cesarean section and to study the factors associated with amniotic fluid entry.Compare the serum complement C4 concentration in patients in the amniotic fluid admission group with those in the non-admission group to study whether amniotic fluid admission triggers the body's immune response.To record the patients' blood pressure, heart rate, blood oxygen, and the occurrence of related symptoms and adverse reactions at the time of admission, at the time of blood collection, at the time of discharge from the room, and at the time of the occurrence of haemodynamic changes.

Full description

All patients were routinely fasted for 8 h and abstained from drinking for 4 h. After entering the operating theatre, intravenous access was opened, and blood pressure, heart rate, electrocardiogram, oxygen saturation and patient's symptoms were continuously monitored during the operation. After obtaining informed consent for anaesthesia from the patient and his family, intrathecal anaesthesia or general anaesthesia was administered according to the situation. Venous blood was drawn from the patient 30 min after the foetus was dissected out, and samples were preserved to measure the concentration of serum STN antigen and the concentration of complement C4; data were collected through the resident workstation system and the manual anaesthesia system, and the patient's information included age, history of allergy, number of deliveries, and history of combining with other illnesses; and the pregnancy information included Placenta type, amniotic fluid, hypertensive disorders of pregnancy, and whether or not the pregnancy was multiple; delivery data included whether or not elective caesarean section was performed, operator factors, intensity of contractions, method of rupture of membranes, and anaesthesia method.

Enrollment

120 estimated patients

Sex

Female

Ages

20 to 50 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Approved consent and informed consent of the patient by the Ethics Committee of the Second Hospital of Shanxi Medical University;
ASA classification of I-III;
Age 20-50 years old;
No previous history of psychiatric diseases or psychotropic drugs;

Exclusion criteria