Ultrasound Assessment Of Gastric Volume In Pregnant Women Undergoing Elective Cesarean Section

Who can take part

• Pregnant women aged 18-65 years with a singleton pregnancy. Gestational age of 36 weeks or more. ASA physical status classification of II-III. Participants will be selected from patients scheduled for elective cesarean section who have been informed about the objectives and procedures of the study and who sign the informed consent form

Who cannot take part

• Patients using medications that may affect gastric motility, including prokinetic agents, anticholinergic drugs, or opioids
• Emergency cesarean section cases. Multiple pregnancies. Patients with gastrointestinal diseases, including symptomatic or treatment-requiring gastroesophageal reflux disease, peptic ulcer disease, active symptomatic gastritis, a history of diabetic gastroparesis, inflammatory bowel diseases (Crohn's disease or ulcerative colitis), or a history of gastrointestinal surgery, particularly gastric or esophageal surgery
• Patients with systemic diseases that may affect gastric motility, including type 1 or type 2 diabetes mellitus (excluding GDM), uncontrolled hypothyroidism or hyperthyroidism, neurological diseases (e.g., Parkinson's disease, multiple sclerosis, or autonomic neuropathy), or connective tissue diseases (e.g., scleroderma)
• Patients with severe systemic comorbidities, including ASA physical status classification IV or higher, advanced cardiac disease (e.g., NYHA class III-IV heart failure), advanced respiratory system disease (e.g., severe chronic obstructive pulmonary disease or restrictive lung disease), renal failure (stage 4-5 chronic kidney disease), or hepatic failure (Child-Pugh class B-C)
• Patients who refuse to participate in the study or do not sign the informed consent form