Correlation Between the Abdominal Circumference and the Incidence of Hypotension in Parturients Undergoing Cesarean Section Under Spinal Anesthesia
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Abstract
Introduction:Hypotension during cesarean section under spinal anesthesia is a common complication that can affect outcomes. Abdominal circumference, reflecting uterine and fetal size, may impact the risk of hypotension. This study investigates the correlation between abdominal circumference and hypotension incidence in parturients undergoing cesarean delivery to identify potential predictive markers for better management.
Objectives: The objective of this study is to investigate the correlation between abdominal circumference and the incidence of hypotension in parturients undergoing cesarean section under spinal anesthesia.
Methods: After obtaining informed written consent, a total of 60 women were enrolled in the study. Participants were divided into two groups based on abdominal circumference measurements: those with a circumference of 100 cm or less and those with a circumference greater than 100 cm. The study focused on examining the relationship between abdominal circumference and the incidence of hypotension during cesarean section under spinal anesthesia.
Results: Participants were divided into two abdominal circumference groups: "Larger" (52%) and "Smaller" (48%). Baseline mean arterial pressure (MAP) for the smaller circumference group was most common in the 80-90 mmHg range (55%), while for the larger circumference group, it was also most frequent in the 80-90 mmHg range (42%). After spinal anesthesia, 52% of those with a smaller circumference experienced hypotension (MAP decrease >20%), compared to 65% in the larger circumference group. This indicates a higher prevalence of significant hypotension in individuals with larger abdominal circumference, reflecting the increased risk associated with larger abdominal girth following spinal anesthesia
Conclusions: Pregnancy-related increases in abdominal circumference are associated with significant decreases in mean arterial pressure from baseline. However, the incidence of hypotension did not show a significant difference between groups with larger and smaller abdominal circumferences. This suggests that while abdominal circumference affects mean arterial pressure, it may not be a definitive predictor of hypotension risk in parturients undergoing cesarean section under spinal anesthesia.