Abdominal Circumference Measure in Caesarian Section

Preoperative Measurement of Abdominal Circumference as a Predictor of Difficult Spinal Anesthesia and Maternal Hypotension During Caesarian Section

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06357637

Acronym

ACirCuS

Enrollment

124

Registered

2024-04-10

Start date

2023-12-01

Completion date

2024-05-31

Last updated

2024-07-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anesthesia, Spinal, Cesarean Section

Keywords

Preoperative evaluation, Abdominal circumference, Difficult spinal anesthesia, Maternal hypotension, Cesarean Section

Brief summary

The goal of this observational study is to evaluate preoperative measures of abdominal circumference in patients admitted for a cesarean section. The main questions it aims to answer are: * Can preoperative abdominal circumference predict patients with difficult spinal anesthesia * Can preoperative abdominal circumference predict the occurrence of maternal hypotension during cesarean section Participants will be examined preoperatively in terms of visibility and palpation of spinous processes, abdominal circumference will be measured in the supine and sitting positions with other clinical parameters. Spinal anesthesia will be performed by the same experienced anesthesiologist with a standardized procedure. The number of skin punctures, needle reorientations, traumatic Cerebrospinal fluid, need for a paramedian approach or failure will be recorded. Maternal blood pressure and vasopressor requirements will also be monitored.

Interventions

DIAGNOSTIC_TESTMeasure of abdominal circumference

Measure of abdominal circumference preoperatively in both sitting and lying position

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Parturients admitted for elective or emergency cesarean section

Exclusion criteria

* Acute fetal distress * Umbilical cord prolapse * Scoliosis * Contraindication to spinal anesthesia * Medical history of spinal surgery American Society of Anesthesia Status 4 or 5

Design outcomes

Primary

Measure	Time frame	Description
Number of patients with difficult spinal anesthesia	During surgery	More than two needle reorientations in the first puncture or more than one skin puncture

Secondary

Measure	Time frame	Description
Rate of Maternal hypotension	The first hour after spinal anesthesia is performed	Systolic blood pressure below 90 mmHg or a drop of more than 20% of base value

Countries

Morocco

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026