Ultrasonography versus palpation for spinal anesthesia in obese parturients undergoing cesarean delivery: a randomized controlled trial
Authors' conclusion
Preprocedural ultrasonography did not decrease the number of needle passes required to obtain free CSF flow or improve other outcomes compared with landmark palpation during spinal anesthesia performed by a single experienced anesthesiologist in obese parturients undergoing cesarean delivery.
Study context
- Population
- American Society of Anesthesiologists (ASA) II–III parturients with BMI ≥35 kg/m², full-term singleton pregnancy, elective cesarean delivery under spinal anaesthesia2 equal groups
- Participants
- 280 participants
- Comparison
- Ultrasonography vs Palpation
- Primary endpoint
- Number of needle passes required to obtain free cerebrospinal fluid (CSF) flow
Methodological detailspatient- and outcome assessor-blinded, single operator, All ultrasound and spinal procedures by a single experienced anaesthesiologist
- Patient- and outcome assessor-blinded
- Single operator
- All ultrasound and spinal procedures by a single experienced anaesthesiologist
Primary result
As reported in the abstract
Ultrasonography
3
median · IQR 1–7
Palpation
3
median · IQR 1–7
P = 0.62
Secondary outcomes
Skin punctures, first-pass and first-puncture success, procedure duration, patient satisfaction
- No significant differences between the two groups
Original publication
Ultrasonography versus palpation for spinal anesthesia in obese parturients undergoing cesarean delivery: a randomized controlled trial. Reg Anesth Pain Med. Published 15 May 2023. doi:10.
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