ArticleWorld journal of clinical cases2021
Preprocedure ultrasound imaging combined with palpation technique in epidural labor analgesia.
Article in World journal of clinical cases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Ultrasound guidance versus anatomical landmarks for neuraxial anaesthesia in adults.The Cochrane database of systematic reviews · 2025Pooled it
- A Randomized Clinical Trial Comparing Different Concentrations of Chloroprocaine with Lidocaine for Activating Epidural Analgesia During Labor.International journal of general medicine · 2022Trial
- [Interlaminar Distance and Bony Landmarks in Lumbar Neuraxial Anesthesia: A Concordance Study].Revista medica del Instituto Mexicano del Seguro Social · 2026Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFor parturients with paroxysmal uterine contraction pain, rapid analgesia is needed. We used preprocedure ultrasound imaging combined with the palpation technique in epidural analgesia for labor, and evaluated the usefulness of this technique in epidural labor analgesia.
aimTo evaluate the usefulness of preprocedure ultrasound imaging in epidural analgesia for labor.
methodsIn this prospective randomized observational study, 72 parturients were assigned to two groups (combined or palpation group). The target interspace of all parturients was first identified by the palpation technique. Then in the combined group, preprocedure ultrasound imaging was used before epidural puncture. In the palpation group, only the traditional anatomical landmarks technique (palpation technique) was performed. The primary outcome was total duration of the epidural procedure (for the ultrasound group, the duration of the preprocedure ultrasound imaging was included). The secondary outcomes were the number of skin punctures, the success rate at first needle pass, the number of needle passes, the depth from the skin to epidural space, and the complications of the procedure.
resultsTotal duration of the epidural procedure was similar between the two groups (406.5 ± 92.15 s in the combined group and 380.03 ± 128.2 s in the palpation group;
conclusionThis study demonstrated that the total duration of epidural procedures with preprocedure ultrasound imaging combined with the palpation technique was not longer than the traditional anatomical landmarks technique, which were performed by six experienced anesthesiologists in parturients with normal weights undergoing labor analgesia.
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