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Article Abstract
Spinal anesthesia (SA) is the preferred technique for cesarean section (CS), but variability in sensory block levels poses challenges. This variability becomes particularly prominent in pregnant women, and while the physiological changes of pregnancy are widely recognized contributors, local anesthetic (LA) properties and some technical factors are also responsible for these variations. Literature from 2015 to 2025 was reviewed on PubMed and Google Scholar to identify physiological, technical, and pharmacological factors responsible for spinal block characteristics in parturients. Pregnancy-related changes, e.g., reduced cerebrospinal fluid volume (CSF), technical factors (e.g., interspace misidentification), and drug baricity contribute to variability. A detailed understanding of the physiological changes of pregnancy, fine details of anesthetic technique, and pharmacological properties of medications used is important. Individualized techniques and adopting ultrasound guidance could enhance consistency. Further studies on CSF density and standardized protocols are warranted.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12366537 | PMC |
| http://dx.doi.org/10.7759/cureus.88429 | DOI Listing |
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