The effect of intra-abdominal pressure on sensory block level of single-shot spinal anesthesia for cesarean section: an observational study.

摘要: Background: Increased intra-abdominal pressure in pregnancy is thought to affect intrathecal drug spread. However this assumption remains largely untested. The aim of prospective study was evaluate the association between and maximum sensory block level parturients receiving spinal anesthesia for cesarean section. Methods: Parturients having elective section with single-shot using hyperbaric bupivacaine 12.5 mg were included. Intra-abdominal measured via a bladder catheter after establishing T4 at end surgery supine position 10 left lateral tilt. We recorded demographic data, descriptive characteristics pregnancy, self-reported weight gain newborn. As secondary outcomes, we evaluated onset block, motor number hypotensive episodes, fluid ephedrine requirements, time first analgesic request, one-point recovery side effects. Results: median value T2 117 parturients. Median [interquartile range] pre-incision postoperative 13 [11–16] 9 [6–10] mmHg respectively. No observed (P = 0.83). Weight associated an estimated odds ratio 1.04 per kg (99.4% CI: 1.00–1.08). There moderate correlation Spearman coefficient 0.67 (99.5% 0.5–0.79). no outcomes. Conclusions: In parturients, not spread, time, or c 2014 Elsevier Ltd. All rights reserved.