Spinal hypotension in obstetrics: Context-sensitive prevention and management

Best Pract Res Clin Anaesthesiol. 2022 May;36(1):69-82. doi: 10.1016/j.bpa.2022.04.001. Epub 2022 Apr 12.

Abstract

Spinal hypotension during caesarean section remains a common complication, with important attendant maternal and fetal adverse outcomes. Research elucidating the mechanisms of spinal hypotension has led to the development and refinement of effective management strategies, with a particular emphasis on prophylactic vasopressor administration. This has proved effective in well-resourced settings, with maternal comfort and the elimination of nausea now considered the primary aim of treatment. In resource-limited settings, sophisticated strategies are not feasible due to insufficient equipment, staff, and expertise. Therefore, in these areas spinal hypotension remains an important cause of maternal and fetal morbidity and mortality. Translational, context-sensitive research in resource-limited settings has shown promise in implementing pragmatic strategies based on research from resource-rich environments. We review the current best practice for the prevention and treatment of spinal hypotension, with a special emphasis on effective strategies in resource-limited settings. We further suggest a research agenda to address the knowledge gap in specific contexts.

Keywords: caesarean section; hypotension; prophylaxis; resource-limited settings; spinal anaesthesia; vasopressors.

Publication types

  • Review

MeSH terms

  • Anesthesia, Obstetrical* / adverse effects
  • Anesthesia, Spinal* / adverse effects
  • Cesarean Section / adverse effects
  • Female
  • Humans
  • Hypotension* / drug therapy
  • Hypotension* / prevention & control
  • Obstetrics*
  • Phenylephrine
  • Pregnancy
  • Vasoconstrictor Agents / therapeutic use

Substances

  • Vasoconstrictor Agents
  • Phenylephrine