Retrobulbar hemorrhage after 12,500 retrobulbar blocks

Anesth Analg. 1993 May;76(5):1019-22. doi: 10.1213/00000539-199305000-00019.

Abstract

To determine the incidence of hemorrhage after retrobulbar nerve block, 12,500 consecutive cases were reviewed. Fifty-five retrobulbar hemorrhages occurred after retrobulbar injection, a prevalence of 1 in 227 (0.44%). This compares favorably with the quoted prevalence of 1%-3% in the literature. Acquired vascular disease was a significant risk factor (P < 0.017). Surgery was postponed in 41 (75%) of the cases in which a hemorrhage developed. Although retrobulbar hemorrhage is considered a serious complication of retrobulbar anesthesia, the eventual visual outcome after surgery in these patients was not significantly different from the control group.

MeSH terms

  • Aged
  • Case-Control Studies
  • Female
  • Hemorrhage / epidemiology
  • Hemorrhage / etiology*
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Nerve Block / adverse effects*
  • Orbit / innervation*
  • Orbital Diseases / epidemiology
  • Orbital Diseases / etiology*
  • Retrospective Studies
  • Saudi Arabia / epidemiology