Background and Objectives. Pregnant patients with spinal cord injuries
are predisposed to autonomic hyperreflexia, which if unrecognized or
untreated can lead to death. Hypertension occurring in laboring patien
ts at risk for autonomic hyperreflexia must be managed aggressively. M
ethods. Epidural anesthesia can safely control autonomic hyperreflexia
during labor and delivery, but because spinal cord impaired patients
lack sensory and motor function below the level of injury, it is diffi
cult to determine the dermatomal spread of epidural anesthesia by the
usual methods. This difficulty is highlighted by the following case, r
eporting an epidural that failed during labor, with the subsequent dev
elopment of autonomic hyperreflexia. Results. Previously, autonomic hy
perreflexia occurring in pregnant patients (undergoing surgical proced
ures) was treated with intravenous antihypertensive agents. During lab
or, however, titrating these agents to coincide with uterine contracti
ons is difficult. In this case, epidural anesthesia was repeated and t
he autonomic hyperreflexia resolved. Conclusions. Autonomic hyperrefle
xia can develop in unanesthetized laboring paraplegic patients (failed
epidural) but it can be successfully managed with adequate epidural a
nesthesia.