Objective: To understand an unusual complication of a common procedure.
Design: This article chronicles the side effect of a lumbar sympathetic nerve block (LSNB).
Setting: Loyola University Medical Center Outpatient Chronic Pain Clinic.
Patients: One.
Results: Our patient had several hours of priapism following a LSNB.
Conclusions: A bilateral lumbar sympathetic nerve block can lead to unopposed parasympathetic penile stimulation and cause priapism.
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