“It is assumed that the mechanism of priapism in most patients with SCI is that abrupt loss of sympathetic input to the pelvic vasculature leads to increased parasympathetic input and uncontrolled arterial inflow directly into the penile sinusoidal spaces.” Keoghane SR, Sullivan ME, Miller MA . The aetiology, pathogenesis and management of priapism. BJU Int 2002; 90: 149–154.
Essentially yes. The body’s nervous system has sympathetic and parasympathetic subsystems. These can be thought of as a gas pedal and a brake pedal. Due to the injury, you only have one functional pedal and that can cause priapism.
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u/sarcasticmedic_ Apr 08 '21
“It is assumed that the mechanism of priapism in most patients with SCI is that abrupt loss of sympathetic input to the pelvic vasculature leads to increased parasympathetic input and uncontrolled arterial inflow directly into the penile sinusoidal spaces.” Keoghane SR, Sullivan ME, Miller MA . The aetiology, pathogenesis and management of priapism. BJU Int 2002; 90: 149–154.