Traces from a woman with complete tetraplegia (C5, no 1), showing recordings after sacral posterior de-afferentation and anterior sacral root stimulation. Upper graph, urodynamic recordings of the bladder pressure (BLA, green) and external urethral sphincter (EUS, red); lower graph, continuous trend display of blood pressure (BP, green) and the heart rate (HR, red) during urodynamic examination. The stimulation parameters were adjusted to induce a single bladder contraction first without a, and thereafter with b, consecutive voiding. Bladder contraction without voiding led to a 6 s delay in blood pressure increase, that then decreased as bladder pressure decreased. On the contrary, stimulation (ST)-induced bladder contraction with consecutive voiding (Mi) paralleled the blood pressure increase despite a concomitant decrease in intravesical pressure.
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