While vagal injury (including intentionally via vagotomy) results in gastroparesis, the authors propose that chronic CN X compression may induce a "hyperactive rhizopathy" resulting in symptoms of overactive peristalsis. CN X compression may be an underrecognized, reversible etiology of chronic GI distress, and clinicians should consider the possibility of neurovascular conflict in this patient population. https://thejns.org/doi/10.3171/CASE2688.
McMahon et al. (Mon,) studied this question.