Visceral perception arises from mechano-afferent networks modulated by cortical feedback. Colostomy disrupts this loop, yet residual sensory activity may persist.
To integrate neurophysiological and biomechanical data relevant to colostomy and to outline a theoretical model for adaptive continence devices.
A structured narrative review (PubMed, Scopus, IEEE Xplore 1980–2025) identified 28 studies on rectal sensitivity, cortical plasticity after diversion, and gut biomechanics. Recent evidence on neural remapping (Luo et al., 2022; Carvalho et al., 2023) was incorporated. Quantitative ranges were extracted and translated into engineering parameters.
Mean first-sensation threshold = 25 ± 5 mm Hg; pain threshold > 50 mm Hg. fMRI after diversion shows partial cortical re-organisation with preserved interoceptive mapping. A theoretical stress-transfer model (Eq. 1) links peristomal tension (σₛ) to rectal wall stress (σᵣ).
Although direct measurements in stoma tissue are lacking, theoretical analogies supported by known mechanics offer a safe design framework. Ethical neutrality and transparent conflict declarations ensure scientific integrity.
Citation: Bencini, C. (2025). Visceral Sensitivity and Perceptual Thresholds in Colostomy: A Neurophysiological and Engineering Review. J Sur & Surgic Proce.,3(4):1-3.