Determination of Rectal Afferents, Based on the Analysis of Cerebral Evoked Potentials Induced by Rectal Stimulation
Journal of the Korean Society of Coloproctology
;
: 139-144, 2000.
Artículo
en Coreano
| WPRIM
| ID: wpr-156908
ABSTRACT
The rectum is a unique visceral organ, of which afferents are not so obvious. In anorectal surgery ablating the rectum and/or perirectal structure, this issue comes with significant meaning about whether to preserve patient's normal defecatory function, or not. So we planned this study to evaluate which nervous system concerns the afferents from the rectum. METHODS:
We recorded cerebral evoked potential (EPs) in 16 healthy male subjects after electrical and mechanical stimulation of the rectum, and compared their waving patterns regarding latencies and amplitudes of each peak with those occuring after electrical stimulation of the pudendal nerve.RESULTS:
The EPs after electrical stimulation of the rectum showed distinctly different waving patterns in comparison to those after electrical stimulation of the pudendal nerve. But the EPs after mechanical stimulation of the rectum showed very similar waving patterns with those after electrical stimulation of the pudendal nerve.CONCLUSIONS:
Rectal afferents of mechanical stimulation seem to be somatosensory, but those of electrical stimulation seem visceral. In that sense, sensory receptors of mechanical stimulation may lie in the perirectal structure, such as pelvic floor muscle and those of electrical stimulation lie in the rectum, itself.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Células Receptoras Sensoriales
/
Recto
/
Diafragma Pélvico
/
Estimulación Eléctrica
/
Potenciales Evocados
/
Nervio Pudendo
/
Sistema Nervioso
Límite:
Humanos
/
Masculino
Idioma:
Coreano
Revista:
Journal of the Korean Society of Coloproctology
Año:
2000
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS