Laryngeal brainstem evoked response: a developmental study.

摘要: A developmentally receding laryngeal chemoreflex (LCR) has been described in infant animals of several species characterized by vocal cord adduction response to stimulation as well a potentially fatal cardio-respiratory response. Age-related differences the brain-stem respiratory centers may account for LCR and play role such disorders Sudden Infant Death Syndrome (SIDS) apnea. Study at brainstem level could provide insights into normal maturation eventually patho-physiology these disorders. The present study evaluated (LBR) evoked electrical superior nerve kittens using far-field technique similar auditory testing. Recordings were obtained via posterior pharyngeal cervical recording sites compared results previously our laboratory adult cats. The LBR demonstrated threshold, latencies, morphology which suggests that postnatal function does occur.