Nocturnal Vocalization

Abstract

A 37-year-old non-sleepy (Epworth Sleepiness Scale score of 8) female with a history of depression, obesity, and restless leg syndrome underwent a polysomnography (PSG) for evaluation of daytime fatigue and sleepiness. The split-night PSG revealed an apnea-hypopnea index (AHI) of 15/hour. However, vocalizations were noted during the diagnostic portion of the night that disappeared during the later portion of the study. A sample video PSG fragment with the nocturnal vocalizations is presented in Video 1.

Lamentations in the night: A systematic review on catathrenia

“…First reported in Europe, they have been described in Belgium [1,3,8,9], Italy [2,[10][11][12][13][14][15][16], the United Kingdom [17][18][19], Portugal [20][21][22], Spain [23][24][25][26][27][28], the Czech Republic [29], Germany [30,31], Switzerland [32], Norway [33] and France [34]. In the Americas, cases have been reported in the United States [18,19,[35][36][37][38][39][40][41][42][43][44] and Peru [45], and in Asia, in Turkey [46], South Korea [47,48], India [49], China [50][51]…”

“…When bruxism and catathrenia occur simultaneously, the sequence begins with an arousal, followed by the mandibular rhythmic activity characteristic of sleep bruxism, and then catathrenia begins [54]. One author reports a case in which catathrenia was interrupted by a hiccup (typical of involuntary inspiratory activity) during expiration [36]. Several authors mention the absence of periodic leg movements during sleep [11][12][13].…”