Sleep Disordered Breathing in Children with Mitochondrial Disease

Table 2

Polysomnographic indications, test time, respiratory data, and limb movement description in patients with mitochondrial disorder.

ID	PSG indication	TTT	TST	Snoring	Obstructive AI	Obstructive AHI	CAI	Total AHI	RDI	% TST ETCO2 >50 torr	% TST SpO2 <90%	PLM index
1	Snoring, EDS	8.0	7.0	N	0	0	0.3	0.3	0.3	0	0	0
2	EDS, inattention at school, snoring	8.2	6.7	Y	0	0.9	0.5	1.4	1.6	17.6	0.8	5.6
3	EDS, inattention at school	9.1	5.1	N	0.2	0.2	0	0.2	6.3	0	0	0
5	Restless sleep	8.0	7.2	N	0	0	0.4	0.4	0.4	0	0.1	0
6	EDS	7.9	6.3	N	0.3	0.6	0	0.6	1.9	97.2	0.1	0
7	EDS	7.7	7.2	N	0	0.4	0.3	0.7	0.7	0	0.2	0
8	Snoring, witnessed apneas, inattention at school	8.1	6.8	N	0	0	0.3	0.3	0.3	0.4	0.1	0
9	Frequent nighttime awakening	8.2	6.9	Y	0.1	1.3	0.1	1.5	1.6	0.1	0.2	0
10	Frequent night wakening and muscle jerking episodes	7.6	6.4	N	0	0.5	1.3	1.7	2.5	0	2.7	0
11	EDS	7.4	6.6	Y	0	0.2	0.5	0.6	0.6	0	0.2	0
12	EDS, inattention at school, snoring	8.9	7.6	N	0	3.0	0.1	3.2	4.6	0.1	0	0
13	Snoring, gasping during sleep	8.9	7.9	Y	0.3	4.5	0	4.7	5.0	22.8	7.5	22.6
14	Restless sleep, muscle jerks, heavy breathing	8.6	8.1	N	0	0.6	0.7	1.4	1.6	10.5	2.9	0
15	Difficulty sleeping, EDS	7.6	7.2	Y	2.8	4.7	0.7	5.4	10.4	25.2	0.1	0
16	Snoring	7.3	5.7	N	0.9	1.1	0.2	1.2	47.9	0.4	7.4	0
17	EDS, fatigue	7.2	6.4	N	0.3	1.4	0.3	1.7	13.6	0	0.6	0
18	Snoring, morning headaches, EDS	7.2	6.4	Y	0	0.3	0.2	0.3	1.4	0	0	0
19	Snoring, morning headaches, EDS	8.5	7.8	Y	0.1	0.1	0	0.1	0.4	0	0	0.8

PSG: polysomnogram, TTT: total test time, TST: total sleep time, AI: apnea index, AHI: apnea hypopnea index, CAI: central apnea index, RDI: respiratory disturbance index, PLM: periodic limb movement, EDS: excessive daytime somnolence, Y: yes, and N: no.