VARIATION OF OXYGEN-SATURATION DURING PER IODIC BREATHING

Citation
G. Vonczettritz et al., VARIATION OF OXYGEN-SATURATION DURING PER IODIC BREATHING, Monatsschrift fur Kinderheilkunde, 145(5), 1997, pp. 496-501
Citations number
39
Categorie Soggetti
Pediatrics
ISSN journal
00269298
Volume
145
Issue
5
Year of publication
1997
Pages
496 - 501
Database
ISI
SICI code
0026-9298(1997)145:5<496:VOODPI>2.0.ZU;2-Q
Abstract
Objektives: Periodic variations of oxygen saturation are often found i n infants during periodic breathing. Aim of this study was to examine this phenomenon more systematically. Methods: ECG, respiration and art erial oxygen saturation (pulse oximetry) were recorded on 104 preterm and 100 term infants (mean sleep recording time 14.2 hours). In 15 inf ants showing marked variations of oxygen saturation additional simulta neous oxyten saturation measurements at the right hand and foot were p erformed. Results: 98 % of preterm and 57 % of term infants showed per iodic oxygen saturation variations during periodic breathing. The peak to peak amplitude of oxygen saturation was between 2 and 35 % with fa ll and rise times of 3.0-8.1 secends. The simultaneous measurements sh owed significantly higher variations at the foot. Conclusions: Periodi c breathing is accompanied by periodic variations of oxygen saturation in a high percentage. Some infants showed acute hypoxaemia during the se episodes. According to our results of simultaneous oxygen saturatio n measurements a periodically occurring, intermittent right to left sh unting via the foetal circulation pathways is discussed as an explanat ion.