Skin blood flow changes during apneic spells in preterm infants
| Autor: | Jg Aarnoudse, A. Okken, H.W. Jentink, F.F.M. de Mul, H.E. Suichies, Jan Greve |
|---|---|
| Přispěvatelé: | University of Twente |
| Rok vydání: | 1989 |
| Předmět: |
Bradycardia
Resuscitation Hemodynamics bradycardia IR-70535 preterm infant Sleep Apnea Syndromes Heart rate medicine Humans apneic spells Skin Apneic spells integumentary system business.industry Infant Newborn Obstetrics and Gynecology Apnea Infant Blood flow Laser Doppler velocimetry Laser-Doppler apnea Anesthesia Pediatrics Perinatology and Child Health Skin blood flow medicine.symptom business Blood Flow Velocity Infant Premature |
| Zdroj: | Early human development, 20(3-4), 155-163. Elsevier |
| ISSN: | 0378-3782 |
| Popis: | Changes in skin blood flow during apneic spells were determined in 18 preterm infants using a diode laser Doppler flow meter without light conducting fibres. Heart rate, nasal air flow, impedance pneumography, skin and incubator temperature and laser Doppler skin blood flow were recorded simultaneously in each infant. During 212 apneic spells with a duration of 11.6 +/- 7.5 s (mean +/- S.D.) (range 6.0-48.0 s), the laser Doppler skin blood flow was measured. In all children except one, the majority of the apneic spells was associated with a decrease in skin blood flow. During 155 apneic spells (73%) skin blood flow decreased significantly P less than 0.025), the maximum decrease being 16.7 +/- 14.8%, 28.5 +/- 23.9% and 18.9 +/- 16.1% (mean +/- S.D.) for central, obstructive and mixed apneic spells, respectively. The decrease in skin blood flow started immediately after the beginning of apneic spells in 71%, the rest started with a mean delay of 3.4 s (range 0.1-7.0 s). No relation was found between the decrease in skin blood flow and the duration of the apneic spells. Thirty-four percent of the apneic spells were accompanied by bradycardia. In apneic spells accompanied by bradycardia the decrease in skin blood flow was not related to the fall in heart rate. |
| Databáze: | OpenAIRE |
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