منابع مشابه
Cerebral fractional oxygen extraction is inversely correlated with oxygen delivery in the sick, newborn, preterm infant.
Cerebral blood flow (CBF) is known to be low in newborn infants, but this has not been shown to be damaging. The purpose of this study was to investigate the relationships between cerebral haemoglobin flow, blood flow, oxygen delivery, oxygen consumption, venous saturation, and fractional oxygen extraction (OEF) in newborn, preterm infants. Measurements were made by near-infrared spectroscopy i...
متن کاملA Model of the Respiratory System in the Newborn Infant
A dynamic mathematical model is presented which successfully simulates the respiratory control system of the newborn infant in different physiological conditions. The primary objective in constructing this model has been to provide a simulation aid in the investigation of maturation of the respiratory system, and the respiratory disorders during the newborn period, without the need for invasive...
متن کاملOxygen therapy in the newborn period represents a challenge
After the experiments of Scheele, Priestly and especially Lavoisier, oxygen quickly came into use in adult medicine. When oxygen was introduced in newborn medicine almost 100 years ago, no critical questions seemed to be raised. When the relation between retinal damage (retinopathy of prematurity = ROP) and high oxygen in premature infants was detected more than 50 years ago, this resulted in a...
متن کاملHypoxia in the newborn infant
Many disorders of breathing in the newborn period arise because of failure of normal cardio-pulmonary adaptation. In order to understand the pathogenesis of these disorders it is necessary first to summarize the changes that normally take place in the lungs and circulation at birth. In fetal life the respiratory centre is not, as was once thought, inactive. Breathing movements in utero, first s...
متن کاملHypoxia in the newborn infant.
Hypoxia in newborn infants is becoming much easier to prevent, detect and treat. Nevertheless the successful management of potentially hypoxic fetuses and newborn infants remains the major challenge to all physicians concerned with perinatal care. What is at stake is not only that sick infants should survive, but equally or more importantly that the survivors should be normal children. Recent f...
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ژورنال
عنوان ژورنال: JAPANES JOURNAL OF MEDICAL INSTRUMENTATION
سال: 1977
ISSN: 0385-440X,1881-4875
DOI: 10.4286/ikakikaigaku.47.9_473