Abstract:
BACKGROUND:Therapeutic hypothermia (TH) has become standard treatment for severe and moderate hypoxic-ischemic neonatal encephalopathy (HIE). Our group has developed an optically based, noninvasive concept of assessing the capacity for oxygen delivery from the microcirculation to the cells of a tissue under investigation. The hypothesis was that mechanisms of reduced oxygen delivery due to reduced metabolism in cooled asphyxiated neonates could be characterized with this concept. METHODS:The skin of 28 asphyxiated newborn infants was studied on days 1 and 3 during TH and on day 4 following rewarming with laser Doppler perfusion measurements (LDPM), computer-assisted video microscopy (CAVM), and diffuse reflectance spectroscopy (DRS). Twenty-five healthy neonates served as a control group. RESULTS:The LDPM decreased during cooling (P < 0.01). Functional capillary density was higher both during and following TH compared with control infants (P < 0.01). Capillary flow velocities were reduced during TH (P < 0.05). The heterogeneity of the flow velocities was larger in the HIE infants than in the control infants. Tissue oxygen extraction was higher during TH (P < 0.01). CONCLUSION:This study indicates that assessments of skin microvascular density, capillary flow velocity, and oxygen extraction can be used to characterize reduced oxygen delivery to cells during TH.
journal_name
Pediatr Resjournal_title
Pediatric researchauthors
Fredly S,Fugelseth D,Nygaard CS,Salerud EG,Stiris T,Kvernebo Kdoi
10.1038/pr.2016.16subject
Has Abstractpub_date
2016-06-01 00:00:00pages
902-6issue
6eissn
0031-3998issn
1530-0447pii
pr201616journal_volume
79pub_type
杂志文章abstract::Iron is essential for fetal organ development, but the effect of isolated iron deficiency on nephrogenesis is unknown. Human premature infants are at risk for disrupted nephrogenesis because glomerular development is incomplete until 36-wk gestation. We modeled the effects of iron on postnatal glomerulogenesis in four...
journal_title:Pediatric research
pub_type: 杂志文章
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abstract::Establishment of Helicobacter pylori infection as an etiologic agent of peptic ulcer disease and other gastric pathologies marked a revolution in gastroenterology which spurred an enormous interest in gastric physiology and immunology research. The association was soon also demonstrated in children as well. Applicatio...
journal_title:Pediatric research
pub_type: 杂志文章,评审
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更新日期:2017-01-01 00:00:00
abstract::Pediatric research may be entering a period of failure to thrive. This is despite impressive scientific achievements, significant financial benefits, intriguing unanswered questions and a rewarding life for the pediatric researcher. Many of the difficulties are financial and situational, including small departments an...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198506000-00019
更新日期:1985-06-01 00:00:00
abstract::The influence of maternal stress during pregnancy on the postpartum iron status and immune maturation of infants was investigated in a nonhuman primate model. Forty infant rhesus monkeys were generated from two types of disturbed pregnancies, early or late gestation stress, and compared with 24 undisturbed controls. P...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/pdr.0b013e318045be53
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abstract::In 1975-1976, an experiment was performed at three sites of an HMO to investigate the effect of a protocol on drug prescribing for otitis media. A large and unexpected difference in encounter rates for otitis media was found among the sites. In the first 6 months of 1975, the rate of children less than 15 years with a...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198010000-00005
更新日期:1980-10-01 00:00:00
abstract::Pulmonary surfactant proteins SP-B and SP-C were isolated from lavage fluids of bovine lungs and recombined (lipid/proteins, 9/1, wt/wt) with dipalmitoyl phosphatidylcholine for testing in vitro and in surfactant-deficient adult rats. Using a pulsating bubble surfactometer, we found that inflation pressures of bubbles...
journal_title:Pediatric research
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doi:10.1203/00006450-198805000-00010
更新日期:1988-05-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000057986.74037.7B
更新日期:2003-05-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2011.76
更新日期:2012-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:1981-01-01 00:00:00
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journal_title:Pediatric research
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更新日期:2018-08-01 00:00:00
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journal_title:Pediatric research
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1998-10-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199705000-00002
更新日期:1997-05-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2016.169
更新日期:2016-12-01 00:00:00
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doi:10.1038/pr.2014.7
更新日期:2014-05-01 00:00:00
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pub_type: 杂志文章
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更新日期:1993-02-01 00:00:00
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更新日期:2020-09-12 00:00:00
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pub_type: 杂志文章
doi:10.1203/PDR.0b013e318123fbcc
更新日期:2007-09-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198410000-00014
更新日期:1984-10-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2008-02-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198903000-00005
更新日期:1989-03-01 00:00:00
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更新日期:1998-08-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199201000-00009
更新日期:1992-01-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199406000-00014
更新日期:1994-06-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
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更新日期:1990-11-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
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更新日期:2018-01-01 00:00:00
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journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199907000-00015
更新日期:1999-07-01 00:00:00