Noninvasive breathing analysis: repetitive chloral hydrate in neonatal guinea pigs.

Noninvasive breathing analysis: repetitive chloral hydrate in neonatal guinea pigs.
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无创呼吸分析:新生豚鼠重复水合氯醛。

DOI:
10.1002/ppul.1950130410
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发表时间:
1992
影响因子:
3.1
通讯作者:
Weil,JA
Weil,JA
中科院分区:
医学3区
文献类型:
--
作者:
Olsen,GD;Weil,JA

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采用无创方法记录豚鼠幼鼠的新生儿呼吸、心率和脑电图。新生儿在出生时被随机分配到水合氯醛(CH)或安慰剂(PLA)治疗。在出生后第1、3、5、7、14和21天,每次研究前30分钟给予治疗。研究人员对动物进行了研究,让它们分别呼吸含有5%二氧化碳和30%氧气的室内空气。CH降低呼吸频率(f)和吸气分气量(文章空\rmV\限值^)。I),但对第一周的潮气量(VT)没有影响(P< 0.05),并且在整个研究过程中降低了生长速度(P< 0.01),而CO2呼吸增加了f, VT,文章空量\rmV\限值^。I、HR和脑电δ频段的相对功率。然而,CO2诱导的VI变化百分比不受药物治疗的影响。所有呼吸参数和HR均有显著的生命日影响。在对豚鼠进行重复的新生儿研究时,将其作为镇静剂使用,应考虑到CH对呼吸和生长的累积效应。©1992 Wiley‐Liss, Inc。
A noninvasive method was used to record neonatal breathing, heart rate (HR), and the electroencephalogram (EEG) in guinea pig pups. Neonates were randomly assigned at birth to chloral hydrate (CH) or placebo (PLA) treatment. Treatments were administered 30 min before each study on days 1, 3, 5, 7, 14, and 21 after birth. Animals were studied while they breathed room air followed by air with 5% CO2 and 30% O2. CH decreased breathing frequency (f) and inspiratory minute volume (article empty \rmV\limits^. I), but not tidal volume (VT) during the first week (P< 0.05), and reduced the rate of growth throughout the study (P< 0.01), whereas breathing of CO2 increased f, VT, article empty \rmV\limits^. I, HR, and the relative power in the delta frequency band of the EEG. The percent change in VI induced by CO2, however, was not affected by drug treatment. There was a significant day of life effect on all breathing parameters and HR. CH has cumulative effects on breathing and growth that should be considered when it is used as a sedative for repeated neonatal studies in guinea pigs.© 1992 Wiley‐Liss, Inc.
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