期刊
FETAL DIAGNOSIS AND THERAPY
卷 25, 期 3, 页码 304-313出版社
KARGER
DOI: 10.1159/000235876
关键词
Fetal sheep; Pleurodesis; Gram-positive bacteria; Fetal breathing
资金
- Mercia Barnes trust
- Health Research Council of New Zealand
- March of Dimes Birth Defects Foundation
- Auckland Medical Research Foundation
- Lottery Grants Board of New Zealand
Objective: To develop a model to study the fetal effects of intrapleural infusion of OK-432 (Picibanil), a pleurodesis agent derived from killed Gram-positive streptococci. Methods: OK-432 (0.1 mg, n = 5), or normal saline (n = 5) were infused over 20 min into the pleural space of chronically instrumented preterm fetal sheep at 0.7 gestation. Fetal physiological parameters, including breathing and nuchal activity were monitored in utero from 6 h before infusion until 12 h afterward, and fetuses were killed after 7 days recovery. Results: OK-432 was associated with transient suppression of fetal EEG activity, breathing and body movements from 3-6 h after infusion. Hypotension and hypoxia did not occur. At postmortem, local pleural adhesions were seen around the site of OK-432 infusion but not in saline treated fetuses. Conclusions: Intrapleural administration of OK-432 is associated with marked but transient fetal behavioral effects. This model will enable preclinical investigation of the neural and cardiovascular safety of OK-432 at a clinical relevant stage of development. Copyright (C) 2009 S. Karger AG, Basel
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