Arterial and Cerebral Venous Blood Gases Differ in Acute Tension Pneumothorax

Autor:	J. Peter Harris, Arthur E. Kopelman, Donald Holbert, Thomas M. Louis
Rok vydání:	1993
Předmět:	Respiratory distress business.industry Ischemia Obstetrics and Gynecology Venous blood Blood flow medicine.disease pCO2 Respiratory acidosis Mean blood pressure Anesthesia Pediatrics Perinatology and Child Health Medicine Arterial blood business
Zdroj:	Journal of Maternal-Fetal and Neonatal Medicine. 2:63-69
ISSN:	1476-4954 1476-7058
DOI:	10.3109/14767059309017228
Popis:	Tension pneumothorax (TP) complicates the course of respiratory distress syndrome in about 13% of low birth weight infants. If TP is accompanied by hypotension the majority of infants will develop large intraventricular hemorrhages or cerebral ischemic lesions. Severe TP likely produces cerebral ischemia as a consequence of systemic hypotension, but in a previous clinical study we did not demonstrate accompanying abnormalities in the arterial blood gases. Because of the possibility that arterial blood gases do not reflect tissue acid-base abnormalities during TP, this study was designed to compare sagittal sinus blood gases with arterial gases during and following recovery from severe TP in 5-7 day piglets.During a 4 minute TP mean blood pressure and common carotid blood flow dropped by 75% and 73%, respectively, and the electroencephalogram became isoelectric. Also sagittal sinus pCO2 rose (from 45.7 to 63.4 mmHg, P < 0.02) and pH fell (from 7.31 to 7.23, P < 0.02). During TP, end-tidal CO2 decreased (fr...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::790bc3dc58ddd7a9ed46fe9df5a96e22 https://doi.org/10.3109/14767059309017228 Zobrazit plný text záznamu