Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?

Purpose. Mixed or central venous oxygen saturation has not been described during concurrent heart failure and hypothermia in children, both of which may be associated with hyperlactatemia. This report of an infant with heart failure and hypothermia is significant for increased inferior vena cava (IV...

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Main Author: J. Scott Baird
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Case Reports in Critical Care
Online Access:http://dx.doi.org/10.1155/2018/2895124
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author J. Scott Baird
author_facet J. Scott Baird
author_sort J. Scott Baird
collection DOAJ
description Purpose. Mixed or central venous oxygen saturation has not been described during concurrent heart failure and hypothermia in children, both of which may be associated with hyperlactatemia. This report of an infant with heart failure and hypothermia is significant for increased inferior vena cava (IVC) oxygen saturation and hyperlactatemia. Case Report. A 36-day-old female was fussy for a day and then developed respiratory distress. In the Pediatric ER, she was tachycardic (260 beats/minute) and hypothermic (32.4 degrees C) with prolonged capillary refill and faint distal pulses. Adenosine was given twice via an intraosseous line for supraventricular tachycardia, with conversion to sinus rhythm. Blood drawn from an IVC catheter was significant for uncorrected (for temperature) oxygen saturation of 94% and lactate 18 mmol/L; corrected and uncorrected IVC oxygen saturation early during rewarming were >90%. During rewarming, declines in uncorrected IVC oxygen saturation and lactate correlated. Hypothermia and hyperlactatemia resolved after 10 and 12 hours. Conclusions. Concurrent heart failure and hypothermia in an infant were associated with increased IVC oxygen saturation and hyperlactatemia, similar to lab findings associated with a mitochondrial toxin such as cyanide. Improvement of heart failure and hypothermia were associated with resolution of these lab abnormalities, thus helping to rule out mitochondrial toxins. Additional reports may help better define a pseudocyanide syndrome in this setting.
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spelling doaj-art-348b1ac99b67490c81e84f22b25a9a052025-02-03T05:46:25ZengWileyCase Reports in Critical Care2090-64202090-64392018-01-01201810.1155/2018/28951242895124Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?J. Scott Baird0Department of Pediatrics, Division of Critical Care Medicine, Columbia University, New York, NY, USAPurpose. Mixed or central venous oxygen saturation has not been described during concurrent heart failure and hypothermia in children, both of which may be associated with hyperlactatemia. This report of an infant with heart failure and hypothermia is significant for increased inferior vena cava (IVC) oxygen saturation and hyperlactatemia. Case Report. A 36-day-old female was fussy for a day and then developed respiratory distress. In the Pediatric ER, she was tachycardic (260 beats/minute) and hypothermic (32.4 degrees C) with prolonged capillary refill and faint distal pulses. Adenosine was given twice via an intraosseous line for supraventricular tachycardia, with conversion to sinus rhythm. Blood drawn from an IVC catheter was significant for uncorrected (for temperature) oxygen saturation of 94% and lactate 18 mmol/L; corrected and uncorrected IVC oxygen saturation early during rewarming were >90%. During rewarming, declines in uncorrected IVC oxygen saturation and lactate correlated. Hypothermia and hyperlactatemia resolved after 10 and 12 hours. Conclusions. Concurrent heart failure and hypothermia in an infant were associated with increased IVC oxygen saturation and hyperlactatemia, similar to lab findings associated with a mitochondrial toxin such as cyanide. Improvement of heart failure and hypothermia were associated with resolution of these lab abnormalities, thus helping to rule out mitochondrial toxins. Additional reports may help better define a pseudocyanide syndrome in this setting.http://dx.doi.org/10.1155/2018/2895124
spellingShingle J. Scott Baird
Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
Case Reports in Critical Care
title Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
title_full Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
title_fullStr Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
title_full_unstemmed Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
title_short Heart Failure and Hypothermia in an Infant: Pseudocyanide Syndrome?
title_sort heart failure and hypothermia in an infant pseudocyanide syndrome
url http://dx.doi.org/10.1155/2018/2895124
work_keys_str_mv AT jscottbaird heartfailureandhypothermiainaninfantpseudocyanidesyndrome