hypocapnia | definition

abnormally low blood levels of carbon dioxide


Betts, J. G., Young, K. A., Wise, J. A., Johnson, E., Poe, B., Kruse, D. H., … DeSaix, P. (n.d.). Anatomy and Physiology. Houston, Texas: OpenStax. Access for free at: https://openstax.org/details/books/anatomy-and-physiology


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The Effects of Hypocapnia on Brain Tissue Pulsations.
Alharbi M, Turner P, Ince J, Oura M, Ebirim KU, Almudayni A, Lecchini-Visintini A, Minhas JS, Chung EML.Brain Sci. 2020 Sep 6;10(9):E614. doi: 10.3390/brainsci10090614.PMID: 32899967 Free article.Hypocapnia is known to affect patients with acute stroke and plays a key role in governing cerebral autoregulation. However, the impact of hypocapnia on brain tissue pulsations (BTPs) is relatively unexplored. …Thirty participants underwent hyperventilation to ind …

Effects of hypothermia and hypothermia combined with hypocapnia on cerebral tissue oxygenation in piglets. Ringer SK, Clausen NG, Spielmann N, Weiss M.Paediatr Anaesth. 2020 Jun 7. doi: 10.1111/pan.13943. Online ahead of print.PMID: 32506675BACKGROUND: Hypothermia and its combination with hypocapnia are frequently associated with anesthesia. AIMS: The goal was to investigate the effects of hypothermia and hypothermia combined with hypocapnia (hypothermia-hypocapnia) on cerebral tissue oxygenatio …

 Alone Fails to Provoke Important Electrocardiogram Changes in Coronary Artery Diseased Patients.
Parkes MJ, Sheppard JP, Barker T, Ranasinghe AM, Senanayake E, Clutton-Brock TH, Frenneaux MP.Front Physiol. 2020 Jan 20;10:1515. doi: 10.3389/fphys.2019.01515. eCollection 2019.PMID: 32038268 Free PMC article. Hypocapnia has long been known to cause coronary artery vasoconstriction. Some new cardiology tests are accompanied by the claim that they must have potential diagnostic value if hypocapnia enhances their cardiac effects in healthy subjects. But no previous study ha …

Impact of Hyperoxia and Hypocapnia on Neurological Outcomes in Patients with Aneurysmal Subarachnoid Hemorrhage: A Retrospective Study. Li KC, Tam CWY, Shum HP, Yan WW. Crit Care Res Pract. 2019 Dec 6;2019:7584573. doi: 10.1155/2019/7584573. eCollection 2019. PMID: 31885915 Free PMC article. In the present study, we evaluated the impact of hyperoxia and hypocapnia on neurological outcomes in patients with aneurysmal SAH (aSAH). …These findings suggested that hyperoxia and hypocapnia may be associated with poor neurological outcomes in patients with aS …

Influence of mild-moderate hypocapnia on intracranial pressure slow waves activity in TBI.
Beqiri E, Czosnyka M, Lalou AD, Zeiler FA, Fedriga M, Steiner LA, Chieregato A, Smielewski P. Acta Neurochir (Wien). 2020 Feb;162(2):345-356. doi: 10.1007/s00701-019-04118-6. Epub 2019 Dec 16. PMID: 31844989 Free PMC article. Mild-moderate hypocapnia is currently used for short periods to treat critical elevations in ICP. Our goals were to assess changes in the ICP sw activity occurring following sudden onset of mild-moderate hypocapnia and to examine the relationship between changes in …