Cerebral Blood Flow Response During Bolus Normal Saline Infusion After Ischemic Stroke

Research output: Contribution to journalArticle


External Institution(s)

  • University of Pennsylvania
  • Universidade Estadual de Campinas
  • Yale University
  • New York University


Original languageEnglish (US)
Article number104294
JournalJournal of Stroke and Cerebrovascular Diseases
Issue number11
StatusPublished - Nov 2019


Goals: We quantified cerebral blood flow response to a 500 cc bolus of 0.9%% normal saline (NS) within 96 hours of acute ischemic stroke (AIS) using diffuse correlation spectroscopy (DCS). Materials and Methods: Subjects with AIS in the anterior, middle, or posterior cerebral artery territory were enrolled within 96 hours of symptom onset. DCS measured relative cerebral blood flow (rCBF) in the bilateral frontal lobes for 15 minutes at rest (baseline), during a 30-minute infusion of 500 cc NS (bolus), and for 15 minutes after completion (post-bolus). Mean rCBF for each time period was calculated for individual subjects and median rCBF for the population was compared between time periods. Linear regression was used to evaluate for associations between rCBF and clinical features. Results: Among 57 subjects, median rCBF (IQR) increased relative to baseline in the ipsilesional hemisphere by 17% (−2.0%, 43.1%), P< 0.001, and in the contralesional hemisphere by 13.3% (−4.3%, 36.0%), P < .004. No significant associations were found between ipsilesional changes in rCBF and age, race, infarct size, infarct location, presence of large vessel stenosis, NIH stroke scale, or symptom duration. Conclusion: A 500 cc bolus of .9% NS produced a measurable increase in rCBF in both the affected and nonaffected hemispheres. Clinical features did not predict rCBF response.

    Research areas

  • Cerebral blood flow, diffuse correlation spectroscopy, saline, stroke, intravenous fluids

Citation formats


Mullen, M. T., Parthasarathy, A. B., Zandieh, A., Baker, W. B., Mesquita, R. C., Loomis, C., ... Kasner, S. E. (2019). Cerebral Blood Flow Response During Bolus Normal Saline Infusion After Ischemic Stroke. Journal of Stroke and Cerebrovascular Diseases, 28(11), [104294]. https://doi.org/10.1016/j.jstrokecerebrovasdis.2019.07.010


Mullen, MT, Parthasarathy, AB, Zandieh, A, Baker, WB, Mesquita, RC, Loomis, C, Torres, J, Guo, W, Favilla, CG, Messé, SR, Yodh, AG, Detre, JA & Kasner, SE 2019, 'Cerebral Blood Flow Response During Bolus Normal Saline Infusion After Ischemic Stroke', Journal of Stroke and Cerebrovascular Diseases, vol. 28, no. 11, 104294. https://doi.org/10.1016/j.jstrokecerebrovasdis.2019.07.010