Document Type
Article
Publication Date
2018
College/Unit
School of Medicine
Department/Program/Center
Pediatrics
Abstract
Objectives: This study aimed to identify differences in absolute neutrophils, lymphocytes, and neutrophil-to-lymphocyte ratio between neonates with two forms of ischemic brain injury, hypoxic-ischemic encephalopathy, and acute ischemic stroke, compared to controls. We also aimed to determine whether this neutrophil/lymphocyte response pattern is associated with disease severity or is a consequence of the effects of total-body cooling, an approved treatment for moderate-to-severe hypoxic-ischemic encephalopathy. Methods: A retrospective chart review of 101 neonates with hypoxic-ischemic encephalopathy + total-body cooling (n = 26), hypoxic-ischemic encephalopathy (n=12), acute ischemic stroke (n=15), and transient tachypnea of the newborn (n=48) was conducted; transient tachypnea of the newborn neonates were used as the control group. Absolute neutrophil count and absolute lymphocyte count at three time-intervals (0–12, 12–36, and 36–60 h after birth) were collected, and neutrophil- to-lymphocyte ratio was calculated. Results: Hypoxic-ischemic encephalopathy+total-body cooling neonates demonstrated significant time-interval-dependent changes in absolute lymphocyte count and neutrophil-to-lymphocyte ratio levels compared to transient tachypnea of the newborn and acute ischemic stroke patients. Pooled analysis of absolute lymphocyte count for neonates with acute ischemic stroke and hypoxic-ischemic encephalopathy (not hypoxic-ischemic encephalopathy+total-body cooling) revealed that absolute lymphocyte count changes occurring at 0–12 h are likely due to disease progression, rather than total-body cooling treatment. Conclusion: These data suggest that the neutrophil/lymphocyte response is modulated following neonatal ischemic brain injury, representing a possible target for therapeutic intervention. However, initial severity of hypoxic-ischemic encephalopathy among these patients could also account for the observed changes in the immune response to injury. Thus, additional work to clarify the contributions of cooling therapy and disease severity to neutrophil/lymphocyte response following hypoxic- ischemic encephalopathy in neonates is warranted.
Digital Commons Citation
Povroznik, Jessica M.; Engler-Chiurazzi, Elizabeth B.; Nanavati, Tania; and Pergami, Paola, "Absolute lymphocyte and neutrophil counts in neonatal ischemic brain injury" (2018). Faculty & Staff Scholarship. 1854.
https://researchrepository.wvu.edu/faculty_publications/1854
Source Citation
Povroznik, J. M., Engler-Chiurazzi, E. B., Nanavati, T., & Pergami, P. (2018). Absolute lymphocyte and neutrophil counts in neonatal ischemic brain injury. SAGE Open Medicine, 6, 205031211775261. https://doi.org/10.1177/2050312117752613
Included in
Neuroscience and Neurobiology Commons, Pediatrics Commons, Pharmacy and Pharmaceutical Sciences Commons, Physiology Commons
Comments
Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons
Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).