{"title":"Changes in tidal breathing biomarkers as indicators of treatment response in AECOPD patients in an acute care setting","authors":"Tess Nuñez Quiroga , Nadav Bachar , Wieland Voigt , Noy Danino , Inbal Shafran , Ronit Shtrichman , Gregory Shuster , Nina Lambrecht , Stephan Eisenmann","doi":"10.1016/j.advms.2023.04.001","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><p>Acute exacerbation of chronic obstructive pulmonary disease<span> (AECOPD) is a complication of COPD that typically necessitates intensified treatment and hospitalization. It is linked to higher morbidity, mortality and healthcare spending. Assessment of therapy response for AECOPD is difficult due to the variability of symptoms and limitations in current measures. Hence, there is a need for new biomarkers to aid in the management of AECOPD in acute care settings.</span></p></div><div><h3>Materials and methods</h3><p><span>Fifteen hospitalized AECOPD patients (GOLD 3–4) were enrolled in this study. Treatment response was assessed daily through clinical evaluations and by monitoring tidal breathing biomarkers (respiratory rate [RR], expiratory time [T</span><sub>ex</sub>], inspiratory time [T<sub>in</sub>], expiratory pause [T<sub>rst</sub>], total breath time [T<sub>tot</sub>]), using a novel, wearable nanosensor-based device (SenseGuard™).</p></div><div><h3>Results</h3><p>Patients who showed significant clinical improvement had substantial changes in ΔT<sub>ex</sub>/T<sub>tot</sub> (+14%), ΔT<sub>rst</sub>/T<sub>tot</sub> (−18%), and ΔT<sub>in</sub>/T<sub>ex</sub><span> (+0.09), whereas patients who showed mild or no clinical improvement had smaller changes (+5%, +3%, and −0.03, respectively). Linear regression between change in physician's assessment score and the median change in tidal breathing parameters was significant for T</span><sub>in</sub>/T<sub>ex</sub> (R<sup>2</sup> = 0.449, ∗p = 0.017), T<sub>ex</sub>/T<sub>tot</sub> (R<sup>2</sup> = 0.556, ∗p = 0.005) and T<sub>rst</sub>/T<sub>tot</sub> (R<sup>2</sup> = 0.446, ∗p = 0.018), while no significant regression was observed for RR, T<sub>in</sub>/(T<sub>rst</sub> + T<sub>ex</sub>) and T<sub>in</sub>/T<sub>tot</sub>.</p></div><div><h3>Conclusions</h3><p>Our study demonstrates the potential of the SenseGuard™ to monitor treatment response in AECOPD patients by measuring changes in tidal breathing biomarkers, which were shown to be associated with significant changes in the patients' respiratory condition as evaluated by physicians. However, further large-scale clinical studies are needed to confirm these findings.</p></div>","PeriodicalId":7347,"journal":{"name":"Advances in medical sciences","volume":"68 2","pages":"Pages 176-185"},"PeriodicalIF":2.5000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in medical sciences","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1896112623000147","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose
Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is a complication of COPD that typically necessitates intensified treatment and hospitalization. It is linked to higher morbidity, mortality and healthcare spending. Assessment of therapy response for AECOPD is difficult due to the variability of symptoms and limitations in current measures. Hence, there is a need for new biomarkers to aid in the management of AECOPD in acute care settings.
Materials and methods
Fifteen hospitalized AECOPD patients (GOLD 3–4) were enrolled in this study. Treatment response was assessed daily through clinical evaluations and by monitoring tidal breathing biomarkers (respiratory rate [RR], expiratory time [Tex], inspiratory time [Tin], expiratory pause [Trst], total breath time [Ttot]), using a novel, wearable nanosensor-based device (SenseGuard™).
Results
Patients who showed significant clinical improvement had substantial changes in ΔTex/Ttot (+14%), ΔTrst/Ttot (−18%), and ΔTin/Tex (+0.09), whereas patients who showed mild or no clinical improvement had smaller changes (+5%, +3%, and −0.03, respectively). Linear regression between change in physician's assessment score and the median change in tidal breathing parameters was significant for Tin/Tex (R2 = 0.449, ∗p = 0.017), Tex/Ttot (R2 = 0.556, ∗p = 0.005) and Trst/Ttot (R2 = 0.446, ∗p = 0.018), while no significant regression was observed for RR, Tin/(Trst + Tex) and Tin/Ttot.
Conclusions
Our study demonstrates the potential of the SenseGuard™ to monitor treatment response in AECOPD patients by measuring changes in tidal breathing biomarkers, which were shown to be associated with significant changes in the patients' respiratory condition as evaluated by physicians. However, further large-scale clinical studies are needed to confirm these findings.
期刊介绍:
Advances in Medical Sciences is an international, peer-reviewed journal that welcomes original research articles and reviews on current advances in life sciences, preclinical and clinical medicine, and related disciplines.
The Journal’s primary aim is to make every effort to contribute to progress in medical sciences. The strive is to bridge laboratory and clinical settings with cutting edge research findings and new developments.
Advances in Medical Sciences publishes articles which bring novel insights into diagnostic and molecular imaging, offering essential prior knowledge for diagnosis and treatment indispensable in all areas of medical sciences. It also publishes articles on pathological sciences giving foundation knowledge on the overall study of human diseases. Through its publications Advances in Medical Sciences also stresses the importance of pharmaceutical sciences as a rapidly and ever expanding area of research on drug design, development, action and evaluation contributing significantly to a variety of scientific disciplines.
The journal welcomes submissions from the following disciplines:
General and internal medicine,
Cancer research,
Genetics,
Endocrinology,
Gastroenterology,
Cardiology and Cardiovascular Medicine,
Immunology and Allergy,
Pathology and Forensic Medicine,
Cell and molecular Biology,
Haematology,
Biochemistry,
Clinical and Experimental Pathology.