Role of initial and follow-up IL-6 (Interleukin-6) titre in COVID-19 pneumonia: A single center experience
Shital Vishnu Patil 1 2 * , Gajanan Gondhali 3 , Abhijit Acharya 4
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1 MIMSR Medical College, Latur, INDIA2 Venkatesh Chest Hospital and Critical Care Center Latur, INDIA3 Internal Medicine, MIMSR Medical College, Latur, INDIA4 Department of Pathology, MIMSR Medical College, Latur, INDIA* Corresponding Author

Abstract

Background: Robust data of IL-6 is available in bacterial infection, and now it can be utilized in currently ongoing COVID-19 (corona virus disease-19) pneumonia pandemic to guide treatment strategy as marker of inflammation.
Methods: Prospective, observational study included 1,000 COVID-19 cases confirmed with RT PCR (reverse transcription polymerase chain reaction). All cases were undergone categorized after clinical details, HRCT (high resolution computerized tomography) thorax, oxygen saturation, IL-6 (interleukin 6) at entry point and follow up. Age, gender, comorbidity and use BIPAP/NIV (bilevel positive airway pressure/non-invasive ventilation), and outcome as with or without lung fibrosis as per HRCT severity were key observations. Statistical analysis is done by using Chi-square test.
Results: In study of 1,000 COVID-19 pneumonia cases, age (<50 and >50 years) and gender has significant association with IL-6. HRCT severity score at entry point has significant correlation with IL-6 level (p<0.00001). IL-6 level has significant association with duration of illness (p<0.00001). Comorbidities has significant association with IL-6 level (p<0.00001). IL-6 level has significant association with oxygen saturation (p<0.00001). BIPAP/NIV requirement has significant association with IL-6 level (p<0.00001). Timing of BIPAP/NIV requirement during course of hospitalization has significant association with IL-6 level (p<0.00001). Follow-up IL-6 titer during hospitalization as compared to entry point normal and abnormal IL-6 has significant association with post-COVID-19 lung fibrosis, respectively (p<0.00001).
Conclusion: IL-6 has very crucial role in COVID-19 pneumonia in predicting severity of illness, progression of illness including ‘cytokine storm’ and assessing response to treatment during hospitalization and follow-up titers in analyzing post-COVID-19 lung fibrosis.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Original Article

ELECTRON J GEN MED, Volume 19, Issue 5, October 2022, Article No: em390

https://doi.org/10.29333/ejgm/12191

Publication date: 29 Jun 2022

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Article Downloads: 960

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