Residual Lung Parenchymal CT Changes in COVID-19 Patients and its Association with Common Predictors

Authors

  • Rajive Raj Shahi Department of Radiodiagnosis and Imaging, Nepalese Army Institute of Health Scinces, Shree Birendra Hospital, Chhauni, Kathmandu, Nepal
  • Bibek Karki Department of Radiodiagnosis and Imaging, Nepalese Army Institute of Health Scinces, Shree Birendra Hospital, Chhauni, Kathmandu, Nepal
  • Lee Budhathoki Department of Community Medicine, Nepalese Army Institute of Health Sciences, Sanobharyang, Kathmandu, Nepal
  • Shavana RL Rana Department of Physiology, Nepalese Army Institute of Health Sciences, Sanobharyang, Kathmandu, Nepal
  • Sujata Panta Panta Department of Radiodiagnosis and Imaging, Nepalese Army Institute of Health Scinces, Shree Birendra Hospital, Chhauni, Kathmandu, Nepal
  • Bikalp Thapa Department of Physiology, Nepalese Army Institute of Health Sciences, Sanobharyang
  • Ranju Shrestha Department of Radiodiagnosis and Imaging, Nepalese Army Institute of Health Scinces, Shree Birendra Hospital, Chhauni, Kathmandu, Nepal
  • Parag Karki Department of Medicine, Shree Birendra Hospital, Nepalese Army Institute of Health Sciences, Chhauni, Kathmandu, Nepal

DOI:

https://doi.org/10.3126/mjsbh.v21i1.41539

Keywords:

Chest CT, COVID-19, Predictors, Severity score

Abstract

Introduction: Chest computed tomography (CT) is used for the screening and diagnosis of COVID-19 pneumonia. The aim of the study is to study the prevalence of residual lung parenchymal CT changes in COVID-19 patients and its association with common predictors.

Methods: Longitudinal study conducted at Shree Birendra Hospital in which diagnosed COVID-19 patients with initial CT scan showing COVID-19 related changes were retrospectively enrolled after ethics approval. The study period was from 15 February 2020 to 15 November 2021. Chest CT changes were evaluated and CT scan severity score (CT SS) assigned. Data was entered in Microsoft Excel and analysed in SPSS (Statistical Package for Social Sciences) version 16. 

Results: Males were more common (72.6%) among the 62 enrolled participants with the mean age 53.63 ± 15.05 years. Median interval between two scans was 137 days. Residual lung parenchymal CT changes were seen in 43 (69.4%) participants. Hypertension (25, 40.3%) and GGO (55, 88.7%) were the most common comorbidity and CT features respectively. The mean initial and final CT SS was 10.84 ± 5.87 and 3.55 ± 4.58 respectively (Total score 25, p = 0.001). Age was significantly associated with severity of CT score (p = 0.04).

Conclusions: A large percentage of COVID-19 patients have chest CT changes after three months of initial chest CT scan. CT SS reduced significantly in the second scan. Similar studies with long term serial CT follow up of patients is recommended to be carried out in future.

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Published

2022-07-07

How to Cite

Shahi, R. R. ., Karki, B. ., Budhathoki, L., Rana, S. R. ., Panta, S. P., Thapa, B., Shrestha, R. S., & Karki, P. (2022). Residual Lung Parenchymal CT Changes in COVID-19 Patients and its Association with Common Predictors. Medical Journal of Shree Birendra Hospital, 21(1), 112–117. https://doi.org/10.3126/mjsbh.v21i1.41539

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Section

Original Articles