ABSTRACT
Background: High-resolution computed tomography (HRCT) chest is rapid and has a strong sensitivity for diagnosing viral pneumonia including COVID 19 disease in its early stages in comparison to RT-PCR, thus being crucial in triaging patients for treatment and isolation, to prevent further transmission of the disease. In this study we are going to analyse the temporal changes in imaging findings of COVID-19 on HRCT chest. Methods: prospective study was conducted in the Department of Radiology of an exclusive 500 bedded COVID Hospital in Bhubaneswar, Odisha, India. Evaluation of hundred patients was done based on inclusion and exclusion criteria, after obtaining informed consent over a period of 2 years from September 2020 to September 2022. All pertinent epidemiological data was gathered from hospital records. All COVID 19 RT-PCR positive patients who underwent HRCT Chest on admission and repeat scan within 30 days, following the progression of the disease were included. Those who were clinically suspected COVID cases but were RT PCR negative on RT-PCR testing, were excluded. Results: HRCT chest demonstrated diffuse ground glass opacities to be the predominant finding (55%) with the associated findings of sub pleural atelectatic bands (31%) and septal thickening (23%). There was a positive correlation of blood parameters like CRP in COVID patients. A higher incidence was found in patients with Type-2 diabetes mellitus, followed by those with hypertension. In majority of the cases (80%) bilateral lungs and in about 81% cases, two or more lung lobes were involved. Mild and moderately ill patients were found to have a CTSS (CT severity score) in the score range of 15-25. Typical category was the most common type followed by atypical and indeterminate categories. Conclusions: 'Typical pattern' along with diffuse ground glass opacities of multiple lobes in the HRCT chest was the most common pattern of lung involvement. High Computer Tomography Severity Score (CTSS) corresponds to a higher disease severity, which helps in taking a timely decision for early treatment. HRCT Thorax has early and fast diagnostic capability as compared to RT-PCR in the detection of COVID-19. The elderly and those with comorbidities are at a higher risk of developing severe disease. Blood parameters like CRP can be used for disease monitoring and follow-up purposes. [ FROM AUTHOR] Copyright of Journal of Cardiovascular Disease Research (Journal of Cardiovascular Disease Research) is the property of Journal of Cardiovascular Disease Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)
ABSTRACT
OBJECTIVE: The objective of this systematic review was to analyze the main morphofunctional changes in the involvement of multiple organs in patients infected with SARS-CoV-2, correlating anatomopathological findings with the clinical picture. METHODS: The present study selected articles through electronic search of indexed journals in the PubMed and SciVerse Scopus databases, from December 2019 to May 2020, using the keywords "autopsy," "pathogenicity," and "COVID-19." Two hundred nine articles were identified, and the full texts of 18 articles were reviewed, 5 of them being selected for this review. RESULTS: The ACE2 receptor plays a role in introducing viral material into the cell, having high expression in type II alveoli. Histopathological analyzes of the lungs of patients with COVID-19 show that SARS-CoV-2 produces, in this organ, in addition to an inflammatory process, a diffuse alveolar damage (DAD), which can cause acute respiratory distress syndrome (ARDS). Macroscopically, the lungs become heavier, firmer, and redder. The clinical features of these patients are variable; the most common are respiratory symptoms associated with fever, myalgia, or fatigue. CONCLUSION: The observations points to the consensus that the lungs are the main targets of COVID-19, with morphological and functional changes of interest, including important sequels, and presenting diffuse alveolar damage as a substrate for an unfavorable outcome with ARDS. Changes in micro and macroscopic levels corroborate to the clinical progression of the disease and that these alterations are not specific, which ratify, in addition to the anatomopathological examination, a need to use the association of clinical and epidemiological data for diagnostic confirmation.