Yesilkaya N, Tellioglu TM, Unay FC, İner H, Besir Y, Gokalp O, Yılık L, Gurbuz A. Histopathologic Evaluation of COVID-19 Patients With Peripheral Arterial Thromboembolism: Does Clot Composition Make Any Sense?
Ann Vasc Surg 2021;
74:80-87. [PMID:
33819598 PMCID:
PMC8018781 DOI:
10.1016/j.avsg.2021.03.004]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/26/2021] [Accepted: 03/07/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND
Coronavirus disease 2019 (COVID-19) causes thromboembolic complications during or post-infection period despite a lack of conventional risk factors. The study aims to learn fundamental changes in COVID-19 patients who underwent embolectomy in terms of clinical characteristics and clot composition.
METHODS
In a retrospective cohort study design, we evaluated 21 patients who underwent embolectomy in our clinic between March 12, 2020, and December 31, 2020. Demographics, characteristics, and laboratory values were abstracted and analyzed. Histopathological assessment was held in the pathology department.
RESULTS
Of these 21 patients, 11 (52.3%) were SARS-CoV-2 positive and 10 (47.6%) were SARS-CoV-2 negative. There is no statistical difference in terms of anatomic distribution, diagnostic method, length of hospital stay, amputation or mortality levels. Thromboembolic material of COVID-19 patients include significantly less red blood cell (RBC) (21.2-32.6%; P= 0.01), more lymphocyte (14.1-2.6%; P< 0.001), and more leukocyte (27.1-22.1%; P= 0.05). There was no statistical difference between the fibrin ratio.
CONCLUSIONS
Inflammatory cells are prominent in arterial thromboembolic material of COVID-19 patients. A combination of hyperinflammation and prothrombotic status may be responsible for this phenomenon.
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