Journal of Hematology and Clinical Research ISSN: 2640-2823

The complicated process of cancer triggers many physiological systems like vascular endothelial functions and hemostasis, which signifies the increased risk of thrombosis, which triggers thromboembolic events resulting in increased mortality and morbidity [1-3]. Tumorigenesis contributes by activation of coagulation around the perivascular region [4].

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Abstract Read Full Article HTML DOI: 10.29328/journal.jhcr.1001015 Cite this Article

Abstract

Background: Like other viruses, the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) appears to be responsible for several autoimmune complications. The occurrence of autoimmune hemolytic anemia has been described in several case reports. This AIHA was also noticeable by the important number of blood transfusions required for COVID-19 (coronavirus disease 2019) patients. By investigating RBC coating autoantibodies, this article attempts to clarify the autoimmune aspect of the anemia in the context of SARS-CoV-2 infection.

Results: A large population of COVID-19 patients selected at Saint-Luc University Hospital showed an average of 44% DAT positivity. In this population, the intensive care patients were more prone to DAT positivity than the general ward patients (statistically significant result). The positive DAT appeared « transmissible » to other RBCs via COVID-19 DAT-positive patient’s plasma.

Conclusion: The strongest hypothesis explaining this observation is the targeting of cryptic antigens by autoantibodies in COVID-19 patients.

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Abstract Read Full Article HTML DOI: 10.29328/journal.jhcr.1001016 Cite this Article

Abstract

Background: Leukemia is frequently associated with fundoscopic abnormalities. However, no organized effort has been made for analyzing leukemic retinopathy in our country. This study was done to observe the demographic profile and correlation between fundoscopic findings of retinal exudates and hematological parameters in leukemic patients.

Materials and Methods: The study was a hospital-based descriptive cross-sectional study among 50 leukemic patients in Medicine and Oncology departments of Bangladesh Medical College and Hospital (BMCH) from May, 2020 to October, 2020. Fundoscopic examination was done which was reviewed by an ophthalmologist. Collected data was analyzed statistically by using SPSS-17 (Chicago, Illinois).

Results: Among 50 leukemic patients’, the fundal lesion was detected in 32 patients (64%), retinal exudates are rare. Only 3 patients (6%) had exudates while others (29 patients, 58%) have retinal hemorrhages. Exudates did not show any statistically significant relationship with types of leukemia (p value = 0.53). There was no statistically significant association between fundal exudates and high white cell count (p = 0.56) or low hemoglobin level (p = 0.11) or low platelet level (p = 0.11).

Conclusion: This study has identified retinopathy occurring frequently in leukemic patients. Therefore, an adequate attention should be paid at fundoscopic evaluation while treating leukemic patients.

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