Author: Chen, Wanxin; Li, Ziping; Yang, Bohan; Wang, Ping; Zhou, Qiong; Zhang, Zhiguo; Zhu, Jianhua; Chen, Xuexing; Yang, Peng; Zhou, Hao
Title: Delayedâ€Phase Thrombocytopenia in Patients of Coronavirus Disease 2019 (COVIDâ€19) Cord-id: vknxzzgm Document date: 2020_5_26
ID: vknxzzgm
Snippet: COVIDâ€19 can affect the hematopoietic system. Thrombocytopenia at admission was prevalent, while lateâ€phase or delayedâ€phase thrombocytopenia (occurred 14 days after symptom onset) is obscure. This retrospective singleâ€center study screened 450 COVIDâ€19 patients and enrolled 271 patients at the Union Hospital, Wuhan, China, from January 25th to March 9th, 2020. COVIDâ€19 associated delayedâ€phase thrombocytopenia occurred in 11.8% percent of enrolling patients. The delayedâ€phase th
Document: COVIDâ€19 can affect the hematopoietic system. Thrombocytopenia at admission was prevalent, while lateâ€phase or delayedâ€phase thrombocytopenia (occurred 14 days after symptom onset) is obscure. This retrospective singleâ€center study screened 450 COVIDâ€19 patients and enrolled 271 patients at the Union Hospital, Wuhan, China, from January 25th to March 9th, 2020. COVIDâ€19 associated delayedâ€phase thrombocytopenia occurred in 11.8% percent of enrolling patients. The delayedâ€phase thrombocytopenia in COVIDâ€19 is prone to develop in elderly patients or patients with low lymphocyte count on admission. The delayedâ€phase thrombocytopenia is significantly associated with increased length of hospital stay and higher mortality rate. Delayedâ€phase nadir platelet counts demonstrated a significantly negative correlation with B cell percentages. We also presented bone marrow aspiration pathology of three patients with delayedâ€phase thrombocytopenia, showing impaired maturation of megakaryocytes. We speculated that immune mediated platelet destruction might account for the delayedâ€phase thrombocytopenia in a group of patients. Besides, clinicians need to pay attention to the delayedâ€phase thrombocytopenia especially at 3â€4 weeks after symptom onset.
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