Secondary hemophagocytic lymphohistiocytosis due to Heartland virus.
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2022-12
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Abstract
An older man from the mid-Southeastern USA presented with acute onset of fever, fatigue, and non-bloody diarrhoea. There was high suspicion for tick-borne illness given exposure history, clinical presentation and laboratory abnormalities. Despite prompt treatment with doxycycline, the patient clinically worsened. He was diagnosed with secondary hemophagocytic lymphohistiocytosis (HLH) due to Heartland virus (HRTV). This is the second documented case of secondary HLH due to HRTV, and the first in a relatively immunocompetent patient. Furthermore, though HRTV has been primarily concentrated in the Central USA, our case provides evidence of further geographic expansion of HRTV, mirroring the increased range of the Lone Star tick. Clinicians should consider HRTV when a patient with a clinical presentation consistent with tick-borne illness fails to respond to doxycycline. Furthermore, healthcare providers should be aware of the geographic expansion of HRTV and the potential of HRTV to lead to secondary HLH.
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Ahlers, Carolyn G, Harrison Matthews, Reinaldo Perez and Susanna Naggie (2022). Secondary hemophagocytic lymphohistiocytosis due to Heartland virus. BMJ case reports, 15(12). p. e253082. 10.1136/bcr-2022-253082 Retrieved from https://hdl.handle.net/10161/34619.
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Reinaldo Perez
Susanna Naggie
Dr. Susanna Naggie completed her undergraduate degrees in chemical engineering and biochemistry at the University of Maryland, College Park, and her medical education at Johns Hopkins School of Medicine. She conducted her internal medicine and infectious diseases fellowship training at Duke University Medical Center, where she also served as Chief Resident. She joined the faculty in the Duke School of Medicine in 2009. She is a Professor of Medicine and currently holds appointments at the Duke University School of Medicine, at the Duke Clinical Research Institute, and at the Durham Veterans Affairs Medical Center. Dr. Naggie is a clinical investigator with a focus in clinical trials in infectious diseases and translational research in HIV and liver disease. She is a standing member of the DHHS Panel on Antiretroviral Guidelines for Adults and Adolescents and the CDC/NIH/IDSA-HIVMA Opportunistic Infections Guideline. She is the Vice Dean for Clinical and Translational Research and Director for the Duke Clinical and Translational Sciences Institute.
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