3 doctors weighed in:

Why does bradycardia present in dengue?

3 doctors weighed in
Dr. Jerome Zacks
Internal Medicine - Cardiology
1 doctor agrees

In brief: Uncertain.

Whether it's a direct action of the virus, an immune response, cytokine action or the result of another circulating substance is uncertain.
However, the association is well-documented.

In brief: Uncertain.

Whether it's a direct action of the virus, an immune response, cytokine action or the result of another circulating substance is uncertain.
However, the association is well-documented.
Dr. Jerome Zacks
Dr. Jerome Zacks
Thank
Dr. Shaym Puppala
Internal Medicine

In brief: Relative bradycardia

A definition of bradycardia is a heart rate (hr) < 60 beats per minute.
Usually, hr increases by approx 10bpm per degree of fever.High fever with normal hr is "relative bradycardia;" hr is lower than expected. Relative bradycardia occurs in dengue for reasons felt to be related to the immune system, but exact mechanism as yet is unknown, to my knowledge.

In brief: Relative bradycardia

A definition of bradycardia is a heart rate (hr) < 60 beats per minute.
Usually, hr increases by approx 10bpm per degree of fever.High fever with normal hr is "relative bradycardia;" hr is lower than expected. Relative bradycardia occurs in dengue for reasons felt to be related to the immune system, but exact mechanism as yet is unknown, to my knowledge.
Dr. Shaym Puppala
Dr. Shaym Puppala
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1 comment
Dr. Shaym Puppala
(reference: Lateef A, Fisher DA, Tambyah PA. Dengue and relative bradycardia [letter]. Emerg Infect Dis [serial on the Internet]. 2007 Apr )
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