Management of Dengue with Warning Signs

Recognition of Warning Signs

The World Health Organization recommends recognizing warning signs that indicate patients at risk for severe dengue, including severe abdominal pain or persistent vomiting, mucosal bleeding, lethargy, restlessness, or altered mental status, rising hematocrit with rapidly falling platelet count, hepatomegaly, and clinical fluid accumulation 2, 1
Warning signs such as severe abdominal pain, mucosal bleeding, lethargy, restlessness, or altered mental status, and rising hematocrit with rapidly falling platelet count are associated with an increased risk of severe disease 3, 4

The American College of Physicians recommends hospitalization for patients with dengue warning signs, with the primary goal of preventing progression to dengue shock syndrome through careful observation during the critical phase (days 3-7 of illness) 1
Initial assessment upon admission should include complete blood count with hematocrit and platelet count, liver function tests, coagulation profile if bleeding is present, and blood and urine cultures if fever persists beyond the expected course 4, 3, 1

The Centers for Disease Control and Prevention recommends oral rehydration as the cornerstone for stable patients with warning signs, with a goal of exceeding 2500 mL daily using oral rehydration solutions 1, 4
For patients developing shock, administer 20 mL/kg isotonic crystalloid bolus over 5-10 minutes, and reassess immediately after bolus completion 1, 4
Moderate-quality evidence shows that colloids achieve faster resolution of shock and require less total volume than crystalloids 1

The American Academy of Pediatrics recommends acetaminophen at standard doses as the only acceptable analgesic for pain and fever control, and never using aspirin or NSAIDs due to increased bleeding risk and platelet dysfunction 1, 4, 3

For significant bleeding, blood transfusion may be necessary with close monitoring of hemoglobin and hematocrit 1, 3
For persistent hypoperfusion, titrate epinephrine as the first-line vasopressor for cold shock with hypotension, and norepinephrine for warm shock with hypotension 1

Patients can be safely discharged when they are afebrile for ≥48 hours without antipyretics, have resolution or significant improvement of symptoms, stable hemodynamic parameters for ≥24 hours without support, adequate oral intake and urine output, and laboratory parameters returning to normal ranges 4, 1