How is scrub typhus infection diagnosed?

Question

Hello doctor,

A 37-year-old woman came back from a hiking trip with five days of high fever (39.3°C), severe headache, swollen lymph nodes, and a wound (eschar) behind her right knee. Her laboratory results show low white blood cell count (2,800), low platelets (85,000), high ALT (145), high AST (167), and high CRP (88). Scrub typhus is suspected. Prophylactic steroids are not advised. Please monitor for hepatitis, bleeding, kidney injury, lung issues, brain inflammation, and septic shock.

Kindly help.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Your symptoms of fever, headache, lymphadenopathy, and eschar along with recent travel strongly suggest scrub typhus. Your laboratory findings of white blood cell count (WBC) at 2,800, low platelets at 85,000, and elevated liver enzymes (alanine aminotransferase [ALT] 145, aspartate aminotransferase [AST] 167) are also consistent with this diagnosis.

The first-line treatment is often Doxycycline (100 mg twice daily for seven to 10 days). Steroids are generally not recommended for uncomplicated scrub typhus. However, in cases with severe complications (for example., meningoencephalitis, myocarditis, or acute respiratory distress syndrome [ARDS]), adjunctive steroids may be considered on a case-by-case basis.

Monitor for these complications:

Meningoencephalitis: Confusion, seizures.
Myocarditis: Arrhythmias, heart failure.
Acute respiratory distress syndrome (ARDS): Worsening oxygenation.
Septic shock: Persistent hypotension.

Close monitoring of platelets, liver function, and neurological status is crucial. If there is no improvement within 48 hours of Doxycycline, consider Azithromycin as an alternative. Please let me know if there has been any rash or worsening respiratory symptoms.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.