Case Report

Strongyloides stercoralis Dissemination and Hyperinfection Associated with Long-Term Steroid Treatment in a Neurosurgical Population

Table 1

A summary and comparison between the two clinical cases.

Case 1Case 2

Age (years)/gender77/male47/male

Possible/probable exposure
Date/timing of exposure
Cape Verde
From 1944 to 1965
Guinea-Bissau
From several years to months before

Risk factors for infection and HIS/DS (3, 7, 8)
 AlcoholismNoNo
 HIV-infectionNoNo
 HTLV-1 infectionNoNo
 Hematologic malignancyNoNo
 Solid organ transplantNoNo
 Immunosuppressive therapyYesYes
  TypeCorticosteroid (dexamethasone)Corticosteroid (dexamethasone)
  Cumulative dose equivalence (prednisone) until HIS/DS1426 mg3067 mg
  Time from beginning immunosuppression to HIS/DS32 days37 days

Other comorbiditiesHypertension
Dyslipidaemia
Colon adenocarcinoma in remission
Chronic kidney disease
Previous hepatitis B

Confirmed organ/system involvement during DSGastrointestinal
Pulmonary
Urinary
Central nervous system
Gastrointestinal
Pulmonary
Urinary

Strongyloidiasis therapy givenIvermectin 200 μg/kg id (oral, NGT)
Albendazole 400 mg bid (oral, NGT)
Ivermectin 200 μg/kg id (oral, NGT) 10 days
Ivermectin 200 μg/kg id (subcutaneous) 5 days
Albendazole 400 mg bid (oral, NGT) 15 days

Complications(i) Bacteraemia due to K. pneumoniae
(ii) Ventilator-associated pneumonia due to KPC-producing K. pneumoniae
(iii) Meningitis to E. faecium
(i) CMV reactivation with possible colitis
(ii) Pulmonary aspergillosis
(iii) Bacteraemia due to K. pneumoniae
(iv) Bloodstream infection due to C. albicans
(v) HSV-1/VZV oral mucositis
(vi) HBV reactivation

Outcome and time to outcome (after diagnosis)Cure of strongyloidiasis in 4 weeks
Death after 61 days (due to hospital-acquired SARS-CoV-2 pneumonia)
No cure for strongyloidiasis
Death after 15 days

Note: CMV: cytomegalovirus; DS: disseminated strongyloidiasis; HBV: hepatitis B virus; HIS: hyperinfection syndrome; HIV: human immunodeficiency virus; HSV-1: herpes virus simplex 1; HTLV-1: human T-lymphotropic virus 1; KPC: Klebsiella pneumoniae carbapenemase; NGT: nasogastric tube; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2; VZV: varicella zoster virus.