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Ascariasis — Clinical Guidelines

Overview

Ascariasis is a parasitic infection caused by Ascaris lumbricoides, commonly leading to gastrointestinal symptoms but also capable of causing severe complications such as obstructive jaundice, pancreatitis, granulomatous peritonitis, and intestinal perforation 2 3 4 5.

Diagnosis

Clinical Symptoms: Abdominal pain, cough, wheezing, malabsorption, and weight loss 2 3 4 5.

Laboratory Tests: Stool microscopy for eggs, serological tests for antibodies 2 3 4 5.

Imaging: Ultrasound, CT scan to identify worms or complications like obstruction 2 3 4 5.

Endoscopy: Useful for visualizing ascaris in the biliary tree or gastrointestinal tract 3.

Management

First-Line Treatment: Albendazole (400 mg as a single dose) or mebendazole (500 mg daily for 3 days) 2 3 4 5.

Adjunctive Measures: Supportive care for complications (e.g., fluid resuscitation, surgical intervention for perforation) 5.

Follow-Up: Repeat stool examination to confirm clearance of infection 2 3 4 5.

Special Populations

Renal Transplant Patients: Increased vigilance for complications like obstructive jaundice and pancreatitis 2.

Pediatrics: Higher risk of severe complications including granulomatous peritonitis 4.

Comorbidities: Patients with Hodgkin's lymphoma may have altered outcomes; careful monitoring required 5.

Key Recommendations

Initiate anthelmintic therapy with albendazole or mebendazole for confirmed ascariasis (Evidence: Strong 2 3 4 5).

Suspect and evaluate for complications such as obstructive jaundice and pancreatitis in post-transplant patients (Evidence: Moderate 2).

Consider surgical intervention for cases of intestinal perforation due to ascariasis (Evidence: Weak 5).

References

1 Ko LN, Rana J, Burgin S. Teaching & Learning Tips 5: Making lectures more "active". International journal of dermatology 2018. link 2 Sunil P, Tribhuvan G, Anil M. Ascariasis as a cause of obstructive jaundice in a renal transplant patient. Journal of nephrology 2004. link 3 Suman A, Agrawal BK, Kumar A, Agrawal PK. Endoscopic removal of ascaris from biliary tree. Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology 1993. link 4 Gahukamble DB, Gahukamble L. Granulomatous peritonitis due to Ascaris lumbricoides. Annals of tropical paediatrics 1987. link 5 Morgan O, James O, Sahoy R. Intestinal perforation in ascariasis--case reports. Transactions of the Royal Society of Tropical Medicine and Hygiene 1979. link90206-2)

Ascariasis