Overview
Amebiasis, caused by Entamoeba histolytica, is a significant diarrheal disease prevalent in low- and middle-income countries, including India, often linked to poor sanitation and hygiene 1.Diagnosis
Clinical Symptoms: Diarrhea, abdominal pain, bloody stools 1.
Laboratory Tests: Stool microscopy for cysts and trophozoites, serology for antibodies 1.
Imaging: Colonoscopy may reveal colonic ulcers or strictures 4.
Endoscopic Findings: Visualization of ulcers, narrowing, or strictures in the colon 4.Management
First-Line Treatment: Metronidazole (oral, 7-10 days) for acute invasive disease 1.
Adjunctive Therapy: Follow-up with iodoquinol or paromomycin for intestinal eradication 1.
Drug Resistance: Consider verapamil to inhibit efflux pumps in resistant cases 2.Special Populations
HIV-Infected Patients: Higher prevalence (1-17.5%) and potentially more severe disease 1.
Pediatrics and Elderly: Specific management guidelines not detailed in provided abstracts; individualized care recommended based on severity 1.Key Recommendations
Conduct systematic reviews to estimate reliable nationwide prevalence and geographic distribution of amebiasis, particularly in endemic regions (Evidence: Strong 1).
Utilize stool microscopy and serology for accurate diagnosis of amebiasis (Evidence: Moderate 1).
Initiate metronidazole therapy for confirmed invasive amebiasis, followed by secondary agents like iodoquinol for eradication (Evidence: Moderate 1).
Consider drug resistance mechanisms, such as P-glycoprotein involvement, in treatment-refractory cases (Evidence: Weak 2).
Monitor and manage HIV-infected patients with heightened vigilance due to increased susceptibility (Evidence: Moderate 1).References
1 Gupta P, Singh KK, Balodhi A, Jain K, Deeba F, Salam N. Prevalence of Amoebiasis and Associated Complications in India: A Systematic Review. Acta parasitologica 2022. link
2 Bañuelos C, Orozco E, Gómez C, González A, Medel O, Mendoza L et al.. Cellular location and function of the P-glycoproteins (EhPgps) in Entamoeba histolytica multidrug-resistant trophozoites. Microbial drug resistance (Larchmont, N.Y.) 2002. link
3 Scholze H, Schulte W. Purification and partial characterization of the major cysteine protease from Entamoeba invadens. Biomedica biochimica acta 1990. link
4 Smith MA. Multiple colonic stricture formation and amoebiasis. A case report. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 1976. link