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Updated: May 2, 2026

Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues
Published on: October 20, 2019
Study of hydatidosis-attributed mortality in endemic area
Moncef Belhassen-García1, Angela Romero-Alegria2, Virginia Velasco-Tirado3
1Seccion de Enfermedades Infecciosas, Servicio de Medicina Interna, Complejo Asistencial Universitario de Salamanca, CIETUS, IBSAL, Salamanca, Spain.
Cystic hydatid disease causes significant morbidity and mortality in endemic areas. Infectious complications from ruptured cysts are the leading cause of death, highlighting the risks of expectant management.
Area of Science:
- Parasitology
- Epidemiology
- Public Health
Background:
- Cystic hydatid disease (CHD) remains a significant public health concern in European Mediterranean regions.
- Despite being often perceived as benign, CHD contributes substantially to morbidity.
- Limited research exists on mortality directly attributed to human hydatidosis.
Purpose of the Study:
- To investigate the epidemiology and mortality rates associated with Echinococcus granulosus infection.
- To identify the primary causes of death resulting from E. granulosus infection in an endemic setting.
Main Methods:
- A 14-year retrospective study was conducted from 1998 to 2011.
- Data analysis focused on patients diagnosed with hydatid disease.
Main Results:
- Eleven deaths directly linked to hydatid disease complications were recorded among 567 diagnosed patients.
- Infectious complications accounted for 90.9% of deaths, while mechanical complications caused 9.1%.
- The case fatality rate was 1.94%, with an overall mortality rate of 3.1 per 100,000 inhabitants.
Conclusions:
- Hydatidosis continues to be a prevalent parasitic disease associated with considerable mortality.
- Rupture of cystic echinococcosis (CE) cysts leading to suppurative cholangitis is the primary driver of mortality.
- Expectant management strategies for hydatidosis carry significant risks and should be reserved for carefully selected cases.
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