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The role of microbes and parasites in recurrent pyogenic cholangitis
Zuber Ansari1, Sukanta Ray2, Somak Das2
1Division of Surgical Gastroenterology, Department of General Surgery, FH Medical College and Hospital, Agra, India.
Objectives:
Recurrent pyogenic cholangitis (RPC) and ascariasis are prevalent in eastern India. Exact pathogenesis of RPC is still a matter of controversy. Hepatobiliary Ascaris infestation has been considered one of the causative factors in Eastern Asia, but conclusive evidence from India is lacking. RPC is associated with multi-drug-resistant (MDR) bacteria, which is a significant source of morbidity and mortality. This study aimed to assess the role of hepatobiliary ascariasis in pathogenesis of RPC and to study microbial profile and their implications in managing RPC patients.
Material And Methods:
Consecutive patients with biliary stones who underwent surgery between March 2020 and December 2021 in a tertiary centre in eastern India were divided into RPC and non-RPC groups. Surgically retrieved samples of bile and biliary stones were sent for bacterial culture and microscopic and histopathological examination to identify the evidence of ascariasis in both groups and to study the microbial profile in RPC group.
Results:
Eight out of 54 patients (14.8%) in the RPC group had evidence of hepatobiliary ascariasis. None of the patients in non-RPC group showed evidence of ascariasis. Klebsiella was the most common bacterial pathogen on bile culture, and 79% of bacterial isolates were MDR pathogens. Carbapenem group of antibiotics showed the highest sensitivity (66.6%) against bacterial culture growth in RPC patients.
Conclusion:
This study showed a higher prevalence of hepatobiliary ascariasis in patients with RPC, but a conclusive etiological role is still lacking. RPC is associated with high incidence of MDR bacteria. Carbapenems may be considered the empirical antibiotic of choice in RPC.
Insights
Hepatobiliary ascariasis was found in 14.8% of recurrent pyogenic cholangitis (RPC) patients in India, suggesting a potential link. Recurrent pyogenic cholangitis cases were also associated with multi-drug-resistant bacteria, indicating carbapenems as a possible treatment.
Area of Science:
- Hepatology
- Infectious Diseases
- Microbiology
Background:
- Recurrent pyogenic cholangitis (RPC) is prevalent in Eastern India, with its exact cause debated.
- Hepatobiliary Ascaris infestation is a suspected factor in RPC pathogenesis in Eastern Asia, but Indian data is limited.
- RPC is frequently linked to multi-drug-resistant (MDR) bacteria, contributing significantly to patient morbidity and mortality.
Purpose of the Study:
- To investigate the potential role of hepatobiliary ascariasis in the development of RPC.
- To characterize the microbial profile of RPC patients.
- To evaluate the implications of microbial findings for managing RPC.
Main Methods:
- A comparative study of consecutive patients with biliary stones undergoing surgery from March 2020 to December 2021 in Eastern India.
- Patients were categorized into RPC and non-RPC groups.
- Bile and biliary stone samples were analyzed for bacterial culture, microscopy, and histopathology to detect ascariasis and identify microbial pathogens.
Main Results:
- Hepatobiliary ascariasis was identified in 14.8% of RPC patients (8 out of 54), with no cases found in the non-RPC group.
- Klebsiella was the predominant bacterial pathogen isolated from bile.
- A high incidence of MDR pathogens (79%) was observed in RPC patients, with carbapenem antibiotics showing the highest sensitivity (66.6%).
Conclusions:
- The study indicates a higher prevalence of hepatobiliary ascariasis in RPC patients, although a definitive etiological link requires further investigation.
- RPC is strongly associated with a high prevalence of MDR bacteria.
- Carbapenems may be considered a suitable empirical antibiotic choice for managing RPC.
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