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Caudate lobe amebic abscesses: percutaneous image-guided aspiration or drainage

  • Interventional Radiology
  • Published:
Abdominal Radiology Aims and scope Submit manuscript

Abstract

Background

Amebic liver abscess is the most common type of liver abscess on a worldwide basis, with caudate lobe being a relatively uncommon location for its occurrence. Abscess in caudate lobe of liver is often considered a challenging location for image-guided percutaneous drainage due to its difficult-to-access location along with close relationship with major vessels at porta hepatis.

Purpose

This study aims to demonstrate safety and efficacy of percutaneous drainage for caudate lobe amebic abscess.

Materials and methods

In this retrospective study, hospital database was electronically searched for patients having caudate lobe amebic abscess that underwent percutaneous catheter drainage/needle aspiration (PCD/PNA) between January 2016 and January 2021. The etiology, risk factors, microbiology, complications, different approaches for PCD/PNA, and their outcome were studied and reported.

Results

Of 30 patients having caudate lobe amebic abscess treated with PCD/PNA, solitary caudate lobe abscess was seen in 29, whereas one patient had more than one abscesses in caudate lobe. Contained and free intraperitoneal rupture of the abscess were seen in 9 (30%) and one patient, respectively. Ten (32%) patients had associated vascular thrombosis, while 2 patients were found to have abscess-biliary communication. Twenty-six (86.7%) patients were treated with PCD, while remaining 4 (13.3%) with PNA. On Univariate analysis, factors such as volume, multilocularity, and contained rupture of the abscess were found to be significantly increasing the duration of percutaneous drainage (PCD), while only multilocularity (p value 0.007) continued to show statistical significance on Multivariate analysis. Venous thrombosis and duration of catheter drainage were the two factors found to have significant influence on the length of hospital stay on Univariate as well as Multivariate analysis (p value 0.05 and 0.001, respectively). The rates of catheter manipulation were also significantly higher in patients with abscess showing complex internal configuration (heteroechoic contents and/or multilocularity). Technical and clinical success rates of 100% and 96.7% were achieved through percutaneous interventions (PCD/PNA), despite the complex location of abscesses and associated complications, with no incidence of vascular injury.

Conclusion

Liver abscess in caudate lobe can be accessed by different routes for percutaneous drainage, despite being surrounded by large vessels and its deep location, without major complications. Thus, PCD/PNA may be considered as a first-line therapy for the management of caudate lobe amebic abscesses in adjunct to medical therapy.

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Authors and Affiliations

  1. Department of Interventional Radiology, Institute of Liver and Biliary Sciences, Vasant Kunj, New Delhi, India

    Tanya Yadav, Ranjan K. Patel, Akash Bansal, Navojit Chatterjee, Yashwant Patidar & Amar Mukund

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  1. Tanya Yadav
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  2. Ranjan K. Patel
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  3. Akash Bansal
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  6. Amar Mukund
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Correspondence to Amar Mukund.

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The authors declare that they have no conflict of interest.

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Waived off due to retrospective nature of study.

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Written informed consent was taken from patients prior to procedure.

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Yadav, T., Patel, R.K., Bansal, A. et al. Caudate lobe amebic abscesses: percutaneous image-guided aspiration or drainage. Abdom Radiol 47, 1157–1166 (2022). https://doi.org/10.1007/s00261-021-03395-z

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  • DOI: https://doi.org/10.1007/s00261-021-03395-z

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