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Prevalence of hepatic encephalopathy in patients with non-cirrhotic portal hypertension: A systematic review and meta-analysis

  • SYSTEMATIC REVIEW and META-ANALYSIS
  • Published:
Indian Journal of Gastroenterology Aims and scope Submit manuscript

Abstract

Background

Hepatic encephalopathy, (HE) although commonly associated with cirrhosis, has also been reported in non-cirrhotic portal hypertension (NCPH). The importance of identifying and treating HE in NCPH lies in the fact that many patients may be wrongly diagnosed as having psychiatric or neurologic disorders. Hence, we aimed to systematically review the prevalence of HE in NCPH.

Methods

A comprehensive search of three databases (Medline, Embase and Scopus) was conducted from inception to November 2022 for studies reporting on the prevalence of minimal HE (MHE) and overt HE (OHE) in patients with NCPH. Results were presented as pooled proportions with their 95% confidence intervals (CI).

Results

Total 25 studies (n = 1487) were included after screening 551 records. The pooled prevalence of MHE in NPCH was 32.9% (95% CI: 26.7–39.0) without any difference between adult (32.9%, 95% CI: 23.5–42.3) and pediatric patients (32.6%, 95% CI: 26.1–39.1) (p = 0.941). There was no significant difference in the prevalence between patients with NCPH and compensated cirrhosis with odds ratio of 1.06 (95% CI: 0.77–1.44). The pooled event rate for prior history of OHE in NCPH was 1.2% (95% CI: 0.3–2.1).

Conclusion

Around one-third of the patients with NCPH have MHE, irrespective of age group. OHE is extremely rare in NCPH and is usually associated with a precipitating factor.

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Authors and Affiliations

Authors

Contributions

Conceptualization: SG, AS; data curation: SG, SG, SA; formal analysis: SG, AS, SA; funding acquisition: N/A; investigation: SG, AS, SA, KK; methodology: SG, SA; project administration: SG, AR; resources: SG, AS, SA; software: SG; supervision: SG, KK; validation: SG, AR; visualization: SG; roles/writing — original draft: SG, AS, SA; writing — review and editing: SG, AS, SA, KK, AR.

Corresponding author

Correspondence to Akash Roy.

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 SG, AS, SA, KK and AR declare no competing interests.

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Giri, S., Singh, A., Angadi, S. et al. Prevalence of hepatic encephalopathy in patients with non-cirrhotic portal hypertension: A systematic review and meta-analysis. Indian J Gastroenterol 42, 642–650 (2023). https://doi.org/10.1007/s12664-023-01412-1

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  • DOI: https://doi.org/10.1007/s12664-023-01412-1

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