Published in:
30-07-2021 | Shingles | Review Article
Abdominal Pseudohernia Secondary to Herpes Zoster: a Systematic Review
Authors:
Evie Yeap, Brian Hodgkins, Thomas Surya Suhardja
Published in:
Indian Journal of Surgery
|
Issue 4/2022
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Abstract
Abdominal wall pseudohernia is an unusual complication following herpes zoster. However, it can be confused with a true hernia and should be differentiated from other causes of pseudohernia. We review the published literature to describe the evidence around presentation, investigation, management, and prognosis of this condition. A MEDLINE search was performed in October 2020. The references of identified articles were searched. Studies were included if full text was available and if one case or more of abdominal wall paralysis caused by herpes zoster was described. We identified 72 articles describing 83 cases. The following information was extracted: age, sex, timing of rash and paresis, investigations and timing and completeness of recovery. This presentation occurred more in the elderly (average age of 66.9) and in males (72.6%). The most commonly involved level was T11. In most cases (76.2%), abdominal wall paralysis occurred after the cutaneous manifestations, after an average of 27.6 days. Six patients (7.14%) presented with concurrent cutaneous symptoms and pseudohernia. Seven patients (8.33%) presented with a pseudohernia first. Electromyography was performed in 35 cases (41.7%) and 31 had an abnormal result. Multiple resonance imaging was performed in 13 cases (15.5%): 5 showed an abnormality. Forty-one patients had a complete recovery at an average of 4.29 months. Sixteen patients (19.0%) only had partial recovery. Abdominal wall pseudohernia is an unusual sequel of herpes zoster infection with pathognomonic findings. Prognosis is good with complete or partial recovery for most patients.