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  • Title: [Anal herpes simplex virus infections].
    Author: Rübben A.
    Journal: Hautarzt; 2020 Apr; 71(4):293-297. PubMed ID: 31965208.
    Abstract:
    BACKGROUND: Herpes simplex virus (HSV) type 1 and type 2 may infect the anal region and induce aphthous ulcers. HSV-induced proctitis may be severe with fever, anal pain, anal bleeding, and diarrhea. OBJECTIVES: The pathogenic agents and treatment are reviewed. MATERIALS AND METHODS: A review of the current literature was performed. RESULTS: The shift to later primary infections with HSV1 and changes towards more frequent oro-genital and oro-anal sex has increased the incidence of HSV1-induced primary anal infections. Due to frequent recurrences, HSV2 remains the most common cause of anal HSV infection. Anal and genital HSV infections are a risk factor for subsequent HIV infection. In case of suspicion, pathogen detection by polymerase chain reaction (PCR) should be performed and other sexually transmitted diseases should be excluded. HSV proctitis may mimic inflammatory bowel disease. Treatment should include antiviral medication as in genital herpes simplex. CONCLUSIONS: HSV may induce perianal infections, anal infections and HSV proctitis. Diagnosis of HSV1 and HSV2 using PCR is recommended. Anal and genital HSV infections are a risk factor for subsequent HIV infection. The risk is higher for HSV2 infection due to more frequent recurrences.
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