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Free Content Evaluation of syphilis in patients with HIV infection in Nigeria

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Summary Objective 

To document the manifestations of syphilis among patients with concurrent HIV infection over a 12-month period. Method 

Descriptive, cross-sectional, hospital-based study of all adult patients with syphilis and HIV infection who attended the skin clinic of the University of Nigeria, Teaching Hospital, Enugu, between July 2000 and June 2001. A standardized questionnaire was used to record age, sex, marital status, occupation and risk factor for HIV infection; initial site of onset of rash/ulcers, duration of the illness, any concomitant affection of mucosa, hair and nails as well as treatments received by each patient prior to presentation. Morphological distribution of lesions, mucosal surface (conjuctival, vulval and rectal) examinations and documentation of concomitant disorders with HIV were noted by the examining dermatologist. Lesional biopsy and dark-field microscopy were undertaken to confirm diagnosis where serologic (non-treponemal and treponemal specific) tests for syphilis were inconsistent with clinical suspicion. Each patient had a routine chest x-ray, mantoux and purified protein derivative (PPD) status taken. Results 

Thirty-one patients (21 males) with concurrent syphilis and HIV were seen during the study period. Primary syphilis was diagnosed in nine (29%), secondary syphilis in 20 (64.5%) and latent syphilis in two (6.5%). Neurosyphilis was not observed. Prevalence of syphilis for these patients with concurrent HIV was 2.1%. Mean duration of syphilis was 3.9 months ± 1.4 and lesions of greatest concern occurred mainly on the genitalia. The glans penis was affected in 10 (32.3%) cases, the penile shaft in seven (22.6%), the oral cavity in five (16.1%), the rectum in six (19.4%) and the vulva in three (0.9%) cases. Nine (29.1%) patients had a history of primary syphilitic chancre, 19 (61.3%) had a past history of sexually transmitted disease (STD) – particularly genital ulcers – while three (9.7%) could not recall any past history of STD. Eighteen (59.3%) had a history of unprotected sex, 16 (51.7%) had multiple sexual partners, four (13.3%) had had oral sex, and one anal sex (3.3%); none admitted to being bisexual. Other relevant risk factors for HIV transmission were blood transfusion within 5 years for three (9.7%) and intravenous drug use in two (6.5%). Some patients had more than one condition as a potential source of exposure. Serological tests were weakly reactive in 17 (48.4%), strongly reactive in nine (29%) and non-reactive in five (16.1%) patients. Three patients exhibited prozone phenomenon. Treatment comprised the syndromic approach, which currently is advocated for use in primary healthcare centres without facilities for aetiological diagnosis of sexually transmitted infections. Conclusion 

Our cases with concurrent syphilis and HIV/AIDS had unusual manifestations, responded to treatment more slowly and died sooner than cases described in Western literature due to generally lower levels of health.

Keywords: HIV/AIDS; West Africa; serology; syndromic management; syphilis associations

Document Type: Research Article


Affiliations: 1: Department of Dermatology, University of Nigeria Teaching Hospital, Enugu, Nigeria 2: Department of Chemical Pathology, University of Nigeria Teaching Hospital, Enugu, Nigeria

Publication date: January 1, 2005

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