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This oral submission discusses the risk factors and recommendations for HIV transmission in rape survivors based on clinical studies and cases, emphasizing the need for standardized examination protocols and timely intervention.
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Oral Submission to Portfolio Committee for Justice and Constitutional Development Lynette Denny Department Obstetrics & Gynaecology University of Cape Town/Groote Schuur Hospital
Introduction • No randomised placebo-controlled trials to demonstrate efficacy of PEP after sexual exposure • Neither ethically nor logistically possible • Presumed efficacy based on: • Reduction in sero-conversion after occupational exposure • Reduction in maternal – child transmission • Animal studies using SIV • Few uncontrolled studies of use of PEP in rape survivors suggest effective
Factors Influencing Risk of Transmission of HIV due to Rape Type and frequency of exposure HIV Probability rapist HIV positive Clinical status of HIV positive rapist
Estimated Risk of Transmission of HIV* *Bamberger J et al. Am J Med 1999;106:323 - 326
Probability rapist HIV positive • Unknown whether sex offenders have higher rates of HIV infection • In USA, HIV prevalence among prisoners 14 x higher than US population • High rates of HIV infection reported among SA prisoners • Assumption that HIV prevalence higher among rapists based on • Nature of their high risk sexual behaviour • Higher rates of social dysfunction (substance abuse etc)
Clinical status of Rapist if HIV positive • Increased risk of transmission • AIDS • Low CD4 count (<200) • P24 antigenaemia • Highest in ‘window period’ • Late stage disease • Concomitant STD • Ejaculation during rape
Risk factors specific to rape/sexual assault • Type and frequency of exposure in SA • High levels of accompanying violence • Increased risk of micro-trauma to vagina • Genital injury common • Anal rape • Multiple penetrations • Multiple perpetrators • Ejaculation during rape ( 25 - 50%)
Recommendations • Low risk • Single perpetrator • Single act of penetration • No semen found in vagina • No genital or other injuries • Vaginal penetration only • Zidovudine 300 mg bi-daily for 28 days
Recommendations • High risk • More than one perpetrator • Multiple penetrations • Semen found in vagina • Genital or other injuries • Anal penetration • Combination Zidovudine 300 mg bi-daily and 3TC 150 mg bi-daily for 28 days
Standardised Sexual Assault Examination • Medical officers trained in use of protocol • Phased implementation at two hospitals in Cape Town • Included provision of Zidovudine to all HIV negative women presenting within 72 hours of rape • All protocols sent to LD for quality control • Data entered into computerised data-base • Analysis of 460 cases seen between January 1998 – September 2001
Medical and Forensic Examination • At time of rape % • Pregnant 7 • Using contraception 35 • Not using contraception 65 • Teenagers 40 • Prophylaxis given against • Pregnancy 58 • STDs 78 • PEP for HIV 66 • Forensic examination performed 80
No. of Cases Reported to the Police and Charge of Rape Laid Unknown No charge laid Charge laid 0 100 200 300 400 Number of cases
Place of Rape 0% 5% 10% 15% 20% 25% 30% 35% 40% Rapist's Home Open Space Victim's Home Motor Car Alley Terminus Public Toilet Beach Work Place
Number of Perpetrators in cases more than one Rapist 50% 40% 30% 20% 10% 0% 2 3 4 5 6 7 8 9 10 Number ofperpetrators
Measure of Violence Reported Type of violence % • Grabbed 36 • Hit 40 • Punched 22 • Kicked 17 • Throttled 20 • Verbally Abused 48 • Weapons used 47
Sexual Acts performed by Rapists % • Vaginal penetration 90 • Sodomised 8 • Fellatio 5 • Cunnilingus 2 • Semen found in vagina 26
Age Distribution of Women Anally Raped 35% 30% 25% 20% % of cases 15% 10% 5% 0% 10-14 15-19 20-24 25-29 30-34 35-39 Age
Clinical Evidence of Trauma % • Body injuries 30 • Neck injuries 13 • Face and scalp 31 • Vulval injuries 46 • Vaginal injuries 26 • Anal injuries 7
What have we learned about Rape Survivors presenting to a Health Facility in Cape Town? • Commonest age group presenting to health facility with complaint of rape is aged 15 – 19 yrs • 75% of women present to health facilities within 24 hours of being raped (NB prevention HIV and pregnancy) • High levels of accompanying violence • Weapon used in just under 50% of rapes • 8 out of 100 women raped are, in addition, raped anally • In a quarter of rapes there are multiple perpetrators • Physical evidence of injury to body and genital tract documented in large number of cases
What have we learned about Rape Survivors presenting to a Health Facility in Cape Town? • Survivors are at significant risk of: • Serious physical injury • Acquisition all STDs, including HIV • Pregnancy • Rape Trauma Syndrome
Conclusions • Management of Rape Survivors should be integrated and provided in one-stop rape centres • Key elements of management include: • Prevention of STIs • Prevention Pregnancy • Prevention of Rape Trauma Syndrome • Treatment of physical, emotional and psychological sequelae of rape • Collection of appropriate forensic evidence
Conclusions • Major obstacles to correct management rape survivors include: • Failure to integrate functions of SAPS, Justice, Health and Social Services • Inadequate training of health care professionals • Underestimation of degree specialisation required to perform adequate forensic examination • Lack of understanding of long-term sequelae and costs of incorrect management of rape • Lack of true political will
Conclusions • Rape is one of the most important public health problems of women in South Africa with serious and costly long term sequelae for women and their families • Prevention of rape, arrest and conviction of rapists and implementation of efficient, skillful and comprehensive rape management urgently required