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Congenital Syphilis Slips Through the Cracks: Lessons from Guam - PowerPoint PPT Presentation

National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention Division of STD Prevention Congenital Syphilis Slips Through the Cracks: Lessons from Guam Mary L. Kamb,


  1. National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention Division of STD Prevention Congenital Syphilis Slips Through the Cracks: Lessons from Guam Mary L. Kamb, MD, MPH CDC Division of STD Prevention, Atlanta, GA Bernadette Schumann, MPA STI Program, Guam Department of Public Health and Social Services

  2. Syphilis  Highly transmissible • Sexually through vaginal, rectal and oral sex (to ~ 1 year) • From mother-to-child during pregnancy ( in utero infection) up to 4+ years after maternal exposure  Most infections are asymptomatic or unrecognized  Fetal and infant sequelae can be catastrophic  Exquisitely sensitive to injectable penicillin regimens • No reported resistance Treponema pallidum ssp. pallidum

  3. Mother-to-Child Transmission of Syphilis (Congenital Syphilis)  High risk pregnancy - Untreated, up to 80% of P/S cases → fetal or infant death or other adverse birth outcome - Untreated, ~ 52% of asymptomatic (latent) infections → an adverse birth outcome*  Adverse birth outcomes* include - Stillbirth (after 20 weeks): 21% of affected pregnancies - Neonatal death: 9% - Prematurity or low birth weight: 6% - Congenital infection in newborn: 16%  Early testing important Syphilitic stillbirths are often not recognized * Gomez et al, Bull World Health Org, 2013: Meta-analysis evaluating studies evaluating birth outcomes of women with and without syphilis, primarily asymptomatic (latent) infections

  4. U.S. Syphilitic Stillbirths by Gestational Age, 1995-2016 Syphilitic Stillbirths by EGA in U.S., 1995-2016 59 57 Syphilitic Stillbirths 52 46 45 40 38 37 36 35 34 33 30 29 28 24 23 22 21 16 11 5 3 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 99 UNK Estimated Gestational Age (weeks)

  5. U.S. Syphilitic Stillbirths by Gestational Age, 1995-2016 Syphilitic Stillbirths by EGA in U.S., 1995-2016 59 57 Syphilitic Stillbirths 52 46 45 40 38 37 36 35 34 33 30 29 28 24 23 22 21 16 11 5 3 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 99 UNK Estimated Gestational Age (weeks)

  6. CDC STI Screening Recommendations in Pregnancy*  Syphilis - Routine screen at 1 st prenatal visit - Re-screen in 3 rd trimester (28-32 weeks) and at delivery if: - high prevalence setting - high personal/partner risk - positive screening oddslot test in 1 st trimester - Do not discharge neonate if maternal serologic status is unknown - Promptly treat mother with parenteral penicillin (if allergic, desensitize) & treat all sex partners - Test women with a stillborn or early infant death * Consistent with ACOG Recommendations with minor wording differences https://www.obgproject.com/2016/10/16/std-screening-pregnancy-cdc-recommendations/

  7. Guam  Largest U.S. territories in Pacific  Population 163,000  Small island: 544 sq. km  Common ethnic groups: - Chamorro - Asian - Chuukese (FSM state) - Other Pacific Islander

  8. Guam: Increasing, high P/S syphilis case rates in reproductive-aged women, new CS cases (2013) Rate per 100,000 live births Data not available 0 1.8 – 3.4 4.0 – 7.2 7.6 – 13.0 14.7 – 19.1 19.5 – 63.3 30.4 per 100,000 live births

  9. Epi-Aid sought to answer the following questions:  What is the coverage of syphilis (and other STI) screening in Guam? • What proportion of pregnant women receive recommended STI screening tests?  For women with lack of or late screening for syphilis, what factors are associated with this? • What factors are amenable to intervention? • Systems level, personal behavioral and other factors

  10. Epi-Aid Methods Retrospective cohort study:  All women delivering a live or stillborn infant at Hospital during calendar year 2014 - N=865, excluding 1 infant from each of 5 twin pairs  Standardized chart abstractions - Demographic data, reproductive health history, timing of prenatal visits, dates and results of syphilis and other STI testing, insurance status, type of provider  Linked lab test results from public and private laboratories in Guam - Allowed timing of testing to be determined

  11. Epi-Aid Findings Good news/Bad news  ~ 75% of women had HIV, CT/GC screening, 90% HBV screening during pregnancy  94.5% of women had at least 1 syphilis test during pregnancy or at labor/deliver - BUT … only 2/3 had syphilis screening prior to the 3 rd trimester - Of the women with late or no screening, almost half (40%) had > 4 prenatal visits - Of these, many initiated care in the 1 st trimester (missed opportunity) - Few women (0.5%) had repeat testing during 3 rd trimester or at delivery  Birth tourism did not seem major contributor  Evaluation of 2014 stillbirths (N=12) identified 1 additional CS case - not been previously reported to DOPH

  12. Epi-Aid Findings – Factors associated with late/lack of screening  Late screening = 25-32 weeks; Very late screening = >32 weeks • Lower education : - “HS only”: 2-fold risk vs. some college - <HS: 3-fold risk vs. some college • Certain ethnic groups (Chuukese) • Provider type : - Public provider: 2-fold higher vs. private provider • Lack of insurance : - No insurance: 4.5-fold risk vs. private insurance - Medicaid: > 2-fold risk vs. private insurance - MIP: ~ 4-fold risk vs. private insurance

  13. Summary: Prenatal syphilis screening in Guam  One in three women were screened late or not at all during pregnancy - ~40% had four or more prenatal visits  Late or no screening associated with: - Delayed or no prenatal care and low number of visits - No insurance, Medicaid, MIP - Public providers  Guam findings relevant to U.S. states?

  14. Follow up – Root causes  Perceived risk low : - Women attending prenatal care at public clinics are referred to a lab for testing (testing not done in the clinic) - Some women did not go to get their blood tests (low perceived risk by women?) • Are women aware of what/why prenatal tests are done?  Systems level issues : - Substantial administrative difficulty achieving Medicaid and MIP care (are women able to be tested at initial visit?) - No standing orders - No tickler system to verify lab tests were done; paper records

  15. Follow up – Root causes  Provider education : some unaware of expanded recommendations - Rescreening during 3 rd trimester/delivery - Do not release neonates until maternal syphilis testing results return  Limited communications e.g., MCH Dept. (covers prenatal care) and SHP - DoPH SHP not included in meetings on Stillbirths or Neonatal Deaths - Providers depend upon laboratories reporting results to DoPH  Cultural/political - High risk pregnancies among Chuukese women not previously fully recognized

  16. Next steps  Local dissemination of results to multiple departments  Educational opportunity to update providers on recommendations and results of Epi-Aid  Identifying routine communications strategies MCH and SHP, such as - MCH providers have contact names in DoPH - Routine meetings/FIMR attendance  SHP and other DoPH programs exploring other options, e.g., - Potential of initiating rapid syphilis testing in public clinics - Electronic lab records with tickler systems - Evaluating requirements for women using Medicaid/MIP  Special attention to high risk women - Lower education, those without insurance - Reaching out to DoPH FSM: Special attention to Chuuk on prenatal care

  17. Global Call to Eliminate MTCT of Syphilis (Congenital Syphilis)  Global elimination initiative launched in 2007 (WHO)  WPRO Elimination of MTCT of HIV and Syphilis since 2009  WPRO Elimination of Parent-to-Child Transmission of HIV, Syphilis and Hepatitis B virus (2017) - 2017 Strategic Framework - http://www.eptctasiapacific.org  Program targets/ Elimination targets - > 95% women attend antenatal care - > 95% of women tested for syphilis and HIV - > 95% of seropositive women treated for syphilis and/or HIV - Congenital syphilis case rate < 50 per 100,000 live births - HIV infant case rate < 50 per 100,000 live births - MTCT transmission of HIV < 2% (< 5% in breast feeding women) http://www.who.int/reproductivehealth/congenital-syphilis/en/

  18. Acknowledgements – Epi-Aid Team  Guam Department of Public Health and Social Services - Bernie Schumann - Ester Mallada - Vince Aguon - Anne Marie Santos  Guam Memorial Hospital Authority - Michael Klemme  Centers for Disease Control and Prevention - Susan Cha (EIS Officer leading investigation) - Winston Abara - Tranita Anderson - Tasneem Malik - Roxanne Barrow - Mia DeSimone - Mary Kamb

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