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Chapter 7 Sexually Transmitted and Other Infections Copyright © 2016 by Elsevier Inc. All rights reserved. Learning Objectives Describe prevention of sexually transmitted infections in women, including risk reduction measures. Differentiate signs, symptoms, diagnosis, and management of nonpregnant and pregnant women with selected sexually transmitted bacterial infections (chlamydia, gonorrhea, syphilis). Examine the care of nonpregnant and pregnant women with selected sexually transmitted viral infections (human immunodeficiency virus [HIV]; hepatitis A, B, and C; human papillomavirus; genital herpes). Copyright © 2016 by Elsevier Inc. All rights reserved. 2 Learning Objectives (Cont.) Compare and contrast signs, symptoms, and management of selected vaginal infections in nonpregnant and pregnant women. Discuss the effect of group B streptococci (GBS) on pregnancy and management of pregnant women with GBS. Identify the effects of TORCH infections on pregnancy and the fetus. Describe the health consequences (e.g., ectopic pregnancy, infertility) for women who are infected with reproductive tract infections. Review principles of infection control for HIV and blood-borne pathogens. Copyright © 2016 by Elsevier Inc. All rights reserved. 3 Prevention Primary prevention Primary prevention the most effective way of reducing STIs in women Secondary prevention Prompt diagnosis and treatment can prevent personal complications and transmission to others Copyright © 2016 by Elsevier Inc. All rights reserved. 4 Prevention (Cont.) Risk reduction measures Knowledge of partner Reduction of the number of partners Low-risk sex Avoiding exchange of body fluids Vaccination Copyright © 2016 by Elsevier Inc. All rights reserved. 5 Prevention (Cont.) Risk reduction measures Physical barriers • Condoms Chemical barriers • Nonoxynol-9 Communication • Expressing feelings and fears • Attention to partner’s response • Nurses must suggest strategies to enhance a woman’s condom negotiation and communication skills. Vaccination Copyright © 2016 by Elsevier Inc. All rights reserved. 6 Bacterial Sexually Transmitted Infections Chlamydia trachomatis Most common and fastest spreading STI • Infections often silent and highly destructive • Difficult to diagnose • Sexually active women ages 15 to 24 years have the highest rates of infection, with women ages 18 to 20 years having the highest rates (CDC, 2012e). Screening and diagnosis • Asymptomatic and pregnant women • Comparisons of diagnostic procedures Copyright © 2016 by Elsevier Inc. All rights reserved. 7 Bacterial Sexually Transmitted Infections (Cont.) Chlamydia Management • Doxycycline • Azithromycin • All exposed sexual partners should be treated. Perinatal transmission • Antibiotic ointment Copyright © 2016 by Elsevier Inc. All rights reserved. 8 Bacterial Sexually Transmitted Infections (Cont.) Gonorrhea Aerobic gram-negative diplococcus Oldest communicable disease in the United States Second to chlamydia in reported cases Highest rates among teenagers, young adults, and African-Americans Women often asymptomatic Copyright © 2016 by Elsevier Inc. All rights reserved. 9 Bacterial Sexually Transmitted Infections (Cont.) Gonorrhea Screening and diagnosis • CDC recommends screening all women at risk. • Testing performed during first trimester and at 36 weeks of pregnancy • Is a reportable disease Management • Antibiotic therapy: cefixime or ceftriaxone • Concomitant treatment for chlamydia • Perinatal complications of gonococcal infection Copyright © 2016 by Elsevier Inc. All rights reserved. 10 Bacterial Sexually Transmitted Infections (Cont.) Syphilis Treponema pallidum, a motile spirochete • Earliest described STI • Transmission by entry into subcutaneous tissue through microscopic abrasions that can occur during sexual intercourse • Also transmitted through kissing, biting, or oral-genital sex Transplacental transmission may occur at any time during pregnancy. Copyright © 2016 by Elsevier Inc. All rights reserved. 11 Bacterial Sexually Transmitted Infections (Cont.) Syphilis Can lead to serious systemic disease and even death when untreated Infection manifests in distinct stages • Primary: 5 to 90 days after exposure • Secondary: 6 weeks to 6 months • Tertiary: develops in one third of women infected Copyright © 2016 by Elsevier Inc. All rights reserved. 12 Bacterial Sexually Transmitted Infections (Cont.) Syphilis Screening and diagnosis • Pregnant women • Serologic tests • False-positive results Management • Penicillin • Sexual abstinence during treatment Copyright © 2016 by Elsevier Inc. All rights reserved. 13 Bacterial Sexually Transmitted Infections (Cont.) Pelvic inflammatory disease (PID) An infectious process that most commonly involves the fallopian tubes, uterus, and occasionally the ovaries and peritoneal surfaces Multiple organisms have been found to cause PID. Copyright © 2016 by Elsevier Inc. All rights reserved. 14 Bacterial Sexually Transmitted Infections (Cont.) Pelvic inflammatory disease (PID) Risk factors for acquiring PID • Young age • Nulliparity • Multiple partners • High rate of new partners • History of STIs and PID Those with PID are at increased risk for • Ectopic pregnancy • Infertility • Chronic pelvic pain Copyright © 2016 by Elsevier Inc. All rights reserved. 15 Bacterial Sexually Transmitted Infections (Cont.) Pelvic inflammatory disease (PID) (Cont.) Symptoms • Depend on type of infection Acute Subacute Chronic Screening and diagnosis • History • CDC routine criteria Management • Prevention • Hospitalization • Education Copyright © 2016 by Elsevier Inc. All rights reserved. 16 Viral Sexually Transmitted Infections Human papillomavirus (HPV) Condylomata acuminata Affects 20 million Americans Most prevalent viral STI seen in ambulatory health care settings Previously named genital or venereal warts More frequent in pregnant women Copyright © 2016 by Elsevier Inc. All rights reserved. 17 Viral Sexually Transmitted Infections (Cont.) Human papillomavirus (HPV) (Cont.) Screening and diagnosis • History of known exposure • Physical inspection • Pap test • Viral screening and typing for HPV are available but not standard practice. Management • Removal • Medications • Counseling Copyright © 2016 by Elsevier Inc. All rights reserved. 18 Viral Sexually Transmitted Infections (Cont.) Herpes simplex virus (HSV) Herpes simplex virus 1 (HSV-1) • Transmitted nonsexually Herpes simplex virus 2 (HSV-2) • Transmitted sexually Initial infection characterized by multiple painful lesions, fever, chills, malaise, and severe dysuria Copyright © 2016 by Elsevier Inc. All rights reserved. 19 Viral Sexually Transmitted Infections (Cont.) Herpes simplex virus (HSV) (Cont.) Chronic and recurring disease for which there is no known cure Systemic antiviral medications partially control the symptoms ● Maternal infection with HSV-2 can have adverse effects on mother and fetus ● Neonatal herpes Most severe complication of HSV Most mothers lack history of HSV Copyright © 2016 by Elsevier Inc. All rights reserved. 20 Viral Sexually Transmitted Infections (Cont.) Viral hepatitis Hepatitis A virus (HAV) • Acquired primarily through a fecal-oral route • Vaccination the most effective means of preventing HAV transmission • Characterized by flulike symptoms with malaise, fatigue, anorexia, nausea, pruritus, fever, and right upper quadrant pain Copyright © 2016 by Elsevier Inc. All rights reserved. 21 Viral Sexually Transmitted Infections (Cont.) Viral hepatitis (Cont.) Hepatitis B virus (HBV) • Most threatening to the fetus and neonate • Disease of the liver and often a silent infection • Transmitted parenterally, perinatally, and, rarely, orally as well as through intimate contact • Vaccination series available • No specific treatment; recovery is usually spontaneous within 3-16 weeks Copyright © 2016 by Elsevier Inc. All rights reserved. 22 Viral Sexually Transmitted Infections (Cont.) Viral hepatitis (Cont.) Hepatitis C virus (HCV) • Most common blood-borne infection in the United States • Important health problem as increasing numbers acquire disease • Risk factor for pregnant women is history of injecting IV drugs • Interferon-alfa or ribavirin is main therapy for HCV infection • Effectiveness of treatment varies Copyright © 2016 by Elsevier Inc. All rights reserved. 23 Viral Sexually Transmitted Infections (Cont.) Human immunodeficiency virus (HIV) 47,500 new HIV infections occur in United States each year Heterosexual transmission now the most common means of transmission in women 20% of these new infections occur in women Transmission of HIV occurs primarily through exchange of body fluids Copyright © 2016 by Elsevier Inc. All rights reserved. 24 Viral Sexually Transmitted Infections (Cont.) Human immunodeficiency virus (HIV) (Cont.) Severe depression of the cellular immune system associated with HIV infection characterizes AIDS Symptoms: fever, headache, night sweats, malaise, generalized lymphadenopathy, myalgias, nausea, diarrhea, weight loss, sore throat, and rash Copyright © 2016 by Elsevier Inc. All rights reserved. 25 Viral Sexually Transmitted Infections (Cont.) Human immunodeficiency virus (HIV) (Cont.) Screening and diagnosis • Antibody testing • Detection Counseling for HIV testing • Counseling before and after HIV testing is standard • • • • • nursing practice today HIV testing offered early in pregnancy Perinatal transmission decreases Consider confidentiality and documentation Pretest and posttest counseling Notification of results Copyright © 2016 by Elsevier Inc. All rights reserved. 26 Viral Sexually Transmitted Infections (Cont.) Human immunodeficiency virus (HIV) (Cont.) Management • Resources Death and dying Suicide prevention Financial assistance Legal advocacy • Prevention of transmission • No cure available yet Copyright © 2016 by Elsevier Inc. All rights reserved. 27 Viral Sexually Transmitted Infections (Cont.) Human immunodeficiency virus (HIV) (Cont.) HIV and pregnancy • HIV counseling and testing should be offered to all women at their initial entry into prenatal care as part of routine prenatal testing unless the woman opts out of the screening (CDC, 2010c). • Perinatal transmission has decreased because of antiretroviral prophylaxis. Decreases transmission to 1% to 2% • Intrapartum zidovudine • Cesarean birth is recommended. Copyright © 2016 by Elsevier Inc. All rights reserved. 28 Case Study Your patient is a 20-year-old, single, G0P0 who presents to the clinic as a walk-in. She appears upset. After you bring her to an examination room and take her vital signs, you ask her what the reason is for her visit today. She replies, “A couple of days ago, I noticed some painful, pimple-like bumps on the outside of my vagina. I don’t know what to do.” While you take her health history, what are some especially important questions to include? Copyright © 2016 by Elsevier Inc. All rights reserved. 29 Case Study (Cont.) After the physical exam, you explain to the patient that a diagnosis of herpes simplex virus is suspected and will be confirmed with the lab culture. The patient asks, “Can the doctor prescribe me some antibiotics to get rid of the infection?” As the nurse, what is your best response? What other patient teaching is important to include before the patient departs? Copyright © 2016 by Elsevier Inc. All rights reserved. 30 Case Study (Cont.) The patient states that she is heterosexual and is currently sexually active with one partner, her boyfriend. She has a history of 2 past sexual partners. She denies any previous history of STIs. As a nurse, you may perform part of the examination or you may be present to assist the provider with the exam. What is important to include in the focused physical examination? Copyright © 2016 by Elsevier Inc. All rights reserved. 31 Vaginal Infections Vulvovaginitis Inflammation of the vulva and vagina Many different causes Bacterial vaginosis (BV) Syndrome in which normal H2O2-producing lactobacilli are replaced with high concentrations of anaerobic bacteria Associated with preterm labor and birth Treatment with metronidazole orally Copyright © 2016 by Elsevier Inc. All rights reserved. 32 Vaginal Infections (Cont.) Candidiasis Candida albicans or non–C. albicans infection Vulvovaginal candidiasis, or yeast infection, is second most common type of vaginal infection Numerous factors have been identified as predisposing a woman to yeast infections. In women with HIV, symptoms are more severe and persistent. Copyright © 2016 by Elsevier Inc. All rights reserved. 33 Vaginal Infections (Cont.) Candidiasis (Cont.) Predisposing factors • Antibiotic therapy • Diabetes • Pregnancy • Obesity • Diets high in refined sugars • Use of corticosteroids and hormones • Immunosuppressed states Copyright © 2016 by Elsevier Inc. All rights reserved. 34 Vaginal Infections (Cont.) Candidiasis (Cont.) Common symptoms • Vulvar pruritus • Vaginal pruritus Screening and diagnosis • Physical examination • Vaginal pH Management • Over-the-counter agents Intravaginal treatment or oral agent Full course of treatment must be completed Other comfort measures Copyright © 2016 by Elsevier Inc. All rights reserved. 35 Vaginal Infections (Cont.) Trichomoniasis Caused by Trichomonas vaginalis Often considered an STI Common cause of vaginal infection Inflammation of the vagina and/or vulva Screening and diagnosis • Speculum examination • Pap test Management • Metronidazole • The risk for sexual transmission must be communicated to infected women. Copyright © 2016 by Elsevier Inc. All rights reserved. 36 Vaginal Infections (Cont.) Group B streptococci (GBS) A part of the normal vaginal flora, present in 20% to 30% of healthy women Associated with poor pregnancy outcomes Important factor in neonatal morbidity and mortality Screening at 36-37 weeks of gestation Intrapartum intravenous prophylaxis Copyright © 2016 by Elsevier Inc. All rights reserved. 37 Maternal and Fetal Effects of Sexually Transmitted Infections STIs in pregnancy are responsible for significant morbidity and mortality Pregnancy effects • Premature rupture of membranes • Premature labor • Postpartum sepsis • Dystocia • Miscarriage Copyright © 2016 by Elsevier Inc. All rights reserved. 38 Maternal and Fetal Effects of Sexually Transmitted Infections (Cont.) STIs in pregnancy are responsible for significant morbidity and mortality. Fetal effects • Preterm birth • Pneumonia • Systemic infection • Congenital infection • Stillbirth Copyright © 2016 by Elsevier Inc. All rights reserved. 39 Maternal and Fetal Effects of Sexually Transmitted Infections (Cont.) TORCH infections Form group of infections capable of crossing the placenta and adversely affecting the fetus • Toxoplasmosis • Other infections (e.g., hepatitis, HIV) • Rubella virus • Cytomegalovirus • Herpes simplex virus (HSV) Copyright © 2016 by Elsevier Inc. All rights reserved. 40 Maternal and Fetal Effects of Sexually Transmitted Infections: Care Management Assessment and nursing diagnoses History • Ask about lifestyle behaviors that place clients at risk for STIs Physical examination • Ensure comfort during examination Laboratory tests Copyright © 2016 by Elsevier Inc. All rights reserved. 41 Maternal and Fetal Effects of Sexually Transmitted Infections: Care Management (Cont.) Expected outcomes of care Plan of care and interventions Focus on physical and psychologic needs with emphasis on avoidance of reinfection and harmful sequelae Infection control Management during pregnancy Evaluation Copyright © 2016 by Elsevier Inc. All rights reserved. 42 Infection Control Interrupting the transmission of infection is crucial to STI control Many STIs are reportable; all states require that these STIs be reported to public health officials Gonorrhea Syphilis Chancroid Lymphogranuloma venereum Granuloma inguinale Copyright © 2016 by Elsevier Inc. All rights reserved. 43 Key Points Reproductive tract infections include STIs and common genital tract infections. Risk-reduction sexual practices are key STIprevention strategies. HIV is transmitted through body fluids, primarily blood, semen, and vaginal secretions. Copyright © 2016 by Elsevier Inc. All rights reserved. 44 Key Points (Cont.) Prevention of mother-to-newborn HIV transmission is most effective when the woman receives antiretroviral drugs during pregnancy and labor and birth, and the infant receives the drugs after birth. HPV is the most common viral STI. Syphilis has reemerged as a common STI, affecting African-American women more than any other ethnic or racial group. Copyright © 2016 by Elsevier Inc. All rights reserved. 45 Key Points (Cont.) Chlamydia is the most common STI in women in the United States and the most common cause of PID. Viral hepatitis has several forms of transmission; HBV infections carry the greatest risk. Young, sexually active women who do not practice risk-reducing sexual behaviors and have multiple partners are at greatest risk for STIs and HIV. Copyright © 2016 by Elsevier Inc. All rights reserved. 46 Key Points (Cont.) STIs are responsible for substantial mortality and morbidity, great personal suffering, and heavy economic burden in the United States. STIs and vaginitis are biologic events for which all individuals have a right to expect objective, compassionate, and effective health care. Copyright © 2016 by Elsevier Inc. All rights reserved. 47 Key Points (Cont.) Pregnancy confers no immunity against infection, and both mother and fetus must be considered when the pregnant woman contracts an infection. Because history and examination cannot reliably identify everyone with HIV or other blood-borne pathogens, blood and body-fluid precautions should be used consistently for everyone all the time. Copyright © 2016 by Elsevier Inc. All rights reserved. 48 Question 1. A nurse is providing discharge instructions to a client who has just been diagnosed with human papillomavirus (HPV) on her cervix. What is the most important discharge instruction for this client? a. Take a multivitamin every day. b. Check for external lesions around the vagina every month. c. Have Pap tests done as recommended by her provider. d. Avoid using an intrauterine device (IUD). Copyright © 2016 by Elsevier Inc. All rights reserved. 49