Sexually Transmitted Infections Flashcards

1
Q
  • which population is disproportionally impacted by STDs including P&S syphilis and gonorrhea?
  • Who is getting STDs?
A
  1. MSM
  2. In 2019 over half (55.4%) of reported cases of STDs were among adolescentes and young adults aged 15-24 years
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2
Q

what is the current screening recommendation for chlamydia & gonorrhea?

A
  • screen all sexually active females under age 25 annually
  • if positive rescreen 3-4 months after treatment due to high rate of re-infection

individuals should refrain from sexual intercourse until they have completed the seven day treatment regimen (Or seven days have elapsed after single-dose treatment) any symptoms have resolved and sexual partners have been treated.

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3
Q
  • most common bacterial cause of sexually transmitted gentital infection
  • often asymptomatic
  • clinical syndromes in females- genitourinary tract infection, cervicitis, dysuria-pyuria syndrome, PID, perihepatitis, pregnancy complications, also- conjunctivitis, phayngitis, reactive arthritis
A

chlamydia

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3
Q

testing for chlamydia?

A
  • NAAT (nucleic acid amplification testing)
  • preferred testing: Vaginal swab; self swab or endocervical swab with speculum exam
  • urinary study (first catch urine)- up to 10% less infections detected this way
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4
Q

treatment of chlamydia?

A
  • empiric therapy for chlamydial infection should be offered to a persons who present with symptoms of cervicitis, pelvic inflammatory disease, urethritis, epididymitis, or acute proctitis OR if they have recent known or possible exposure
  • Doxycylcine 100mg twice daily for seven days
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5
Q
  • Major cause of cervicitis in women which can later result in pelvic inflammatory disease (PID), infertility, ectopic pregnancy and chronic pelvic pain
  • remember screeening for all women < 25, MSM and those at high risk
  • urogenital infections: cervicitis, urethritis, PID, bartholinitis

Testing is the same as chlamydia

A

Gonorrhea

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6
Q

treament of gonorrhea?

A
  • ceftriaxone 500mg IM
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7
Q
  • urethritis and cervicitis, similar risk factors as other STIs (think this if no clinical response to empiric therapy of GC/Chlamydia)
  • coinfection with other STIs including bacterial STIs and HIV
  • Test symptomatic patients, use NAAT testing
  • no routine screening, tests less available
  • TX: azithromycin, fluoroquinolones
A

Mycoplasma Genitalium

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8
Q
  • An inflammatory disorder of the upper female genital tract, most typically presenting as salpingitis (fallopian tube infection)
  • lower abdominal pain (usually) may be unilateral or bilateral
  • dyspareunia (sometimes)
  • vaginal discharge or bleeding (occasionally)
  • sx may be absent, subtle or mild
  • Cervical Motion Tenderness

Always consider in diff. dx of acute abdominal pain in women

A

Pelvic inflammatory disease

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9
Q

PID complications?

A
  • Ectopic pregnancy
  • tubo-ovarian abscess
  • infertility
  • chronic pelvic pain
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10
Q

How can you diagnose PID?

A

Minimum Criteria: lower abdomen/pelvic pain, plus one or more

  • adnexal tenderness (unilateral or bilateral) or
  • uterine tenderness or
  • cervical motion tenderness

Additional non-specific criteria that support PID diagnosis:

  • oral temp > 38.3C
  • abnormal cervical or vaginal micropurulent discharge
  • abundant WBCs on vaginal wet mount
  • Elevated ESR or CRP
  • documented chlamydial or gonococcal infection
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11
Q

Treatment of PID?

A
  • a singular IM dose of ceftriaxone, doxycyline + metronidazole

doxycycline and metronidazole BID for 14 days

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12
Q

Recent sexual partners (60 days) of patients diagnosed with these STIs should be treated empiracally with same regimen for what STIs

A
  • chlamydia
  • gonorrhea
  • syphilis (6 months)
  • trichomniasis
  • PID
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13
Q

Common cause of first episode genital herpes and causes almost all recurrent genital herpes

A

HSV-2

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14
Q

is an increasingly important cause of first epidsode genital herpes, but recurrences are infrequent

A

HSV-1

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15
Q

Herpes testing and treatment

A

Testing

  • NAAT (PCR) is the best test for diagnosis
  • swab all visible lesions
  • can use serology (type-specific)

Treatment

  • episodic therapy preferred for HSV-1- Short course treatment to manage symptoms only- acyclovir, valacyclovir, famciclovir
  • Suppressive therapy preferred for HSV-2- Daily treatment suppresses viral activity- Valacyclovir 500mg once daily for most patients
16
Q

What are the three stages of syphillis?

A
  • Primary (lesions)
  • secondary (rash)
  • late and latent (early latent- asymptomatic < 1yr) ; (latent > 1 year, or unknown duration)
17
Q

when the syphillis test is positive, what six steps should be completed?

A
  • Categorize it: primary, seconday, tertiary
  • get more history; past dx, testing, treatment
  • assess for neurologic symptoms
  • treat it: IM benzathine Penicillin G; doxycycline if PCN allergy
  • Check HIV status
  • follow up-RPR/VDRL (to monitor treatment)
18
Q
  • Tropical and subtropical areas of the world
  • lymphoproliferative reaction
  • spreads to produce a lymphangitis, areas of necrosis occurs within the nodes, allows abscess formation
  • primary (ulcer) > secondary (into lymph nodes) > late (fibrosis of structures)
  • Testing: NAAT
  • tx: Doxycycline 100mg x 21 days
A

Lymphogranuloma Venereum (LGV)

19
Q
  • rare infection in the US and most other developed countries
  • erthematous papule that rapidly evolves into pustule, which erodes into an ulcer
  • infected persons commonly have more than one ulcer, and the lesions are almost always confined to the genital area and its draining lymph nodes
  • testing: challenging as most places don’t test for this
  • tx: azithromycin, ceftriaxone, ciprofloxacin, erythromycin
A

Chancroid- Haemophilus Ducreyi