What is the appropriate management and treatment plan for a patient whose partner has a sexually transmitted infection (STI)?

Management of Patient Whose Partner Has an STI

When a patient reports their partner has an STI, immediately test the patient for the specific STI and provide presumptive treatment without waiting for results, particularly for chlamydia and gonorrhea, while ensuring the partner receives treatment through expedited partner therapy or direct referral.

Immediate Testing and Treatment Approach

The patient should receive:

• Nucleic acid amplification testing (NAAT) for chlamydia and gonorrhea (most sensitive tests available) 1
• Testing for other STIs including HIV, syphilis, and hepatitis B based on risk assessment
• Presumptive treatment before test results if the patient is at increased risk (age <25 years, new or multiple partners, unprotected sex), especially when follow-up cannot be ensured 1

Recommended Presumptive Treatment Regimens

For chlamydia and gonorrhea exposure 1:

• Azithromycin 1 g orally as a single dose OR
• Doxycycline 100 mg orally twice daily for 7 days

Add concurrent gonorrhea treatment if local prevalence exceeds 5% in the patient population 1

Partner Management Strategy

The most critical intervention is ensuring the partner receives treatment to prevent reinfection of the index patient 1. Three evidence-based approaches exist:

1. Expedited Partner Therapy (EPT) - Preferred When Partner Won't Seek Care

EPT reduces reinfection rates by approximately 29% compared to simple patient referral 2 and is the recommended approach when partners are unable or unwilling to seek medical evaluation 3, 4:

• Provide the patient with prescriptions or medications to deliver directly to their partner(s)
• Include written treatment instructions and information about the infection
• For heterosexual partners: This is appropriate and effective 1
• For men who have sex with men (MSM): EPT is NOT routinely recommended due to high risk of coexisting infections, especially undiagnosed HIV 1
• Female partners must receive written materials about pelvic inflammatory disease (PID) warning signs 1

Legal considerations: EPT is permissible in 27 states; check local regulations 4

2. Enhanced Patient Referral

Provide the patient with:

• Written information for their partner(s)
• Clear instructions on where to obtain testing and treatment
• Information about the 60-day exposure window 1

3. Provider Referral

Health department or clinic staff directly contact and arrange treatment for partners - particularly important for syphilis and HIV 1

Critical Exposure Window

Partners require evaluation and treatment if they had sexual contact within 60 days preceding the patient's symptom onset or diagnosis 1. The most recent partner should be treated even if contact occurred >60 days prior 1.

Sexual Abstinence Requirements

Both patient and partner(s) must abstain from sexual intercourse until:

• 7 days after completing single-dose therapy (azithromycin), OR
• 7 days after completing multi-day regimens (doxycycline) 1

This is essential to prevent reinfection and treatment failure.

Follow-Up Testing Strategy

Retesting at 3 months post-treatment is critical because:

• Reinfection rates are high (14-30% for chlamydia) when partners aren't adequately treated 5
• Repeat infections significantly increase risk for PID and complications compared to initial infection 1
• This is NOT a test-of-cure but rather screening for reinfection 1

Do NOT test earlier than 3 weeks post-treatment - this can yield false-positive results from dead organisms or false-negative results from low organism counts 1

For women: Retest at 3 months, and again at any medical visit within 3-12 months regardless of whether partners were treated 1

Special Populations

Pregnancy

If the patient is pregnant, use:

• Azithromycin 1 g orally single dose (safe and effective), OR
• Amoxicillin 500 mg orally three times daily for 7 days 1

Avoid doxycycline, ofloxacin, and levofloxacin - these are contraindicated in pregnancy 1

Pregnant women require repeat testing 3 weeks after treatment completion to ensure cure due to serious maternal and neonatal sequelae 1

HIV-Positive Patients

Use the same treatment regimens as HIV-negative patients 1. Treating cervicitis in HIV-infected women reduces cervical HIV shedding and may decrease transmission risk 1

Common Pitfalls to Avoid

1. Waiting for test results before treating high-risk patients - this increases loss to follow-up and ongoing transmission
2. Using EPT for MSM partners - they require in-person evaluation for HIV and other coinfections
3. Testing too early after treatment - wait minimum 3 weeks to avoid false results
4. Failing to address the 60-day partner window - all recent partners need treatment
5. Not scheduling 3-month retest - reinfection is common and increases complication risk
6. Allowing sexual activity before 7-day abstinence period - this causes treatment failure

The evidence strongly supports that partner treatment is the single most important factor in preventing reinfection 1, 2, making EPT a valuable tool when traditional partner referral is unlikely to succeed.