Venerology

Venerology Indian Medical PG Question 1: Which of the following is NOT a core component of the WHO's global STI control strategy?

• A. Case management
• B. Universal mandatory screening (Correct Answer)
• C. Strategic information systems
• D. Prevention services

Venerology Explanation: ***Universal mandatory screening*** - While screening is part of STI control, **universal mandatory screening** for all STIs in the general population is not a core component of the WHO's strategy due to feasibility, cost, and ethical considerations. - The strategy emphasizes **targeted screening** for at-risk populations and opportunistic screening. *Case management* - **Case management**, including accurate diagnosis and effective treatment, is a critical component for managing current infections and preventing further transmission. - This involves syndromic or etiologic approaches to treatment and partner notification. *Strategic information systems* - **Strategic information systems** are essential for monitoring trends, evaluating interventions, and informing policy decisions related to STI control. - This includes surveillance data, program monitoring, and research. *Prevention services* - **Prevention services** are a cornerstone of the WHO's strategy, aiming to reduce the incidence of new infections. - These services encompass health education, condom promotion and distribution, vaccination, and pre-exposure prophylaxis (PrEP).

Venerology Indian Medical PG Question 2: An infertile woman presents with yellow or green vaginal discharge, a Bartholin cyst and proctitis. What is the most probable diagnosis?

• A. Trichomoniasis
• B. Gonorrhoea (Correct Answer)
• C. Syphilis
• D. Candidiasis

Venerology Explanation: ***Gonorrhoea*** - This presentation, including **yellow/green vaginal discharge**, a **Bartholin cyst**, and **proctitis**, is highly suggestive of **gonorrhoea**. - *Neisseria gonorrhoeae* can cause inflammation in these specific areas and is a known cause of **infertility** due to pelvic inflammatory disease. *Trichomoniasis* - Characterized by a **frothy, foul-smelling, yellow-green discharge** and often involves **cervical petechiae** (strawberry cervix). - While it causes vaginal discharge, **Bartholin cysts** and **proctitis** are not typical features. *Syphilis* - The primary stage presents as a **painless chancre**, secondary syphilis involves a **rash** and **lymphadenopathy**, and tertiary syphilis has severe organ involvement. - It does not typically present with the specific combination of **Bartholin cyst**, vaginal discharge, and **proctitis**. *Candidiasis* - Causes a **thick, white, "cottage cheese-like" discharge** associated with significant **pruritus** and **vaginal irritation**. - It does not typically lead to **Bartholin cysts** or **proctitis**.

Venerology Indian Medical PG Question 3: Why is syndromic management of STIs particularly important in resource-limited settings?

• A. It's more cost-effective than targeted therapy
• B. It prevents emergence of drug resistance
• C. It's more effective than etiologic diagnosis
• D. It allows treatment without waiting for laboratory confirmation (Correct Answer)

Venerology Explanation: ***It allows treatment without waiting for laboratory confirmation*** - **Syndromic management** enables immediate treatment based on clinical symptoms, which is crucial in settings where laboratory tests are **unavailable or delayed**. - This approach helps to **interrupt transmission** and prevent complications quickly, even without a definitive diagnosis. *It's more cost-effective than targeted therapy* - While syndromic management can be more cost-effective than extensive laboratory testing, its primary importance in resource-limited settings is not solely about cost but about **accessibility and timeliness of treatment**. - **Over-treatment with multiple drugs** can sometimes increase overall drug costs, but the benefit of prompt treatment often outweighs this. *It prevents emergence of drug resistance* - Syndromic management often involves the use of **broad-spectrum antibiotics** or multiple drugs, which can actually contribute to the **emergence of drug resistance** if not appropriate for the specific pathogen. - Preventing drug resistance is primarily addressed through **appropriate drug selection** and adherence to treatment guidelines, not inherently by the syndromic approach itself. *It's more effective than etiologic diagnosis* - **Etiologic diagnosis** (identifying the specific pathogen) is considered the gold standard for STI management as it allows for **targeted therapy** and better pathogen-specific treatment. - Syndromic management is a pragmatic approach used when etiologic diagnosis is not feasible, making it a **practical alternative**, not necessarily more effective.

Venerology Indian Medical PG Question 4: What is the treatment of choice for penicillin-resistant gonorrhea?

• A. Erythromycin (a macrolide antibiotic)
• B. Ceftriaxone (a third-generation cephalosporin) (Correct Answer)
• C. Streptomycin (an aminoglycoside antibiotic)
• D. Ciprofloxacin (a fluoroquinolone antibiotic)

Venerology Explanation: ***Ceftriaxone (a third-generation cephalosporin)*** - **Ceftriaxone** is the recommended treatment for uncomplicated gonorrhea, including penicillin-resistant strains, given as a single intramuscular dose (500 mg IM). - It works by inhibiting bacterial cell wall synthesis and has excellent activity against *Neisseria gonorrhoeae*. - **Current guidelines recommend dual therapy:** Ceftriaxone plus azithromycin (or doxycycline) to prevent resistance development and cover potential co-infection with *Chlamydia trachomatis*. *Erythromycin (a macrolide antibiotic)* - While macrolides like azithromycin are used in combination with ceftriaxone, **erythromycin alone** is not effective first-line therapy for gonorrhea. - Its primary use in STIs is for chlamydia in specific situations, but not as monotherapy for gonorrhea. *Streptomycin (an aminoglycoside antibiotic)* - **Streptomycin** is an older antibiotic primarily used for tuberculosis and plague, but it is not effective against gonorrhea. - It works by inhibiting protein synthesis but lacks the necessary spectrum and tissue penetration for *Neisseria gonorrhoeae*. *Ciprofloxacin (a fluoroquinolone antibiotic)* - **Ciprofloxacin** was previously used for gonorrhea, but widespread resistance has developed globally, making it unreliable. - Due to high rates of fluoroquinolone resistance, it is **no longer recommended** for empiric treatment of gonorrhea by CDC/WHO guidelines.

Venerology Indian Medical PG Question 5: What is the most sensitive diagnostic method for detecting Trichomonas vaginalis?

• A. Pap smear
• B. Culture
• C. Nucleic acid amplification test (NAAT) (Correct Answer)
• D. Wet mount microscopy

Venerology Explanation: ***Nucleic acid amplification test (NAAT)*** - **NAATs** detect **_Trichomonas vaginalis_** DNA or RNA, offering the **highest sensitivity and specificity** among available diagnostic methods. - This method is particularly useful for detecting low parasitic loads and in asymptomatic patients, improving diagnostic accuracy. *Pap smear* - While a **Pap smear** can sometimes incidentally detect **_Trichomonas vaginalis_**, it is not a dedicated or **sensitive diagnostic tool** for this infection. - Its primary purpose is cervical cancer screening, and its sensitivity for trichomoniasis is low, often leading to false negatives. *Culture* - **Culture** was previously considered the **gold standard** but is less sensitive and takes longer (up to 7 days) to yield results compared to NAATs. - Its sensitivity is significantly reduced when parasite loads are low or if samples are not processed promptly. *Wet mount microscopy* - **Wet mount microscopy** allows for the visualization of **motile trichomonads**, but its sensitivity is highly dependent on operator experience and parasitic load. - It has a **sensitivity of 50-70%**, meaning a significant number of infections can be missed.

Venerology Flashcard 1 of 5

Question: Enlargement of the inguinal nodes above and the femoral nodes below the inguinal ligament leads to the classic groove sign, seen in _____

Answer: lymphogranuloma venerum

Venerology Flashcard 2 of 5

Question: Chlamydia trachomatis can cause _____, most commonly of the sacroiliac joint

Answer: reactive arthritis (aka Reiter syndrome)

Venerology Flashcard 3 of 5

Question: The Jarisch-Herxheimer reaction is a response to the release of endotoxin-like factors from the lysis of _____ organisms that manifests as fevers, chills, and myalgias.

Answer: Treponema pallidum

Venerology Flashcard 4 of 5

Question: Which tests remain positive even after treatment of early syphilis?_____

Answer: treponemal (non-treponemal/treponemal)

Venerology Flashcard 5 of 5

Question: _____ test is the test of choice for response to therapy in T. pallidum infection

Answer: VDRL