Urogynecology Practice Questions

Q: Cystitis is most commonly caused by which organism?

E. coli. **Explanation:** **Correct Answer: A. E. coli** Cystitis (inflammation of the urinary bladder) is most frequently caused by **Escherichia coli**, which accounts for approximately **75–90%** of uncomplicated urinary tract infections (UTIs). The primary medical concept is the **ascending infection** pathway. E. coli, a commensal of the gastrointestinal tract, colonizes the vaginal introitus and periurethral area. Due to the short female urethra, these uropathogenic strains (UPEC) use fimbriae (P-pili) to adhere to the urothelium, resisting washout by urine. **Analysis of Incorrect Options:** * **B. Pseudomonas:** This is typically an opportunistic pathogen. It is a common cause of **nosocomial (hospital-acquired)** UTIs, especially in patients with indwelling catheters or those who have undergone recent urological instrumentation. * **C. Proteus mirabilis:** While a significant cause of UTIs, it is less common than E. coli. It is clinically high-yield because it produces **urease**, which alkalinizes the urine and leads to the formation of **struvite (staghorn) calculi**. * **D. Neisseria gonorrhea:** This organism primarily causes urethritis and cervicitis (STIs) rather than isolated cystitis. While it can cause urinary symptoms, it is not the leading cause of bladder infection. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause overall:** E. coli. * **Second most common cause in young, sexually active females:** *Staphylococcus saprophyticus*. * **Honeymoon Cystitis:** Often refers to cystitis triggered by sexual intercourse, frequently involving E. coli. * **Gold Standard Diagnosis:** Urine culture showing $\geq 10^5$ CFU/mL (Kass criteria), though $\geq 10^2$ CFU/mL is significant in symptomatic women.

Q: Fistula formation due to the given etiology occurs within how much time?

5 days. ***5 days*** - **Obstructed labor** causes prolonged compression of the **bladder neck** and **anterior vaginal wall** between the fetal head and pubic symphysis, leading to **ischemic necrosis**. - The necrotic tissue **sloughs off within 5 days** after delivery, forming a **vesicovaginal fistula (VVF)** as the devitalized tissue separates. *24 hours* - **Ischemic changes** begin within hours, but complete **tissue necrosis** and sloughing requires more time to develop. - At 24 hours, tissues are still undergoing **ischemic damage** but have not yet progressed to complete necrosis and fistula formation. *48 hours* - While **tissue ischemia** is well-established by this time, **complete necrosis** and subsequent sloughing typically requires longer duration. - **Fistula formation** involves tissue breakdown and separation, which occurs after the necrotic tissue becomes completely devitalized. *2 weeks* - This timeframe is too long for **obstetric fistulas** caused by obstructed labor, which typically manifest within the first week. - **Surgical trauma-related fistulas** may present around this time, but **pressure necrosis fistulas** occur much earlier after delivery.

Q: 75% of iatrogenic ureteric injuries are due to gynaecological procedures. Which hysterectomy route has the least risk of ureteric injury?

Vaginal. ***Vaginal***- The **vaginal** route typically involves less extensive dissection in the lateral pelvis where the ureters are located, thus minimizing the risk of direct trauma or clamping. - The operation focuses more on the inferior attachments, avoiding the critical area where the ureter passes near the **uterine arteries** (the 'water under the bridge'). *Laparoscopic* - The risk can be significant due to the use of energy devices leading to **thermal injury** or entrapment during suture placement in the cardinal and uterosacral ligaments. - Reduced tactile feedback and potential for altered **3D visualization** increase the likelihood of inadvertent injury during dissection near the pelvic sidewall. *Abdominal* - Although providing good visualization, the procedure requires deliberate dissection near the **pelvic sidewall** where the ureter is vulnerable during clamping and suturing of the **uterine arteries**. - Ureter disruption or ligation often occurs during procedures for large uteri or in cases of **pelvic pathology** (e.g., severe endometriosis, fibroids) that distort anatomy. *Robotic* - Similar to laparoscopic approaches, it carries risks related to extensive use of **electrosurgical energy** and dissection near the ureters for complex cases. - Despite offering enhanced dexterity and 3D visualization, the manipulation and application of clips/sutures to the **cardinal ligaments** still require high vigilance to avoid ureter compromise.

Q: A woman had a difficult labour. She complains of dribbling of urine 7 days after delivery. What is the diagnosis?

VVF. ***VVF***- **Vesicovaginal fistula (VVF)** is the most common genitourinary fistula following obstetrical trauma, often resulting from pressure necrosis due to **prolonged obstructed labor**. The typical presentation is continuous **dribbling of urine** from the vagina, starting several days (often 3-7 days) after the event when the necrotic tissue sloughs off.*UVF*- **Ureterovaginal fistula (UVF)** typically results from injury during **gynecological surgery** (like hysterectomy) rather than primarily from complicated labor itself.- While it also causes continuous urinary leakage, the diagnosis usually requires advanced imaging (IV Urography) to confirm ureteric involvement.*Rectovaginal fistula*- This fistula connects the **rectum** and the **vagina**, leading to the passage of **flatus** and **fecal matter** through the vagina.- It is directly related to damage to the perineum (3rd or 4th-degree lacerations) and does **not** cause urinary leakage.*VUF*- **Vesicouterine fistula (VUF)** involves communication between the bladder and the uterine cavity, almost exclusively occurring after a **Cesarean section**.- While urine can leak into the vagina, classic differentiating features often include secondary **amenorrhea** and **cyclic hematuria (Menouria)**.

Q: Which of the following is the most common site for genito-urinary fistula?

Bladder. ***Bladder (Vesicovaginal Fistula)*** - This is the **most common type of genito-urinary fistula**. - It involves an abnormal connection between the **urinary bladder** and the **vagina**, leading to continuous urine leakage through the vagina. - **Common causes** include obstructed labor (developing countries) and surgical trauma during gynecological procedures (developed countries). - **Clinical presentation**: Continuous urinary incontinence, urine leaking through vagina regardless of position or activity. *Uterus (Uterovesical Fistula)* - A fistula involving the **uterus and bladder** is **much less common** than vesicovaginal fistula. - Usually results from cesarean section complications or severe pelvic trauma. - Urine may leak into the uterine cavity, presenting with cyclical hematuria (menouria) or urine loss. *Ureter (Ureterovaginal Fistula)* - A connection between the **ureter** and the **vagina** causes urine leakage but is **less common** than vesicovaginal fistula. - Typically occurs after pelvic surgery (hysterectomy) or urological procedures with ureteral injury. - Patient may have **normal voiding** but continuous urine leakage through vagina. *Rectum (Rectovaginal Fistula)* - This involves a connection between the **rectum** and the **vagina**. - This is a **genito-intestinal fistula**, NOT a genito-urinary fistula. - Results in passage of gas or stool through the vagina, not urine leakage.

Question 1

Regarding the sling procedure for Urodynamic Stress Incontinence (USI), which statement is correct?

Accepted Answer

Intrinsic sphincter deficiency is an indication for the procedure.

Answer

Tension-free vaginal tape (TVT) elevates the bladder neck to a retropubic position.

Answer

TVT uses autologous sling material.

Answer

The success rate of TVT is lower than other retropubic procedures.

Question 2

Which of the following does NOT provide support to the urethra and bladder neck?

Accepted Answer

Uterosacral Ligament

Answer

Pubourethral Ligaments

Answer

Arcus tendineus fascia

Answer

Levator ani muscles

Question 3

A patient who underwent an extended hysterectomy one week ago presents with urine leakage from the vagina. She also experiences the urge to void periodically. What is the most likely cause of this presentation?

Accepted Answer

Ureterovaginal fistula

Answer

Vesico-vaginal fistula

Answer

Stress incontinence

Answer

Overflow incontinence

Question 4

What is preserved in the Manchester operation?

Accepted Answer

Menstruation

Answer

Full length of cervix

Answer

Competency of os

Answer

Feility

Question 5

Cystitis is most commonly caused by which organism?

Accepted Answer

E. coli

Answer

Pseudomonas

Answer

Proteus mirabilis

Answer

Neisseria gonorrhea

Question 6

What is the recommended site for the placement of tension-free vaginal tapes for the management of stress urinary incontinence?

Accepted Answer

Middle part of the urethra

Answer

Ureterovaginal junction

Answer

Urethrovaginal junction

Answer

Upper part of the urethra

Question 7

Fistula formation due to the given etiology occurs within how much time?

Accepted Answer

5 days

Answer

24 hours

Answer

48 hours

Answer

2 weeks

Question 8

75% of iatrogenic ureteric injuries are due to gynaecological procedures. Which hysterectomy route has the least risk of ureteric injury?

Accepted Answer

Vaginal

Answer

Laparoscopic

Answer

Robotic

Answer

Abdominal

Question 9

A woman had a difficult labour. She complains of dribbling of urine 7 days after delivery. What is the diagnosis?

Accepted Answer

VVF

Answer

Rectovaginal fistula

Answer

UVF

Answer

VUF

Question 10

Which of the following is the most common site for genito-urinary fistula?

Accepted Answer

Bladder

Answer

Uterus

Answer

Ureter

Answer

Rectum

Urogynecology — MCQs

Urogynecology — MCQs

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