Urogynecology Practice Questions

Q: Estrogen therapy for urinary incontinence acts by all mechanisms except?

Decrease vascularity of the periurethral capillary plexus.. ### Explanation The correct answer is **C. Decrease vascularity of the periurethral capillary plexus.** **Mechanism of Action:** Estrogen plays a vital role in maintaining the integrity of the female lower urinary tract, as the urethra and bladder trigone are embryologically derived from the urogenital sinus and are rich in estrogen receptors. Estrogen **increases** (not decreases) the vascularity of the periurethral capillary plexus. This enhanced blood flow leads to mucosal thickening and engorgement, which improves **urethral coaptation** (the ability of the urethral walls to seal together), thereby increasing the urethral closure pressure. **Analysis of Other Options:** * **Option A:** Estrogen stimulates fibroblast activity, leading to **increased collagen deposition** in the pelvic floor and periurethral tissues. This provides better structural support and improves the "seal" effect of the urethra. * **Option B:** Estrogen upregulates the density and **sensitivity of alpha-adrenergic receptors** in the urethral smooth muscle. Since alpha-receptors mediate contraction, this increases the resting urethral tone. * **Option D:** By promoting angiogenesis and vasodilation, estrogen **increases urethral blood flow**, which directly contributes to a higher **urethral closing pressure**, helping prevent stress incontinence. **NEET-PG High-Yield Pearls:** * **Urogenital Atrophy:** Postmenopausal estrogen deficiency leads to thinning of the urethral epithelium and decreased pressure, contributing to Stress Urinary Incontinence (SUI) and Urge Incontinence. * **Route of Administration:** For urinary symptoms, **local (vaginal) estrogen** is preferred and more effective than systemic therapy. * **Clinical Note:** While estrogen improves mucosal health and urgency symptoms, its role as a standalone cure for severe SUI is limited compared to surgical interventions like Mid-urethral Slings (MUS).

Q: Stress incontinence is repaired by which surgical procedure?

Marshall-Marchetti-Krantz repair. **Explanation:** **1. Why Marshall-Marchetti-Krantz (MMK) is correct:** Stress Urinary Incontinence (SUI) is primarily caused by urethral hypermobility due to the loss of support at the vesicourethral junction. The **Marshall-Marchetti-Krantz (MMK) repair** is a classic retropubic urethropexy procedure. It involves suturing the periurethral tissues and the bladder neck to the **periosteum of the pubic symphysis**. This stabilizes the urethra and restores the anatomical position of the bladder neck, allowing intra-abdominal pressure to be transmitted effectively to the proximal urethra, thereby preventing leakage during stress (coughing/sneezing). **2. Why other options are incorrect:** * **Manchester and Fothergill’s Repair (Options A & B):** These are essentially the same procedure used for **Uterovaginal Prolapse** (specifically when the patient wishes to preserve the uterus). It involves cervical amputation, shortening of the cardinal ligaments (Mackenrodt’s), and anterior colporrhaphy. It does not specifically address the urethral sphincter mechanism. * **Bonney’s Repair (Option D):** This is an outdated term sometimes associated with anterior colporrhaphy or a specific test (Bonney’s test) to identify SUI. It is not a standard surgical repair for SUI in modern practice. **Clinical Pearls for NEET-PG:** * **Gold Standard:** While MMK was popular, the **Burch Colposuspension** (suturing to Cooper’s ligament) became the gold standard retropubic fix because it avoids the risk of osteitis pubis associated with MMK. * **Current Procedure of Choice:** Mid-urethral slings (e.g., **TVT - Tension-free Vaginal Tape** or **TOT - Transobturator Tape**) are now the first-line surgical treatments for SUI. * **Q-tip Test:** A positive test (>30-degree angle change) indicates urethral hypermobility, a hallmark of SUI.

Q: What is the most common cause of vesicovaginal fistula (VVF) in under-developed countries?

Obstetrical injury. **Explanation:** The correct answer is **Obstetrical injury**. In underdeveloped and developing countries, **obstructed labor** is the leading cause of vesicovaginal fistula (VVF). During prolonged labor, the fetal head compresses the maternal bladder and urethra against the pubic symphysis. This results in pressure necrosis of the soft tissues, leading to the formation of a fistula (ischemic VVF) usually 5–10 days postpartum. **Analysis of Options:** * **Obstetrical injury (Correct):** Specifically, prolonged obstructed labor accounts for 80–90% of cases in resource-limited settings. * **Pelvic irradiation:** This is a known cause of "delayed" fistula due to endarteritis obliterans, but it is far less common than obstetric or surgical causes. * **Carcinoma:** Advanced cervical or vaginal malignancy can cause VVF through direct tissue invasion, but it is not the primary epidemiological cause. * **Haemorrhoidectomy:** This is a surgery of the anal canal and is unrelated to the vesicovaginal septum. **High-Yield Clinical Pearls for NEET-PG:** * **Global vs. Local:** In **developed countries**, the most common cause of VVF is **iatrogenic/gynecological surgery** (specifically, Total Abdominal Hysterectomy). In **underdeveloped countries**, it is **obstructed labor**. * **Timing of Presentation:** Post-surgical VVFs usually present within 7–14 days, while post-obstetric (ischemic) VVFs present 5–10 days after delivery. * **Diagnostic Gold Standard:** The **Three-swab test** (Moir’s test) is used to differentiate VVF from ureterovaginal fistula. * **Management:** The surgery of choice is **Latzko’s procedure** (vaginal approach) or the O’Conor technique (transabdominal).

Q: What is the treatment of choice for second-degree uterine prolapse in a 24-year-old nulliparous woman?

Abdominal sling operations. ### Explanation The management of uterine prolapse in young, nulliparous women is focused on **uterine preservation** and maintaining **reproductive function**. **Why Abdominal Sling Operations are the Correct Choice:** In a 24-year-old nulliparous patient, the primary goal is to provide a permanent, strong anatomical correction while preserving the cervix and uterus for future childbearing. **Abdominal sling operations** (e.g., Shirodkar’s abdominal sling, Khanna’s, or Purandare’s) involve using a synthetic mesh or fascia lata to anchor the cervix to the sacral promontory or the anterior rectus sheath. This provides excellent apical support without interfering with the cervical canal or vaginal capacity. **Analysis of Incorrect Options:** * **Fothergill's Repair (Manchester Operation):** This involves amputation of the cervix. It is contraindicated in young women because it leads to cervical incompetence, increased risk of mid-trimester abortions, and cervical dystocia during labor. * **Shirodkar's Procedure:** While Shirodkar described an abdominal sling, the term "Shirodkar's procedure" alone often refers to **cervical cerclage** for cervical incompetence, which is not a treatment for prolapse. * **Le Fort's Repair:** This is a **colpocleisis** (partial vaginal obliteration). It is strictly reserved for elderly, sexually inactive women who are medically unfit for major surgery. **Clinical Pearls for NEET-PG:** * **Treatment of Choice (Young/Nulliparous):** Abdominal Sling Surgery. * **Treatment of Choice (Completed Family/Age <45):** Fothergill’s Repair (if the patient wishes to keep the uterus) or Vaginal Hysterectomy. * **Treatment of Choice (Post-menopausal):** Ward-Mayo’s Operation (Vaginal Hysterectomy with Pelvic Floor Repair). * **Sling Materials:** Synthetic mesh (Mersilene) is now preferred over autologous fascia lata.

Q: In the immediate postoperative period following a hysterectomy, a patient develops leakage of urine. What is the most likely cause?

Bladder injury. **Explanation:** The most common cause of immediate postoperative urinary leakage following a hysterectomy is an unrecognized **bladder injury** (cystotomy). During a hysterectomy, the bladder must be dissected away from the lower uterine segment and cervix (the vesicouterine space). This proximity makes the bladder the most frequently injured organ in the urinary tract during gynecological surgeries. If a perforation occurs and is not identified and repaired intraoperatively, urine will leak into the peritoneal cavity or through the vaginal vault immediately after the procedure. **Analysis of Incorrect Options:** * **Urethral injury:** This is extremely rare during a standard abdominal or vaginal hysterectomy as the urethra is located further down the anterior vaginal wall, away from the primary surgical site of the uterine pedicles. * **Overflow incontinence:** While postoperative urinary retention can occur due to anesthesia or pain, it typically presents with a palpable bladder and "dribbling" rather than continuous leakage. It is a functional issue, not a structural injury. * **Stress urinary incontinence (SUI):** SUI is a chronic condition related to pelvic floor weakness and urethral hypermobility. It presents with leakage during coughing or sneezing, not as a sudden postoperative complication. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of ureteric injury:** At the level of the **isthmus** (where the ureter passes under the uterine artery—"water under the bridge"). * **Timing of presentation:** Bladder injuries (cystotomy) present **immediately** (Day 0-1). Ureterovaginal or Vesicovaginal fistulas (VVF) typically present **7–14 days** postoperatively due to tissue necrosis. * **Diagnostic Test:** If a fistula is suspected, a **Moir’s Blue Test** (Three-swab test) is used to differentiate between VVF (swab turns blue) and ureterovaginal fistula (swab remains white, but wet).

Q: Which of the following is NOT a complication of complicated vesicovaginal fistula?

Location near the cuff. In urogynecology, vesicovaginal fistulae (VVF) are classified into **simple** and **complicated** to determine the surgical approach and prognosis. **Why "Location near the cuff" is the correct answer:** A fistula located at the vaginal cuff (post-hysterectomy) is typically considered a **simple VVF**. These are usually small, located in healthy, well-vascularized tissue, and have not been subjected to prior repair attempts or radiation. They are generally easier to repair surgically (often via a transvaginal approach like the Latzko procedure) with high success rates. **Explanation of Incorrect Options (Criteria for Complicated VVF):** * **Shortened vaginal length:** This indicates significant tissue loss or severe scarring, making a tension-free surgical repair difficult. * **Prior radiation therapy:** Radiation causes endarteritis obliterans and tissue fibrosis. This poor vascularity significantly impairs healing and increases the risk of repair failure. * **Size greater than 3 cm:** Large fistulae (typically >2–3 cm) involve extensive loss of the vesicovaginal septum, often requiring flap interposition (e.g., Martius flap) to ensure successful closure. **NEET-PG High-Yield Pearls:** * **Most common cause of VVF:** In developed countries, it is **post-hysterectomy** (gynecological surgery); in developing countries, it is **obstructed labor**. * **Simple VVF Criteria:** Size <2 cm, supratrigonal location, non-radiated tissue, and no prior repair. * **Gold Standard Investigation:** The **Three-Swab Test** (Moir’s test) helps differentiate VVF from ureterovaginal fistula. * **Surgical Timing:** Traditionally, a 3–6 month wait was advised for tissue inflammation to subside, but early repair is now considered for non-radiated, clean surgical injuries.

Question 1

A 60-year-old female presents with complaints of involuntary passage of urine while coughing or during physical strain. What is the definitive treatment of choice for this patient?

Accepted Answer

Bladder neck repair

Answer

Pelvic floor exercises

Answer

Colposuspension

Answer

Ureter reimplantation

Question 2

A multiparous woman with a history of LSCS presents with cyclical hematuria. What is the most likely diagnosis?

Accepted Answer

Vesicouterine fistula (VUF)

Answer

Ureterovaginal fistula (UVF)

Answer

Bladder endometriosis

Answer

Carcinoma of the cervix

Question 3

The pathology of endometriosis is best explained by which theory?

Accepted Answer

Retrograde menstruation

Answer

Coelomic metaplasia

Answer

Endometrial hyperplasia

Answer

Intraperitoneal immunologic deficit

Question 4

Estrogen therapy for urinary incontinence acts by all mechanisms except?

Accepted Answer

Decrease vascularity of the periurethral capillary plexus.

Answer

Increase collagen deposition, thereby increasing urethral coaptation.

Answer

Increase alpha-adrenergic receptor sensitivity.

Answer

Increase urethral blood flow and urethral closing pressure.

Question 5

Stress incontinence is repaired by which surgical procedure?

Accepted Answer

Marshall-Marchetti-Krantz repair

Answer

Manchester repair

Answer

Fothergill's repair

Answer

Bonney's repair

Question 6

What is the most common cause of vesicovaginal fistula (VVF) in under-developed countries?

Accepted Answer

Obstetrical injury

Answer

Pelvic irradiation

Answer

Carcinoma

Answer

Haemorrhoidectomy

Question 7

Childbirth trauma leading to urinary incontinence is seen least in females with which type of pelvis?

Accepted Answer

Anthropoid pelvis

Answer

Android pelvis

Answer

Gynaecoid pelvis

Answer

Platypelloid pelvis

Question 8

What is the treatment of choice for second-degree uterine prolapse in a 24-year-old nulliparous woman?

Accepted Answer

Abdominal sling operations

Answer

Fothergill's repair

Answer

Shirodkar's procedure

Answer

Le Fort's repair

Question 9

In the immediate postoperative period following a hysterectomy, a patient develops leakage of urine. What is the most likely cause?

Accepted Answer

Bladder injury

Answer

Urethral injury

Answer

Overflow incontinence

Answer

Stress urinary incontinence

Question 10

Which of the following is NOT a complication of complicated vesicovaginal fistula?

Accepted Answer

Location near the cuff

Answer

Shortened vaginal length

Answer

Prior radiation therapy

Answer

Size greater than 3 cm

Urogynecology — MCQs

Urogynecology — MCQs

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