OG26.1-2,OG27.1-3 | Genital Trauma and Infections — Assignment

CLINICAL SCENARIO

Vesicovaginal fistula (VVF) remains a devastating complication of obstructed labour in resource-limited settings. A woman who leaks urine continuously following a difficult delivery loses not only bladder function but often her social standing, her livelihood, and her marriage. In this assignment you will analyse the pathogenesis and classification of obstetric genital fistulae, apply a structured diagnostic approach to differentiate fistula types, critically evaluate management principles, and contextualise the condition within the Indian public health framework. This written analysis should demonstrate your ability to integrate anatomy, pathophysiology, clinical reasoning, and health-system thinking.

Section 1 — Pathogenesis and Classification (approximately 250 words)

Guidance: Explain the mechanism by which prolonged obstructed labour produces a vesicovaginal fistula. Include: the anatomical relationships between the bladder, vagina, and presenting fetal part; the concept of pressure necrosis and ischaemia over the obstetric conjugate; the time course from delivery to fistula development (day 3-10 slough); and the WHO/ICUD classification of genital fistulae by aetiology (obstetric vs surgical) and by anatomical site (VVF, UVF, urethrovaginal, rectovaginal, combined). Explain why obstetric fistulae are predominantly found in the posterior bladder base / trigone area.

Section 2 — Differential Diagnosis: VVF vs UVF vs RVF (approximately 250 words)

Guidance: A woman presents post-partum or post-operatively with continuous urinary leakage. Construct a logical diagnostic algorithm to differentiate vesicovaginal fistula, ureterovaginal fistula, and urethrovaginal fistula. Address: (a) clinical clues from the history (timing of onset, ability to void, sensation of bladder filling); (b) the methylene blue dye test — technique, interpretation, and limitations; (c) the role of intravenous urography / CT urogram; and (d) cystoscopy findings. Apply the same framework to distinguish urinary fistula from rectovaginal fistula (gas/faeces vs urine leakage).

Section 3 — Principles of Management (approximately 400 words)

Guidance: Describe the complete management pathway for an obstetric VVF: (a) immediate management — continuous Foley catheter drainage, role in spontaneous closure of small fistulae, duration; (b) timing of surgical repair — the traditional '3-month rule' and the evidence for earlier repair (6 weeks) for well-vascularised surgical fistulae; (c) surgical principles — the Latzko transvaginal repair and transabdominal (O'Connor) repair: indications for each, key steps, and requirement for tension-free multilayer closure with interposition flaps (Martius) for complex fistulae; (d) post-operative care — duration of catheterisation, antibiotic prophylaxis, activity restrictions; and (e) prevention — active management of the third stage, partograph monitoring, timely caesarean for obstructed labour, skilled birth attendance.

Section 4 — Public Health Perspective in India (approximately 200 words)

Guidance: Contextualise obstetric fistula within the Indian health system. Address: estimated burden in India (National Family Health Survey data; predominantly affecting adolescent and young rural women); social consequences (social isolation, abandonment, depression); health-system factors perpetuating the problem (home deliveries, access to skilled attendants, delay in referral); Government of India initiatives (Janani Suraksha Yojana, PMSMA, National Fistula Repair Programme); and the role of fistula camps and tertiary referral centres. What competencies does the graduating doctor require to prevent and detect obstetric fistula?

PEER REVIEW

Read your peer's essay carefully. Use the rubric criteria as your guide. For each criterion, write 2-3 sentences identifying: (1) what the author did well, (2) one specific improvement they could make (be constructive and specific — do not write 'needs more detail' without specifying what detail). Then assign a score for each criterion. Your feedback must be grounded in the essay text.