Page 12 of 22

OG15.1 | Common Operative Obstetric Procedures — SDL Guide (Part 3)

Supervised Practice and Clinical Decision-Making

Clinical decision-making in operative obstetrics requires integrating the indication, the prerequisites, the skill level available, the setting's resources, and the patient's values and preferences — all within a compressed time frame. The decision is never purely technical; it is always contextual. A vacuum extraction that would be appropriate in a tertiary centre with a neonatologist present may be inappropriate in a rural district hospital where immediate CS capability is unreliable and there is no trained neonatologist. The right procedure in the wrong setting is still wrong. This contextual judgment — what is right here, now, with this patient, this team, and these resources — is what distinguishes a safe clinician from a technically competent but situationally unaware one. It is also what makes operative obstetrics inherently a team activity: the obstetrician, anaesthesiologist, midwife, theatre team, and neonatologist must all be notified, briefed, and ready before an instrument is picked up or a patient is positioned for LSCS. The pre-procedure communication is not a bureaucratic formality; it is itself a safety intervention that halves the chance of an avoidable error.

A structured decision framework for the second stage:
1. Indication confirmed? — fetal distress, prolonged second stage, maternal exhaustion with a contraindication to pushing?
2. All prerequisites met? — use the ABCDE checklist before picking up any instrument
3. Station and position defined precisely? — if position is uncertain on vaginal examination, ultrasound assessment of fetal position (transperineal or transabdominal) takes 2 minutes and prevents wrong-position forceps application
4. Right instrument for the situation? — vacuum for most second-stage indications; forceps when rapid delivery is needed or vacuum has failed; CS if prerequisites not met, instrument fails, or operator not confident
5. Abandon rule set and agreed? — before starting, the operator must state: 'If there is no descent with the first pull/contraction, I will reassess; after 3 pop-offs/pulls I will abandon and proceed to CS'
6. Theatre and neonatal team ready? — call before starting, not after failing

Provided image

The same structured reasoning applies to elective decisions — cerclage timing, ECV candidacy, planned CS for malpresentation. In each case the algorithm is: indication present → contraindications excluded → correct procedure identified → correct timing → perform with full consent and monitoring.

Self-Assessment

Operative obstetrics is a domain where knowledge and clinical judgment must translate into decisive, time-pressured action. The competency being assessed at your level is not operative skill but clinical reasoning: knowing when to intervene, which intervention is appropriate, what the stopping rules are, and when to escalate. This self-assessment section consolidates the key decision points across all the procedures covered.

For each procedure, mentally work through: What is the indication? What are the three most important prerequisites? What is the single most dangerous complication and how do you recognise it early? What is the stopping rule? Checking your answers against the content above will identify gaps. The micro-quiz questions in this SDL have been designed to test exactly these reasoning skills — scenario, decision, and justification — matching the format you will face in OSCE and viva assessments.

Provided image

Remember: the defining characteristic of a safe operative obstetrician is not technical dexterity alone — it is knowing when NOT to operate, and being willing to call for help, hand over, or change the plan when the clinical situation demands it.