Uterine Rupture Prevention

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Preventing Uterine Rupture — Before It Becomes an Emergency

Most of the work of preventing uterine rupture happens long before a woman is in labour — at the booking visit, in the counselling conversation about mode of delivery, and in how carefully labour is monitored. This guide focuses on that upstream work. For recognizing and managing rupture once it's happening, see our companion Uterine Rupture — Recognition & Emergency Management guide.

🎯 AT A GLANCE — THE PREVENTION FRAMEWORK

Prevention operates on three levels: antenatal risk identification, careful labour management, and systems-level readiness at the delivery facility

Almost every major risk factor for rupture is identifiable at or before booking — this is not a problem that announces itself only in the labour room

GREEN: no identified risk factors — standard antenatal and intrapartum care

AMBER: a known risk factor present (e.g., one prior low transverse caesarean) — needs individualized counselling and a documented labour plan

RED: a high-risk scar type or a strong contraindication to labour — plan the mode of delivery in advance, well before labour onset

📋 ANTENATAL RISK IDENTIFICATION — ASK EARLY

Document any prior uterine surgery in detail at booking — incision type (classical, low transverse, or unknown), indication, and any noted complications

Note the number of prior caesareans — risk rises with each additional scar

Ask about interpregnancy interval — an interval shorter than 18–24 months since the last caesarean raises risk and is worth discussing for future spacing too

Ask specifically about prior uterine rupture, myomectomy (and whether the cavity was entered), or known uterine anomalies

If the prior incision type genuinely can't be confirmed (records unavailable, delivered elsewhere), it's safest to counsel and manage the pregnancy as higher-risk rather than assume a low transverse scar.

✅ CAREFUL TOLAC/VBAC CANDIDATE SELECTION

Best candidates: a single prior low transverse caesarean, no other uterine scars, an adequate pelvis, and ideally spontaneous labour

Favourable signs: a prior vaginal delivery — especially a prior successful VBAC — and a favourable cervix at admission

Have a genuine shared decision-making conversation — discuss the real (low) absolute rupture risk alongside the benefits of avoiding another major surgery

Avoid offering TOLAC after a prior classical or T-incision caesarean, a prior rupture, a contracted pelvis, or any current contraindication to vaginal birth

🛠️ SAFE LABOUR MANAGEMENT PRACTICES

1

Continuous electronic fetal monitoring throughout a TOLAC labour — the fetal heart is often the earliest warning of a problem

2

Use a partograph diligently in every labouring woman — this catches obstructed labour early, scarred uterus or not

3

Use oxytocin cautiously in VBAC — start low, titrate slowly, and keep a low threshold to stop for hyperstimulation

4

Prefer mechanical methods over prostaglandins for cervical ripening in VBAC where a choice exists

5

Reassess promptly whenever the labour pattern changes unexpectedly — don't wait out a change you can't yet explain

⏸️ STOP AND REASSESS — TOLAC CHECKPOINTS

New or worsening pain, especially suprapubic or scar-related

Any change in the fetal heart rate pattern

Slowing or arrest of labour progress on the partograph

Any of these → stop oxytocin, reassess in person, and involve a senior obstetrician promptly — don't just keep monitoring passively

🏥 SYSTEMS-LEVEL PREVENTION

Offer TOLAC only where immediate emergency caesarean, blood bank, and anaesthesia support genuinely exist — "available in principle" is not the same as "ready within minutes"

For women without access to such a facility, plan the delivery location in advance, not once labour has started

Community awareness of the danger signs of obstructed labour, and timely referral, prevents rupture in unscarred uteri too — this matters as much as any single-patient decision

Consistent partograph training across every birth attendant is itself a system-wide prevention strategy, not just a documentation exercise

Short Interpregnancy Interval

Counsel on spacing for future pregnancies

Individualize the TOLAC decision if under 18 months since the last caesarean

Multiple Prior Caesareans

Some centres still consider TOLAC after two prior low transverse caesareans in select cases

Requires extra caution and senior-level counselling

Unknown Prior Scar Type

Make every reasonable effort to obtain the operative record

If truly unknown, counsel and manage as higher-risk

Grand Multiparity

Monitor labour progress vigilantly even without a scar

Avoid augmentation unless genuinely indicated

Plan Ahead

Decide by 36 Weeks

The mode-of-delivery conversation for a scarred uterus works best as an unhurried discussion well before labour — not a decision made in the middle of contractions.

Document the plan clearly in the antenatal record — it needs to be accessible to whoever is actually on duty at delivery, not just the counselling clinician

Reconfirm the plan at each remaining visit as term approaches

When real uncertainty remains about scar type or risk, default to the more cautious option

Make sure the delivery facility itself is actually equipped for emergency response — the safest plan still depends on system readiness

Reminder: prevention starts at the first antenatal visit, not in the labour room.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and counselling; exact TOLAC eligibility criteria and interpregnancy interval thresholds vary by guideline and institution — follow local protocol.

"Ruptured Uterus – Lessons from the Frontline"

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Uterine Rupture — Recognition & Emergency Management

Uterine rupture is a full-thickness tear through the uterine wall and overlying serosa — distinct from a dehiscence, a partial scar separation that doesn't breach the peritoneum and is usually silent and incidental. A true rupture can spill the fetus into the abdominal cavity and cause catastrophic, sometimes concealed, haemorrhage. This is a category 1 emergency — outcome depends on how fast it's recognized and acted on.

🎯 AT A GLANCE — WHO'S AT RISK

Prior uterine surgery is the leading risk factor — a classical (vertical) caesarean carries far higher risk than a prior low transverse caesarean

Also: prior myomectomy (especially if the cavity was entered), prior rupture, grand multiparity, uterine anomalies, short interval since a prior caesarean, or uterine over-distension (multiples, polyhydramnios)

Obstructed, unmonitored labour — with an intact, unscarred uterus — remains a leading cause where timely access to caesarean delivery is limited

GREEN: no prior uterine surgery, no risk factors, normally progressing labour — low background risk

AMBER: prior low transverse caesarean or myomectomy attempting labour — real risk, needs continuous monitoring

RED: prior classical/T-incision caesarean, prior rupture, obstructed labour, or current signs of rupture — labour is contraindicated, or this is an emergency in progress

🔎 RECOGNITION — OFTEN SUBTLE AT FIRST

Sudden, severe, "tearing" abdominal pain that persists between contractions — unlike ordinary labour pain, which eases

Previously efficient contractions suddenly stop, and — critically — the pain of labour may abruptly ease or disappear along with them

This apparent relief is a trap, not good news: a sudden cessation of pain after a period of severe, established labour pain is a classic and ominous sign of rupture — it reflects the uterus no longer contracting effectively, not the situation improving. Don't let it reassure you.

Loss of fetal station on exam — a presenting part that was descending becomes unexpectedly high or mobile

Vaginal bleeding can be minimal even with major haemorrhage — significant bleeding may be entirely concealed within the abdomen

Scar tenderness in a woman attempting VBAC is a real but less reliable sign than the fetal heart rate

Fetal heart rate abnormality — often sudden, severe bradycardia — is frequently the earliest and most sensitive sign. Don't wait for maternal symptoms to appear before acting on it.

🚨 SUSPECT RUPTURE — ACT NOW

Sudden severe abdominal pain that doesn't ease between contractions

A sudden, unexpected easing or disappearance of established labour pain — this is a false relief, not an improvement

Sudden fetal bradycardia or a catastrophic CTG change, especially during a trial of labour after caesarean

Labour that abruptly stops progressing

Maternal tachycardia or hypotension out of proportion to visible vaginal bleeding

Any of the above → call for help immediately and move toward delivery, don't wait to "confirm" further

🛠️ IMMEDIATE ACTIONS

1

Call for help — senior obstetrician, anaesthetist, neonatal team, theatre, blood bank, all at once

2

Stop oxytocin immediately if it's running

3

Two large-bore IV lines; send blood for crossmatch; activate the massive transfusion protocol if needed

4

Proceed directly to emergency laparotomy — this is a crash caesarean, not a "watch and see"

5

Prepare for possible hysterectomy if the uterus can't be safely repaired

🏥 SURGICAL MANAGEMENT

Deliver the baby first — then assess and address the uterine defect

Repair (uterorrhaphy) is often feasible for a clean lower-segment tear, especially if the patient is stable and future fertility is desired

Hysterectomy is needed for extensive rupture, uncontrolled haemorrhage, or when repair isn't feasible — such as extension into the cervix, broad ligament, or major vessels

Carefully assess the bladder and ureters — a lower-segment rupture can extend into them given their close proximity

🗓️ PREVENTION & TOLAC/VBAC COUNSELLING

Offer a trial of labour after caesarean (TOLAC) primarily to women with a single prior low transverse caesarean and no other major risk factors

Avoid TOLAC after a prior classical/T-incision caesarean or a prior rupture

Continuous fetal monitoring is mandatory during TOLAC — the fetal heart is often the earliest warning

TOLAC should only be offered where immediate emergency caesarean capability exists — not where a rapid surgical response isn't available

Use oxytocin cautiously during VBAC induction/augmentation — it raises rupture risk (see our Induction & Augmentation guide)

Prior Classical Caesarean

Highest-risk scar type — can rupture even before labour begins

Planned caesarean before labour onset, not a trial of labour

Obstructed Labour

Can rupture even an unscarred uterus if labour is prolonged and unmonitored

Timely partograph use and referral prevent this

Grand Multiparity

Repeated stretching thins the myometrium over time

Monitor labour progress closely, even without a scar

Prior Myomectomy

Risk depends on whether the endometrial cavity was entered

Individualize mode of delivery with the original operative details in hand

Category 1 Emergency

Deliver Without Delay

30

MINUTES
TYPICAL DECISION-TO-DELIVERY TARGET

Once rupture is suspected, every additional minute raises both the fetal hypoxic risk and the volume of concealed maternal haemorrhage. Resuscitation and surgical preparation happen in parallel, not one after the other.

Move directly to theatre once rupture is suspected — don't wait for confirmatory imaging

Resuscitate and operate at the same time — ongoing fluid or blood transfusion should not delay a crash caesarean

Have anaesthesia and neonatal teams ready before arrival in theatre, not after

Document timings clearly — decision time, incision time, delivery time, and estimated blood loss

Reminder: globally, obstructed labour with delayed access to caesarean remains a leading cause of uterine rupture — real prevention starts with careful labour monitoring and timely referral, long before the emergency itself.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and emergency drills; exact risk figures and timing targets vary by protocol and setting — follow local institutional guidelines.

Recurrent Pregnancy Loss

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Recurrent Pregnancy Loss — Evaluation & Management

Recurrent pregnancy loss (RPL) is generally defined as two or more consecutive pregnancy losses before 20–24 weeks — some societies still use a threshold of three, and definitions vary, so check which convention your workup pathway follows. Behind the definition sits a couple who deserve a thorough, unhurried evaluation — and the honest reassurance that even without a clear cause, most go on to have a successful pregnancy.

🎯 AT A GLANCE — WHEN TO START A WORKUP

Causes broadly fall into four categories: genetic, anatomic, endocrine, and autoimmune — with a substantial share remaining unexplained even after full evaluation

GREEN — One early loss: common and usually not an indication for formal workup; offer reassurance

AMBER — Two consecutive losses: consider starting evaluation, individualized by age, anxiety, and reproductive history

RED — Three or more losses, or any second-trimester loss: full RPL workup is indicated

Timing is a clue: first-trimester losses point more toward genetic/chromosomal causes; a second-trimester loss shifts suspicion toward an anatomic cause or cervical insufficiency.

🧬 THE FOUR CATEGORIES OF CAUSE

Genetic: a parental balanced translocation (2–4% of couples), or sporadic embryonic aneuploidy — the single most common cause of any individual loss, rising with maternal age

Anatomic: a septate uterus (the anomaly most strongly linked to RPL), intrauterine adhesions, submucosal fibroids, or cervical insufficiency (second-trimester pattern)

Endocrine: poorly controlled diabetes, untreated thyroid dysfunction, hyperprolactinaemia

Autoimmune: antiphospholipid syndrome (APS) — the best-established and most treatable cause in this category

🧪 WORKUP — WHAT TO TEST FOR

1

Parental karyotyping — both partners, looking for a balanced translocation

2

Karyotype of products of conception, where available, especially after a second or third loss

3

Pelvic imaging — 3D ultrasound, saline infusion sonography, or MRI to assess uterine anatomy

4

Antiphospholipid antibodies — lupus anticoagulant, anticardiolipin, and anti-β2-glycoprotein I, each confirmed twice, 12 weeks apart

5

Thyroid function (TSH) and glycaemic screening where risk factors are present

Routine testing for most inherited thrombophilias (beyond APS) is increasingly not recommended by major guidelines — the evidence linking them causally to RPL is weak.

⚕️ ANTIPHOSPHOLIPID SYNDROME — DON'T MISS THIS ONE

Diagnosed with a clinical criterion (pregnancy loss or thrombosis) plus a laboratory criterion (persistent antibody positivity on two occasions, 12 weeks apart)

Of all RPL causes, this is the one where treatment most clearly and consistently improves the live birth rate

Two Different Regimens — Don't Mix Them Up

Obstetric APS only (loss history, no personal thrombosis): low-dose aspirin 75–100 mg daily plus prophylactic-dose LMWH (e.g., enoxaparin 40 mg once daily, or weight-adjusted)

APS with prior venous/arterial thrombosis: low-dose aspirin plus therapeutic-dose anticoagulation throughout pregnancy — these patients need full anticoagulation regardless of pregnancy

Timing

Aspirin: start as soon as pregnancy is confirmed (some start pre-conception); continue until around 36 weeks, or per your obstetric/anaesthesia protocol

LMWH: start once a viable intrauterine pregnancy is confirmed on ultrasound; continue throughout pregnancy

Postpartum: continue anticoagulation for at least 6 weeks — the postpartum period carries the highest thrombotic risk of all

Around delivery: coordinate the last LMWH dose with anaesthesia well in advance — a prophylactic dose is generally held for at least 12 hours, and a therapeutic dose for at least 24 hours, before a neuraxial block. Plan this early, not on the day.

Genetic (Parental Translocation)

Genetic counselling is essential

Options include PGT-SR with IVF, or natural conception with prenatal diagnosis (CVS/amniocentesis)

Anatomic

Hysteroscopic septum resection improves outcomes in a septate uterus

Cervical insufficiency is managed with cerclage in a future pregnancy

Endocrine

Optimize thyroid function before conception

Optimize glycaemic control if diabetic

Unexplained

Supportive, closely-monitored early pregnancy care

Aspirin and progesterone are sometimes used, though evidence is mixed — individualize

For Counselling

Most Go On To Have a Baby

60–75%

LIVE BIRTH RATE
NEXT PREGNANCY

Even after multiple unexplained losses, most women who conceive again will carry a pregnancy to a live birth with supportive care alone. The number of prior losses and maternal age matter more for prognosis than whether a specific cause was ever found.

A full workup finds no clear cause in up to half of couples — this is common, not a failure of testing

Supportive, closely-monitored care in early pregnancy ("tender loving care") is itself linked to better outcomes in trials

Grief and anxiety after repeated loss are normal — pair medical reassurance with genuine emotional support, not just a test result

Reminder: "unexplained" is a description of our testing, not a verdict on the pregnancy ahead.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and counselling; exact definitions, testing thresholds, and treatment protocols vary by guideline body — follow local and institutional practice.

Spotting Trouble Before It Strikes: Maternal Early Warning Systems

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Maternal Early Warning Systems — Catching Deterioration Early

A maternal early warning system is a structured set of vital-sign trigger thresholds designed to flag physiological deterioration before it becomes a crisis — from haemorrhage to sepsis to a hypertensive emergency. Pregnant and postpartum women often compensate well and can look deceptively stable right up until they suddenly don't — this tool exists to catch the drift before that happens, not after.

🎯 AT A GLANCE — WHY MATERNAL-SPECIFIC

Pregnancy shifts normal vital sign ranges — resting heart rate rises, blood pressure often dips in the second trimester. Generic adult early-warning thresholds either over-trigger or miss real deterioration in this population

Most maternal early warning tools use a small set of parameters with clear trigger cut-offs — simple enough to use reliably at the bedside, every time

GREEN: all parameters within normal pregnancy-adjusted range — routine monitoring continues

AMBER: one parameter drifting toward the edge of normal — increase monitoring frequency, reassess soon

RED: one or more parameters in the trigger zone — immediate bedside evaluation, escalate now

📋 THE CORE TRIGGER PARAMETERS

Systolic BP: <90 or >160 mmHg

Diastolic BP: >100 mmHg

Heart rate: <50 or >120 bpm

Respiratory rate: <10 or >30 breaths/min

Oxygen saturation: <95% on room air

Urine output: <35 mL/hour for 2+ hours

Mental state: new agitation, confusion, or unresponsiveness

Pre-eclampsia: non-remitting headache or shortness of breath

A single trigger is enough to act on — this is not a scoring system you wait to add up. Some hospitals do use additive scoring tools (like MEOWS) instead — either way, the principle is the same: don't wait for multiple abnormalities to stack up.

🚨 ONE TRIGGER IS ALL IT TAKES

Any single red-zone vital sign → immediate bedside evaluation, not a "wait and repeat"

New confusion, agitation, or unresponsiveness → treat as an emergency until proven otherwise

A woman with pre-eclampsia reporting a severe or non-remitting headache → evaluate now, don't just document and move on

Trust the trigger even when the patient "looks fine" — that's exactly when these tools matter most

🗓️ HOW THE RESPONSE SHOULD WORK

1

Any single trigger → immediate bedside assessment by the nurse or midwife caring for the patient

2

Abnormal finding on assessment → notify the on-call obstetric provider without delay

3

Any red/severe trigger → physician bedside evaluation within a defined time (commonly 30 minutes)

4

Hand over using SBAR — Situation, Background, Assessment, Recommendation

5

If the response still feels inadequate, use CUS words — Concerned, Uncomfortable, Safety issue (see our Maternal Sepsis guide)

🧠 WHY EARLY WARNING SYSTEMS FAIL IN PRACTICE

Alarm fatigue: too many false triggers teach staff to dismiss the next one — this is the same "normalization of deviance" pattern that lets sepsis get missed

Inconsistent measurement: respiratory rate in particular is often estimated rather than actually counted, hiding an early warning sign

A trigger fires, but nobody escalates: the tool only works if the response actually happens — a documented trigger with no action taken protects no one

Ignoring the patient's baseline: a chronically hypertensive woman's "usual" blood pressure may already read as abnormal on generic thresholds — use trends and context, not the number alone

⏱️ WHEN MONITORING MATTERS MOST

Antenatal admission: establish a true baseline early — it's what later "abnormal" readings get compared against

Labor and delivery: continuous vigilance as haemodynamic demands shift quickly

First 24–72 hours postpartum: the highest-risk window for haemorrhage, hypertensive crisis, and sepsis — do not relax monitoring just because the baby has arrived

MEWC

Maternal Early Warning Criteria — a single-trigger approach

Any one abnormal parameter prompts evaluation

MEOWS

Modified Early Obstetric Warning Score — an additive scoring system

Combines smaller deviations into a total score

Bundled Trigger Tools

Pairs trigger criteria with a standardized response protocol

The bundled response is what drives outcome improvement, not the trigger list alone

Local Adaptation

Adapt thresholds and escalation roles to your unit's staffing and resources

A system nobody follows helps no one — usability matters as much as design

Escalation Target

Bedside Within

30

MINUTES FOR
A RED TRIGGER

A trigger without a timely response is just a note in the chart. Whatever the exact number your protocol uses, the principle is the same: a severe trigger needs a clinician at the bedside soon, not "when things are quiet."

Treat the trigger as the signal to act — not a prompt to simply repeat the observation and wait

Use SBAR to make the handover clear and hard to dismiss

Escalate again with CUS language if the first response doesn't match the concern

Review trigger-to-response times regularly as a unit — a tool that isn't audited quietly stops being used

Reminder: the goal isn't a perfectly clean set of vital signs — it's a system that reliably turns one abnormal number into a clinician at the bedside.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and triage; exact trigger thresholds, scoring systems, and escalation timeframes vary by institution — follow local protocol.

BLOOD TRANSFUSION

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Blood Transfusion in Obstetrics — A Practical Guide

Transfusion is often life-saving in obstetric haemorrhage and severe anaemia — but every component carries real risks, so it should be targeted to a clinical need, not given reflexively to correct a number. This guide covers components, compatibility testing, massive transfusion, and how to recognize a reaction early. For the haemorrhage side of this picture, see our companion Hemorrhagic Shock in Obstetrics guide.

🩸 AT A GLANCE — WHEN TO TRANSFUSE

Acute haemorrhage with instability: transfuse based on clinical status and ongoing loss — not a single lab value

Severe symptomatic anaemia (e.g., Hb <7 g/dL, or <8 g/dL with symptoms or cardiac disease) not responding to other measures

Planned transfusion for a known bleeding disorder or anticipated major blood loss (e.g., placenta accreta spectrum surgery)

GREEN: normal or mild anaemia, no active bleeding — oral iron and monitoring

AMBER: moderate anaemia or minor ongoing bleeding — consider transfusion based on symptoms and trend

RED: major haemorrhage or haemodynamic instability — transfuse urgently, activate massive transfusion protocol if criteria are met

Packed Red Cells (PRBC)

Restores oxygen-carrying capacity

One unit raises haemoglobin by roughly 1 g/dL

Fresh Frozen Plasma (FFP)

Replaces clotting factors

Used for coagulopathy and in massive transfusion

Platelets

For thrombocytopenia or platelet dysfunction with bleeding

Target often >50×10⁹/L for delivery/surgery; higher for neuraxial anaesthesia

Cryoprecipitate

Concentrated fibrinogen and factor VIII/XIII

Used when fibrinogen is low — remember pregnancy's normal fibrinogen runs higher, so "low-normal" may already be too low

🧯 MASSIVE TRANSFUSION PROTOCOL (MTP)

Typical Activation Criteria

Anticipated need for >4 units PRBC within 1 hour, or replacing >50% of blood volume within 3 hours

Ongoing severe haemorrhage with haemodynamic instability, regardless of exact unit count

Core Principles

Transfuse in a balanced ratio — PRBC : FFP : platelets, roughly 1:1:1 — rather than red cells alone

Correct fibrinogen with cryoprecipitate if it falls below the pregnancy-adjusted target

Give tranexamic acid early — benefit is time-dependent (see our Hemorrhagic Shock guide for the 3-hour window)

Limit plain crystalloid — over-resuscitating with fluid dilutes clotting factors and worsens coagulopathy

🧪 CROSS-MATCHING & COMPATIBILITY

Type & screen: identifies blood group and checks for antibodies — fast, doesn't reserve specific units

Type & crossmatch: full compatibility testing against reserved units — more thorough, but typically takes 30–45 minutes

Emergency uncrossmatched O-negative blood: used when there's no time to wait; switch to crossmatched blood as soon as it's available

Rh-negative woman given Rh-positive blood in an emergency: notify the blood bank and give an appropriate dose of anti-D afterward — this is a bigger dose than routine prophylaxis and should be calculated with transfusion medicine input.

🚨 RECOGNIZE A TRANSFUSION REACTION

Fever, chills, back pain, or dark urine → possible acute haemolytic reaction

Hives, itching, or wheeze → allergic reaction, possible anaphylaxis

Sudden breathlessness or hypoxia within 6 hours → possible TRALI (transfusion-related acute lung injury)

Breathlessness, hypertension, signs of fluid overload → possible TACO (transfusion-associated circulatory overload)

⚠️ WATCH FOR DURING MASSIVE TRANSFUSION

1

Hypothermia — actively warm all fluids and blood products

2

Hypocalcaemia — from citrate in stored blood; check and correct calcium

3

Hyperkalaemia — from stored red cells, especially with rapid large-volume transfusion

4

Dilutional coagulopathy — if PRBC is given without matching FFP/platelets

Rh-Negative Women

Give Rh-negative blood whenever possible

If Rh-positive blood is unavoidable in an emergency, arrange anti-D afterward

Antenatal Anaemia

Prioritize iron correction when time allows

Reserve transfusion for severe, symptomatic, or acute-loss cases

Declining Blood Products

Discuss alternatives early — cell salvage, iron, tranexamic acid, meticulous surgical haemostasis

Document wishes clearly; involve institutional ethics support as needed

After Major Transfusion

Recheck hemoglobin before discharge

Continue iron supplementation postpartum

First Response

Stop The Transfusion

Whatever the suspected reaction, this is always the first move. Stopping immediately limits how much incompatible or reactive blood the patient receives — it gives every other intervention room to work.

Stop the transfusion and disconnect the blood bag, keeping the IV line open with plain saline

Recheck patient identity and unit labels immediately — a mismatch is the single most common cause of acute haemolytic reactions

Notify the blood bank right away; send the remaining unit and a fresh patient blood sample for workup

Treat symptomatically while investigating — oxygen, fluids, antihistamines or steroids for allergic reactions, escalate urgently for anaphylaxis or instability

Reminder: most severe reactions are preventable with correct patient and unit identification — not exotic testing.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and triage; transfusion thresholds, ratios, and reaction-management steps vary by institution — follow local blood bank and transfusion medicine protocol.

ANTENATAL CORTICOSTEROIDS

SWARAJ HOSPITAL & RESEARCH INSTITUTE

BOLANGIR, ODISHA  •  OBSTETRICS & GYNAECOLOGY CLINICAL PATHWAY SERIES

Clinician Reference Infographic

Antenatal Corticosteroids (ACS) — A Practical Guide

Antenatal corticosteroids accelerate fetal lung maturation when given to a woman at risk of preterm birth, meaningfully reducing neonatal respiratory distress syndrome, intraventricular haemorrhage, and death. They are one of the highest-yield interventions in all of obstetrics — but the benefit depends heavily on giving the right drug, at the right time, in the right window before delivery.

🎯 AT A GLANCE — WHO SHOULD RECEIVE ACS

Any woman at risk of preterm birth within the next 7 days — from preterm labor, PPROM, or a planned preterm delivery for a maternal or fetal indication

GREEN — Term (≥37 weeks): not indicated

AMBER — Late preterm (34+0 to 36+6 weeks): consider if birth is likely within 7 days and no prior course has been given — benefit is real but more modest

RED — Early/moderate preterm (24+0 to 33+6 weeks): strongly indicated if birth is likely within 7 days — give promptly

💉 DRUGS & DOSING REGIMENS

Betamethasone: 12 mg IM, two doses, 24 hours apart

Dexamethasone: 6 mg IM, four doses, 12 hours apart

Either drug is acceptable — choice usually comes down to local availability and protocol, not a meaningful difference in benefit

A "complete course" means every scheduled dose has been given — but even a partial course has some benefit if delivery happens sooner than expected.

🔬 MECHANISM OF ACTION — HOW ACS WORKS

Betamethasone and dexamethasone cross the placenta and bind glucocorticoid receptors in fetal tissue, switching on genes that drive structural maturation

In the lungs: accelerates maturation of type II pneumocytes and boosts surfactant production — surfactant lowers surface tension in the air sacs, keeping them open after birth

Also thins the air–blood barrier and increases lung compliance, so the newborn lung is mechanically ready to breathe air effectively

Beyond the lungs: stabilizes fragile blood vessels in the brain's germinal matrix (lowering IVH risk) and matures the gut lining (lowering NEC risk)

Timeline of effect: measurable benefit starts around 18–24 hours after the first dose, peaks near 48 hours, and lasts about 7 days — this is exactly why the "24 hours to 7 days" window exists.

⏱️ THE OPTIMAL TIMING WINDOW

Best benefit: delivery occurring 24 hours to 7 days after completing the course

Delivered sooner: even a single dose shortly before birth offers some benefit — never withhold it because "there's no time to finish"

Delivered later: benefit fades beyond 7 days — a single rescue course may be considered if still preterm and now at renewed risk

🚨 NEVER DELAY DELIVERY FOR STEROIDS

Non-reassuring fetal status, severe pre-eclampsia with uncontrolled BP, or placental abruption all override waiting for a steroid course

Give the first dose if time genuinely allows — but the obstetric indication for urgent delivery always comes first

A partial or even a single dose is still worthwhile; an unsafe delay is not

🔁 REPEAT (RESCUE) COURSE

Consider one rescue course if the prior course was given more than 7–14 days ago (per local protocol), the pregnancy is still under 34 weeks, and preterm birth is now likely again within 7 days

Avoid multiple repeat courses — repeated exposure has been linked to lower birth weight and raises theoretical concerns about neurodevelopment

One rescue course is reasonable; routine repeated courses are not — individualize beyond a single rescue with senior input.

💧 SPECIAL SITUATION — PRETERM PRELABOUR RUPTURE OF MEMBRANES (PPROM)

PPROM is one of the most common reasons ACS is given — ruptured membranes themselves don't change the dose or drug choice

Give a course promptly on diagnosis if the pregnancy is under the usual gestational cut-off, since the time to delivery after PPROM is often unpredictable

ACS does not meaningfully increase maternal or neonatal infection rates in PPROM — this has been consistently shown across trials, and the lung benefit for the baby outweighs the theoretical infection concern

Best paired with latency antibiotics per local protocol — steroids and antibiotics are complementary decisions here, not competing ones

Watch for the interpretation trap: the transient leukocytosis steroids cause (see Side Effects) can muddy infection markers in a population already at higher infection risk. Lean on clinical signs — fever, uterine tenderness, fetal tachycardia, foul-smelling liquor — more than an isolated raised WBC in the days after dosing.

If the pregnancy continues well past the 7-day benefit window without delivery, and preterm birth risk re-emerges, a single rescue course can be considered — same criteria as above

👶 WHY WE GIVE IT — NEONATAL BENEFITS

Reduces respiratory distress syndrome (RDS) and the need for respiratory support

Reduces intraventricular haemorrhage (IVH), necrotizing enterocolitis (NEC), and neonatal death

Benefit is strongest from 24–34 weeks; in the late preterm window (34–36+6 weeks) the effect is more modest but still real — mainly less transient respiratory distress

⚠️ SIDE EFFECTS TO ANTICIPATE

Maternal

Transient hyperglycaemia — peaks 12–24 hours after a dose and can last several days; matters most in diabetic mothers

Transient leukocytosis (raised white cell count) — can mimic or mask signs of infection on blood tests

Mild, usually clinically insignificant rise in blood pressure

Rare — pulmonary oedema: risk rises when steroids are combined with tocolytics and generous IV fluids; watch fluid balance closely

Fetal / Neonatal

Transiently reduced fetal movements and heart rate variability for 48–96 hours — an expected response, not a sign of compromise

Neonatal hypoglycaemia — from rebound after the maternal glucose effect wears off

With repeated courses: lower birth weight, and theoretical neurodevelopmental concerns (see Repeat Course above)

Most of these effects are transient and expected — anticipating a temporary dip in fetal heart rate variability after dosing prevents unnecessary alarm or unnecessary intervention.

Diabetes (Pre-existing or Gestational)

Steroids transiently raise maternal blood glucose

Anticipate closer glucose monitoring, and possible insulin adjustment, for 3–5 days

Suspected Chorioamnionitis

Not an absolute contraindication

Weigh infection risk individually, with senior input

Multiple Pregnancy

Same maternal dose regardless of the number of fetuses

Indication and timing principles are unchanged

Late Preterm (34–36+6 wks)

Only if no prior course was given

Smaller absolute benefit — still worth giving if birth is likely within 7 days

Optimal Window

24 Hours to 7 Days

1hr–7d

FROM FIRST DOSE
TO BEST-TIMED DELIVERY

Maximum neonatal benefit occurs when delivery happens in this window after the course is completed — not so soon that the drug hasn't acted, and not so late that the effect has faded.

Even a single dose shortly before birth has some benefit — don't withhold it because delivery seems imminent

If delivery ends up more than 7 days away, reconsider a single rescue course closer to the time, if still preterm

Never delay a medically necessary urgent delivery solely to finish the steroid course

Document the timing of each dose clearly — it shapes what the neonatal team expects and plans for

Reminder: the goal is a baby delivered in the window of benefit, not a "completed course" for its own sake.

Swaraj Hospital & Research Institute · Department of Obstetrics & Gynaecology, Bolangir, Odisha

Clinician-facing summary for structured teaching and triage; exact gestational cut-offs, repeat-course intervals, and dosing regimens vary by guideline — follow local institutional protocol.