Maternal Sepsis: Early Recognition and Multidisciplinary Response

Maternal sepsis is a time-critical obstetric emergency in which infection triggers organ dysfunction during pregnancy, labour, after birth, or following pregnancy loss. It can develop from chorioamnionitis, endometritis, urinary infection, pneumonia, wound infection, mastitis, or an invasive group A streptococcal infection. The first signs may be subtle, particularly when normal pregnancy physiology masks deterioration. Learn more about Neonatal Sepsis Diagnosis And Management In Resource Limited Settings.

A safe response depends on recognising a change from the woman’s usual condition, escalating promptly, and treating infection while investigating its source. Midwives, obstetricians, emergency clinicians, anaesthetists, microbiologists, pharmacists, nurses, neonatal teams and retrieval services each have a defined role. Clear communication with the woman and her support people is equally important.

Australian services must account for different settings, from a tertiary maternity unit in Melbourne or Brisbane to a small hospital serving a wide rural and remote area. Distance, weather, workforce availability and transfer times can affect care. A practical sepsis pathway therefore needs to work in a busy metropolitan ward and during an overnight shift in the bush.

Why Maternal Infection Can Deteriorate Quickly

Pregnancy changes cardiovascular, respiratory and immune function. Heart rate, circulating volume, oxygen consumption and white cell counts may already be higher than in a non-pregnant adult. A woman with severe infection can therefore appear “not too bad” while organ dysfunction is emerging. A normal temperature also does not exclude serious infection, especially after antipyretic medication or in an early presentation.

Clinicians should assess the whole pattern rather than wait for a single abnormal observation. New confusion, unusual drowsiness, breathlessness, reduced urine output, rigors, severe pain, mottled skin, hypotension, tachycardia or a marked change in behaviour warrant urgent review. The postpartum period deserves particular attention because fatigue, pain and expected bleeding can obscure deterioration.

A focused history should cover recent procedures, caesarean or vaginal birth, ruptured membranes, retained products, urinary symptoms, respiratory illness, skin or wound problems, intravenous devices, antibiotic exposure and relevant medical conditions. The source may be pelvic, urinary, respiratory, abdominal, wound-related or disseminated, and more than one infection may be present.

Recognising Deterioration Before Collapse

Early warning systems are useful when they support clinical judgement rather than replace it. A rising respiratory rate, increasing oxygen requirement, persistent tachycardia, falling blood pressure or reduced urine output should prompt action. In pregnancy, thresholds may differ from standard adult tools, so services should use a validated maternity observation chart and local escalation policy.

The woman’s own account is a valuable clinical signal. She may say that she feels suddenly different, has severe chills, cannot catch her breath, or has pain that is unlike normal postnatal discomfort. Families and support people may notice confusion, pallor or an abrupt loss of energy. Listening carefully can shorten the time from deterioration to treatment.

Assessment should be repeated after every intervention. Record observations, mental state, fluid balance, oxygen saturation, pain, capillary refill and response to fluids or antimicrobials. Blood tests may include full blood count, renal and liver function, coagulation studies, blood gas and lactate, guided by the clinical picture. Cultures should be collected promptly when this does not create a harmful delay.

Fetal assessment is part of maternal assessment during pregnancy and labour. Fetal tachycardia or other cardiotocography changes may reflect maternal infection or hypoperfusion. The priority is to stabilise the mother, involve the obstetric and neonatal teams, and consider birth when clinically indicated rather than treating delivery as a substitute for source control.

The First Hour Of Coordinated Care

A suspected maternal sepsis response should begin with an immediate senior assessment, reliable intravenous access, oxygen when clinically required, blood sampling and appropriate antimicrobial therapy. Fluid resuscitation must be individualised, with attention to pulmonary oedema, cardiac disease, pre-eclampsia and renal impairment. Persistent shock requires early critical care involvement and consideration of vasopressors.

Antimicrobial selection should reflect the likely source, local resistance patterns, allergies, pregnancy or breastfeeding status and recent antibiotic exposure. Hospital guidelines and an infectious diseases or microbiology consultation can help select an effective regimen. Treatment should be reviewed when culture results and imaging clarify the diagnosis, with narrowing or changing therapy where appropriate.

Source control cannot be postponed. This may require drainage of an abscess, removal of infected material, treatment of retained products, management of a caesarean wound, or urgent surgery for an abdominal or pelvic infection. An obstetrician should coordinate decisions with anaesthesia, surgery, intensive care and the woman, explaining benefits, risks and alternatives as clearly as possible.

Documentation should show the time sepsis was recognised, the clinician contacted, samples collected, antimicrobials commenced, fluids given, response observed and transfer decisions made. A structured handover such as ISBAR helps teams share the clinical story without burying urgent information in a long progress note.

Multidisciplinary Roles That Make A Difference

Midwives and nurses often identify the first change in condition because they are closest to the woman. They can repeat observations, initiate escalation, obtain a focused history, support venous access and communicate changes directly. Their observations should be treated as clinical evidence, not as routine paperwork.

Obstetricians assess the pregnancy, birth-related causes and need for source control. Emergency clinicians may lead initial resuscitation, while anaesthetists manage airway, ventilation, invasive monitoring and haemodynamic support. Pharmacists check dosing, interactions, allergies and antimicrobial timing. Microbiology and infectious diseases specialists assist with cultures, resistant organisms and complex infections.

The neonatal team should be involved early where fetal compromise, preterm birth or maternal critical illness is possible. Social workers, Aboriginal and Torres Strait Islander health professionals, interpreters and consumer advocates can help create care that is culturally safe and understandable. Consent, privacy and family involvement remain important during urgent treatment.

In Australia, a metropolitan hospital may activate a rapid response team within minutes, while a remote service may need to stabilise a patient until the Royal Flying Doctor Service or another retrieval provider arrives. Telehealth consultation, clear medication protocols and pre-arranged transfer pathways can reduce the disadvantage created by geography.

Source Control, Cultures And Ongoing Review

Investigations should be purposeful. Blood cultures, urine culture, vaginal or wound samples, chest imaging and pelvic ultrasound may help identify the source, depending on symptoms and stability. Imaging decisions during pregnancy should balance radiation exposure against the risk of missing a life-threatening diagnosis; necessary imaging should not be withheld when it is clinically justified.

Postpartum uterine infection can present with fever, pelvic pain, uterine tenderness, offensive lochia or unexplained tachycardia. Wound infection may be subtle, while urinary infection can progress rapidly to pyelonephritis and bacteraemia. Invasive group A streptococcal disease deserves particular vigilance because deterioration can be abrupt and pain may be severe or disproportionate.

Neonatal and maternal infections can intersect, especially after prolonged rupture of membranes, intra-amniotic infection or birth in the context of maternal bacteraemia. Teams should communicate antibiotic exposure, culture results, suspected organisms and timing of birth to neonatal clinicians. Broader perinatal learning can be found in this resource on neonatal candidiasis risk factors, which illustrates why risk assessment and coordinated follow-up matter.

After initial treatment, clinicians should reassess whether the woman is improving, stable or worsening. Failure to respond may indicate inadequate source control, resistant infection, a wrong diagnosis, fluid overload, thromboembolism, haemorrhage or another obstetric emergency. This is a reason for renewed senior review, not simply another dose of medication.

Rural, Remote And Culturally Safe Practice

The Australian healthcare system includes major referral centres, regional maternity hospitals and small multipurpose services. A woman in the Kimberley, far north Queensland or inland New South Wales may face a long road or air transfer. Clinicians should begin treatment locally, consult the receiving service early, send relevant records and anticipate blood, oxygen, analgesia, warming and monitoring needs during transport.

Communication should be direct and respectful. Avoid unexplained acronyms, check understanding, and arrange a qualified interpreter when needed. For Aboriginal and Torres Strait Islander women, culturally safe care includes listening to preferences, involving Aboriginal health workers where available, supporting family and chosen community connections, and recognising that previous experiences of healthcare may affect trust.

The partner or support person can help describe the timeline and changes in behaviour, provided the woman agrees. They should receive honest updates about what is known, what is being investigated and why urgent decisions may be necessary. In a frightening emergency, calm explanations are part of clinical care.

Resources for education and professional discussion remain valuable across settings. The FAOPS 2020 congress site records a regional scientific meeting focused on perinatal and neonatal medicine, a useful reminder that shared learning across Asia and Oceania strengthens local practice even when services operate under very different conditions.

Building A Reliable Sepsis Pathway

Hospitals should maintain a maternity-specific sepsis guideline that covers screening, escalation, antimicrobial choices, blood cultures, fluid therapy, source control, intensive care referral and transfer. It should be easy to find at the bedside and reviewed against current Australian guidance, local antibiograms and medication availability. Staff need to know who can activate the response at any time.

Simulation training can test the pathway under realistic conditions: a postpartum woman with escalating tachycardia, a labouring patient with suspected intra-amniotic infection, or a rural patient awaiting retrieval. Debriefing should examine delays, communication, equipment, prescribing, cultural safety and whether the woman and family understood the plan.

Useful recommendations for services include:

• Use maternity-adjusted observations and escalate clinical concern even when a formal score is low.
• Keep first-line antimicrobials, blood culture supplies and emergency equipment immediately accessible.
• Assign a team leader and clarify responsibilities during every sepsis response.
• Build retrieval and telehealth contacts into the protocol for rural and remote facilities.
• Audit time to recognition, cultures, antimicrobials, senior review, source control and clinical improvement.

Audits should focus on learning rather than blame. Review missed warning signs, delays in antibiotic administration, unplanned intensive care admissions and maternal or neonatal outcomes. Include feedback from women and families, because respectful communication and culturally safe care are essential measures of quality.

Maternal sepsis requires vigilance before, during and after birth. By combining early recognition, prompt treatment, source control, skilled teamwork and reliable escalation pathways, Australian maternity services can reduce avoidable harm. Use local protocols in practice, rehearse the response with the whole team, and ensure every clinician knows how to call for help when a mother begins to deteriorate.