Premature Rupture of Membranes

Premature rupture of membranes refers to the breaking of the amniotic sac before the onset of labour, and preterm premature rupture refers to that occurring before term. It raises a recognized set of risks, including infection (chorioamnionitis), cord prolapse, placental abruption, and the consequences of prematurity if delivery follows, all of which require careful monitoring and management.

Allegations in this area commonly concern failure to diagnose rupture, failure to monitor for and recognize developing infection, inadequate management of the timing of delivery against the competing risks of prematurity and infection, and failure to administer indicated treatment. The standard of care is established through obstetric, maternal-fetal medicine, and nursing expert evidence, calibrated to gestational age and the clinical picture, and causation turns on what difference appropriate management would have made to the maternal or neonatal outcome.

Posts tagged Premature Rupture of Membranes analyze Ontario and other Canadian decisions involving the monitoring and management of ruptured membranes and the resulting maternal and neonatal harm.

Ibrahimova v Cavanagh: The Court of Appeal Upholds a Causation Finding Built on Inference

The Court of Appeal for Ontario dismisses Dr. Cavanagh’s causation appeal in Ibrahimova v Cavanagh, upholding findings about what would have happened at a tertiary hospital the patient never reached on the relevant day. The decision confirms that a plaintiff can prove a counterfactual treatment path through a specialist from the receiving discipline, without institutional witnesses, and that a defendant who calls no expert in that specialty is unlikely to recast the resulting findings as speculation.

August 8, 2026

Case comment on Ibrahimova v Cavanagh, 2025 ONSC 4808 (Ontario Superior Court of Justice), plaintiff trial win for 17-week pregnant patient with catastrophic outcome (below-knee amputation, partial foot amputation, kidney transplant, stroke, seizures) after emergency physician failed to refer her to obstetrician on documented possible preterm premature rupture of membranes. By Paul Cahill, LSO Certified Specialist in Civil Litigation.

Ibrahimova v Cavanagh: Missed pPROM, the Novel Presentation Referral Framework, and Catastrophic Outcomes

Ontario court finds emergency physician negligent for failing to refer 17-week pregnant patient with pPROM to obstetrician, leading to septic shock and amputations.

October 3, 2025

Case comment on Ibrahimova v Cavanagh, 2025 ONSC 1152 (Ontario Superior Court of Justice), motion decision denying defendant physicians' request for production of in-home security camera recordings in a catastrophic injury malpractice action arising from missed previable PROM and septic pregnancy loss. On the privacy versus relevance framework in civil discovery and the Stewart v Kempster line. By Paul Cahill, LSO Certified Specialist in Civil Litigation.

Ibrahimova v Cavanagh: In-Home Recordings, Privacy, and the Limits of Defence Discovery

Ontario court denies defendant doctors’ motion for in-home security camera recordings in catastrophic injury malpractice action. Privacy prevails over relevance.

April 17, 2025

Premature Rupture of Membranes

Ibrahimova v Cavanagh: The Court of Appeal Upholds a Causation Finding Built on Inference

Ibrahimova v Cavanagh: Missed pPROM, the Novel Presentation Referral Framework, and Catastrophic Outcomes

Ibrahimova v Cavanagh: In-Home Recordings, Privacy, and the Limits of Defence Discovery

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Talk to Paul directly.