Intraventricular haemorrhage (IVH) — the differential the jury was not systematically walked through
Prosecution claim
Sudden deteriorations and collapses in several indicted cases were presented as clinically inexplicable on natural-cause grounds and therefore consistent with deliberate harm. Intraventricular haemorrhage (IVH) was not a structurally central differential in the Crown's narrative for most counts.
Counter-evidence
IVH is one of the three most common causes of unexpected collapse and sudden deterioration in extremely preterm infants, alongside necrotising enterocolitis and sepsis. Grades are standardised under the Papile classification (I–IV). Grade III and IV IVH in infants of 24-28 weeks can produce acute cardiovascular instability, apnoea, bradycardia, desaturation, and sudden death — the exact clinical presentations described at trial. Baseline incidence is substantial: in the UK, Grade III-IV IVH occurs in approximately 10-15% of infants born below 28 weeks. The Panel's case-by-case review repeatedly identifies IVH as a live, unexcluded differential, particularly in Children C, G, I, M, and Q. The point is not that every indicted collapse was IVH-caused — it is that the differential was not systematically excluded, and a differential that is not excluded cannot support a deliberate-harm criminal finding.
At 24-28 weeks gestation, sudden collapse is most often the bleed you didn't see. IVH is not an exotic differential. It is the baseline differential.
What the jury heard
The jury heard clinical records that documented the deteriorations but was not systematically walked through the full differential-diagnosis framework for acute neonatal collapse. The natural-cause alternatives presented at trial tended to cluster on sepsis and NEC; IVH as a structurally coequal differential was not central.
What the Panel says
The Panel's case-by-case review repeatedly identifies IVH (with or without associated periventricular leukomalacia) as a live differential that the clinical record does not exclude. The Panel's broader methodological point is that acute collapse in very preterm infants has well-characterised natural-cause differentials that must be systematically excluded before a deliberate-harm hypothesis is entertained.
What independent experts add
- The Papile I-IV grading system is the standard UK classification and is taught in every UK neonatal training curriculum.
- Grade III-IV IVH can present clinically identically to the 'unexplained sudden collapse' described at trial.
- Cranial ultrasound is the routine UK NICU screening tool for IVH; post-mortem imaging in the indicted cases does not show the pattern air embolism would produce but can be consistent with IVH in some cases.
- Periventricular leukomalacia (PVL) is a frequent long-term complication of Grade III-IV IVH and is documented in the clinical record of several indicted infants with surviving disability.
- IVH incidence is gestation-dependent: 20-25% at 24 weeks, dropping to under 5% at 30+ weeks. Several indicted infants were in the high-risk range.
- The failure to systematically exclude IVH is one of the Panel's methodological criticisms of the original expert-witness approach, not a one-off.