My Lords, the noble Lord, Lord Ramsbotham, has raised an important issue and outlined the size of the problem. Brain injury can arise from many different causes such as violent trauma, lack of oxygen to the brain or self-medication with alcohol and drugs. Sadly, brain injury is in large part irreversible, although sometimes the brain has the ability to relearn under intense rehabilitation, which is why rehabilitation services are so important.
One can see the motivation behind the amendment, but I fear that it may be difficult to have it in the Bill. In acute head injury, haemorrhage, usually a subdural haematoma, needs to be detected rapidly and the clot removed neurosurgically. If missed, the injury may become a chronic subdural as the clot acts like a wick, drawing fluid into it so that it slowly expands in the fixed box that the skull provides.
The other main category is that of repeated impact injury, sometimes associated with episodes of concussion as classically seen in boxers, which can lead to dementia. The part of the brain that is damaged determines the
clinical signs exhibited. If the frontal lobes or some of the main nuclei of the brain are damaged, there can be profound personality and behavioural changes, while in others, speech and movement are affected. It can be very variable. Sadly, although supportive care can help a person to cope with deteriorating brain function and slow its effect, it is not reversible.
A possible difficulty with the amendment is that it requires a two-week timeframe for assessment, given that there are already waiting lists for MRI machine time for those with symptoms indicating brain pathology, such as cancers that need urgent treatment. Awareness of head injury is gained first and foremost from the patient history, followed by appropriate physical examination, after which further investigations may or may not be indicated. It is the history of the injury and the clinical signs that may indicate brain injury; the screening itself can establish only that the findings and type of injury described are, on the balance of probabilities, likely to be causally linked. This well-motivated amendment should raise awareness of head injury so that women are asked about the type of injury, including how it happened and when. A high index of suspicion of head injury is needed, but I fear that the amendment as worded would not be workable in practice.