‘As a treatment, it is remarkably successful. Perhaps the greatest tribute to the people who work in critical care is this simple fact: most people leave intensive care alive – despite being dangerously close to death when they arrive. Through a combination of dedication, decision-making and technology, critical care staff ensure that most people pull through. This is the result of years of careful research that has focused clinical practice on restoring the body\’s functioning as quickly and efficiently as possible.
But recently there has been a dawning realisation that the impact of intensive care extends beyond the survival of the body. Dorothy Wade is based at University College Hospital in London and is one of the country’s few intensive care psychologists. She led a recent study which found that more than half of patients assessed at follow-up had marked psychological difficulties. “We learned that patients were suffering from serious depression or having frightening flashbacks and nightmares to their time in intensive care,” says Wade. “This badly affected their quality of life and also held back their physical recovery from their illness.”
In another study, recently submitted for publication, Wade interviewed patients about the hallucinations and delusions they experienced while in intensive care. One patient reported seeing puffins jumping out of the curtains firing blood from guns, another began to believe that the nurses were being paid to kill patients and zombify them. The descriptions seem faintly amusing at a distance, but both were terrifying at the time and led to distressing intrusive memories long after the patients had realised their experiences were illusory.
Many patients don’t mention these experiences while in hospital, either through fear of sounding mad, or through an inability to speak – often because of medical breathing aids, or because of fears generated by the delusions themselves. After all, who would you talk to in a zombie factory?
These experiences can be caused by the effect of serious illness on the brain, but painkilling and sedating drugs play a part and are now used only where there is no alternative. Stress also adds to the mix but is often caused inadvertently by the way intensive care wards are organised. “If you think about the sort of things used for torture,” says Hugh Montgomery, a professor of intensive care medicine at UCL, “you will experience most of them in intensive care. As a patient, you are often naked and exposed, you hear alarming noises at random times, your sleep-wake cycle is disrupted by being woken up for medical procedures through the night, you will be given drugs that could disorient you, and you will be regularly exposed to discomfort and feelings of threat.” — Vaughan Bell (The Observer).
