The amnesia usually lasts a few hours, with full recovery and rare recurrence. Shedding more light on the "other" reasons that may trigger TGA, neurologist Rajas Deshpande said, "TGA can occur following minor trauma, exertion or emotional stress. Among those 50 years and older, it is 23.5 to 32 per one lakh per year," said Kothari. Worldwide, the incidence of transient global amnesia (TGA), in the general population, has been estimated as 5.2 to 10 per one lakh person per year. "It must be noted that TGA does not cause any permanent damage to cognitive abilities of those affected. Then it was thought to be a result of transient cerebral ischemia (reduction of blood flow to the brain)," he said, adding, sometimes TGA can kick-in due to an epileptic discharge and in that case it is called transient epileptic amnesia." People with transient epileptic amnesia suffer more frequent attacks of temporary memory loss and may sooner or later show other symptoms of epilepsy. It may happen once or may recur once in a few years." Kothari said the underlying cause of TGA is unclear. But the patient recovers on his own within 24 hours. Many patients become anxious and may repeatedly ask the same question. When a TGA attack sets in, the affected person remains alert and communicative with no disturbance in his or her knowledge of personal identity. Speaking to TOI, neurologist Sudhir Kothari said, "As the name implies, transient global amnesia is transient (temporary). Dishti's case is not the one in isolation, doctors warn that this little-known phenomenon of TGA is more often seen in middle-aged or old people. Dishti was later diagnosed with transient global amnesia (TGA) a sudden and temporary loss of memory, which does not last for over 24 hours. He only has vague and patchy memories of the intervening period.
However, what Dishti did between 9 am and 4 pm remains a mystery to him, has no recollections of what he did in that period. He went about his morning routine with ease ate breakfast, wore clothes and drove his car to work.
PUNE: The other day, when 50-year-old Akhilesh Dishti went to the bathroom at 9 am in the morning, he felt, and looked, fit as a fiddle.
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