"The data has shown for some time that some elderly people who undergo surgery, especially heart surgery, can develop cognitive dysfunction, which can mean memory loss, and a loss of focus but it isn't clear how much of that is short-term, and how much long-term," the Telegraph quoted Dr Daqing Ma, the lead investigator on the research, as saying.
"Some people go on develop dementia, which can damage lives and mean an early death, but we don't know if there is a link with the cognitive dysfunction suffered post-surgery," Ma added.
The research is due to be published in the journal Critical Care Medicine next month.
Source-ANI