<p>According to study published in the journal Anaesthesia, Surgery and Anaesthesia may result with abnormal memory. While studying scientist worked with 312 participants who had surgery and 652 participants without surgery with an age group of 50s, surgery between tests was associated with a decline in immediate memory by one point out of a possible maximum test score of 30 points. </p>rnrn<p>Memory became abnormal in 77 out of 670 participants with initially normal memory comprising 18 percent of those who had had surgery compared with 10 percent of those who had not.</p>rnrn<p>No differences in other measures of memory and executive function were observed between participants having and not having surgery. </p>rnrn<blockquote><p>"The cognitive changes we report are highly statistically significant in view of the internal normative standards we employ, and the large sample size of the control, or non-surgery, population. But the cognitive changes after surgery are small--most probably asymptomatic and beneath a person&#039;s awareness&rdquo;. </p></blockquote>rnrn<p>According to senior author of the study,Dr Kirk Hogan, "The cognitive changes we report are highly statistically significant in view of the internal normative standards we employ, and the large sample size of the control, or non-surgery, population. But the cognitive changes after surgery are small--most probably asymptomatic and beneath a person&#039;s awareness".</p>rnrn<p>"The results await confirmation both in follow-up investigations in our own population sample after more surgeries in ageing participants, and by other investigators with other population samples", Dr Hogan further explained.</p>rnrn<p>Dr Hogan noted that it is too early to recommend any changes in clinical practice regarding prevention, diagnosis, management, and prognosis of cognitive changes after surgery.</p>rnrn<p>Story source and credit: ANI</p>