Visual, Verbal and Everyday Memory 2 Years After Bariatric Surgery: Poorer Memory Performance at 1-Year Follow-Up
Over the past decade, increasing evidence suggests that severe obesity has adverse effects on cognitive functioning, including memory. These findings have clinical implications for bariatric surgery patients, as memory difficulties may lead to challenges in adhering to specific pre- and postoperative dietary advice and more general health regimens. In this longitudinal study, we investigated various aspects of memory in bariatric surgery patients 1- and 2-years post-surgery.
Publisert i Forskningspublikasjoner Mandag 4. oktober, 2021 - 16:39 | sist oppdatert Mandag 4. oktober, 2021 - 17:17
Forskere: Gro Walø-Syversen, Ingela Lundin-Kvalem, Jon Kristinson, Inger Eribe, Øyvind Rø, Cathrine Brunborg og Camilla Lindvall Dahlgren.
Abstract
Severe obesity has been associated with reduced performance on tests of verbal memory in bariatric surgery candidates. There is also some evidence that bariatric surgery leads to improved verbal memory, yet these findings need further elucidation. Little is known regarding postoperative memory changes in the visual domain and the subjective experience of everyday memory after surgery. The aim of the current study was to repeat and extend prior findings on postoperative memory by investigating visual, verbal, and self-reported everyday memory following surgery, and to examine whether weight loss and somatic comorbidity predict memory performance. The study was a prospective, observational study in which participants (n = 48) underwent cognitive testing before, 1 and 2 years after bariatric surgery. Results revealed significantly poorer visual and verbal memory performance at the 1-year follow-up, with performance subsequently returning to baseline levels after 2 years. The findings contrast with most previous studies warranting further investigation. Treatment providers should be aware of a potential memory decline 1 year following surgery and intervene accordingly.
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