Abstract：
BACKGROUND:Neither hormone levels nor malabsorption alone fully explains the distinct weight loss after bariatric surgery in morbidly obese patients. Postoperatively, patients regularly report a change in the sense of taste and the development of food aversions. Hedonic and sensory components like olfactory and gustatory stimuli significantly affect appetite and flavour. METHODS:We prospectively analysed the orthonasal olfactory and gustatory function with psychophysical testing in 44 patients undergoing laparoscopic Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy (SG) or adjustable gastric banding (AGB) and in 23 healthy controls. RESULTS:About 22.7 % of morbidly obese patients were hyposmic, showing significantly lower threshold-discrimination-identification (TDI) scores (p = 0.009) with decreased discrimination and identification ability. In addition, 22.7 % of patients were tested to be limited in gustatory function, with significantly lower taste strip test (TST) scores (p = 0.003). Six months after surgery, olfactory and gustatory function was not different when compared to healthy controls. CONCLUSIONS:Due to obesity, patients frequently show impaired olfactory and gustatory function. Six months after laparoscopic bariatric surgery, both chemosensory functions improve. The TDI test is an appropriate tool to measure olfactory function in obese patients.
journal_name
Obes Surgjournal_title
Obesity surgeryauthors
Holinski F,Menenakos C,Haber G,Olze H,Ordemann Jdoi
10.1007/s11695-015-1683-xsubject
Has Abstractpub_date
2015-12-01 00:00:00pages
2314-20issue
12eissn
0960-8923issn
1708-0428pii
10.1007/s11695-015-1683-xjournal_volume
25pub_type
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