ArticleObesity surgery2015
Olfactory and Gustatory Function After Bariatric Surgery.
Article in Obesity surgery, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
36 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.
- Obesity, Olfaction and Cognition: A Systematic Review.Current obesity reports · 2025Pooled it
- Taste Changes after Bariatric Surgery: a Systematic Review.Obesity surgery · 2018Pooled it
- Tripeptide gut hormone infusion does not alter food preferences or sweet taste function in volunteers with obesity and prediabetes/diabetes but promotes restraint eating: A secondary analysis of a randomized single-blind placebo-controlled study.Diabetes, obesity & metabolism · 2023Trial
- Trial
- Weight Loss, Dietary Preferences, and Reduction in the Sense of Smell with the Use of a Novel Nasal Device.Obesity facts · 2020Trial
- Gross Olfaction Before and After Laparoscopic Gastric Bypass.Obesity surgery · 2017Trial
- Olfactory dysfunction in obesity and type 2 diabetes: mechanistic insights from preclinical models.Diabetologia · 2026Review
- 8-Year Outcomes After Sleeve Gastrectomy: Anthropometric, Biochemical, and Nutritional Evaluation.Obesity surgery · 2026Observational
- Impact of Weight Loss on Olfaction in Patients Undergoing Bariatric Surgery.Obesity surgery · 2024Article
- The Role of the Olfactory System in Obesity and Metabolism in Humans: A Systematic Review and Meta-Analysis.Metabolites · 2023Review
- Article
- Changes in hedonic hunger and food reward after a similar weight loss induced by a very low-energy diet or bariatric surgery.Obesity (Silver Spring, Md.) · 2022Article
- Changes in appetite, taste, smell, and food aversion in post-bariatric patients and their relations with surgery time, weight loss and regain.Eating and weight disorders : EWD · 2022Article
- Changes in Food Choice, Taste, Desire, and Enjoyment 1 Year after Sleeve Gastrectomy: A Prospective Study.Nutrients · 2022Article
- International consensus statement on allergy and rhinology: Olfaction.International forum of allergy & rhinology · 2022Review
- Effect of Obesity Surgery on Taste.Nutrients · 2022Review
- Review
- Not Only COVID-19: Involvement of Multiple Chemosensory Systems in Human Diseases.Frontiers in neural circuits · 2022Review
- Enhanced sweet taste perception in obesity: Joint analysis of gustatory data from multiple studies.Frontiers in nutrition · 2022Article
- Sweet taste and obesity.European journal of internal medicine · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNeither 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.
methodsWe 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.
resultsAbout 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.
conclusionsDue 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.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.