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    The impact of the speed of food intake on gastroesophageal reflux events in obese female patients
    (Wiley, 2017) Bor, Serhat; Erdogan, Askin; Bayrakci, Berna; Yildirim, Esra; Vardar, Rukiye
    Obesity increases the risk of gastroesophageal reflux disease (GERD). The majority of the reflux attacks occur postprandially. The influence of the speed of food intake on gastroesophageal reflux events is unclear in obese patients. To determine the influence of the speed of food intake on intraesophageal reflux events in obese patients with and without GERD. A total of 26 obese female patients were recruited. The patients underwent esophageal manometry to evaluate the upper limit of the lower esophageal sphincter and subsequently placement of a Multichannel intraluminal impedance-pH (MII-pH) catheter. All patients were asked to eat the same standard meal (double cheeseburger, 1 banana, 100 g yogurt and 200 mL water; total energy value, 744 kcal; 37.6% carbohydrates, 21.2% proteins and 41.2% lipids) within 5 or 30 minutes under observation in a random order on two consecutive days. All reflux episodes over a 3-hour postprandial period were manually analyzed and compared. The mean age was 46 +/- 12 (18-66) years. The mean body mass index (BMI) was 39.9 +/- 8.4 kg/m(2). There was no difference between the fast- and slow-eating group in the number of refluxes within the 3-postprandial hours. The patients were divided into 2 groups according to the 24-hour MII-pH monitoring results, that is, 16 subjects with normal MII-pH monitoring and 10 patients with pathologic MII-pH monitoring. There was no effect of the speed of food intake in either the patients with or without GERD. In contrast to the general belief, this study suggested that the speed of food intake does not influence the number of refluxes in obese female patients with or without GERD.
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    The influence of the speed of food intake on multichannel impedance in patients with gastro-oesophageal reflux disease
    (Sage Publications Inc, 2013) Bor, Serhat; Bayrakci, Berna; Erdogan, Askin; Yildirim, Esra; Vardar, Rukiye
    Background: There is a general belief that gastro-oesophageal reflux increases after meals and especially following a rapid intake. Objective: To evaluate the impact of rapid vs. slow food intake on gastro-oesophageal reflux disease (GORD) patients. Materials and methods: Forty-six GORD patients with heartburn and / or acid regurgitation once a week or more often common were included in this study. Participants were asked to eat the same standard meal within either 5 or 30 minutes under observation in a random order on 2 consecutive days. A total of 28 hours of recording were obtained by intraoesophageal impedance pH and number of liquid and mixed reflux episodes within 3 hours of the slow- and fast-eating postprandial periods were calculated. Results: While all patients defined GORD symptoms, 10 (21.7%) had pathological 24-h intraoesophageal impedance measurement, 15 (32.6%) had pathological DeMeester and 21.7% had erosive oesophagitis. No difference has been shown according to the eating speed when all reflux episodes were taken together (754 vs. 733). Speed of food intake also did not have an impact on patients with normal vs. pathological 24-h intraoesophageal impedance or erosive vs. non-erosive. During the first postprandial hour, approximately half of the reflux events were non-acid, compared to 34.2% during the second hour and 26.8% during the third hour (p < 0.001). The number of acid reflux episodes was significantly higher than non-acid reflux especially during the second and third hours and in total for 3 hours. Conclusions: This first study addressing the effect of eating speed on reflux episodes in GORD patients did not support the general belief that reflux increases following fast eating. Acid and non-acid reflux were similar at the first postprandial hour, then acid reflux episodes were predominantly higher, which implicate the importance of acid pockets.