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RISS 인기검색어
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- 저자 : ( Philip Woodland ) (검색결과 3 건)
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( Philip Woodland ),( Shirley Gabieta-sonmez ),( Julieta Arguero ),( Joanne Ooi ),( Kenichiro Nakagawa ),( Esteban Glasinovic ),( Etsuro Yazaki ),( Daniel Sifrim ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2018 Journal of Neurogastroenterology and Motility (JNM Vol.24 No.3
Background/Aims Single swallow integrated relaxation pressure (IRP) on high-resolution manometry (HRM) does not always accurately predict esophagogastric outflow obstruction on timed barium esophagogram (TBE). Furthermore, neither single swallow IRP or TBE is reliable in predicting symptoms, particularly after treatment with dilatation or myotomy. A 200 mL rapid drink challenge (RDC) has been proposed as an adjunctive test during HRM. This serves as a “stress-test” to the esophagogastric junction, and may yield clinically useful parameters. We aim to assess HRM parameters during RDC, and their ability to predict outflow obstruction on TBE in patients with dysphagia, and to correlate with symptoms in patients’ achalasia. Methods Thirty patients with dysphagia were recruited. All underwent standard single swallow HRM analysis, 200 mL RDC, then TBE. RDC parameters, including esophagogastric pressure gradient, IRP, and RDC duration were evaluated. Multiple regression analysis was performed to assess the best predictive parameter for obstruction on TBE. A further 21 patients with achalasia were evaluated with Eckhardt score, single swallow HRM, RDC, and TBE. Parameter correlation with Eckhardt score was evaluated. Results Mean IRP during RDC was the best HRM parameter at predicting outflow obstruction on TBE. This performed much better in untreated patients (sensitivity 100% and specificity 85.5%) than in previously treated patients (sensitivity 50% and specificity 66%). In patients with achalasia, mean IRP during RDC was the only parameter that correlated with symptom score. Conclusion Mean IRP during RDC appears to be a clinically useful “stress test” to the esophagogastric junction during HRM. (J Neurogastroenterol Motil 2018;24:410-414)
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( Nikolaos Koukias ),( Philip Woodland ),( Etsuro Yazaki ),( Daniel Sifrim ) 대한소화기기능성질환·운동학회 2015 Journal of Neurogastroenterology and Motility (JNM Vol.21 No.3
Background/Aims: Supragastric belching (SGB) is a phenomenon during which air is sucked into the esophagus and then rapidly expelled through the mouth. Patients often complain of severely impaired quality of life. Our objective was to establish the prevalence of excessive SGB within a high-volume gastrointestinal physiology unit, and evaluate its association with symptoms, esophageal motility and gastresophageal reflux disease. Methods: We established normal values for SGB by analyzing 24-hour pH-impedance in 40 healthy asymptomatic volunteers. We searched 2950 consecutive patient reports from our upper GI Physiology Unit (from 2010-2013) for SGB. Symptoms were recorded by a standardized questionnaire evaluating for reflux, dysphagia, and dyspepsia symptoms. We reviewed the predom - inant symptoms, 24-hour pH-impedance and high-resolution esophageal manometry results. Results: Excessive SGB was defined as > 13 per 24 hours. We identified 100 patients with excessive SGB. Ninety-five percent of these patients suffered from typical reflux symptoms, 86% reported excessive belching, and 65% reported dysphagia. Forty-one percent of patients with excessive SGB had pathological acid reflux. Compared to the patients with normal acid exposure these patients trended towards a higher number of SGB episodes. Forty-four percent of patients had esophageal hypomotility. Patients with hypomotility had a significantly higher frequency of SGB compared to those with normal motility (118.3 ± 106.1 vs 80.6 ± 75.7, P = 0.020). Conclusions: Increased belching is rarely a symptom in isolation. Pathological acid exposure and hypomotility are associated with more SGB frequency. Whether SGB is a disordered response to other esophageal symptoms or their cause is unclear. (J Neurogastroenterol Motil 2015;21:398-403)
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Measurement of Esophageal Nocturnal Baseline Impedance: A Simplified Method
( Yoshimasa Hoshikawa ),( Akinari Sawada ),( Shirley Sonmez ),( Kornilia Nikaki ),( Philip Woodland ),( Etsuro Yazaki ),( Daniel Sifrim ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2020 Journal of Neurogastroenterology and Motility (JNM Vol.26 No.2
Background/Aims Mean nocturnal baseline impedance (MNBI) during multichannel intraluminal impedance pH-monitoring (MII-pH) reflects the status of esophageal mucosal integrity. MNBI is suggested as an adjunctive method to distinguish patients with true gastroesophageal reflux disease (GERD) from functional heartburn (FH) and might predict outcomes for anti-reflux treatment. However, current methodology for calculation of MNBI is time-consuming and subject to operator-dependent selection bias. We aim to simplify and provide a more objective method to calculate MNBI. Methods We retrospectively analyzed 100 MII-pH tracings from 20 patients with erosive reflux disease, 20 with non-erosive reflux disease (NERD), 20 with reflux hypersensitivity, 20 with functional heartburn (FH), and 20 healthy asymptomatic volunteers. We compared the current “conventional” MNBI analysis with our “simple” MNBI analysis measured by selecting the whole supine period using the impedance average calculation function in the MII-pH software. Results Absolute values were very similar and there was a strong correlation between conventional and simple MNBI values in the most distal channel in all groups (r ≥ 0.8, P < 0.001) including patients with increased supine acid reflux. Distal esophageal simple MNBI negatively correlated with acid exposure time (r = -0.695, P < 0.001). Patients with erosive reflux disease and NERD had lower simple MNBI values in the most distal channel compared to other groups (P < 0.001). With a cutoff value of 1785 ohms, simple MNBI can discriminate patients with GERD from those with reflux hypersensitivity and FH (sensitivity 80.0% and specificity 89.7%). Conclusion Simple MNBI analysis provides very similar values and has an excellent correlation with conventional MNBI analysis. (J Neurogastroenterol Motil 2020;26:241-247)
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