{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T06:29:53Z","timestamp":1791268193423,"version":"4.1.0"},"reference-count":22,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2012,6,20]],"date-time":"2012-06-20T00:00:00Z","timestamp":1340150400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neurogastroenterology Motil"],"published-print":{"date-parts":[[2012,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Background\u2002<\/jats:bold> Few data are available comparing intragastric pH measured with the traditional catheter\u2010based and the more recent wireless system (Bravo), and also comparing intraesophageal and intragastric pH during reflux events. Aims of our study were to elucidate these points.<\/jats:p><jats:p><jats:bold>Methods\u2002<\/jats:bold> Eleven subjects with functional dyspepsia underwent placement of a Bravo capsule 9\u2003cm below the squamo\u2010columnar junction (SCJ) and of a dual\u2010electrode catheter, so that the distal electrode was located 9\u2003cm below and the proximal one 6\u2003cm above the SCJ.<\/jats:p><jats:p><jats:bold>Key Results\u2002<\/jats:bold> The wireless system showed lower intragastric pH than the traditional catheter in the postprandial period (median 2.2 wireless <jats:italic>vs<\/jats:italic> 2.7 catheter, <jats:italic>P\u2003<\/jats:italic>&lt;\u20030.05) but not in the whole 24\u2003h. Moreover, during the 24\u2003h, minimum intraesophageal pH during reflux events was lower than the simultaneous pH in the gastric body recorded using the catheter (2.2 <jats:italic>vs<\/jats:italic> 2.4, <jats:italic>P\u2003<\/jats:italic>&lt;\u20030.01) and in the postprandial period lower than the one recorded using both techniques (2.3 <jats:italic>vs<\/jats:italic> 2.8 wireless and 3.2 catheter, <jats:italic>P\u2003<\/jats:italic>&lt;\u20030.001).<\/jats:p><jats:p><jats:bold>Conclusions &amp; Inferences\u2002<\/jats:bold> (i) after meals, in the 1st 2 h postprandial pH in the gastric body is significantly lower when measured with the wireless capsule than with the traditional catheter, presumably because of less buffering by food in proximity of the mucosa, (ii) during reflux events intraesophageal pH is lower than pH in the gastric body, in accordance with the notion of greater intragastric acidity in the subcardial region.<\/jats:p>","DOI":"10.1111\/j.1365-2982.2012.01957.x","type":"journal-article","created":{"date-parts":[[2012,6,20]],"date-time":"2012-06-20T12:38:23Z","timestamp":1340195903000},"page":"951","source":"Crossref","is-referenced-by-count":8,"title":["Traditional <i>vs<\/i> wireless intragastric pH monitoring: are the two techniques comparable?"],"prefix":"10.1111","volume":"24","author":[{"given":"C.","family":"Caparello","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I.","family":"Bravi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Cant\u00f9","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Grigolon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Tenca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Mauro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"Penagini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,6,20]]},"reference":[{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/0016-5085(85)90572-4"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.gastro.2003.10.045"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1136\/gut.30.5.573"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1053\/gast.2001.27997"},{"key":"e_1_2_9_6_2","first-page":"A395","article-title":"The acid pocket revisited with wireless pH monitoring","volume":"130","author":"Penagini R","year":"2006","journal-title":"Gastroenterology"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.gastro.2005.11.061"},{"key":"e_1_2_9_8_2","first-page":"477","article-title":"Ambulatory 24\u2010hour oesophageal pH monitoring in normal subjects: a multicentre study in Italy. 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