{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T04:50:27Z","timestamp":1775451027779,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T00:00:00Z","timestamp":1769472000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T00:00:00Z","timestamp":1769472000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. pediatr. gastroenterol. nutr."],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To assess the use of ultrasound (US) to visualize and determine the correct position of a multichannel intraluminal impedance\u2010pH probe (MII\u2010pH).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This is a monocenter study recruiting newborns who underwent MII\u2010pH for suspicious of gastroesopahegal reflux (GER). Catheter position was based on US and was confirmed by X\u2010ray. Moreover, the depth of the probe was compared with those calculated with several mathematical formula used for pH impedance. The US was performed using (US) system Alpinion\u2010eCube\u2010i7\u00ae in B\u2010mode with linear and convex probe. US was used to evaluate the correct positioning of the MII\u2010pH catheter before the beginning and during the MII\u2010pH execution to evaluate any changes of the position. The results were also compared with retrospective cases collected in our center in previous years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Thirty\u2010six newborns were included. US allowed to visualize the esophageal probe in all the newborn tested. US\u2010based positioning was correct in 100% of patients considering an error acceptance of 1\u2009cm, and 66.7% with an error acceptance of 0.5\u2009cm, compared to X\u2010ray. The median duration of the US was 3.2\u2009min (range 2.5\u20135.78\u2009min), with prolonged time in crying babies. Previous cohort consisted of 35 newborns who underwent MII\u2010pH: one patient had the probe in the respiratory tract and six patients needed new positioning of the MII\u2010pH probe and second X\u2010ray control because of bad positioning or accidental removal of the probe.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>US seems to be a valid alternative for the assessment of the MII\u2010pH probe position and the identification of the pH sensor and the lower esophageal sphincter in real time. However, US expertise is needed to provide accurate results.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jpn3.70350","type":"journal-article","created":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T10:31:22Z","timestamp":1769509882000},"page":"963-970","source":"Crossref","is-referenced-by-count":0,"title":["Ultrasonography for the positioning of esophageal multichannel intraluminal impedance\/pH\u2010metry catheter in newborns"],"prefix":"10.1002","volume":"82","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-0949-2251","authenticated-orcid":false,"given":"Dario","family":"Ummarino","sequence":"first","affiliation":[{"name":"Department of Neonatal Intensive Care Unit of the Hospital San Leonardo Castellammare Di Stabia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francesca","family":"Cinelli","sequence":"additional","affiliation":[{"name":"UNICAMILLUS International Medical University in Rome Rome Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmine","family":"De Angelis","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Naples \u201cFederico II\u201d Naples Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincenzo","family":"Ciunfrini","sequence":"additional","affiliation":[{"name":"Department of Pediatrics University of Naples \u201cFederico II\u201d Naples Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonietta","family":"D'Aniello","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care Unit of the Hospital San Leonardo Castellammare Di Stabia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sara","family":"Alfano","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care Unit of the Hospital San Leonardo Castellammare Di Stabia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Giuseppa","family":"Scala","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care Unit of the Hospital San Leonardo Castellammare Di Stabia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angelina","family":"Grammegna","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Hospital De Luca e Rossano Vico Equense Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Cinelli","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care Unit of the Hospital San Leonardo Castellammare Di Stabia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rosanna","family":"Pluvio","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Hospital Santa Maria delle Grazie Pozzuoli Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silvia","family":"Salvatore","sequence":"additional","affiliation":[{"name":"Pediatric Department, Hospital \u201cF. Del Ponte University of Insubria Varese Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,1,27]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/MPG.0000000000001889"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-230X-14-64"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/MPG.0b013e3182592b65"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(79)80361-3"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/MPG.0b013e3182952e50"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1001\/archpedi.1991.02160120092025"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/MPG.0000000000000723"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/nmo.12547"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/dote\/doz014"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2023.113449"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(99)70179-4"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dld.2019.07.016"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pedneo.2020.10.009"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.60.1.65"},{"key":"e_1_2_7_16_1","unstructured":"World Health Organization. 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