{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T11:10:27Z","timestamp":1768907427674,"version":"3.49.0"},"reference-count":22,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/501100015401","name":"Shaanxi Province Key Research and Development Projects","doi-asserted-by":"publisher","award":["2022SF-038"],"award-info":[{"award-number":["2022SF-038"]}],"id":[{"id":"10.13039\/501100015401","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82001394"],"award-info":[{"award-number":["82001394"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Journal of Clinical Anesthesia"],"published-print":{"date-parts":[[2026,1]]},"DOI":"10.1016\/j.jclinane.2025.112081","type":"journal-article","created":{"date-parts":[[2025,11,29]],"date-time":"2025-11-29T13:17:23Z","timestamp":1764422243000},"page":"112081","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["A simplified standardized ultrasound-guided plane block for the Intercostobrachial nerve: Effective volume of 0.5\u00a0% ropivacaine determined by Dixon's up-and-down method"],"prefix":"10.1016","volume":"108","author":[{"given":"Wenchao","family":"Chen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guojun","family":"Yu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongmin","family":"Cai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cuiying","family":"Du","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liang","family":"Feng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Bian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhe","family":"Yuan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ning","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.jclinane.2025.112081_bb0005","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/S0363-5023(10)80012-7","article-title":"Anatomic course of the medial cutaneous nerves of the arm","volume":"16","author":"Race","year":"1991","journal-title":"J Hand Surgery-Am"},{"issue":"365","key":"10.1016\/j.jclinane.2025.112081_bb0010","doi-asserted-by":"crossref","DOI":"10.1016\/j.morpho.2025.100954","article-title":"Morphological variability of the intercostobrachial nerve and potential surgical significance","volume":"109","author":"Piagkou","year":"2025","journal-title":"Morphologie"},{"key":"10.1016\/j.jclinane.2025.112081_bb0015","doi-asserted-by":"crossref","first-page":"860","DOI":"10.1046\/j.1440-1622.1999.01718.x","article-title":"The anatomy of the extrathoracic intercostobrachial nerve","volume":"69","author":"O\u2019Rourke","year":"1999","journal-title":"Austr New Zealand J Surg"},{"key":"10.1016\/j.jclinane.2025.112081_bb0020","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1002\/ca.20226","article-title":"The gross anatomy of the extrathoracic course of the intercostobrachial nerve","volume":"19","author":"Loukas","year":"2006","journal-title":"Clin Anat"},{"key":"10.1016\/j.jclinane.2025.112081_bb0025","doi-asserted-by":"crossref","first-page":"1241","DOI":"10.15537\/smj.2015.10.11758","article-title":"Ultrasound imaging accurately identifies the intercostobrachial nerve","volume":"36","author":"Thallaj","year":"2015","journal-title":"Saudi Med J"},{"key":"10.1016\/j.jclinane.2025.112081_bb0030","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1007\/s00540-018-2547-z","article-title":"Randomized comparative study between two different techniques of intercostobrachial nerve block together with brachial plexus block during superficialization of arteriovenous fistula","volume":"32","author":"Moustafa","year":"2018","journal-title":"J Anesth"},{"key":"10.1016\/j.jclinane.2025.112081_bb0035","doi-asserted-by":"crossref","first-page":"555","DOI":"10.1016\/j.bjan.2016.10.009","article-title":"Axillary local anesthetic spread after the thoracic interfacial ultrasound block - a cadaveric and radiological evaluation","volume":"67","author":"Torre","year":"2017","journal-title":"Rev Bras Anestesiol"},{"key":"10.1016\/j.jclinane.2025.112081_bb0040","first-page":"832","article-title":"Ultrasound-guided selective versus conventional block of the medial brachial cutaneous and the Intercostobrachial nerves: a randomized clinical trial","volume":"43","author":"Magazzeni","year":"2018","journal-title":"Reg Anesth Pain Med"},{"key":"10.1016\/j.jclinane.2025.112081_bb0045","doi-asserted-by":"crossref","first-page":"470","DOI":"10.1016\/j.redar.2012.07.003","article-title":"Ultrasound description of pecs II (modified pecs I): a novel approach to breast surgery","volume":"59","author":"Blanco","year":"2012","journal-title":"Revista espanola de anestesiologia y reanimacion"},{"key":"10.1016\/j.jclinane.2025.112081_bb0050","first-page":"1","article-title":"Lorsomradee, S: randomized comparison between ultrasound-guided proximal and distal approaches of intercostobrachial nerve block as an adjunct to supraclavicular brachial plexus block for upper arm arteriovenous access procedures","volume":"0","author":"Samerchua","year":"2024","journal-title":"Reg Anesth Pain Med"},{"key":"10.1016\/j.jclinane.2025.112081_bb0055","doi-asserted-by":"crossref","first-page":"853","DOI":"10.1136\/rapm-2020-101783","article-title":"Cadaveric study identifying clinical sonoanatomy for proximal and distal approaches of ultrasound-guided intercostobrachial nerve block","volume":"45","author":"Samerchua","year":"2020","journal-title":"Reg Anesth Pain Med"},{"key":"10.1016\/j.jclinane.2025.112081_bb0060","first-page":"1","article-title":"Usefulness of high-resolution ultrasound for small nerve blocks: visualization of intercostobrachial and medial brachial cutaneous nerves in the axillary area","volume":"26","author":"Varela","year":"2019","journal-title":"Reg Anesth Pain Med"},{"key":"10.1016\/j.jclinane.2025.112081_bb0065","article-title":"Role of an Intercostobrachial nerve block in alleviating tourniquet pain: a randomized clinical trial","volume":"14","author":"Le-Wendling","year":"2022","journal-title":"Cureus"},{"key":"10.1016\/j.jclinane.2025.112081_bb0070","doi-asserted-by":"crossref","first-page":"144","DOI":"10.1097\/01.anes.0000267514.42592.2a","article-title":"Advances in and limitations of up-and-down methodology:a pr\u2019ecis of clinical use, study design, and dose estimation in anesthesia research","volume":"107","author":"Pace","year":"2007","journal-title":"Anesthesiology"},{"key":"10.1016\/j.jclinane.2025.112081_bb0075","doi-asserted-by":"crossref","first-page":"485","DOI":"10.2307\/2531453","article-title":"Interval estimation of the LD50 based on an up-and-down experiment","volume":"46","author":"TChoi SC.","year":"1990","journal-title":"Biometrics"},{"key":"10.1016\/j.jclinane.2025.112081_bb0080","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1097\/AAP.0000000000000629","article-title":"Minimum effective volume of lidocaine for ultrasound-guided costoclavicular block","volume":"42","author":"Sotthisopha","year":"2017","journal-title":"Reg Anesth Pain Med"},{"key":"10.1016\/j.jclinane.2025.112081_bb0085","doi-asserted-by":"crossref","first-page":"883","DOI":"10.1016\/j.bja.2018.06.006","article-title":"Ultrasound-guided anterior approach to the axillary and intercostobrachial nerves in the axillary fossa: an anatomical investigation","volume":"121","author":"Feigl","year":"2018","journal-title":"Br J Anaesth"},{"key":"10.1016\/j.jclinane.2025.112081_bb0090","first-page":"121","article-title":"Comparison of 3 ultrasound-guided brachial plexus block approaches for cubital tunnel release surgery in 120 ambulatory patients","volume":"82","author":"Roussel","year":"2014","journal-title":"AANA J"},{"key":"10.1016\/j.jclinane.2025.112081_bb0095","first-page":"134","article-title":"Avoiding the medial brachial cutaneous nerve in brachioplasty: an anatomical study","volume":"10","author":"Chowdhry","year":"2010","journal-title":"Plast Reconstr Surg"},{"key":"10.1016\/j.jclinane.2025.112081_bb0100","series-title":"Anatomy, shoulder and upper limb, medial brachial cutaneous nerve","first-page":"1","author":"Thomas","year":"2021"},{"key":"10.1016\/j.jclinane.2025.112081_bb0105","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1097\/ALN.0000000000003731","article-title":"Median effective volume of 0.5% Ropivacaine for ultrasound-guided Costoclavicular block. A dose-finding study","volume":"134","author":"Kewlani","year":"2021","journal-title":"Anesthesiology"},{"key":"10.1016\/j.jclinane.2025.112081_bb0110","doi-asserted-by":"crossref","first-page":"700","DOI":"10.1111\/anae.13445","article-title":"Yu HH, Luo AL: the minimum effective concentration (MEC90) of ropivacaine for ultrasound-guided supraclavicular brachial plexus block","volume":"71","author":"Fang","year":"2016","journal-title":"Anasthesia"}],"container-title":["Journal of Clinical Anesthesia"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0952818025003423?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0952818025003423?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T20:22:23Z","timestamp":1768854143000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0952818025003423"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1]]},"references-count":22,"alternative-id":["S0952818025003423"],"URL":"https:\/\/doi.org\/10.1016\/j.jclinane.2025.112081","relation":{},"ISSN":["0952-8180"],"issn-type":[{"value":"0952-8180","type":"print"}],"subject":[],"published":{"date-parts":[[2026,1]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"A simplified standardized ultrasound-guided plane block for the Intercostobrachial nerve: Effective volume of 0.5\u00a0% ropivacaine determined by Dixon's up-and-down method","name":"articletitle","label":"Article Title"},{"value":"Journal of Clinical Anesthesia","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.jclinane.2025.112081","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}],"article-number":"112081"}}