{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T06:03:50Z","timestamp":1784873030240,"version":"3.55.0"},"reference-count":21,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T00:00:00Z","timestamp":1784764800000},"content-version":"vor","delay-in-days":203,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100016804","name":"Natural Science Foundation of Shenzhen Municipality","doi-asserted-by":"publisher","award":["JCYJ20250604191408012"],"award-info":[{"award-number":["JCYJ20250604191408012"]}],"id":[{"id":"10.13039\/100016804","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100017610","name":"Shenzhen Science and Technology Innovation Program","doi-asserted-by":"publisher","award":["JCYJ20230807120213026"],"award-info":[{"award-number":["JCYJ20230807120213026"]}],"id":[{"id":"10.13039\/501100017610","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100017610","name":"Shenzhen Science and Technology Innovation Program","doi-asserted-by":"publisher","award":["JCYJ20240813115035045"],"award-info":[{"award-number":["JCYJ20240813115035045"]}],"id":[{"id":"10.13039\/501100017610","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018684","name":"National Health Commission of the People's Republic of China","doi-asserted-by":"publisher","award":["2025FYH21"],"award-info":[{"award-number":["2025FYH21"]}],"id":[{"id":"10.13039\/501100018684","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Nursing Management"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Peripherally inserted central catheters (PICCs) are essential for very low birth weight infants (VLBWIs), but optimal insertion depth remains challenging. Existing estimation methods often yield suboptimal accuracy. This study aimed to develop and validate anthropometric parameter\u2010based formulas to predict lower extremity PICC insertion depth using the first popliteal crease as an anatomical landmark in VLBWI, seeking to improve first\u2010attempt success rates and procedural safety.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A prospective study was conducted in a tertiary NICU, enrolling 329 VLBWIs who underwent lower limb PICC insertion between May 2023 and May 2024. Data collected included sex, target vein for catheterization, body weight, length, head circumference at insertion, and vertical distance from the puncture site to the first popliteal crease. Pearson correlation and linear regression analyses were performed to examine associations between anthropometric parameters and optimal catheter length. Univariate prediction formulas (weight\u2010based, length\u2010based, and head circumference\u2010based models) and multivariate regression models were established. Bland\u2013Altman analysis was used to validate model agreement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Univariate regression analysis yielded the following: weight\u2010based model: total insertion depth (cm)\u2009=\u2009[8.31\u2009+\u2009(5 \u00d7 body weight [kg])]\u2009\u00b1\u2009PS\u2010PTC distance, where \u201c+\u201d applies when the puncture site is distal to the popliteal crease and \u201c\u2212\u201d applies when proximal; 8.31 is the regression intercept and five is the regression slope coefficient. Length\u2010based model: total insertion depth (cm)\u2009=\u2009[1.13\u2009+\u2009(0.35 \u00d7 body length [cm])]\u2009\u00b1\u2009PS\u2010PTC distance; 1.13 is the intercept and 0.35 is the slope coefficient. Head circumference\u2010based model: total insertion depth (cm)\u2009=\u2009[2.33\u2009+\u2009(0.43 \u00d7 head circumference [cm])]\u2009\u00b1\u2009PS\u2010PTC distance; 2.33 is the intercept and 0.43 is the slope coefficient. Multivariate regression analysis established four combination models, with Model IV (weight\u2009+\u2009length\u2009+\u2009head circumference) showing optimal performance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Anthropometric parameter\u2013based prediction formulas provide precise guidance for lower extremity PICC placement in VLBWI, enhancing placement success and safety. This approach supports individualized care and is especially valuable where ultrasound guidance is limited.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/jonm\/2067769","type":"journal-article","created":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T05:47:18Z","timestamp":1784872038000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["An Equation to Estimate PICC Catheter Length in Very Low Birth Weight Infants"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-5307-6807","authenticated-orcid":false,"given":"Jiaxin","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yubing","family":"Dong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qingling","family":"Yu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aifen","family":"Cao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shan","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yinsui","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyun","family":"Xiong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,23]]},"reference":[{"key":"e_1_2_10_1_2","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000015837"},{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/ANC.0000000000000817"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/ANC.0b013e31827e1d01"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.25122\/jml-2020-0011"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1590\/1980-220X-REEUSP-2021-0043"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.3233\/NPM-16105"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.29271\/jcpsp.2021.12.1478"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.7759\/cureus.56335"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.5301\/jva.5000281"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00247-022-05379-7"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.3389\/fped.2022.976826"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1097\/NAN.0000000000000532"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1097\/ANC.0000000000000692"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1097\/JPN.0000000000000585"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.3346\/jkms.2023.38.e23"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.1159\/000528076"},{"key":"e_1_2_10_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.pedneo.2018.07.011"},{"key":"e_1_2_10_18_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0294598"},{"key":"e_1_2_10_19_2","doi-asserted-by":"publisher","DOI":"10.37616\/2212-5043.1292"},{"key":"e_1_2_10_20_2","doi-asserted-by":"publisher","DOI":"10.3389\/fped.2022.987512"},{"key":"e_1_2_10_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2021.106472"}],"container-title":["Journal 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