{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T06:13:39Z","timestamp":1775542419268,"version":"3.50.1"},"reference-count":32,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T00:00:00Z","timestamp":1775520000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Children with congenital heart disease (CHD) frequently experience postoperative sleep disturbances, which can adversely affect recovery and overall postoperative outcomes. Maternal voice has been suggested as a soothing auditory stimulus with the potential to improve sleep quality in children. This study aims to evaluate the effect of auditory intervention centered on the maternal voice on sleep quality in children undergoing cardiac surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This prospective, randomized controlled trial will enroll 132 children with CHD undergoing open-heart surgery. Participants will be randomly assigned to either the control group or the maternal voice\u2013based intervention group. The primary outcome is the overall sleep efficiency across the night of surgery, postoperative Day 1, and postoperative Day 2. Secondary outcomes include additional sleep parameters, pain scores, sedation scores, delirium scores, B-type natriuretic peptide (BNP) levels, cardiac troponin I (cTnI) levels, dosages of dexmedetomidine and sufentanil, cardiac intensive care unit (CICU) length of stay, total hospital length of stay, and parental satisfaction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This trial aims to provide high-quality evidence on maternal voice to improve postoperative sleep quality in children with CHD.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration numbers<\/jats:title>\n                    <jats:p>\n                      Chinese Clinical Trial Registry (\n                      <jats:ext-link>https:\/\/www.chictr.org.cn<\/jats:ext-link>\n                      ) ChiCTR2500111004.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fmed.2026.1760057","type":"journal-article","created":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T05:33:04Z","timestamp":1775539984000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of maternal voice on sleep quality in children following cardiac surgery: protocol for a randomized controlled trial"],"prefix":"10.3389","volume":"13","author":[{"given":"Songsong","family":"Shi","sequence":"first","affiliation":[{"name":"Department of Cardiothoracic Surgery, Shanghai Children's Medical Center affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]},{"name":"School of Nursing, Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinhong","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Nursing, Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renzhen","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Suzhou Xiangcheng People's Hospital","place":["Suzhou, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fengxia","family":"Du","sequence":"additional","affiliation":[{"name":"Department of Nursing, Suzhou Xiangcheng People's Hospital","place":["Suzhou, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hao","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Cardiothoracic Surgery, Shanghai Children's Medical Center affiliated to Shanghai Jiao Tong University School of Medicine","place":["Shanghai, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Youjia","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Sir Run Run 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