{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T16:56:24Z","timestamp":1776963384492,"version":"3.51.4"},"reference-count":20,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2025,6,15]],"date-time":"2025-06-15T00:00:00Z","timestamp":1749945600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: The primary objective of PE repair is to relieve compression exerted on the cardiac and pulmonary structures and enhance the thoracic cavity volume. However, the number of volumetric studies of the thoracic cavity, including the heart and lung volumes, is scarce. This study seeks to systematically evaluate the volumetric changes in these structures to assess the physiological impact obtained by PE repair. Methods: A retrospective analysis was conducted on 63 patients who underwent PE repair using the XI bar technique from April 2023 to February 2024. Volumetric changes were measured preoperatively and postoperatively using SYNAPSE 3D imaging software (Version 4.6, Fujifilm, Tokyo, Japan). Cardiac and pulmonary volumes were quantified, and CT indexes (Haller index, Depression index) were assessed. Complication rates, reoperation rates, and length of hospital stay were also analyzed. Results: The mean cardiac volume increased significantly from 458.25 mL preoperatively to 499.13 mL postoperatively (p = 0.018), showing an 8.9% increase. Pulmonary volumes, however, showed no statistically significant change, remaining stable at approximately 4371.31 mL preoperatively and 4266.87 mL postoperatively (p = 0.57). Conclusions: Repairing PE markedly enhances cardiac volume, emphasizing its importance in relieving mediastinal compression. Pulmonary volumes remain largely unaffected, suggesting that PE primarily impacts cardiac structures. Our approach to the volumetric measurements provides valuable insights into the physiological outcomes of chest wall remodeling and is considered to be a good modality for future studies to enhance our understanding of the functional benefits of PE repair.<\/jats:p>","DOI":"10.3390\/jcm14124250","type":"journal-article","created":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T06:40:27Z","timestamp":1750056027000},"page":"4250","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Volume Change Measurements of the Heart and Lungs After Pectus Excavatum Repair"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0982-7851","authenticated-orcid":false,"given":"Gongmin","family":"Rim","sequence":"first","affiliation":[{"name":"Department of Thoracic and Cardiovascular Surgery, Cha Medical University Bundang Cha Hospital, Seongnam 13497, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kwanyong","family":"Hyun","sequence":"additional","affiliation":[{"name":"Department of Thoracic and Cardiovascular Surgery, The Catholic University of Korea St. Vincent\u2019s Hospital, Suwon 16247, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyung Joo","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Pediatric & Thoracic Surgery, Cleveland Clinic Pectus and Chest Wall Institute, Cleveland Clinic Children\u2019s Hospital, 8950 Euclid Ave\/R3, Cleveland, OH 44106, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,6,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1687","DOI":"10.21037\/jtd-23-957","article-title":"Pectus excavatum and carinatum: A narrative review of epidemiology, etiopathogenesis, clinical features, and classification","volume":"16","author":"Janssen","year":"2024","journal-title":"J. Thorac. Dis."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1886","DOI":"10.1016\/j.athoracsur.2016.05.079","article-title":"Classification of Pectus Excavatum According to Objective Parameters From Chest Computed Tomography","volume":"102","author":"Choi","year":"2016","journal-title":"Ann. Thorac. Surg."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1016\/S0003-4975(03)01330-4","article-title":"The Nuss procedure for pectus excavatum: Evolution of techniques and early results on 322 patients","volume":"77","author":"Park","year":"2004","journal-title":"Ann. Thorac. Surg."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"640","DOI":"10.1016\/j.jpedsurg.2023.12.012","article-title":"Recent Advancements in Pectus Surgery: Crane Lifting, Multiple-Bar Approach, Bridge Stabilization, and Sandwich Technique","volume":"59","author":"Park","year":"2024","journal-title":"J. Pediatr. Surg."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1016\/j.jtcvs.2009.09.003","article-title":"Minimally invasive repair of pectus excavatum: A novel morphology-tailored, patient-specific approach","volume":"139","author":"Park","year":"2010","journal-title":"J. Thorac. Cardiovasc. Surg."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"229","DOI":"10.5090\/jcs.22.136","article-title":"Technical Advances in Pectus Bar Stabilization in Chest Wall Deformity Surgery: 10-Year Trends and an Appraisal with 1500 Patients","volume":"56","author":"Kim","year":"2023","journal-title":"J. Chest Surg."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Haecker, F.M., Krebs, T.F., and Kleitsch, K.U. (2022). Current Development of Minimally Invasive Repair of Pectus Excavatum (MIRPE). Children, 9.","DOI":"10.3390\/children9040478"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Park, H.J., Rim, G., and Yoon, S.K. (2023). Crane-powered pectus excavatum repair: The NeoPectus surgery. Front. Surg., 10.","DOI":"10.3389\/fsurg.2023.1267009"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"186","DOI":"10.5090\/jcs.21.008","article-title":"Development of a Screw-Crane System for Pre-Lifting the SternalDepression in Pectus Excavatum Repair: A Test of Mechanical Properties for the Feasibility of a New Concept","volume":"54","author":"Park","year":"2021","journal-title":"J. Chest Surg."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"497","DOI":"10.1093\/icvts\/ivz142","article-title":"Sternal elevation techniques during the minimally invasive repair of pectus excavatum","volume":"29","author":"Haecker","year":"2019","journal-title":"Interact. Cardiovasc. Thorac. Surg."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1320","DOI":"10.1016\/j.jpedsurg.2014.12.001","article-title":"The bridge technique for pectus bar fixation: A method to make the bar un-rotatable","volume":"50","author":"Park","year":"2015","journal-title":"J. Pediatr. Surg."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"434","DOI":"10.21037\/acs.2016.08.04","article-title":"The sandwich technique for repair of pectus carinatum and excavatum\/carinatum complex","volume":"5","author":"Park","year":"2016","journal-title":"Ann. Cardiothorac. Surg."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"526","DOI":"10.21037\/acs.2016.08.01","article-title":"A technique for complex pectus excavatum repair: The cross-bar technique for grand canyon type deformity (Park classification)","volume":"5","author":"Park","year":"2016","journal-title":"Ann. Cardiothorac. Surg."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"e2863","DOI":"10.1097\/MD.0000000000002863","article-title":"Quantified Aortic Luminal Irregularity as a Predictor of Complications and Prognosis After Endovascular Aneurysm Repair","volume":"95","author":"Hosaka","year":"2016","journal-title":"Medicine"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1249","DOI":"10.3174\/ajnr.A4695","article-title":"Comparison of CSF Distribution between Idiopathic Normal Pressure Hydrocephalus and Alzheimer Disease","volume":"37","author":"Yamada","year":"2016","journal-title":"AJNR Am. J. Neuroradiol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"e022149","DOI":"10.1161\/JAHA.121.022149","article-title":"Cardiopulmonary Outcomes After the Nuss Procedure in Pectus Excavatum","volume":"11","author":"Jaroszewski","year":"2022","journal-title":"J. Am. Heart Assoc."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"455","DOI":"10.1016\/j.athoracsur.2017.09.037","article-title":"Impact of Pectus Excavatum on Cardiopulmonary Function","volume":"105","author":"Turial","year":"2018","journal-title":"Ann. Thorac. Surg."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"637","DOI":"10.1016\/j.ejcts.2006.07.004","article-title":"Pulmonary function following surgical repair of pectus excavatum: A meta-analysis","volume":"30","author":"Malek","year":"2006","journal-title":"Eur. J. Cardio-Thorac. Surg."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1016\/j.jpedsurg.2004.09.040","article-title":"Impact of pectus excavatum on pulmonary function before and after repair with the Nuss procedure","volume":"40","author":"Lawson","year":"2005","journal-title":"J. Pediatr. Surg."},{"key":"ref_20","first-page":"e77","article-title":"Cardiopulmonary response following surgical repair of pectus excavatum in adult patients","volume":"40","author":"Neviere","year":"2011","journal-title":"Eur. J. Cardiothorac. Surg."}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/14\/12\/4250\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T17:52:19Z","timestamp":1760032339000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/14\/12\/4250"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,15]]},"references-count":20,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2025,6]]}},"alternative-id":["jcm14124250"],"URL":"https:\/\/doi.org\/10.3390\/jcm14124250","relation":{},"ISSN":["2077-0383"],"issn-type":[{"value":"2077-0383","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,6,15]]}}}