[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-448169-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-448169-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","completion-lobectomy-following-segmentectomy-for-malignant-lung-tumors-a-multi-institutional-study-of-surgical-feasibility-oncologic-outcomes-and-diagnostic-challenges-essg-02-study","Completion lobectomy following segmentectomy for malignant lung tumors - a multi-institutional study of surgical feasibility, oncologic outcomes, and diagnostic challenges (ESSG-02 study)","","Completion lobectomy (CL) is sometimes required after segmentectomy for malignant lung tumors, especially when local recurrence occurs at the resection margin, yet evidence on feasibility and long-term results remains limited. This multi-institutional retrospective study assessed perioperative safety and oncologic outcomes of CL after segmentectomy. Eighteen patients treated between 2000 and 2023 were analyzed, including an exploratory post-hoc comparison of true local recurrence and granuloma using clinical and radiological features.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/healthcare/","Healthcare",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/completion-lobectomy-following-segmentectomy-for-malignant-lung-tumors-a-multi-institutional-study-of-surgical-feasibility-oncologic-outcomes-and-diagnostic-challenges-essg-02-study/448169/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/completion-lobectomy-following-segmentectomy-for-malignant-lung-tumors-a-multi-institutional-study-of-surgical-feasibility-oncologic-outcomes-and-diagnostic-challenges-essg-02-study/448169.png","ImageObject",300,407,{"name":42,"@type":43},"Ezra","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-09-29",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",10,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"Why is completion lobectomy needed after segmentectomy for malignant lung tumors?","Question",{"text":63,"@type":64},"It is occasionally required when local recurrence arises at the segmental resection margin or when a new lesion develops in the same lobe. The study context notes that segment-sparing procedures increase the need for such salvage options.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What perioperative outcomes were observed after completion lobectomy?",{"text":68,"@type":64},"In the reported cohort, video-assisted thoracic surgery was performed in 27.8% without conversions to thoracotomy. Pulmonary artery injury occurred in 11.1%, and postoperative complications occurred in 27.8%, with prolonged air leak as the most common complication. No perioperative mortality was observed.",{"name":70,"@type":61,"acceptedAnswer":71},"How were recurrence and granuloma distinguished, and what did the pathology show?",{"text":72,"@type":64},"Final pathology showed local recurrence in 50.0%, metachronous primary lung cancer in 27.8%, and granuloma in 22.2%. Among 13 patients clinically diagnosed with local recurrence preoperatively, 3 were ultimately granuloma, and exploratory analysis suggested interval tumor shrinkage and lack of vascular/bronchial involvement may help differentiation.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},448169,1790888728,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,106,110,115,120,123,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":103,"show_sort_weight":104,"slug":105},6,"Technology",50,"technology",{"id":107,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":108,"slug":109},7,40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":55,"slug":125},"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":97,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":107,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":145,"preview_page_count":4},1099514068035,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Completion lobectomy following segmentectomy for malignant lung tumors: a multi-institutional study of surgical feasibility, oncologic outcomes, and diagnostic challenges (ESSG-02 study)  \nTakuya Watanabe 1 ^ * , Kosuke Fujino2* , Tadashi Sakane 3* , Yoshinori Handa4* , Takefumi Doi 5* , Natsuko Kawatani6, Seshiru Nakazawa6* , Takahiro Iida7* , Ryutaro Hanawa8* , Shuichi Shinohara9* , Atsushi Ito10*, Masayuki Tanahashi1^  \n1Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, Hamamatsu, Japan; 2Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; 3Department of Thoracic Surgery, Nagoya City University West Medical Center, Nagoya, Japan; 4Department of Thoracic Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan; 5Division of Thoracic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan; 6Division of General Thoracic Surgery, Integrative Center of General Surgery, Gunma University Hospital, Maebashi, Japan; 7Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan; 8Department of General Thoracic Surgery, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan; 9Department of Thoracic Surgery, Anjo Kosei Hospital, Anjo, Japan; 10Division of Thoracic Surgery, Respiratory Center, Matsusaka Municipal Hospital, Matsusaka, Japan  \nContributions: (I) Conception and design: T Watanabe; (II) Administrative support: T Watanabe; (III) Provision of study materials or patients: All authors; (IV) Collection and assembly of data: T Watanabe, T Sakane; (V) Data analysis and interpretation: T Watanabe, K Fujino, T Sakane, YHanda; (VI) Manuscript writing: All authors; (VII) Final approval of the manuscript: All authors.  \nCorrespondence to: Takuya Watanabe, MD, PhD. Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453  \nMikatahara-cho, Chuo-ku, Hamamatsu, Shizuoka, 433-8558, [Japan. Email: watanabechoke@gmail.com](Japan. Email: watanabechoke@gmail.com).  \nBackground: Completion lobectomy (CL) is occasionally required after segmentectomy for malignant lung tumors, particularly in cases of local recurrence at the resection margins. However, evidence of its technical feasibility and long-term outcomes remains limited. This study aimed to evaluate the surgical feasibility and oncologic outcomes of CL following segmentectomy for malignant lung tumors in a multi  \ninstitutional cohort.  \nMethods: This multi-institutional retrospective study included 18 patients who underwent CL after segmentectomy for malignant lung tumors between 2000 and 2023. The surgical procedures, perioperative outcomes, and long-term survival were evaluated. An exploratory post-hoc analysis was also performed to  \ncompare clinical and radiological features of true local recurrence and granuloma.  \nResults: The most common indication for CL, based on preoperative clinical diagnosis, was local recurrence at the segmental resection margin (72.2%) . Video-assisted thoracic surgery (VATS) was performed in 27.8% of patients, with no conversions to thoracotomy. Pulmonary artery (PA) injury occurred in 11.1% and postoperative complications in 27.8%, with prolonged air leak being the most common.  \nPerioperative mortality was not observed. On final pathological diagnosis, 50.0% of patients had local recurrence, 27.8% had metachronous primary lung cancer, and 22.2% had granuloma. Among 13 patients clinically diagnosed with local recurrence preoperatively, 3 were ultimately diagnosed with granuloma. The 5-year overall survival (OS) rate after CL for local recurrence was 58.3%, with a median OS of 87.2 months.  \nAn exploratory analysis suggested that features such as interval tumor shrinkage and absence of vascular/  \nbronchial involvement may aid in distinguishing recurrence from granuloma.  \nConclusions: CL after segmentectomy is a feasible and safe procedure when performed with careful planning ","cbCaiqN5gXTtAlsg","https://ap.wps.com/l/cbCaiqN5gXTtAlsg","pdf",303621,11,"English","# Introduction\n# Methods\n# Results\n# Conclusions","[{\"question\":\"Why is completion lobectomy needed after segmentectomy for malignant lung tumors?\",\"answer\":\"It is occasionally required when local recurrence arises at the segmental resection margin or when a new lesion develops in the same lobe. The study context notes that segment-sparing procedures increase the need for such salvage options.\"},{\"question\":\"What perioperative outcomes were observed after completion lobectomy?\",\"answer\":\"In the reported cohort, video-assisted thoracic surgery was performed in 27.8% without conversions to thoracotomy. Pulmonary artery injury occurred in 11.1%, and postoperative complications occurred in 27.8%, with prolonged air leak as the most common complication. No perioperative mortality was observed.\"},{\"question\":\"How were recurrence and granuloma distinguished, and what did the pathology show?\",\"answer\":\"Final pathology showed local recurrence in 50.0%, metachronous primary lung cancer in 27.8%, and granuloma in 22.2%. Among 13 patients clinically diagnosed with local recurrence preoperatively, 3 were ultimately granuloma, and exploratory analysis suggested interval tumor shrinkage and lack of vascular/bronchial involvement may help differentiation.\"}]","Completion lobectomy following segmentectomy for malignant lung tumors - a multi-institutional study of surgical feasibility, oncologic outcomes, and diagnostic challenges (ESSG-02 study) | PDF",1790725818,28]