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Aokage K, Suzuki K, Saji H, Wakabayashi M, Kataoka T, Sekino Y, Fukuda H, Endo M, Hattori A, Mimae T, Miyoshi T, Isaka M, Yoshioka H, Nakajima R, Nakagawa K, Okami J, Ito H, Kuroda H, Tsuboi M, Okumura N, Takahama M, Ohde Y, Aoki T, Tsutani Y, Okada M, Watanabe SI. Segmentectomy for ground-glass-dominant lung cancer with a tumour diameter of 3 cm or less including ground-glass opacity (JCOG1211): a multicentre, single-arm, confirmatory, phase 3 trial. THE LANCET. RESPIRATORY MEDICINE 2023:S2213-2600(23)00041-3. [PMID: 36893780 DOI: 10.1016/s2213-2600(23)00041-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Although segmentectomy is a widely used surgical procedure, lobectomy is the standard procedure for resectable non-small-cell lung cancer (NSCLC). This study aimed to evaluate the efficacy and safety of segmentectomy for NSCLC up to 3 cm in size, including ground-glass opacity (GGO) and predominant GGO. METHODS A multicentre, single-arm, confirmatory phase 3 trial was conducted across 42 institutions (hospitals, university hospitals, and cancer centres) in Japan. Segmentectomy with hilar, interlobar, and intrapulmonary lymph node dissection was performed as protocol surgery for patients with a tumour diameter of up to 3 cm, including GGO and dominant GGO. Eligible patients were those aged 20-79 years with an Eastern Cooperative Oncology Group performance score of 0 or 1 and clinical stage IA tumour confirmed by thin-sliced CT. The primary endpoint was 5-year relapse-free survival (RFS). This study is registered with the University Hospital Medical Information Network Clinical Trials (UMIN000011819), and is ongoing. FINDINGS A total of 396 patients were registered from Sept 20, 2013, to Nov 13, 2015, of whom 357 underwent segmentectomy. At a median follow-up of 5·4 years (IQR 5·0-6·0), the 5-year RFS was 98·0% (95% CI 95·9-99·1). This finding exceeded the 87% of the pre-set threshold 5-year RFS and the primary endpoint was met. Grade 3 or 4 early postoperative complications occurred in seven patients (2%), but no grade 5 treatment-related deaths occurred. INTERPRETATION Segmentectomy should be considered as part of standard treatment for patients with predominantly GGO NSCLC with a tumour size of 3 cm or less in diameter, including GGO even if it exceeds 2 cm. FUNDING National Cancer Centre Research and Development Fund and Japan Agency for Medical Research and Development.
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Affiliation(s)
- Keiju Aokage
- Division of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
| | - Kenji Suzuki
- Department of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Hisashi Saji
- Division of Thoracic Surgery, St Marianna University School of Medicine, Kawasaki, Japan
| | - Masashi Wakabayashi
- JCOG Data Center and Operations Office, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoko Kataoka
- JCOG Data Center and Operations Office, National Cancer Center Hospital, Tokyo, Japan
| | - Yuta Sekino
- JCOG Data Center and Operations Office, National Cancer Center Hospital, Tokyo, Japan
| | - Haruhiko Fukuda
- JCOG Data Center and Operations Office, National Cancer Center Hospital, Tokyo, Japan
| | - Makoto Endo
- Division of Thoracic Surgery, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Aritoshi Hattori
- Department of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Takahiro Mimae
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Tomohiro Miyoshi
- Division of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Mitsuhiro Isaka
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroshige Yoshioka
- Department of Thoracic Oncology, Kansai Medical University Hospital, Osaka, Japan
| | - Ryu Nakajima
- Division of Thoracic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Kazuo Nakagawa
- Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Jiro Okami
- Division of Thoracic Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Hiroyuki Ito
- Division of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Hiroaki Kuroda
- Division of Thoracic Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Masahiro Tsuboi
- Division of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Norihito Okumura
- Division of Thoracic Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Makoto Takahama
- Division of Thoracic Surgery, Osaka City General Hospital, Osaka, Japan
| | - Yasuhisa Ohde
- Division of Thoracic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Tadashi Aoki
- Division of Thoracic Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Yasuhiro Tsutani
- Division of Thoracic Surgery, Kindai University Hospital, Osaka, Japan
| | - Morihito Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Shun-Ichi Watanabe
- Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
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Eguchi T, Sato T, Shimizu K. Technical Advances in Segmentectomy for Lung Cancer: A Minimally Invasive Strategy for Deep, Small, and Impalpable Tumors. Cancers (Basel) 2021; 13:3137. [PMID: 34201652 PMCID: PMC8268648 DOI: 10.3390/cancers13133137] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/11/2021] [Accepted: 06/18/2021] [Indexed: 12/25/2022] Open
Abstract
With the increased detection of early-stage lung cancer and the technical advancement of minimally invasive surgery (MIS) in the field of thoracic surgery, lung segmentectomy using MIS, including video- and robot-assisted thoracic surgery, has been widely adopted. However, lung segmentectomy can be technically challenging for thoracic surgeons due to (1) complex segmental and subsegmental anatomy with frequent anomalies, and (2) difficulty in localizing deep, small, and impalpable tumors, leading to difficulty in obtaining adequate margins. In this review, we summarize the published evidence and discuss key issues related to MIS segmentectomy, focusing on preoperative planning/simulation and intraoperative tumor localization. We also demonstrate two of our techniques: (1) three-dimensional computed tomography (3DCT)-based resection planning using a novel 3DCT processing software, and (2) tumor localization using a novel radiofrequency identification technology.
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Affiliation(s)
- Takashi Eguchi
- Division of General Thoracic Surgery, Department of Surgery, School of Medicine, Shinshu University, Matsumoto 390-8621, Japan;
| | - Toshihiko Sato
- Department of General Thoracic, Breast, Pediatric Surgery, Faculty of Medicine, Fukuoka University, Fukuoka 814-0180, Japan;
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, School of Medicine, Shinshu University, Matsumoto 390-8621, Japan;
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Sarsam M, Glorion M, de Wolf J, Cassiano F, Puyo P, Sage E, Chapelier A. The role of three-dimensional reconstructions in understanding the intersegmental plane: an anatomical study of segment 6. Eur J Cardiothorac Surg 2021; 58:763-767. [PMID: 32359060 DOI: 10.1093/ejcts/ezaa123] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/17/2020] [Accepted: 02/21/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The identification of the intersegmental plane during lung segmentectomies remains a practical difficulty, notably with minimally invasive approaches. The intraoperative techniques are based on demarcating either the bronchial or the vascular territories. The goal of this study was to evaluate the use of 3-dimensional reconstructions in understanding the intersegmental plane of segment 6. METHODS Between March and September 2018, Synapse 3-dimensional programme was used to carry out bilateral venous, arterial and bronchial segmentations of segment 6. All computed tomography (CT) scans were contrast-enhanced and of a high resolution (0.6 mm slices). The patients had normal results on respiratory function tests. The volumes obtained from each of the 3 modalities were then compared. The results are presented as mean and standard deviation and as median and interquartile ranges for lung volume measurements. RESULTS During the aforementioned period, 15 high-resolution chest CT scans were selected (8 men and 7 women). The median age was 70 years. In all of the studied segments (N = 30, 15 right S6 and 15 left S6), the segmental volume of the vein was greater than the segmental volumes of the bronchus and the artery. A significant difference was found between the segmental volumes obtained from the 3 modalities (P = 0.001). The segmental volume of the vein was significantly higher than the segmental volume of the bronchus (P < 0.001) and the segmental volume of the artery (P < 0.001). On the other hand, the segmental volume of the artery was significantly higher than the segmental volume of the bronchus (P = 0.01). CONCLUSIONS Within the limits of this study, the segmental venous volume of S6 was greater than the volumes of the segmental bronchial and arterial volumes. Thus, depending solely on bronchial techniques might lead to leaving a border zone in venous congestion.
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Affiliation(s)
- Matthieu Sarsam
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Matthieu Glorion
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Julien de Wolf
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Francesco Cassiano
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Philippe Puyo
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Edouard Sage
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
| | - Alain Chapelier
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, Suresnes, France
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Yanagiya M, Hiyama N, Matsumoto J. Hybrid technique of virtual-assisted lung mapping and systemic indocyanine green injection for extended segmentectomy. Surg Case Rep 2020; 6:273. [PMID: 33108570 PMCID: PMC7591651 DOI: 10.1186/s40792-020-01052-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/18/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Various approaches have been used to assist and facilitate segmentectomy with favorable oncological outcomes. We describe a hybrid approach comprising virtual-assisted lung mapping (VAL-MAP), which is a preoperative bronchoscopic dye-marking technique, combined with systemic indocyanine green (ICG) injection. CLINICAL PRESENTATION An asymptomatic 64-year-old man was referred to our department because of a lung nodule detected during his annual medical checkup. The chest computed-tomography image revealed a 16-mm, partly solid, ground-glass nodule in the left segment 4. Because the nodule was hardly palpable and deeply located between the left upper division segment and the left lingular segment, we performed VAL-MAP to facilitate extended left lingulectomy. Five dye markings were undertaken preoperatively. Surgery to remove the nodule was then conducted via complete three-port video-assisted thoracic surgery. The VAL-MAP markings were easily identified intraoperatively and helped locate the nodule. The intersegmental plane was identified by the ICG injection. The resection line was determined based on the intersegmental plane identified by the ICG injection and the site of the nodule suggested by the VAL-MAP markings. Following the resection line, we thoracoscopically achieved extended lingulectomy with sufficient surgical margins. The patient was discharged with no complications. The pathological diagnosis was adenocarcinoma in situ. CONCLUSION The hybrid technique of VAL-MAP and systemic ICG injection can be useful for accomplishing successful extended segmentectomy.
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Affiliation(s)
- Masahiro Yanagiya
- Department of General Thoracic Surgery, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625 Japan
| | - Noriko Hiyama
- Department of General Thoracic Surgery, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625 Japan
| | - Jun Matsumoto
- Department of General Thoracic Surgery, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625 Japan
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Andolfi M, Potenza R, Seguin-Givelet A, Gossot D. Identification of the intersegmental plane during thoracoscopic segmentectomy: state of the art. Interact Cardiovasc Thorac Surg 2020; 30:329-336. [PMID: 31773135 DOI: 10.1093/icvts/ivz278] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/30/2019] [Accepted: 10/10/2019] [Indexed: 12/26/2022] Open
Abstract
During thoracoscopic segmentectomy, where direct palpation of the tumour is not always possible, achieving adequate margins from the cancer is of crucial importance. It is thus mandatory to accurately identify the intersegmental plane (ISP). Indeed, inadequate determination and division of the ISP can lead to unsatisfactory oncological results. Our systematic review focused on the effectiveness of the different techniques for identifying the ISP, highlighting the fact that a 1-size-fits-all method is not feasible. Based on the published evidence, 6 main methods were reported, each with its pros and cons: inflation-deflation technique, selective resected segmental inflation, systemic injection of indocyanine green, injection of endobronchial dye, 3-dimensional simulation using multidetector computed tomography and virtual-assisted lung mapping. In conclusion, ISP demarcation is mandatory to achieve a high rate of success of thoracoscopic segmentectomy, and it is very helpful in surgical planning, especially when preoperative multidetector computed tomography and 3-dimensional reconstructions are routinely performed.
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Affiliation(s)
- Marco Andolfi
- Department of Thoracic Surgery, AOU Ospedali Riuniti, Ancona, Italy.,Department of Medicine, University of Perugia Medical School, Perugia, Italy
| | - Rossella Potenza
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Agathe Seguin-Givelet
- Thoracic Department, Curie-Montsouris Thoracic Institute, Institut Mutualiste Montsouris, Paris, France.,Sorbonne Paris Cité, Faculty of Medicine SMBH, Paris 13 University, Bobigny, France
| | - Dominique Gossot
- Thoracic Department, Curie-Montsouris Thoracic Institute, Institut Mutualiste Montsouris, Paris, France
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