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  1. Article ; Online: ASO Author Reflections: Long-Term Outcomes of Pulmonary Metastasectomy for Uterine Malignancies: A Multi-institutional Study in the Current Era.

    Kanzaki, Ryu

    Annals of surgical oncology

    2020  Volume 27, Issue 10, Page(s) 3829–3830

    MeSH term(s) Female ; Humans ; Lung Neoplasms/secondary ; Lung Neoplasms/surgery ; Metastasectomy ; Treatment Outcome ; Uterine Neoplasms/pathology ; Uterine Neoplasms/surgery
    Language English
    Publishing date 2020-04-26
    Publishing country United States
    Document type Journal Article ; Multicenter Study
    ZDB-ID 1200469-8
    ISSN 1534-4681 ; 1068-9265
    ISSN (online) 1534-4681
    ISSN 1068-9265
    DOI 10.1245/s10434-020-08502-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Metastatic pathways to the lower zone by segment in patients with clinical T1 lower lobe non-small cell lung cancer.

    Maniwa, Tomohiro / Ohue, Masayuki / Kanzaki, Ryu / Shintani, Yasushi / Okami, Jiro

    General thoracic and cardiovascular surgery

    2024  

    Abstract: Objective: Segmentectomy and mediastinal lymph node dissection (LND) may increasingly be used for non-small cell lung cancer (NSCLC). Lymph node metastasis (LNM) distribution varies by lower lobe segments; however, its segment-specific spread to the ... ...

    Abstract Objective: Segmentectomy and mediastinal lymph node dissection (LND) may increasingly be used for non-small cell lung cancer (NSCLC). Lymph node metastasis (LNM) distribution varies by lower lobe segments; however, its segment-specific spread to the lower zone (#8, 9) (LZ) in lower lobe NSCLC is seldom reported.
    Methods: In total, 352 patients with clinical T1 lower lobe NSCLC who underwent lobectomy with systematic or lobe-specific LND were included for analysis between January 2006 and December 2018.
    Results: Fifty-eight (16.2%) patients had LNM (pN1: 24, pN2: 34), and nine (2.6%) had LZ metastasis. LZ metastasis was significantly more frequent in tumors with diameter > 2 cm, tumors without ground-glass opacity on radiological findings, left lung cancer, and basal segment lung cancer (respectively, p = 0.039, 0.006, 0.0177, 0.0024). None of the S6 NSCLC patients had LZ metastasis. Two patients with right basal segment NSCLC had LZ metastases (tumor on S10) as well as N1 lymph node and subcarinal zone metastasis. Seven (8.4%) patients with left basal segment NSCLC had LZ metastasis (tumor on S8: 3, tumor on S10: 4). Of them, three patients with left basal NSCLC had isolated LZ metastasis.
    Conclusions: The LND of the LZ can be omitted for clinical T1 patients with S6 NSCLC. In addition, the LND of the LZ may be omitted in right basal NSCLC if intraoperative confirmation of negative N1 and subcarinal zone lymph nodes is obtained; however, it is necessary for left basal segment NSCLC.
    Language English
    Publishing date 2024-03-18
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2376888-5
    ISSN 1863-6713 ; 1863-6705
    ISSN (online) 1863-6713
    ISSN 1863-6705
    DOI 10.1007/s11748-024-02021-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Outcomes and prognostic factors of repeat pulmonary metastasectomy.

    Kanzaki, Ryu / Watari, Hirokazu / Omura, Akiisa / Kawagishi, Sachi / Tanaka, Ryo / Maniwa, Tomohiro / Okami, Jiro

    Interdisciplinary cardiovascular and thoracic surgery

    2024  Volume 38, Issue 3

    Abstract: Objectives: Information on prognostic factors after repeat pulmonary metastasectomy (PM) is limited, and outcomes after a third PM are not well documented.: Methods: A single-institute retrospective study was conducted. Between 2000 and 2020, 68 ... ...

    Abstract Objectives: Information on prognostic factors after repeat pulmonary metastasectomy (PM) is limited, and outcomes after a third PM are not well documented.
    Methods: A single-institute retrospective study was conducted. Between 2000 and 2020, 68 patients underwent repeat PM for pulmonary metastases from various cancers. Outcomes and prognostic factors for the second PM and outcomes after the third PM were analysed.
    Results: This study included 39 men and 29 women. The mean age at second PM was 53.2 years old. The primary tumours were soft tissue sarcoma in 24 patients, colorectal cancer in 19 and osteosarcoma in 10. The interval between the first PM procedure and detection of pulmonary metastasis after the first PM (months) was ≤12 in 37 patients and >12 in 31 patients. At the second PM, 20 patients underwent lobectomy or bilobectomy, and 48 underwent sublobar resection. Complete resection was achieved in 60 patients, and 52 patients experienced recurrence after the second PM. The 5-year relapse-free survival and overall survival rates after the second PM were 27% and 48%, respectively. Multivariable analysis revealed that the interval between the first PM and the subsequent detection of pulmonary metastasis (≤12 months) was a poor prognostic factor for both relapse-free survival and overall survival after the second PM. Seventeen patients underwent a third PM, 3 of whom achieved a 3-year disease-free survival.
    Conclusions: Patients with a period of >12 months between the first PM and the subsequent detection of pulmonary metastases showed favourable outcomes and are thus considered good candidates for second PM. A third PM may be beneficial for selected patients.
    Language English
    Publishing date 2024-03-13
    Publishing country England
    Document type Journal Article
    ISSN 2753-670X
    ISSN (online) 2753-670X
    DOI 10.1093/icvts/ivae028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Heterogeneity of cancer-associated fibroblasts: Opportunities for precision medicine.

    Kanzaki, Ryu / Pietras, Kristian

    Cancer science

    2020  Volume 111, Issue 8, Page(s) 2708–2717

    Abstract: Despite marked development in cancer therapies during recent decades, the prognosis for advanced cancer remains poor. The conventional tumor-cell-centric view of cancer can only explain part of cancer progression, and thus a thorough understanding of the ...

    Abstract Despite marked development in cancer therapies during recent decades, the prognosis for advanced cancer remains poor. The conventional tumor-cell-centric view of cancer can only explain part of cancer progression, and thus a thorough understanding of the tumor microenvironment (TME) is crucial. Among cells within the TME, cancer-associated fibroblasts (CAFs) are attracting attention as a target for cancer therapy. However, CAFs present a heterogeneous population of cells and more detailed classification of CAFs and investigation of functions of each subset is needed to develop novel CAF-targeted therapies. In this context, application of newly developed approaches to single-cell analysis has already made an impact on our understanding of the heterogeneity of CAFs. Here, we review the recent literature on CAF heterogeneity and function, and discuss the possibility of novel therapies targeting CAF subsets.
    MeSH term(s) Antineoplastic Agents/pharmacology ; Antineoplastic Agents/therapeutic use ; Cancer-Associated Fibroblasts/drug effects ; Cancer-Associated Fibroblasts/metabolism ; Disease Progression ; Drug Resistance, Neoplasm/drug effects ; Drug Resistance, Neoplasm/genetics ; Gene Expression Regulation, Neoplastic/drug effects ; Genetic Heterogeneity ; Humans ; Neoplasms/drug therapy ; Neoplasms/genetics ; Neoplasms/pathology ; Precision Medicine/methods ; RNA-Seq ; Single-Cell Analysis ; Tumor Microenvironment/drug effects ; Tumor Microenvironment/genetics
    Chemical Substances Antineoplastic Agents
    Language English
    Publishing date 2020-07-11
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2115647-5
    ISSN 1349-7006 ; 1349-7006
    ISSN (online) 1349-7006
    ISSN 1349-7006
    DOI 10.1111/cas.14537
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Pathological Pleural Invasion is a Risk Factor for Late Recurrence in Long-Term Survivors of Non-small Cell Lung Cancer after Complete Resection.

    Kanzaki, Ryu / Fukuda, Hiroyuki / Kobayashi, Masao / Horiguchi, Julian / Kawagishi, Sachi / Maniwa, Tomohiro / Fujii, Makoto / Okami, Jiro

    Annals of surgical oncology

    2024  

    Abstract: Background: Information regarding late recurrence after pulmonary resection for non-small cell lung cancer (NSCLC) is limited. This study aimed to analyze the risk factors for late recurrence after surgery for NSCLC in the current era.: Patients and ... ...

    Abstract Background: Information regarding late recurrence after pulmonary resection for non-small cell lung cancer (NSCLC) is limited. This study aimed to analyze the risk factors for late recurrence after surgery for NSCLC in the current era.
    Patients and methods: We conducted a retrospective study of patients who underwent complete resection for pathological I-III NSCLC between 2006 and 2015. Late recurrence was defined as a recurrence that met the following conditions: (1) the patient underwent chest computed tomography (CT) at or after 54 months after surgery and recurrence was not detected at that time, and (2) recurrence that occurred more than 5 years after surgery. The factors influencing late recurrence, relapse-free survival (RFS), and overall survival (OS) after surgery were analyzed.
    Results: A total of 1275 with 5-year relapse-free survival after surgery were enrolled in this study. The mean age of the patients was 66.4 years and 54% of the patients were men. The median interval between surgery and the latest follow-up examination was 98 months. In total, 35 patients (2.7%) experienced late recurrence and 138 patients have died thus far. The cumulative recurrence, RFS, and OS rates at 10 years were 3.9%, 84.9%, and 86.3%, respectively. A multivariate analysis revealed that pleural invasion was an independent risk factor for late recurrence. Pleural invasion was a poor prognostic factor for both RFS and OS.
    Conclusions: Pleural invasion was a predictor of late recurrence. Age > 67 years, preoperative serum carcinoembryonic antigen (CEA) > 5 ng/ml, non-adenocarcinoma, and pleural invasion were poor prognostic factors for RFS.
    Language English
    Publishing date 2024-04-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1200469-8
    ISSN 1534-4681 ; 1068-9265
    ISSN (online) 1534-4681
    ISSN 1068-9265
    DOI 10.1245/s10434-024-15279-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Development of a multivariable prediction model for prolonged air leak after lung resection.

    Omura, Akiisa / Kanzaki, Ryu / Watari, Hirokazu / Kawagishi, Sachi / Tanaka, Ryo / Maniwa, Tomohiro / Fujii, Makoto / Okami, Jiro

    World journal of surgery

    2023  Volume 48, Issue 1, Page(s) 217–227

    Abstract: Objectives: Prolonged air leak (PAL) is a common complication of lung resection. Research on predictors of PAL using a digital drainage system (DDS) remains insufficient. In this study, we investigated the predictive factors of PAL to establish a novel ... ...

    Abstract Objectives: Prolonged air leak (PAL) is a common complication of lung resection. Research on predictors of PAL using a digital drainage system (DDS) remains insufficient. In this study, we investigated the predictive factors of PAL to establish a novel early postoperative prediction model for PAL.
    Methods: A retrospective cohort study and validation study were conducted. We examined patients who underwent lung resection with DDS at our institute. The relationship between the clinical factors and measurements of the DDS, including the difference between the set and measured intrapleural pressure (named: additional negative pressure [ANP]) at postoperative hour (POH) 3, with PAL was analyzed.
    Results: A total of 494 patients were enrolled, 29 of whom had PAL. Percent forced expiratory volume in 1 s <60%, ANP <1 cmH
    Conclusions: ANP at POH 3 is an independent predictor of PAL. Thus, the risk-scoring system proposed in this study is useful for predicting PAL in the early postoperative period.
    MeSH term(s) Humans ; Retrospective Studies ; Pulmonary Surgical Procedures ; Area Under Curve ; Drainage ; Lung
    Language English
    Publishing date 2023-12-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 224043-9
    ISSN 1432-2323 ; 0364-2313
    ISSN (online) 1432-2323
    ISSN 0364-2313
    DOI 10.1002/wjs.12007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Surgery for pulmonary lesions in patients with a history of urinary tract transitional cell carcinoma.

    Kanzaki, Ryu / Nagoya, Akihiro / Taniguchi, Seiji / Ishida, Hiroto / Kimura, Kenji / Fukui, Eriko / Kimura, Toru / Kanou, Takashi / Ose, Naoko / Funaki, Soichiro / Minami, Masato / Morii, Eiichi / Shintani, Yasushi

    Journal of cardiothoracic surgery

    2024  Volume 19, Issue 1, Page(s) 117

    Abstract: Background: There has been little information on the actual diagnosis of pulmonary lesions in patients with a history of urinary tract transitional cell carcinoma (TCC) and short- and long- outcomes of pulmonary resection for these patients.: Methods!# ...

    Abstract Background: There has been little information on the actual diagnosis of pulmonary lesions in patients with a history of urinary tract transitional cell carcinoma (TCC) and short- and long- outcomes of pulmonary resection for these patients.
    Methods: In the present study, the data of 37 consecutive patients with a history of TCC who underwent pulmonary resection for solitary pulmonary lesions were reviewed, and the clinical factors and short- and long-term outcomes were analyzed.
    Results: The study population included 35 male patients, and 2 female patients. The mean age was 72.5 years. Twenty patients (80%) were smokers and showed a high incidence of chronic obstructive pulmonary disease. Pulmonary lesions and primary TCC were detected simultaneously in 5 patients and metachronously in 32 patients. The median interval between treatment for primary TCC and the detection of pulmonary lesion was 43 months. The mean tumor diameter was 23 mm. The types of resection included lobectomy (n = 19), segmentectomy (n = 8), and partial resection (n = 10). Twelve of 37 patients (32%) developed postoperative complications. The pathological diagnoses included primary lung cancer (n = 28), pulmonary metastasis from TCC (n = 7), and others (n = 2). The 5-year overall survival rate for all patients was 72%. The 5-year overall survival rate of patients with primary lung cancer was 74%, while that of patients with pulmonary metastasis from TCC was 57%.
    Conclusions: Surgery can be proactively considered for treating pulmonary lesions in patients with a previous history of TCC, as it provides favorable long-term outcomes.
    MeSH term(s) Humans ; Male ; Female ; Aged ; Carcinoma, Transitional Cell/pathology ; Carcinoma, Transitional Cell/surgery ; Retrospective Studies ; Lung Neoplasms/surgery ; Urinary Tract/pathology
    Language English
    Publishing date 2024-03-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2227224-0
    ISSN 1749-8090 ; 1749-8090
    ISSN (online) 1749-8090
    ISSN 1749-8090
    DOI 10.1186/s13019-024-02607-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: ASO Author Reflections: The Role of Surgical Resection for Pleural Dissemination of Thymoma.

    Kimura, Kenji / Kanzaki, Ryu / Okumura, Meinoshin

    Annals of surgical oncology

    2019  Volume 26, Issue Suppl 3, Page(s) 747–748

    MeSH term(s) Humans ; Thymectomy ; Thymoma ; Thymus Neoplasms
    Language English
    Publishing date 2019-09-25
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 1200469-8
    ISSN 1534-4681 ; 1068-9265
    ISSN (online) 1534-4681
    ISSN 1068-9265
    DOI 10.1245/s10434-019-07861-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Utility of the surgical Apgar score for predicting the short- and long-term outcomes in non-small-cell lung cancer patients who undergo surgery.

    Nagoya, Akihiro / Kanzaki, Ryu / Kimura, Kenji / Fukui, Eriko / Kanou, Takashi / Ose, Naoko / Funaki, Soichiro / Minami, Masato / Fujii, Makoto / Shintani, Yasushi

    Interactive cardiovascular and thoracic surgery

    2022  Volume 35, Issue 2

    Abstract: Objectives: The surgical Apgar score (SAS) is a simple score that predicts postoperative complications based on 3 intraoperative valuables. The present study evaluated the association between the SAS and postoperative outcomes in non-small-cell lung ... ...

    Abstract Objectives: The surgical Apgar score (SAS) is a simple score that predicts postoperative complications based on 3 intraoperative valuables. The present study evaluated the association between the SAS and postoperative outcomes in non-small-cell lung cancer patients who underwent surgery.
    Methods: A total of 585 patients who underwent lung resection were enrolled in the present study. We calculated the SAS of each patient and investigated its influence on the short- and long-term outcomes.
    Results: Postoperative complications of any grade were detected in 164 cases (28%). The morbidity rate increased with decreasing SAS. When all the patients were divided into 2 groups (SAS <7 vs ≥7), postoperative complications were observed more frequently in the SAS <7 group than in the SAS ≥7 group (41% vs 25%, P < 0.001). In the multivariate analysis, the SAS was an independent risk factor for postoperative complications (odds ratio: 1.64 [1.03-2.61], P = 0.036). In terms of long-term outcomes, the 5-year disease-free survival (54.1% vs 73.2%, P < 0.001) and overall survival (73.8% vs 83.0%, P = 0.031) were significantly worse in the SAS <7 group than in the SAS ≥7 group. In a multivariate analysis, however, the SAS was not found to be an independent prognostic factor for either disease-free survival (hazard ratio: 1.39 [0.97-2.00], P = 0.075) or overall survival (hazard ratio: 0.90 [0.57-1.42], P = 0.642).
    Conclusions: The SAS reflected preoperative and intraoperative characteristics and was able to stratify the morbidity rate, suggesting it to be a useful predictor of short-term outcomes in non-small-cell lung cancer patients who undergo surgery.
    MeSH term(s) Apgar Score ; Carcinoma, Non-Small-Cell Lung/complications ; Carcinoma, Non-Small-Cell Lung/surgery ; Humans ; Infant, Newborn ; Lung Neoplasms/complications ; Lung Neoplasms/surgery ; Postoperative Complications/etiology ; Retrospective Studies ; Risk Factors
    Language English
    Publishing date 2022-05-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2095298-3
    ISSN 1569-9285 ; 1569-9293
    ISSN (online) 1569-9285
    ISSN 1569-9293
    DOI 10.1093/icvts/ivac150
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Dacomitinib overcomes afatinib-refractory carcinomatous meningitis in a lung cancer patient harbouring EGFR Ex.19 deletion and G724S mutation; a case report.

    Kunimasa, Kei / Sugimoto, Naotoshi / Tamiya, Motohiro / Inoue, Takako / Kawamura, Takahisa / Kanzaki, Ryu / Okami, Jiro / Nishino, Kazumi

    Investigational new drugs

    2022  Volume 40, Issue 5, Page(s) 1137–1140

    Abstract: It has been reported that the efficacy of EGFR-TKI is predicted, not by which exon of the EGFR gene is mutated, but by the structural change in the EGFR protein due to the mutation. Here, we present an EGFR-mutated lung cancer patient with a 13-year ... ...

    Abstract It has been reported that the efficacy of EGFR-TKI is predicted, not by which exon of the EGFR gene is mutated, but by the structural change in the EGFR protein due to the mutation. Here, we present an EGFR-mutated lung cancer patient with a 13-year history of anticancer treatment, in which EGFR ex.19 deletion (E746_S752 > V) and G724S mutations were detected by liquid biopsy during 12th line afatinib treatment, and switching to dacomitinib showed improvement of cancerous meningitis. We choose dacomitinib as 14th line chemotherapy based on ex.19 deletion and G724S mutant EGFR structure and its penetration rate to cerebral fluid, which successfully prolonged her life by 6 months. The optimal EGFR-TKI may be selected by understanding the EGFR compound mutation profile by next generation sequencing and predicting the effect based on the structure. Dacomitinib may be effective choice in afatinib-refractory carcinomatous meningitis harboring G724S mutation. This is the first case report showing that a change to dacomitinib responded to afatinib refractory cancerous meningitis.
    MeSH term(s) Afatinib/therapeutic use ; Carcinoma, Non-Small-Cell Lung/drug therapy ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Non-Small-Cell Lung/pathology ; ErbB Receptors/genetics ; ErbB Receptors/metabolism ; Female ; Humans ; Lung Neoplasms/drug therapy ; Lung Neoplasms/genetics ; Lung Neoplasms/pathology ; Meningeal Carcinomatosis/drug therapy ; Mutation ; Protein Kinase Inhibitors/chemistry ; Protein Kinase Inhibitors/therapeutic use ; Quinazolinones
    Chemical Substances Protein Kinase Inhibitors ; Quinazolinones ; Afatinib (41UD74L59M) ; dacomitinib (5092U85G58) ; EGFR protein, human (EC 2.7.10.1) ; ErbB Receptors (EC 2.7.10.1)
    Language English
    Publishing date 2022-06-03
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 604895-x
    ISSN 1573-0646 ; 0167-6997
    ISSN (online) 1573-0646
    ISSN 0167-6997
    DOI 10.1007/s10637-022-01264-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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