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所属 |
附属病院 第二外科 |
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生年 |
1982年 |
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研究室住所 |
秋田市本道1-1-1 |
職務経歴（学内） 【 表示 ／ 非表示 】
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2021年04月-継続中
秋田大学 附属病院 第二外科 講師
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2019年04月-2021年03月
秋田大学 大学院医学系研究科（医学専攻等） 医学専攻 腫瘍制御医学系 助教
研究経歴 【 表示 ／ 非表示 】
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非小細胞肺がん術後補助化学療法としての カルボプラチン+ゲムシタビンの効果と安全性に関しての検討
（選択しない）
研究期間：
2019年04月-継続中研究態様：機関内共同研究
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Cyclin B2 mRNAの発現と非小細胞肺癌予後との関連性の検討
（選択しない）
研究期間：
2013年04月-2014年03月研究態様：機関内共同研究
学位論文 【 表示 ／ 非表示 】
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Strong expression of cyclin B2 mRNA correlates with a poor prognosis in patients with non-small cell lung cancer
Takashima S, Saito H, Takahashi N, Imai K, Kudo S, Atari M, Saito Y, Motoyama S, Minamiya Y
Tumor Biology 35 ( 5 ) 4257 - 4265 2014年03月 [査読有り]
国内共著
研究等業績 【 表示 ／ 非表示 】
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Imai K.
Cancer Imaging ( Cancer Imaging ) 24 ( 1 ) 69 - 69 2024年12月
研究論文（学術雑誌）
BACKGROUND: Accurate clinical staging is crucial for selection of optimal oncological treatment strategies in non-small cell lung cancer (NSCLC). Although brain MRI, bone scintigraphy and whole-body PET/CT play important roles in detecting distant metastases, there is a lack of evidence regarding the indication for metastatic staging in early NSCLCs, especially ground-grass nodules (GGNs). Our aim was to determine whether checking for distant metastasis is required in cases of clinical T1N0 GGN. METHODS: This was a retrospective study of initial staging using imaging tests in patients who had undergone complete surgical R0 resection for clinical T1N0 Stage IA NSCLC. RESULTS: A total of 273 patients with cT1N0 GGNs (n = 183) or cT1N0 solid tumors (STs, n = 90) were deemed eligible. No cases of distant metastasis were detected on initial routine imaging evaluations. Among all cT1N0M0 cases, there were 191 incidental findings on various modalities (128 in the GGN). Most frequently detected on brain MRI was cerebral leukoaraiosis, which was found in 98/273 (35.9%) patients, while cerebral infarction was detected in 12/273 (4.4%) patients. Treatable neoplasms, including brain meningioma and thyroid, gastric, renal and colon cancers were also detected on PET/CT (and/or MRI). Among those, 19 patients were diagnosed with a treatable disease, including other-site cancers curable with surgery. CONCLUSIONS: Extensive staging (MRI, scintigraphy, PET/CT etc.) for distant metastasis is not required for patients diagnosed with clinical T1N0 GGNs, though various imaging modalities revealed the presence of adventitious diseases with the potential to increase surgical risks, lead to separate management, and worsen patient outcomes, especially in elderly patients. If clinically feasible, it could be considered to complement staging with whole-body procedures including PET/CT.
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A case of right middle lobectomy for primary lung cancer in a patient with heterotaxy syndrome.
Ryo Demura, Kazuhiro Imai, Shinogu Takashima, Nobuyasu Kurihara, Shoji Kuriyama, Haruka Suzuki, Yuzu Harata, Yoshihiro Minamiya
General Thoracic and Cardiovascular Surgery Cases 3 ( 1 ) 52 - 52 2024年11月
研究論文（学術雑誌）
BACKGROUND: Anatomical abnormalities in the pulmonary vessels have long aroused great interest among thoracic surgeons, and numerous variations of pulmonary vessels have been reported. Heterotaxy syndrome is an anatomical abnormality in which typically asymmetrical organs, including the lungs, develop symmetrically. We report the case of a 71-year-old man with heterotaxy syndrome undergoing radical lobectomy in the treatment of non-small cell lung cancer. CASE PRESENTATION: Computed tomography (CT) revealed an irregular nodule 25 mm in diameter in the right middle lobe. Two months later, at his first visit to our University Hospital, CT revealed a rapidly growing tumor 60 mm in diameter. In addition, three-dimensional (3D) CT revealed the upper and middle lobar bronchi forming a common trunk with the mediastinal type of the right pulmonary artery (PA). The patient underwent video-assisted right middle lobectomy + systematic complete hilar and mediastinal lymph node dissection. The interlobar fissure between the right upper and middle lobes was incomplete, and the common trunk formed by the upper-middle bronchus emerged from an area between the right PA (A1+3) and the right superior pulmonary vein. CONCLUSION: The finding of A4+5 branching from the right main PA and descending posterior to the right upper-middle bronchus, which formed a common trunk, resembled a mirror image of the normal left lung. To our knowledge, a common trunk with the mediastinal type of the right PA has never been reported during video-assisted right middle lobectomy. In patients with heterotaxy syndrome, 3D-CT to preoperatively understand their anatomy is essential.
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Kuriyama S.
Thoracic Cancer ( Thoracic Cancer ) 15 ( 21 ) 1681 - 1684 2024年07月
研究論文（学術雑誌）
When a mass occurs at the staple line following lung resection, it can be difficult to distinguish between local cancer recurrence and granuloma. We present a case of a staple-line granuloma with 18F-fluorodeoxyglucose-positron emission tomography uptake and elevated serum carbohydrate antigen 19-9 (CA19-9) in a patient with ovarian cancer lung metastasis. After granuloma resection, serum CA19-9 levels normalized, and CA19-9 positive cells were identified in the resected tumor. Therefore, serum CA19-9 elevation does not rule out a staple-line granuloma. Whereas granulomas on computed tomography (CT) scans tend to show smooth shadows along the staple line unilaterally, detailed CT evaluation may help diagnostic differentiation. Differentiation based on imaging and tumor markers has limitations. However, core needle biopsy has the risk of misdiagnosis and tumor cell dissemination, therefore surgical resection should be considered when comprehensive findings indicate a potential recurrence.
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Tracheal bifurcation repair for blunt thoracic trauma in a patient with COVID-19.
Shoji Kuriyama, Kazuhiro Imai, Kasumi Tozawa, Shinogu Takashima, Ryo Demura, Haruka Suzuki, Yuzu Harata, Tatsuki Fujibayashi, Sumire Shibano, Yoshihiro Minamiya
Surgical case reports 9 ( 1 ) 108 - 108 2023年06月
研究論文（学術雑誌）
BACKGROUND: Tracheobronchial injury (TBI) is a rare but potentially life-threatening trauma that requires prompt diagnosis and treatment. We present a case in which a patient with COVID-19 infection was successfully treated for a TBI through surgical repair and intensive care with extracorporeal membrane oxygenation (ECMO) support. CASE PRESENTATION: This is the case of a 31-year-old man transported to a peripheral hospital following a car crash. Tracheal intubation was performed for severe hypoxia and subcutaneous emphysema. Chest computed tomography showed bilateral lung contusion, hemopneumothorax, and penetration of the endotracheal tube beyond the tracheal bifurcation. A TBI was suspected; moreover, his COVID-19 polymerase chain reaction screening test was positive. Requiring emergency surgery, the patient was transferred to a private negative pressure room in our intensive care unit. Due to persistent hypoxia and in preparation for repair, the patient was started on veno-venous ECMO. With ECMO support, tracheobronchial injury repair was performed without intraoperative ventilation. In accordance with the surgery manual for COVID-19 patients in our hospital, all medical staff who treated this patient used personal protective equipment. Partial transection of the tracheal bifurcation membranous wall was detected and repaired using 4-0 monofilament absorbable sutures. The patient was discharged on the 29th postoperative day without postoperative complications. CONCLUSIONS: ECMO support for traumatic TBI in this patient with COVID-19 reduced mortality risk while preventing aerosol exposure to the virus.
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Inferior pulmonary ligament division during left upper lobectomy causes pulmonary dysfunction.
Shoji Kuriyama, Kazuhiro Imai, Hajime Saito, Shinogu Takashima, Nobuyasu Kurihara, Ryo Demura, Haruka Suzuki, Yuzu Harata, Yusuke Sato, Katsutoshi Nakayama, Kyoko Nomura, Yoshihiro Minamiya
Interdisciplinary cardiovascular and thoracic surgery ( Interdisciplinary Cardiovascular and Thoracic Surgery ) 36 ( 5 ) 2023年05月
研究論文（学術雑誌）
OBJECTIVES: The division of inferior pulmonary ligament (IPL) during upper lobectomy (UL) was believed to be mandatory to dilate the remaining lung sufficiently. However, the benefits, especially postoperative pulmonary function, remain controversial. This study aimed to evaluate whether IPL division leads to pulmonary dysfunction. METHODS: This retrospective study included 213 patients who underwent UL between 2005 and 2018. They were categorized into an IPL division group (D group, n = 106) and a preservation group (P group, n = 107). Postoperative dead space at the lung apex, pulmonary function and complications were assessed using chest X-rays and spirometry. Changes in bronchial angle, cross-sectional area and circumference of the narrowed bronchus on the excised side were measured on three-dimensional computed tomography. RESULTS: There was no significant difference in the postoperative complication rate, the dead space area, forced vital capacity (FVC), or forced expiratory volume in 1 s (FEV1) between the 2 groups after right UL (FVC; P = 0.838, FEV1; P = 0.693). By contrast, after left UL pulmonary function was significantly better in the P than in the D group (FVC; P = 0.038, FEV1; P = 0.027). Changes in bronchial angle did not significantly differ between the 2 groups. The narrowed bronchus's cross-sectional area (P = 0.021) and circumference (P = 0.009) were significantly smaller in the D group than in the P group after left UL. CONCLUSIONS: IPL division during left UL caused postoperative pulmonary dysfunction and airflow limitation due to bronchial kinking. IPL preservation may have a beneficial impact on postoperative pulmonary function.
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Kudo C.
Cancers ( Cancers ) 17 ( 3 ) 2025年02月
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Extracorporeal Membrane Oxygenation-Assisted Thoracic Surgery: A Series of 10 Cases
Harata Yuzu, Imai Kazuhiro, Takashima Shinogu, Kuriyama Shoji, Iwai Hidenobu, Suzuki Haruka, Demura Ryo, Shibano Sumire, Minamiya Yoshihiro
Surgical Case Reports ( 一般社団法人 日本外科学会 ) 11 ( 1 ) n/a 2025年
<p><b>INTRODUCTION:</b> Extracorporeal membrane oxygenation (ECMO) is a type of extracorporeal circulation used to divert blood from and deliver blood to peripheral blood vessels. Recently, the use of ECMO has been reported in various non-transplant surgeries. Particularly in tracheal surgeries, ECMO provides an unobstructed surgical field and enables safe induction of general anesthesia in difficult intubation cases. Here, we report on 10 cases of thoracic surgery in which ECMO was employed at our institution.</p><p><b>CASE PRESENTATION:</b> These 10 cases comprise 4 tracheal cancer surgeries, 2 lung cancer surgeries, and 1 case each of surgery for thyroid cancer, mediastinal cancer, tracheomalacia, and tracheobronchial injury. Veno-venous (VV)-ECMO is most often selected, but veno-arterial (VA)-ECMO is chosen when recirculation with VV-ECMO is unacceptable, when pulmonary artery bleeding needs to be controlled, or when cardiac support is necessary. Among the 10 presented cases, VV-ECMO was used in 8, while VA-ECMO was employed in 2. Three of these cases involved ECMO bailout due to dyspnea caused by airway stenosis. Six of the patients did not receive heparin maintenance. Of those, 1 was maintained on nafamostat mesilate, 2 were maintained on nafamostat mesilate after receiving a single dose of heparin, and 3 received only a single dose of heparin. In none of those cases did ECMO fail to maintain flow due to thrombus formation. A postoperative hemothorax occurred as one of the ECMO-related complications in Case 4. There were no perioperative cardiopulmonary complications, in-hospital deaths, or deaths within 30 days after surgery. One patient died from metastatic recurrence of non-small cell lung cancer 5 months after surgery, another from progression of disease in mediastinal anaplastic cancer 4 months after surgery, and the 3rd from upper gastrointestinal bleeding 2 years after surgery. The other 7 patients remain alive.</p><p><b>CONCLUSIONS:</b> ECMO is useful in tracheal surgery and in cases where intubation is difficult or dangerous, because it facilitates safe and accurate surgery. We also believe that individualized anticoagulant strategies can be safely implemented.</p>
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Proximal ligation technique prevents thrombus formation in the pulmonary vein stump after lobectomy
Watanabe S.N.
Surgery Today ( Surgery Today ) 54 ( 8 ) 839 - 846 2024年08月
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再生検が有用であった再発胸腺上皮性腫瘍の経験
鈴木 陽香, 今井 一博, 高嶋 祉之具, 栗山 章司, 岩井 英頌, 出村 遼, 原田 柚子, 柴野 菫, 南谷 佳弘, 南條 博
日本呼吸器外科学会雑誌 ( (一社)日本呼吸器外科学会 ) 38 ( 3 ) MO55 - 4 2024年04月
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再発病変への生検が有用であった多発肺癌の経験
柴野 菫, 高嶋 祉之具, 今井 一博, 栗山 章司, 出村 遼, 岩井 英頌, 鈴木 陽香, 原田 柚子, 南谷 佳弘
日本呼吸器外科学会雑誌 ( (一社)日本呼吸器外科学会 ) 38 ( 3 ) MO9 - 1 2024年04月