Updated on 2026/04/17

写真a

 
SUGAI Yu
 
Organization
University Medical and Dental Hospital Pediatric Surgery Assistant Professor
Title
Assistant Professor
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Research History

  • Niigata University   Pediatric Surgery, University Medical and Dental Hospital   Assistant Professor

    2025.4

Education

  • Niigata University   Faculty of Medicine   School of Medicine

    2008.4 - 2014.3

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Papers

  • Identification of clinical and laboratory factors predictive of long term-native liver survival after Kasai portoenterostomy

    Takashi Kobayashi, Yoshiaki Kinoshita, Toshiyuki Ohyama, Yuhki Arai, Yu Sugai, Koichi Saito, Yu Hamasaki

    JOURNAL OF PEDIATRIC SURGERY OPEN   11   2025.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.yjpso.2025.100216

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  • Nuss法術後に両側緊張性気胸を発症した1例

    菅井 佑, 三宅 啓, 津久井 崇文, 矢本 真也, 野村 明芳, 合田 陽祐, 山城 優太朗, 福本 弘二

    日本小児外科学会雑誌   2025.6

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  • Mesenteric Vessel-Preserving Laparoscopic Surgery for Pediatric Unicentric Castleman Disease in the Transverse Mesocolon.

    Takashi Kobayashi, Yoshiaki Kinoshita, Junkichi Takemoto, Yuhki Arai, Yu Sugai, Koichi Saito, Shoichi Takano

    Surgical case reports   11 ( 1 )   2025

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.70352/scrj.cr.25-0307

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  • Laparoscopic Subtotal Splenectomy in Pediatric Patients With Hematologic Disorders: A Case Series and Operative Technique.

    Masaya Yamoto, Yu Sugai, Yuri Nemoto, Yousuke Goda, Yuri Nishiya, Akiyoshi Nomura, Hiromu Miyake, Yutaro Yamashiro, Koji Fukumoto, Kenichiro Watanabe

    Asian journal of endoscopic surgery   18 ( 1 )   e70146   2025

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1111/ases.70146

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  • Features of recurrence and contralateral metachronous inguinal hernia (CMIH) in the patients underwent laparoscopic percutaneous extraperitoneal closure (LPEC) for pediatric inguinal hernia. International journal

    Hiromu Miyake, Masaya Yamoto, Akiyoshi Nomura, Yu Sugai, Yousuke Gohda, Yutaro Yamashiro, Koji Fukumoto

    Pediatric surgery international   40 ( 1 )   276 - 276   2024.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s00383-024-05859-x

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  • Laparoscopic resection for retroperitoneum ganglioneuroma with Supine hypotension syndrome.

    Yu Sugai, Masaya Yamoto, Juma Obayashi, Takafumi Tsukui, Akiyoshi Nomura, Hiromu Miyake, Koji Fukumoto, Sung-Hae Kim, Daijiro Sato, Hideto Iwafuchi

    Surgical case reports   10 ( 1 )   192 - 192   2024.8

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1186/s40792-024-01992-w

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  • 【再手術の戦略と実際】先天性胆道拡張症に対する再手術 その意義と適応

    三宅 啓, 矢本 真也, 野村 明芳, 菅井 佑, 合田 陽祐, 山城 優太朗, 福本 弘二

    小児外科   56 ( 7 )   704 - 708   2024.7

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  • A CASE OF A HUGE CERVICAL AND MEDIASTINAL LIPOBLASTOMA

    Yuhki Arai, Yu Hamasaki, Yu Sugai, Toshiyuki Ohyama, Yoshiaki Takahashi, Takashi Kobayashi, Takeshi Takahashi, Ai Sugimoto, Takashi Ariizumi, Yoshiaki Kinoshita

    PEDIATRIC BLOOD & CANCER   71   S60 - S60   2024.1

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  • Early and late outcomes of congenital biliary dilatation in pediatric patients. International journal

    Yoshiaki Takahashi, Takashi Kobayashi, Yoshiaki Kinoshita, Yuhki Arai, Toshiyuki Ohyama, Naoki Yokota, Yu Sugai, Shoichi Takano

    Pediatrics international : official journal of the Japan Pediatric Society   66 ( 1 )   e15712   2024

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1111/ped.15712

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  • A rare case of pyosalpinx in adolescent girl with Hirschsprung's disease who underwent transvaginal ultrasound-guided drainage.

    Yu Sugai, Yoshiaki Kinoshita, Takashi Kobayashi, Yoshiaki Takahashi, Yuhki Arai, Toshiyuki Ohyama, Naoki Yokota, Shoichi Takano, Akiko Kobayashi

    Surgical case reports   9 ( 1 )   74 - 74   2023.5

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    DOI： 10.1186/s40792-023-01657-0

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  • A rare case of eosinophilic gastrointestinal disorders with short bowel syndrome after strangulated bowel obstruction.

    Yuhki Arai, Yoshiaki Kinoshita, Takashi Kobayashi, Yoshiaki Takahashi, Toshiyuki Ohyama, Naoki Yokota, Yu Sugai, Shoichi Takano, Yu Hamasaki, Utako Kaneko, Satoshi Kanada

    Surgical case reports   8 ( 1 )   168 - 168   2022.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1186/s40792-022-01527-1

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  • The usefulness of OK-432 for the treatment of postoperative chylothorax in a low-birth-weight infant with trisomy 18. International journal

    Yoshiaki Takahashi, Yoshiaki Kinoshita, Takashi Kobayashi, Yuhki Arai, Toshiyuki Ohyama, Naoki Yokota, Koichi Saito, Yu Sugai, Shoichi Takano

    Clinical case reports   10 ( 5 )   e05844   2022.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/ccr3.5844

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  • Management of refractory chylothorax in the neonatal intensive care unit: A 22-year experience. International journal

    Yoshiaki Takahashi, Yoshiaki Kinoshita, Takashi Kobayashi, Yuhki Arai, Toshiyuki Ohyama, Naoki Yokota, Koichi Saito, Yu Sugai, Shoichi Takano

    Pediatrics international : official journal of the Japan Pediatric Society   64 ( 1 )   e15043   2022.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1111/ped.15043

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  • The Usefulness of Protocol for Central Venous Catheter Placement in Children

    Yuhki Arai, Yoshiaki Kinoshita, Takashi Kobayashi, Toshiyuki Ohyama, Naoki Yokota, Yu Sugai, Shoichi Takano

    PEDIATRIC BLOOD & CANCER   68   2021.11

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  • 内視鏡的バルーン拡張術後にperoral endoscopic myotomy(POEM)を施行した小児食道アカラシアの1例

    菅井 佑, 飯沼 泰史, 平山 裕, 仲谷 健吾, 愛甲 崇人, 高城 翔太郎

    日本小児外科学会雑誌   2021.6

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  • 急速に増大した小児巨大肝嚢胞に対し腹腔鏡下開窓術を施行した1例

    菅井 佑, 飯沼 泰史, 平山 裕, 愛甲 崇人, 黒沢 大樹

    日本小児外科学会雑誌   2021.4

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  • A rare case of neonatal colonic obstruction caused by a solitary intestinal tumor.

    Yu Sugai, Yutaka Hirayama, Yasushi Iinuma, Kengo Nakaya, Takato Aikou, Shotaro Taki, Hideki Hashidate, Yoshiaki Kinoshita

    Surgical case reports   7 ( 1 )   26 - 26   2021.1

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1186/s40792-021-01107-9

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  • A Case of a Two-Month-Old Boy Diagnosed with Infantile Crohn's Disease Based on an Atypical Perianal Lesion. International journal

    Kengo Nakaya, Yasushi Iinuma, Yutaka Hirayama, Yu Sugai, Shotaro Taki

    Case reports in pediatrics   2020   8832856 - 8832856   2020

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1155/2020/8832856

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  • Gastric adenosquamous carcinoma producing granulocyte-colony stimulating factor: a case of a rare malignancy.

    Kazuki Moro, Masayuki Nagahashi, Tetsuya Naito, Yu Nagai, Tomohiro Katada, Masahiro Minagawa, Jun Hasegawa, Tatsuo Tani, Naohiro Shimakage, Hiroyuki Usuda, Emmanuel Gabriel, Tsutomu Kawaguchi, Kazuaki Takabe, Toshifumi Wakai

    Surgical case reports   3 ( 1 )   67 - 67   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    BACKGROUND: A gastric adenosquamous carcinoma (ASC) that produces granulocyte-colony stimulating factor (G-CSF) is an uncommon malignancy with a poor prognosis. Due to the rarity of this lesion, a standard treatment for the disease has not been established. CASE PRESENTATION: We describe a case of a 66-year-old male with a G-CSF-producing gastric ASC who presented with severe anemia and leukocytosis. A radical resection was performed, followed by a course of adjuvant chemotherapy. Histopathologic examination revealed that the tumor consisted of areas of both squamous cell carcinoma and adenocarcinoma. Immunohistochemical staining with an anti-G-CSF antibody was also positive. He was started on adjuvant capecitabine and oxaliplatin (CapeOX) 6 weeks after surgery. The patient stopped treatment after 3 months due to his own preference. Eight months following surgery, the patient was found to have diffuse lymph node, liver, and peritoneal metastases. CONCLUSIONS: G-CSF-producing gastric ASC is a rare and aggressive tumor. Because patients are usually diagnosed at an advanced stage, multidisciplinary evaluation and innovative treatments are needed. The rarity of this disease, with its aggressive features, poses a significant challenge in its treatment. In this brief case report, we summarize the management and outcomes of G-CSF-producing gastric ASC.

    DOI： 10.1186/s40792-017-0338-7

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  • [Usefulness of Palliative Gastrojejunal Bypass Surgery].

    Yoshifumi Hashimoto, Satoshi Suzuki, Kouei Nihei, Masahiro Ohtaki, Kaoru Sakamoto, Ryoma Yagi, Tsubasa Shironomae, Yu Nagai, Takeshi Mishina, Hitoshi Kameyama, Hiroshi Ichikawa, Kumiko Tatsuda, Takashi Kobayashi, Shin-ichi Kosugi, Toshifumi Wakai

    Gan to kagaku ryoho. Cancer & chemotherapy   42 ( 12 )   1559 - 60   2015.11

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    OBJECTIVES: The aim of this study was to evaluate the usefulness of gastrojejunal bypass surgery performed in patients presenting with upper gastrointestinal tract obstruction due to unresectable advanced cancer. SUBJECTS AND METHODS: The subjects were 21 patients who underwent gastrojejunal bypass surgery at our division between 2010 and 2014 for symptom palliation. We retrospectively evaluated the operative outcomes, whether chemotherapy was administered, the oral ingestion period, and survival time. RESULTS: The median postoperative day of starting oral ingestion was 6 (range: 2-42), and the median period from decreased oral ingestion to death was 4 (range: 0-26) days. Twelve patients (57%) were discharged. Postoperative chemotherapy was prescribed to all the 9 patients who desired treatment. The median duration of oral digestion time was 61 days, and the median overall survival time was 92 days. CONCLUSION: Gastrojejunal bypass surgery is found to have the potential to not only make relatively long-term oral ingestion possible, but also broaden available treatment options, such as home care or chemotherapy, thereby contributing to improved quality of life.

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  • The area and attachment abnormalities of the gubernaculum in patients with undescended testes in comparison with those with retractile testes. International journal

    Masayuki Kubota, Kengo Nakaya, Yuhki Arai, Toshiyuki Ohyama, Naoki Yokota, Yu Nagai

    Pediatric surgery international   30 ( 11 )   1149 - 54   2014.11

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    PURPOSE: In order to evaluate the gubernaculum (GN) abnormalities quantitatively in patients with undescended testes (UDT), the area and attachment site of the gubernaculum were evaluated. PATIENTS AND METHODS: Sixty-seven testes from 61 patients with an undescended testis treated in the past 11 years at our institution were examined. Using intraoperative photographs or DVDs, the area of the GN inside the processus vaginalis was measured, and the ratio to that of the testis was determined. When the GN was attached to the vas deferens, the GN distance from the testis was also measured, and the ratio to that of the transverse length of the testis (deviation index) was calculated. Reference values were obtained from 23 testes from 15 patients with mobile testes. RESULTS: In cases with mobile testes, the GN attached to the bottom of the testis, and involved the lower pole of the epididymis. Even though the GN was attached to the bottom of the testis in 43 testes in the UDT patients (64 %), the GN was found to be elongated. The mean GN area ratio was 1.58 (1SD, 0.6) in the UDT cases, in comparison to 0.47 (0.2) in the cases with mobile testes. The GN was attached to the vas deferens in 24 testes (36 %). The deviation index was 1.34 (1.0), but the GN area ratio of these cases was 1.56 (0.7), which was similar to that of the GN attached to the bottom of the testis. CONCLUSION: The present study revealed that an increase in the GN area ratio was the most common imaging abnormality in cases with UDT.

    DOI： 10.1007/s00383-014-3597-4

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