総合医科学研究所 遺伝子発見機構学

Megumi Ozeki

  (尾関 恩)

Profile Information

Affiliation
School of Health Sciences Faculty of Rehabilitation, Fujita Health University
Degree
博士(医学)(藤田保健衛生大学大学院医学研究科)

J-GLOBAL ID
201501006473038166
researchmap Member ID
7000013042

Research Interests

 2

Papers

 38
  • Soichiro Koyama, Megumi Ozeki, Nariko Nakano, Yuki Okochi, Yuko Kijima, Yohei Otaka
    Supportive Care in Cancer, 34(2), Jan 15, 2026  
    Abstract Purpose To evaluate factors influencing the range of motion (ROM) in shoulder flexion and abduction, which are often compromised by postoperative conditions, including pain, soft tissue damage, and muscle weakness, 1 month after breast cancer surgery in patients undergoing inpatient rehabilitation. Methods In this retrospective study, the electronic medical database of a university hospital was searched for patients who underwent inpatient rehabilitation following breast cancer surgery between May 2014 and April 2020. The extracted data included age, sex, affected side, body mass index, number of nodes removed, levels of axillary lymph nodes, type of mastectomy, chemotherapy, radiation therapy, duration of postoperative drain placement, and length of hospital stay after the surgery. Passive shoulder joint ROM was examined before and 1 month after surgery. Multivariable logistic regression was performed to explore the prevalence of and factors associated with the presence of shoulder joint ROM limitations 1 month after surgery. Results This study enrolled 258 patients. A total of 210 participants (81.4%) had shoulder ROM limitation after the surgery. Shoulder flexion and abduction ROM decreased after surgery by an average of 31.3° and 35.9°, respectively. Age, number of nodes removed, and total mastectomy were significantly associated with shoulder joint ROM limitation after surgery. Conclusion Over 80% of participants had reduced shoulder ROM 1 month after surgery, even after inpatient rehabilitation. We identified age, number of nodes removed, and total mastectomy as risk factors for reduced shoulder ROM, providing useful prognostic information regarding the restriction of passive shoulder ROM after breast cancer surgery.
  • Soichiro Koyama, Megumi Ozeki, Nariko Nakano, Yuki Okochi, Yuko Kijima, Yohei Otaka
    Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 34(2) 97-97, Jan 15, 2026  
    PURPOSE: To evaluate factors influencing the range of motion (ROM) in shoulder flexion and abduction, which are often compromised by postoperative conditions, including pain, soft tissue damage, and muscle weakness, 1 month after breast cancer surgery in patients undergoing inpatient rehabilitation. METHODS: In this retrospective study, the electronic medical database of a university hospital was searched for patients who underwent inpatient rehabilitation following breast cancer surgery between May 2014 and April 2020. The extracted data included age, sex, affected side, body mass index, number of nodes removed, levels of axillary lymph nodes, type of mastectomy, chemotherapy, radiation therapy, duration of postoperative drain placement, and length of hospital stay after the surgery. Passive shoulder joint ROM was examined before and 1 month after surgery. Multivariable logistic regression was performed to explore the prevalence of and factors associated with the presence of shoulder joint ROM limitations 1 month after surgery. RESULTS: This study enrolled 258 patients. A total of 210 participants (81.4%) had shoulder ROM limitation after the surgery. Shoulder flexion and abduction ROM decreased after surgery by an average of 31.3° and 35.9°, respectively. Age, number of nodes removed, and total mastectomy were significantly associated with shoulder joint ROM limitation after surgery. CONCLUSION: Over 80% of participants had reduced shoulder ROM 1 month after surgery, even after inpatient rehabilitation. We identified age, number of nodes removed, and total mastectomy as risk factors for reduced shoulder ROM, providing useful prognostic information regarding the restriction of passive shoulder ROM after breast cancer surgery.
  • Koji Mizutani, Yohei Otaka, Masaki Kato, Miwako Hayakawa, Yoshitaka Wada, Takamichi Tohyama, Megumi Ozeki, Hirofumi Maeda, Satoshi Hirano, Seiko Shibata
    Archives of Rehabilitation Research and Clinical Translation, 100307-100307, Oct, 2023  
  • キム・チュウアイ, 臺 美佐子, 清水 三紀子, 大高 洋平, 尾関 恩, 小山 総市朗, 大河内 由紀, 中野 有子, 鈴木 真歩, 宇佐美 瑞希
    国際リンパ浮腫フレームワーク・ジャパン研究協議会学術集会プログラム・抄録集, 12回 35-35, Sep, 2023  
  • Hirotaka Nagura, Hitoshi Kagaya, Yoko Inamoto, Seiko Shibata, Megumi Ozeki, Yohei Otaka
    Journal of oral rehabilitation, 49(6) 627-632, Jun, 2022  
    BACKGROUND: The chin-down posture is often used as a compensatory manoeuvre for patients with dysphagia. This posture presumably involves flexion of the head and/or neck, but this is not clearly defined. OBJECTIVE: This study aimed to assess the effects of head flexion posture in a retrospective study of videofluoroscopic examination of swallowing (VF). METHODS: A total of 73 patients who underwent VF both with and without head flexion posture in the lateral projection were included in the analysis. The head and neck angles at the initiation of the swallowing reflex, penetration-aspiration scale (PAS), nasopharyngeal closure time, stage transition duration, duration of laryngeal closure, time from swallowing reflex to laryngeal closure and to the opening of upper oesophageal sphincter (UES), duration of UES opening, location of the bolus leading edge at swallowing reflex, and bolus transition time were evaluated. RESULTS: The head flexion angle increased (p < 0.001), but the neck flexion angle did not change in the head flexion posture. Moreover, PAS improved (p < 0.001), aspiration was reduced (p < 0.001), the time between the swallowing reflex and the onset of laryngeal closure was shortened (p = 0.006), and the leading edge of the bolus at swallowing reflex became shallower (p = 0.004) in the head flexion posture. Other parameters did not significantly change. CONCLUSION: The head flexion posture resulted in earlier laryngeal closure and a shallower position of the leading bolus edge at swallowing reflex, resulting in PAS improvement and decreased aspiration.

Misc.

 123

Books and Other Publications

 1

Presentations

 99

Teaching Experience

 7
  • リハビリ医学  (藤田医科大学医学部)
  • 老年学  (藤田医科大学保健衛生学部リハビリテーション学科)
  • 整形外科学  (藤田医科大学保健衛生学部リハビリテーション学科)
  • 内科学  (藤田医科大学保健衛生学部リハビリテーション学科)
  • 一般臨床医学  (藤田医科大学保健衛生学部リハビリテーション学科)

Research Projects

 2

Social Activities

 5