1.Impact of car seat recline angle on global spinal alignment and seat belt positioning: a prospective observational study in Japan
Norihiro NISHIDA ; Tomohiro IZUMIYAMA ; Ryusuke ASAHI ; Hidenori SUZUKI ; Masahiro KOIKE ; Masahiro FUNABA ; Kazuhiro FUJIMOTO ; Yusuke ICHIHARA ; Yogesh KUMARAN ; Hiroshi HAMANO ; Shigeru SUGIMOTO ; Takashi SAKAI
Asian Spine Journal 2026;20(2):283-293
Methods:
Lateral radiographs were obtained from 100 healthy adults in standing and seated postures at 25°, 35°, and 45° recline angles. Spinal parameters (cervical lordosis, thoracic kyphosis, thoracolumbar kyphosis, lumbar lordosis, sacral slope, pelvic tilt, and T1 spinopelvic inclination) and seat belt metrics (X-value, Z-value, and lap belt angle) were measured. Multivariate regression was used to assess associations with sex, age, height, and body mass index (BMI).
Results:
Reclining reduced cervical/lumbar lordosis and sacral slope, while thoracic kyphosis and pelvic tilt increased. Higher BMI was associated with a cranially shifted and more horizontal lap belt. Taller individuals showed greater T1 spinopelvic inclination and pelvic parameters. Females exhibited more pronounced thoracic kyphosis and pelvic retroversion across reclining angles.
Conclusions
Car seat recline significantly alters spinal alignment and seat belt positioning, with changes influenced by age, height, and BMI. These findings support ergonomic improvements in seat design and may inform surgical planning for ASD.
2.A multicenter comparative study of endoscopic ultrasound-guided fine-needle biopsy using a Franseen needle versus conventional endoscopic ultrasound-guided fine-needle aspiration to evaluate microsatellite instability in patients with unresectable pancreatic cancer
Tadayuki TAKAGI ; Mitsuru SUGIMOTO ; Hidemichi IMAMURA ; Yosuke TAKAHATA ; Yuki NAKAJIMA ; Rei SUZUKI ; Naoki KONNO ; Hiroyuki ASAMA ; Yuki SATO ; Hiroki IRIE ; Jun NAKAMURA ; Mika TAKASUMI ; Minami HASHIMOTO ; Tsunetaka KATO ; Ryoichiro KOBASHI ; Yuko HASHIMOTO ; Goro SHIBUKAWA ; Shigeru MARUBASHI ; Takuto HIKICHI ; Hiromasa OHIRA
Clinical Endoscopy 2023;56(1):107-113
Background/Aims:
Immune checkpoint blockade has recently been reported to be effective in treating microsatellite instability (MSI)-high tumors. Therefore, sufficient sampling of histological specimens is necessary in cases of unresectable pancreatic cancer (UR-PC). This multicenter study investigated the efficacy of endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) using a Franseen needle for MSI evaluation in patients with UR-PC.
Methods:
A total of 89 patients with UR-PC who underwent endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) or EUS-FNB using 22-G needles at three hospitals in Japan (2018–2021) were enrolled. Fifty-six of these patients (FNB 23 and FNA 33) were followed up or evaluated for MSI. Patient characteristics, UR-PC data, and procedural outcomes were compared between patients who underwent EUS-FNB and those who underwent EUS-FNA.
Results:
No significant difference in terms of sufficient tissue acquisition for histology was observed between patients who underwent EUS-FNB and those who underwent EUS-FNA. MSI evaluation was possible significantly more with tissue samples obtained using EUS-FNB than with tissue samples obtained using EUS-FNA (82.6% [19/23] vs. 45.5% [15/33], respectively; p<0.01). In the multivariate analysis, EUS-FNB was the only significant factor influencing the possibility of MSI evaluation.
Conclusions
EUS-FNB using a Franseen needle is desirable for ensuring sufficient tissue acquisition for MSI evaluation.
3.A Discussion on the Text of the Yang Disease Stage in Shokan-ron. Experience of the Use of Dai-joki-to for Fisher Syndrome.
Seiichiro SUGIMOTO ; Shigeru MATSUKURA
Kampo Medicine 2001;52(2):217-221
Fisher syndrome is characterized by ophthalmoplegia, ataxia and areflexia after preceding infection. The ophthalmoplegic symptom is described in a volume of Yomeibyo of the Shokan Ron, the classic Chinese encyclopedia of medical treatment. The Shokan Ron recommends Dai-joki-to as a treatment for this symptom. Accordingly, we administered Dai-joki-to to one patient diagnosed with atypical Fisher syndrome. The result was a prompt reduction of the ophthalmoplegic symptom in the patient. As Fisher syndrome is not a critical disease, Dai-joki-to administration should be considered as an alternative treatment to plasmapheresis.


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