1.Increased Phase Angle Reflects Improvement in Activities of Daily Living and Muscle Health in Post-stroke Rehabilitation
Kouki YONEDA ; Yoshihiro YOSHIMURA ; Hidetaka WAKABAYASHI ; Ayaka MATSUMOTO ; Fumihiko NAGANO ; Sayuri SHIMAZU ; Yoshifumi KIDO ; Takahiro BISE ; Takenori HAMADA ; Ai SHIRAISHI
Annals of Geriatric Medicine and Research 2026;30(1):62-69
Background:
Phase angle (PhA) reflects cellular integrity and muscle quality. However, evidence is limited regarding whether an increase in PhA is associated with improvements in activities of daily living (ADL) and skeletal muscle mass. This study aimed to investigate the association between change in PhA and prognosis in terms of ADL and skeletal muscle mass in post-stroke patients undergoing rehabilitation.
Methods:
This retrospective cohort study was conducted at a convalescent rehabilitation hospital in Japan. Patients with a PhA at admission below the cutoff values (4.76° for male and 4.11° for female) were included. Patients were categorized into a PhA-increase group (>0) and a non-increase group (≤0). Outcomes included the Functional Independence Measure (FIM)-motor score and skeletal muscle mass index (SMI) at discharge. Multivariate regression was used to assess associations.
Results:
A total of 253 patients were included (mean age 78.0±10.9 years; 51% females). The median PhA at admission was 3.70° (interquartile range [IQR], 3.20–4.10), and the median change during hospitalization was 0.00° (IQR, -0.20– 0.30). Of these, 119 patients had increased PhA and 134 did not. Change in PhA was independently associated with higher FIM-motor scores (β=0.078, p=0.040) and greater SMI (β=0.454, p<0.001) at discharge.
Conclusions
In post-stroke patients, an increase in PhA during hospitalization was associated with better functional and muscular outcomes. PhA may therefore serve as a valuable biomarker for assessing the efficacy of rehabilitation.
2.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
3.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
4.Follow-up computed tomography can prevent stent migration after endoscopic ultrasound-guided hepaticogastrostomy
Yasuhiro KOMORI ; Akihisa OHNO ; Nao FUJIMORI ; Kazuhide MATSUMOTO ; Keijiro UEDA ; Kazuki TAKEISHI ; Tomoharu YOSHIZUMI ; Yoshihiro OGAWA
International Journal of Gastrointestinal Intervention 2025;14(1):35-38
A 61-year-old man with obstructive jaundice caused by distal bile duct cancer recurrence was admitted to our hospital. As treatment, we performed endoscopic ultrasound-guided hepaticogastrostomy and placed a self-expanding metal stent. Computed tomography was performed immediately after the procedure to ensure proper stent placement. Although repeat imaging the next day revealed that the stent on the hepaticogastrostomy route had shortened, the stent on the gastric side maintained sufficient length. However, 11 days after the procedure, the stomach-to-liver distance had increased, and the stent on the gastric side was significantly shortened. Endoscopic imaging revealed that the stent had almost migrated, and we added a fully covered self-expanding metal stent into the previous metallic stent via the hepaticogastrostomy route. The patient was discharged 19 days after the initial procedure without complications. Computed tomography performed 40 days after the hepaticogastrostomy revealed that the initial stent had migrated into the abdominal cavity, but the second stent was in an appropriate position. In conclusion, repeated monitoring by computed tomography after hepaticogastrostomy procedure may be an effective method for preventing stent migration in high-risk cases.
5.Group Chair-Stand Exercise and Cognitive Recovery in Sarcopenic Stroke Patients
Fumihiko NAGANO ; Yoshihiro YOSHIMURA ; Ayaka MATSUMOTO ; Yoichi SATO ; Takafumi ABE ; Sayuri SHIMAZU ; Ai SHIRAISHI ; Takahiro BISE ; Yoshifumi KIDO ; Takenori HAMADA ; Aomi KUZUHARA ; Kouki YONEDA ; Kenichiro MAEKAWA
Annals of Geriatric Medicine and Research 2025;29(4):477-486
Background:
Evidence on the effectiveness of exercise for cognitive recovery in patients with sarcopenia is limited. This study examined the association between group-based chair-stand exercise and cognitive improvement during convalescent rehabilitation.
Methods:
This retrospective cohort study included stroke patients with sarcopenia and impaired cognitive level, defined as a Functional Independence Measure (FIM)-cognitive score ≤23, admitted between 2016 and 2023. All patients received standard rehabilitation and participated in group-based chair-stand exercise twice daily. The frequency of exercise during hospitalization was recorded. The primary outcome was FIM-cognitive score at discharge. Secondary outcomes were handgrip strength (HG) and FIM-motor score. Multivariate linear regression analysis was used to examine associations between exercise frequency and outcomes, adjusting for potential confounders.
Results:
Of the 1,220 patients admitted, 273 sarcopenic stroke patients with reduced cognitive level (mean age 80 years; 48% male) were included in the final analysis dataset; the median frequency of performing chair-stand exercise per day was 43 (interquartile range, 20–71). Higher exercise frequency was independently associated with better FIM-cognitive score at discharge (β=0.217, p<0.001), greater HG (β=0.146, p=0.008), and improved FIM-motor score (β=0.295, p<0.001).
Conclusion
Frequent participation in group-based chair-stand exercise was associated with improvements in cognitive and physical function in sarcopenic stroke patients. Incorporating simple, repetitive resistance exercises into rehabilitation programs may enhance recovery outcomes in this vulnerable population.
6.Association of Phase Angle Dynamics with Sarcopenia and Activities of Daily Living in Osteoporotic Fracture Patients
Yusuke ITO ; Yoshihiro YOSHIMURA ; Fumihiko NAGANO ; Ayaka MATSUMOTO ; Hidetaka WAKABAYASHI
Annals of Geriatric Medicine and Research 2024;28(2):192-200
Background:
This study aimed to determine whether changes in phase angle during rehabilitation are associated with clinical outcomes such as activities of daily living (ADL), skeletal muscle mass index (SMI), and strength in patients with osteoporotic fractures.
Methods:
This retrospective observational study included patients with osteoporotic fractures admitted to convalescent rehabilitation wards. Changes in phase angle were defined as the difference between the phase angle values at discharge and on admission. The primary outcome was the Functional Independence Measure motor (FIM-motor) score at discharge. The secondary outcomes were SMI and handgrip strength at discharge. We used multivariate analysis to adjust for confounding factors and examine the association between changes in the phase angle and outcomes.
Results:
We analyzed a total of 115 patients (97 women, mean age of 81.0±10.0 years), with a median change in phase angle of 0° during hospitalization. We observed increased phase angles in 49 patients (43%), with a median increase of 0.2°. Multiple regression analysis showed that changes in phase angle were independently associated with FIM-motor score at discharge (β=0.238, p=0.027). Changes in phase angle were not significantly associated with SMI (β=0.059, p=0.599) or handgrip strength (β=-0.032, p=0.773) at discharge.
Conclusion
An increased phase angle during rehabilitation was positively associated with ADL improvement in patients with osteoporotic fractures. These findings may help clinicians make informed decisions regarding patient care and treatment strategies for better outcomes.
7.Sarcopenia as a Robust Predictor of Readmission within 6 Months among Individuals Experiencing Acute Stroke
Takafumi ABE ; Yoshihiro YOSHIMURA ; Yoichi SATO ; Fumihiko NAGANO ; Ayaka MATSUMOTO
Annals of Geriatric Medicine and Research 2024;28(3):307-314
Background:
Sarcopenia negatively affects the short-term prognosis of hospitalized older adults. However, no evidence currently supports a direct relationship between sarcopenia and readmission among individuals who have experienced an acute stroke. Therefore, we investigated whether sarcopenia is associated with readmission after discharge.
Methods:
This retrospective cohort study included patients who had experienced acute stroke. Sarcopenia was defined as the coexistence of low skeletal muscle mass index (SMI) and grip strength. We applied the log-rank test and Cox proportional hazards regression analysis to analyze whether sarcopenia, low SMI, and low grip strength were associated with readmission within 6 months.
Results:
Among 228 included patients (mean age, 72.8 years; 146 males), the prevalence of sarcopenia was 24.6% (n=56; male 17.8%; female 36.6%). Cox proportional hazards regression analysis using the propensity score as a covariate revealed that sarcopenia (hazard ratio [HR]=7.21; 95% confidence interval [CI] 1.45–35.8; p=0.016) and low skeletal muscle mass (HR=7.40; 95% CI 1.14–48.1; p=0.036), but not low grip strength (HR=1.42; 95% CI 0.281–7.21; p=0.670), were significantly associated with readmission for stroke within 6 months.
Conclusions
Sarcopenia was negatively associated with readmission within 6 months of stroke onset in patients in Japan who had experienced an acute stroke. These findings suggest that the identification of sarcopenia may facilitate prognostic prediction from the acute stage and intervention(s) to prevent rehospitalization.
8.Puncture angle on an endoscopic ultrasound image is independently associated with unsuccessful guidewire manipulation of endoscopic ultrasound-guided hepaticogastrostomy: a retrospective study in Japan
Akihisa OHNO ; Nao FUJIMORI ; Toyoma KAKU ; Kazuhide MATSUMOTO ; Masatoshi MURAKAMI ; Katsuhito TERAMATSU ; Keijiro UEDA ; Masayuki HIJIOKA ; Akira ASO ; Yoshihiro OGAWA
Clinical Endoscopy 2024;57(5):656-665
Background/Aims:
Although endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is performed globally, the procedure remains challenging. Guidewire manipulation is the most difficult step, and there are few reports on the factors associated with unsuccessful guidewire manipulation. This study aimed to assess the significance of the puncture angle on EUS images and identify the most effective guidewire rescue method for patients with unsuccessful guidewire manipulation.
Methods:
We retrospectively enrolled 115 patients who underwent EUS-HGS between May 2016 and April 2022 at two centers. The puncture angle between the needle and the intrahepatic bile duct was measured through EUS movie records.
Results:
Guidewire manipulation was unsuccessful in 28 patients. Receiver operating characteristic (ROC) curves identified an optimal puncture angle cutoff value of 85° (cutoff value, 85°; area under the ROC curve, 0.826; sensitivity, 85.7%; specificity, 81.6%). Multivariate analysis demonstrated that a puncture angle <85° was a significant risk factor for unsuccessful guidewire manipulation (odds ratio, 19.8; 95% confidence interval, 6.42–61.5; p<0.001). Among the 28 unsuccessful cases, 24 patients (85.7%) achieved successful guidewire manipulation using various rescue methods.
Conclusions
The puncture angle observed on EUS is crucial for guidewire manipulation. A puncture angle of <85° was associated with unsuccessful guidewire manipulation.
9.Improved Systemic Inflammation is Associated with Functional Prognosis in Post-Stroke Patients
Kota HORI ; Yoshihiro YOSHIMURA ; Hidetaka WAKABAYASHI ; Fumihiko NAGANO ; Ayaka MATSUMOTO ; Sayuri SHIMAZU ; Ai SHIRAISHI ; Yoshifumi KIDO ; Takahiro BISE ; Aomi KUZUHARA ; Takenori HAMADA ; Kouki YONEDA ; Kenichiro MAEKAWA
Annals of Geriatric Medicine and Research 2024;28(4):388-394
Background:
Systemic inflammation is associated with poor functional outcomes. However, the effects of improved inflammation on functional indicators remain unclear. This study aimed to clarify the relationship between improvements in systemic inflammation and activities of daily living in patients after stroke.
Methods:
This retrospective cohort study included patients post stroke with systemic inflammation upon admission. Systemic inflammation was defined as a modified Glasgow Prognostic Score (mGPS) score of 1–2. Improvement in systemic inflammation was defined as a reduction in mGPS score or blood C-reactive protein (CRP) levels during hospitalization. The primary outcomes were the motor items of the Functional Independence Measure (FIM-motor) at discharge. We applied multiple linear regression analysis to examine whether reduced systemic inflammation was associated with outcomes after adjusting for confounding factors.
Results:
Of the 1,490 patients recruited, 158 (median age of 79 years; 88 men) had systemic inflammation on admission and were included in the study. Among these patients, 131 (82.9%) and 147 (93.0%) exhibited reduced mGPS and CRP levels, respectively. The median change in CRP was 2.1 mg/dL (interquartile range, 1.1–3.8). Multivariate analysis revealed that improvements in mGPS (β=0.125, p=0.012) and CRP levels (β=0.108, p=0.108) were independently and positively associated with FIM-motor at discharge.
Conclusions
Improvement in systemic inflammation was positively associated with functional outcomes in patients post stroke. Early detection and therapeutic intervention for systemic inflammation may further improve outcomes in these patients.
10.Improved Systemic Inflammation is Associated with Functional Prognosis in Post-Stroke Patients
Kota HORI ; Yoshihiro YOSHIMURA ; Hidetaka WAKABAYASHI ; Fumihiko NAGANO ; Ayaka MATSUMOTO ; Sayuri SHIMAZU ; Ai SHIRAISHI ; Yoshifumi KIDO ; Takahiro BISE ; Aomi KUZUHARA ; Takenori HAMADA ; Kouki YONEDA ; Kenichiro MAEKAWA
Annals of Geriatric Medicine and Research 2024;28(4):388-394
Background:
Systemic inflammation is associated with poor functional outcomes. However, the effects of improved inflammation on functional indicators remain unclear. This study aimed to clarify the relationship between improvements in systemic inflammation and activities of daily living in patients after stroke.
Methods:
This retrospective cohort study included patients post stroke with systemic inflammation upon admission. Systemic inflammation was defined as a modified Glasgow Prognostic Score (mGPS) score of 1–2. Improvement in systemic inflammation was defined as a reduction in mGPS score or blood C-reactive protein (CRP) levels during hospitalization. The primary outcomes were the motor items of the Functional Independence Measure (FIM-motor) at discharge. We applied multiple linear regression analysis to examine whether reduced systemic inflammation was associated with outcomes after adjusting for confounding factors.
Results:
Of the 1,490 patients recruited, 158 (median age of 79 years; 88 men) had systemic inflammation on admission and were included in the study. Among these patients, 131 (82.9%) and 147 (93.0%) exhibited reduced mGPS and CRP levels, respectively. The median change in CRP was 2.1 mg/dL (interquartile range, 1.1–3.8). Multivariate analysis revealed that improvements in mGPS (β=0.125, p=0.012) and CRP levels (β=0.108, p=0.108) were independently and positively associated with FIM-motor at discharge.
Conclusions
Improvement in systemic inflammation was positively associated with functional outcomes in patients post stroke. Early detection and therapeutic intervention for systemic inflammation may further improve outcomes in these patients.

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