Publications by authors named "Masanori Hamada"

Introduction Many patients with cancer experience reduced activities of daily living due to muscle weakness and fatigue caused by underlying symptoms and treatment side effects. However, the incidence of locomotive syndrome, which may reduce mobility due to motor dysfunction in patients with cancer, has not been sufficiently explored. Therefore, we aimed to investigate the incidence of locomotive syndrome and identify its risk factors in perioperative patients with cancer.

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Skeletal-related events (SREs) are common in patients with bone metastases from castration-resistant prostate cancer (CRPC). Despite advances in prostate cancer treatment, clinically validated predictive models for SREs in CRPC patients with bone metastases remain elusive. This gap in prognostic tools hinders optimal patient management and treatment planning for this high-risk population.

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Background This study aimed to examine the influence of wearing a corset with radiation therapy (RT) on pain, activities of daily living (ADL), and quality of life (QoL) in patients with thoracic or lumbar spinal bone metastases one month after RT. Methodology Fifty-two patients (24 males and 28 females) with thoracic or lumbar spinal bone metastases whose measurements were recorded at our institute between July 2012 and December 2016 were included in this study. Age, sex, ADL, pain, spinal instability, and QoL were investigated in our analyses.

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Objectives During the eighth wave of COVID-19 in Hyogo Prefecture (October 1, 2022-February 28, 2023), the overwhelming transmissibility of the virus caused a significant strain on the healthcare system. This study focused on Amagasaki Health Center, Akashi Health Center, Sumoto Health Center (island region), and Asago Health Center (rural region) and their unique responses. The difference between the calculated "required number of critical care beds" (based on hospitalization recommendations) and the number of secured hospital beds was used as a measure of bed capacity strain, while the number of incidents involving difficulty in emergency transport was used as an indicator of a strain on emergency medical services.

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Background: Physical activity has the potential to promote tumor regression in patients with esophageal cancer receiving neoadjuvant chemotherapy (NAC); however, the benefits of light-intensity physical activity (LIPA) are unclear. This study aimed to investigate the impact of LIPA on tumor regression in male patients with esophageal cancer during NAC and its optimal cutoff value.

Methods: This retrospective single-center observational study included all male patients who underwent NAC or curative esophagectomy.

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Objective: The objective of this study was to confirm that early mobilization (EM) could reduce pneumonia in patients undergoing robot-assisted minimally invasive esophagectomy (RAMIE) for thoracic esophageal squamous cell carcinoma (TESCC).

Methods: Postoperative pneumonia was defined as physician-diagnosed pneumonia using the Esophagectomy Complications Consensus Group definition of pneumonia with a Clavien-Dindo classification grade II-V on postoperative day (POD) 3-5. EM was defined as achieving an ICU Mobility Scale (IMS) ≥7 by POD 2.

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Background & Aims: Exercise therapy is a potentially beneficial treatment option for chemotherapy-induced peripheral neuropathy (CIPN). However, there is a lack of consensus on the management of CIPN in patients with ovarian cancer. The purpose of this scoping review was to evaluate the evidence on the effectiveness of exercise therapy in patients with ovarian cancer and explore key physical fitness parameters.

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Purpose: In this study, we aimed to evaluate the changes in and the relationship between lower limb muscle strength and physical function before and after medial meniscus posterior root (MMPR) repair.

Methods: Thirty-three patients who underwent MMPR repair were evaluated. Pain was evaluated with the numerical rating scale (NRS), and knee flexor/extensor muscle strength was assessed using a handheld dynamometer.

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Article Synopsis
  • Research has primarily focused on static postural control in patients with adolescent idiopathic scoliosis (AIS), while dynamic postural control has been less studied.
  • This study involved 50 female AIS patients to examine factors influencing the index of postural stability (IPS), measured through stabilometry.
  • Key findings indicate that coronal balance, major curve position, and age are related to dynamic postural control ability, while the Cobb angle did not show any significant correlation.
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Background: The purpose of this study was to examine two techniques for Carpal Tunnel Syndrome, mini-Open Carpal Tunnel Release (mini-OCTR) and Endoscopic Carpal Tunnel Release (ECTR), to compare their therapeutic efficacy.

Methods: Sixteen patients who underwent mini-OCTR in palmar incision and 17 patients who underwent ECTR in the wrist crease incision were included in the study. All patients presented preoperatively and at 1, 3, and 6 months postoperatively and were assessed with the Visual Analogue Scale (VAS) and the Disabilities of Arm, Shoulder and Hand Score (DASH).

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Progression of the physical weakness during neoadjuvant therapy (NAT) in patients with esophageal or gastroesophageal junction cancer is a serious problem; however, prehabilitation during NAT has the potential to overcome the unmet need. Nevertheless, systematic reviews on this topic have not been summarized. Therefore, this systematic review aimed to determine prehabilitation's effectiveness, acceptability, and safety during NAT for patients with esophageal or gastroesophageal junction cancer.

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Introduction: The association of changes in skeletal muscle mass and quality during the waiting time with outcomes of lung transplantation (LT) remains unclear. We aimed to examine the association of changes in skeletal muscle mass and quality during the waiting time, as well as preoperative skeletal muscle mass and quality, with outcomes of LT.

Methods: This study included individuals who underwent LT from brain-dead donors.

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Article Synopsis
  • - The study evaluated quadriceps muscle strength in 30 patients after undergoing posterior root repair of the medial meniscus (MM) and looked at its correlation with clinical outcomes and MM extrusion.
  • - Significant improvements were observed in quadriceps strength, MM extrusion, and clinical scores one year after surgery, indicating overall positive recovery (p < 0.001).
  • - The findings showed a negative correlation between quadriceps strength and change in MM extrusion, suggesting that stronger quadriceps may relate to less MM extrusion over time (correlation coefficient = -0.398, p = 0.030).
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This retrospective study aimed to investigate the validity of a 30-sec chair stand test (CS-30) as a simple test to assess exercise tolerance and clinical outcomes in 53 Japanese patients with esophageal cancer. There was a strong correlation between the results of CS-30 and the 6-min walk test (6MWT), the gold standard for assessing exercise tolerance (r=0.759).

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  • The study aimed to compare clinical outcomes of three subtypes of type 2 medial meniscus posterior root tears after transtibial pullout repair in 147 patients, average age 66.2 years.
  • No notable differences in pre- or post-operative clinical scores were found among the tear subtypes, although all showed improvement after surgery.
  • However, type 2A tears had wider bridging tissues and less post-operative medial meniscus extrusion compared to types 2B and 2C, suggesting that classifying tear types may help predict recovery outcomes.
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Background: There are no recommendations for specific suture materials in transtibial pullout repair of medial meniscus posterior root tears. This study aimed to evaluate the clinical outcomes of transtibial pullout repair of medial meniscus posterior root tears using ultrahigh-molecular-weight polyethylene sutures and suture tape.

Methods: We retrospectively reviewed the data of 36 patients (27 women and 9 men, mean age 64.

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Purpose: We investigated objective and patient-reported outcomes after resection arthroplasty or shortening oblique osteotomy (SOO) of the lesser metatarsals combined with arthrodesis of the first metatarsophalangeal (MTP) joint for severe rheumatoid forefoot deformities.

Methods: 17 feet from 14 women (mean age, 67.8 years) underwent resection arthroplasty of the lesser metatarsal heads (MTH resection group), while 13 feet from nine women and two men (mean age, 68.

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This study aimed to investigate the association between overall survival (OS) and activities of daily living (ADL) in patients with skeletal-related events. In this study, 265 patients whose clinical parameters were available before radiotherapy were investigated. Age, sex, ADL, pain, the primary site, spinal level of bone metastases, spinal instability, treatment strategy, including chemotherapy or palliative treatment, and OS were investigated.

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Unlabelled: This study examined changes in the quality of life (QOL), as well as the factors affecting QOL, among patients with painful spinal bone metastases without paralysis for 1 month after radiotherapy.

Methods: This study included 79 participants (40 male and 39 female; median age, 65 (42-88) years) who had undergone radiotherapy for painful spinal bone metastases without paralysis. Patients' age, sex, activities of daily living (Barthel index), pain, spinal instability (spinal instability neoplastic score [SINS]), and QOL (EORTC QLQ-C30) were investigated.

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Background: Nerve conduction study (NCS) is the only useful test for objective assessment of carpal tunnel syndrome (CTS). However, the relationship between pre- and postoperative NCS and clinical outcomes was unclear. This study aimed to determine whether pre- and postoperative (6 months) NCS could predict patient-oriented and motor outcomes (6 and 12 months postoperatively) in patients with CTS.

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Psychological distress is common in patients with soft tissue and bone tumors. We first investigated its frequency and the associated risk factors in patients with pre-operative bone and soft tissue tumors. Participants included 298 patients with bone and soft tissue tumors who underwent surgery in our institution between 2015 and 2020.

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Article Synopsis
  • The study investigated the impact of pre-surgery mobility on D-dimer levels, an indicator of blood clot risk, after total hip arthroplasty in female patients with hip osteoarthritis.
  • It included 102 women aged 45-81 and measured various factors like age, body mass index (BMI), pain levels, and ambulatory ability before surgery, comparing those with high vs. low D-dimer levels post-op.
  • Findings revealed that older patients with lower mobility before surgery had higher D-dimer levels post-op, suggesting a greater risk for deep venous thrombosis in those over 60.
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Muscle power in the lower extremities and body sway were measured in 57 healthy young women volunteers in their 20's. Body sway was measured with a stabilimeter for 30 sec during two-leg standing, and for 10 sec during one-leg standing with the eyes open or closed, alternating between right and left legs (5 times each). The measured parameters of body sway were locus length per time unit, locus length per environmental area, environmental area, rectangle area, root mean square area, and the ratio of sway with eyes closed to sway with eyes open.

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