1.Live Animal Training in Surgical Education for Undergraduate Medical Students
Ken HATANO ; Kazuhiro ENDO ; Kazue MORISHIMA ; Yasunari SAKUMA ; Alan Kawarai LEFOR ; Yoshimitsu IZAWA ; Shin SAITO ; Koji KOINUMA ; Yasuharu ONISHI ; Shuji HISHIKAWA ; Hiroshi KAWAHIRA ; Naohiro SATA
Medical Education 2024;55(1):20-26
A live animal training program is offered to medical students seeking more advanced surgical education. This program requires active participation in all aspects, from planning to implementation. The program provides medical students with a valuable opportunity to develop their interest in surgical care and to acquire advanced surgical techniques through a step-by-step approach. Additionally, they have the chance to develop various types of non-technical skills by assuming different roles within a team. Instructors offer support for their learning. Peer learning allows medical students to learn from and discuss with each other, enabling them to acquire a broad range of knowledge and skills. Simultaneously, students are expected to understand the importance of a team approach by participating in this program from the perspectives of various medical professions. Moreover, the program contributes to the formation of their professional identity.
2.Phase I/II prospective clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced uterine cervical cancer
Naoya MURAKAMI ; Miho WATANABE ; Takashi UNO ; Shuhei SEKII ; Kayoko TSUJINO ; Takahiro KASAMATSU ; Yumiko MACHITORI ; Tomomi AOSHIKA ; Shingo KATO ; Hisako HIROWATARI ; Yuko KANEYASU ; Tomio NAKAGAWA ; Hitoshi IKUSHIMA ; Ken ANDO ; Masumi MURATA ; Ken YOSHIDA ; Hiroto YOSHIOKA ; Kazutoshi MURATA ; Tatsuya OHNO ; Noriyuki OKONOGI ; Anneyuko I. SAITO ; Mayumi ICHIKAWA ; Takahito OKUDA ; Keisuke TSUCHIDA ; Hideyuki SAKURAI ; Ryoichi YOSHIMURA ; Yasuo YOSHIOKA ; Atsunori YOROZU ; Naonobu KUNITAKE ; Hiroyuki OKAMOTO ; Koji INABA ; Tomoyasu KATO ; Hiroshi IGAKI ; Jun ITAMI
Journal of Gynecologic Oncology 2023;34(3):e24-
Objective:
The purposes of this trial were to demonstrate the feasibility and effectiveness of the hybrid of intracavitary and interstitial brachytherapy (HBT) for locally advanced cervical cancer patients in the phase I/II prospective clinical trial.
Methods:
Patients with FIGO stage IB2-IVA uterine cervical cancer pretreatment width of which was ≥5 cm measured by magnetic resonance imaging were eligible for this clinical trial. The protocol therapy included 30–30.6 Gy in 15–17 fractions of whole pelvic radiotherapy concurrent with weekly CDDP, followed by 24 Gy in 4 fractions of HBT and pelvic radiotherapy with a central shield up to 50–50.4 Gy in 25–28 fractions. The primary endpoint of phase II part was 2-year pelvic progression-free survival (PPFS) rate higher than historical control of 64%.
Results:
Between October 2015 and October 2019, 73 patients were enrolled in the initial registration and 52 patients proceeded to the secondary registration. With the median follow-up period of 37.3 months (range, 13.9–52.9 months), the 2- PPFS was 80.7% (90% confidence interval [CI]=69.7%–88%). Because the lower range of 90% CI of 2-year PPFS was 69.7%, which was higher than the historical control ICBT data of 64%, therefore, the primary endpoint of this study was met.
Conclusion
The effectiveness of HBT were demonstrated by a prospective clinical study. Because the dose goal determined in the protocol was lower than 85 Gy, there is room in improvement for local control. A higher dose might have been needed for tumors with poor responses.
3.Teriparatide and etelcalcetide improve bone, fibrosis, and fat parameters in chronic kidney disease model rats
Shun IGARASHI ; Yuji KASUKAWA ; Koji NOZAKA ; Hiroyuki TSUCHIE ; Kazunobu ABE ; Hikaru SAITO ; Ryo SHOJI ; Fumihito KASAMA ; Shuntaro HARATA ; Kento OKAMOTO ; Keita OYA ; Naohisa MIYAKOSHI
Osteoporosis and Sarcopenia 2023;9(4):121-130
Objectives:
Chronic kidney disease (CKD) complicated by secondary hyperparathyroidism (SHPT) is associated with an increased risk of fragility fractures. Etelcalcetide (EC) is a treatment for SHPT that reduces serum parathyroid hormone (PTH) levels. However, the effects of combined treatment with osteoporosis drugs such as teriparatide (TPTD) remain unclear. This study investigates the combined effects of EC and TPTD on bone in CKD model rats.
Methods:
The CKD model was established in 8-week-old male Wistar rats by feeding them a 0.75% adenine diet for 4 weeks. At 20 weeks of age, the rats were divided into 4 groups (n = 9–10 in each group): CKD group (vehicle administration), TPTD group (30 μg/kg, 3 times/week), EC group (0.6 mg/kg, daily), and Comb group (TPTD and EC combined). EC was injected for 12 weeks starting at 20 weeks of age, and TPTD was injected for 8 weeks starting at 24 weeks of age. After treatment, the followings were evaluated: bone mineral density, bone strength, biochemical tests, bone and fat histomorphometry, and micro-computed tomography.
Results:
In CKD model rats, the combination of EC and TPTD was more effective in increasing cortical bone thickness and bone strength and inhibiting porosity. In addition, the combined treatment decreased bone marrow adiposity and fibrosis, and it increased bone mass and improved bone microstructure in trabecular bone.
Conclusions
With the observed benefits such as improved bone mass, bone strength, structural properties, and bone marrow adiposity, combination therapy may be a potential way to improve bone fragility in CKD.
4.A Case of Successful Cognitive Rehabilitation in the Chronic Stage of Right Middle Cerebral Artery Territory Infarction:The Application of Guidance on Internal Methods, Including Time Pressure Management
Masaharu SAWAKI ; Hiroyasu YAMAMOTO ; Masahiko YAMAMOTO ; Toshiyuki HABUKI ; Katsuo YAMADA ; Koji SAITO
The Japanese Journal of Rehabilitation Medicine 2023;():22036-
Few reports have yet investigated adequate cognitive rehabilitation for patients with chronic cognitive disorder. In this report, we describe a case of cognitive rehabilitation 10 months after onset of cerebral infarction in the right middle cerebral artery region, resulting in a good outcome. The patient was a 44-year-old right-handed male, with primary symptoms of inattention and left hemispatial neglect. The patient had not undergone any neuropsychological evaluations or cognitive rehabilitation until 10 months after disease onset. After 30 days of both direct attention training and metacognitive strategy training, including time pressure management, improvement of his cognitive disorder was achieved. The teaching of internal methods to improve metacognition with a high level of evidence was effective even 10 months after onset. Furthermore, it is important for therapists who provide cognitive rehabilitation using metacognitive strategy training to understand patients' remaining functions based on neuropsychological assessment, and to consider and teach compensatory methods so that they can be effectively used by patients in situations of daily life.
5.A Case of Successful Cognitive Rehabilitation in the Chronic Stage of Right Middle Cerebral Artery Territory Infarction:The Application of Guidance on Internal Methods, Including Time Pressure Management
Masaharu SAWAKI ; Hiroyasu YAMAMOTO ; Masahiko YAMAMOTO ; Toshiyuki HABUKI ; Katsuo YAMADA ; Koji SAITO
The Japanese Journal of Rehabilitation Medicine 2023;60(2):159-165
Few reports have yet investigated adequate cognitive rehabilitation for patients with chronic cognitive disorder. In this report, we describe a case of cognitive rehabilitation 10 months after onset of cerebral infarction in the right middle cerebral artery region, resulting in a good outcome. The patient was a 44-year-old right-handed male, with primary symptoms of inattention and left hemispatial neglect. The patient had not undergone any neuropsychological evaluations or cognitive rehabilitation until 10 months after disease onset. After 30 days of both direct attention training and metacognitive strategy training, including time pressure management, improvement of his cognitive disorder was achieved. The teaching of internal methods to improve metacognition with a high level of evidence was effective even 10 months after onset. Furthermore, it is important for therapists who provide cognitive rehabilitation using metacognitive strategy training to understand patients' remaining functions based on neuropsychological assessment, and to consider and teach compensatory methods so that they can be effectively used by patients in situations of daily life.
6.Reduced Intravenous Fluorescein Dose for Upper and Lower Gastrointestinal Tract Probe-Based Confocal Laser Endomicroscopy
Kazuya INOKI ; Seiichiro ABE ; Yusaku TANAKA ; Koji YAMAMOTO ; Daisuke HIHARA ; Ryoji ICHIJIMA ; Yukihiro NAKATANI ; HsinYu CHEN ; Hiroyuki TAKAMARU ; Masau SEKIGUCHI ; Masayoshi YAMADA ; Taku SAKAMOTO ; Satoru NONAKA ; Haruhisa SUZUKI ; Shigetaka YOSHINAGA ; Ichiro ODA ; Takahisa MATSUDA ; Yutaka SAITO
Clinical Endoscopy 2021;54(3):363-370
Background/Aims:
Probe-based confocal laser endomicroscopy (pCLE) requires the administration of intravenous (IV) fluorescein. This study aimed to determine the optimal dose of IV fluorescein for both upper and lower gastrointestinal (GI) tract pCLE.
Methods:
Patients 20 to 79 years old with gastric high-grade dysplasia (HGD) or colorectal neoplasms (CRNs) were enrolled in the study. The dose de-escalation method was employed with five levels. The primary endpoint of the study was the determination of the optimal dose of IV fluorescein for pCLE of the GI tract. The reduced dose was determined based on off-line reviews by three endoscopists. An insufficient dose of fluorescein was defined as the dose of fluorescein with which the pCLE images were not deemed to be visible. If all three endoscopists determined that the tissue structure was visible, the doses were de-escalated.
Results:
A total of 12 patients with gastric HGD and 12 patients with CRNs were enrolled in the study. Doses were de-escalated to 0.5 mg/kg of fluorescein for both non-neoplastic duodenal and colorectal mucosa. All gastric HGD or CRNs were visible with pCLE with IV fluorescein at 0.5 mg/kg.
Conclusions
In the present study, pCLE with IV fluorescein 0.5 mg/kg was adequate to visualize the magnified structure of both the upper and lower GI tract.
7.Successful endoscopic closure with endoscopic clips for endoscopic ultrasound related large duodenal perforation
Koji TAKAHASHI ; Ryo SAITO ; Yoshihisa TAKEUCHI ; Chihiro GOTO ; Masami AWATSU ; Kentaro ISHIKAWA ; Hideaki ISHIGAMI ; Meiji KUGA ; Yoshio MASUYA
Journal of Rural Medicine 2021;16(3):165-169
Objectives: Duodenal perforation as a complication of endoscopic ultrasound-guided fine needle aspiration may progress to acute peritonitis and septic shock. Open surgery, the standard treatment, can be avoided by performing closure during endoscopy using endoscopic clips.Patient: A 77-year-old woman was referred to our hospital with salivary gland swelling. She had elevated hepatobiliary enzymes and jaundice. Computed tomography (CT) revealed pancreatic head swelling and bile duct dilation. Endoscopic ultrasonography revealed a hypoechoic mass in the pancreatic head. The pancreatic head mass was punctured twice using a 22-gauge Franchine-type puncture needle at the duodenal bulb. The endoscope was advanced to the descending part of the duodenum, and part of the superior duodenal angle was perforated (diameter approximately 15 mm) with the endoscope. The duodenal mucosa around the perforation was immediately closed using endoscopic clips.Results: Abdominal CT showed gas in the peritoneal and retroperitoneal spaces. The patient experienced abdominal pain and fever and was treated with fasting and antibiotics. The gas gradually decreased, symptoms improved, and she was discharged 18 days after the perforation. Histopathologically, the pancreatic tissue was consistent as autoimmune pancreatitis.Conclusion: Endoscopic closure using endoscopic clips may be a better therapeutic option for duodenal perforation caused by endoscopy.
8.Reduced Intravenous Fluorescein Dose for Upper and Lower Gastrointestinal Tract Probe-Based Confocal Laser Endomicroscopy
Kazuya INOKI ; Seiichiro ABE ; Yusaku TANAKA ; Koji YAMAMOTO ; Daisuke HIHARA ; Ryoji ICHIJIMA ; Yukihiro NAKATANI ; HsinYu CHEN ; Hiroyuki TAKAMARU ; Masau SEKIGUCHI ; Masayoshi YAMADA ; Taku SAKAMOTO ; Satoru NONAKA ; Haruhisa SUZUKI ; Shigetaka YOSHINAGA ; Ichiro ODA ; Takahisa MATSUDA ; Yutaka SAITO
Clinical Endoscopy 2021;54(3):363-370
Background/Aims:
Probe-based confocal laser endomicroscopy (pCLE) requires the administration of intravenous (IV) fluorescein. This study aimed to determine the optimal dose of IV fluorescein for both upper and lower gastrointestinal (GI) tract pCLE.
Methods:
Patients 20 to 79 years old with gastric high-grade dysplasia (HGD) or colorectal neoplasms (CRNs) were enrolled in the study. The dose de-escalation method was employed with five levels. The primary endpoint of the study was the determination of the optimal dose of IV fluorescein for pCLE of the GI tract. The reduced dose was determined based on off-line reviews by three endoscopists. An insufficient dose of fluorescein was defined as the dose of fluorescein with which the pCLE images were not deemed to be visible. If all three endoscopists determined that the tissue structure was visible, the doses were de-escalated.
Results:
A total of 12 patients with gastric HGD and 12 patients with CRNs were enrolled in the study. Doses were de-escalated to 0.5 mg/kg of fluorescein for both non-neoplastic duodenal and colorectal mucosa. All gastric HGD or CRNs were visible with pCLE with IV fluorescein at 0.5 mg/kg.
Conclusions
In the present study, pCLE with IV fluorescein 0.5 mg/kg was adequate to visualize the magnified structure of both the upper and lower GI tract.
9.Analysis of bone in adenine-induced chronic kidney disease model rats
Hikaru SAITO ; Naohisa MIYAKOSHI ; Yuji KASUKAWA ; Koji NOZAKA ; Hiroyuki TSUCHIE ; Chiaki SATO ; Kazunobu ABE ; Ryo SHOJI ; Yoichi SHIMADA
Osteoporosis and Sarcopenia 2021;7(4):121-126
Objectives:
The purpose of this study is to investigate the stage of chronic kidney disease (CKD) in adenine-induced CKD model rats by serum analyses, and to examine bone mineral density (BMD), bone strength, and microstructure of trabecular and cortical bone in these rats.
Methods:
Eight-week-old, male Wistar rats (n = 42) were divided into 2 groups: those fed a 0.75% adenine diet for 4 weeks until 12 weeks of age to generate CKD model rats (CKD group); and sham rats. The CKD and sham groups were sacrificed at 12, 16, and 20 weeks of age (n = 7 in each group and at 12, 16, and 20 weeks), and various parameters were evaluated, including body weight, renal wet weight, muscle wet weight, renal histology, biochemical tests, BMD, biomechanical testing, and micro-computed tomography (CT). The parameters were compared between the 2 groups at the various time points.
Results:
In the CKD model rats, at 20 weeks of age, serum creatinine, phosphorus, and intact-PTH levels were elevated, and serum calcium levels were normal, indicating that the CKD was stage IV and associated with secondary hyperparathyroidism. Decreased BMDs of the whole body and the femur were observed as bone changes, and micro-CT analysis showed deterioration of bone microstructure of the cortical bone that resulted in decreased bone strength in the cortical and trabecular bone.
Conclusions
These CKD model rats showed stage IV CKD and appear appropriate for evaluating the effects of several treatments for CKD-related osteoporosis and mineral bone disorder.
10.Association between high psychological distress and poor oral health-related quality of life (OHQoL) in Japanese community-dwelling people: the Nagasaki Islands Study.
Ai SEKIGUCHI ; Shin-Ya KAWASHIRI ; Hideaki HAYASHIDA ; Yuki NAGAURA ; Kenichi NOBUSUE ; Fumiaki NONAKA ; Hirotomo YAMANASHI ; Masayasu KITAMURA ; Koji KAWASAKI ; Hideki FUKUDA ; Takahiro IWASAKI ; Toshiyuki SAITO ; Takahiro MAEDA
Environmental Health and Preventive Medicine 2020;25(1):82-82
BACKGROUND:
We investigated the association between psychological distress and oral health status/oral health-related quality of life (OHQoL) in Japanese community-dwelling people.
METHODS:
We conducted a cross-sectional study using data from the Nagasaki Islands Study. A total of 1183 (455 men and 728 women) has been analyzed in this study. Psychological distress was measured using the Kessler Psychological Distress Scale (K6). Oral health status was measured by dental examination. The OHQoL was measured using the General Oral Health Assessment Index (GOHAI). We defined the total score of ≥5 points on the K6 as high psychological distress (high-K6 group).
RESULTS:
The multiple linear regression analysis to identify the GOHAI showed that gender, K6, the total number of teeth, the number of dental caries, and visiting a dental clinic within the past 6 months significantly associated with the GOHAI. Among all of these variables, high-K6 (≥ 5) was a substantial contributing factor of the GOHAI (β = - 0.23, 95% Cl - 2.31 to -1.41, p < 0.0001).
CONCLUSIONS
It is likely that the individual with high psychological distress was strongly related to poor OHQoL even in the general population.
Aged
;
Cross-Sectional Studies
;
Dental Caries/epidemiology*
;
Female
;
Humans
;
Independent Living/statistics & numerical data*
;
Japan/epidemiology*
;
Linear Models
;
Male
;
Middle Aged
;
Oral Health/statistics & numerical data*
;
Quality of Life/psychology*
;
Sex Factors
;
Stress, Psychological/epidemiology*


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