1.Intestinal ultrasound for intestinal Behçet disease reflects endoscopic activity and histopathological findings
Katsuki YAGUCHI ; Reiko KUNISAKI ; Sho SATO ; Kaori HIRAI ; Misato IZUMI ; Yoshimi FUKUNO ; Mami TANAKA ; Mai OKAZAKI ; Rongrong WU ; Yurika NISHIKAWA ; Yusuke MATSUNE ; Shunsuke SHIBUI ; Yoshinori NAKAMORI ; Masafumi NISHIO ; Mao MATSUBAYASHI ; Tsuyoshi OGASHIWA ; Ayako FUJII ; Kenichiro TORITANI ; Hideaki KIMURA ; Eita KUMAGAI ; Yukiko SASAHARA ; Yoshiaki INAYAMA ; Satoshi FUJII ; Toshiaki EBINA ; Kazushi NUMATA ; Shin MAEDA
Intestinal Research 2024;22(3):297-309
Background/Aims:
Intestinal Behçet disease is typically associated with ileocecal punched-out ulcers and significant morbidity and mortality. Intestinal ultrasound is a noninvasive imaging technique for disease monitoring. However, no previous reports have compared intestinal ultrasound with endoscopic ulcer activity or histopathological findings for intestinal Behçet disease. We evaluated the usefulness of intestinal ultrasound for assessing the activity of ileocecal ulcers in intestinal Behçet disease.
Methods:
We retrospectively compared intestinal ultrasound findings with 73 corresponding endoscopic images and 6 resected specimens. The intestinal ultrasound findings were assessed for 7 parameters (bowel wall thickness, vascularity [evaluated using the modified Limberg score with color Doppler], bowel wall stratification, white-plaque sign [strong hyperechogenic lines or spots], mesenteric lymphadenopathy, extramural phlegmons, and fistulas), and endoscopic ulcer activity was classified into active, healing, and scar stages. Histopathological findings were evaluated by consensus among experienced pathologists.
Results:
Bowel wall thickness (P< 0.001), vascularity (P< 0.001), loss of bowel wall stratification (P= 0.015), and white-plague sign (P= 0.013) were significantly exacerbated in the endoscopic active ulcer stage. Receiver operating characteristic curve analysis revealed that a bowel wall thickness of > 5.5 mm (sensitivity 89.7%, specificity 85.3%) was potentially useful for detecting active lesions. When compared with histopathological findings, an increase in bowel wall thickness reflected the ulcer marginal ridge, and the white-plaque sign reflected the ulcer bottom.
Conclusions
Intestinal ultrasound is useful for monitoring intestinal ulcer activity in intestinal Behçet disease.
2.Three-Dimensional Analysis of the Ideal Entry Point for Sacral Alar Iliac Screws
Noriyuki WATANABE ; Tomoyuki TAKIGAWA ; Koji UOTANI ; Yoshiaki ODA ; Haruo MISAWA ; Masato TANAKA ; Toshifumi OZAKI
Asian Spine Journal 2022;16(6):874-881
Methods:
Preoperative CT data from 26 patients pertaining to adult spinal deformities were investigated in this study. We applied a 3D image processing method for a detailed investigation. Virtual cylinders were used to mimic SAI screws. These were placed to penetrate the sacral iliac joint without violating the other cortex. We then assessed the trajectory of the longest SAI screw and the ideal entry point of SAI using a color mapping method on the surface of the sacrum. We measured the location of the nerve root at S1 in relation to the foramen at S1 and the sacral surface.
Results:
As per the results of our color mapping, it was determined that areas that received high scores are located medially and caudally to the dorsal foramen of S1. The mean angle between a horizontal line and a line connecting the medial edge of the foramen and nerve root at S1 was 93.5°. The mean distances from the dorsal medial edge of the foramen and sacral surface to S1 nerve root were 21.8 mm and 13.9 mm, respectively.
Conclusions
The ideal entry point of the SAI screw is located medially and caudally to the S1 dorsal foramen based on 3D digital mapping. It is also shown that this entry point spares the S1 nerve root from possible iatrogenic injuries.
3.Simultaneous Evaluation of Laryngopharyngeal Reflux and Swallowing Function Using Hypopharyngeal Multichannel Intraluminal Impedance Measurements in Neurologically Impaired Patients
Daisuke MASUI ; Suguru FUKAHORI ; Naoki HASHIZUME ; Shinji ISHII ; Naruki HIGASHIDATE ; Saki SAKAMOTO ; Shiori TSURUHISA ; Hirotomo NAKAHARA ; Nobuyuki SAIKUSA ; Yoshiaki TANAKA ; Minoru YAGI
Journal of Neurogastroenterology and Motility 2021;27(2):198-204
Background/Aims:
This study aims to evaluate the presence of laryngopharyngeal reflux (LPR) and to investigate the use of hypopharyngeal baseline impedance (BI) for assessing swallowing dysfunction and gastroesophageal reflux disease (GERD) using hypopharyngeal multichannel intraluminal impedance and pH (HMII-pH) monitoring in neurologically impaired patients (NIPs).
Methods:
The study population in this retrospective study comprised 20 NIPs (mean age, 36.1 ± 15.0 years; age range, 13-64 years) who underwent multichannel intraluminal impedance and pH (MII-pH), HMII-pH, and laryngoscopy using the Hyodo scoring method from December 2016 to April 2019. The MII-pH and HMM-pH parameters were compared in the NIPs, whereas hypopharyngeal BI values were compared between NIPs with ≥ 5 and < 5 in Hyodo scores. Correlations between the hypopharyngeal BI values and the Hyodo score were analyzed using Spearman’s correlation coefficient. A receiver operator characteristic curve was created to determine the optimum cut-off of hypopharyngeal BI value to discriminate SD.
Results:
Three NIPs were diagnosed with pathological LPR and GERD by the HMII-pH monitoring. No significant differences in parameters were observed between MII-pH and HMII-pH monitoring. The correlation analysis demonstrated a significant negative correlation between the hypopharyngeal BI values and Hyodo scores. The optimal cutoff value for hypopharyngeal BI was 1552 Ω.
Conclusions
This study demonstrated the usefulness of HMII-pH monitoring in identifying NIP with pathological LPR. Considering the difficulties in performing examinations in NIPs, HMII-pH monitoring may be a potentially useful technique for the simultaneous evaluation of swallowing dysfunction, LPR, and GERD in NIP.
4.Validating the Utilization of the Patient Compliance Instruction Support System “FollowNavi” for Follow-up Inhalation Instructions
Shumpei HARIGAI ; Rei TANAKA ; Shu SEKIYA ; Yoshiaki SHIKAMURA
Japanese Journal of Drug Informatics 2021;23(2):72-81
Objective: Following the amendment of the Pharmaceutical and Medical Device Act in December 2019, continuous follow-up of patients during treatment has been mandated for pharmacists. The follow-up methods may involve contacting patients via telephone and social networking services (SNS). The SNS is advantageous over telephone, because patients can respond to the pharmacists at their convenience. Therefore, we developed a patient compliance instruction support system “FollowNavi” using LINE. We prepared a content of inhalation drugs used to treat bronchial asthma for assessment using FollowNavi and conducted questionnaire surveys among patients and pharmacists to validate its utility.Methods: FollowNavi was used from May1 to July 31, 2020, to follow up patients diagnosed with bronchial asthma for whom long-term control medicine (inhalation drugs) was prescribed for the first time or prescriptions were changed from other inhalation drugs. Subsequently, when the patients revisited the pharmacy, we conducted a questionnaire survey regarding the usability of FollowNavi. We also conducted a questionnaire survey among the pharmacists.Results: Seven and five responses were received from patients who were followed up via FollowNavi and pharmacists who used FollowNavi, respectively. Furthermore, 28.6% of the patients responded “I could solve the problem through LINE” and 71.4% responded “I did not have anything in particular that I could not understand.” As for pharmacists, 60.0% responded that they could obtain sufficient information from the patients through FollowNavi.Conclusion: The results suggest that follow-up after providing inhalation instructions using the inhalation drug content of FollowNavi may be useful for both patients and pharmacists.
5.Simultaneous Evaluation of Laryngopharyngeal Reflux and Swallowing Function Using Hypopharyngeal Multichannel Intraluminal Impedance Measurements in Neurologically Impaired Patients
Daisuke MASUI ; Suguru FUKAHORI ; Naoki HASHIZUME ; Shinji ISHII ; Naruki HIGASHIDATE ; Saki SAKAMOTO ; Shiori TSURUHISA ; Hirotomo NAKAHARA ; Nobuyuki SAIKUSA ; Yoshiaki TANAKA ; Minoru YAGI
Journal of Neurogastroenterology and Motility 2021;27(2):198-204
Background/Aims:
This study aims to evaluate the presence of laryngopharyngeal reflux (LPR) and to investigate the use of hypopharyngeal baseline impedance (BI) for assessing swallowing dysfunction and gastroesophageal reflux disease (GERD) using hypopharyngeal multichannel intraluminal impedance and pH (HMII-pH) monitoring in neurologically impaired patients (NIPs).
Methods:
The study population in this retrospective study comprised 20 NIPs (mean age, 36.1 ± 15.0 years; age range, 13-64 years) who underwent multichannel intraluminal impedance and pH (MII-pH), HMII-pH, and laryngoscopy using the Hyodo scoring method from December 2016 to April 2019. The MII-pH and HMM-pH parameters were compared in the NIPs, whereas hypopharyngeal BI values were compared between NIPs with ≥ 5 and < 5 in Hyodo scores. Correlations between the hypopharyngeal BI values and the Hyodo score were analyzed using Spearman’s correlation coefficient. A receiver operator characteristic curve was created to determine the optimum cut-off of hypopharyngeal BI value to discriminate SD.
Results:
Three NIPs were diagnosed with pathological LPR and GERD by the HMII-pH monitoring. No significant differences in parameters were observed between MII-pH and HMII-pH monitoring. The correlation analysis demonstrated a significant negative correlation between the hypopharyngeal BI values and Hyodo scores. The optimal cutoff value for hypopharyngeal BI was 1552 Ω.
Conclusions
This study demonstrated the usefulness of HMII-pH monitoring in identifying NIP with pathological LPR. Considering the difficulties in performing examinations in NIPs, HMII-pH monitoring may be a potentially useful technique for the simultaneous evaluation of swallowing dysfunction, LPR, and GERD in NIP.
6.Serum 25-hydroxyvitamin D concentrations in Japanese postmenopausal women with osteoporotic fractures
Yoshiaki YAMANAKA ; Kunitaka MENUKI ; Yukichi ZENKE ; Satoshi IKEDA ; Eiji HATAKEYAMA ; Kimiaki KAWANO ; Satoshi NISHIDA ; Hiroaki TANAKA ; Keiichi YUMISASHI ; Akinori SAKAI
Osteoporosis and Sarcopenia 2019;5(4):116-121
OBJECTIVES:
To assess the vitamin D status in postmenopausal women with osteoporotic fractures, determine its concentration by fracture site at the clinical setting, and compare the proportion of vitamin D deficiency with that reported in literature.
METHODS:
The prospective study included 317 postmenopausal women with osteoporotic fractures who were treated consecutively from 2016 to 2018. After obtaining informed consent for participation in the seamless treatment of osteoporosis against fractures study, which is our initiative to prevent secondary osteoporotic fractures, we registered the patients, examined bone mineral density (BMD) at the unfractured femoral neck and lumbar spine, serum 25-hydroxyvitamin D (25(OH)D) concentration, blood chemistry, and bone turnover markers.
RESULTS:
The mean age of the patients was 80.7 years. Moreover, 78% of patients of all fractures had 25(OH)D concentration < 20 ng/mL, whereas 12% of patients had 25(OH)D concentration ≥ 30 ng/mL 25(OH)D concentration in hip fractures was significantly lower than that in vertebral or distal radius fractures (P < 0.05). Multiple regression analysis revealed that 25(OH)D concentration is significantly associated with femoral neck BMD (β = 0.16; 95% confidence interval [CI], 0.78–12.17, P = 0.03) and serum albumin concentration (β = 0.21; 95% CI, 0.62–2.96, P < 0.001) in patients with 25(OH)D concentration < 30 ng/mL.
CONCLUSIONS
The results of this study show that the proportion of postmenopausal women with osteoporotic fractures who had vitamin D deficiency was higher than the proportion in previous reports that examined general postmenopausal women (35.2%–52.0%).
7.Relationship between Displacement of the Psoas Major Muscle and Spinal Alignment in Patients with Adult Spinal Deformity
Yoshiaki ODA ; Tomoyuki TAKIGAWA ; Ryo UGAWA ; Yasuyuki SHIOZAKI ; Haruo MISAWA ; Yoshihisa SUGIMOTO ; Masato TANAKA ; Toshifumi OZAKI
Asian Spine Journal 2018;12(2):335-342
STUDY DESIGN: Cross sectional study. PURPOSE: To clarify the difference in position of the psoas muscle between adult spinal deformity (ASD) and lumbar spinal stenosis (LSS). OVERVIEW OF LITERATURE: Although it is known that the psoas major muscle deviates in ASD patients, no report is available regarding the difference in comparison with LSS patients. METHODS: This study investigates 39 patients. For evaluating spinal alignment, pelvic tilt (PT), pelvic incidence (PI), sacral slope, lumbar lordosis (LL), PI–LL, Cobb angle, and the convex side, the lumbar curves were measured. For measuring the position of the psoas major at the L4/5 disk level, magnetic resonance imaging was used. The displacements of psoas major muscle were measured separately in the anterior–posterior and lateral directions. We examined the relationship between the radiographic parameters and anterior displacement (AD) and lateral displacement (LD) of the psoas major muscle. RESULTS: AD was demonstrated in 15 cases with ASD and nine cases with LSS (p>0.05). LD was observed in 13 cases with ASD and no cases with LSS (p < 0.01). The Cobb angle was significantly greater in cases with AD than in those without AD (p=0.04). PT, LL, PI–LL, and Cobb angle were significantly greater in cases with LD (p < 0.05). All cases with LD had AD, but no case without AD had LD (p < 0.001). The side of greater displacement at L4/5 and the convex side of the lumbar curve were consistent in all cases. CONCLUSIONS: Despite AD being observed in LSS as well, LD was observed only in the ASD group. Radiographic parameters were worse when LD was seen, rather than AD.
Adult
;
Animals
;
Congenital Abnormalities
;
Humans
;
Incidence
;
Lordosis
;
Lumbar Vertebrae
;
Magnetic Resonance Imaging
;
Posture
;
Psoas Muscles
;
Rheumatic Diseases
;
Scoliosis
;
Spinal Stenosis
8.Correction to: New Advances in Human X Chromosome Status from a Developmental and Stem Cell Biology
Benjamin PATTERSON ; Yoshiaki TANAKA ; In Hyun PARK
Tissue Engineering and Regenerative Medicine 2018;15(1):125-125
Unfortunately, Acknowledgements section was missing in the originally published article.
9.Usefulness of Endoscopic Transpapillary Tissue Sampling for Malignant Biliary Strictures and Predictive Factors of Diagnostic Accuracy.
Hiroki TANAKA ; Shimpei MATSUSAKI ; Youichirou BABA ; Yoshiaki ISONO ; Tomohiro SASE ; Hiroshi OKANO ; Tomonori SAITO ; Katsumi MUKAI ; Tetsuya MURATA ; Hiroki TAOKA
Clinical Endoscopy 2018;51(2):174-180
BACKGROUND/AIMS: It is sometimes difficult to distinguish between malignant and benign biliary strictures using imaging studies alone, and pathological diagnosis is necessary. The aim of this study was to determine the usefulness of endoscopic transpapillary tissue sampling and factors predictive of diagnostic accuracy. METHODS: From April 2008 to December 2014, 136 patients underwent endoscopic transpapillary tissue sampling for malignant biliary strictures. The cytological and histological findings were reported as negative, suspicious, or positive. Suspicious and positive findings were defined as pathologically positive. RESULTS: The sensitivity was 65.0% for forceps biopsy, 49.5% for brush cytology, 46.2% for bile aspiration cytology, and 21.9% for endoscopic nasobiliary drainage cytology. The combination of these procedures improved the sensitivity (72.8%). Endoscopic transpapillary tissue sampling was more sensitive for lesions of biliary origin (91.4%) than for extrabiliary lesions (66.3%). In surgical cases, the sensitivity for tumors with an infiltrative growth pattern (53.3%) was significantly lower than for a tumor with an expanding or intermediate growth pattern (87.5%). CONCLUSIONS: Combining procedures can improve diagnostic accuracy. It may be possible to predict the sensitivity of endoscopic transpapillary tissue sampling by evaluating the etiology and tumor growth pattern using preoperative imaging studies.
Bile
;
Biliary Tract Neoplasms
;
Biopsy
;
Constriction, Pathologic*
;
Diagnosis
;
Drainage
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Humans
;
Pancreatic Neoplasms
;
Surgical Instruments
10.Effective Use of Over-The-Counter (OTC) Drugs during a Disaster:
Yoshiaki Shikamura ; Aika Tanaka ; Kenichi Negishi ; Hideo Shimodaira ; Susumu Wakabayashi ; Toshio Tsukahara ; Kaori Nomura ; Keiji Izushi ; Choichiro Miyazaki ; Mayumi Mochizuki ; Naoki Kamimura
Japanese Journal of Drug Informatics 2017;18(4):242-250
Objective: For effective use of over-the-counter (OTC) drugs that are provided as relief supplies during a disaster, we aimed to develop a list of OTC drugs that can be used during a disaster.
Methods: We obtained information about OTC drugs useful during a disaster by examining results of previous studies and lists of drugs used during a disaster. We analyzed this information with the expert pharmacist of disaster support and established a rationale for our list and developed “the List of Useful OTC Drugs During a Disaster” and “the Information Card on Useful OTC Drugs During a Disaster.”
Results: We developed our list of OTC drugs based on the following parameters: (1) while people with severe disorders (e.g. renal failure) are treated by medical teams, those with minor physical conditions are treated using OTC drugs and (2) those OTC drugs that can be used as substitutes for prescription drugs were preferably selected. The List of Useful OTC Drugs ()—During a Disaster (containing 56 items) was developed for use mainly by medical professionals. Further, pharmacists from disaster-relief medical teams may not always be available in disaster-stricken areas; therefore, the Information Card on Useful OTC Drugs During a Disaster was developed to enable disaster victims to independently make a certain level of decision. The information card contained pictograms to call the attention of the disaster victims.
Conclusion: Our results can provide a common tool for drug suppliers, medical professionals engaging in relief works in disaster-stricken areas, and disaster victims.


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