1.Usefulness of three-dimensional fast imaging employing steady-state acquisition MRI of large vessel occlusion for detecting occluded middle cerebral artery and internal carotid artery before acute mechanical thrombectomy
Kimitoshi SATO ; Yasukazu HIJIKATA ; Naoki OMURA ; Takanori MIKI ; Hiroto KAKITA ; Takashi YOSHIDA ; Fuminori SHIMIZU
Journal of Cerebrovascular and Endovascular Neurosurgery 2021;23(3):201-209
Objective:
Acute mechanical thrombectomy (AMT) in patients with acute ischemic stroke from large vessel occlusion (LVO) is performed without directly identifying the occluded vessels. In this study, we evaluated whether 1.5 T magnetic resonance imaging (MRI) with 3D-fast imaging employing steady-state acquisition (FIESTA) could visualize the occluded intracranial middle cerebral artery (MCA) and internal carotid artery (ICA) before AMT.
Methods:
This retrospective study included 21 consecutive patients who underwent time-of-flight magnetic resonance angiography (TOF MRA) and 3D-FIESTA MRI immediately before AMT. The patients also underwent TOF MRA after AMT and achieved TICI 2b or 3 by AMT at our hospital between February 2018 and April 2019. When LVO in the anterior circulation was detected by TOF MRA, 3D-FIESTA MRI was additionally performed. Then, the occluded intracranial MCA and ICA, including their branches, were constructed on the workstation with volume rendering. The obtained images were fused with the TOF MRA images to create combined 3D images.
Results:
The length and top-to-bottom distance of the affected M1 segment (calculated by the ipsilateral-to-contralateral ratio) were 1.29 and 1.17, respectively, on 3D-FIESTA MRI before AMT and 1.34 and 1.24, respectively, on TOF MRA after AMT. We assessed the number of M2 segments branching from the affected M1/M2 junction and visualized the affected anterior temporal artery. The 3D-FIESTA MRI before AMT and TOF MRA after AMT were consistent in all patients, except for two who moved vigorously during imaging.
Conclusions
Images acquired by 1.5T 3D-FIESTA MRI can visualize to predict the existing path of the occluded MCA and ICA before AMT in patients with LVO of the anterior circulation.
2.Urinary N-terminal pro-B-type natriuretic peptide as a biomarker for cardiovascular events in a general Japanese population: the Hisayama Study.
Keisuke YAMASAKI ; Jun HATA ; Tomomi IDE ; Takuya NAGATA ; Satoko SAKATA ; Daigo YOSHIDA ; Takanori HONDA ; Yoichiro HIRAKAWA ; Toshiaki NAKANO ; Takanari KITAZONO ; Hiroyuki TSUTSUI ; Toshiharu NINOMIYA
Environmental Health and Preventive Medicine 2021;26(1):47-47
BACKGROUND:
Epidemiological evidence has shown that serum N-terminal pro-brain natriuretic peptide (NT-proBNP) concentrations, a diagnostic biomarker for heart failure, are positively associated with cardiovascular risk. Since NT-proBNP in serum is excreted in urine, it is hypothesized that urinary NT-proBNP concentrations are correlated with serum concentrations and linked with cardiovascular risk in the general population.
METHODS:
A total of 3060 community-dwelling residents aged ≥ 40 years without history of cardiovascular disease (CVD) were followed up for a median of 8.3 years (2007-2015). Serum and urinary concentrations of NT-proBNP at baseline were compared. The hazard ratios (HRs) and their 95% confidence intervals (CIs) for the association between NT-proBNP concentrations and the risk of developing CVD were computed using the Cox proportional hazards model.
RESULTS:
The median values (interquartile ranges) of serum and urinary NT-proBNP concentrations at baseline were 56 (32-104) pg/mL and 20 (18-25) pg/mL, respectively. There was a strong quadratic correlation between the serum and urinary concentrations of NT-proBNP (coefficient of determination [R
CONCLUSIONS
The present study demonstrated that urinary NT-proBNP concentrations were well-correlated with serum concentrations and were positively associated with cardiovascular risk. Given that urine sampling is noninvasive and does not require specially trained personnel, urinary NT-proBNP concentrations have the potential to be an easy and useful biomarker for detecting people at higher cardiovascular risk.
Adult
;
Aged
;
Aged, 80 and over
;
Biomarkers/urine*
;
Cardiovascular Diseases/urine*
;
Female
;
Heart Failure/diagnosis*
;
Humans
;
Incidence
;
Japan/epidemiology*
;
Male
;
Middle Aged
;
Natriuretic Peptide, Brain/urine*
;
Peptide Fragments/urine*
;
Prospective Studies
;
Risk Assessment
3.Usefulness of three-dimensional fast imaging employing steady-state acquisition MRI of large vessel occlusion for detecting occluded middle cerebral artery and internal carotid artery before acute mechanical thrombectomy
Kimitoshi SATO ; Yasukazu HIJIKATA ; Naoki OMURA ; Takanori MIKI ; Hiroto KAKITA ; Takashi YOSHIDA ; Fuminori SHIMIZU
Journal of Cerebrovascular and Endovascular Neurosurgery 2021;23(3):201-209
Objective:
Acute mechanical thrombectomy (AMT) in patients with acute ischemic stroke from large vessel occlusion (LVO) is performed without directly identifying the occluded vessels. In this study, we evaluated whether 1.5 T magnetic resonance imaging (MRI) with 3D-fast imaging employing steady-state acquisition (FIESTA) could visualize the occluded intracranial middle cerebral artery (MCA) and internal carotid artery (ICA) before AMT.
Methods:
This retrospective study included 21 consecutive patients who underwent time-of-flight magnetic resonance angiography (TOF MRA) and 3D-FIESTA MRI immediately before AMT. The patients also underwent TOF MRA after AMT and achieved TICI 2b or 3 by AMT at our hospital between February 2018 and April 2019. When LVO in the anterior circulation was detected by TOF MRA, 3D-FIESTA MRI was additionally performed. Then, the occluded intracranial MCA and ICA, including their branches, were constructed on the workstation with volume rendering. The obtained images were fused with the TOF MRA images to create combined 3D images.
Results:
The length and top-to-bottom distance of the affected M1 segment (calculated by the ipsilateral-to-contralateral ratio) were 1.29 and 1.17, respectively, on 3D-FIESTA MRI before AMT and 1.34 and 1.24, respectively, on TOF MRA after AMT. We assessed the number of M2 segments branching from the affected M1/M2 junction and visualized the affected anterior temporal artery. The 3D-FIESTA MRI before AMT and TOF MRA after AMT were consistent in all patients, except for two who moved vigorously during imaging.
Conclusions
Images acquired by 1.5T 3D-FIESTA MRI can visualize to predict the existing path of the occluded MCA and ICA before AMT in patients with LVO of the anterior circulation.
4.Risk Factors for Prolonged Hospital Stay after Endoscopy
Toshihiro NISHIZAWA ; Shuntaro YOSHIDA ; Osamu TOYOSHIMA ; Tatsuya MATSUNO ; Masataka IROKAWA ; Toru ARANO ; Hirotoshi EBINUMA ; Hidekazu SUZUKI ; Takanori KANAI ; Kazuhiko KOIKE
Clinical Endoscopy 2021;54(6):851-856
Background/Aims:
The recovery room used after endoscopy has limited capacity, and an efficient flow of the endoscopy unit is desired. We investigated the duration of hospital stay after endoscopy and the risk factors for prolonged hospital stay among outpatients.
Methods:
We retrospectively studied consecutive patients who underwent esophagogastroduodenoscopy or colonoscopy at the Toyoshima Endoscopy Clinic. We collected data on age, sex, body weight, midazolam and pethidine dosage, respiratory depression during endoscopy, and duration of hospital stay after endoscopy (scope out to check out). Risk factors for prolonged hospital stay (>100 minutes) were identified using multiple logistic regression analysis.
Results:
We enrolled 3,898 patients, including 3,517 (90.2%) patients tested under sedation and 381 (9.8%) patients tested without sedation. Overall, 442 (11.3%) patients had prolonged stay (>100 min). The mean time difference between sedation group and non-sedation group was 44.2 minutes for esophagogastroduodenoscopy and 39.1 minutes for colonoscopy. Age (odds ratio [OR], 1.025; 95% confidence interval [CI], 1.014−1.036), female sex (OR, 1.657; 95% CI, 1.220−2.249), and midazolam dose (OR, 1.019; 95% CI, 1.013−1.026) were independently associated with prolonged hospital stay after esophagogastroduodenoscopy, with similar results for colonoscopy.
Conclusions
Old age, female sex, and midazolam dose were independent risk factors for prolonged hospital stay after endoscopy.
5.Ongoing rubella epidemic in Osaka, Japan, in 2018–2019
Daiki Kanbayashi ; Takako Kurata ; Hideyuki Kubo ; Seiji Yamamoto ; Kazutaka Egawa ; Yuki Hirai ; Kazuma Okada ; Ryo Ikemori ; Takahiro Yumisashi ; Akira Yamamoto ; Hideki Yoshida ; Takanori Hirayama ; Kazuyoshi Ikuta ; Kazushi Motomura ; Atsushi Kaida
Western Pacific Surveillance and Response 2020;11(2):48-50
Abstract
A large rubella epidemic is currently ongoing since 2018 in Osaka, Japan. The detected rubella viruses were classified into genotypes 1E lineage 2 and 2B lineage 1. These strains may have been imported from endemic countries, and these viruses spread within the susceptible population.
6.5-Aminosalicylic acid intolerance is associated with a risk of adverse clinical outcomes and dysbiosis in patients with ulcerative colitis
Shinta MIZUNO ; Keiko ONO ; Yohei MIKAMI ; Makoto NAGANUMA ; Tomohiro FUKUDA ; Kazuhiro MINAMI ; Tatsuhiro MASAOKA ; Soichiro TERADA ; Takeshi YOSHIDA ; Keiichiro SAIGUSA ; Norimichi HIRAHARA ; Hiroaki MIYATA ; Wataru SUDA ; Masahira HATTORI ; Takanori KANAI
Intestinal Research 2020;18(1):69-78
Background/Aims:
5-Aminosalicylic acid (ASA) causes intolerance reactions in some patients. This study was performed to examine the prognosis of patients with ulcerative colitis (UC) and 5-ASA intolerance, and to evaluate the potential interaction between 5-ASA intolerance and the intestinal microbiota.
Methods:
We performed a retrospective cohort study of patients with UC who visited participating hospitals. The primary endpoint was to compare the incidence of hospitalization within 12 months between the 5-ASA intolerance group and the 5-ASA tolerance group. The secondary endpoint was to compare the risk of adverse clinical outcomes after the start of biologics between the 2 groups. We also assessed the correlation between 5-ASA intolerance and microbial change in an independently recruited cohort of patients with UC.
Results:
Of 793 patients, 59 (7.4%) were assigned to the 5-ASA intolerance group and 734 (92.5%) were assigned to the 5-ASA tolerance group. The admission rate and incidence of corticosteroid use were significantly higher in the intolerance than tolerance group (P< 0.001). In 108 patients undergoing treatment with anti-tumor necrosis factor biologics, 5-ASA intolerance increased the incidence of additional induction therapy after starting biologics (P< 0.001). The 5-ASA intolerance group had a greater abundance of bacteria in the genera Faecalibacterium, Streptococcus, and Clostridium than the 5-ASA tolerance group (P< 0.05).
Conclusions
In patients with UC, 5-ASA intolerance is associated with a risk of adverse clinical outcomes and dysbiosis. Bacterial therapeutic optimization of 5-ASA administration may be important for improving the prognosis of patients with UC.
7.Two Cases of Trousseau's Syndrome with Gynecologic Cancer Detected After Cerebral Infarction
Takanori YOSHIDA ; Toyoharu WATANABE ; Tomo TAKENAGA ; Yujiro MITO ; Keisuke TAGUCHI ; Yasuo AKIBA
Journal of the Japanese Association of Rural Medicine 2019;68(1):88-93
Trousseau's syndrome is a condition in which thromboembolic events are triggered by hypercoagulation caused by a malignancy. Here, we report two cases in which gynecologic cancer was detected after cerebral infarction. Patient 1 was a 66-year-old gravida 0, para 0 who presented with left-sided arm and leg weakness. Head magnetic resonance imaging (MRI) facilitated a diagnosis of cerebral infarction. Subsequent contrast computed tomography (CT) revealed an ovarian tumor, and she underwent surgery on day 8 after admission. The tumor was diagnosed as ovarian clear cell carcinoma on pathological examination. She received adjuvant chemotherapy and the cancer has not progressed in more than 2 years after the surgery. Patient 2 was a 41-year-old gravida 1, para 1 who presented with impairment of consciousness, right hemiplegia, and aphasia. Head MRI facilitated a diagnosis of cerebral infarction. Contrast MRI and contrast CT findings were suggestive of endometrial cancer, and she underwent surgery on day 19 after admission. The cancer was diagnosed as grade 3 endometrial cancer on pathological analysis. She received adjuvant chemotherapy and the cancer has not progressed in more than 4 years after the surgery. Although treatment of the primary disease is considered to affect prognosis in Trousseau’s syndrome, many patients have poor survival prospects because, when detected, their cancer is too advanced to be treated surgically. These cases illustrate the need for close cooperation with other departments such as neurology and cerebrovascular surgery to ensure that these cancers are diagnosed quickly and the opportunity to start multimodality treatment is not missed.
8.Induction of Labor and Outcomes of Late-Term Pregnancy in Our Hospital
Tomo TAKENAGA ; Yasuo AKIBA ; Keisuke TAGUCHI ; Yujiro MITO ; Takanori YOSHIDA
Journal of the Japanese Association of Rural Medicine 2019;68(2):120-126
In Japan, there are no predetermined guidelines on the management of pregnant women at 41 weeks of pregnancy. In our hospital, pregnant women at 41 weeks of pregnancy are candidates for induction, but induction may result in emergency caesarean section, atonic bleeding postpartum hemorrhage, and neonatal emergencies with admission to the Neonatal Intensive Care Unit (NICU). Therefore, we conducted a retrospective investigation to determine which cases are likely to end in such events. Our hospital recorded a total of 3,492 deliveries during the period 2013-2015. Of these, 382 pregnancies were delivered at 41 weeks. We compared the labor induction group and the spontaneous delivery group. The rate of emergency caesarean section for multiparas was 1% and was as high as 21% for primiparas, so we focused on primiparas in this study. The 258 primiparas from among all 382 cases were divided into the induction group (n=122) and the spontaneous group (n=136). Compared with the spontaneous group, the induction group had older primiparas, more body weight gain during pregnancy, and a high risk of emergency caesarean section. There was no significant difference in the proportion of neonates admitted to the NICU. In the analysis focused on the induction group, the rate of emergency cesarean section increased as the number of cases requiring induction and the number of elderly primiparas increased. With the recent increasing age of primiparas, it is necessary to educate women on the risks of weight gain during pregnancy.
9.Influence of Water Properties on the Contents of Aconitine-Type Diester Alkaloids in the Decoctions of Unprocessed Aconite Root
Tsukasa FUEKI ; Masato YOSHIDA ; Koichiro TANAKA ; Koki CHIBA ; Tadanori KATO ; Takao NAMIKI ; Chikano SHIBAYAMA ; Kousuke FUJITA ; Takao SUNAGA ; Takanori MATSUOKA ; Masashi BEPPU ; Toshiaki MAKINO
Kampo Medicine 2018;69(4):336-345
The decoctions of unprocessed aconite root (uzu) were prepared with the tap water samples collected in Tianjin and Shanghai in China, and the contents of alkaloids in the decoctions were compared to those prepared with purified water or with tap water collected in Niigata, Japan. The contents of aconitine-type diester alkaloids (ADA) in the decoctions prepared with tap water collected in China were significantly lower than those with purified water or tap water in Niigata. It was speculated that this difference appeared by buffering effect of bicarbonic anion in tap water in China to decline pH of the decoction. When uzu was decocted with glycyrrhiza, ginger, or jujube, the contents of ADA in the decoctions exhibited the tendency to have higher levels than those prepared using unprocessed aconite root singly, and also this tendency was observed more remarkably when the decoctions were prepared with tap water collected in China. It was suggested that even the decocting period was fixed, unexpected change of the contents of ADAs might be induced by the differences in the properties of water used for decoction or the crude drugs decocted with aconite root. The physicians in the era when “Songban Shanghanlun” had established may have adjusted the contents of ADA in the decoction by carefully choosing the crude drugs combined to aconite root.
10.5-Aminosalicylic acid aggravates colitis mimicking exacerbation of ulcerative colitis.
Jun MIYOSHI ; Katsuyoshi MATSUOKA ; Atsushi YOSHIDA ; Makoto NAGANUMA ; Tadakazu HISAMATSU ; Tomoharu YAJIMA ; Nagamu INOUE ; Susumu OKAMOTO ; Yasushi IWAO ; Haruhiko OGATA ; Fumiaki UENO ; Toshifumi HIBI ; Takanori KANAI
Intestinal Research 2018;16(4):635-640
Ulcerative colitis (UC) is one of the major clinical phenotypes of inflammatory bowel diseases. Although 5-aminosalicylic acid (5-ASA) is widely used for UC and its efficacy and safety have been demonstrated, a few patients paradoxically develop a severe exacerbation of colitis by 5-ASA administration. It is crucial to know clinical features including endoscopic findings in this condition for making a correct diagnosis and a prompt decision to withdraw the medication. Here, we report case series with UC exacerbated by 5-ASA. Medical records of 8 UC patients experiencing an exacerbation of colitis after induction of 5-ASA that was improved by the withdrawal of 5-ASA but also re-aggravated by dose increase or re-administration of 5-ASA were reviewed. The patients were newly diagnosed with UC, started 5-ASA and developed an exacerbation in approximately 2 to 3 weeks. They did not appear to have systemic allergic reactions. Seven of the 8 patients had a high fever. Three of 5 patients who undertook total colonoscopy showed right-side-dominant colitis. These findings suggest clinical characteristics in this condition. Further assessment of clinical and endoscopic features in more cases is necessary for establishing diagnostic criteria and understanding underlying mechanisms in those cases where 5-ASA aggravates the colitis.
Colitis*
;
Colitis, Ulcerative*
;
Colonoscopy
;
Diagnosis
;
Fever
;
Humans
;
Hypersensitivity
;
Inflammatory Bowel Diseases
;
Medical Records
;
Mesalamine*
;
Phenotype
;
Ulcer*


Result Analysis
Print
Save
E-mail