1.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
2.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
3.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
4.Effect of tranexamic acid on blood loss reduction in patients undergoing orthognathic surgery under hypotensive anesthesia: a single-center, retrospective, observational study
Keisuke HARADA ; Noritaka IMAMACHI ; Yuhei MATSUDA ; Masato HIRABAYASHI ; Yoji SAITO ; Takahiro KANNO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(2):86-93
Objectives:
Orthognathic surgery is a surgical procedure performed by intraoral approach with established and safe techniques; however, excessive blood loss has been reported in rare cases. In response, investigative efforts to identify methods to reduce the amount of blood loss have been made.Among such methods, the administration of tranexamic acid was reported to reduce the amount of intraoperative blood loss. However, few studies to date have reported the effect of tranexamic acid in orthognathic surgery under hypotensive anesthesia. The present study aimed to investigate the effect of the administration of tranexamic acid on intraoperative blood loss in patients undergoing bimaxillary (maxillary and mandibular) orthognathic surgery under hypotensive anesthesia.
Patients and Methods:
A total of 156 patients (mean age, 27.0±10.8 years) who underwent bimaxillary orthognathic surgery under hypotensive anesthesia performed by the same surgeon between June 2013 and February 2022 were included in this study. The following data were collected from the medical records of each patient: background factors (age, sex, and body mass index), use of tranexamic acid, surgical procedures, previous medical history, duration of surgery, American Society of Anesthesiology physical status findings before surgery, intraoperative blood loss as a primary outcome, in–out balance, and blood test results. Descriptive statistics were calculated for statistical analysis, and a t-test and the chi-squared test were used for between-group comparisons. Group comparisons were performed after 1:1 propensity score matching to adjust for confounding factors. Statistical significance was set at P<0.05.
Results:
Comparison between the groups based on the use of tranexamic acid revealed a significant difference in operation time. Propensity score matching analysis revealed that intraoperative blood loss was significantly lower in the tranexamic acid group.
Conclusion
The administration of tranexamic acid was effective in reducing intraoperative blood loss in patients undergoing bimaxillary orthognathic surgery under hypotensive anesthesia.
5.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.
6.Efficacy of edoxaban for the treatment of gynecological cancer-associated venous thromboembolism: analysis of Japanese real-world data
Suguru ODAJIMA ; Toshiyuki SEKI ; Sayako KATO ; Keisuke TOMITA ; Yuichi SHOBURU ; Eitaro SUZUKI ; Masataka TAKENAKA ; Motoaki SAITO ; Hirokuni TAKANO ; Kyosuke YAMADA ; Aikou OKAMOTO
Journal of Gynecologic Oncology 2022;33(5):e62-
Objective:
Direct oral anticoagulants (DOACs) are increasingly being used for the treatment of cancer-associated venous thromboembolism (CAT). However, there is limited evidence of the efficacy of DOACs for the treatment of gynecological CAT. Thus, this study aimed to investigate the efficacy and safety of edoxaban for the treatment of gynecological CAT using Japanese real-world data.
Methods:
We reviewed the medical records of patients with 371 gynecological cancer who received edoxaban or vitamin K antagonist (VKA) between January 2011 and December 2018.
Results:
Altogether, 211 and 160 patients were treated with edoxaban and VKA, respectively. Fourteen patients (6.8%) in the edoxaban group and 22 (13.8%) in the VKA group showed recurrence of venous thromboembolism (VTE). Cumulative VTE recurrence was not significantly different between the 2 groups (p=0.340). Adverse events occurred in 15 (7.1%) and 11 (6.9%) patients in the edoxaban and VKA groups, respectively (p=0.697). Subgroup analysis of the edoxaban and VKA groups according to different tumor types, including ovarian, endometrial, and cervical cancer, showed equivalent outcomes in terms of VTE recurrence and adverse events. Patients without pulmonary embolism (PE) were mostly omitted from initial unfractionated heparin (UFH) therapy prior to administration of edoxaban. However, this did not increase the recurrence of VTE.
Conclusion
This study confirmed that edoxaban is effective and safe for the treatment of gynecological CAT. This finding was consistent for different types of gynecological cancer. Additionally, initial UFH therapy prior to the administration of edoxaban may be unnecessary for patients without PE.
7.Innate Lymphoid Cells in the Airways: Their Functions and Regulators
Keisuke ORIMO ; Hirohisa SAITO ; Kenji MATSUMOTO ; Hideaki MORITA
Allergy, Asthma & Immunology Research 2020;12(3):381-398
Since the airways are constantly exposed to various pathogens and foreign antigens, various kinds of cells in the airways—including structural cells and immune cells—interact to form a precise defense system against pathogens and antigens that involve both innate immunity and acquired immunity. Accumulating evidence suggests that innate lymphoid cells (ILCs) play critical roles in the maintenance of tissue homeostasis, defense against pathogens and the pathogenesis of inflammatory diseases, especially at body surface mucosal sites such as the airways. ILCs are activated mainly by cytokines, lipid mediators and neuropeptides that are produced by surrounding cells, and they produce large amounts of cytokines that result in inflammation. In addition, ILCs can change their phenotype in response to stimuli from surrounding cells, which enables them to respond promptly to microenvironmental changes. ILCs exhibit substantial heterogeneity, with different phenotypes and functions depending on the organ and type of inflammation, presumably because of differences in microenvironments. Thus, ILCs may be a sensitive detector of microenvironmental changes, and analysis of their phenotype and function at local sites may enable us to better understand the microenvironment in airway diseases. In this review, we aimed to identify molecules that either positively or negatively influence the function and/or plasticity of ILCs and the sources of the molecules in the airways in order to examine the pathophysiology of airway inflammatory diseases and facilitate the issues to be solved.
Adaptive Immunity
;
Cellular Microenvironment
;
Cytokines
;
Homeostasis
;
Immunity, Innate
;
Inflammation
;
Lymphocytes
;
Neuropeptides
;
Phenotype
;
Plastics
;
Population Characteristics
;
Respiratory Tract Diseases
8.Switching to systemic therapy after locoregionaltreatment failure: Definition and best timing
Sadahisa OGASAWARA ; Yoshihiko OOKA ; Keisuke KOROKI ; Susumu MARUTA ; Hiroaki KANZAKI ; Kengo KANAYAMA ; Kazufumi KOBAYASHI ; Soichiro KIYONO ; Masato NAKAMURA ; Naoya KANOGAWA ; Tomoko SAITO ; Takayuki KONDO ; Eiichiro SUZUKI ; Shingo NAKAMOTO ; Akinobu TAWADA ; Tetsuhiro CHIBA ; Makoto ARAI ; Jun KATO ; Naoya KATO
Clinical and Molecular Hepatology 2020;26(2):155-162
In patients with unresectable hepatocellular carcinoma (HCC) without both macrovascular invasion and extrahepatic metastasis, the initial treatment choice recommended is transarterial chemoembolization (TACE). Before sorafenib came into wide use, TACE had been pointlessly carried out repeatedly. It was in the early 2010s that the concept of TACE refractory was advocated. Two retrospective studies from Japan indicated that conversion from TACE to sorafenib the day after patients were deemed as TACE refractory improved overall survival compared with continued TACE, according to the definition by the Japan Society of Hepatology. Nowadays, phase 3 trials have shown clinical benefits of several novel molecular target agents. Compared with the era of sorafenib, sequential treatments with these molecular target agents have gradually prolonged patients’ survival and have become major strategies in patients with HCC. Taking these together, conversion from TACE to systemic therapies at the time of TACE refractory, compared with before, may have a greater impact on survival and may be considered deeper in the decisions-making process in patients with unresectable HCC who are candidate for TACE. Up-to-date information on the concept of TACE refractory is summarized in this review. We believe that the survival of patients with unresectable HCC without both macrovascular invasion and extrahepatic metastasis may be dramatically improved by optimal timing of TACE refractory and switching to systemic therapies.
9.Infective Endocarditis with an Acute Myocardial Infarction
Keisuke Nonoyama ; Takayuki Saito ; Yukihide Numata ; Yuji Yamanaka
Japanese Journal of Cardiovascular Surgery 2016;45(3):121-125
An 80-year-old man was referred to our hospital due to anorexia and loss of body weight. Blood examination showed a severe inflammatory reaction and Streptococcus oralis was detected in his blood culture. Echocardiogram demonstrated severe aortic valve regurgitation and vegetation located on the valve. Although we diagnosed infective endocarditis (IE) and started to treat with antibiotics, the patient refused treatment and was discharged. Ten days later, he was readmitted to our hospital because of chest pain. Electrocardiogram demonstrated an anteroseptal acute myocardial infarction and an emergency coronary angiogram revealed complete obstruction of the left anterior descending coronary artery (LAD). He was successfully treated with thrombus aspiration using a catheter device. Pathological examination of the thrombus revealed that the coronary embolism was caused by infective endocarditis (IE). To prevent re-embolization, we performed aortic valve replacement 8 days after the intervention and CABG was also carried out for residual stenosis on the LAD. Coronary embolism caused by IE is a rare problem. We reported a case of AMI associated with IE that was initially treated with thrombus aspiration which was followed by aortic valve replacement.
10.Hochuekkito Efficacy in Late-Onset Hypogonadism (LOH) Patients
Tomoka KUMAMOTO ; Shinichi HISASUE ; Mitsuko YASUDA ; Hisamitsu IDE ; Toshiyuki CHINA ; Masahiro INOUE ; Keisuke SAITO ; Shuji ISOTANI ; Raizo YAMAGUCHI ; Satoru MUTO ; Shigeo HORIE
Kampo Medicine 2013;64(3):160-165
The purpose of this study is to evaluate the efficacy of hochuekkito for late-onset hypogonadism (LOH) patients. We administered hochuekkito 7.5 g/day for 8 weeks to 47 patients with LOH whose AMS scale was more than 27. We assessed the patients' symptom change with the AMS, SHIM, SDS, BDI, and SF-36. We measured their endocrine profiles and levels of their cytokines. At the end of study, 31 of 47 patients were evaluable. No significant difference in subjective symptoms was seen with any questionnaire after 8 weeks hochuekkito administration. However, hochuekkito significantly increased free testosterone and decreased ACTH/cortisol levels. Thus we believe hochuekkito is beneficial for the treatment of LOH.


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