1.Screening ability of dental students to detect osteoporosis on dental panoramic radiographs
Hizuru OSANAI ; Hiroko KUROIWA ; Shinichiro YAMADA ; Noriyuki SUGINO ; Takashi NAKAMOTO ; Masahiko OHTSUKA ; Yoshikazu SUEI ; Naoya KAKIMOTO ; Akira TAGUCHI
Osteoporosis and Sarcopenia 2024;10(4):145-150
Objectives:
Postmenopausal women with osteoporosis are frequently underdiagnosed. In Japan, general dental practitioners have begun using the cortical shape of the mandible on dental panoramic radiographs (PRs) to identify and refer women at risk of osteoporosis to medical professionals. It remains unclear whether dental students, after relevant education, possess the ability to identify these at-risk individuals. This study evaluated the ability of dental students to screen for osteoporosis on PRs.
Methods:
A cohort of 113 fifth-year dental students participated in a lecture on osteoporosis screening using PRs.The students then categorized the mandibular inferior cortex on PRs from 30 postmenopausal women (11 with osteoporosis) as normal, mildly to moderately eroded, or severely eroded. Interobserver agreement between the students and an expert oral radiologist using two cortical groups (normal to moderately eroded and severely eroded) was assessed through kappa statistics. Screening ability for osteoporosis detection by identifying severely eroded cortices was calculated and compared with that of the Osteoporosis Self-assessment Tool for Asians (OSTA).
Results:
Twenty-one (18.6%) students demonstrated moderate to substantial agreement with the expert. The mean sensitivity, specificity, and positive and negative predictive values for these students in identifying osteoporosis were 60.2%, 88.0%, 76.3%, and 80.0%, respectively. For the OSTA, sensitivity, specificity, and positive and negative predictive values were 27.3%, 68.4%, 33.3%, and 61.9%, respectively.
Conclusions
Even with minimal education, approximately one-fourth of dental students may accurately identify postmenopausal women with osteoporosis on PRs, outperforming questionnaire-based screening tools.
2.Screening ability of dental students to detect osteoporosis on dental panoramic radiographs
Hizuru OSANAI ; Hiroko KUROIWA ; Shinichiro YAMADA ; Noriyuki SUGINO ; Takashi NAKAMOTO ; Masahiko OHTSUKA ; Yoshikazu SUEI ; Naoya KAKIMOTO ; Akira TAGUCHI
Osteoporosis and Sarcopenia 2024;10(4):145-150
Objectives:
Postmenopausal women with osteoporosis are frequently underdiagnosed. In Japan, general dental practitioners have begun using the cortical shape of the mandible on dental panoramic radiographs (PRs) to identify and refer women at risk of osteoporosis to medical professionals. It remains unclear whether dental students, after relevant education, possess the ability to identify these at-risk individuals. This study evaluated the ability of dental students to screen for osteoporosis on PRs.
Methods:
A cohort of 113 fifth-year dental students participated in a lecture on osteoporosis screening using PRs.The students then categorized the mandibular inferior cortex on PRs from 30 postmenopausal women (11 with osteoporosis) as normal, mildly to moderately eroded, or severely eroded. Interobserver agreement between the students and an expert oral radiologist using two cortical groups (normal to moderately eroded and severely eroded) was assessed through kappa statistics. Screening ability for osteoporosis detection by identifying severely eroded cortices was calculated and compared with that of the Osteoporosis Self-assessment Tool for Asians (OSTA).
Results:
Twenty-one (18.6%) students demonstrated moderate to substantial agreement with the expert. The mean sensitivity, specificity, and positive and negative predictive values for these students in identifying osteoporosis were 60.2%, 88.0%, 76.3%, and 80.0%, respectively. For the OSTA, sensitivity, specificity, and positive and negative predictive values were 27.3%, 68.4%, 33.3%, and 61.9%, respectively.
Conclusions
Even with minimal education, approximately one-fourth of dental students may accurately identify postmenopausal women with osteoporosis on PRs, outperforming questionnaire-based screening tools.
3.Screening ability of dental students to detect osteoporosis on dental panoramic radiographs
Hizuru OSANAI ; Hiroko KUROIWA ; Shinichiro YAMADA ; Noriyuki SUGINO ; Takashi NAKAMOTO ; Masahiko OHTSUKA ; Yoshikazu SUEI ; Naoya KAKIMOTO ; Akira TAGUCHI
Osteoporosis and Sarcopenia 2024;10(4):145-150
Objectives:
Postmenopausal women with osteoporosis are frequently underdiagnosed. In Japan, general dental practitioners have begun using the cortical shape of the mandible on dental panoramic radiographs (PRs) to identify and refer women at risk of osteoporosis to medical professionals. It remains unclear whether dental students, after relevant education, possess the ability to identify these at-risk individuals. This study evaluated the ability of dental students to screen for osteoporosis on PRs.
Methods:
A cohort of 113 fifth-year dental students participated in a lecture on osteoporosis screening using PRs.The students then categorized the mandibular inferior cortex on PRs from 30 postmenopausal women (11 with osteoporosis) as normal, mildly to moderately eroded, or severely eroded. Interobserver agreement between the students and an expert oral radiologist using two cortical groups (normal to moderately eroded and severely eroded) was assessed through kappa statistics. Screening ability for osteoporosis detection by identifying severely eroded cortices was calculated and compared with that of the Osteoporosis Self-assessment Tool for Asians (OSTA).
Results:
Twenty-one (18.6%) students demonstrated moderate to substantial agreement with the expert. The mean sensitivity, specificity, and positive and negative predictive values for these students in identifying osteoporosis were 60.2%, 88.0%, 76.3%, and 80.0%, respectively. For the OSTA, sensitivity, specificity, and positive and negative predictive values were 27.3%, 68.4%, 33.3%, and 61.9%, respectively.
Conclusions
Even with minimal education, approximately one-fourth of dental students may accurately identify postmenopausal women with osteoporosis on PRs, outperforming questionnaire-based screening tools.
4.Screening ability of dental students to detect osteoporosis on dental panoramic radiographs
Hizuru OSANAI ; Hiroko KUROIWA ; Shinichiro YAMADA ; Noriyuki SUGINO ; Takashi NAKAMOTO ; Masahiko OHTSUKA ; Yoshikazu SUEI ; Naoya KAKIMOTO ; Akira TAGUCHI
Osteoporosis and Sarcopenia 2024;10(4):145-150
Objectives:
Postmenopausal women with osteoporosis are frequently underdiagnosed. In Japan, general dental practitioners have begun using the cortical shape of the mandible on dental panoramic radiographs (PRs) to identify and refer women at risk of osteoporosis to medical professionals. It remains unclear whether dental students, after relevant education, possess the ability to identify these at-risk individuals. This study evaluated the ability of dental students to screen for osteoporosis on PRs.
Methods:
A cohort of 113 fifth-year dental students participated in a lecture on osteoporosis screening using PRs.The students then categorized the mandibular inferior cortex on PRs from 30 postmenopausal women (11 with osteoporosis) as normal, mildly to moderately eroded, or severely eroded. Interobserver agreement between the students and an expert oral radiologist using two cortical groups (normal to moderately eroded and severely eroded) was assessed through kappa statistics. Screening ability for osteoporosis detection by identifying severely eroded cortices was calculated and compared with that of the Osteoporosis Self-assessment Tool for Asians (OSTA).
Results:
Twenty-one (18.6%) students demonstrated moderate to substantial agreement with the expert. The mean sensitivity, specificity, and positive and negative predictive values for these students in identifying osteoporosis were 60.2%, 88.0%, 76.3%, and 80.0%, respectively. For the OSTA, sensitivity, specificity, and positive and negative predictive values were 27.3%, 68.4%, 33.3%, and 61.9%, respectively.
Conclusions
Even with minimal education, approximately one-fourth of dental students may accurately identify postmenopausal women with osteoporosis on PRs, outperforming questionnaire-based screening tools.
5.Screening ability of dental students to detect osteoporosis on dental panoramic radiographs
Hizuru OSANAI ; Hiroko KUROIWA ; Shinichiro YAMADA ; Noriyuki SUGINO ; Takashi NAKAMOTO ; Masahiko OHTSUKA ; Yoshikazu SUEI ; Naoya KAKIMOTO ; Akira TAGUCHI
Osteoporosis and Sarcopenia 2024;10(4):145-150
Objectives:
Postmenopausal women with osteoporosis are frequently underdiagnosed. In Japan, general dental practitioners have begun using the cortical shape of the mandible on dental panoramic radiographs (PRs) to identify and refer women at risk of osteoporosis to medical professionals. It remains unclear whether dental students, after relevant education, possess the ability to identify these at-risk individuals. This study evaluated the ability of dental students to screen for osteoporosis on PRs.
Methods:
A cohort of 113 fifth-year dental students participated in a lecture on osteoporosis screening using PRs.The students then categorized the mandibular inferior cortex on PRs from 30 postmenopausal women (11 with osteoporosis) as normal, mildly to moderately eroded, or severely eroded. Interobserver agreement between the students and an expert oral radiologist using two cortical groups (normal to moderately eroded and severely eroded) was assessed through kappa statistics. Screening ability for osteoporosis detection by identifying severely eroded cortices was calculated and compared with that of the Osteoporosis Self-assessment Tool for Asians (OSTA).
Results:
Twenty-one (18.6%) students demonstrated moderate to substantial agreement with the expert. The mean sensitivity, specificity, and positive and negative predictive values for these students in identifying osteoporosis were 60.2%, 88.0%, 76.3%, and 80.0%, respectively. For the OSTA, sensitivity, specificity, and positive and negative predictive values were 27.3%, 68.4%, 33.3%, and 61.9%, respectively.
Conclusions
Even with minimal education, approximately one-fourth of dental students may accurately identify postmenopausal women with osteoporosis on PRs, outperforming questionnaire-based screening tools.
6.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.
7.Reoperation after Coronary Artery Bypass Grafting; On-Pump Beating Heart Minimally Invasive Mitral Valve Replacement for Single Leaflet Device Attachment after MitraClip Placement
Tomonori KOGA ; Noriyuki HATANAKA ; Yuuki SETOGAWA ; Takashi UEDA
Japanese Journal of Cardiovascular Surgery 2022;51(2):110-113
A 50-year-old man with a history of coronary artery bypass grafting (CABG) 5 years prior to presentation underwent MitraClip placement for severe mitral regurgitation. Subsequently, he underwent on-pump beating heart endoscopic minimally invasive cardiac surgery (MICS) for mitral valve replacement for acute heart failure secondary to single leaflet device attachment. Endoscopic MICS via a right small thoracotomy approach is useful for reoperation after CABG in patients with a high risk of graft injury. Beating-heart surgery may be an effective option to avoid the risks associated with prolonged cardiac arrest time in patients with low left ventricular function.
8.Comparison of Characteristics of Streptococcus dysgalactiae subsp. equisimilis Isolates Causing Repetitive vs Single Infections
Tomohiro FUJITA ; Haruno YOSHIDA ; Shunsuke OSAKA ; Yoneji HIROSE ; Mieko GOTO ; Noriyuki NAGANO ; Takashi TAKAHASHI
Annals of Laboratory Medicine 2019;39(5):488-492
No study has described Streptococcus dysgalactiae subsp. equisimilis (SDSE) isolates that cause repetitive infections (recurrence and reinfection). We compared the microbiological characteristics of SDSE causing repetitive infections with those causing single infections. Three patients with invasive infections were identified based on their medical records, and multiple SDSE isolates were collected at intervals over three weeks, using a laboratory repository. Isolates from 12 patients with single-episode infections served as controls. Six isolates were collected from three patients with first and second episodes of infection. All isolates causing either repetitive or single-episode infection were subjected to emm typing, multilocus sequence typing (MLST), pulsed-field gel electrophoresis (PFGE), and random amplified polymorphic DNA (RAPD) analyses. Amplification of five virulence genes (sicG, prtF1, prtF2, lmb, and cbp), biofilm formation (BF), and cell invasion abilities (CIAs) were measured as virulent phenotypes. We observed close genetic similarities in the data obtained by emm typing, MLST, PFGE, and RAPD in four isolates from two patients, suggesting recurrence, whereas two isolates from one patient indicated genetic differences in these data, suggesting re-infection. The presence of the five virulence genes and the BF and CIA measurements appeared not to contribute to repetitive infections, compared with isolates causing single-episode infection. In conclusion, clinicians encountering patients with repetitive infections should be aware of both possibilities: recurrence with closely related strains and reinfection with different strains.
Biofilms
;
DNA
;
Electrophoresis, Gel, Pulsed-Field
;
Humans
;
Medical Records
;
Multilocus Sequence Typing
;
Phenotype
;
Recurrence
;
Streptococcus
;
Virulence
9.Above-Knee Femoropopliteal Arterial Bypass for Lower Limb Ischemia Associated with Bilateral Persistent Sciatic Arteries
Noriyuki Hatanaka ; Takashi Ueda ; Natsuya Ishikawa ; Naohiro Shimada
Japanese Journal of Cardiovascular Surgery 2017;46(1):54-56
Persistent sciatic artery (PSA) is a rare congenital vascular anomaly with an incidence ranging from 0.025 to 0.06% of the general population. We report a 65-year-old male patient with bilateral PSA suffering from intermittent right-calf claudication. Peripheral pulsations could be palpated well at the right common femoral artery but not at the right popliteal artery. His ankle brachial index (ABI) was 0.79 on the right and 0.99 on the left. Computed tomographic (CT) angiography demonstrated that the bilateral PSAs were branched from the internal iliac arteries and the right PSA was completely occluded, whereas aneurysmal change was not evident. Both superficial femoral arteries were incompletely developed. Blood flow to the peroneal artery, anterior and posterior tibial arteries were maintained in both lower legs via a network of collateral arteries. Arterial bypass from right common femoral artery to the above-knee popliteal artery using knitted Dacron graft was performed and postoperative ABI of the right lower limb improved to 1.06. Ten months after the intervention, the patient was then suffered from intermittent left-calf claudication caused by complete occlusion of left PSA, therefore, above-knee femoropopliteal arterial bypass using knitted Dacron graft was performed. PSA is often asymptomatic until a complication develops and the careful monitoring to prevent the risk of thromboembolic and aneurysmal events are recommended.
10.Immunological effect of local ablationcombined with immunotherapy on solidmalignancies
Takahashi YUSUKE ; Matsutani NORIYUKI ; Nakayama TAKASHI ; Dejima HITOSHI ; Uehara HIROFUMI ; Kawamura MASAFUMI
Chinese Journal of Cancer 2017;36(6):252-257
Recent comprehensive investigations clarified that immune microenvironment surrounding tumor cells are deeplyinvolved in tumor progression, metastasis, and response to treatment. Furthermore, several immunotherapeutic trialshave achieved successful results, and the immunotherapeutic agents are available in clinical practice. To enhancetheir demonstrated efficacy, combination of immunotherapy and ablation has begun to emerge. Local ablationshave considerable advantages as an alternative therapeutic option, especially its minimal invasiveness. In addition,local ablations have shown immune-regulatory effect in preclinical and clinical studies. Although the correspondingmechanisms are still unclear, the local ablations combined with immunotherapy have been suggested in the treatmentof several solid malignancies. This article aims to review the published data on the immune-regulatory effectsof local ablations including stereotactic body radiotherapy, cryoablation, radiofrequency ablation, and high-intensityfocusedultrasound. We also discuss the value of local ablations combined with immunotherapy. Local ablations havethe potential to improve future patient outcomes; however, the effectiveness and safety of local ablations combinedwith immunotherapy should be further investigated.


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