1.Insufficient evaluation of S2 alar iliac screw malposition with the intraoperative inlet view: utility of the obturator inlet and iliac oblique views
Shun OKUWAKI ; Toru FUNAYAMA ; Yohei YANAGISAWA ; Takahiro SUNAMI ; Takane NAKAGAWA ; Yosuke OGATA ; Kotaro SAKASHITA ; Hisanori GAMADA ; Kousei MIURA ; Hiroshi NOGUCHI ; Hiroshi TAKAHASHI ; Masao KODA
Asian Spine Journal 2026;20(2):302-312
Methods:
We analyzed data from 101 patients who underwent spinopelvic surgery involving 202 S2AI screws. Postoperative computed tomography (CT) images were reviewed to identify screw deviations. The reconstructed fluoroscopic views from CT, including the inlet, OI, and IO views, were assessed for their effectiveness in detecting deviations. An experimental study using pelvic bone models simulated scenarios where deviations were undetectable in the inlet view but visible in the OI view.
Results:
Screw deviations were identified in 12 cases (11.9%) and 13 screws (6.4%), including six screws (3.0%) with anterior deviations and seven screws (3.5%) with posterior deviations. The accurate inlet view detected anterior deviations in three of the five cases analyzed with reconstructed images. However, two cases of anterior deviation were missed due to an insufficient inlet view caused by a 30° caudal tilting angle. In contrast, the OI view successfully identified all cases of both anterior and posterior deviations. In particular, deviations above the arcuate line of the pelvic brim were not detectable in the inlet view.
Conclusions
The inlet view alone is inadequate for detecting anterior deviations, especially those located above the arcuate line of the pelvis. The OI and IO views demonstrated greater effectiveness in identifying deviations, thereby enhancing the accuracy and safety of S2AI screw placement.
2.A Case of Retrograde Acute Type A Aortic Dissection Treated with Total Arch Replacement and Thoracic Endovascular Aortic Repair
Taku NAKAGAWA ; Koki YOKAWA ; Makoto KUSAKISAKO ; Tomonori HIGUMA ; Yosuke TANAKA ; Kazunori YOSHIDA ; Yoshihiro OSHIMA ; Hidefumi OBO ; Hidetaka WAKIYAMA
Japanese Journal of Cardiovascular Surgery 2025;54(6):288-291
The treatment strategy for acute type A aortic dissection consists of entry closure and maximal resection of the dissected aortic segment. In cases where the entry is located in the distal descending aorta, as in this case, entry closure is challenging, and surgery often involves only maximal resection of the dissected segment. The patient was a 53-year-old man who presented with sudden onset of chest pain. CT revealed a retrograde Stanford type A acute aortic dissection with a tear in the distal descending aorta. Preoperative measurements suggested that entry closure using frozen elephant trunk (FET) would be impossible. Surgery was performed with the goal of maximal resection of the dissected aortic segment in a hybrid operating room. The patient underwent total arch replacement (TAR) using FET. TEE revealed true lumen stenosis beyond the descending aorta, along with a decrease in lower limb blood pressure reducing blood flow to the abdominal branches. Therefore, emergency TEVAR was performed to achieve entry closure in the entire descending aorta. After TEVAR, the true lumen expanded, and perfusion to the lower limbs and abdominal branches improved. The postoperative course was uneventful, and the patient was discharged on postoperative day 10.
3.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
4.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
5.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
6.Prognostic significance of para-aortic node metastasis in endometrial cancer:Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(4):e57-
Objective:
This study aimed to assess the prognostic significance of para-aortic lymphadenectomy (PALX) and para-aortic lymph node metastasis in endometrial cancer (EC) patients at risk of post-operative recurrence.
Methods:
Japanese Gynecologic Oncology Group (JGOG) 2043 was a randomized controlled trial assessing the efficacy of adjuvant chemotherapy in EC patients at risk for postoperative recurrence. A retrospective analysis included patients who underwent pelvic lymphadenectomy (PLX) alone or both PLX and PALX in JGOG2043. Data on positive lymph nodes and other clinicopathological risk factors were collected.
Results:
PLX and PALX were performed on 402 patients, while PLX alone was conducted on 250 patients. Evaluating the effect of PALX on survival was challenging through a comparison of the outcomes of the 2 cohorts since PALX was predominantly administered to higher-risk patients. Patients with 2 or more metastases in para-aortic nodes exhibited significantly poorer overall survival than those with no or 1 metastasis, respectively (p<0.001, p=0.031).Multivariate analysis revealed that 2 or more metastases in para-aortic nodes is independent risk factors for disease-free survival (hazard ratio [HR]=1.72; 95% confidence interval [CI]=1.10–2.72; p=0.019) and are marginally significant for overall survival (HR=1.58; 95% CI=0.92–2.72; p=0.096) compared to no or a single metastasis.
Conclusion
The clinical relevance of PALX was challenging to evaluate in the JGOG2043 cohort; however, the presence of 2 or more para-aortic node metastases was identified as an independent unfavorable prognostic factor in EC patients at risk of recurrence.
7.Impact of COVID-19 spread on visit intervals and clinical parameters for patients with periodontitis in supportive periodontal therapy:a retrospective study
Mizuho YAMAZAKI-TAKAI ; Yumi SAITO ; Shoichi ITO ; Moe OGIHARA-TAKEDA ; Tsuyoshi KATSUMATA ; Ryo KOBAYASHI ; Shuta NAKAGAWA ; Tomoko NISHINO ; Namiko FUKUOKA ; Kota HOSONO ; Mai YAMASAKI ; Yosuke YAMAZAKI ; Yuto TSURUYA ; Arisa YAMAGUCHI ; Yorimasa OGATA
Journal of Periodontal & Implant Science 2024;54(2):75-84
Purpose:
This study investigated the relationship between the number of days that hospital visits were postponed and changes in clinical parameters due to the spread of coronavirus disease 2019 (COVID-19), after the Japanese government declared a state of emergency in April 2020.
Methods:
Regarding the status of postponement of appointments, we analyzed the patients who had visited the Nihon University Hospital at Matsudo for more than 1 year for supportive periodontal therapy (SPT) and classified them into low-, moderate- and high-risk subgroups according to the periodontal risk assessment (PRA). Clinical parameters for periodontal disease such as probing depth (PD), full-mouth bleeding score (FMBS), full-mouth plaque score, periodontal inflamed surface area (PISA), and periodontal epithelial surface area (PESA) were analyzed in 2 periods, from October 2019 to March 2020 and after April 2020.Correlation coefficients between days of deferral and the degree of changes in clinical parameters were calculated.
Results:
The mean age of the 749 patients was 67.56±10.85 years, and 63.82% were female.Out of 749 patients, 33.24% deferred their SPT appointments after April 2020. The average total of postponement days was 109.49±88.84. The number of postponement days was positively correlated with changes in average PD (rs=0.474) and PESA (rs=0.443) in the high-risk subgroup of FMBS, and average PD (rs=0.293) and PESA (rs=0.253) in the highrisk subgroup of tooth number (TN). Patients belonging to the high-risk subgroups for both FMBS and TN had a positive correlation between postponement days and PISA (rs=0.56).
Conclusions
The findings, the spread of COVID-19 appears to have extended the visit interval for some SPT patients. Moreover, longer visit intervals were correlated with the worsening of some clinical parameters for SPT patients with high PRA.
8.Clinical meaning of sarcopenia in patients undergoing endoscopic treatment
Hiroyuki HISADA ; Yosuke TSUJI ; Hikaru KURIBARA ; Ryohei MIYATA ; Kaori OSHIO ; Satoru MIZUTANI ; Hideki NAKAGAWA ; Rina CHO ; Nobuyuki SAKUMA ; Yuko MIURA ; Hiroya MIZUTANI ; Daisuke OHKI ; Seiichi YAKABI ; Yu TAKAHASHI ; Yoshiki SAKAGUCHI ; Naomi KAKUSHIMA ; Nobutake YAMAMICHI ; Mitsuhiro FUJISHIRO
Clinical Endoscopy 2024;57(4):446-453
With increasing global life expectancy, the significance of geriatric assessment parameters has increased. Sarcopenia is a crucial assessment parameter and is defined as the age-related loss of muscle mass and strength. Sarcopenia is widely acknowledged as a risk factor for postoperative complications in diverse advanced malignancies and has a detrimental effect on the long-term prognosis. While most studies have primarily concentrated on the correlation between sarcopenia and advanced cancer, more recent investigations have focused on the relationship between sarcopenia and early-stage cancer. Endoscopic submucosal dissection (ESD), which is less invasive than surgical intervention, is extensively employed in the management of early-stage cancer, although it is associated with complications such as bleeding and perforation. In recent years, several reports have revealed the adverse consequences of sarcopenia in patients with early-stage cancer undergoing ESD. This literature review briefly summarizes the recent studies on the association between sarcopenia and ESD.
9.Roles of Parathyroid Hormone and Fibroblast Growth Factor 23 in Advanced Chronic Kidney Disease
Yosuke NAKAGAWA ; Hirotaka KOMABA
Endocrinology and Metabolism 2024;39(3):407-415
Parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23) each play a central role in the pathogenesis of chronic kidney disease (CKD)-mineral and bone disorder. Levels of both hormones increase progressively in advanced CKD and can lead to damage in multiple organs. Secondary hyperparathyroidism (SHPT), characterized by parathyroid hyperplasia with increased PTH secretion, is associated with fractures and mortality. Emerging evidence suggests that these associations may be partially explained by PTH-induced browning of adipose tissue and increased energy expenditure. Observational studies suggest a survival benefit of PTHlowering therapy, and a recent study comparing parathyroidectomy and calcimimetics further suggests the importance of intensive PTH control. The mechanisms underlying the regulation of FGF23 secretion by osteocytes in response to phosphate load have been unclear, but recent experimental studies have identified glycerol-3-phosphate, a byproduct of glycolysis released by the kidney, as a key regulator of FGF23 production. Elevated FGF23 levels have been shown to be associated with mortality, and experimental data suggest off-target adverse effects of FGF23. However, the causal role of FGF23 in adverse outcomes in CKD patients remains to be established. Further studies are needed to determine whether intensive SHPT control improves clinical outcomes and whether treatment targeting FGF23 can improve patient outcomes.
10.Physical functions, physical activity, and cognitive functions in community-dwelling older people with driving cessation: the Nakagawa Study
Yujiro KOSE ; Masahiro IKENAGA ; Yosuke YAMADA ; Noriko TAKEDA ; Kazuhiro MORIMURA ; Misaka KIMURA ; Akira KIYONAGA ; Yasuki HIGAKI ; Hiroaki TANAKA ; The Nakagawa Study Group
Japanese Journal of Physical Fitness and Sports Medicine 2020;69(1):181-191
This study aimed to examine characteristics of physical functions, physical activity, and cognitive functions among community-dwelling older people who stopped driving automobiles. Participants were 589 community-dwelling older people (age: 65–89, 71.4 ± 5.1 years; 403 men, 186 women). The participants underwent nine physical assessments—hand grip strength, knee extension strength, timed up-and-go test, chair stand, one leg standing with open eyes, functional reach, vertical jump, preferred gait speed, maximal gait speed—and were evaluated for physical activity; and five cognitive assessments—the Mini-Mental State Examination (MMSE), Logical Memory I and II (WMS-R LM-I, LM-II) subtests of the Wechsler Memory Scale-Revised; and Trail Making Test A and B (TMT-A, TMT-B). They were divided into current driver (379 men, 169 women) and driving cessation (24 men, 17 women) groups. Among men, the driving cessation group had poorer vertical jump, TMT-A, and TMT-B results, while women had poorer hand grip strength, one leg standing with open eyes, WMS-R LM-II, and LM-II results, and longer inactivity time, compared with the current driver group and adjusted for covariates (P < 0.05 for all). The findings suggest driving cessation among community-dwelling older people is significantly associated with poorer physical functions, physical activity, and cognitive functions compared with those in current drivers.


Result Analysis
Print
Save
E-mail