1.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
2.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
3.Improved visibility of palisade vessels within Barrett’s esophagus using red dichromatic imaging: a retrospective cross-sectional study in Japan
Chise UEDA ; Shinwa TANAKA ; Tetsuya YOSHIZAKI ; Hirofumi ABE ; Masato KINOSHITA ; Hiroya SAKAGUCHI ; Hiroshi TAKAYAMA ; Hitomi HORI ; Ryosuke ISHIDA ; Shinya HOUKI ; Hiroshi TANABE ; Eri NISHIKAWA ; Madoka TAKAO ; Toshitatsu TAKAO ; Yoshinori MORITA ; Takashi TOYONAGA ; Yuzo KODAMA
Clinical Endoscopy 2025;58(2):269-277
Background/Aims:
Visualization of palisade vessels (PVs) in Barrett’s esophagus is crucial for proper assessment. This study aimed to determine whether red dichromatic imaging (RDI) improves PV visibility compared with white-light imaging (WLI) and narrow-band imaging (NBI).
Methods:
Five expert and trainee endoscopists evaluated the PV visibility in Barrett’s esophagus using WLI, NBI, and RDI on 66 images from 22 patients. Visibility was rated on a 4-point scale: 4, excellent; 3, good; 2, fair; and 1, poor. The color difference between the most recognizable PV spots and surrounding areas with undetectable blood vessels was also analyzed.
Results:
Mean visibility scores were 2.6±0.7, 2.3±0.6, and 3.4±0.4 for WLI, NBI, and RDI, respectively. The RDI scores were significantly higher than the WLI (p<0.001) and NBI (p<0.001) scores. These differences were recognized by trainees and expert endoscopists. Color differences in PVs were 7.74±4.96 (WLI), 10.43±5.09 (NBI), and 15.1±6.54 (RDI). The difference in RDI was significantly higher than that in WLI (p<0.001) and NBI (p=0.006).
Conclusions
RDI significantly improved PV visibility compared to WLI and NBI based on objective and subjective measures.
5.Lenvatinib and pembrolizumab versus platinum doublet chemotherapy as second-line therapy for advanced or recurrent endometrial cancer
Yutaka YONEOKA ; Tsukuru AMANO ; Akimasa TAKAHASHI ; Hiroki NISHIMURA ; Mari DEGUCHI ; Hiroyuki YAMANAKA ; Yuji TANAKA ; Shunichiro TSUJI ; Takashi MURAKAMI
Obstetrics & Gynecology Science 2024;67(6):534-540
Objective:
There is no consensus on whether platinum doublet chemotherapy or lenvatinib and pembrolizumab (LEN/PEM) is superior for advanced or recurrent endometrial cancer. Thus, this study aimed to compare the prognosis and adverse events in patients with advanced or recurrent endometrial cancer treated with platinum doublet chemotherapy or LEN/PEM.
Methods:
We retrospectively reviewed the medical records of patients who received platinum doublet chemotherapy or LEN/PEM at our institution for advanced or recurrent endometrial cancer and had a history of platinum-based chemotherapy between January 2013 and August 2023.
Results:
During the study period, 11 regimens were identified in the platinum doublet chemotherapy group, and 11 regimens were identified in the LEN/PEM group. The objective response rates of the platinum doublet chemotherapy and LEN/ PEM groups were 36.4% and 54.5% (P=0.67), respectively. The 6-month progression-free survival (PFS) rates of the platinum doublet chemotherapy and LEN/PEM groups were 27.3% (95% confidence interval [CI], 13.8%-40.7%) and 70.0% (95% CI, 55.5%-84.5%), respectively. The differences were significant between the two groups. Multivariate analyses of histology, prior lines of chemotherapy, platinum-free intervals, and regimens revealed that the LEN/PEM group had significantly better PFS rates.
Conclusion
Treatment with LEN/PEM resulted in significantly longer PFS than that of treatment with platinum doublet chemotherapy in patients with advanced and recurrent endometrial cancer. However, further large-scale studies are required to validate these findings.
6.Lenvatinib and pembrolizumab versus platinum doublet chemotherapy as second-line therapy for advanced or recurrent endometrial cancer
Yutaka YONEOKA ; Tsukuru AMANO ; Akimasa TAKAHASHI ; Hiroki NISHIMURA ; Mari DEGUCHI ; Hiroyuki YAMANAKA ; Yuji TANAKA ; Shunichiro TSUJI ; Takashi MURAKAMI
Obstetrics & Gynecology Science 2024;67(6):534-540
Objective:
There is no consensus on whether platinum doublet chemotherapy or lenvatinib and pembrolizumab (LEN/PEM) is superior for advanced or recurrent endometrial cancer. Thus, this study aimed to compare the prognosis and adverse events in patients with advanced or recurrent endometrial cancer treated with platinum doublet chemotherapy or LEN/PEM.
Methods:
We retrospectively reviewed the medical records of patients who received platinum doublet chemotherapy or LEN/PEM at our institution for advanced or recurrent endometrial cancer and had a history of platinum-based chemotherapy between January 2013 and August 2023.
Results:
During the study period, 11 regimens were identified in the platinum doublet chemotherapy group, and 11 regimens were identified in the LEN/PEM group. The objective response rates of the platinum doublet chemotherapy and LEN/ PEM groups were 36.4% and 54.5% (P=0.67), respectively. The 6-month progression-free survival (PFS) rates of the platinum doublet chemotherapy and LEN/PEM groups were 27.3% (95% confidence interval [CI], 13.8%-40.7%) and 70.0% (95% CI, 55.5%-84.5%), respectively. The differences were significant between the two groups. Multivariate analyses of histology, prior lines of chemotherapy, platinum-free intervals, and regimens revealed that the LEN/PEM group had significantly better PFS rates.
Conclusion
Treatment with LEN/PEM resulted in significantly longer PFS than that of treatment with platinum doublet chemotherapy in patients with advanced and recurrent endometrial cancer. However, further large-scale studies are required to validate these findings.
7.Cross-Sectional and Longitudinal Associations between Forearm Bone Mineral Density and Anthropometry in Adult Japanese Men and Women
Masahiro ISHIZAWA ; Kazuya FUJIHARA ; Junko YACHIDA ; Izumi IKEDA ; Takaaki SATO ; Takaho YAMADA ; Ayako KOBAYASHI ; Shiro TANAKA ; Yoshimi NAKAGAWA ; Takashi MATSUZAKA ; Hitoshi SHIMANO ; Minoru TASHIRO ; Satoru KODAMA ; Kiminori KATO ; Hirohito SONE
Journal of Bone Metabolism 2024;31(1):21-30
Background:
No consensus exists regarding which anthropometric measurements are related to bone mineral density (BMD), and this relationship may vary according to sex and age. A large Japanese cohort was analyzed to provide an understanding of the relationship between BMD and anthropometry while adjusting for known confounding factors.
Methods:
Our cohort included 10,827 participants who underwent multiple medical checkups including distal forearm BMD scans. Participants were stratified into four groups according to age (≥50 years or <50 years) and sex. The BMD values were adjusted for confounding factors, after which single and partial correlation analyses were performed. The prevalence of osteopenia was plotted for each weight index (weight or body mass index [BMI]) class.
Results:
Cross-sectional studies revealed that weight was more favorably correlated than BMI in the older group (R=0.278 and 0.212 in men and R=0.304 and 0.220 in women, respectively), whereas weight and BMI were weakly correlated in the younger age groups. The prevalence of osteopenia exhibited a negative linear relationship with weight among older women ≥50 years of age, and an accelerated increase was observed with decreasing weight in older men weighing <50 kg and younger women weighing <60 kg. When weight was replaced with BMI, the prevalence was low in most subgroups classified by weight.
Conclusions
Weight, rather than BMI, was the most important indicator of osteopenia but it might not be predictive of future bone loss.
8.Lenvatinib and pembrolizumab versus platinum doublet chemotherapy as second-line therapy for advanced or recurrent endometrial cancer
Yutaka YONEOKA ; Tsukuru AMANO ; Akimasa TAKAHASHI ; Hiroki NISHIMURA ; Mari DEGUCHI ; Hiroyuki YAMANAKA ; Yuji TANAKA ; Shunichiro TSUJI ; Takashi MURAKAMI
Obstetrics & Gynecology Science 2024;67(6):534-540
Objective:
There is no consensus on whether platinum doublet chemotherapy or lenvatinib and pembrolizumab (LEN/PEM) is superior for advanced or recurrent endometrial cancer. Thus, this study aimed to compare the prognosis and adverse events in patients with advanced or recurrent endometrial cancer treated with platinum doublet chemotherapy or LEN/PEM.
Methods:
We retrospectively reviewed the medical records of patients who received platinum doublet chemotherapy or LEN/PEM at our institution for advanced or recurrent endometrial cancer and had a history of platinum-based chemotherapy between January 2013 and August 2023.
Results:
During the study period, 11 regimens were identified in the platinum doublet chemotherapy group, and 11 regimens were identified in the LEN/PEM group. The objective response rates of the platinum doublet chemotherapy and LEN/ PEM groups were 36.4% and 54.5% (P=0.67), respectively. The 6-month progression-free survival (PFS) rates of the platinum doublet chemotherapy and LEN/PEM groups were 27.3% (95% confidence interval [CI], 13.8%-40.7%) and 70.0% (95% CI, 55.5%-84.5%), respectively. The differences were significant between the two groups. Multivariate analyses of histology, prior lines of chemotherapy, platinum-free intervals, and regimens revealed that the LEN/PEM group had significantly better PFS rates.
Conclusion
Treatment with LEN/PEM resulted in significantly longer PFS than that of treatment with platinum doublet chemotherapy in patients with advanced and recurrent endometrial cancer. However, further large-scale studies are required to validate these findings.
9.Lenvatinib and pembrolizumab versus platinum doublet chemotherapy as second-line therapy for advanced or recurrent endometrial cancer
Yutaka YONEOKA ; Tsukuru AMANO ; Akimasa TAKAHASHI ; Hiroki NISHIMURA ; Mari DEGUCHI ; Hiroyuki YAMANAKA ; Yuji TANAKA ; Shunichiro TSUJI ; Takashi MURAKAMI
Obstetrics & Gynecology Science 2024;67(6):534-540
Objective:
There is no consensus on whether platinum doublet chemotherapy or lenvatinib and pembrolizumab (LEN/PEM) is superior for advanced or recurrent endometrial cancer. Thus, this study aimed to compare the prognosis and adverse events in patients with advanced or recurrent endometrial cancer treated with platinum doublet chemotherapy or LEN/PEM.
Methods:
We retrospectively reviewed the medical records of patients who received platinum doublet chemotherapy or LEN/PEM at our institution for advanced or recurrent endometrial cancer and had a history of platinum-based chemotherapy between January 2013 and August 2023.
Results:
During the study period, 11 regimens were identified in the platinum doublet chemotherapy group, and 11 regimens were identified in the LEN/PEM group. The objective response rates of the platinum doublet chemotherapy and LEN/ PEM groups were 36.4% and 54.5% (P=0.67), respectively. The 6-month progression-free survival (PFS) rates of the platinum doublet chemotherapy and LEN/PEM groups were 27.3% (95% confidence interval [CI], 13.8%-40.7%) and 70.0% (95% CI, 55.5%-84.5%), respectively. The differences were significant between the two groups. Multivariate analyses of histology, prior lines of chemotherapy, platinum-free intervals, and regimens revealed that the LEN/PEM group had significantly better PFS rates.
Conclusion
Treatment with LEN/PEM resulted in significantly longer PFS than that of treatment with platinum doublet chemotherapy in patients with advanced and recurrent endometrial cancer. However, further large-scale studies are required to validate these findings.
10.A Case of Direct Oral Anticoagulant (DOAC) as Anticoagulant after Mitral Valvuloplasty in a Patient with Warfarin-Resistance
Shunsuke WADA ; Takashi HASHIMOTO ; Koh KAJIYAMA ; Keizo TANAKA
Japanese Journal of Cardiovascular Surgery 2024;53(6):343-347
Warfarin is commonly used as an anticoagulant after mitral valvuloplasty (MVP). The efficacy of warfarin varies widely from patient to patient, and sometimes optimal prolongation of PT-INR cannot be achieved even with high doses of warfarin. In the present case, PT-INR was not prolonged to the target value even after 9 mg of warfarin and 300 mg of Bucolome due to warfarin resistance, and a direct oral anticoagulant (DOAC) was administered as an alternative drug. The patient was a 57-year-old male who became aware of easy fatigue and visited a medical institution for a heart murmur. Transthoracic echocardiography revealed a severe mitral regurgitation (MR) due to thickening of the anterior mitral leaflet and prolapse of the posterior leaflet. Postoperative echocardiography showed no MR, good valve mobility, an effective valve opening area of 2.0 cm2, and an improved blood flow velocity of 0.9 m/s. Warfarin was started on the day after surgery, but the dose was gradually increased because PT-INR was not prolonged. The PT-INR was less than 1 even with 6 mg of warfarin, and the patient was started on Bucolome. The PT-INR was 1.27 after 9 mg of warfarin and 300 mg of Bucolome. The patient was diagnosed as warfarin-resistance and was discharged from the hospital after warfarin was discontinued and dabigatran 300 mg was administered. Dabigatran was discontinued at 3 months after surgery without any embolism or bleeding complications. In some cases, PT-INR prolongation may not be achieved due to warfarin resistance caused by genetic polymorphisms, and in such cases, DOACs can be used as anticoagulants after mitral valvuloplasty.


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