1.Factors influencing lateral margin diagnosis challenges in Barrett’s esophageal cancer: a bicenter retrospective study in Japan
Ippei TANAKA ; Shuhei UNNO ; Kazuki YAMAMOTO ; Yoshitaka NAWATA ; Kimihiro IGARASHI ; Tomoki MATSUDA ; Dai HIRASAWA
Clinical Endoscopy 2025;58(1):85-93
Background/Aims:
We aimed to clarify the clinicopathological characteristics and causes of Barrett’s esophageal adenocarcinoma (BEA) with unclear demarcation.
Methods:
We reviewed BEA cases between January 2010 and August 2022. The lesions were classified into the following two groups: clear demarcation (CD group) and unclear demarcation (UD group). We compared the clinicopathological findings between the two groups. Furthermore, we measured the length and width of the foveolar structures, as well as the width of marginal crypt epithelium (MCE).
Results:
We analyzed data from 68 patients with BEA, including 47 and 21 in the CD and UD groups, respectively. Multivariate analysis revealed long-segment Barrett’s esophagus (LSBE) as the sole significant risk factor for BEA (odds ratio, 12.17; 95% confidence interval, 2.84–47.6; p=0.001). Regarding pathological analysis, significant differences were observed in the length and width of the foveolar structure between cancerous and surrounding mucosa in the CD group (p=0.03 and p=0.00, respectively); however, no significant difference was observed in the UD group (p=0.53 and p=0.72, respectively). Nevertheless, the width of MCE in the cancerous area was significantly shorter than that in the surrounding mucosa in both groups (p<0.05, and p<0.05, respectively).
Conclusions
LSBE is a significant risk factor for BEA in the UD group. The width of MCE may be an important factor in the endoscopic diagnosis of BEA.
2.Factors influencing lateral margin diagnosis challenges in Barrett’s esophageal cancer: a bicenter retrospective study in Japan
Ippei TANAKA ; Shuhei UNNO ; Kazuki YAMAMOTO ; Yoshitaka NAWATA ; Kimihiro IGARASHI ; Tomoki MATSUDA ; Dai HIRASAWA
Clinical Endoscopy 2025;58(1):85-93
Background/Aims:
We aimed to clarify the clinicopathological characteristics and causes of Barrett’s esophageal adenocarcinoma (BEA) with unclear demarcation.
Methods:
We reviewed BEA cases between January 2010 and August 2022. The lesions were classified into the following two groups: clear demarcation (CD group) and unclear demarcation (UD group). We compared the clinicopathological findings between the two groups. Furthermore, we measured the length and width of the foveolar structures, as well as the width of marginal crypt epithelium (MCE).
Results:
We analyzed data from 68 patients with BEA, including 47 and 21 in the CD and UD groups, respectively. Multivariate analysis revealed long-segment Barrett’s esophagus (LSBE) as the sole significant risk factor for BEA (odds ratio, 12.17; 95% confidence interval, 2.84–47.6; p=0.001). Regarding pathological analysis, significant differences were observed in the length and width of the foveolar structure between cancerous and surrounding mucosa in the CD group (p=0.03 and p=0.00, respectively); however, no significant difference was observed in the UD group (p=0.53 and p=0.72, respectively). Nevertheless, the width of MCE in the cancerous area was significantly shorter than that in the surrounding mucosa in both groups (p<0.05, and p<0.05, respectively).
Conclusions
LSBE is a significant risk factor for BEA in the UD group. The width of MCE may be an important factor in the endoscopic diagnosis of BEA.
3.Factors influencing lateral margin diagnosis challenges in Barrett’s esophageal cancer: a bicenter retrospective study in Japan
Ippei TANAKA ; Shuhei UNNO ; Kazuki YAMAMOTO ; Yoshitaka NAWATA ; Kimihiro IGARASHI ; Tomoki MATSUDA ; Dai HIRASAWA
Clinical Endoscopy 2025;58(1):85-93
Background/Aims:
We aimed to clarify the clinicopathological characteristics and causes of Barrett’s esophageal adenocarcinoma (BEA) with unclear demarcation.
Methods:
We reviewed BEA cases between January 2010 and August 2022. The lesions were classified into the following two groups: clear demarcation (CD group) and unclear demarcation (UD group). We compared the clinicopathological findings between the two groups. Furthermore, we measured the length and width of the foveolar structures, as well as the width of marginal crypt epithelium (MCE).
Results:
We analyzed data from 68 patients with BEA, including 47 and 21 in the CD and UD groups, respectively. Multivariate analysis revealed long-segment Barrett’s esophagus (LSBE) as the sole significant risk factor for BEA (odds ratio, 12.17; 95% confidence interval, 2.84–47.6; p=0.001). Regarding pathological analysis, significant differences were observed in the length and width of the foveolar structure between cancerous and surrounding mucosa in the CD group (p=0.03 and p=0.00, respectively); however, no significant difference was observed in the UD group (p=0.53 and p=0.72, respectively). Nevertheless, the width of MCE in the cancerous area was significantly shorter than that in the surrounding mucosa in both groups (p<0.05, and p<0.05, respectively).
Conclusions
LSBE is a significant risk factor for BEA in the UD group. The width of MCE may be an important factor in the endoscopic diagnosis of BEA.
4.Chronic Expanding Hematoma with Constrictive Pericarditis
Masaki KOMATSU ; Kazuki NAITO ; Shuji CHINO ; Haruki TANAKA ; Hajime ICHIMURA ; Takateru YAMAMOTO ; Kou NAKAHARA ; Megumi FUKE ; Yuko WADA ; Tatsuichiro SETO
Japanese Journal of Cardiovascular Surgery 2022;51(2):105-109
We report the successful treatment of a rare case of chronic expanding hematoma and visceral pericardium thickening constrictive pericarditis with no history of trauma or surgery. A 70-year-old woman, who had no history of trauma or surgery was admitted for exertional dyspnea. An echocardiographic study demonstrated a mass located anterior to the right ventricle that severely compressed the right ventricle toward the ventricular septum. Enhanced chest computed tomography demonstrated pericardial calcification and a 125-mm heterogeneous mass in the middle mediastinum. A mosaic pattern was seen on T1, T2-weighted magnetic resonance imaging. Surgical resection of the mass and removal of the visceral pericardium were planned to treat heart failure and to confirm the diagnosis of the mass. The mass was old degenerated coagula. Histopathological examination confirmed the diagnosis of chronic expanding hematoma. The postoperative course was uneventful. There has been no sign of recurrence 19 months after the operation.
5.Utility of the Gel Immersion Method for Treating Massive Colonic Diverticular Bleeding
Kazuki YAMAMOTO ; Yasutoshi SHIRATORI ; Takashi IKEYA
Clinical Endoscopy 2021;54(2):256-260
Background/Aims:
In Asia, right-sided diverticular bleeding is more common than that of the left side. It often causes massive bleeding and difficulties in identifying the stigmata of recent hemorrhage (SRH) of colonic diverticular bleeding (CDB). This case series demonstrates the efficacy of the gel immersion method using OS-1 Jelly (Otsuka Pharmaceuticals Factory, Tokushima, Japan) in patients with CDB.
Methods:
This retrospective case series analyzed data of patients with CDB who underwent the gel immersion method from April 2016 to February 2020 at St. Luke’s International Hospital, Japan. All patients diagnosed with CDB who underwent the gel immersion method were included. We collected data on the site of bleeding, identification of SRH, and efficacy of the method from the electronic medical records.
Results:
A total of 9 patients (including 7 with right-sided CDB) underwent gel immersion method and were included in this study. SRH were successfully found in 66.7% (6/9) of patients. Moreover, effective hemostasis was achieved in 85.7% (6/7) of patients with right-sided CDB. There were no adverse events.
Conclusions
The gel immersion method was found to be effective, especially for massive right-sided CDB.
6.Utility of the Gel Immersion Method for Treating Massive Colonic Diverticular Bleeding
Kazuki YAMAMOTO ; Yasutoshi SHIRATORI ; Takashi IKEYA
Clinical Endoscopy 2021;54(2):256-260
Background/Aims:
In Asia, right-sided diverticular bleeding is more common than that of the left side. It often causes massive bleeding and difficulties in identifying the stigmata of recent hemorrhage (SRH) of colonic diverticular bleeding (CDB). This case series demonstrates the efficacy of the gel immersion method using OS-1 Jelly (Otsuka Pharmaceuticals Factory, Tokushima, Japan) in patients with CDB.
Methods:
This retrospective case series analyzed data of patients with CDB who underwent the gel immersion method from April 2016 to February 2020 at St. Luke’s International Hospital, Japan. All patients diagnosed with CDB who underwent the gel immersion method were included. We collected data on the site of bleeding, identification of SRH, and efficacy of the method from the electronic medical records.
Results:
A total of 9 patients (including 7 with right-sided CDB) underwent gel immersion method and were included in this study. SRH were successfully found in 66.7% (6/9) of patients. Moreover, effective hemostasis was achieved in 85.7% (6/7) of patients with right-sided CDB. There were no adverse events.
Conclusions
The gel immersion method was found to be effective, especially for massive right-sided CDB.
7.Prenatal exposure to bisphenol A and phthalates and behavioral problems in children at preschool age: the Hokkaido Study on Environment and Children's Health.
Machiko MINATOYA ; Sachiko ITOH ; Keiko YAMAZAKI ; Atsuko ARAKI ; Chihiro MIYASHITA ; Naomi TAMURA ; Jun YAMAMOTO ; Yu ONODA ; Kazuki OGASAWARA ; Toru MATSUMURA ; Reiko KISHI
Environmental Health and Preventive Medicine 2018;23(1):43-43
BACKGROUND:
Studies reported adverse behavioral development including internalizing and externalizing problems in association with prenatal exposure to bisphenol A (BPA) and phthalates; however, findings were not sufficient due to using different assessment tools and child ages among studies. This study aimed to examine associations between maternal serum levels of BPA and phthalate metabolites and behavioral problems at preschool age.
METHODS:
The Strengths and Difficulties Questionnaire (SDQ) was used to assess behavioral problems at 5 years of age. BPA and phthalate metabolite levels in the first trimester maternal serum was determined by LC-MS/MS for 458 children. Variables used for adjustment were parental ages, maternal cotinine levels, family income during pregnancy, child sex, birth order, and age at SDQ completed.
RESULTS:
The median concentrations of BPA, MnBP, MiBP, MEHP, and MECPP, primary and secondary metabolites of phthalates, were 0.062, 26.0, 7.0, 1.40, and 0.20 ng/ml, respectively. MECPP level was associated with increase conduct problem risk (OR = 2.78, 95% CI 1.36-5.68) overall and the association remained after child sex stratification, and odds ratios were increased with wider confidence interval (OR = 2.85, 95% CI 1.07-7.57 for boys, OR = 4.04, 95% CI 1.31-12.5 for girls, respectively). BPA, ∑DBP (MnBP + MiBP), and ∑DEHP (MEHP+MECPP) levels were not associated with any of the child behavioral problems.
CONCLUSIONS
Our analyses found no significant association between BPA or summation of phthalate metabolite levels and any of the behavioral problems at 5 years of age but suggested possible association between MECPP levels and increased risk of conduct problems.
Adult
;
Age Factors
;
Benzhydryl Compounds
;
blood
;
Child, Preschool
;
Environmental Exposure
;
analysis
;
Female
;
Humans
;
Male
;
Phenols
;
blood
;
Phthalic Acids
;
blood
;
Pregnancy
;
Prenatal Exposure Delayed Effects
;
epidemiology
;
Problem Behavior
;
Smoking
;
epidemiology
;
Socioeconomic Factors
8.Descending Aortic Replacement for Pseudoaneurysm Following Total Arch Replacement with Proximal Endoclamping Using an Occlusion Balloon
Nobuyuki HIROSE ; Hideaki NISHIMORI ; Takashi FUKUTOMI ; Masaki YAMAMOTO ; Kazuki KIHARA ; Miwa TASHIRO ; Kazumasa ORIHASHI
Japanese Journal of Cardiovascular Surgery 2018;47(4):187-191
An 83-year-old man who had undergone aortic arch repair using the elephant trunk technique in addition to abdominal aorta repair required surgical intervention for a pseudoaneurysm at the distal anastomosis of the aortic arch graft. Due to marked adhesion around the aneurysm, aortic cross-clamping was not feasible. Thus, under femoro-femoral partial bypass, the arch prosthesis was endoclamped using an aortic occlusion balloon inserted through the left femoral artery into the aortic arch graft and through the elephant trunk, guided by fluoroscopy and transesophageal echocardiography. This allowed descending aorta replacement with minimal bleeding. His postoperative course was uneventful. This technique enabled safe and bloodless clamping of the proximal portion of the aortic arch graft.
9.Rapid On-Site Evaluation by Endosonographers during Endoscopic Ultrasonography-Guided Fine-Needle Aspiration for Diagnosis of Gastrointestinal Stromal Tumors.
Takashi TAMURA ; Yasunobu YAMASHITA ; Kazuki UEDA ; Yuki KAWAJI ; Masahiro ITONAGA ; Shin ichi MURATA ; Kaori YAMAMOTO ; Takeichi YOSHIDA ; Hiroki MAEDA ; Takao MAEKITA ; Mikitaka IGUCHI ; Hideyuki TAMAI ; Masao ICHINOSE ; Jun KATO
Clinical Endoscopy 2017;50(4):372-378
BACKGROUND/AIMS: Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) has been used to diagnose gastrointestinal submucosal tumors (SMTs). Although rapid on-site evaluation (ROSE) has been reported to improve the diagnostic accuracy of EUS-FNA for pancreatic lesions, on-site cytopathologists are not routinely available. Given this background, the usefulness of ROSE by endosonographers themselves for pancreatic tumors has also been reported. However, ROSE by endosonographers for diagnosis of SMT has not been reported. The aim of this study was to evaluate the diagnostic accuracy of EUS-FNA with ROSE by endosonographers for SMT, focusing on diagnosis of gastrointestinal stromal tumor (GIST), compared with that of EUS-FNA alone. METHODS: Twenty-two consecutive patients who underwent EUS-FNA with ROSE by endosonographers for SMT followed by surgical resection were identified. Ten historical control subjects who underwent EUS-FNA without ROSE were used for comparison. RESULTS: The overall diagnostic accuracy for SMT was significantly higher in cases with than without ROSE (100% vs. 80%, p=0.03). The number of needle passes by FNA with ROSE by endosonographers tended to be fewer, although accuracy was increased (3.3±1.3 vs. 5.9±3.8, p=0.06). CONCLUSIONS: ROSE by endosonographers during EUS-FNA for SMT is useful for definitive diagnosis, particularly for GIST.
Biopsy, Fine-Needle*
;
Diagnosis*
;
Endoscopic Ultrasound-Guided Fine Needle Aspiration
;
Gastrointestinal Stromal Tumors*
;
Humans
;
Needles
10.Collagen Gel Droplet-Embedded Culture Drug Sensitivity Test (CD-DST) for a Leiomyosarcoma Originating in the Inferior Vena Cava
Nobuo Kondo ; Masaki Yamamoto ; Hideaki Nishimori ; Takashi Fukutomi ; Seiichiro Wariishi ; Kazuki Kihara ; Miwa Tashiro ; Kazumasa Orihashi
Japanese Journal of Cardiovascular Surgery 2013;42(2):124-127
The collagen gel droplet-embedded culture drug sensitivity test (CD-DST) identifies effective anticancer drug using resected tumor specimen, enabling tailor-made chemotherapy for a rare tumor. We report a case of the patient with leiomyosarcoma originating in the inferior vena cava, to which CD-DST was applied. This application has not been previously reported to the best of our knowledge. A 61-year-old woman consulted a nearby hospital because of abdominal pain. Computed tomography revealed an inferior vena cava tumor. The tumor was resected with the inferior vena cava, which was reconstructed with a 16 mm ePTFE graft. The tumor was diagnosed as leiomyosarcoma histopathologically. CDDP, VP-16, ADR, and VDS were CD-DST showed the tumor to be sensitive. Her postoperative course has been good without recurrence of tumor for 6 months, and the results of CD-DST may be helpful for chemotherapy strategy in case of recurrence.


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