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Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast

Hiraoka Y, Miura Y, Osawa H, Nomoto Y, Takahashi H, Tsunoda M, Nagayama M, Ueno T, Lefor AK, Yamamoto H

Purpose: Screening image-enhanced endoscopy for gastrointestinal malignant lesions has progressed. However, the influence of the color enhancement settings for the laser endoscopic system on the visibility of lesions with higher...
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Local anesthetic systemic toxicity of levobupivacaine in erector spinae plane block

Yawata S, Imamachi N, Sakura S, Yamamoto H, Saito Y

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Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum

Hayashi Y, Okada M, Morikawa T, Nomura T, Fukuda H, Takezawa T, Lefor AK, Yamamoto H

Superficial colonic neoplasms sometimes extend into a diverticulum. Conventional endoscopic mucosal resection of these lesions is considered challenging because colonic diverticula do not have a muscularis propria and are deeply...
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Fetal cervical zygapophysial joint with special reference to the associated synovial tissue: a histological study using near-term human fetuses

Kitamura K, Hayashi S, Jin ZW, Yamamoto M, Murakami G, Rodríguez-Vázquez JF, Yamamoto H

Human fetal cervical vertebrae are characterized by the large zygapophysial joint (ZJ) extending posteriorly. During our recent studies on regional differences in the shape, extent, and surrounding tissue of the...
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Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter Pylori-Negative Normal Mucosa

Hiraoka Y, Miura Y, Osawa H, Sakaguchi M, Tsunoda M, Lefor AK, Yamamoto H

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Cervical nerve roots and the dural sheath: a histological study using human fetuses near term

Kitamura K, Yamamoto M, Hirota Y, Sato N, Machida T, Ishikawa N, Yamamoto H, Murakami G, Abe S

We have previously reported that the thoracolumbar posterior nerve root shows a tortuous epidural course, based on studies of human fetuses near term. For comparison with the cervical nerve, examinations...
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Roles of Capsule Endoscopy and Balloon-Assisted Enteroscopy in the Optimal Management of Small Bowel Bleeding

Abutalib H, Yano T, Shinozaki S, Lefor AK, Yamamoto H

The small bowel had long been considered a dark unapproachable tunnel until the invention of capsule endoscopy and doubleballoon enteroscopy in the 21st century, which revolutionized the diagnosis and management...
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Double-Balloon Endoscopy-Assisted Balloon Dilation of Strictures Secondary to Small-Intestinal Lymphoma

Magome S, Sakamoto H, Shinozaki , Okada M, Yano T, Sunada K, Lefor AK, Yamamoto H

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In Vitro Effects of Plasma Collected From Rats Administered Naftopidil on Whole Urinary Bladder Preparation Isolated From Rats

Hattori T, Sugaya K, Nishijima , Kadekawa K, Ueda T, Yamamoto H

PURPOSE: Alpha-1-adrenoceptor blockers (e.g., naftopidil) are prescribed for the treatment of male lower urinary tract symptoms. Although the mechanism of action of naftopidil has been studied in various organs, that...
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New Diagnostic Approach for Esophageal Squamous Cell Neoplasms Using Linked Color Imaging and Blue Laser Imaging Combined with Iodine Staining

Tsunoda M, Miura Y, Osawa H, Khurelbaatar T, Sakaguchi , Fukuda H, Lefor AK, Yamamoto H

A 62-year-old man with a flat early esophageal cancer was referred for endoscopic treatment. White light imaging revealed a pale red lesion, whereas linked color imaging (LCI) and blue laser...
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Gastric cancer during pregnancy with placental involvement: case report and review of published works

Oga S, Hachisuga , Hidaka N, Fujita Y, Tomonobe H, Yamamoto H, Kato K

Gastric cancer involving the placenta during pregnancy is rare; however, we present 1 such case in this report. A 31-year-old Japanese woman was referred at 26 weeks of gestation for...
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Endoscopic features of gastrointestinal stromal tumor in the small intestine

Ihara Y, Torisu T, Moriyama T, Umeno J, Hirano A, Okamoto Y, Hori Y, Yamamoto H, Kitazono T, Esaki M

BACKGROUND/AIMS: Gastrointestinal stromal tumor (GIST) is one of the most common types of submucosal tumors (SMTs). Because of GIST's malignant potential, it is crucial to differentiate it from other SMTs....
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Emotional Stress Facilitates Micturition Reflex: Possible Inhibition by an α₁-Adrenoceptor Blocker in the Conscious and Anesthetized State

Hattori T, Sugaya K, Nishijima , Kadekawa K, Ueda T, Yamamoto H

PURPOSE: To test the hypothesis that naftopidil prolongs intercontraction intervals in rats undergoing chronic stress as observed in previous animal models, voiding behavior and bladder function were measured and analyzed. METHODS:...
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Blue Laser Imaging with a Small-Caliber Endoscope Facilitates Detection of Early Gastric Cancer

Takahashi , Miura Y, Osawa H, Takezawa T, Ino Y, Okada M, Lefor AK, Yamamoto H

Conventional endoscopy often misses early gastric cancers with minimal red discoloration because they cannot be distinguished from inflamed mucosa. We treated a patient with a small early gastric cancer that...
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Advanced Treatment and Imaging in Colonoscopy: The Pocket-Creation Method for Complete Resection and Linked Color Imaging for Better Detection of Early Neoplastic Lesions by Colonoscopy

Yamamoto H, Shinozaki , Hayashi Y, Miura Y, Khurelbaatar T, Osawa H, Lefor AK

Early detection and resection of neoplastic lesions are key objectives to diminish colorectal cancer mortality. Resection of superficial colorectal neoplasms, cold snare polypectomy, endoscopic mucosal resection, and endoscopic submucosal dissection...
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Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening

Osawa H, Miura Y, Takezawa T, Ino Y, Khurelbaatar T, Sagara Y, Lefor AK, Yamamoto H

White light imaging (WLI) may not reveal early upper gastrointestinal cancers. Linked color imaging (LCI) produces bright images in the distant view and is performed for the same screening indications...
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Measurement of Exhaled Nitric Oxide in Children: A Comparison Between NObreath® and NIOX VERO® Analyzers

Inoue Y, Sato S, Manabe T, Makita E, Chiyotanda M, Takahashi , Yamamoto H, Yanagida N, Ebisawa M

PURPOSE: Few studies have compared fractional exhaled nitric oxide (FeNO) measurement by NIOX VERO® (NOV) and other devices in children. Moreover, there is no agreement between differences in FeNO values...
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Governmental or Social Support of Bariatric Surgery in the Asia-Pacific Region

Lim J, Cho YH, Yamamoto H, Eng A, Markovic T, Kim KK

Herein we review the management status of governmental financial support of bariatric surgeries in several Asia-Pacific areas of Japan, Singapore, and Australia, which were discussed in the 2016 International Congress...
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Laser Imaging Facilitates Early Detection of Synchronous Adenocarcinomas in Patients with Barrett's Esophagus

Iwashita C, Miura Y, Osawa H, Takezawa T, Ino Y, Okada M, Lefor AK, Yamamoto H

Barrett's adenocarcinoma may occur in multiple sites, and recurrence and metachronous lesions are the major problems with endoscopic resection. Therefore, early detection of such lesions is ideal to achieve complete...
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Laterally Spreading Tumor of the Rectum Delineated with Linked Color Imaging Technology

Okada M, Sakamoto H, Takezawa T, Hayashi Y, Sunada K, Lefor AK, Yamamoto H

No abstract available.
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