1
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Huang CW, Yen HH, Chen YY. Successful hemostasis with red dichromatic imaging for bleeding rectal dieulafoy's lesion. Endoscopy 2024; 56:E160-E161. [PMID: 38359890 PMCID: PMC10869226 DOI: 10.1055/a-2253-8797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Affiliation(s)
- Chih-Wen Huang
- Division of Gastroenterology, Changhua Christian Hospital, Changhua, Taiwan
| | - Hsu-Heng Yen
- Division of Gastroenterology, Changhua Christian Hospital, Changhua, Taiwan
- Department of Post-Baccalaureate Medicine,College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yang-Yuan Chen
- Division of Gastroenterology, Changhua Christian Hospital, Changhua, Taiwan
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2
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Miyazaki K, Kato M, Sasaki M, Iwata K, Masunaga T, Kubosawa Y, Hayashi Y, Mizutani M, Kiguchi Y, Takatori Y, Mutaguchi M, Matsuura N, Nakayama A, Takabayashi K, Kanai T, Yahagi N. Red dichromatic imaging reduces bleeding and hematoma during submucosal injection in esophageal endoscopic submucosal dissection. Surg Endosc 2022; 36:8076-8085. [PMID: 35437640 DOI: 10.1007/s00464-022-09244-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/02/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Bleeding and hematoma formation during submucosal injection in esophageal endoscopic submucosal dissection (ESD) reduce the visibility of the submucosa. Red dichromatic imaging (RDI) is an endoscopic technique that provides better visualization of the deep submucosal blood vessels. We speculated that blood vessel injury could be avoided with RDI. This pilot study evaluated the role of RDI in preventing bleeding and hematoma formation during esophageal ESD. METHODS This was a single-center retrospective observational study. We examined 60 patients who underwent ESD with white light imaging (WLI) and RDI. A single endoscopist reviewed all of the surgical videos to document the incidence and severity of bleeding episodes. Eighteen videos provided adequate quality and detail, and the number of blood vessels traversing the mucosal incision lines of the lesions in these videos was evaluated under WLI and RDI. RESULTS The WLI group had a significantly higher incidence of hematomas per unit area compared to the RDI group (0.18/cm2 [range 0-0.38] vs. 0 [0-0.18]/cm2, p = 0.024). The WLI group also had a significantly higher incidence of total bleeding episodes compared to the RDI group (42.9% [range 21.7-60.4] vs 16.7% [range 13.8-22.9], p < 0.001). Significantly more blood vessels were visible under RDI compared to WLI (5 [range 4-8] vs. 2 [range 1-5], p = 0.0020). CONCLUSION RDI reduced the incidence of bleeding and hematoma formation during submucosal injection in esophageal ESD. It was assumed that the improvement of blood vessel visibility by RDI might have contributed to the result.
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Affiliation(s)
- Kurato Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Motohiko Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan. .,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Motoki Sasaki
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kentaro Iwata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Teppei Masunaga
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoko Kubosawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yukie Hayashi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mari Mizutani
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoshiyuki Kiguchi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yusaku Takatori
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Makoto Mutaguchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Saitama City Hospital, Saitama, Japan
| | - Noriko Matsuura
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Atsushi Nakayama
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kaoru Takabayashi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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3
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Funasaka K, Miyahara R, Horiguchi N, Omori T, Osaki H, Yoshida D, Yamada H, Koyama K, Nagasaka M, Nakagawa Y, Hashimoto S, Shibata T, Hirooka Y. Novel image enhancement technology that helps find bleeding points during endoscopic submucosal dissection of gastric neoplasms. J Gastroenterol Hepatol 2022; 37:1955-1962. [PMID: 35945162 DOI: 10.1111/jgh.15975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM The management of bleeding during endoscopic submucosal dissection (ESD) is critical and related to the procedure time. We collaborated on a new image enhancement algorithm with parameter optimization for clinical use being developed by FUJIFILM Co. and processed white light image data offline to evaluate the effectiveness of this technology. This study aims to evaluate the clinical usefulness of this technology. METHODS Eighteen video scenes of bleeding points from five gastric ESDs were selected and processed by the new image enhancement algorithm. The time until a bleeding point was found, visibility of a bleeding point, and color abnormality of the submucosal layer were evaluated by ESD experts, ESD trainees, and endoscopy trainees. The color differences between the bleeding point and the surroundings in CIE-L*a*b* color space were calculated in the original and enhanced images. RESULTS The time until a bleeding point was found in the enhanced videos was significantly shorter than that in the original videos (11.10 s vs 13.85 s) (P = 0.017). On a 5-point (-2 to +2) Likert scale of visibility, the enhanced image was slightly superior to the original (+0.45), and the appearance of the submucosa was comparable between images (+0.14). The color difference among the bleeding areas on the enhanced images was significantly larger than that on the original images (10.93 vs 8.36). CONCLUSION This novel image enhancement algorithm emphasizes the color difference between a bleeding point and the surrounding area, which would help find bleeding points faster during ESD for the less experienced endoscopists.
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Affiliation(s)
- Kohei Funasaka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Ryoji Miyahara
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Noriyuki Horiguchi
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Takafumi Omori
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Hayato Osaki
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Dai Yoshida
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Hyuga Yamada
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Keishi Koyama
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Mitsuo Nagasaka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Yoshiyuki Nakagawa
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Senju Hashimoto
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Tomoyuki Shibata
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
| | - Yoshiki Hirooka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi, Japan
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4
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Uraoka T, Igarashi M. Development and clinical usefulness of a unique red dichromatic imaging technology in gastrointestinal endoscopy: A narrative review. Therap Adv Gastroenterol 2022; 15:17562848221118302. [PMID: 36082177 PMCID: PMC9445450 DOI: 10.1177/17562848221118302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023] Open
Abstract
Image-enhanced endoscopy (IEE) allows real-time high-contrast imaging of a targeted lesion without any special equipment. Among various IEE technologies, narrow-band imaging, in which a light of shorter wavelength is used, emphasizes the surface and blood vessel patterns on the mucosal surface. This technology has been widely used in endoscopic diagnosis in the gastrointestinal tract. Red dichromatic imaging (RDI) was recently developed; it utilizes lights of longer wavelengths (520-550, 595-610, and 620-640 nm), which have weak light scattering characteristics in contrast to narrow-band imaging. RDI was designed to enhance the visibility of deep-lying blood vessels and areas of bleeding, and it has been installed in the latest Olympus endoscopy system, EVIS X1, as an advanced version of the optical-digital method that was originally developed. Improving the visibility of deep blood vessels allows more accurate evaluation of esophageal varices and the degree of inflammation in ulcerative colitis. Easier identification of a bleeding source makes hemostasis quicker and easier to accomplish during endoscopic resection procedures such as endoscopic submucosal dissection and peroral endoscopic myotomy as well as during treatment of gastrointestinal bleeding from a peptide ulcer or colon diverticulum. The authors herein review the technological development and principles, review the existing literature on RDI, and discuss the utility and effectiveness of this unique IEE technology in gastrointestinal endoscopy.
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5
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Al-Sabban AHM, Al-Kawas FH. Red dichromatic imaging in acute GI bleeding: Does it make a difference? Gastrointest Endosc 2022; 95:701-702. [PMID: 35120733 DOI: 10.1016/j.gie.2021.11.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 11/30/2021] [Indexed: 02/08/2023]
Affiliation(s)
- Abdul Hamid M Al-Sabban
- Division of Gastroenterology, Ochsner Baton Rouge Medical Center, Baton Rouge, Louisiana, USA
| | - Firas H Al-Kawas
- Division of Gastroenterology, Inova Health System, Falls Church, Virginia, USA
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6
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Furuichi Y, Abe M, Takeuchi H, Yoshimasu Y, Itoi T. Red dichromatic imaging reduces endoscopic treatment time of esophageal varices by increasing bleeding point visibility (with video). Dig Endosc 2022; 34:87-95. [PMID: 33971049 DOI: 10.1111/den.14011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Red dichromatic imaging (RDI) is a novel image-enhanced endoscopy released in 2020, which increases the visibility of deeper vessels. In this study, we retrospectively investigated whether RDI can shorten treatment times of endoscopic injection sclerotherapy (EIS), and which operational procedure times are affected compared with white light imaging (WLI). METHODS A total of 155 patients (RDI, 70; WLI, 85) with risky esophageal varices (EV), who were treated with EIS were analyzed. Treatment times were compared, and predictors associated with treatment time were analyzed by multivariate analysis. For 24 cases (RDI, 12; WLI, 12) in which treatment videos were recorded, the procedure times of each step (observation of EV, needle flush, positioning, puncture, observation of bleeding, hemostasis, observation after hemostasis) were measured. Regarding the seven patients with EV bleeding, color differences were calculated between the bleeding point and the blood pool using the CIE (L*a*b*) color measurement method, and results were compared between using RDI and WLI. RESULTS Treatment times were shorter in the RDI group (RDI vs. WLI = 35.1 vs. 42.2 min; P < 0.01). 'RDI function' and 'amount of sclerosant' were extracted as independent predictors of treatment time. Times for 'observation of EV' and 'observation of bleeding' were shorter in the RDI group (P = 0.01 and <0.01, respectively). Regarding the color difference, RDI significantly increased bleeding point visibility (RDI vs. WLI = 31.4 ± 11.8 vs. 8.6 ± 6.2, P < 0.001). CONCLUSION Red dichromatic imaging can shorten the treatment time of EIS by increasing bleeding point visibility.
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Affiliation(s)
- Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.,Department of Gastroenterology, Niiza Shiki Central General Hospital, Saitama, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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7
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Nabi Z, Chavan R, Ramchandani M, Darisetty S, Reddy DN. Endoscopic submucosal dissection and tunneling procedures using novel image-enhanced technique. VideoGIE 2022; 7:158-163. [PMID: 35937197 PMCID: PMC9347009 DOI: 10.1016/j.vgie.2021.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background and Aims Recent innovations in image-enhanced endoscopy allow early detection and management of GI lesions. In this study, we aim to analyze the utility of texture and color enhancement imaging (TXI) and red dichromatic imaging (RDI) during endoscopic submucosal dissection (ESD) and submucosal tunneling procedures. Methods Patients who underwent ESD, submucosal tunneling endoscopic resection, and peroral endoscopic myotomy (POEM) using the novel imaging technique including TXI and RDI were included in the study. Results Twenty-five patients (13 male; age 43 ± 15.69 years) underwent POEM for achalasia (n = 20), submucosal tunneling endoscopic resection for esophageal subepithelial lesions (n = 3), and ESD for gastric neuroendocrine tumors (n = 2). All of the procedures were successfully performed. Mean procedure duration was 55.52 ± 21.61 minutes. TXI mode was used in all the cases, whereas RDI mode was used on 15 occasions. While using RDI mode, hemostasis was achieved in 1 attempt on 12 (80%) occasions. The site of mucosal incision was revised in 3 cases during POEM based on TXI and RDI modes. Conclusions Submucosal tunneling and endoscopic dissection procedures can be conveniently performed using a new image-enhanced technique. RDI is useful in localizing the site of bleeding during endoscopic dissection.
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Affiliation(s)
- Zaheer Nabi
- Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - Radhika Chavan
- Asian Institute of Gastroenterology, Hyderabad, Telangana, India
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8
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Miyazaki K, Kato M, Matsuura N, Kanai T, Yahagi N. Esophageal endoscopic submucosal dissection on postendoscopic variceal ligation scars with injection under red dichromatic imaging. VideoGIE 2021; 6:536-539. [PMID: 34917863 PMCID: PMC8645840 DOI: 10.1016/j.vgie.2021.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Kurato Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Motohiko Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.,Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Noriko Matsuura
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
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9
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Miyamoto S, Ohya TR, Nishi K, Abiko S, Sugiura R, Yamamoto Y, Sakamoto N. Effectiveness of red dichromatic imaging for dissection of the submucosal layer when hematoma is encountered. Endoscopy 2021; 53:E413-E414. [PMID: 33445202 DOI: 10.1055/a-1333-0831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shuichi Miyamoto
- Department of Gastroenterology and Hepatology, Hakodate Municipal Hospital, Hakodate, Japan.,Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - Tomohiko R Ohya
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan
| | - Kaori Nishi
- Department of Nursing, Hakodate Municipal Hospital, Hakodate, Japan
| | - Satoshi Abiko
- Department of Gastroenterology and Hepatology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Ryo Sugiura
- Department of Gastroenterology and Hepatology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Yoshiya Yamamoto
- Department of Gastroenterology and Hepatology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Naoya Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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10
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Hirai Y, Kayashima A, Nakazato Y, Fujimoto A. Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report. World J Gastrointest Endosc 2021; 13:233-237. [PMID: 34326944 PMCID: PMC8311470 DOI: 10.4253/wjge.v13.i7.233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/14/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Red dichromatic imaging (RDI) is a novel image-enhanced endoscopy expected to improve the visibility of the bleeding point. However, it has not been thoroughly investigated.
CASE SUMMARY A 91-year-old man developed a sudden massive hematochezia and underwent emergent colonoscopy. An ulcer with pulsatile bleeding was found on the lower rectum. Due to massive bleeding, the exact location of the bleeding point was not easy to detect with white light imaging (WLI). Upon switching to RDI, the bleeding point appeared in deeper yellow compared to the surrounding blood. Thus, RDI enabled us for easier recognition of the bleeding point, and hemostasis was achieved successfully. Furthermore, we reviewed endoscopic images and evaluated the color difference between the bleeding point and surrounding blood for WLI and RDI. In our case, the color difference of RDI was greater than that of WLI (9. 75 vs 6. 61), and RDI showed a better distinguished bleeding point from the surrounding blood.
CONCLUSION RDI may improve visualization of the bleeding point by providing better contrast in color difference relative to surrounding blood.
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Affiliation(s)
- Yuichiro Hirai
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan
| | - Atsuto Kayashima
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan
| | - Yoshihiro Nakazato
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan
| | - Ai Fujimoto
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan
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Kv A, Ramchandani M, Inavolu P, Nabi Z, Reddy DN. Red dichromatic imaging in peroral endoscopic myotomy: a novel image-enhancing technique. VideoGIE 2021; 6:203-206. [PMID: 34027247 PMCID: PMC8119904 DOI: 10.1016/j.vgie.2021.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Video 1Red dichromatic imaging in peroral endoscopic myotomy.
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Affiliation(s)
- Anudeep Kv
- Department of Medical Gastroenterology, AIG Hospitals and Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - Mohan Ramchandani
- Department of Medical Gastroenterology, AIG Hospitals and Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - Pradev Inavolu
- Department of Medical Gastroenterology, AIG Hospitals and Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - Zaheer Nabi
- Department of Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, Telangana, India
| | - D Nageshwar Reddy
- Department of Medical Gastroenterology, AIG Hospitals and Asian Institute of Gastroenterology, Hyderabad, Telangana, India
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12
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Spósito L, Fortunato GC, de Camargo BAF, Ramos MADS, Souza MPCD, Meneguin AB, Bauab TM, Chorilli M. Exploiting drug delivery systems for oral route in the peptic ulcer disease treatment. J Drug Target 2021; 29:1029-1047. [PMID: 33729081 DOI: 10.1080/1061186x.2021.1904249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Peptic ulcer disease (PUD) is a common condition that is induced by acid and pepsin causing lesions in the mucosa of the duodenum and stomach. The pathogenesis of PUD is a many-sided scenario, which involves an imbalance between protective factors, such as prostaglandins, blood flow, and cell renewal, and aggressive ones, like alcohol abuse, smoking, Helicobacter pylori colonisation, and the use of non-steroidal anti-inflammatory drugs. The standard oral treatment is well established; however, several problems can decrease the success of this therapy, such as drug degradation in the gastric environment, low oral bioavailability, and lack of vectorisation to the target site. In this way, the use of strategies to improve the effectiveness of these conventional drugs becomes interesting. Currently, the use of drug delivery systems is being explored as an option to improve the drug therapy limitations, such as antimicrobial resistance, low bioavailability, molecule degradation in an acid environment, and low concentration of the drug at the site of action. This article provides a review of oral drug delivery systems looking for improving the treatment of PUD.
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Affiliation(s)
- Larissa Spósito
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Giovanna Capaldi Fortunato
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Bruna Almeida Furquim de Camargo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | | | | | - Andréia Bagliotti Meneguin
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Taís Maria Bauab
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil
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13
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He Z, Wang P, Liang Y, Fu Z, Ye X. Clinically Available Optical Imaging Technologies in Endoscopic Lesion Detection: Current Status and Future Perspective. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:7594513. [PMID: 33628407 PMCID: PMC7886528 DOI: 10.1155/2021/7594513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/13/2021] [Accepted: 01/27/2021] [Indexed: 01/02/2023]
Abstract
Endoscopic optical imaging technologies for the detection and evaluation of dysplasia and early cancer have made great strides in recent decades. With the capacity of in vivo early detection of subtle lesions, they allow modern endoscopists to provide accurate and effective optical diagnosis in real time. This review mainly analyzes the current status of clinically available endoscopic optical imaging techniques, with emphasis on the latest updates of existing techniques. We summarize current coverage of these technologies in major hospital departments such as gastroenterology, urology, gynecology, otolaryngology, pneumology, and laparoscopic surgery. In order to promote a broader understanding, we further cover the underlying principles of these technologies and analyze their performance. Moreover, we provide a brief overview of future perspectives in related technologies, such as computer-assisted diagnosis (CAD) algorithms dealing with exploring endoscopic video data. We believe all these efforts will benefit the healthcare of the community, help endoscopists improve the accuracy of diagnosis, and relieve patients' suffering.
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Affiliation(s)
- Zhongyu He
- Biosensor National Special Laboratory, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Peng Wang
- Biosensor National Special Laboratory, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Yuelong Liang
- Department of General Surgery, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Zuoming Fu
- Biosensor National Special Laboratory, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Xuesong Ye
- Biosensor National Special Laboratory, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory of CAD and CG, Zhejiang University, Hangzhou 310058, China
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