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Kato S, Ono Y, Nakamura M, Fukino R, Nomura A, Matsumura M, Murai T, Itaya K, Koike Y, Izumi T, Endo A, Nishikawa S, Kuwatani M. Utility of a Passive Bending Colonoscope for Endoscopic Retrograde Cholangiopancreatography in Patients with Surgically Altered Anatomy. Dig Dis Sci 2024; 69:200-208. [PMID: 37930600 DOI: 10.1007/s10620-023-08163-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/17/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND AND AIM The utility of a passive bending colonoscope (PBCS) in ERCP for patients with surgically altered anatomy has not been established. This study compared the outcome of PBCS-ERCP and balloon-assisted enteroscope (BAE)-ERCP. METHODS This multicenter observational study included 343 patients with surgically altered anatomy who underwent ERCP. Among these, 110 underwent PBCS-ERCP and 233 underwent BAE-ERCP. Propensity score matching was applied, and a final cohort of 210 (105 in each group) with well-balanced backgrounds was analyzed. The primary outcome was the success rate of reaching anastomosis or ampulla of Vater. Secondary endpoints included the cannulation success rate, completion rate, procedure time (to reach, cannulate, complete), and adverse events. RESULTS The success rate for reaching the target was 91.4% (96/105) with PBCS and 90.5% (95/105) with BAE (odds ratio [95% CI] 1.12, [0.44-2.89], P = 0.809). The mean time required to reach the target was significantly shorter in PBCS: 10.04 min (SD, 9.62) with PBCS versus 18.77 min (SD, 13.21) with BAE (P < 0.001). There were no differences in the success of cannulation or procedure completion, although the required times for cannulation and procedure completion were significantly shorter in PBCS. The incidence of adverse events was significantly higher in BAE (19.0%) than in PBCS (4.8%; P < 0.001). CONCLUSIONS In patients with surgically altered anatomy, PBCS-ERCP showed promising results with shorter time to reach, cannulate, and a lower incidence of adverse events compared with BAE-ERCP. The success rate of reaching was favorable through PBCS compared with BAE. CLINICAL TRIAL REGISTRATION UMIN000045546.
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Affiliation(s)
- Shin Kato
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan.
| | - Yuji Ono
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Michio Nakamura
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Ryo Fukino
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Asako Nomura
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Mariko Matsumura
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Taichi Murai
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Kazufumi Itaya
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Yuta Koike
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Takaaki Izumi
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Ayana Endo
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Shuji Nishikawa
- Department of Gastroenterology, Sapporo City General Hospital, Kita 11, Nishi 13, Chuo-Ku, Sapporo, Hokkaido, 060-8604, Japan
| | - Masaki Kuwatani
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Hokkaido, Japan
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Hendel K, Hendel R, Hendel J, Hendel L. Pain perception during colonoscopy in relation to gender and equipment: a clinical study. Scand J Pain 2020; 20:747-753. [PMID: 32706754 DOI: 10.1515/sjpain-2019-0164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 06/01/2020] [Indexed: 11/15/2022]
Abstract
Objectives A trend for gender-related differences in pain perception during colonoscopies has previously been observed. No consecutive clinical studies have been conducted to confirm such a relation. We aimed to investigate gender-related differences during the colonoscopy procedure, and the impact of endoscopic equipment and psychological factors on pain management. Methods In a consecutive clinical study, 391 patients referred for colonoscopy reported pain perception on a 0-10 visual analogue scale (VAS) after the procedure. A sub-group of patients (n=38) were given alternate instructions expertly tailored by a psychologist and their VAS scores were compared with those from the main study population. Data from a previous study from the same specialist practice and same source patient population using previous-generation equipment was included for comparison. Results No overall gender-related difference in VAS reports was found. There was no reduction in VAS when alternate instructions were given. Female patients were, however, more likely to benefit from light sedation (p=0.012). When compared with previous-generation endoscopes, the current generation equipment resulted in a VAS drop of 1.9 points for women and 1.6 for men (p<0.009) and washed out a previously observed gender-related difference. Conclusion No overall gender-related differences were found for pain experience during the colonoscopy procedure. Access to up-to-date endoscopic equipment can reduce procedure-related patient discomfort considerably, even at the expert level of a consultant physician. Implications Gastroenterologists should consider utilizing high-end endoscopic equipment to improve pain management and reduce VAS to very acceptable levels.
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Affiliation(s)
| | - Rebecca Hendel
- Medical Gastroenterology, Rolighedsvej 47, Birkerød, Denmark
| | - Jakob Hendel
- Medical Gastroenterology, Rolighedsvej 47, Birkerød, Denmark
| | - Lene Hendel
- Medical Gastroenterology, Rolighedsvej 47, Birkerød, Denmark
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Tanisaka Y, Ryozawa S, Mizuide M, Kobayashi M, Fujita A, Minami K, Kobatake T, Omiya K, Iwano H, Araki R. Usefulness of the "newly designed" short-type single-balloon enteroscope for ERCP in patients with Roux-en-Y gastrectomy: a pilot study. Endosc Int Open 2018; 6:E1417-E1422. [PMID: 30505936 PMCID: PMC6264924 DOI: 10.1055/a-0754-2290] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 08/22/2018] [Indexed: 12/17/2022] Open
Abstract
Background and aims In recent years, the short single-balloon enteroscope (SBE) has been used during endoscopic retrograde cholangiopancreatography (ERCP) for patients with surgically altered anatomy and has been reported to be useful. However, difficulties remain, and the procedures and devices need improvements. We assessed the usefulness and superiority of a new short SBE equipped with passive bending and high-force transmission by comparisons with outcomes using the conventional short SBE. Methods This study evaluated short SBE-assisted ERCP-related procedures for Roux-en-Y gastrectomy between September 2011 and October 2017. Outcomes including the procedural success rate, which was the primary outcome, were assessed to compare the conventional short SBE (SIF-Y0004 [prototype]) and the new short SBE (SIF-H290S). Results Of 74 procedures performed in 61 patients, 51 procedures in 39 patients involved the SIF-Y0004, and 23 procedures in 22 patients involved the SIF-H290S. The procedural success rates were 70.6 % for SIF-Y0004, and 95.7 % for SIF-H290S, representing better results for the new short SBE ( P = 0.02). The new short SBE also had a superior diagnostic success rate ( P = 0.047) and median time to reach the blind end ( P < 0.001). Conclusions Roux-en-Y gastrectomy patients treated with the new short SBE had better outcomes than those treated with conventional short SBE. More cases need to be studied; however, the new short SBE has the potential to improve ERCP outcomes in patients with surgically altered anatomy.
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Affiliation(s)
- Yuki Tanisaka
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Shomei Ryozawa
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan,Corresponding author Shomei Ryozawa, MD, PhD Department of GastroenterologySaitama Medical University International Medical Center1397-1, YamaneHidakaSaitama 350-1298Japan+81-42-9844589
| | - Masafumi Mizuide
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Masanori Kobayashi
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Akashi Fujita
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Kazuhiro Minami
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Tsutomu Kobatake
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Kumiko Omiya
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Hirotoshi Iwano
- Department of Gastroenterology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Ryuichiro Araki
- Community Health Science Center, Saitama Medical University, Saitama, Japan
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Mizukami T, Sugimoto S, Masaoka T, Suzuki H, Kanai T. Colonic dysmotility and morphological abnormality frequently detected in Japanese patients with irritable bowel syndrome. Intest Res 2017; 15:236-243. [PMID: 28522955 PMCID: PMC5430017 DOI: 10.5217/ir.2017.15.2.236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/04/2016] [Accepted: 12/06/2016] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Colonoscopy and computed tomography (CT) are used primarily to exclude organic diseases in patients with irritable bowel syndrome (IBS), rather than to assess the pathophysiology of IBS. We aimed to evaluate colonic dysmotility and morphology in Japanese patients with IBS. Methods One hundred eighty-four patients with IBS and 49 asymptomatic controls who underwent colonoscopy in combination with CT colonography or barium enema were retrospectively reviewed between 2008 and 2012. Water-aided colonoscopy was performed without sedation by a single endoscopist. The duration and pattern of colonic movement and cecal intubation time were recorded. To assess colonic morphology, barium enema or CT colonography were performed immediately after colonoscopy. Results Colonic dysmotility was more frequent in the IBS group (28.8% vs. 2.0% in controls, P<0.001), especially in cases of IBS with diarrhea (IBS-D) (IBS with constipation [IBS-C] 28.8% vs. IBS-D 60.0% vs. mixed IBS [IBS-M] 5.1%, P<0.001). Colonic morphological abnormality was more frequent in the IBS group than in the control group (77.7% vs. 24.5%, P<0.001), especially in IBS-M and IBS-C groups (IBS-C 77.5% vs. IBS-D 48.9% vs. IBS-M 100%, P<0.001). Most patients with IBS with colonic dysmotility had experienced stress related to their symptoms. Cecal intubation time was significantly longer in the IBS group than in the control group (12.1±6.9 minutes vs. 4.6±1.9 minutes, P<0.001). Conclusions Unsedated colonoscopy, combined with radiographic findings, can detect colonic dysmotility and morphological abnormality. Technical difficulties observed during cecal intubation may partially explain the pathophysiology of IBS.
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Affiliation(s)
- Takeshi Mizukami
- Endoscopy Center, NHO Kurihama Medical and Addiction Center, Yokosuka, Japan
| | - Shinya Sugimoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tatsuhiro Masaoka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hidekazu Suzuki
- Medical Education 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
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Sugimoto S, Mizukami T. Diagnostic and therapeutic applications of water-immersion colonoscopy. World J Gastroenterol 2015; 21:6451-6459. [PMID: 26074684 PMCID: PMC4458756 DOI: 10.3748/wjg.v21.i21.6451] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/15/2015] [Accepted: 04/28/2015] [Indexed: 02/06/2023] Open
Abstract
Colonoscopy techniques combining or replacing air insufflation with water infusion are becoming increasingly popular. They were originally designed to reduce colonic spasms, facilitate cecal intubation, and lower patient discomfort and the need for sedation. These maneuvers straighten the rectosigmoid colon and enable the colonoscope to be inserted deeply without causing looping of the colon. Water-immersion colonoscopy minimizes colonic distension and improves visibility by introducing a small amount of water. In addition, since pain during colonoscopy indicates risk of bowel perforation and sedation masks this important warning, this method has the potential to be the favored insertion technique because it promotes patient safety without sedation. Recently, this water-immersion method has not only been used for colonoscope insertion, but has also been applied to therapy for sigmoid volvulus, removal of lesions, lower gastrointestinal bleeding, and therapeutic diagnosis of abnormal bowel morphology and irritable bowel syndrome. Although a larger sample size and prospective head-to-head-designed studies will be needed, this review focuses on the usefulness of water-immersion colonoscopy for diagnostic and therapeutic applications.
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Yamauchi H, Kida M, Okuwaki K, Miyazawa S, Iwai T, Tokunaga S, Takezawa M, Imaizumi H, Koizumi W. Passive-bending, short-type single-balloon enteroscope for endoscopic retrograde cholangiopancreatography in Roux-en-Y anastomosis patients. World J Gastroenterol 2015; 21:1546-1553. [PMID: 25663773 PMCID: PMC4316096 DOI: 10.3748/wjg.v21.i5.1546] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 07/29/2014] [Accepted: 10/15/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate short-type-single-balloon enteroscope (SBE) with passive-bending, high-force transmission functions for endoscopic retrograde cholangiopancreatography (ERCP) in patients with Roux-en-Y anastomosis.
METHODS: Short-type SBE with this technology (SIF-Y0004-V01; working length, 1520 mm; channel diameter, 3.2 mm) was used to perform 50 ERCP procedures in 37 patients with Roux-en-Y anastomosis. The rate of reaching the blind end, time required to reach the blind end, diagnostic and therapeutic success rates, and procedure time and complications were studied retrospectively and compared with the results of 34 sessions of ERCP performed using a short-type SBE without this technology (SIF-Y0004; working length, 1520 mm; channel diameter, 3.2 mm) in 25 patients.
RESULTS: The rate of reaching the blind end was 90% with SIF-Y0004-V01 and 91% with SIF-Y0004 (P = 0.59). The median time required to reach the papilla was significantly shorter with SIF-Y0004-V01 than with SIF-Y0004 (16 min vs 24 min, P = 0.04). The diagnostic success rate was 93% with SIF-Y0004-V01 and 84% with SIF-Y0004 (P = 0.17). The therapeutic success rate was 95% with SIF-Y0004-V01 and 96% with SIF-Y0004 (P = 0.68). The median procedure time was 40 min with SIF-Y0004-V01 and 36 min with SIF-Y0004 (P = 0.50). The incidence of hyperamylasemia was 6.0% in the SIF-Y0004-V01 group and 14.7% in the SIF-Y0004 group (P = 0.723). The incidence of pancreatitis was 0% in the SIF-Y0004-V01 group and 5.9% in the SIF-Y0004 group (P > 0.999). The incidence of gastrointestinal perforation was 2.0% (1/50) in the SIF-Y0004-V01 group and 2.9% (1/34) in the SIF-Y0004 group (P > 0.999).
CONCLUSION: SIF-Y0004-V01 is useful for ERCP in patients with Roux-en-Y anastomosis and may reduce the time required to reach the blind end.
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Ogawa T, Ohda Y, Nagase K, Kono T, Tozawa K, Tomita T, Iimuro M, Hida N, Oshima T, Fukui H, Hori K, Watari J, Nakamura S, Miwa H. Evaluation of discomfort during colonoscopy with conventional and ultrathin colonoscopes in ulcerative colitis patients. Dig Endosc 2015; 27:99-105. [PMID: 24995962 DOI: 10.1111/den.12323] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 06/10/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIM In patients with ulcerative colitis (UC), colonoscopy is an essential procedure for evaluating mucosal damage, and treatment outcomes. A new flexible ultrathin colonoscope (PCF-PQ260) has been developed to readily pass through tortuous and narrow lesions of the colon and cause minimum patient discomfort. The objective of the present study was to evaluate the comfort and performance of this new type of scope in UC patients who underwent colonoscopy for estimation of mucosal inflammation, basically without sedation. METHODS In a prospective, single-center setting, among 107 UC patients who were to undergo colonoscopy, 84 eligible cases were randomly assigned to the new ultrathin flexible colonoscope, PCF-PQ260 (n = 42) or to a conventional colonoscope, PCF-Q260A (n = 42). Main outcome measure was patient pain level determined by visual analogue scale (VAS) with 0 = none, and 100 = extremely painful. Other outcomes were cecal intubation time, rate of complete intubation (to reach the cecum) and rate of procedural complications. RESULTS VAS score was significantly lower in the new-scope group as compared with the conventional-scope group: mean ± SD, median (range): 19.3 ± 16.9, 14 (0-62) vs 32.0 ± 21.6, 31.8 (0-100, P = 0.005). However, cecal intubation rate (97.6%) and time (4 min) were similar in the two groups. There was no procedure-related serious complication in either group. CONCLUSION The findings indicated that the flexible ultrathin colonoscope PCF-PQ260 has significantly better tolerability in UC patients compared to a conventional colonoscope.
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Affiliation(s)
- Tomohiro Ogawa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
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Cuesta R, Sola-Vera J, Uceda F, García Sepulcre MF, Morillo E, Vázquez N. Does "responsive insertion technology" improve practice of colonoscopy? Results of a randomized study. Scand J Gastroenterol 2014; 49:355-61. [PMID: 24417584 DOI: 10.3109/00365521.2013.871576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE. During colonoscopy, advancing the endoscope can sometimes be difficult due to the appearance of loops or bends in the insertion tube. Therefore, research continues toward improving colonoscope technology. The aim of this study is to compare the use of colonoscopes equipped with "responsive insertion technology" (RIT) versus regular non-RIT colonoscopes. MATERIALS AND METHODS. Prospective, comparative and randomized trials that included patients submitted to colonoscopy. In group I, RIT colonoscopes were used, while in group II, colonoscopies with variable stiffness but without the other components of the RIT technology were used. Demographic variables and variables related to colonoscopy, as well as the pain perceived by the patient and the difficulty in performing endoscopy were recorded. RESULTS. A total of 122 patients were included in group I and 120 patients in group II. The cecal intubation rate was similar in both groups. The use of the RIT colonoscopes was associated with a lower cecal intubation time (4.4 ± 2.0 vs. 5.4 ± 3.5, p = 0.005) and a lower difficulty in performing examinations for both the endoscopist (19.1 ± 20.0 vs. 27.7 ± 22.2, p = 0.002) and the nursing staff (20.8 ± 17.0 vs. 26.3 ± 19.6, p = 0.04). No significant differences were found between both groups in the need for ancillary maneuvers or in the pain perceived by the patient. CONCLUSIONS. RIT colonoscopes allow cecal intubation in a shorter time compared to variable stiffness colonoscopes, and are associated with a greater level of ease of the procedure.
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Affiliation(s)
- Rubén Cuesta
- Hospital General Universitario de Elche, Digestive Medicine , Elche , Spain
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Abstract
Gastrointestinal endoscopy is a rapidly evolving field. Techniques in endoscopy continue to become more sophisticated, as do the devices and platforms, particularly in colonoscopy and endoscopic resection. This article reviews new platforms for endoscopic imaging of the colon, and discusses new endoscopic accessories and developments in endoscopic resection.
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