scholarly journals Efficacy of Combination Colonoscopy Using Modified Cap-assisted and Water-exchange Colonoscopy with Prone Position in the Detection of Colorectal Adenomas: A Retrospective Study

2021 ◽  
Author(s):  
Jihwan Ko ◽  
Hyung Wook Kim ◽  
Byung Gu Ko ◽  
Seong Ho Han
Keyword(s):  
Prone Position ◽  
Detection Rate ◽  
Water Exchange ◽  
Colorectal Adenomas ◽  
Conventional Colonoscopy ◽  
Polyp Detection ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Significant Difference ◽  
Proximal Map

Abstract Background: The efficacy of cap-assisted and water-exchange colonoscopy for adenoma detection, individually or in combination, is well documented but the efficacy of the combination colonoscopy using the above methods with prone position for adenoma detection is unclear. We compared the effectiveness of the combination colonoscopy using modified cap-assisted and water-exchange colonoscopy with prone position (CWP) and conventional colonoscopy (CC) for adenoma detection.Methods: A total of 746 patients who underwent either CWP or CC, performed by two board-certified gastroenterologists between December 2019 and March 2020, were investigated retrospectively. Cap-assisted colonoscopy was modified using hooking and dragging maneuver. We evaluated the polyp detection rate (PDR), adenoma detection rate (ADR), and mean number of adenomas detected per procedure (MAP). Results: There was no significant difference in sex, age, the indication of colonoscopy and quality of bowel preparation between the two groups. The PDR, ADR, and proximal MAP were significantly higher in the CWP group than the CC group (PDR: 84.9% vs. 59.8%, P < 0.001; ADR: 70.1%, vs. 49.2%, P < 0.001; proximal MAP: 1.24 vs. 0.55, P < 0.001). Amongst males, total and proximal MAP were significantly higher in the CWP group than the CC group, respectively (2.28 ± 2.24 vs. 1.49 ± 1.92, P < 0.001; 1.73 ± 1.98 vs. 0.74 ± 1.21, P < 0.001). Conclusions: Combination colonoscopy is more effective than conventional colonoscopy for the PDR, ADR, and proximal MAP. Further studies assessing the synergistic or complementary effects of the combination are needed.

scholarly journals Effect of combined cap-assisted, water-aided, and prone position colonoscopy for adenoma detection: A retrospective study

2020 ◽  
Author(s):  
Jihwan Ko ◽  
Byung Gu Ko ◽  
Seong Ho Han ◽  
Hyung Wook Kim
Keyword(s):  
Prone Position ◽  
Detection Rate ◽  
Occult Blood ◽  
Proximal Colon ◽  
Fecal Occult Blood ◽  
Polyp Detection ◽  
Exact Test ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Significant Difference

AbstractBackgroundThe efficacy of cap-assisted, water-aided, and 12 o’clock-prone position colonoscopy as individual techniques for adenoma detection is well documented. However, the efficacy of the combination of the three colonoscopy methods is unclear. Therefore, the present study aimed to retrospectively compare the efficacy between combined-method colonoscopy (CMC) and standard colonoscopy (SC).Methods and FindingsA total of 746 patients who underwent either CMC or SC, performed by two board-certified gastroenterologists between December 2019 and March 2020 at Baekyang Jeil Internal Medicine Clinic, were retrospectively evaluated. We evaluated polyp detection rate (PDR), adenoma detection rate (ADR), and mean number of adenomas detected per procedure (MAP). Statistical analysis for comparison between the groups was performed using the Student’s t-test, and ADR and PDR were analyzed using Fisher’s exact test. The study population was predominantly women (55.4%). The mean patient age (standard deviation) was 62.87 (±7.83) years. There was no significant difference in sex, number of fecal occult blood test-positive patients, and age between the two groups. The PDR, ADR, and proximal colon MAP were significantly higher in the CMC group than in the SC group (PDR: 59.8% vs. 84.9%, p < 0.001; ADR: 49.2% vs. 70.1%, p < 0.001; proximal colon MAP: 0.55 vs. 1.24, p < 0.001).ConclusionsCompared with SC, CMC increases PDR, ADR, and MAP, especially proximal colon MAP. Therefore, CMC may be more useful than SC in clinical settings. This study is the first to evaluate the efficacy of the three techniques in combination.

scholarly journals A120 NO EVIDENCE OF A FRIDAY EFFECT ON COLONOSCOPY QUALITY OUTCOMES

2021 ◽  
Vol 4 (Supplement_1) ◽  
pp. 101-102
Author(s):  
Z Hindi ◽  
L Guizzetti ◽  
S cocco ◽  
M Brahmania ◽  
A Wilson ◽  
...  
Keyword(s):  
Detection Rate ◽  
Hospital Setting ◽  
Polyp Detection ◽  
Cecal Intubation ◽  
Detection Rates ◽  
Adjusted Risk ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Significant Difference ◽  
Colonoscopy Quality

Abstract Background Colonoscopy quality may be influenced by operator fatigue. Prior studies have shown lower adenoma detection rates for procedures performed at the end of the day. However, it is unknown if colonoscopy quality is impaired at the end of the work week. Aims We investigated whether colonoscopy quality-related metrics differ at the end of the work week using the South West Ontario Colonoscopy Cohort. Methods Between April 2017 to February 2018, 45,510 consecutive colonoscopies from 20 academic and community hospitals in our health region were captured to form the cohort. In Canada, outpatient endoscopies are generally performed between Monday to Friday, taking Friday, or the last business day, as the last day of the work week compared to the rest of the work week. When a statutory holiday occurred on a Friday, Thursday was designated the last day of the work week. The primary outcome was adenoma detection rate (ADR), and secondary outcomes were sessile serrated polyp detection rate (ssPDR), polyp detection rate (PDR), and failed cecal intubation. Outcomes were presented as unadjusted and adjusted risk ratios derived from modified Poisson regression and adjusting for physician-level clustering, and characteristics of the patient (age, sex, severity), procedure (hospital setting, trainee presence, indication, sedation, bowel preparation quality) and physician (experience and specialty). Results During the observation period, 9,132 colonoscopies were performed on the last day of the work week compared to 36,378 procedures during the rest of the work week. No significant difference was observed for ADR (26.4% vs. 26.6%, p=0.75), ssPDR (4.5% vs. 5.0%, p=0.12), PDR (44.1% vs. 43.1%, p=0.081), or failed cecal intubation (2.8% vs. 2.9%, p=0.51) for colonoscopies performed on the last day of the work week compared to the rest of the week, respectively. After adjusting for potential confounders, there were no significant differences in the ADR (RR 1.01, 95% CI [0.88, 1.15], p=0.94), ssPDR (RR 0.90, 95% CI [0.70, 1.14], p=0.38), PDR (RR 1.00, 95% CI [0.92, 1.09], p=0.94), or failed cecal intubation (RR 0.92, 95% CI [0.72, 1.18], p=0.51) for colonoscopies performed on the last day of the work week compared to the rest of week, respectively. Conclusions Colonoscopy quality metrics, including ADR, ssPDR, PDR, and failed cecal intubation are not significantly different at the end of the week. Funding Agencies None

Impact of telemedicine on colonoscopy education among veterans.

2019 ◽  
Vol 37 (27_suppl) ◽  
pp. 276-276
Author(s):  
Thi Khuc ◽  
Christian Jackson ◽  
Daniel Chao
Keyword(s):  
Primary Care ◽  
Detection Rate ◽  
Attendance Rates ◽  
Polyp Detection ◽  
Education Class ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Significant Difference ◽  
History Of ◽  
Colonoscopy Preparation

276 Background: The VA Loma Linda Healthcare System (LLVA) offers an in-person colonoscopy education class (IPCC) and a telehealth based education class to patients living closer to outlying VA designated Community Based Outpatient Clinics (CBOCs). We noticed a significant number of cancellations and no-shows for colonoscopy from patients who sought care from CBOCS. We developed a telehealth based colonoscopy class (TBCC) to be given at CBOCs. The primary aim of the study was to determine effectiveness of TBCC compared to IPCC on class attendance rates, colonoscopy attendance and quality measures of colonoscopy. Methods: We reviewed records of 1429 LLVA and CBOC patients referred for colonoscopy class from April 2014 to April 2015. Primary end points were polyp detection rate (PDR), adenomas detection rate (ADR) and adenocarcinoma detection rate (ACDR). Secondary endpoints were attendance to TBCC and IPCC and attendance to colonoscopy. Attendance was defined as compliance with the first scheduled appointment. We examined age, BMI, sex, race, and indication for colonoscopy in the IPCC and TBCC populations. Results: TBCC attendance rate was higher than IPCC (p = 0.001). There was no difference in attendance to colonoscopy (p = 0.50). Patients receiving primary care at CBOCs more likely chose TBCC; patients receiving primary care at LLVA more likely chose IPCC (92.53% vs 24.77%, p < 0.0001). African Americans and Hispanics more likely chose IPCC; Whites more likely chose TBCC (p = .01). Patients with family history of colorectal cancer or bright red blood per rectum more likely chose IPCC (p = 0.004, p = 0.008). Sixty eight percent of colonoscopy preparations were noted to be good. There was no difference in the number of good preparations between TBCC and IPCC groups (94.3% and 96%, p = 0.025). ADR was higher in patients who received IPCC (44.55% and 52.17%, p = 0.02). There was no significant difference in PDR and ACDR between TBCC and IPCC groups. Conclusions: A TBCC program can increase patient attendance to colonoscopy preparation training without negatively affecting quality of colonoscopy preparation. Prospective, randomized studies on differences in adenoma detection and distance from home residence on class and colonoscopy attendance rates is needed.

scholarly journals PROXIMAL SERRATED POLYP DETECTION RATE: A COMPLEMENTARY QUALITY INDICATOR FOR ADENOMA DETECTION RATE?

2020 ◽  
Vol 57 (4) ◽  
pp. 466-470
Author(s):  
Fernando Antônio Vieira LEITE ◽  
Luiz Cláudio Miranda ROCHA ◽  
Rodrigo Roda Rodrigues SILVA ◽  
Eduardo Garcia VILELA ◽  
Luiz Ronaldo ALBERTI ◽  
...  
Keyword(s):  
Quality Indicator ◽  
Detection Rate ◽  
Adenoma Detection Rate ◽  
Screening Colonoscopy ◽  
Polyp Detection ◽  
Historical Cohort ◽  
Serrated Polyp ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Significant Difference

ABSTRACT BACKGROUND: The effectiveness of colonoscopy for colorectal cancer (CRC) screening depends on quality indicators, which adenoma detection rate (ADR) being the most important. Proximal serrated polyp detection rate (pSPDR) has been studied as a potential quality indicator for colonoscopy. OBJECTIVE: The aim is to analyze and compare the difference in ADR and pSPDR between patients undergoing screening colonoscopy and an unselected population with other indications for colonoscopy, including surveillance and diagnosis. METHODS: This is a historical cohort of patients who underwent colonoscopy in the digestive endoscopy service of a tertiary hospital. Out of 1554 colonoscopies performed, 573 patients were excluded. The remaining 981 patients were divided into two groups: patients undergoing screening colonoscopy (n=428; 43.6%); patients with other indications including surveillance and diagnosis (n=553; 56.4%). RESULTS: Adenoma detection rate of the group with other indications (50.6%) was higher than that of the screening group (44.6%; P=0.03). In regarding pSPDR, there was no difference between pSPDR in both groups (screening 13.6%; other indications 13.7%; P=0.931). There was no significant difference in the mean age (P=0.259) or in the proportion of men and women (P=0.211) between both groups. CONCLUSION: Proximal serrated polyp detection rate showed an insignificant difference between groups with different indications and could be used as a complementary indicator to adenoma detection rate. This could benefit colonoscopists with low colonoscopy volume or low volume of screening colonoscopies.

Mo1557 Physician's Fatigue Influences on Adenoma Detection Rate and Polyp Detection Rate

2011 ◽  
Vol 73 (4) ◽  
pp. AB385-AB386
Author(s):  
Dongil Park ◽  
Young-Ho Kim ◽  
Suck-Ho Lee ◽  
Chang Kyun Lee ◽  
Chang Soo Eun ◽  
...  
Keyword(s):  
Detection Rate ◽  
Adenoma Detection Rate ◽  
Polyp Detection ◽  
Polyp Detection Rate ◽  
Adenoma Detection

scholarly journals Gaze patterns hold key to unlocking successful search strategies and increasing polyp detection rate in colonoscopy

Endoscopy ◽  
2018 ◽  
Vol 50 (07) ◽  
pp. 701-707 ◽  
Author(s):  
Mariam Lami ◽  
Harsimrat Singh ◽  
James Dilley ◽  
Hajra Ashraf ◽  
Matthew Edmondon ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Detection Rate ◽  
Surrogate Marker ◽  
Polyp Detection ◽  
Gaze Patterns ◽  
Successful Search ◽  
Polyp Detection Rate ◽  
Adenoma Detection ◽  
Important Quality ◽  
Visual Gaze

Abstract Background The adenoma detection rate (ADR) is an important quality indicator in colonoscopy. The aim of this study was to evaluate the changes in visual gaze patterns (VGPs) with increasing polyp detection rate (PDR), a surrogate marker of ADR. Methods 18 endoscopists participated in the study. VGPs were measured using eye-tracking technology during the withdrawal phase of colonoscopy. VGPs were characterized using two analyses – screen and anatomy. Eye-tracking parameters were used to characterize performance, which was further substantiated using hidden Markov model (HMM) analysis. Results Subjects with higher PDRs spent more time viewing the outer ring of the 3 × 3 grid for both analyses (screen-based: r = 0.56, P = 0.02; anatomy: r = 0.62, P < 0.01). Fixation distribution to the “bottom U” of the screen in screen-based analysis was positively correlated with PDR (r = 0.62, P = 0.01). HMM demarcated the VGPs into three PDR groups. Conclusion This study defined distinct VGPs that are associated with expert behavior. These data may allow introduction of visual gaze training within structured training programs, and have implications for adoption in higher-level assessment.

Sign in / Sign up

Export Citation Format

Share Document