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Gastrointestinal Endoscopy Apr 2021
Topics: Cholangiopancreatography, Endoscopic Retrograde; Disinfection; Duodenoscopes; Equipment Contamination; Humans; Prospective Studies
PubMed: 33741093
DOI: 10.1016/j.gie.2020.09.014 -
Endoscopy Feb 2022The risk of exogenous infections from endoscopic procedures is often cited as almost negligible (1 infection in 1.8 million procedures); however, this risk is based on...
BACKGROUND
The risk of exogenous infections from endoscopic procedures is often cited as almost negligible (1 infection in 1.8 million procedures); however, this risk is based on older literature and does not seem to match the number of infectious outbreaks due to contaminated duodenoscopes reported after endoscopic retrograde cholangiopancreatography (ERCP). Using Dutch data, we aimed to estimate the minimum risk of duodenoscope-associated infection (DAI) and colonization (DAC) in patients undergoing ERCP.
METHODS
A systematic literature search identified all DAI outbreaks in the Netherlands reported between 2008 and 2019. Included cases were confirmed by molecular matching of patient and duodenoscope cultures. Risk ratios were calculated based on the total number of ERCPs performed during the study period.
RESULTS
Three outbreaks were reported and published between 2008 and 2018, including 21 confirmed DAI cases and 52 confirmed DAC cases. The estimated number of ERCPs performed during the same period was 181 209-227 006. The calculated minimum estimated DAI risk was approximately 0.01 % and the minimum estimated DAC risk was 0.023 %-0.029 %.
CONCLUSIONS
The estimated risk of DAI in Dutch ERCP practice was at least 180 times higher than previously published risk estimates. The actual risk is likely to be (much) higher due to underreporting of infections caused by multidrug-resistant organisms and sensitive bacteria. Greater awareness by healthcare personnel involved in endoscopy and endoscope cleaning is required, as well as innovative technical solutions to contain and ultimately eliminate DAIs.
Topics: Cholangiopancreatography, Endoscopic Retrograde; Disease Outbreaks; Duodenoscopes; Equipment Contamination; Humans; Netherlands
PubMed: 33915575
DOI: 10.1055/a-1467-6294 -
Gastrointestinal Endoscopy Sep 2020Contaminated duodenoscopes and linear echoendoscopes (DLEs) pose a risk for infectious outbreaks. To identify DLEs and reprocessing risk factors, we combined the data...
BACKGROUND AND AIMS
Contaminated duodenoscopes and linear echoendoscopes (DLEs) pose a risk for infectious outbreaks. To identify DLEs and reprocessing risk factors, we combined the data from the previously published nationwide cross-sectional PROCESS 1 study (Prevalence of contamination of complex endoscopes in the Netherlands) with the follow-up PROCESS 2 study.
METHODS
We invited all 74 Dutch DLE centers to sample ≥2 duodenoscopes during PROCESS 1, and all duodenoscopes as well as linear echoendoscopes during PROCESS 2. The studies took place 1 year after another. Local staff sampled each DLE at ≤6 sites according to uniform methods explained by online videos. We used 2 contamination definitions: (1) any microorganism with ≥20 colony-forming units (CFU)/20 mL (AM20) and (2) presence of microorganisms with GI or oral origin, independent of CFU count (MGOs). We assessed the factors of age and usage by performing an analysis of pooled data of both PROCESS studies; additional factors including reprocessing characteristics were only recorded in PROCESS 2.
RESULTS
Ninety-seven percent of all Dutch centers (72 of 74; PROCESS 1, 66; PROCESS 2, 61) participated in one of the studies, sampling 309 duodenoscopes and 64 linear echoendoscopes. In total, 54 (17%) duodenoscopes and 8 (13%) linear echoendoscopes were contaminated according to the AM20 definition. MGOs were detected on 47 (15%) duodenoscopes and 9 (14%) linear echoendoscopes. Contamination was not age or usage dependent (all P values ≥.27) and was not shown to differ between the reprocessing characteristics (all P values ≥.01).
CONCLUSIONS
In these nationwide studies, we found that DLE contamination was independent of age and usage. These results suggest that old and heavily used DLEs, if maintained correctly, have a similar risk for contamination as new DLEs. The prevalence of MGO contamination of ∼15% was similarly high for duodenoscopes as for linear echoendoscopes, rendering patients undergoing ERCP and EUS at risk for transmission of microorganisms.
Topics: Cross Infection; Cross-Sectional Studies; Disinfection; Duodenoscopes; Equipment Contamination; Humans; Netherlands; Risk Assessment
PubMed: 32502549
DOI: 10.1016/j.gie.2020.05.030 -
Experimental and Therapeutic Medicine Jan 2021The study aimed to investigate the clinical efficacy of duodenoscopy combined with laparoscopy in the treatment of patients with severe acute pancreatitis (SAP) and...
Clinical efficacy of duodenoscopy combined with laparoscopy in the treatment of patients with severe acute pancreatitis and pancreatic pseudocyst, and the effects on IL-6 and CRP.
The study aimed to investigate the clinical efficacy of duodenoscopy combined with laparoscopy in the treatment of patients with severe acute pancreatitis (SAP) and pancreatic pseudocyst (PP), and its effects on serum inflammatory factors. Altogether 94 patients complicated with SAP and PP who were admitted to Weifang People's Hospital (Weifang, China) from September 2015 to December 2018 were included. Based on the different operation methods, 49 patients who underwent traditional laparotomy under laparoscopic surgery were included in group A, and 45 patients who underwent duodenoscopy and laparoscopy under duodenoscope to treat the drainage of nipple and pancreatic pseudocysts were included in group B. The expression levels of related serum indexes and serum stress indexes before and at 48 h after surgery, the postoperative nausea, vomiting and abdominal pain scores, as well as the clinical efficacy, perioperative related indexes, recovery and complications were compared between the two groups. The prognostic factors in both groups were assessed via Logistic univariate and multivariate analyses. C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-β (IL-β), endotoxin and nuclear factor κB (NF-κB) were significantly lower in group B than those in group A (P<0.001). Upregulating cortisol and norepinephrine in group B was lower than that in group A (P<0.001). The total effective rate in group B was higher than that in group A (P<0.05). The perioperative related indexes, recovery, and postoperative complications in group B were better than those in group A (P<0.05). Scores of abdominal pain, nausea and vomiting in group B were markedly lower than those in group A (P<0.001). Multivariate Logistic regression analysis showed that CRP, TNF-α, IL-6, IL-β and surgical methods were independent risk factors for the prognosis of patients with SAP and PP. In conclusion, the combined treatment with duodenoscopy and laparoscopic surgery has little inflammatory and stress reaction, and it is highly safe, worthy to be popularized.
PubMed: 33273983
DOI: 10.3892/etm.2020.9487 -
Endoscopy Sep 2020
Topics: Disinfection; Duodenoscopes; Equipment Contamination; Humans
PubMed: 32846437
DOI: 10.1055/a-1202-1400 -
Gastrointestinal Endoscopy Feb 2020Multidrug-resistant infectious outbreaks associated with duodenoscope reuse have been documented internationally. A single-use endoscope could eliminate exogenous... (Comparative Study)
Comparative Study
BACKGROUND AND AIMS
Multidrug-resistant infectious outbreaks associated with duodenoscope reuse have been documented internationally. A single-use endoscope could eliminate exogenous patient-to-patient infection associated with ERCP.
METHODS
We conducted a comparative bench simulation study of a new single-use and 3 models of reusable duodenoscopes on a synthetic anatomic bench model. Four ERCP tasks were performed: guidewire locking (single-use and 1 reusable duodenoscope only), plastic stent placement and removal, metal stent placement and removal, and basket sweeping. The study schedule included block randomization by 4 duodenoscopes, 4 tasks, and 2 anatomic model ERCP stations. Ability to complete tasks, task completion times, and subjective ratings of overall performance, navigation/pushability, tip control, and image quality on a scale of 1 (worst) to 10 (best) were compared among duodenoscopes.
RESULTS
All 4 ERCP tasks (total 14 subtasks) were completed by 6 expert endoscopists using all 4 duodenoscopes, with similar task completion times (median, 1.5-8.0 minutes per task) and overall performance ratings by task (median, 8.0-10.0). Navigation/pushability ratings were lower for the single-use duodenoscope than for the 3 reusable duodenoscopes (median, 8.0, 10.0, 9.0, and 9.0, respectively; P < .01). Tip control ratings were similar among all the duodenoscopes (median, 9.0-10.0; P = .77). Image quality ratings were lower for 1 reusable duodenoscope compared with the single-use and other 2 reusable duodenoscopes (median, 8.0, 9.0, 9.0, and 9.0, respectively; P < .01).
CONCLUSIONS
A new single-use duodenoscope was used to simulate 4 ERCP tasks in an anatomic model, with performance ratings and completion times comparable with 3 models of reusable duodenoscopes.
Topics: Cholangiopancreatography, Endoscopic Retrograde; Cross Infection; Disposable Equipment; Duodenoscopes; Equipment Reuse; Humans; Models, Anatomic; Operative Time; Random Allocation
PubMed: 31679738
DOI: 10.1016/j.gie.2019.08.032 -
Endoscopy May 2021The study aimed to construct an intelligent difficulty scoring and assistance system (DSAS) for endoscopic retrograde cholangiopancreatography (ERCP) treatment of common...
BACKGROUND
The study aimed to construct an intelligent difficulty scoring and assistance system (DSAS) for endoscopic retrograde cholangiopancreatography (ERCP) treatment of common bile duct (CBD) stones.
METHODS
1954 cholangiograms were collected from three hospitals for training and testing the DSAS. The D-LinkNet34 and U-Net were adopted to segment the CBD, stones, and duodenoscope. Based on the segmentation results, the stone size, distal CBD diameter, distal CBD arm, and distal CBD angulation were estimated. The performance of segmentation and estimation was assessed by mean intersection over union (mIoU) and average relative error. A technical difficulty scoring scale, which was used for assessing the technical difficulty of CBD stone removal, was developed and validated. We also analyzed the relationship between scores evaluated by the DSAS and clinical indicators including stone clearance rate and need for endoscopic papillary large-balloon dilation (EPLBD) and lithotripsy.
RESULTS
The mIoU values of the stone, CBD, and duodenoscope segmentation were 68.35 %, 86.42 %, and 95.85 %, respectively. The estimation performance of the DSAS was superior to nonexpert endoscopists. In addition, the technical difficulty scoring performance of the DSAS was more consistent with expert endoscopists than two nonexpert endoscopists. A DSAS assessment score ≥ 2 was correlated with lower stone clearance rates and more frequent EPLBD.
CONCLUSIONS
An intelligent DSAS based on deep learning was developed. The DSAS could assist endoscopists by automatically scoring the technical difficulty of CBD stone extraction, and guiding the choice of therapeutic approach and appropriate accessories during ERCP.
Topics: Cholangiopancreatography, Endoscopic Retrograde; Common Bile Duct; Deep Learning; Gallstones; Humans; Sphincterotomy, Endoscopic; Treatment Outcome
PubMed: 32838430
DOI: 10.1055/a-1244-5698 -
Surgical Endoscopy Aug 2021Endoscopic retrograde cholangiopancreatography (ERCP) in patients with Billroth II gastrectomy is a difficult procedure. Although different endoscopes are used in these...
A comparative study of side-viewing duodenoscope and forward-viewing gastroscope to perform endoscopic retrograde cholangiopancreatography in patients with Billroth II gastrectomy.
BACKGROUND/AIM
Endoscopic retrograde cholangiopancreatography (ERCP) in patients with Billroth II gastrectomy is a difficult procedure. Although different endoscopes are used in these patients, comparative studies are limited. The aim of this study was to assess the efficacy and the safety of the forward-viewing gastroscope compared with the side-viewing duodenoscope.
MATERIALS AND METHODS
This study was conducted on 75 Billroth II gastrectomy patients who underwent ERCP by the same experienced endoscopist. Procedures were performed using side-viewing duodenoscope in the first 41 patients and forward-viewing gastroscope in the subsequent 34 patients. The success and complication rates of ERCP were compared between the two groups.
RESULTS
Afferent loop intubation was achieved in 39 patients (95.1%) in the side-viewing duodenoscope group and in 34 patients (100%) in the forward-viewing gastroscope group (P = 0.49). The rates of reaching the papilla was 70.7% (n = 29) and 91.1% (n = 31), respectively (P = 0.06). Cannulation success rate after reaching the papilla was 100% in the side-viewing duodenoscope group and 90.3% in the forward-viewing gastroscope group. In the side-viewing duodenoscope group, 11 patients underwent sphincterotomy (EST), 14 patients underwent both EST and endoscopic papillary balloon dilatation (EPBD), and 4 patients underwent only EPBD. All but one patients in the forward-viewing gastroscope group underwent EPBD without EST. The technical and the clinical success rate did not statistically differ between the groups (70.7% vs. 82.3%, 68.3% vs. 79.4%, respectively). Adverse events included jejunal perforation in one patient (2.4%) in the side-viewing duodenoscope group, and pancreatitis in one patient (2.9%) in the forward-viewing gastroscope group (P > 0.05).
CONCLUSION
This study indicates that forward-viewing gastroscope is as effective as side-viewing duodenoscope for ERCP in patients with Billroth II gastrectomy. Furthermore, EPBD without prior EST appears to be a safe and effective procedure in these patients.
Topics: Cholangiopancreatography, Endoscopic Retrograde; Duodenoscopes; Gastrectomy; Gastroenterostomy; Gastroscopes; Humans
PubMed: 32860133
DOI: 10.1007/s00464-020-07904-x -
BMC Gastroenterology Apr 2023Endoscopic retrograde cholangiography (ERC) possesses a translocation risk of microbes to the biliary system. We studied bile contamination during ERC and its impact on...
BACKGROUND
Endoscopic retrograde cholangiography (ERC) possesses a translocation risk of microbes to the biliary system. We studied bile contamination during ERC and its impact on patients' outcome in a real-life-situation.
METHODS
Ninety-nine ERCs were analyzed and microbial samples were taken from the throat before and from bile during ERC and from irrigation fluid of the duodenoscope before and after ERC.
RESULTS
91.2% of cholangitis patients had detectable microbes in the bile (sensitivity 91%), but the same was true for 86.2% in the non-cholangitis group. Bacteroides fragilis (p=0.015) was significantly associated with cholangitis. In 41.7% of ERCs with contaminated endoscopes these microbes were found in the bile after the procedure. Analysis of duodenoscopes' irrigation liquid after ERC matched the microbial bile analysis of these patients in 78.8%. Identical microbial species were in throat and in bile samples of the same ERC in 33% of all cases and in 45% in the non-cholangitis group. Transmission of microbes to the biliary tract did not result in more frequent cholangitis, longer hospital stays, or worse outcome.
CONCLUSIONS
During ERC bile samples are regularly contaminated with microbes of the oral cavity but it did not affect clinical outcome.
Topics: Humans; Cholangiopancreatography, Endoscopic Retrograde; Biliary Tract; Cholangiography; Biliary Tract Surgical Procedures; Cholangitis; Microbiota
PubMed: 37013522
DOI: 10.1186/s12876-023-02721-7 -
VideoGIE : An Official Video Journal of... Dec 2020
PubMed: 33024906
DOI: 10.1016/j.vgie.2020.08.011