scholarly journals Factors limiting the endoscopic submucosal dissection in colorectal tumors

2021 ◽  
Vol 20 (2) ◽  
pp. 50-56
Author(s):  
A. A. Likutov ◽  
D. A. Mtvralashvili ◽  
M. A. Nagudov ◽  
O. M. Yugai ◽  
Yu. E. Vaganov ◽  
...  
Keyword(s):  
Risk Factors ◽  
Endoscopic Submucosal Dissection ◽  
Significant Risk ◽  
Resection Margins ◽  
R0 Resection ◽  
Vascular Pattern ◽  
Colorectal Tumors ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Median Size

Aim: to identify the risk factors for conversion of endoscopic submucosal dissection to abdominal surgery.Patients and methods: the prospective cohort study included 405 patients: 166 (40.9%) males and 239 (59.1%) females. The median age was 66 (59; 72) years old; the patients underwent endoscopic submucosal dissection of colorectal epithelial neoplasms.Results: the median size of the removed neoplasms was 3.0 (2.4; 4) cm, tumor was removed en bloc in 324/363 (89.2%) cases; and R0 resection margins were detected in 218/324 (67.3%) cases. Significant risk factors for conversion were: the tumor size ≥ 3.2 cm (OR 2.9, 95% CI 1.2–7.1, p = 0.017), lifting ≤ 3 mm (OR 41, 95% CI 15–105, p = 0.000002) and the tumor vascular pattern IIIa according Sano’s capillary pattern classification (OR 4.0, 95% CI 1.3–11.9, p = 0.013).Conclusion: endoscopic submucosal dissection is a safe way to remove colorectal neoplasms. However, the presence of conversion risk factors can influence the outcome of endoscopic treatment.

scholarly journals Endoscopic submucosal dissection in management of colorectal tumors near or involving a diverticulum: a retrospective case series

2019 ◽  
Vol 07 (05) ◽  
pp. E664-E671 ◽  
Author(s):  
Victoria Jimenez-Garcia ◽  
Masayoshi Yamada ◽  
Hiroaki Ikematsu ◽  
Hiroyuki Takamaru ◽  
Seiichiro Abe ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Case Series ◽  
Clinicopathological Characteristics ◽  
R0 Resection ◽  
Incomplete Resection ◽  
Colorectal Tumors ◽  
Resection Rate ◽  
Retrospective Case ◽  
En Bloc ◽  
Submucosal Dissection

Abstract Background and study aims Surgery is the standard treatment for colon tumors associated with diverticulum. Use of endoscopic submucosal dissection (ESD) to treat such tumors is controversial. The aim of this study was to assess the safety and feasibility of ESD in treating superficial colorectal tumors situated near or involving diverticulum. Patients and methods Consecutive patients from two referral centers who had colorectal tumors near or involving diverticulum treated by ESD were retrospectively studied. Clinicopathological characteristics and clinical outcomes were analyzed. Results Of the 12 patients studied, six had tumors near diverticulum and six had tumors involving diverticulum. The overall en-bloc R0 resection rate, median tumor size and procedure time were 67 %, 26.5 mm (range, 15 – 80 mm) and 110 minutes (range, 50 – 220 minutes), respectively. For tumors near diverticulum group, the en-bloc R0 resection rate was 100 % and no adverse events (AEs) or residual/recurrent tumors were observed. In contrast, for intradiverticular tumors group, the en-bloc R0 resection rate was low at 33 %, and one AE (perforation) was observed. The diverticula were ≥ 6 mm in diameter in the patients with incomplete resection. However, all but one diverticulum was unrecognized before ESD. Two residual tumors were detected at the 12-month surveillance and one required surgery. Conclusions This case series indicates that ESD is safe and feasible for treating colorectal tumors near a diverticulum and might be feasible for tumors involving a diverticulum smaller than 6 mm. Selection for smaller diverticulum size may contribute to higher en-bloc R0 resection rates.

scholarly journals Palisade technique as an effective endoscopic submucosal dissection tool for large colorectal tumors

2021 ◽  
Vol 09 (02) ◽  
pp. E210-E215
Author(s):  
Yuichiro Suzuki ◽  
Ken Ohata ◽  
Eiji Sakai ◽  
Ryoju Negishi ◽  
Maiko Takita ◽  
...  
Keyword(s):  
Local Recurrence ◽  
Endoscopic Submucosal Dissection ◽  
Standard Treatment ◽  
R0 Resection ◽  
Colorectal Tumors ◽  
Resection Rate ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Safe Technique ◽  
Observation Period

Abstract Background and study aims Endoscopic submucosal dissection (ESD) has become the standard treatment for colorectal ESD, but large colorectal tumors remain difficult to remove. We developed a new method, called the palisade technique, by modifying the multiple tunneling technique. In this method, a palisade of submucosal tissue is left beneath the tumor to anchor a dissected specimen, maintaining effective submucosal traction. Patients and methods The study included 11 patients with large colorectal tumors that were over half the circumference of the colorectal lumen which were treated using the palisade technique from August 2017 to October 2019. Overall resection outcomes were assessed. Results All 11 lesions were removed en bloc. The R0 resection rate was 45.6 % because of marginal burning of the specimen, but no local recurrence was found after a median observation period of 31 months. The median submucosal dissection time (SDT) and submucosal dissection speed (SDS) were 170 minutes and 23.1 mm2/min, respectively. One case of post-ESD hemorrhage was successfully managed endoscopically, and two cases of post-colorectal ESD coagulation syndrome were managed conservatively. Conclusion The palisade technique can be an effective and safe technique for treating large colorectal tumors that extend over half the luminal circumference.

scholarly journals Acceptability of endoscopic submucosal dissection for sessile serrated lesions: comparison with non-sessile serrated lesions

2020 ◽  
Vol 08 (12) ◽  
pp. E1832-E1839
Author(s):  
Yuichiro Kuroki ◽  
Toshiyuki Endo ◽  
Kenta Iwahashi ◽  
Naoki Miyao ◽  
Reika Suzuki ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Postoperative Bleeding ◽  
En Bloc Resection ◽  
Tumor Location ◽  
Proximal Colon ◽  
R0 Resection ◽  
Resection Rate ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Serrated Lesions

Abstract Background and study aims Sessile serrated lesions (SSL) are major precursor lesions of serrated pathway cancers, and appropriate treatment may prevent interval colorectal cancer. Studies have reported the outcomes of endoscopic mucosal resection (EMR) for SSL; however, there are insufficient reports on endoscopic submucosal dissection (ESD). We examined the characteristics and outcomes of SSL and compared them to those of non-SSL in ESD. Patients and methods We reviewed 370 consecutive cases in 322 patients who underwent colorectal ESD between January 2016 and March 2020 at our hospital. There were 267 0-IIa lesions that were stratified into 41 SSL and 226 non-SSL (intramucosal cancer, adenoma) cases. We used propensity matching to adjust for the variances in the factors affecting treatment between the SSL and non-SSL groups. Results In the baseline cases, young women and proximal colon tumor location were significantly more common in the SSL group. There were no statistically significant differences between the SSL and non-SSL groups in terms of en bloc resection rate (97.6 % vs. 99.6 %; P = 0.28), R0 resection rate (92.7 % vs. 93.4 %; P = 0.74), perforation (0 % vs. 0.9 %; P > 0.99), and postoperative bleeding (2.4 % vs. 1.8 %; P = 0.56). Thirty-eight pairs were matched using propensity score, and the median dissection speed (12 vs. 7.7 cm2/h; P = 0.0095) was significantly faster in the SSL than in the non-SSL group. Conclusions ESD for SSL was safely performed, and SSL was smoother to remove than non-SSL. ESD might be an acceptable endoscopic treatment option for SSL.

scholarly journals Colorectal Endoscopic Submucosal Dissection in a Western Center: Analysis of Outcomes and Safety Profile

2021 ◽  
pp. 1-9
Author(s):  
João Santos-Antunes ◽  
Margarida Marques ◽  
Rui Morais ◽  
Fátima Carneiro ◽  
Guilherme Macedo
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Safety Profile ◽  
En Bloc Resection ◽  
R0 Resection ◽  
Hybrid Technique ◽  
Resection Rate ◽  
En Bloc ◽  
Delayed Bleeding ◽  
Submucosal Dissection ◽  
Gastrointestinal Lesions

<b><i>Introduction:</i></b> Endoscopic submucosal dissection (ESD) is a well-established endoscopic technique for the treatment of gastrointestinal lesions. Colorectal ESD outcomes are less reported in the Western literature, and Portuguese data are still very scarce. Our aim was to describe our experience on colorectal ESD regarding its outcomes and safety profile. <b><i>Methods:</i></b> We conducted a retrospective evaluation of recorded data on ESDs performed between 2015 and 2020. Only ESDs performed on epithelial neoplastic lesions were selected for further analysis. <b><i>Results:</i></b> Of a total of 167 colorectal ESDs, 153 were included. Technical success was achieved in 147 procedures (96%). The lesions were located in the colon (<i>n</i> = 24) and rectum (<i>n</i> = 123). The en bloc resection rate was 92% and 97%, the R0 resection rate was 83% and 82%, and the curative resection rate was 79% and 78% for the colon and the rectum, respectively. The need for a hybrid technique was the only risk factor for piecemeal or R1 resection. We report a perforation rate of 3.4% and a 4.1% rate of delayed bleeding; all the adverse events were manageable endoscopically, without the need of blood transfusions or surgery. Most of the lesions were laterally spreading tumours of the granular mixed type (70%), and 20% of the lesions were malignant (12% submucosal and 8% intramucosal cancer). <b><i>Conclusion:</i></b> Our series on colorectal ESD reports a very good efficacy and safety profile. This technique can be applied by endoscopists experienced in ESD.

scholarly journals Endoscopic submucosal dissection of 301 large colorectal neoplasias: outcome and learning curve from a specialized center in Europe

2018 ◽  
Vol 06 (11) ◽  
pp. E1340-E1348 ◽  
Author(s):  
Carl-Fredrik Rönnow ◽  
Noriya Uedo ◽  
Ervin Toth ◽  
Henrik Thorlacius
Keyword(s):  
Learning Curve ◽  
Endoscopic Submucosal Dissection ◽  
Colorectal Neoplasia ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
High Rate ◽  
R0 Resection ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Immediate Bleeding

Abstract Background and study aims Endoscopic submucosal dissection (ESD) allows en bloc resection of large colorectal lesions but ESD experience is limited outside Asia. This study evaluated implementation of ESD in the treatment of colorectal neoplasia in a Western center. Patients and methods Three hundred and one cases of colorectal ESD (173 rectal and 128 colonic lesions) were retrospectively evaluated in terms of outcome, learning curve and complications. Results Median size was 4 cm (range 1 – 12.5). En bloc resection was achieved in 241 cases amounting to an en bloc resection rate of 80 %. R0 resection was accomplished in 207 cases (69 %), RX and R1 were attained in 83 (27 %) and 11 (4 %) cases, respectively. Median time was 98 min (range 10 – 588) and median proficiency was 7.2 cm2/h. Complications occurred in 24 patients (8 %) divided into 12 immediate perforations, five delayed perforations, one immediate bleeding and six delayed bleedings. Six patients (2 %), all with proximal lesions, had emergency surgery. Two hundred and four patients were followed up endoscopically and median follow-up time was 13 months (range 3 – 53) revealing seven recurrences (3 %). En bloc rate improved gradually from 60 % during the first period to 98 % during the last period. ESD proficiency significantly improved between the first study period (3.6 cm2/h) and the last study period (10.8 cm2/h). Conclusions This study represents the largest material on colorectal ESD in the west and shows that colorectal ESD can be implemented in clinical routine in western countries after appropriate training and achieve a high rate of en bloc and R0 resection with a concomitant low incidence of complications. ESD of proximal colonic lesions should be attempted with caution during the learning curve because of higher risk of complications.

scholarly journals Clinical Practice of Endoscopic Submucosal Dissection for Early Colorectal Neoplasms by a Colonoscopist with Limited Gastric Experience

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Wen-Hsin Hsu ◽  
Meng-Shun Sun ◽  
Hoi-Wan Lo ◽  
Ching-Yang Tsai ◽  
Yu-Jou Tsai
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Colorectal Neoplasms ◽  
R0 Resection ◽  
En Bloc ◽  
Delayed Bleeding ◽  
Submucosal Dissection ◽  
Limited Experience ◽  
Mean Size ◽  
Delayed Perforation ◽  
The Mean

Objectives. Endoscopic submucosal dissection (ESD) for early colorectal neoplasms is regarded as a difficult technique and should commence after receiving the experiences of ESD in the stomach. The implementation of colorectal ESD in countries where early gastric cancer is uncommon might therefore be difficult. The aim is to delineate the feasibility and the learning curve of colorectal ESD performed by a colonoscopist with limited experience of gastric ESD.Methods. The first fifty cases of colorectal ESD, which were performed by a single colonoscopist between July 2010 and April 2013, were enrolled.Results. The mean of age was 64 (±9.204) years with mean size of neoplasm at 33 (±12.63) mm. The mean of procedure time was 70.5 (±48.9) min. The rates ofen blocresection, R0 resection, and curative resection were 86%, 86%, and 82%, respectively. Three patients had immediate perforation, but no patient developed delayed perforation or delayed bleeding.Conclusion. Our result disclosed that it is feasible for colorectal ESD to be performed by a colonoscopist with little experience of gastric ESD through satisfactory training and adequate case selection.

scholarly journals Preoperative endoscopic predictors of severe submucosal fibrosis in colorectal tumors undergoing endoscopic submucosal dissection

2019 ◽  
Vol 07 (04) ◽  
pp. E421-E430 ◽  
Author(s):  
Uayporn Kaosombatwattana ◽  
Takeshi Yamamura ◽  
Julajak Limsrivilai ◽  
Masanao Nakamura ◽  
Somchai Leelakusolvong ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Curative Resection ◽  
Significant Risk ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Resection Rate ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Submucosal Fibrosis ◽  
Severe Fibrosis

Abstract Background and study aims Endoscopic submucosal dissection (ESD) enables en bloc removal of colorectal neoplasms regardless of size. Submucosal fibrosis is a significant factor for technical difficulty and poor outcomes. We assessed the predictive factors for severe submucosal fibrosis and the ESD outcomes. Patients and methods Patients undergoing ESD from January 2006 to September 2017 were retrospectively reviewed. The degree of submucosal fibrosis was classified into three types: no fibrosis (F0), mild fibrosis (F1), and severe fibrosis (F2). F0 and F1 cases were grouped as non-severe fibrosis for comparison with the severe fibrosis group. Predictors of severe submucosal fibrosis and ESD outcomes were evaluated. Results ESD was performed in 524 lesions (60 % male; mean age, 67.8 years). Eighty lesions with severe fibrosis (15.3 %) were observed. The overall en bloc resection rate and curative resection rate were 94.3 % and 77.7 %, respectively. Rates of en bloc resection (91.2 % vs. 94.8 %, P = 0.2) and perforation (7.5 % vs. 5.6 %, P = 0.45) were no different between severe fibrosis and non-severe fibrosis groups. However, incidences of non-curative resection and low resection speed were significantly higher in the severe fibrosis group. Among protruding lesions, tumor height and volume were significantly greater in the severe counterparts. A diameter ≥ 40 mm, endoscopic finding of the tumor beyond fold, and fold convergence were independent risk factors for severe fibrosis. Conclusions Severe submucosal fibrosis is a significant risk factor for non-curative resection and a long procedural time. Tumor size and morphology might help to predict the severity of fibrosis.

scholarly journals Risk Factors for Postoperative Bleeding in Endoscopic Submucosal Dissection of Colorectal Tumors

Oncology ◽  
2017 ◽  
Vol 93 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Kazuki Okamoto ◽  
Tomohiro Watanabe ◽  
Yoriaki Komeda ◽  
Tatsuya Kono ◽  
Kouta Takashima ◽  
...  
Keyword(s):  
Risk Factors ◽  
Endoscopic Submucosal Dissection ◽  
Postoperative Bleeding ◽  
Colorectal Tumors ◽  
Submucosal Dissection

scholarly journals Usefulness of a multifunctional snare designed for colorectal hybrid endoscopic submucosal dissection (with video)

2018 ◽  
Vol 06 (02) ◽  
pp. E249-E253 ◽  
Author(s):  
Ken Ohata ◽  
Takashi Muramoto ◽  
Yohei Minato ◽  
Hideyuki Chiba ◽  
Eiji Sakai ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Therapeutic Option ◽  
Cost Effective ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Colorectal Tumors ◽  
En Bloc ◽  
Delayed Bleeding ◽  
Submucosal Dissection ◽  
Needle Knife

AbstractSince colorectal endoscopic submucosal dissection (ESD) remains technically difficult, hybrid ESD was developed as an alternative therapeutic option to achieve en bloc resection of relatively large lesions. In this feasibility study, we evaluated the safety and efficacy of hybrid colorectal ESD using a newly developed multifunctional snare. From June to August 2016, we prospectively enrolled 10 consecutive patients with non-pedunculated intramucosal colorectal tumors 20 – 30 mm in diameter. All of the hybrid ESD steps were performed using the “SOUTEN” snare. The knob-shaped tip attached to the loop top helps to stabilize the needle-knife, making it less likely to slip during circumferential incision and enables partial submucosal dissection. All of the lesions were curatively resected by hybrid ESD, with a short mean procedure time (16.1 ± 4.8 minutes). The mean diameters of the resected specimens and tumors were 30.5 ± 4.9 and 26.0 ± 3.5 mm, respectively. No perforations occurred, while delayed bleeding occurred in 1 patient. In conclusion, hybrid ESD using a multifunctional snare enables easy, safe, and cost-effective resection of relatively large colorectal tumors to be achieved.Study registration: UMIN000022545

scholarly journals Risk Factors for Technical Difficulty of Endoscopic Submucosal Dissection in Colorectal Tumors: A Case Series and Meta-Analysis

2020 ◽  
Author(s):  
Yan Gao ◽  
Wei Jiang ◽  
Hui-Hong Zhai ◽  
Jianing Xu ◽  
Shanshan Wu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Endoscopic Submucosal Dissection ◽  
Meta Analysis ◽  
Dentate Line ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Submucosal Fibrosis ◽  
Lifting Sign

Abstract Background and Aims: Endoscopic submucosal dissection has become widely accepted as an efficient and well-established option for colorectal neoplastic lesions (CRNs). However, there are still some barriers for endoscopists that hinder the successful ESD. The current study was to evaluate risk factors for the failure of en-bloc resection in the colorectal endoscopic submucosal dissection (ESD).Methods: A retrospective chart review was performed from patients who underwent ESD for colorectal neoplasms (CRNs) between January 2015 and April 2017. The demographics and colonoscopic reports were analyzed. A meta-analysis was conducted for the risk factors for the failure of en-bloc or R0 resection. Results: 253 ESD cases were completed in en-bloc resection. Ulcerative colitis, previous abdominal surgeries, lesions on the Bauhin’s valve/ dentate line, non-lifting sign and submucosal fibrosis were associated with the failure of en-bloc resection (P<0.05). Meta-analysis showed that laterally spreading tumors, tumor larger than 40mm, Bauhin’s valve/dentate line, flexure, non-lifting sign, and submucosal fibrosis were the factors for the failure of en bloc or R0 resection. The rates of perforation were obviously higher in N-EBR groups compared to EBR groups. No significant results can be observed on the local recurrence based on these studies. Conclusions: Preoperative factors such as laterally spreading tumors, tumor larger than 40mm, Bauhin’s valve/dentate line, flexure and intraoperative factors such as non-lifting sign, submucosal fibrosis should be put more focus to reach better outcomes in CRNs patients.

Sign in / Sign up

Export Citation Format

Share Document