Lumen-apposing stents versus plastic stents in the management of pancreatic pseudocysts: a large, comparative, international, multicenter study

Endoscopy ◽  
2018 ◽  
Vol 51 (11) ◽  
pp. 1035-1043 ◽  
Author(s):  
Juliana Yang ◽  
Yen-I Chen ◽  
Shai Friedland ◽  
Ian Holmes ◽  
Christopher Paiji ◽  
...  
Keyword(s):  
Adverse Events ◽  
Clinical Success ◽  
Length Of Hospital Stay ◽  
Plastic Stents ◽  
Pancreatic Pseudocysts ◽  
Technical Success ◽  
Pancreatic Fluid ◽  
International Multicenter Study ◽  
Fluid Collections

Abstract Background Larger caliber lumen-apposing stents (LAMSs) have been increasingly used in the management of pancreatic fluid collections, specifically when solid debris is present; however, their advantages over smaller caliber plastic stents in the management of pancreatic pseudocysts are unclear. The aim of this study was to investigate the safety and efficacy of LAMS specifically in the management of pancreatic pseudocysts compared with double-pigtail plastic stents (DPPSs). Methods We performed a multicenter, international, retrospective study between January 2012 and August 2016. A total of 205 patients with a diagnosis of pancreatic pseudocysts were included, 80 patients received LAMSs and 125 received DPPSs. Measured outcomes included clinical success, technical success, adverse events, stent dysfunction, pancreatic pseudocyst recurrence, and need for surgery. Results Technical success was similar between the LAMS and the DPPS groups (97.5 % vs. 99.2 %; P = 0.32). Clinical success was higher for LAMSs than for DPPSs (96.3 % vs. 87.2 %; P = 0.03). While the need for surgery was similar between the two groups (1.3 % vs. 4.9 %, respectively; P = 0.17), the use of percutaneous drainage was significantly lower in the LAMS group (1.3 % vs. 8.8 %; P = 0.03). At 6-month follow-up, the recurrence rate was similar between the groups (6.7 % vs 18.8 %, respectively; P = 0.12). The rate of adverse events was significantly higher in the DPPS group (7.5 % vs. 17.6 %; P = 0.04). There was no difference in post-procedure mean length of hospital stay (6.3 days [standard deviation 27.9] vs. 3.7 days [5.7]; P = 0.31). Conclusion When compared to DPPSs, LAMSs are a safe, feasible, and effective modality for the treatment of pancreatic pseudocysts and are associated with a higher rate of clinical success, shorter procedure time, less need for percutaneous interventions, and a lower overall rate of adverse events.

scholarly journals Are Lumen-Apposing Metal Stents More Effective Than Plastic Stents for the Management of Pancreatic Fluid Collections: An Updated Systematic Review and Meta-analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Shali Tan ◽  
Chunyu Zhong ◽  
Yutang Ren ◽  
Xujuan Luo ◽  
Jin Xu ◽  
...  
Keyword(s):  
Adverse Events ◽  
Clinical Success ◽  
Meta Analysis ◽  
Plastic Stents ◽  
Metal Stents ◽  
Efficacy And Safety ◽  
Technical Success ◽  
Pancreatic Fluid Collections ◽  
Pancreatic Fluid ◽  
Fluid Collections

Background and Aims. Recently, a new type of metal stent, named lumen-apposing metal stents (LAMS), has been designed to manage pancreatic fluid collections (PFC), and a few studies have reported its efficacy and safety. Therefore, we conducted this meta-analysis to investigate the role of LAMS for PFC. Methods. We searched the studies from PubMed, MEDLINE, Embase, and Cochrane databases from inception to May 2019. We extracted the data and analyzed the technical success, clinical success, and adverse events of LAMS to evaluate its efficacy and safety. Results. Twenty studies with 1534 patients were included. The pooled technical success, clinical success, and adverse event rates of LAMS for PFC were 96.2% (95% confidence interval (CI): 94.6%-97.4%), 86.8% (95% CI: 83.1%-89.8%), and 20.7% (95% CI: 16.1%-26.1%), respectively. Eight studies including 875 patients compared the clinical outcomes of LAMS with plastic stents. The pooled risk ratio (RR) of technical success and clinical success for LAMS and plastic stent was 1.01 (95% CI: 0.98-1.04, P=0.62) and 1.06 (95% CI: 1.01-1.12, P=0.03), respectively. As for the overall adverse events, the pooled RR was 1.51 (95% CI: 0.67-3.44, P=0.32). Conclusions. Our current study revealed that LAMS has advantages over plastic stents for PFC, with higher clinical success rate and lower complication rate of infection and occlusion.

Safety and efficacy of the use of lumen-apposing metal stents in the management of postoperative fluid collections: a large, international, multicenter study

Endoscopy ◽  
2019 ◽  
Vol 51 (08) ◽  
pp. 715-721
Author(s):  
Juliana Yang ◽  
Jeremy H. Kaplan ◽  
Amrita Sethi ◽  
Enad Dawod ◽  
Reem Z. Sharaiha ◽  
...  
Keyword(s):  
Adverse Events ◽  
Clinical Success ◽  
Clinical Success Rate ◽  
Metal Stents ◽  
Technical Success ◽  
Common Etiology ◽  
Feasible Alternative ◽  
International Multicenter Study ◽  
Fluid Collections ◽  
International Multicenter

Abstract Background Multiple studies have examined the use of lumen-apposing metal stents (LAMSs) for the drainage of peripancreatic fluid collections. Data on the use of LAMSs for postoperative fluid collections (POFCs) are scarce. POFCs may lead to severe complications without appropriate treatment. We aimed to study the outcomes (technical success, clinical success, rate/severity of adverse events, length of stay, recurrence) of the use of LAMSs for the drainage of POFCs. Methods This international, multicenter, retrospective study involved 19 centers between January 2012 and October 2017. The primary outcome was clinical success. Secondary outcomes included technical success and rate/severity of adverse events using the ASGE lexicon. Results A total of 62 patients were included during the study period. The most common etiology of the POFCs was distal pancreatectomy (46.8 %). The mean (standard deviation) diameter was 84.5 mm (30.7 mm). The most common indication for drainage was infection (48.4 %) and transgastric drainage was the most common approach (82.3 %). Technical success was achieved in 60/62 patients (96.8 %) and clinical success in 57/62 patients (91.9 %) during a median (interquartile range) follow-up of 231 days (90 – 300 days). Percutaneous drainage was needed in 8.1 % of patients. Adverse events occurred intraoperatively in 1/62 patients (1.6 %) and postoperatively in 7/62 (11.3 %). There was no procedure-related mortality. Conclusion This is the largest study on the use of LAMSs for POFCs. It suggests good clinical efficacy and safety of this approach. The use of LAMSs in the management of POFCs is a feasible alternative to percutaneous and surgical drainage.

scholarly journals Lumen apposing metal stents are superior to plastic stents in pancreatic walled-off necrosis: a large international multicenter study

2019 ◽  
Vol 07 (03) ◽  
pp. E347-E354 ◽  
Author(s):  
Yen-I Chen ◽  
Juliana Yang ◽  
Shai Friedland ◽  
Ian Holmes ◽  
Ryan Law ◽  
...  
Keyword(s):  
Clinical Success ◽  
Plastic Stents ◽  
Metal Stents ◽  
Success Rates ◽  
Technical Success ◽  
Transmural Drainage ◽  
International Multicenter Study ◽  
Walled Off Necrosis ◽  
International Multicenter

Abstract Background and study aims The use of lumen apposing metal stents (LAMS) during EUS-guided transmural drainage (EUS-TD) of pancreatic walled-off necrosis (WON) has gained popularity. Data supporting their use in WON over plastic stents (PS), however, remain scarce. The aim of this study was to compare the clinical efficacy of LAMS (Axios, Boston Scientific) with PS in WON. Patients and methods This was a multicenter, retrospective study involving 14 centers. Consecutive patients who underwent EUS-TD of WON (2012 – 2016) were included. The primary end point was clinical success defined as WON size ≤ 3 cm within a 6-month period without need for percutaneous drainage (PCD) or surgery. Results A total of 189 patients (mean age 55.2 ± 15.6 years, 34.9 % female) were included (102 LAMS and 87 PS). Technical success rates were similar: 100 % in LAMS and 98.9 % in PS (P = 0.28). Clinical success was attained in 80.4 % of LAMS and 57.5 % of PS (P = 0.001). Rate of PCD was similar (13.7 % LAMS vs. 16.3 % PS, P = 0.62), while PS was associated with a greater need for surgery (16.1 % PS vs. 5.6 % LAMS, P = 0.02). Adverse events (AEs) were observed in 9.8 % of LAMS and 10.3 % of PS (P = 0.90) and were rated as severe in 2.0 % and 6.9 %, respectively (P = 0.93). After excluding patients with < 6 months follow-up, the rate of WON recurrence following initial clinical success was greater with PS (22.9 % PS vs. 5.6 % LAMS, P = 0.04). Conclusions When compared to PS, LAMS in WON is associated with higher clinical success, shorter procedure time, lower need for surgery, and lower rate of recurrence.

Novel 15-mm-long lumen-apposing metal stent for endoscopic ultrasound-guided drainage of pancreatic fluid collections located ≥10 mm from the luminal wall

Endoscopy ◽  
2021 ◽  
Author(s):  
Linda Y. Zhang ◽  
Rastislav Kunda ◽  
Maridi Aerts ◽  
Nouredin Messaoudi ◽  
Rishi Pawa ◽  
...  
Keyword(s):  
Endoscopic Ultrasound ◽  
Clinical Symptoms ◽  
Clinical Success ◽  
Duodenal Wall ◽  
Metal Stents ◽  
Pancreatic Fluid Collections ◽  
Pancreatic Fluid ◽  
Maximal Diameter ◽  
International Multicenter Study ◽  
Fluid Collections

Abstract Background Endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collections (PFCs) by cautery-enhanced lumen-apposing metal stents (LAMS) has largely been limited to collections located < 10 mm from the luminal wall. We present outcomes of the use of a novel 15-mm-long cautery-enhanced LAMS for drainage of PFCs located ≥ 10 mm away. Methods This international, multicenter study analyzed all adults with PFCs located ≥ 10 mm from the luminal wall who were treated by EUS-guided drainage using the 15-mm-long cautery-enhanced LAMS. The primary outcome was technical success. Secondary outcomes included clinical success (decrease in PFC size by ≥ 50 % at 30 days and resolution of clinical symptoms without surgical intervention), complications, and recurrence. Results 35 patients (median age 57 years; interquartile range [IQR] 47–64 years; 49 % male) underwent novel LAMS placement for drainage of PFCs (26 walled-off necrosis, 9 pseudocysts), measuring 85 mm (IQR 64–117) maximal diameter and located 11.8 mm (IQR 10–12.3; range 10–14) from the gastric/duodenal wall. Technical and clinical success were high (both 97 %), with recurrence in one patient (3 %) at a median follow-up of 123 days (58–236). Three complications occurred (9 %; one mild, two moderate). Conclusions The 15-mm-long cautery-enhanced LAMS was feasible and safe for drainage of PFCs located 10–14 mm from the luminal wall.

scholarly journals Outcomes of a single-step endoscopic ultrasound-guided drainage of pancreatic-fluid collections using an electrocautery-enhanced coaxial lumen-apposing, self-expanding metal stent with and without fluoroscopy

2020 ◽  
Author(s):  
Babatunde Olaiya ◽  
Parit Mekaroonkamol ◽  
Bai-Wen Li ◽  
Julia Massaad ◽  
Cicily T Vachaparambil ◽  
...  
Keyword(s):  
Clinical Success ◽  
Stent Migration ◽  
Single Step ◽  
Success Rates ◽  
Metal Stent ◽  
Technical Success ◽  
Pancreatic Fluid Collections ◽  
Pancreatic Fluid ◽  
The Mean ◽  
Fluid Collections

Abstract Background Fluoroscopy is often used during the endoscopic drainage of pancreatic-fluid collections (PFCs). An electrocautery-enhanced coaxial lumen-apposing, self-expanding metal stent (ELAMS) facilitates a single-step procedure and may avoid the need for fluoroscopy. This study compares the treatment outcomes using ELAMS with and without fluoroscopy. Methods Patients with PFCs who had cystogastrostomy from January 2014 to February 2017 were enrolled. Two groups were studied based on fluoroscopy use. Technical success was defined as uneventful insertion of ELAMS at time of procedure. Clinical success was defined as (i) clinical resolution of symptoms after the procedure and (ii) &gt;75% reduction in cyst size on computed tomography 8 weeks after stent placement. Adverse events including bleeding, stent migration, and infection were recorded. Results A total of 21 patients (13 males) had PFCs drainage with ELAMS in the study period. The mean age was 51.6 ± 14.2 years. Thirteen patients had walled-off necrosis while eight had a pancreatic pseudocyst. The mean size of the PFCs was 11.3 ± 3.3 cm. Fluoroscopy was used in seven cases (33%) and was associated with a longer procedure time compared to non-fluoroscopy (43.1 ± 10.4 vs 33.3 ± 10.5 min, P = 0.025). This association was independent of the size, location, or type of PFCs. Fluoroscopy had no effect on the technical success rates. In fluoroless procedures, the clinical resolution was 91% as compared to 71% in fluoroscopy procedures (P = 0.52) and the radiologic resolution was 57% as compared to 71% in fluoroscopy procedures (P = 0. 65). Three cases of stent migration/displacement occurred in the fluoroless procedures. Conclusions ELAMS may avoid the need for fluoroscopy during cystogastrostomy. Procedures without fluoroscopy were significantly shorter and fluoroscopy use had no impact on the technical or clinical success rates.

scholarly journals Clinical impact of EUS treatment of walled-off pancreatic necrosis with dedicated devices

2017 ◽  
Vol 05 (08) ◽  
pp. E784-E791 ◽  
Author(s):  
Ilaria Tarantino ◽  
Dario Ligresti ◽  
Fabio Tuzzolino ◽  
Luca Barresi ◽  
Gabriele Curcio ◽  
...  
Keyword(s):  
Adverse Events ◽  
Pancreatic Necrosis ◽  
Clinical Success ◽  
Length Of Hospital Stay ◽  
Multiple Organ ◽  
Technical Success ◽  
Stent Deployment ◽  
Invasive Approach ◽  
Endoscopic Necrosectomy ◽  
Stent Retrieval

Abstract Background and study aims Walled-off pancreatic necrosis (WOPN) represents the major risk factor for sepsis-related multiple organ failure. Surgical debridement is an invasive approach associated with high rates of adverse events (AEs) and death. As an alternative, endoscopic ultrasound-guided cysto-gastro-anastomosis has emerged as an effective treatment for WOPNs. Recently a new dedicated-lumen apposing metal stent (LAMS) has been used with satisfactory results in treating peri-pancreatic fluid collections, including WOPNs. The primary outcomes of this study were to evaluate survival and clinical success. Secondary outcomes included: technical success, adverse events and recurrence rate. Patients and methods All consecutive patients with infected WOPN between February 2014 and June 2016 were retrospectively reviewed. Patients underwent placement of a new LAMS incorporated in an electrocautery-enhanced delivery system and direct endoscopic necrosectomy (DEN). DEN was performed immediately after stent deployment and repeated every 3 to 7 days until complete resolution. Results In the study period we treated 20 consecutive patients with infected WOPN using the new LAMS. Technical success was achieved in 95 % of patients. Clinical success was achieved in 73 % and 84.2 % of patients at 1 and 3 months, respectively. Survival rate was 84.2 % and 79 %. Mean length of hospital stay was 19 days (range 3 – 43). No AEs occurred. Patients were followed up after stent retrieval for a mean time of 554,7 days (range 70 – 986) and no recurrence was observed. Conclusions DEN following “1-step, exchange-free” LAMS positioning recorded excellent results. We believe that simplicity of procedure plays a key role in terms of safety.

Safety of lumen-apposing stent with or without coaxial plastic stent for endoscopic ultrasound-guided drainage of pancreatic fluid collections: a retrospective study

Endoscopy ◽  
2018 ◽  
Vol 50 (10) ◽  
pp. 1022-1026 ◽  
Author(s):  
Manuel Puga ◽  
Claudia Consiglieri ◽  
Juli Busquets ◽  
Natàlia Pallarès ◽  
Lluis Secanella ◽  
...  
Keyword(s):  
Adverse Events ◽  
Endoscopic Ultrasound ◽  
Clinical Success ◽  
Success Rates ◽  
Plastic Stent ◽  
Frequent Adverse Event ◽  
Pancreatic Fluid Collections ◽  
Pancreatic Fluid ◽  
Transmural Drainage ◽  
Fluid Collections

Abstract Background The aim of this study was to evaluate whether the placement of a coaxial double-pigtail plastic stent (DPS) within a lumen-apposing metal stent (LAMS) may improve the safety of endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collections (PFCs). Methods This was a retrospective cohort study including patients with PFCs and an indication for transmural drainage. Two strategies (LAMS alone or LAMS plus DPS) were used at the endoscopist’s discretion. Results A total of 41 patients were treated (21 LAMS alone; 20 LAMS plus DPS). The characteristics of the PFCs, and the technical and clinical success rates did not differ between groups. The LAMS alone group had a significantly higher rate of adverse events than the LAMS plus DPS group (42.9 % vs. 10.0 %; P = 0.04). Bleeding was the most frequent adverse event observed. Conclusions The addition of a coaxial DPS to LAMS was associated with a lower rate of adverse events in EUS-guided drainage of PFCs.

scholarly journals Plastic stents are more cost-effective than lumen-apposing metal stents in management of pancreatic pseudocysts

2018 ◽  
Vol 06 (07) ◽  
pp. E780-E788 ◽  
Author(s):  
Yen-I Chen ◽  
Mouen Khashab ◽  
Viviane Adam ◽  
Ge Bai ◽  
Vikesh Singh ◽  
...  
Keyword(s):  
Cost Effective ◽  
Sensitivity Analyses ◽  
Plastic Stents ◽  
Pancreatic Pseudocysts ◽  
Metal Stents ◽  
Endoscopic Drainage ◽  
Success Rates ◽  
Initial Management ◽  
Pancreatic Fluid ◽  
Fluid Collections

Abstract Background and study aims Endoscopic ultrasound-guided drainage is an effective and accepted primary modality for management of pancreatic pseudocyst (PP). A lumen-apposing metal stent (LAMS) has recently been developed specifically for drainage of pancreatic fluid collections which may be superior to using traditional plastic stents (PS) but is more expensive. Because use of a stent involves a risk of unplanned endoscopy, percutaneous drainage (PCD) and surgery, their costs should also be included in the comparison and a cost-effectiveness analysis of LAMS and PS should therefore be performed Patients and methods A decision tree was developed assessing both endoscopic drainage strategies for patients with PP: LAMS and PS over a 6-month time horizon. For each strategy, inpatients received a stent and were followed for subsequent need for direct further interventions or adverse events leading to unplanned endoscopy, PCD, surgery, or successful endoscopic drainage using probabilities obtained from the literature. The unit of effectiveness was successful endoscopic drainage without need for PCD or surgery. Sensitivity analyses were performed. Results Success rates were 93.9 % for LAMS and 96.96 % for PS. Respective costs per successful drainage were US $ 18,129 (LAMS) and US $ 10,403 (PS). The LAMS strategy was thus characterized as dominated by the PS approach because it was costlier and less effective than PS. Both deterministic and probabilistic sensitivity analyses confirmed the robustness of these findings. Conclusion Use of LAMS is not less effective and more costly than PS in management of patients with PP. As such, PS should be preferred over LAMS as initial management of these patients.

scholarly journals Safety and rate of delayed adverse events with lumen-apposing metal stents (LAMS) for pancreatic fluid collections: a multicenter study

2018 ◽  
Vol 06 (10) ◽  
pp. E1267-E1275 ◽  
Author(s):  
Dennis Yang ◽  
Yaseen B. Perbtani ◽  
Lazarus K Mramba ◽  
Tossapol Kerdsirichairat ◽  
Anoop Prabhu ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Adverse Events ◽  
Treatment Failure ◽  
Metal Stents ◽  
Endoscopic Drainage ◽  
Stent Occlusion ◽  
Pancreatic Fluid Collections ◽  
Pancreatic Fluid ◽  
Fluid Collections

Abstract Background and study aims Endoscopic drainage with dedicated lumen-apposing metal stents (LAMS) is routinely performed for symptomatic pancreatic fluid collections (PFCs), walled-off necrosis (WON) and pseudocyst (PP). There has been increasing concern regarding delayed adverse events associated with the indwelling LAMS.  Patients and methods Multicenter retrospective analysis of consecutive patients who underwent endoscopic ultrasound (EUS)-guided LAMS placement for PFC from January 2010 to May 2017. Main outcomes included: (1) resolution of the PFC, (2) rate of delayed adverse events at follow-up, and (3) predictors of treatment failure and delayed adverse events on logistic regression. Results A total of 122 patients (mean age 50.9 years, 68 % male) underwent LAMS insertion for 64 WON (98.4 %) and 58 PP (98.3 %). PFC mean size was 10.6 cm. PFC resolution was significantly lower for WON (62.3 %) vs. PP (96.5 %) (P < 0.001) on imaging at a median of 4 weeks. Stent occlusion was identified in 18 (29.5 %) and 10 (17.5 %) patients with WON and PP, respectively (P = 0.13). There were no cases of delayed bleeding or buried stent on follow-up endoscopy. Use of electrocautery-enhanced LAMS was the only factor associated with treatment failure of WON (OR = 13.2; 95 % ci: 3.33 – 51.82, P = 0.02) on logistic regression. There were no patient, operator, or procedure-related factors predictive of stent occlusion. Conclusions EUS-guided LAMS for PFC is associated with a low incidence of delayed adverse events. While nearly all PPs resolve at 4 weeks permitting LAMS removal shortly thereafter, many WON persist, with use of electrocautery-enhanced LAMS being the sole predictor of treatment failure.

scholarly journals Comparative outcomes of endoscopic ultrasound–guided cystogastrostomy for peripancreatic fluid collections: a systematic review and meta-analysis

2019 ◽  
Vol 12 ◽  
pp. 263177451984340 ◽  
Author(s):  
Benjamin D. Renelus ◽  
Daniel S. Jamorabo ◽  
Hashroop K. Gurm ◽  
Niel Dave ◽  
William M. Briggs ◽  
...  
Keyword(s):  
Endoscopic Ultrasound ◽  
Pancreatic Necrosis ◽  
Meta Analysis ◽  
Fluid Collection ◽  
Plastic Stents ◽  
Pancreatic Pseudocysts ◽  
Technical Success ◽  
Ultrasound Guided ◽  
Technical Success Rate ◽  
Fluid Collections

Background: Endoscopic ultrasound–guided cystogastrostomy has become the first-line treatment for symptomatic peripancreatic fluid collections. The aim of this study is to analyze the efficacy and safety of cystogastrostomy via a meta-analysis of the literature. Methods: We performed a systematic search of PubMed and Medline databases for studies published from January 2005 to May 2018. We included randomized controlled trials along with retrospective and prospective observational studies reporting endoscopic ultrasound–guided cystogastrostomy stent placement for peripancreatic fluid collections. The primary outcome for our meta-analysis was complete peripancreatic fluid collection resolution on imaging. Our secondary outcomes included comparative efficacy and safety of the procedure for pseudocysts and walled-off pancreatic necrosis using metal and plastic stents. Results: Seventeen articles involving 1708 patients met our inclusion criteria for meta-analysis. Based upon the random effects model, the pooled technical success rate of cystogastrostomy was 88% (95% confidence interval = 83–92 with I2 = 85%). There was no difference in the technical success rate between pancreatic pseudocysts and walled-off pancreatic necrosis (91% and 86%, respectively p = nonsignificant). The adverse event rates for metal and plastic stents were equivalent (14% and 18%, respectively, p = nonsignificant). Conclusion: Endoscopic ultrasound–guided cystogastrostomy stents are effective in the treatment of pancreatic pseudocysts and walled-off pancreatic necrosis. We found no difference in technical success or adverse event rates of drainage based on peripancreatic fluid collection type or stent used.

Sign in / Sign up

Export Citation Format

Share Document