Permanent endoscopic gallbladder stenting versus removal of gallbladder drainage, long-term outcomes after management of acute cholecystitis in high-risk surgical patients for cholecystectomy: Multi-center retrospective cohort study

Endoscopic Gallbladder Drainage EUS LAMS vs. ERCP Trans-papillary Drainage

PURPOSE OF REVIEW

In this review, we discuss the role of endoscopic gallbladder drainage for acute cholecystitis in non-surgical candidates, describe technical aspects, clinical outcomes, and elaborate on considerations when determining which approach to adopt for a given patient.

RECENT FINDINGS

Cholecystectomy remains the criterion standard for management of acute cholecystitis in patients who can safely undergo surgery. For non-surgical candidates, percutaneous cholecystostomy (PTC-GBD) has been the traditional strategy to drain and decompress the gallbladder. Advances in endoscopy have further expanded the nonsurgical interventions and approaches to cholecystitis. Both endoscopic transpapillary gallbladder drainage (ET-GBD) and endoscopic ultrasound guided gallbladder drainage (EUS-GBD) have become acceptable alternatives to PTC-GBD, with growing literature supporting their efficacy, safety and improved patient quality of life when compared to a percutaneous approach. Choosing the appropriate endoscopic technique for gallbladder drainage should be tailored to each patient, keeping in view the specific clinical scenarios, endoscopist preference and following a multi-disciplinary approach.

Postinsertion Management of Cholecystostomy Tubes for Acute Cholecystitis: A Systematic Review

BACKGROUND

Percutaneous gallbladder drainage (PGD) is indicated to treat high-risk patients with acute cholecystitis. Trends suggest increasing use of PGD over time as the population ages and lives longer with multiple comorbidities. There is no consensus on the management of cholecystostomies tube once inserted. This review aims to synthesize and describe the most common protocols in terms of the need and timing of follow-up imaging, management of a destination tube, timing of tube removal, and optimal interval time from tube positioning to delayed cholecystectomy.

METHODS

The study protocol has been registered on the International Prospective Register of Systematic Reviews-PROSPERO. Studies on adult patients diagnosed with acute cholecystitis who underwent a PGD from 2000 to November 2023 were included. The databases searched were MEDLINE, Embase, and Cochrane. The quality assessment tools provided by the NHLBI (National Heart, Lung, and Blood Institute) were applied and descriptive statistics were performed.

RESULTS

We included 22,349 patients from 94 studies with overall fair quality (6 prospective and 88 retrospective). In 92.7% of papers, the authors checked by imaging all patients with a PGD (41 studies included). Depending on protocol time, 30% of studies performed imaging within the first 2 weeks and 35% before tube removal (40 studies included). In the case of a destination tube, 56% of studies reported removing the tube (25 studies included). In the case of tube removal, the mean time after insertion was more than 4 weeks in 24 of the 33 included studies (73%). Interval cholecystectomies are more frequently performed after 5 weeks from PGD (32/38 included studies, 84%). Limitations included high clinical heterogeneity and prevalent retrospective studies.

CONCLUSIONS

A standard management for percutaneous cholecystostomy after insertion is difficult to define based on existing evidence, and currently we can only rely on the most common existing protocols.

Delayed Acute Pancreatitis After Transpapillary Gallbladder Drainage With Plastic Stents

Endoscopic retrograde cholangiopancreatography-guided transpapillary gallbladder drainage has emerged as an effective alternative for management of acute cholecystitis in nonoperable candidates. Delayed acute pancreatitis has not been previously described as an adverse event with this procedure. In this article, we describe 3 patients who developed acute pancreatitis between 2 and 6 weeks after stent insertion with no alternative inciting cause. Delayed acute pancreatitis may represent a rare and previously uncharacterized adverse event related to transpapillary gallbladder drainage.

Acute cholecystitis management in high-risk, critically ill, and unfit-for-surgery patients: the Italian Society of Emergency Surgery and Trauma (SICUT) guidelines

Dealing with acute cholecystitis in high-risk, critically ill, and unfit-for-surgery patients is frequent during daily practice and requires complex management. Several procedures exist to postpone and/or prevent surgical intervention in those patients who temporarily or definitively cannot undergo surgery. After a systematic review of the literature, an expert panel from the Italian Society of Emergency Surgery and Trauma (SICUT) discussed the different issues and statements in subsequent rounds. The final version of the statements was discussed during the annual meeting in Rome (September 2022). The present paper presents the definitive conclusions of the discussion. Fifteen statements based on the literature evidence were provided. The statements gave precise indications regarding the decisional process and the management of patients who cannot temporarily or definitively undergo cholecystectomy for acute cholecystitis. Acute cholecystitis management in high-risk, critically ill, and unfit-for-surgery patients should be multidisciplinary. The different gallbladder drainage methods must be tailored according to each patient and based on the expertise of the hospital. Percutaneous gallbladder drainage is recommended as the first choice as a bridge to surgery or in severely physiologically deranged patients. Endoscopic gallbladder drainage (cholecystoduodenostomy and cholecystogastrostomy) is suggested as a second-line alternative especially as a definitive procedure for those patients not amenable to surgical management. Trans-papillary gallbladder drainage is the last option to be reserved only to those unfit for other techniques. Delayed laparoscopic cholecystectomy in patients with percutaneous gallbladder drainage is suggested in all those patients recovering from the conditions that previously discouraged surgical intervention after at least 6 weeks from the gallbladder drainage.

Factors predicting technical failure of endoscopic transpapillary gallbladder drainage for acute cholecystitis

Objectives

Endoscopic transpapillary gallbladder drainage (ETGBD) is a highly technical procedure, but few studies have evaluated factors that predict its technical success. Therefore, in this study, we sought to identify predictors of technically successful ETGBD.

Methods

One hundred and eighty-two patients who underwent ETGBD for acute cholecystitis at our hospital were retrospectively investigated. Factors associated with technical failure were identified by focusing on clinical characteristics, anatomical features (direction of the cystic duct branch and course of the cystic duct), and procedural factors (cystic duct and gallbladder with or without contrast and cystic duct injury).

Results

The technical success rate was 84.6% (154/182) and the clinical success rate was 96.1% (148/154). The adverse event rate was 11.0% (20/182; cystic duct injury in 13 patients, pancreatitis in six, and liver abscess in one. Univariate and multivariate analyses identified the right cranial direction and spiral-type course of the cystic duct to be significant anatomical features and cystic duct injury to be a significant procedural feature contributing to the technical failure of ETGBD.

Conclusions

ETGBD is a highly practical procedure for patients with acute cholecystitis. However, difficulty is encountered in some cases because of anatomical and procedural factors. Our results suggest that ETGBD may be difficult and thus should not be performed in cases with the right cranial direction or spiral-type course of the cystic duct or those with cystic duct injury.

Endoscopic ultrasound-guided gallbladder drainage with long-term lumen-apposing metal stent indwell: 1-year results from a prospective nationwide observational study

BACKGROUND AND AIM

This study aimed to determine safety and risk factors for adverse events (AEs) of endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) with long-term indwell of lumen-apposing metal stents (LAMS).

METHODS

This study is a multicenter prospective observational study on consecutive high surgical-risk patients requiring gallbladder drainage who underwent EUS-GBD with LAMS over 12 months. Centralized telephone follow-up interviews were conducted every 3 months for 1 year. Patients were censored at LAMS removal, cholecystectomy, or death. AE-free survival was determined using log-rank tests. Cumulative risks were estimated using life-table analysis.

RESULTS

Eighty-two patients were included (53.7% male, median [interquartile range] age of 84.6 [76.5-89.8] years, and 85.4% with acute cholecystitis). Technical success was achieved in 79 (96.3%), and clinical success in 73 (89%). No patient was lost to follow-up; 45 patients (54.9%) completed 1-year follow-up with in situ LAMS. Median (interquartile range) LAMS indwell time was 364 (47-367) days. Overall, 12 (14.6%) patients presented 14 AEs, including 5 (6.1%) recurrent biliary events (3 acute cholangitis, 1 mild acute pancreatitis, and 1 acute cholecystitis). Patients with pancreatobiliary malignancy had an increased risk of recurrent biliary events (33% vs 1.5%, P = 0.001). The overall 1-year cumulative risk of recurrent biliary events was 9.7% (4.1-21.8%). The 1-year risk of AEs and of severe AEs was 18.8% (11-31.2%) and 7.9% (3.3-18.2%), respectively. Pancreatobiliary malignancy was the single risk factor for recurrent biliary events; LAMS misdeployment was the strongest risk factor for AEs.

CONCLUSIONS

Long-term LAMS indwell does not increase the risk of delayed AEs following EUS-GBD.

Endoscopic gallbladder inside-stenting combined with aspirated lavage for calculous cholecystitis in poor surgical candidates: a prospective pilot study

Although long-term stent placement via endoscopic gallbladder stenting (EGBS) reportedly reduces cholecystitis recurrence in patients unfit to undergo cholecystectomy, it can increase the frequency of other late adverse events (AEs) such as cholangitis. This study aimed to examine the feasibility of endoscopic gallbladder inside-stenting (EGB-IS) with lavage and aspiration. This prospective, single-center, pilot study enrolled 83 patients with acute calculous cholecystitis who were poor candidates for surgery. A dedicated catheter with eight side holes was used for lavage and aspiration, and a dedicated single-pigtail stent equipped with a thread was used for EGB-IS. Outcomes such as technical success, clinical success, early AEs, recurrence of cholecystitis, and other symptomatic late AEs associated with EGB-IS with lavage and aspiration were evaluated. The technical and clinical success rates were 80.7% (67/83) and 98.5% (66/67), respectively. The rate of early AEs was 3.6% (3/83). The rate of recurrent cholecystitis was 4.5% (3/66) and that of symptomatic late AEs (besides cholecystitis) was 6.1% (4/66). Consequently, the rate of overall late AEs (cholecystitis plus other events) was 10.6% (7/66). The 1-, 2-, and 3-year cumulative incidence rates of all late AEs were 3.2%, 11.2%, and 18.9%, respectively. EGB-IS with lavage and aspiration for calculous cholecystitis showed promising results in poor surgical candidates. EGB-IS may be useful when EGBS with long-term stent placement is planned, since prevention of cholecystitis recurrence, without a rise in the incidence of other AEs, is anticipated.

ERCP transpapillary nasogallbladder drainage: a last resort for endoscopic management of cholecystitis

Video 1Clinical case for endoscopic management of cholecystitis.

Endoscopic internalization by cutting versus removal of the endoscopic transpapillary naso-gallbladder drainage tube in preoperative management of acute cholecystitis: A retrospective multicenter cohort study

BACKGROUND

Endoscopic transpapillary naso-gallbladder drainage (ENGBD) has been reported to be an effective treatment option for acute cholecystitis. At our institution, ENGBD was first placed for external fistula management, and endoscopic internalization by cutting was performed, shifting to endoscopic transpapillary gallbladder stenting (EGBS) after improvement of cholecystitis. However, there has been no comparative study to define which preoperative management is better: converting ENGBD to EGBS or removing ENGBD. The study aimed to compare the incidence rate of the late adverse events (AEs) related to biliary system between shifting from ENGBD to EGBS and removal of ENGBD.

METHODS

We retrospectively studied 122 patients who underwent ENGBD for acute cholecystitis between January 2010 and October 2022. The patients were divided into two groups: the cutting group (converting ENGBD to EGBS) and the removal group (removal of ENGBD). The short and late clinical outcomes were compared between groups.

RESULTS

Endoscopic transpapillary naso-gallbladder drainage was successfully placed in 78.6% (96/122), and elective cholecystectomy was performed in 31 and 36 patients in the cutting and removal groups, respectively. The cumulative late-AE rates were 6.4% and 33.3% (p = .007), with a median waiting period for elective cholecystectomy of 58 and 33 days (p = .390) in the cutting and removal groups, respectively. In the multivariate analysis, only endoscopic internalization by cutting was an independent factor affecting late AEs.

CONCLUSION

Endoscopic internalization by cutting ENGBD after the resolution of acute cholecystitis was considered effective in reducing the risk of late AEs during the waiting period for an elective cholecystectomy.

Comparison of the long-term outcomes of EUS-guided gallbladder drainage and endoscopic transpapillary gallbladder drainage for calculous cholecystitis in poor surgical candidates: a multicenter propensity score-matched analysis

BACKGROUND AND AIMS

Although long-term stent placement using endoscopic transpapillary gallbladder drainage (ETGBD) and EUS-guided gallbladder drainage (EUS-GBD) reportedly reduces cholecystitis recurrence, comparative evidence of their safety and efficacy is scarce. This study aimed to examine and compare the long-term utility of EUS-GBD versus that of ETGBD in poor surgical candidates.

METHODS

A total of 379 high-risk surgical patients with acute calculous cholecystitis met the eligibility criteria for enrollment in this study. The technical success and adverse events (AEs) were compared between the EUS-GBD and ETGBD groups, and propensity score matching was performed to adjust for differences between the groups. Both groups underwent plastic stent placement, and scheduled stent exchange and removal were not performed in either group.

RESULTS

The technical success rate of EUS-GBD was significantly higher than that of ETGBD (96.7% vs 78.9%, P < .001), whereas the early AE rate did not differ significantly between the 2 methods (7.8% vs 8.9%, P = 1.000). The rate of recurrent cholecystitis did not differ significantly (3.8% vs 3.0%, P = 1.000), but the rate of symptomatic late AEs, in addition to cholecystitis, was significantly lower with EUS-GBD than with ETGBD (1.3% vs 13.4%, P = .006). Consequently, the overall late AE rate was significantly lower with EUS-GBD (5.0% vs 16.4%, P = .029). Multivariate analysis revealed that EUS-GBD was associated with a significantly longer time to late AE (hazard ratio, .26; 95% confidence interval, .10-.67; P = .005).

CONCLUSIONS

Long-term stent placement via EUS-GBD is a promising potential option for limiting late AEs, including recurrence, in poor surgical candidates with calculous cholecystitis.

Prophylactic endoscopic gallbladder stent placement for cholecystitis after covered metal stent placement for distal biliary obstruction (with video)

BACKGROUND AND AIMS

Acute cholecystitis is occasionally observed after biliary drainage using a covered self-expandable metal stent (CSEMS) for distal biliary obstruction (DBO). Gallbladder drainage before CSEMS placement may reduce cholecystitis. This study aimed to examine the preventive effect of endoscopic gallbladder stent placement (EGBS) on cholecystitis with CSEMSs.

METHODS

We retrospectively analyzed patients with DBO who underwent CSEMS placement across the orifice of the cystic duct between November 2014 and October 2021 and were negative for cholecystitis on biliary drainage. Prophylactic EGBS was attempted before CSEMS placement. The incidence of cholecystitis was compared between patients with and without EGBS.

RESULTS

In total, 286 patients (128 men; median age, 75 years) were included in this study. EGBS was attempted in 32 patients before CSEMS placement, and technical success was achieved in 24 patients (75%). Adverse events were noted in 3 patients (9.4%; penetration of cystic duct in 1 and acute pancreatitis in 2). The cumulative incidence of cholecystitis was significantly lower in patients with EGBS than in those without EGBS (1 [4.2%] vs 56 [21.4%], P = .045). In multivariable analysis, EGBS was a significant protective factor against cholecystitis (hazard ratio, .11; 95% confidence interval, .01-.79; P = .028).

CONCLUSIONS

Although the transpapillary approach to the gallbladder is not easy for patients with DBO, EGBS is effective in preventing cholecystitis associated with CSEMS placement.

Impact of percutaneous cholecystostomy in the management of acute cholecystitis: a retrospective cohort study at a tertiary center

Laparoscopic cholecystectomy is the gold standard for the treatment of acute cholecystitis (AC). Percutaneous cholecystostomy (PC) for management of AC is increasing; safe and less invasive than laparoscopic cholecystectomy and is very useful in selected patients with severe comorbidities, not suitable for surgery/general anesthesia. We conducted a retrospective observational study between 2016 and 2021 of patients treated with PC for AC, based on the application of the Tokyo guidelines 13/18. The aim was to analyse the clinical results and management of PC in patients undergoing elective or emergency cholecystectomy. Subsequently, a retrospective analytical study was designed to compare various cohorts: elective or emergency surgery and management with PC alone; patients with/without a high surgical risk; and elective vs emergency surgery. Hundred and ninety five patients with AC were treated with PC. Mean age was 74 years, 59.5% were ASA class III/IV, and the mean Charlson comorbidity index was 5.5. Adherence to Tokyo guidelines regarding indication of PC was 50.8%. The rate of complications associated to PC was 12.3% and the 90-day mortality rate was 14.4%. Mean length of time using PC was 10.7 days. Emergency surgery was performed in 4.6%. The overall success rate using PC was 66.7%, and the 1-year readmission rate due to biliary complications after PC was 28.2%. The rate of scheduled cholecystectomy after PC was 22.6%. Conversion to laparotomy and open approach was more frequent in patients who underwent emergency surgery (p = 0.009). No differences were found in 90-day mortality or in the complication rate. PC achieves improvements in the inflammation and infection associated with AC. In our series, it proved to be an effective and safe treatment during the acute episode of AC. Mortality in patients treated with PC is high due to their older age, greater morbidity, and higher Charlson comorbidity index scores. After PC, emergency surgery is uncommon but readmission due to biliary events is high. Cholecystectomy after PC is the definitive treatment and the laparoscopic approach is feasible. Clinical trial registery: The study was registered in the public accessible database clinicaltrials.gov with the ClinicalTrials.gov ID: NCT05153031. Public release date: 12/09/2021.

Endoscopic Transpapillary Gallbladder Drainage for Recurrent Cholecystitis after Covered Self-expandable Metal Stent Placement for Unresectable Malignant Biliary Obstruction

A 76-year-old woman with advanced pancreatic cancer developed recurrent cholecystitis after covered self-expandable metal stent (CSEMS) placement. The cholecystitis was refractory to repeated percutaneous transhepatic gallbladder drainage (PTGBD). Cholecystography showed a patent cystic duct with right and cranial side bifurcation, which is indicative of an increased likelihood of success of endoscopic transpapillary gallbladder drainage (ETGBD). We were able to manage the cholecystitis by ETGBD without further recurrence. ETGBD is considered an effective internal drainage method for the management of acute cholecystitis after CSEMS placement, and its indication may be decided on the basis of the findings of cholecystography through the PTGBD route.

Long-term outcomes of endoscopic transpapillary gallbladder drainage using a novel spiral plastic stent in acute calculus cholecystitis

BACKGROUND

Endoscopic transpapillary gallbladder stenting (EGBS) is considered for patients with contraindications to early surgery for acute calculus cholecystitis. However, evidence regarding the long-term outcomes of EGBS is insufficient to date. The aim of the study was to evaluate the feasibility of EGBS as a bridge to or alternative to surgery when there are contraindications.

METHODS

We reviewed the cases of patients who underwent EGBS using a novel spiral-shaped plastic stent for acute calculus cholecystitis between January 2011 and December 2019. We retrospectively evaluated the long-term outcomes of EGBS using a novel spiral-shaped plastic stent.

RESULTS

Forty-nine patients were included. The clinical success rate of EGBS was 97%. After EGBS, 25 patients (surgery group) underwent elective cholecystectomy and 24 patients did not (follow-up group). In the surgery group, the median period from EGBS to surgery was 93 days. There was a single late adverse event with cholecystitis recurrence. In the follow-up group, the median follow-up period was 236 days. Late adverse events were observed in eight patients, including recurrence of cholecystitis (four patients), duodenal penetration by the distal stent end (two patients), and distal stent migration (two patient). In the follow-up group, the time to recurrence of biliary obstruction was 527 days.

CONCLUSIONS

EGBS with a novel spiral-shaped plastic stent is safe and effective for long-term acute calculus cholecystitis. There is a possibility of EGBS to be a bridge to surgery and a surgical alternative for acute calculus cholecystitis in patients with contraindications to early cholecystectomy.

Endoscopic Internalization by Cutting the Endoscopic Transpapillary Nasogallbladder Drainage Tube in Management of Acute Cholecystitis: A Retrospective Multicenter Cohort Study

BACKGROUND

Both endoscopic nasogallbladder drainage (ENGBD) and endoscopic gallbladder stenting (EGBS) are effective management for acute cholecystitis, although ENGBD can cause discomfort due to its nature of external drainage. Converting ENGBD to EGBS after improvement of cholecystitis might be one treatment strategy. The drainage tube of ENGBD could be endoscopically cut inside the stomach to convert to internal drainage without additional endoscopic retrograde cholangiography (ERCP).

AIMS

To evaluate the feasibility, efficacy and safety of endoscopic internalization by cutting an ENGBD tube for acute cholecystitis.

METHODS

Twenty-one patients who underwent endoscopic internalization by cutting the ENGBD tube were enrolled in this study. We initially placed an ENGBD tube for gallbladder lavage and continuous drainage. After improvement of cholecystitis, the tube was cut in the stomach by esophagogastroduodenoscopy (EGD) and placed as EGBS until surgery.

RESULTS

The technical success rate of this procedure was 90.5% (19/21), and the clinical success rate was 100% (19/19). The median procedural time was 5 min (range: 2-14 min). Procedural-related adverse events (AEs) were observed in two patients where the tip of the ENGBD tube migrated into the common bile duct from the gallbladder during the procedure in both. During the waiting period for elective surgery, no AEs were identified, except for stent migration without symptoms in one patient (4.7%).

CONCLUSION

Endoscopic internalization by cutting the ENGBD tube after improvement of cholecystitis could be an effective and safe treatment option for preventing recurrent cholecystitis in the waiting period until cholecystectomy.

Long-Term Impact of Endoscopic Gallbladder Stenting for Calculous Cholecystitis in Poor Surgical Candidates: A Multi-center Comparative Study

BACKGROUND

Although long-term stent placement using endoscopic gallbladder stenting (EGBS) reportedly reduces cholecystitis recurrence in patients unfit to undergo cholecystectomy, its efficacy and safety remain uncertain.

AIMS

This study aimed to examine the long-term effect of EGBS in poor surgical candidates of cholecystectomy.

METHODS

A total of 528 high-risk surgical patients with acute calculous cholecystitis met this study's eligibility criteria. The technical success and adverse events (AE) were compared between patients who underwent EGBS and those who underwent percutaneous transhepatic gallbladder drainage (PTGBD). Elective stent exchange and removal were not performed after EGBS. The external tube was removed after improvement of cholecystitis following PTGBD.

RESULTS

The technical success rate was significantly lower with EGBS compared to PTGBD (75.4% versus 98.7%, P < 0.001), while the early-AE rate did not differ significantly between the two methods (7.7% versus 4.3%, P = 0.146). The 1-, 3-, and 5-year cumulative incidence rates of cholecystitis were 3.8%, 7.2%, and 7.2% with EGBS, and 11.7%, 17.6%, and 30.2% with PTGBD, respectively (P = 0.001). Conversely, those of symptomatic late-AE (except cholecystitis) were 8.2%, 22.7%, and 31.4% with EGBS, and 7.5%, 10.9%, and 13.1% with PTGBD, respectively (P = 0.035). Thus, the 1-, 3-, and 5-year cumulative incidence of overall late-AE was 12.0%, 30.4%, and 40.4% with EGBS, and 19.2%, 28.3%, and 42.5% with PTGBD, respectively (P = 0.649).

CONCLUSIONS

Long-term stent placement via EGBS is useful for preventing the recurrence of cholecystitis, but the success rate is low and the frequency of other late-AE increases with the prolongation of the indwelling period.

Endoscopic Management of Acute Cholecystitis

Endoscopic drainage of the gallbladder for acute cholecystitis can be performed with the transpapillary method or endoscopic ultrasound (EUS)-guided method. EUS-guided gallbladder drainage (EUS-GBD) is gaining popularity as the treatment of choice for acute cholecystitis in patients who are deemed high-risk for cholecystectomy (CCY). It provides an alternative to percutaneous drainage and laparoscopic CCY in these patients. With the development of lumen-apposing metal stents (LAMS), the procedure is associated with high rates of technical and clinical success with low rates of adverse events (AEs). The aim of this article is to provide an overview of the current status of EUS-GBD including the indications, techniques, stent systems in-use, and how the procedure compares to conventional techniques are outlined. Furthermore, the feasibility of cholecystoscopy and advanced gallbladder interventions is explored. Finally, a comparison in outcomes of EUS-GBD versus laparoscopic CCY is provided giving some initial data in support of the procedure as an alternative to surgery in a selected group of patients.

Evaluation of cholecystectomy in older individuals using real-world data: a multilevel analysis based on a nationwide administrative database in Japan

BACKGROUND

In the present study, we aimed to evaluate the clinical outcomes of cholecystectomy in older individuals.

METHODS

In this retrospective study, data from the Japanese Diagnosis Procedure Combination database on 96,620 patients who had undergone cholecystectomy at 1060 hospitals from 2018 to 2020 were analyzed. Patients were divided into five age groups: < 75, 75-79, 80-84, 85-89, and ≥ 90 years. Associations between postoperative outcomes and age group were investigated by logistic regression analysis. Mean differences between age groups in time to postoperative recovery and cost were also compared.

RESULTS

Older patients had higher rates of poor scores for activities of daily living and preoperative comorbidity. Compared with the youngest age group (< 75 years), the odds ratios for in-hospital mortality were 3.00 (95% confidence interval, 1.74-5.19), 7.54 (4.73-12.01), 13.47 (8.21-22.14), and 27.64 (15.56-49.09), in the 75-79, 80-84, 85-89, and ≥ 90-year-old age group, respectively (all p < 0.001). Furthermore, the length of postoperative hospital stay and rates of postoperative complications, postoperative reintubation, and reoperation with general anesthesia increased significantly in parallel with increasing age, the highest rates being in the ≥ 90 year-old age group.

CONCLUSIONS

Our real-world data highlight the worse postoperative outcomes, including a higher mortality rate, in older patients undergoing cholecystectomy. Care should be taken when considering the indications for surgery in such patients.

Novel anchoring device for endoscopic ultrasound-guided gallbladder drainage: secondary publication

BACKGROUND

Recently, endoscopic ultrasound-guided gallbladder drainage has attracted much attention. However, the risk management of adverse events and techniques to avoid them are not yet mature. Difficulty dilating the fistula with a dilator or placing a stent for drainage often prolongs the procedure time, which increases the risk of peritonitis or the procedure failure rate. Therefore, the result of the procedure will be unstable, and one cause is the lack of adhesion between the gallbladder and the digestive tract walls.

METHODS

We developed an anchor to fix the stomach and gallbladder walls prior to endoscopic ultrasound-guided gallbladder drainage in four live pigs using the anchor.

RESULTS

The stomach and gallbladder walls were fixed in three pigs, and technical success was achieved in all three pigs. In two pigs that were dissected 17 and 34 days post-procedure, respectively, fixation occurred in one pig. In the other pig, anchoring of the gallbladder and stomach walls did not occur because the wings of the anchor in the gallbladder were damaged.

CONCLUSIONS

Although issues remain regarding efficacy and safety, we plan to make improvements in this novel device and aim for clinical application.

Long-Term Outcomes of Endoscopic Gallbladder Drainage for Cholecystitis in Poor Surgical Candidates: An Updated Comprehensive Review

Laparoscopic cholecystectomy is the standard and fundamental treatment of choice for acute cholecystitis; however, there are cases in which patients may be poor surgical candidates due to advanced age, comorbidities, and/or general condition. The rate of recurrent cholecystitis is high in patients who are not surgically treated; therefore, the prevention of recurrence in this patient population is an important subject of investigation in the management of cholecystitis. Although it has recently been reported that long-term stent placement by endoscopic gallbladder stenting or endoscopic ultrasound-guided gallbladder drainage may reduce the recurrence rate, its efficacy and safety remain controversial. Additionally, details surrounding the long-term stent management of these treatment methods should be further investigated. In this review, we summarize the updated evidence regarding the usefulness of long-term stent placement with endoscopic gallbladder stenting or endoscopic ultrasound-guided gallbladder drainage as a preventive measure for recurrence of cholecystitis and discuss issues that should be addressed in future studies.