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BackgroundThe causes and management of pyogenic liver abscess (PLA) have undergone multiple changes over the past decades. It is a relatively rare disease in the USA, and its incidence rate in the USA is increasing. The last US community hospital experience of PLA was published in 2005. We performed a retrospective study of patients admitted with PLA to an urban safety net hospital.AimsTo ascertain risk factors, management approaches, and outcomes of PLA.MethodsElectronic medical record was queried for diagnosis codes related to PLA during the years 2009–2018. Clinical information was compiled in an electronic database which was later analyzed. Main study outcomes were in-hospital mortality, 30-day readmission rate, and intensive care utilization rate.ResultsA total of 77 patients with PLA were admitted in the study period. Most common risk factors were diabetes mellitus (23.4%), previous liver surgery (20.7%), and hepatic malignancy (16.9%). 89% of patients were treated with percutaneous drainage or aspiration, and surgical drainage was reserved for other with other indications for laparotomy. In-hospital mortality, 30-day readmission, and intensive care utilization rates were 2.6%, 7% and 22%, respectively. Median length of stay was 11 days (inter-quartile range 7). Rate of antimicrobial resistance in abscess fluid cultures was 40%; 13 cases of Klebsiella pneumoniae liver abscess were noted in our cohort, most of whom were Hispanic or Asian.ConclusionsPLA was principally managed by percutaneous drainage or aspiration with good outcomes. Further studies investigating the racial predilection of K. pneumoniae liver abscesses could reveal clues to its pathogenesis.

Background Infected necrosis complicates 10% of all acute pancreatitis episodes and is associated with 15–20% mortality. The current standard treatment for infected necrotizing pancreatitis is the step-up approach (catheter drainage, followed, if necessary, by minimally invasive necrosectomy). Catheter drainage is preferably postponed until the stage of walled-off necrosis, which usually takes 4 weeks. This delay stems from the time when open necrosectomy was the standard. It is unclear whether such delay is needed for catheter drainage or whether earlier intervention could actually be beneficial in the current step-up approach. The POINTER trial investigates if immediate catheter drainage in patients with infected necrotizing pancreatitis is superior to the current practice of postponed intervention. Methods POINTER is a randomized controlled multicenter superiority trial. All patients with necrotizing pancreatitis are screened for eligibility. In total, 104 adult patients with (suspected) infected necrotizing pancreatitis will be randomized to immediate (within 24 h) catheter drainage or current standard care involving postponed catheter drainage. Necrosectomy, if necessary, is preferably postponed until the stage of walled-off necrosis, in both treatment arms. The primary outcome is the Comprehensive Complication Index (CCI), which covers all complications between randomization and 6-month follow up. Secondary outcomes include mortality, complications, number of (repeat) interventions, hospital and intensive care unit (ICU) lengths of stay, quality-adjusted life years (QALYs) and direct and indirect costs. Standard follow-up is at 3 and 6 months after randomization. Discussion The POINTER trial investigates if immediate catheter drainage in infected necrotizing pancreatitis reduces the composite endpoint of complications, as compared with the current standard treatment strategy involving delay of intervention until the stage of walled-off necrosis. Trial registration ISRCTN, 33682933 . Registered on 6 August 2015. Retrospectively registered.

Background Endoscopic therapy is considered first line for management of benign biliary strictures (BBSs). Placement of plastic stents has been effective but limited by their short-term patency and need for repeated procedures. Fully covered self-expandable metallic stents (FCSEMSs) offer longer-lasting biliary drainage without the need for frequent exchanges. Aims The aim of this study was to assess the efficacy and safety of FCSEMS in patients with BBS. Methods A retrospective review of all patients who underwent ERCP and FCSEMS placement at five tertiary referral US hospitals was performed. Stricture resolution and adverse events related to ERCP and/or stenting were recorded. Results A total of 123 patients underwent FCSEMS placement for BBS and 112 underwent a subsequent follow-up ERCP. The mean age was 62 years (±15.6), and 57 % were males. Stricture resolution occurred in 81 % of patients after a mean of 1.2 stenting procedures (mean stent dwell time 24.4 ± 2.3 weeks), with a mean follow-up of 18.5 months. Stricture recurrence occurred in 5 patients, and 3 patients required surgery for treatment of refractory strictures. Stent migration (9.7 %) was the most common complication, followed by stent occlusion (4.9 %), cholangitis (4.1 %), and pancreatitis (3.3 %). There was one case of stent fracture during removal, and one stent could not be removed. There was one death due to cholangitis. Conclusions Majority of BBS can be successfully managed with 1–2 consecutive FCSEMS with stent dwell time of 6 months.

To compare postoperative outcomes between hydrogel-coated chest drains (HCDs) and conventional non-coated drains (NCDs) in patients undergoing general thoracic surgery, using a propensity score-matched analysis. This retrospective multi-institutional study included adult patients who underwent thoracic surgery across 4 European centres between February and September 2022. Patients were grouped according to drain type (HCD vs NCD), and a propensity score-matched analysis was performed to account for 16 preoperative and intraoperative covariates. The primary outcome was length of postoperative hospital stay (LOS). Secondary outcomes included in-hospital complications, intensive care unit (ICU) admission, chest drain reinsertion, readmission, duration of drainage, and in-hospital mortality. Subgroup analysis was performed in patients undergoing anatomical lung resections. A total of 773 patients were included (HCD n = 362; NCD n = 411). After matching, 724 patients were analysed. HCD use was associated with a significantly shorter LOS (average treatment effect of the treated population -1.87 days; 95% CI -3.04 to -0.695; P = .002), lower odds of ICU admission (odds ratio [OR] 0.29; 95% CI 0.16-0.53; P < .001), and lower in-hospital complication rates (OR 0.38; 95% CI 0.26-0.55; P < .001). Rates of pneumonia (5.2% vs 13.4%; P = .001), atrial fibrillation (2.2% vs 9.0%; P < .001), and retained pleural effusion (0.8% vs 3.6%; P = .015) were significantly lower in the HCD group. There were no significant differences in drain duration, readmission, or mortality. In the anatomical resection subgroup, HCDs were similarly associated with reduced LOS and complications. Hydrogel-coated drains are associated with fewer postoperative complications and shorter hospital stay compared to conventional drains, particularly in anatomical lung resections. These findings support further prospective evaluation to define the role of HCDs in routine thoracic surgical practice.

Abstract Objectives Bleeding is a common complication of extracorporeal membrane oxygenation (ECMO) support. While chest tube treatment is infrequently linked to bleeding in non-ECMO patients, several reports suggest a markedly increased risk during ECMO support, sometimes requiring surgical intervention. The true incidence, contributing factors, and effect on outcome from chest tube related bleeding in ECMO patients is unknown. Methods This was a single-centre observational study conducted between 2010 and 2024, including both paediatric and adult patients treated with chest tube for pneumothorax or non-haemorrhagic pleural fluid during their ECMO treatment. Major bleeding was defined by chest tube output amount adjusted to patient age, need for multiple red blood cell transfusions, or need for surgical intervention. Results Of the 1158 screened ECMO patients, 168 (14.5%) required chest drainage for pleural effusions or pneumothorax during the study period, and a total of 279 chest tubes were analysed. Major bleeding occurred in 21 patients (12.5%) and from 23 chest tubes (8.1%). Fourteen patients required thoracotomy. Bleeding was more common with tubes placed during ECMO support (11.3%) compared to pre-ECMO (4.7%, P = .036). Affected patients had longer ECMO durations (median 42 vs 17 days, P = .003) and lower hospital survival (47.6% vs 71.4%, P = .043). No associations were observed between bleeding and tube size, laterality, type, insertion technique, or ECMO mode. The chest wall was the most commonly identified bleeding location. Conclusions There was a markedly increased risk of major bleeding from chest tubes during ECMO, particularly when inserted after cannulation. Patients who experienced bleeding complications had longer hospital stays and lower survival. Up to half of patients on extracorporeal membrane oxygenation (ECMO) experience bleeding complications. Graphical abstract

Background Symptomatic walled-off pancreatic necrosis (WOPN) treated with dual modality endoscopic and percutaneous drainage (DMD) has been shown to decrease length of hospitalization (LOH) and use of radiological resources in comparison to standard percutaneous drainage (SPD). Aim The aim of this study is to demonstrate that as the cohort of DMD and SPD patients expand, the original conclusions are durable. Methods The database of patients receiving treatment for WOPN between January 2006 and April 2011 was analyzed retrospectively. Patients One hundred two patients with symptomatic WOPN who had no previous drainage procedures were evaluated: 49 with DMD and 46 with SPD; 7 were excluded due to a salvage procedure. Results Patient characteristics including age, sex, etiology of pancreatitis, and severity of disease based on computed tomographic severity index were indistinguishable between the two cohorts. The DMD cohort had shorter LOH, time until removal of percutaneous drains, fewer CT scans, drain studies, and endoscopic retrograde cholangiopancreatography (ERCPs; p  < 0.05 for all). There were 12 identifiable complications during DMD, which were successfully treated without the need for surgery. The 30-day mortality in DMD was 4% (one multi-system organ failure and one out of the hospital with congestive heart failure). Three patients receiving SPD had surgery, and three (7%) died in the hospital. Conclusion DMD for symptomatic WOPN reduces LOH, radiological procedures, and number of ERCPs compared to SPD.

Background The placement of prophylactic intra-abdominal drains has been common practice in abdominal operations including pancreatic surgery. The PANDRA trial showed that the omission of drains following pancreatic head resection was non-inferior to intra-abdominal drainage in terms of postoperative reinterventions and superior in terms of clinically relevant pancreatic fistula rate and fistula-associated complications. The aim of the present PANDRA II trial is to evaluate the clinical outcome with versus without prophylactic drain placement after distal pancreatectomy. Methods The PANDRA II trial is a mono-center, randomized controlled, non-inferiority trial with two parallel study groups. In the control group at least one passive intra-abdominal drain is placed at the pancreatic resection margin. In the experimental group no drains are placed. The primary endpoint of this trial will be the Comprehensive Complication Index (CCI) measuring all postoperative complications within 90 days. Secondary endpoints are in-hospital mortality and morbidity, including the rates of postoperative pancreatic fistula, chyle leak, postpancreatectomy hemorrhage, delayed gastric emptying, reinterventions and reoperations, surgical site infection, and abdominal fascia dehiscence. Moreover, length of hospital stay, duration of intensive care unit stay, and the rate of readmission after discharge from hospital (up to day 90 after surgery) are assessed. We will need to analyze 252 patients to test the hypothesis that no drainage is non-inferior to drain placement in terms of the CCI (δ 7.5 points) in a one-sided t test with a one-sided level of significance of 2.5% and a power of 80%. Discussion The results of the PANDRA II trial will help to evaluate the effect of an omission of prophylactic intraperitoneal drainage on the rate of complications after open or minimally invasive distal pancreatectomy. Trial registration German Clinical Trials Register (DRKS), DRKS00013763 . Registered on 6 March 2018.

Background Pleural effusion is an abnormal collection of body fluids that may cause related morbidity or mortality in cirrhotic patients. There are insufficient data to determine the optimal method of drainage, for symptomatic relief in cirrhotic patients with pleural effusion. Aims In this study, we compare the mortality outcomes of catheter drainage versus thoracentesis in cirrhotic patients. Methods The National Health Insurance Database, derived from the Taiwan National Health Insurance Program, was used to identify cirrhotic patients with pleural effusion requiring drainage between January 1, 2007, and December 31, 2010. In all, 2556 cirrhotic patients with pleural effusion were selected for the study and divided into the two groups ( n  = 1278/group) after propensity score matching. Results The mean age was 61.0 ± 14.3 years, and 68.9% (1761/2556) were men. The overall 30-day mortality was 21.0% (538/2556) and was higher in patients treated with catheter drainage than those treated with thoracentesis (23.5 vs. 18.6%, respectively, P  < 0.001 by log-rank test). After Cox proportional hazard regression analysis adjusted by patient sex, age, and comorbid disorders, the risk of 30-day mortality was significantly higher in cirrhotic patients who accepted catheter drainage compared to thoracentesis (hazard ratio 1.30, 95% confidence interval 1.10–1.54, P  = 0.003). Old age, hepatic encephalopathy, bleeding esophageal varices, hepatocellular carcinoma, ascites, and pneumonia were associated with higher risks for 30-day mortality. Conclusion In cirrhotic patients with pleural effusion requiring drainage, catheter drainage is associated with higher mortality compared to thoracentesis.

Abstract OBJECTIVES Mediastinitis is an infection affecting the mediastinum, often caused by cardiovascular or thoracic surgery procedures. Management entails antibiotic therapy, surgical debridement, drainage of infected sites and immediate or delayed closure. Negative pressure wound therapy is useful in cases of delayed sternal closure. Several approaches for mediastinal drainage have been proposed, but there is no consensus on the thoracic intervention approach. METHODS A single-centre, retrospective analysis from the UK analysed data from 19 patients who underwent surgical management for mediastinitis between September 2015 and April 2023. Our primary aim was to describe the outcomes from our series where we predominantly employed an open surgical approach. RESULTS The mean age of our cohort was 49 ± 17.12 years old; the mean performance status (PS ECOG) was 2 ± 0.77. Two people were known smokers (10.53%), while five were non-smokers (26.31%). Fifteen patients underwent an open operation (78.85%), with rest undergoing a minimally invasive approach. The majority of procedures were undertaken from the right-hand side. The overall intensive care unit admission rate was 68.42% (n = 13) with an in-hospital complication rate of 5.26% (n = 1). This was a respiratory arrest secondary to mucous plugging. There were no in-hospital deaths, and median follow-up was 41 months (22–50). Overall survival at 3 years was 85%. CONCLUSIONS Open thoracotomy remains an important surgical strategy in the management of complex mediastinitis, but further validation is required through larger, prospective studies. Mediastinitis is a rare but life-threatening condition that may result from deep sternal wound infection (DSWI), oesophageal perforation or descending necrotizing mediastinitis (DNM) [1]. GRAPHICAL ABSTRACT

Background. Bedside biliary drainage by endoscopic retrograde cholangiopancreatography (ERCP) without fluoroscopy for critically ill patients in the intensive care unit (ICU) remains challenging for endoscopists. The present study was to evaluate the efficacy and safety of radiation-free ERCP for these patients. Methods. Consecutive ICU patients with severe pancreaticobiliary disorders who underwent bedside radiation-free ERCP were retrospectively analyzed. Results. Radiation-free ERCP was performed in 80 patients with acute physiology and chronic health evaluation (APACHE II) score of 24.1±6.2. Cannulation was achieved in 75 (93.75%) patients. Biliary drainage was successfully conducted in 74 (92.5%) patients, including 54 (67.5%) and 20 (25.0%) cases of endoscopic retrograde biliary drainage (ERBD) and endoscopic nasobiliary drainage (ENBD), respectively. Adverse event (mild post-ERCP pancreatitis (PEP)) occurred only in 1 case. The 30-day mortality rate of these patients was 36.25% (29/80) and was much more higher in patients with ERBD in contrast to that of patients with ENBD, 40.7% (22/54) vs. 20% (4/20), OR=2.750, 95%CI=0.810−9.3405, P=0.110. The APACHE II score in nonsurvivors was significantly higher than survivors, 27.6±4.3 versus 22.2±6.3, P=0.009. The APACHE II score>22 was an independent risk factor for mortality, 50% versus 10.7%, 95%CI=2.148−31.569, P=0.002. Conclusions. Radiation-free ERCP guided bedside biliary drainage is effective and safe for critically ill patients, and ENBD may be an optimal procedure due to a low mortality in these patients.