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BACKGROUND: Prospective, single-center trials have shown that the implementation of the Kidney Disease: Improving Global Outcomes (KDIGO) recommendations in high-risk patients significantly reduced the development of acute kidney injury (AKI) after surgery. We sought to evaluate the feasibility of implementing a bundle of supportive measures based on the KDIGO guideline in high-risk patients undergoing cardiac surgery in a multicenter setting in preparation for a large definitive trial. METHODS: In this multicenter, multinational, randomized controlled trial, we examined the adherence to the KDIGO bundle consisting of optimization of volume status and hemodynamics, functional hemodynamic monitoring, avoidance of nephrotoxic drugs, and prevention of hyperglycemia in high-risk patients identified by the urinary biomarkers tissue inhibitor of metalloproteinases-2 [TIMP-2] and insulin growth factor-binding protein 7 [IGFBP7] after cardiac surgery. The primary end point was the adherence to the bundle protocol and was evaluated by the percentage of compliant patients with a 95% confidence interval (CI) according to Clopper-Pearson. Secondary end points included the development and severity of AKI. RESULTS: In total, 278 patients were included in the final analysis. In the intervention group, 65.4% of patients received the complete bundle as compared to 4.2% in the control group (absolute risk reduction [ARR] 61.2 [95% CI, 52.6-69.9]; P < .001). AKI rates were statistically not different in both groups (46.3% intervention versus 41.5% control group; ARR -4.8% [95% CI, -16.4 to 6.9]; P = .423). However, the occurrence of moderate and severe AKI was significantly lower in the intervention group as compared to the control group (14.0% vs 23.9%; ARR 10.0% [95% CI, 0.9-19.1]; P = .034). There were no significant effects on other specified secondary outcomes. CONCLUSIONS: Implementation of a KDIGO-derived treatment bundle is feasible in a multinational setting. Furthermore, moderate to severe AKI was significantly reduced in the intervention group.

Use of Beta-D-Glucan for Monitoring Antifungal Therapy of a Multidrug Resistant Invasive Magnusiomyces capitatus Infection Shrijit Nair, Rosa Miquel, Wayel Jassem, Abid Suddle, Anita Verma King’s College Hospital, Denmark Hill, London, United Kingdom ABSTRACT Invasive fungal infection (IFI) with Magnusiomyces capitatus is rare, occurring mainly in patients with hematological diseases. We report first case of tissue invasive M. capitatus infection in a liver transplant recipient (LTR) and use of an IFI biomarker beta-D glucan (BDG) for monitoring antifungal therapy. A 59 year old male received 3rd liver transplant (LT) for primary sclerosing cholangitis and developed invasive tissue disease due to M. capitatus. BDG was done weekly to monitor the antifungal therapy. However in the 5th week there was sudden rise in BDG >523pg/ml despite dual antifungal. This was used as a guide to investigate for further persistence of focus for IFI and source control. M. capitatus was intermediate resistant to voriconazole and echinocandins. Voriconazole was stopped and LAmB was continued for 6 month. In our experience, biomarker BDG is proved helpful for diagnosis, monitoring the therapeutic efficacy and used as guide to decide the duration of antifungal therapy. J Microbiol Infect Dis 2020; 10(2):98-102.

BACKGROUND: The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines recommend a bundle of different measures for patients at increased risk of acute kidney injury (AKI). Prospective, single-center, randomized controlled trials (RCTs) have shown that management in accordance with the KDIGO recommendations was associated with a significant reduction in the incidence of postoperative AKI in high-risk patients. However, compliance with the KDIGO bundle in routine clinical practice is unknown. METHODS: This observational prevalence study was performed in conjunction with a prospective RCT investigating the role of the KDIGO bundle in high-risk patients undergoing cardiac surgery. A 2-day observational prevalence study was performed in all participating centers before the RCT to explore routine clinical practice. The participating hospitals provided the following data: demographics and surgical characteristics, AKI rates, and compliance rates with the individual components of the bundle. RESULTS: Ninety-five patients were enrolled in 12 participating hospitals. The incidence of AKI within 72 hours after cardiac surgery was 24.2%. In 5.3% of all patients, clinical management was fully compliant with all 6 components of the bundle. Nephrotoxic drugs were discontinued in 52.6% of patients, volume optimization was performed in 70.5%, 52.6% of the patients underwent functional hemodynamic monitoring, close monitoring of serum creatinine and urine output was undertaken in 24.2% of patients, hyperglycemia was avoided in 41.1% of patients, and no patient received radiocontrast agents. The patients received on average 3.4 (standard deviation [SD] +/- 1.1) of 6 supportive measures as recommended by the KDIGO guidelines. There was no significant difference in the number of applied measures between AKI and non-AKI patients (3.2 [SD +/- 1.1] vs 3.5 [SD +/- 1.1]; P = .347). CONCLUSIONS: In patients after cardiac surgery, compliance with the KDIGO recommendations was low in routine clinical practice.

With the current increased incidence of cirrhosis, the demand for liver transplant continues to grow. Here, we performed a systematic review to assess the feasibility, safety, and long-term outcomes of reused liver grafts for expansion of the donor pool. Our search identified 19 studies, including 36 patients plus 1 patient from our own institution. Ten studies were single case reports, 4 were case series, 4 were letters to the editor, and 1 was a literature review and also included a case report. Our patient presented with intentional acetaminophen overdose, received a transplant from a brain dead donor, and was confirmed brain dead 12 days posttransplant. The second recipient, who had alcoholrelated liver disease cirrhosis, underwent orthotopic liver transplant with the reused liver and was discharged from the hospital after an uneventful postoperative course. Among the 19 studies, all donors had confirmed brain death and all transplants included the whole liver, except for 2 cases of auxiliary liver grafts (reduced liver transplant) and 1 case of extended right living-donor liver graft (donor and recipient being related sisters). Overall, among first recipients, the most frequent cause of liver disease was acetaminophen overdose followed by alcohol-related liver disease cirrhosis. There were 2 cases of retransplant. Among second recipients, hepatocellular carcinoma was the most frequent cause of liver disease followed by alcohol-related liver disease cirrhosis. We found that functional outcomes with these grafts were comparable to outcomes with grafts from conventional donors; in the absence of other contraindications, we suggest that, not only for liver transplant but for other organs, these reused grafts can be used for those awaiting transplantation. Because the ability to reuse grafts is an infrequent condition, it would be difficult to generally recommend this technique; however, on a case-by-case basis, this source could expand the donor pool.

With the increasing prevalence of obesity in the population, anaesthetists must confidently manage both the pathophysiological and technical challenges presented in bariatric and non-bariatric surgery. The intraoperative period represents an important opportunity to optimise and mitigate risk. However, there is little formal guidance on what intraoperative monitoring techniques should be used in this population. This narrative review collates the existing evidence for intraoperative monitoring devices in the obese patients. Although a number of non-invasive blood pressure monitors have been tested, an invasive arterial line remains the most reliable monitor if accurate, continuous monitoring is required. Goal-directed fluid therapy is recommended by clinical practice guidelines, but the methods tested to assess this had guarded applicability to the obese population. Transcutaneous carbon dioxide (CO2) monitoring may offer additional benefit to standard capnography in this population. Individually titrated positive end expiratory pressure (PEEP) and recruitment manoeuvres improved intraoperative mechanics but yielded no benefit in the immediate postoperative period. Depth of anaesthesia monitoring appears to be beneficial in the perioperative period regarding recovery times and complications. Objective confirmation of reversal of neuromuscular blockade continues to be a central tenet of anaesthesia practice, particularly relevant to this group who have been characterised as an “at risk” extubation group. Where deep neuromuscular blockade is used, continuous neuromuscular blockade is suggested. Both obesity and the intraoperative context represent somewhat unstable search terms, as the clinical implications of the obesity phenotype are not uniform, and the type and urgency of surgery have significant impact on the intraoperative setting. This renders the generation of summary conclusions around what intraoperative monitoring techniques are suitable in this population highly challenging.

Cardiopulmonary exercise testing (CPET) is an established method for the objective assessment of functional status prior to undergoing major surgery. It integrates cardiac, respiratory and metabolic functions to give a dynamic assessment of the cardiorespiratory system at rest and during exercise. This is a brief introduction to the theory and practical aspects of CPET in patients awaiting hepatico-pancreatic-biliary (HPB) surgery and liver transplantation (LT), which are both associated with high morbidity rates. In recent years there has been an increasing interest and utilisation of CPET pre-operatively for collaborative decision making to guide prehabilitation and plan perioperative care. This chapter will describe normal exercise physiology and a systematic approach to CPET interpretation, which can help to identify physiological limitations and common patterns seen in patients awaiting HPB and LT surgery. The evidence base for its use in risk prediction of post-operative morbidity and mortality will be discussed along with evidence for its use in other aspects of perioperative care.

IntroductionAcute kidney injury (AKI) is a frequent complication after cardiac surgery with adverse short-term and long-term outcomes. Although prevention of AKI (PrevAKI) is strongly recommended, the optimal strategy is uncertain. The Kidney Disease: Improving Global Outcomes (KDIGO) guideline recommended a bundle of supportive measures in high-risk patients. In a single-centre trial, we recently demonstrated that the strict implementation of the KDIGO bundle significantly reduced the occurrence of AKI after cardiac surgery. In this feasibility study, we aim to evaluate whether the study protocol can be implemented in a multicentre setting in preparation for a large multicentre trial.Methods and analysisWe plan to conduct a prospective, observational survey followed by a randomised controlled, multicentre, multinational clinical trial including 280 patients undergoing cardiac surgery with cardiopulmonary bypass. The purpose of the observational survey is to explore the adherence to the KDIGO recommendations in routine clinical practice. The second phase is a randomised controlled trial. The objective is to investigate whether the trial protocol is implementable in a large multicentre, multinational setting. The primary endpoint of the interventional part is the compliance rate with the protocol. Secondary endpoints include the occurrence of any AKI and moderate/severe AKI as defined by the KDIGO criteria within 72 hours after surgery, renal recovery at day 90, use of renal replacement therapy (RRT) and mortality at days 30, 60 and 90, the combined endpoint major adverse kidney events consisting of persistent renal dysfunction, RRT and mortality at day 90 and safety outcomes.Ethics and disseminationThe PrevAKI multicentre study has been approved by the leading Research Ethics Committee of the University of Münster and the respective Research Ethics Committee at each participating site. The results will be used to design a large, definitive trial.Trial registration numberNCT03244514.

Hepatopancreaticobiliary (HPB) surgery is major upper abdominal surgery with considerable risk of pulmonary complications related to postoperative pain. While epidural analgesia remains an effective analgesic technique for upper abdominal surgery, HPB surgery poses challenges to its use due to coagulopathy. Erector spinae plane (ESP) blocks are a promising alternative to epidurals. Injection of local anesthetic deep to the erector spinae muscle plane and placement of a catheter for prolonged effect provide both somatic and visceral analgesia for both thoracic and abdominal surgery. We describe a series of 3 cases that illustrate the efficacy of ESP blocks after major HPB surgery.

Early Warning Systems (EWS) track the physiological parameters of individual patients and trigger a response when the parameter threshold has been reached. The use of early warning scores in adult hospital medicine has been shown to be beneficial in facilitating the early recognition of the deteriorating patient, thereby enabling prompt treatment. In 2012, a standardised National Early Warning Score was introduced in Ireland for all non-pregnant patients. The 2007 Confidential Enquiry into Maternal and Child Health recommended that EWS be introduced into maternity practice. However, the unique physiological changes of pregnancy even in health means that any scoring system must be specially adapted. The Obstetric Early Warning Score (OEWS) aims to promote early recognition of the pregnant patient at risk of deterioration. In 2013, a standardised Irish Maternity Early Warning System (IMEWS) was introduced nationally. However, the scoring system is only part of the package, once triggered it needs to be effectively communicated and acted upon promptly by appropriately trained clinicians. Despite undoubted shortcomings, the international evidence to date is supportive of the beneficial role of the OEWS in preventing maternal morbidity. Further research is needed to improve the sensitivity and specificity of the OEWS and how to better integrate it into every-day clinical practice.

To the Editor We read the provocative narrative by Lonnqvist et al [1][1] entitled ‘Should the ESP block be renamed the RIP II block?’ with great interest. The authors identified numerous parallels between the erector spinae plane block (ESPB) and the almost-forgotten interpleural block

Access to effective pain management globally has been elusive, affecting population health worldwide. The treatment gap disproportionately burdens lower- and middle-income countries, and is exacerbated by concerns about restricting opioid access to combat the opioid epidemic in higher-income countries. This global burden of pain raises important social justice and ethical questions about what medical professionals and organizations, state actors, and non-government organizations must do to combat this global public health crisis. Interconnecting national and international issues at systemic and structural levels impose interwoven layers of disadvantages on pain sufferers, indicating that effective and equitable pain management demands the global community to go beyond a medical model in thinking about preventing and treating pain. By focusing on chronic pain, in this chapter we argue that it is an ethical imperative for all stakeholders to attend to the social justice dimensions of the burden of pain. We propose various ways that international stakeholders can incorporate pain research and management into international and national health agendas to foster understanding of the complexities of pain as well as promote safe, multimodal, multidisciplinary, and macro approaches to prevent and manage pain.