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551
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Introduction
Current institution
Additional affiliations
August 2011 - December 2013
January 2010 - present
January 2008 - present
Publications
Publications (551)
We compared the effects of intravenous infusions of 0.9% saline ([Cl] 154 mmol/L) and Plasma-Lyte 148 ([Cl] 98 mmol/L, Baxter Healthcare) on renal blood flow velocity and perfusion in humans using magnetic resonance imaging (MRI).
Animal experiments suggest that hyperchloremia resulting from 0.9% saline infusion may affect renal hemodynamics advers...
To compare the safety and efficacy of antibiotic treatment versus appendicectomy for the primary treatment of uncomplicated acute appendicitis.
Meta-analysis of randomised controlled trials.
Randomised controlled trials of adult patients presenting with uncomplicated acute appendicitis, diagnosed by haematological and radiological investigations.
A...
Low concentrations of albumin in serum and long gastric emptying times have been returned to normal in dogs by salt and water restriction, or a high protein intake. We aimed to determine the effect of salt and water balance on recovery of gastrointestinal function after elective colonic resection in human beings.
We randomly allocated ten patients...
Background:
Prehabilitation, the process of optimizing a patient's physical and nutritional status before surgery, has gained increasing attention for its potential to improve outcomes by enhancing physiological reserves and functional capacity. While body composition may play a role in these outcomes, its specific contribution remains underexplor...
Background
Citation scores (CS) are traditionally used to measure the impact of scientific publications. Altmetric Attention Scores (AAS), in contrast, consider the digital dissemination of articles across social media platforms to track their audience reach. In this cross-sectional study, we aimed to determine the correlation between AAS and CS in...
Background
Nearly half of adult patients undergoing surgery experience moderate or severe postoperative pain. Inadequate pain management hampers postoperative recovery and function and may be associated with adverse outcomes. This multidisciplinary consensus statement provides principles that might aid postoperative recovery, and which should be ap...
Background: Poor survival outcomes in periampullary cancer highlight the need for improvement in biomarkers and the development of novel therapies. Redox proteins, including the thioredoxin system, play vital roles in cellular antioxidant systems. Methods: In this retrospective study, thioredoxin (Trx), thioredoxin-interacting protein (TxNIP), and...
Background
Gastric fluid plays a key role in food digestion and drug dissolution, therefore, the amount of gastric fluid present in a fasted state may influence subsequent digestion and drug delivery. We aimed to describe intra‐ and interindividual variation in fasted gastric content volume (FGCV) and to determine the association with age, sex, and...
Patients with acute pancreatitis should be considered to be at moderate to high nutritional risk, because of the catabolic nature of the disease and the impact of the patient’s nutritional status for disease development. The principles of nutritional management of patients with acute pancreatitis have evolved over several decades. Traditionally the...
Common bile duct duplications represent exceptionally rare congenital anomalies of the biliary tract. In this case report we document an unusual variant of common bile duct duplication in a 79-year-old man who underwent a pancreaticoduodenectomy for ampullary cancer. The duplication consisted of two unseparated, completely-layered, common bile duct...
Background:
The aim of this study was to establish features of inflammation in histologically normal gallbladders with gallstones and compare the expression of inflammatory markers in acutely and chronically inflamed gallbladders.
Methods:
Immunohistochemistry was performed on formalin-fixed paraffin-embedded gallbladders for tumor necrosis fact...
Background: Diabetes mellitus is a significant modulator of postoperative outcomes and is an important risk factor in the patient selection process. We aimed to investigate the effect of diabetes mellitus and use of insulin on outcomes after colorectal resection using a national cohort.
Methods: Adults with a recorded colorectal resection in Englan...
Aims
Cytological classification systems provide a standardised interpretation framework for reporting cytological specimens. Three well-known classification systems can be applied when reporting pancreatic cytology. This study aimed to compare the accuracy of these classification systems (C1–C5 system, the Papanicolaou system and the WHO classifica...
Background and Aims
Decoding pancreatic ductal adenocarcinoma heterogeneity and the consequent therapeutic selection remains a challenge. We aimed to characterize epigenetically regulated pathways involved in pancreatic ductal adenocarcinoma progression.
Methods
Global DNA methylation analysis in pancreatic cancer patient tissues and cell lines wa...
Background
Gastric fluid plays a key role in food digestion and drug dissolution, therefore, the amount of gastric fluid present in a fasted state may influence subsequent digestion and drug delivery. We aimed to describe intra- and interindividual variation in fasted gastric content volume (FGCV) and to determine the association with age, sex, and...
Enhanced recovery after surgery” is a multimodal effort to control perioperative pathophysiology and improve outcome. However, despite advances in perioperative care, postoperative complications and the need for hospitalisation and prolonged recovery continue to be challenging. This is further complicated by procedure-specific and patient-associate...
The presence of inhibitory immune cells and difficulty in generating activated effector T cells remain obstacles to development of effective cancer vaccines. We designed a vaccine regimen combining human telomerase reverse transcriptase (hTERT) peptides with concomitant therapies targeting regulatory T cells (Tregs) and cyclooxygenase-2 (COX2)-medi...
Background:
Despite being a commonly performed surgical procedure, pain management for appendicectomy is often neglected because of insufficient evidence on the most effective treatment options.
Objective:
To provide evidence-based recommendations by assessing the available literature for optimal pain management after appendicectomy.
Design and...
Appendicoliths can drop into the peritoneal cavity during the course of an appendicectomy, or more commonly as a result of perforated appendicitis. We report the case of a patient with a history of recurrent retrohepatic abscesses over 7-year period due to a retained appendicolith and review the literature on perihepatic abscesses caused by retaine...
ESPEN practical guideline on clinical nutrition in acute and chronic pancreatitis
Marianna Arvanitakis
Johann Ockenga
Mihailo Bezmarevic
Luca Gianotti
Željko Krznarić
Dileep N. Lobo
Christian Löser
Christian Madl
Remy Meier
Mary Phillips
Henrik Højgaard Rasmussen
Jeanin E. Van Hooft
Stephan C. Bischoff
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Published:December 27, 2023DOI:https...
Background
While opioid analgesics are often necessary for the management of acute postoperative pain, appropriate prescribing practices are crucial to avoid harm. The aim was to investigate the changes in the proportion of people receiving initial opioid prescriptions after hospital discharge following colectomy, and describe trends and patterns i...
Background
Burnout arising from chronic work-related stress is endemic among surgeons in the UK. Identification of contributory and modifiable psychosocial work characteristics could inform risk reduction activities.
Aims
We aimed to assess the extent to which surgeons’ psychosocial working conditions met aspirational Management Standards delineat...
One of the most disheartening situations in abdominal surgery is having a patient who, after initially appearing to be doing well, develops abdominal distension and vomiting and requires intravenous fluids or parenteral nutrition. The resulting postoperative ileus may last for days to weeks and is a form of intestinal failure. Some surgeons suggest...
Polymeric immunoglobulin receptor (PIGR) has a major role in mucosal immunity as a transporter of polymeric immunoglobulin across the epithelial cells. The aim of this study was to determine the effect of PIGR on cellular behaviours and chemo-sensitivity of MCF7 and MDA-MB468 breast cancer cell lines. Basal levels of PIGR mRNA and protein expressio...
The procedure‐specific postoperative pain management (PROSPECT) working group develops evidence‐based pain management recommendations. PROSPECT methodology is unique and rigorous. However, several limitations were recognised that needed to be addressed, and several new factors were identified that improved PROSPECT methodology. The aim of this arti...
Background
Evidence suggests that physical fitness interventions, mental health support and nutritional advice before surgery (prehabilitation) could reduce hospital stay and improve quality of life of patients with cancer. In this study we captured the opinions of a group of patients with cancer undergoing these interventions after treatment to di...
Background
Serum albumin concentrations are frequently used to monitor nutritional therapy in the hospital setting but supporting studies are largely lacking. Within this secondary analysis of a randomized nutritional trial (EFFORT), we assessed whether nutritional support affects short-term changes in serum albumin concentrations and whether an in...
S Liu A Athar D Quach- [...]
Jonathan Penm
Prescription of modified-release opioids for acute postoperative pain is widespread despite evidence to show their use may be associated with an increased risk of adverse effects. This systematic review and meta-analysis aimed to examine the available evidence on the safety and efficacy of modified-release, compared with immediate-release, oral opi...
Background:
This is Part 3 of the first consensus guidelines for optimal care of patients undergoing emergency laparotomy using an enhanced recovery after surgery (ERAS) approach. This paper addresses organizational aspects of care.
Methods:
Experts in management of the high-risk and emergency general surgical patient were invited to contribute...
Background:
This is Part 2 of the first consensus guidelines for optimal care of patients undergoing emergency laparotomy (EL) using an Enhanced Recovery After Surgery (ERAS) approach. This paper addresses intra- and postoperative aspects of care.
Methods:
Experts in aspects of management of high-risk and emergency general surgical patients were...
This retrospective cohort study on adults undergoing colectomy from 2010 to 2019 used linked primary (Clinical Practice Research Datalink), and secondary (Hospital Episode Statistics) care data to determine the prevalence of persistent postoperative opioid use following colectomy, stratified by pre-admission opioid exposure, and identify associated...
Background:
Malnutrition is a risk-factor for adverse postoperative outcomes. This systematic review and meta-analysis evaluated the impact of post-discharge oral nutritional supplements (ONS) on outcomes in patients undergoing gastrointestinal surgery.
Methods:
The Medline and Embase databases were searched for randomised clinical trials in pat...
Background & aims:
Chronic pancreatitis results in irreversible pancreatic dysfunction and malnutrition which, alongside excess alcohol intake, can increase the risk of low bone density. Osteoporosis increases the risk of fractures and chronic bone pain, reduces quality of life, and poses considerable costs to healthcare. Despite this, there remai...
The first edition of this book was published in 2013 with the aim of improving understanding and clinical practice in the field of fluid and electrolyte therapy. Studies at that time suggested that, even though fluid and electrolyte preparations are the most commonly prescribed medications in hospitals, management of fluid and electrolyte disorders...
Introduction:
Due to the shorter half-life as compared with albumin, serum prealbumin concentrations have been proposed to be useful nutritional biomarkers for the assessment of patients at nutritional risk. In a post-hoc analysis of patients at nutritional risk from a randomized-controlled nutritional trial, we therefore tested the hypothesis tha...
Preoperative nutrition status is an important determinant of surgical outcomes, yet malnutrition assessment is not integrated into all surgical pathways. Given its importance and the high prevalence of malnutrition in patients undergoing surgical procedures, preoperative nutrition screening, assessment, and intervention are needed to improve postop...
Background:
Despite the 2015 Montgomery Ruling highlighting key requisites for informed consent, little has changed to modernise data-sharing and documentation of the consent process. It can be difficult to gauge patient understanding and address all patient concerns in time-limited appointments. We aimed to assess the feasibility of a digital inf...
Background
Save for the contribution of Charles McBurney, who described his eponymous point and the appendicectomy incision, the history of appendicectomy is largely unknown among the medical profession. This review traces the history from the first anatomical depiction of the appendix to the development of open appendicectomy and the recent minima...
Prehabilitation comprises multidisciplinary healthcare interventions, including exercise, nutritional optimisation, and psychological preparation, which aim to dampen the metabolic response to surgery, shorten the period of recovery, reduce complications, and improve the quality of recovery and quality of life. This editorial evaluates the potentia...
Background:
Burnout is endemic in surgeons in the UK and linked with poor patient safety and quality of care, mental health problems, and workforce sustainability. Mechanisms are required to facilitate the efficient identification of burnout in this population. Multi-item measures of burnout may be unsuitable for this purpose owing to assessment b...
Background Burnout is endemic in surgeons in the UK and linked with poor patient safety and quality of care, mental health problems, and workforce sustainability. Mechanisms are required to facilitate the efficient identification of burnout in this population. Multi-item measures of burnout may be unsuitable for this purpose owing to assessment bur...
High expression of polymeric immunoglobulin receptor (PIGR) in breast cancer is associated with increased 5-year survival rate. However, the factors influencing PIGR expression in breast cancer have not been elucidated. The aim of this study was to determine the role of macrophages and cytokines affecting expression of PIGR in two breast cancer cel...
A 24-year-old woman with anxiety, depression, and emotionally unstable personality disorder was referred to a tertiary center 2 weeks after ingesting multiple foreign bodies. She had undergone a laparoscopic cholecystectomy and a laparotomy for extraction of ingested foreign bodies several years ago. A sagittal CT scan view showed a ballpen and a h...
Background
Bed rest (BR) reduces whole‐body insulin‐stimulated glucose disposal (GD) and alters muscle fuel metabolism, but little is known about metabolic adaptation from acute to chronic BR nor the mechanisms involved, particularly when volunteers are maintained in energy balance.
Methods
Healthy males (n = 10, 24.0 ± 1.3 years), maintained in e...
Introduction: Elective surgery induces skeletal muscle wasting driven by an imbalance between muscle protein synthesis and muscle protein breakdown. From examination of diverse stable isotope tracer techniques, the dynamic processes driving this imbalance are unclear. This meta-analysis aimed to investigate the mechanistic driver(s) of postoperativ...
With prolonged pandemic conditions, and emerging evidence but persisting low awareness of the importance of nutritional derangements, ESPEN has promoted in close collaboration with World Health Organization-Europe a call for papers on all aspects relating COVID-19 and nutrition as well as nutritional care, in the Society Journals Clinical Nutrition...
Background
Although recommendations exist for patients to be offered a post-operative helpline or telephone follow-up appointment at discharge after cholecystectomy, implementation of these is resource-intensive. Whilst the benefits of telephone follow-up are well documented, the use of digital modalities is less so. We aimed to identify if digital...
Introduction
Metformin is the first-line treatment in patients with Type 2 diabetes. However, controversy exists regarding its role in reducing the risk of pancreatic cancer or improving pancreatic cancer survival in patients with Type 2 diabetes or chronic pancreatitis. This systematic review aimed to define the risk of pancreatic cancer and survi...
Introduction
Inflammation induces changes in muscle protein turnover and mass and dampens insulin stimulated glucose disposal and oxidation. Limited information is available regarding the molecular regulation of these events. We determined the acute effects of lipopolysaccharide (LPS) infusion on targeted muscle mRNA expression.
Methods
Seven heal...
Introduction
The collection of Patient Reported Outcome Measures (PROMs) has many benefits for clinical practice. However, there are also many barriers that prevent them from becoming a part of routine clinical care. The aim of this feasibility study was to pilot the use of a digital platform to facilitate the routine collection of pre- and postope...
Introduction
Bed-rest (BR) reduces whole-body insulin-stimulated glucose disposal (GD) and alters muscle fuel metabolism. However, little is known about metabolic adaptation from acute to chronic BR, particularly when volunteers are maintained in energy balance.
Methods
Healthy males (n=10, 24±1.25 years) maintained in energy balance underwent 3 d...
Introduction
β-catenin is a protein molecule of the E-cadherin/catenin adhesion complex that maintains epithelial cell-cell adhesion and intracellular signalling. The mutation and overexpression of β-catenin leads to cancer, including pancreatic ductal adenocarcinoma (PDAC). FLYWCH1 is a newly identified protein with zinc-finger type DNA-binding do...
Introduction
Cholecystectomy is one of many operations performed nationally for which routine postoperative follow-up is no longer offered. National guidelines recommend patients are offered a postoperative helpline or telephone follow-up (TFU) appointment at discharge. Whilst the benefits of TFU are well documented, the use of digital modalities i...
Introduction
Despite the 2015 Montgomery Ruling highlighting key requisites for informed consent, little has changed to modernise data-sharing and documentation of the consent process. Although many practitioners provide supplementary information to support consent consultations it can be difficult to gauge patient understanding and address all pat...
Introduction
Malnutrition is a risk factor for adverse postoperative outcomes. This systematic review and meta-analysis aimed to evaluate the impact of post-discharge oral nutritional supplements (ONS) on outcomes in patients undergoing gastrointestinal surgery.
Methods
The Medline, Embase and Cochrane databases were searched for randomised contro...
Introduction
Little is known about the role of microRNAs (miRNAs) in rewiring the metabolism within tumours and adjacent non-tumour bearing normal tissue and their potential in cancer therapy. This study aimed to investigate the relationship between deregulated miRNAs and metabolic components in murine duodenal polyps and non-polyp-derived organoid...
Background:
This aim of this study was to provide an updated meta-analysis comparing antibiotic therapy with appendicectomy in adults (16 years or older) with uncomplicated acute appendicitis.
Methods:
A search for randomized clinical trials comparing antibiotic therapy with appendicectomy in adults with uncomplicated acute appendicitis from inc...
Modified-release opioid tablets were introduced into surgical practice in the belief that they provided superior pain relief and reduced nursing workload, and they rapidly became embedded into many perioperative pathways. Although national and international guidelines for the management of postoperative pain now advise against the use of modified-r...
Surgical patients are at an increased risk of negative outcomes if they are malnourished or at risk of malnutrition preoperatively. Optimisation of nutritional status should be a focus throughout the perioperative continuum to promote improved surgical outcomes. Enhanced Recovery after Surgery (ERAS) protocols are increasingly applied in the surgic...
Background
The collection of patient-reported outcome measures (PROMs) has many benefits for clinical practice. However, there are many barriers that prevent them from becoming a part of routine clinical care. The aim of this feasibility study was to pilot the use of a digital platform to facilitate the routine collection of pre- and post-operative...
Opioids have a vital role in alleviating pain from cancer and surgery. Despite good intentions, it is now recognised that the original WHO Cancer Pain Relief guidance from 1986, in which opioids were classified as either weak or strong, has been both inadvertently and purposefully misused, thereby contributing to harm from opioid use and misuse. Ho...
Background
Screening for malnutrition upon hospital admission is the first crucial step for proper nutritional assessment and treatment. While several nutritional screening and assessment instruments exist, there is a lack of head-to-head validation of these instruments. We studied the ability of five different nutrition screening and assessment in...
Background
This consensus statement was developed because there are concerns about the appropriate use of opioids for acute pain management, with opposing views in the literature. Consensus statement on policies for system-level interventions may help inform organisations such as management structures, government agencies and funding bodies.
Metho...
Background:
Historically, admission serum albumin concentrations have been considered useful biochemical markers for nutrition assessment. However, there is a lack of randomised trial data investigating whether low albumin concentrations are helpful for identifying patients benefitting from nutritional support.
Methods:
This study was a secondar...
Understanding how neurohormonal gut-brain signaling regulates appetite and satiety is vital for the development of therapies for obesity. However, reported brain areas associated with appetite or satiety regulators show inconsistency across functional neuroimaging studies. The aim of this study was to systematically assess the convergence of brain...
Background and aims
Elective surgery induces skeletal muscle wasting driven by an imbalance between muscle protein synthesis and breakdown. From examination of diverse stable isotope tracer techniques, the dynamic processes driving this imbalance are unclear. This meta-analysis aimed to elucidate the mechanistic driver(s) of postoperative protein c...
Background & Aims
The Global Leadership Initiative on Malnutrition (GLIM) recently suggested specific criteria to standardize the diagnosis of malnutrition. There is need for validation of these criteria regarding response to nutrition treatment. Our aim was to validate modified GLIM (mGLIM) criteria among medical inpatients at risk of disease rela...
Little is known about the role of microRNAs (miRNAs) in rewiring the metabolism within tumours and adjacent non-tumour bearing normal tissue and their potential in cancer therapy. This study aimed to investigate the relationship between deregulated miRNAs and metabolic components in murine duodenal polyps and non-polyp-derived organoids (mPOs and m...
Background: In this systematic review we aimed to appraise the evidence relating to the measurement properties of unidimensional tools to quantify pain after surgery. Furthermore, we wished to identify the tools used to assess interference of pain with functional recovery. Methods: Four electronic sources (MEDLINE, Embase, CINAHL, PsycINFO) were se...
Importance
Uncontrolled and indiscriminate prescribing of opioids has led to an opioid crisis that started in North America and spread throughout high-income countries. The aim of this narrative review was to explore some of the current issues surrounding the use of opioids in the perioperative period, focusing on drivers that led to escalation of...