Holographically fabricated out-of-plane blazed gratings and channel waveguides in silica for integrated free-space beam delivery.

Grating couplers are widely used in integrated optics to generate free-space beams and facilitate localized interactions with systems such as atom or ion traps. However, etched devices often exhibit small-scale inconsistencies; exacerbated by the high index contrast of the devices, this can lead to phase errors, limiting devices to a sub-millimeter scale. Here we present the first demonstration, to our knowledge, of tilted, out-of-plane blazed gratings in planar silica fabricated by UV inscription using a 213 nm laser.

Statin, aspirin and metformin use and risk of hepatocellular carcinoma related outcomes following liver transplantation: A retrospective study.

Background: Liver transplantation (LT) is a potentially curative therapy for patients with hepatocellular carcinoma (HCC). HCC-recurrence following LT is associated with reduced survival. There is increasing interest in chemoprophylaxis to improve HCC-related outcomes post-LT.

Rotational thromboelastometry predicts future bleeding events in patients with cirrhosis.

Background And Aims: Patients with cirrhosis of the liver are in a delicate state of rebalanced haemostasis and are at risk of developing both bleeding and thrombotic complications. Conventional haemostatic tests are unable to predict bleeding and thrombosis in these patients. We aimed to explore the role of Rotational Thromboelastometry (ROTEM) in predicting bleeding and thrombotic events in patients with cirrhosis.

Surveillance MRI is associated with improved survival in patients with primary sclerosing cholangitis.

Background: The benefits of regular surveillance imaging for cholangiocarcinoma in patients with primary sclerosing cholangitis (PSC) are unclear. Hence, we aimed to evaluate the impact of regular magnetic resonance cholangiopancreatography (MRCP) on outcomes of patients with PSC in Australia, where the practice of MRCP surveillance is variable.

Methods: The relationship between MRCP surveillance and survival outcomes was assessed in a multicenter, retrospective cohort of patients with PSC from 9 tertiary liver centers in Australia.

Reversing malnutrition and low muscle strength with targeted enteral feeding in patients awaiting liver transplant: A randomized controlled trial.

Background And Aims: Most patients with decompensated cirrhosis fail to meet their nutrition targets. The impact of nasogastric feeding (NGF) on malnutrition in cirrhosis remains unknown. This study aims to assess the impact of pretransplant NGF on pre-liver transplant and post-liver transplant outcomes.

Branched-chain amino acid supplementation does not improve measures of sarcopenia in cirrhosis: results of a randomised controlled trial.

Background: Sarcopenia is associated with adverse outcomes in cirrhosis. Branched-chain amino acids (BCAA) target several pathways that lead to muscle loss in this population.

Aims: We aimed to evaluate the impact of BCAA supplementation on sarcopenia measures in patients with cirrhosis.

Drug-induced liver injury from selective androgen receptor modulators, anabolic-androgenic steroids and bodybuilding supplements in Australia.

Background: Reports of DILI due to herbal and dietary supplements have been increasing over time.

Aims: To characterise clinical, laboratory and histopathological phenotypes and outcomes of drug-induced liver injury (DILI) due to anabolic-androgenic steroids (AAS), selective androgen receptor modulators (SARMs), and bodybuilding supplements (BBS) in Australia.

Methods: Retrospective case series.

Metabolic-associated fatty liver disease and hepatocellular carcinoma: a prospective study of characteristics and response to therapy.

Background And Aim: The rising incidence of hepatocellular carcinoma (HCC) in Australia is related to increasing rates of metabolic-associated fatty liver disease (MAFLD). This study aimed to prospectively characterize the metabolic profile, lifestyle, biometric features, and response to treatment of HCC patients in an Australian population.

Method: Multicenter prospective cohort analysis of newly diagnosed HCC patients at six multidisciplinary team meetings over a 2-year period.

An updated systematic review and meta-analysis of randomised controlled trials on the effects of urate-lowering therapy initiation during a gout flare.

Background: There is uncertainty about the optimal time to start urate-lowering therapy (ULT) in the setting of a gout flare. The aim was to perform a systematic review and meta-analysis of randomised controlled trials (RCTs) assessing the effects of ULT initiation during a gout flare.

Methods: This systematic review was conducted in accordance with PRISMA methodology.

Portal Hypertension in Malnutrition and Sarcopenia in Decompensated Cirrhosis-Pathogenesis, Implications and Therapeutic Opportunities.

Malnutrition and sarcopenia are highly prevalent in patients with decompensated cirrhosis and are associated with poorer clinical outcomes. Their pathophysiology is complex and multifactorial, with protein-calorie malnutrition, systemic inflammation, reduced glycogen stores and hormonal imbalances all well reported. The direct contribution of portal hypertension to these driving factors is however not widely documented in the literature.

Redefining Nutritional Requirements in End-Stage Liver Disease: Towards a Personalized Approach.

Malnutrition is ubiquitous in cirrhotic patients presenting for liver transplant (LT). Providing an appropriate energy prescription is fundamental to effective nutrition therapy. We aimed to compare measured energy expenditure (mEE) with predicted energy expenditure (pEE) in patients awaiting LT and determine clinical factors associated with mEE.

Atherosclerosis on CT coronary angiography and the risk of long-term cardiovascular events after liver transplantation.

Computed tomography coronary angiography (CTCA) is increasingly utilized for preoperative risk stratification before liver transplantation (LT). We sought to assess the predictors of advanced atherosclerosis on CTCA using the recently developed Coronary Artery Disease-Reporting and Data System (CAD-RADS) score and its impact on the prediction of long-term major adverse cardiovascular events (MACE) following LT. We conducted a retrospective cohort study of consecutive patients who underwent CTCA for LT work-up between 2011 and 2018.

Transjugular intrahepatic portosystemic shunt insertion improves muscle mass but not muscle function or frailty measures.

Introduction: Sarcopenia in cirrhosis is associated with poor outcomes. While transjugular intrahepatic portosystemic shunt (TIPS) insertion improves radiological measures of muscle mass, its impact on muscle function, performance and frailty has not been evaluated.

Methods: Patients with cirrhosis referred for TIPS were prospectively recruited and followed for 6 months.

Outcomes of patients with hepatorenal syndrome undergoing liver transplantation in the era of terlipressin.

Background: The efficacy of terlipressin in improving pre-liver transplant renal function in hepatorenal syndrome (HRS) has been well documented, however, its impact on post-transplant renal function remains poorly described. This study aims to describe the impact of HRS and terlipressin on post-liver transplant renal function and survival.

Methods: A single-centre, retrospective, observational study was conducted to identify post-transplant outcomes of patients diagnosed with HRS undergoing liver transplant (HRS cohort) and those undergoing transplant for non-HRS, non-hepatocellular carcinoma cirrhotic indications (comparator cohort) between January 1997 and March 2020.

Testosterone is lower in men with non-alcoholic fatty liver disease and alcohol-related cirrhosis and is associated with adverse clinical outcomes.

Background/aims: Low serum testosterone is common in cirrhotic men, but the impact of disease aetiology remains uncertain. This study compares serum total testosterone (TT) levels by disease aetiology and assesses its prognostic value.

Methods: Single-centre retrospective study of cirrhotic men who had TT levels measured between 2002 and 2020.

The Hidden Epidemic: The Prevalence and Impact of Concurrent Liver Diseases in Patients Undergoing Liver Transplantation in Australia and New Zealand.

Unlabelled: Prevalence of concurrent liver diseases among liver transplant recipients and impact on posttransplant outcomes are unknown.

Methods: This retrospective study included adult liver transplants between January 1' 1985' and December 31' 2019' from the Australian and New Zealand Liver and Intestinal Transplant Registry. Up to 4 liver disease causes were recorded for each transplant; concurrent liver diseases were defined as >1 liver disease indication for transplantation, excluding hepatocellular carcinoma.

Radiation exposure from radiological procedures in liver transplant candidates with hepatocellular carcinoma.

Purpose: Candidates for liver transplantation (LT) with hepatocellular carcinoma (HCC) undergo a large number of diagnostic and interventional radiology procedures. A significant proportion of such procedures involve ionizing radiation with increased lifetime risk of cancer. The objective of our study was to review LT candidates with HCC to quantify ionizing radiation doses from different radiology procedures performed at a single transplant center.

Development and validation of the Gender-Equity Model for Liver Allocation (GEMA) to prioritise candidates for liver transplantation: a cohort study.

Background: The Model for End-stage Liver Disease (MELD) and its sodium-corrected variant (MELD-Na) have created gender disparities in accessing liver transplantation. We aimed to derive and validate the Gender-Equity Model for liver Allocation (GEMA) and its sodium-corrected variant (GEMA-Na) to amend such inequities.

Methods: In this cohort study, the GEMA models were derived by replacing creatinine with the Royal Free Hospital glomerular filtration rate (RFH-GFR) within the MELD and MELD-Na formulas, with re-fitting and re-weighting of each component.

Alcohol intake is associated with a decreased risk of developing primary biliary cholangitis.

Background: Primary biliary cholangitis (PBC) is a chronic progressive liver disease of unknown aetiology characterised by immune-mediated destruction of small and medium-sized intrahepatic bile ducts. There are few well-established risk factors and epidemiological studies are needed to further evaluate the pathogenesis of the disease.

Aim: To evaluate the relationship between alcohol intake, smoking and marijuana use with PBC development.

Rate of early hospital readmission amongst cirrhotic patients is high in Australia: experience from a single liver transplant centre.

Background And Aims: The 30-day hospital readmission rate in cirrhotic patients has been demonstrated to be up to 40% in international studies, but is not well studied in Australia. The aim of the current study was to report on the rate and cause of 30-day hospital readmission from a single liver transplant referral centre, including a cost analysis of readmissions.

Methods: This was a retrospective study of consecutive cirrhotic patients admitted to a liver transplant centre in Victoria, Australia, between 1 January 2019 and 31 December 2019.

Liver stiffness (Fibroscan®) is a predictor of all-cause mortality in people with non-alcoholic fatty liver disease.

Background And Aims: Progressive liver fibrosis related to non-alcoholic fatty liver disease (NAFLD) is associated with all-cause and liver-related mortality. We assessed vibration-controlled transient elastography (VCTE) as a predictor of mortality.

Method: Data from patients who underwent VCTE for NAFLD at four large health services in Victoria, Australia between the years 2008 and 2019 were linked to state-wide data registries.