Incidence, epidemiology, and outcomes of acute allograft rejection following liver transplantation in Australia.

Acute allograft rejection is a well-known complication of liver transplantation (LT). The incidence, epidemiology, and outcomes of acute rejection have not been well described in Australia. We retrospectively studied consecutive adults who underwent deceased donor LT at a single center between 2010 and 2020. Donor and recipient data at the time of LT and recipient outcomes were collected from a prospective LT database. Liver biopsy reports were reviewed, and only a graft's first instance of biopsy-proven acute rejection was analyzed. During the study period, 796 liver transplants were performed in 770 patients. Biopsy-proven rejection occurred in 34.9% of transplants. There were no significant changes in the incidence of rejection over time (linear trend p =0.11). The median time to the first episode of rejection was 71 days after LT: 2.2% hyperacute, 50.4% early (≤90 d), and 47.5% late rejection (>90 d). Independent risk factors for rejection were younger recipient age at transplant (aHR 0.98 per year increase, 95% CI: 0.97-1.00, p =0.01), and ABO-incompatible grafts (aHR 2.55 vs. ABO-compatible, 95% CI: 1.27-5.09, p <0.01) while simultaneous multiorgan transplants were protective (aHR 0.21 vs. LT only, 95% CI: 0.08-0.58, p <0.01). Development of acute rejection (both early and late) was independently associated with significantly reduced graft (aHR 3.13, 95% CI: 2.21-4.42, p <0.001) and patient survival (aHR 3.42, 95% CI: 2.35-4.98, p <0.001). In this 11-year Australian study, acute LT rejection occurred in 35%, with independent risk factors of younger recipient age and ABO-incompatible transplant, while having a simultaneous multiorgan transplant was protective. Acute rejection was independently associated with reduced graft and patient survival after adjustment for other factors.

Epidemiology, characteristics, and outcomes of patients with acute-on-chronic liver failure in Australia.

BACKGROUND AND AIM: Acute-on-chronic liver failure (ACLF) is distinct from acute decompensation (AD) of cirrhosis in its clinical presentation, pathophysiology, and prognosis. There are limited published Australian ACLF data. METHODS: We performed a single-center retrospective cohort study of all adults with cirrhosis admitted with a decompensating event to a liver transplantation (LT) centre between 2015 and 2020. ACLF was defined using the European Association for the Study of the Liver-Chronic Liver Failure (EASL-CLIF) definition while those who did not meet the definition were classified as AD. The primary outcome of interest was 90-day LT-free survival. RESULTS: A total of 615 patients had 1039 admissions for a decompensating event. On their index admission, 34% (209/615) of patients were classified as ACLF. Median admission model for end-stage liver disease (MELD) and MELD-Na scores were higher in ACLF patients compared with AD (21 vs 17 and 25 vs 20 respectively, both P < 0.001). Both the presence and severity of ACLF (grade ≥ 2) significantly predicted worse LT-free survival compared with patients with AD. The EASL-CLIF ACLF score (CLIF-C ACLF), MELD and MELD-Na scores performed similarly in predicting 90-day mortality. Patients with index ACLF had a higher risk of 28-day mortality (28.1% vs 5.1%, P < 0.001) and shorter times to readmission compared with those with AD. CONCLUSION: ACLF complicates over a third of hospital admissions for cirrhosis with decompensating events and is associated with a high short-term mortality. The presence and grade of ACLF predicts 90-day mortality and should be identified as those at greatest risk of poor outcome without intervention such as LT.

Systematic Review of the Use of the 6-Minute Walk Test in Measuring and Improving Prognosis in Patients With Ischemic Heart Disease.

Introduction: The 6-minute walk test (6MWT) has been used for over 30 years to assess exercise capacity in patients with respiratory disease, and more recently, in those with heart failure. However, despite being a simple and reproducible test of real-world exercise capacity, its use in patients with ischemic heart disease (IHD) is less well accepted. We sought to review systematically the evidence surrounding the 6MWT in IHD. Methods: We searched the Medline, PubMed, Embase, and Scopus databases for the following key terms: "six minute walk test/6 minute walk test/6MWT" and "angina/coronary artery disease/coronary disease/IHD/ischemic heart disease." We followed Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines to select publications for full-text review and analyzed the collated data. Results: A total of 1228 unique papers were found, of which 71 were chosen for full-text review and 37 for detailed analysis. Most (23) concerned the effect on 6MWT distance (6MWTd) of cardiac rehabilitation, with measurements commenced after an intervention (acute myocardial infarction, n = 4; open heart surgery (OHS), n = 5; percutaneous coronary intervention (PCI), n = 3; or other, n = 11). The effect on 6MWTd of OHS was investigated in 6 studies and of PCI in one study. The 6MWT is a useful measurement of physical capacity; data are limited on its ability to assess benefit following PCI. Conclusions: The 6MWT has been studied inconsistently in IHD. The majority of data are on patients before and after CR. Data are limited concerning the effect on 6MWTd of OHS or PCI. The available data support the 6MWT as a measure of change in performance status following coronary intervention. More work is required to confirm this hypothesis.

Contexte: Le test de marche de 6 minutes (TM6) est utilisé depuis plus de 30 ans pour évaluer la tolérance à l'effort chez les patients atteints de maladies respiratoires, et maintenant également utilisé auprès des patients atteints d'insuffisance cardiaque. Toutefois, bien qu'il s'agisse d'un test simple et facile à reproduire de la tolérance à l'effort en contexte réel, son utilisation est moins bien acceptée auprès des patients présentant une cardiopathie ischémique (CI). Notre objectif était de réaliser une revue systématique des données probantes au sujet du TM6 chez les patients atteints de CI. Méthodologie: Nous avons effectué une recherche dans les bases de données Medline, PubMed, Embase et Scopus en utilisant les mots-clés suivants : « six minute walk test/6 minute walk test/6MWT ¼ [test de marche de six minutes/test de marche de 6 minutes/TM6] et « angina/coronary artery disease/coronary disease/IHD/ischemic heart disease ¼ [angine/coronaropathie/CI/cardiopathie ischémique]. Nous avons suivi les lignes directrices « Preferred Reporting Items for Systematic Reviews and Meta-analysis ¼ pour sélectionner les articles à soumettre à un examen du texte intégral et nous avons analysé les données obtenues. Résultats: Au total, 1 228 articles différents ont été repérés; 71 d'entre eux ont été sélectionnés pour un examen du texte intégral, puis 37 ont été soumis à une analyse plus détaillée. La plupart de ces articles (23) portaient sur l'effet de la distance au TM6 (dTM6) sur la réadaptation cardiaque, et les mesures débutaient après une intervention (infarctus aigu du myocarde, n = 4; chirurgie à cœur ouvert [CCO], n = 5; intervention coronarienne percutanée [ICP], n = 3; autre type d'intervention, n = 11). L'effet sur la dTM6 d'une CCO a été évalué dans six études et l'effet d'une ICP a été évalué dans une étude. La dTM6 est une mesure utile de la tolérance à l'effort, mais les données restent limitées sur sa capacité à évaluer les effets bénéfiques d'une ICP. Conclusions: L'utilisation du TM6 n'a pas été étudiée de façon systématique en contexte de CI. La majorité des données portent sur les patients avant et après la réadaptation cardiaque, mais il y a peu de données probantes sur l'effet d'une CCO ou d'une ICP sur la dTM6. Les données dont on dispose corroborent l'utilisation du TM6 comme mesure d'un changement des capacités après une intervention coronarienne. D'autres travaux de recherche devront être réalisés pour confirmer cette hypothèse.

Overtime claiming among Australian doctors-in-training.

Objective To quantify patterns of overtime among doctors-in-training in New South Wales and to explore the reasons doctors-in-training cite for not claiming overtime worked. Methods A confidential online self-reporting survey was conducted of post-graduate doctors-in-training, working in hospitals in NSW, from post-graduate year 1 through to completion of specialist training. Questions sought to determine the average amount of overtime worked, overtime claiming patterns, and reasons why overtime was not claimed. Comparisons were made by level of training and specialty training pathway. Results A total of 1351 valid responses were received. Unrostered overtime was extremely common, as was underpayment for work completed. Though 73.5% of respondents reported working at least 5 h of unrostered overtime per fortnight, only 15.6% of respondents reported claiming all their unrostered overtime, and among those who did claim overtime, only 45.5% reported being paid the amount in full. Common reasons for not claiming overtime included workplace cultural expectations (37.0%), and overtime not falling under approved reasons (32.6%). There were statistically significant differences (P < 0.001) in all response categories between critical care, physician and surgical training pathways. Conclusions The survey data demonstrated a significant disconnect between expectations and reality of working hours among doctors-in-training. This is indicative of concerns regarding loss of income, impaired ability to plan workforce allocation due to hidden workload, and possibly impaired wellbeing.

Australian patient perspectives on the impact of gout.

OBJECTIVE: To explore the perceptions of patients toward the impacts of gout, in an Australian context. METHODS: Semi-structured interviews were conducted with Australian patients with gout (n = 17). Interviews focused on the impacts of gout on patients' day-to-day lives. The interviews were audio-recorded, transcribed verbatim and analyzed thematically by 2 independent reviewers. RESULTS: Patients with gout reported variable but significant impacts of gout on their daily lives. Patients were primarily concerned with the pain and poor mobility associated with gout flares. Participants also reported significant social impacts related to their inability to attend events and the need for family and friends to look after them. Productivity was also negatively affected due to pain and poor mobility, and emotional wellbeing was reduced both by the symptoms of gout flares and anxiety between flares. Diet, daily planning, hobbies, exercise, sleep and selection of attire were also reported as being impacted by their gout. CONCLUSIONS: In Australia, gout has significant and preventable impacts beyond the physical symptoms of gout flares, across a variety of domains. By identifying patients' key concerns, this can potentially aid clinicians to tailor gout education and encourage medication adherence, in order to improve gout management.