This paper presents the case of a male dialysis patient, with generalised epilepsy, who experienced complications after starting medium cut-off (MCO) dialysis. While receiving haemodiafiltration, the patient’s epilepsy had been relatively well controlled using two antiseizure medications (brivaracetam and sodium valproate). However, the patient’s seizure frequency increased when he was changed to MCO dialysis. MCO is a new dialysis method that has been developed to allow for better clearance of uraemic toxins through its larger pore size. We hypothesise that using the highly permeable MCO membrane changed the seizure threshold by an unknown mechanism. This is the first reported case to observe increased seizure frequency in a patient receiving MCO dialysis. The case highlights the need for caution when prescribing dialysis methods to patients with epilepsy.
BackgroundThis study aimed to assess the impact of a standardised rapid response systems (the Between the Flags (BTF)) implemented across New South Wales (NSW), Australia, among female patients.MethodsWe conducted an interrupted time series (2007–2013) population-based linkage study including 5 114 170 female patient (≥18 years old) admissions in all 232 public hospitals in NSW. We studied changes in levels and trends of patient outcomes after BTF implementation among four age groups of female patients.ResultsBefore the BTF system introduction (2007–2009), for the female patients as a whole, there was a progressive decrease in rates of in-hospital cardiopulmonary arrest (IHCA), IHCA-related mortality and hospital mortality for female patients. However, there were no changes in deaths in low-mortality diagnostic-related groups (DLMDRGs), IHCA survival to discharge and 1-year post-discharge mortality after surviving an IHCA. Only the female patients aged 55 years and older showed the same results as the whole sample. After the BTF programme (2010–2013), the same trends (except for DLMDRG) continued for female patients as a whole and for those aged 55 years or older. There was a significant reduction in DLMDRG among female patients aged 35–54 years (p<0.001), those aged 75 years and over (p<0.05) and female patients as a whole (p<0.05). The decreasing secular trend of surviving an IHCA to hospital discharge before the BTF system (p<0.05) among patients aged 18–34 years old was reversed after the BTF implementation (p<0.01).ConclusionsFor female patients the BTF programme introduction was associated with continued reductions in the rates of IHCA, IHCA-related mortality and hospital mortality, as well as a new reduction in DLMDRG for 35–54 years old patients and those aged 75 years and older, and increased survival for those aged 18–34 years who had suffered an IHCA.
A previously well 31-year-old woman initially presented to the emergency department with pneumonia, however, was found to be hypertensive and have new-onset cardiomegaly. She was admitted for intravenous antibiotics and concurrently a series of investigations were conducted to investigate hypertension and cardiomegaly. During the course of admission, she developed acute kidney injury and was found to have acute chronic occlusion in the abdominal aorta. She was diagnosed with catastrophic antiphospholipid syndrome. This is a rare form of antiphospholipid syndrome with a high mortality rate. Thus, it is important that clinicians are aware of this syndrome to facilitate early diagnosis and initiation of treatment.
BACKGROUND:Psittacosis is a systemic disease usually with respiratory involvement, caused by the obligate intracellular bacterium Chlamydia psittaci. Exposure to birds, the main zoonotic reservoir, is a major risk factor for infection. The spectrum of disease is highly variable, ranging from subclinical infection to severe pneumonia requiring mechanical ventilation. There is limited data on psittacosis progressing to organizing pneumonia and management of such cases. CASE PRESENTATION:A 63-year-old man was referred to a rural hospital with 11 days of fevers to 39 °C, myalgia, lethargy and several days of dry cough. After initial treatment with benzylpenicillin and doxycycline for left lower pneumonia found on CXR, the patient deteriorated with extensive bilateral consolidation on chest CT requiring mechanical ventilation. Atypical pneumonia screening was negative, however, exposure to a sick bird prior to symptom onset triggered testing for C. psittaci which was positive. Doxycycline was recommenced with minimal benefit, and organizing pneumonia was later suspected. The patient slowly improved with a weaning course of corticosteroids started after 19 days and was discharged from hospital. He unfortunately was re-admitted and died several months later. CONCLUSION:Severe pneumonia is a rare, but potentially life-threatening complication of psittacosis. We present a case of psittacosis which progressed to suspected organizing pneumonia despite appropriate antibiotics, and subsequent treatment with corticosteroids. This case suggests it may be useful to consider corticosteroids early in therapy for patients with severe psittacosis. Our paper underlines the need for further research to determine the best management of severe psittacosis to improve patient outcomes.
Objective Electronic medical records-based alerts have shown mixed results in identifying ED sepsis. Augmenting clinical patient-flagging with automated alert systems may improve sepsis screening. We evaluate the performance of a hybrid alert to identify patients in ED with sepsis or in-hospital secondary outcomes from infection. Methods We extracted a dataset of all patients with sepsis during the study period at five participating Western Sydney EDs. We evaluated the hybrid alert's performance for identifying patients with a discharge diagnosis related to infection and modified sequential sepsis-related organ functional assessment (mSOFA) score >= 2 in ED and also compared the alert to rapid bedside screening tools to identify patients with infection for secondary outcomes of all-cause in-hospital death and/or intensive care unit admission. Results A total of 118 178 adult patients presented to participating EDs during study period with 1546 patients meeting ED sepsis criteria. The hybrid alert had a sensitivity - 71.2% (95% confidence interval 68.8-73.4), specificity - 96.4% (95% confidence interval 96.3-96.5) for identifying ED sepsis. Clinician flagging identified additional alert-negative 232 ED sepsis and 63 patients with secondary outcomes and 112 alert-positive patients with infection and ED mSOFA score <2 went on to die in hospital. Conclusion The hybrid alert performed modestly in identifying ED sepsis and secondary outcomes from infection. Not all infected patients with a secondary outcome were identified by the alert or mSOFA score >= 2 threshold. Augmenting clinical practice with auto-alerts rather than pure automation should be considered as a potential for sepsis alerting until more reliable algorithms are available for safe use in clinical practice.
BACKGROUND:The NSW Clinical Excellence commission introduced the 'Between the Flags' programme, in response to the death of a young patient, as a system-wide approach for early detection and management of the deteriorating patient in all NSW hospitals. The impact of BTF implementation on the 35 larger hospitals with intensive care units (ICU) has not been reported previously.AIM:To assess the impact of 'Between the Flags' (BTF), a two-tier rapid response system across 35 hospitals with an ICU in NSW, on the incidence of in-hospital cardiac arrests and the incidence and outcome of patients admitted to an ICU following cardiac arrest and rapid response team activation.METHODS:This is a prospective observational study of the BTF registry (August 2010 to June 2016) and the Australian and New Zealand Intensive Care Society Adult Patient Database (January 2008 to December 2016) in 35 New South Wales public hospitals with an ICU. The primary outcome studied was the proportion of in-hospital cardiac arrests. Secondary outcomes included changes in the severity of illness and outcomes of cardiac arrest admissions to the ICU and changes in the volume of rapid response calls.RESULTS:The cardiac arrest rate per 1000 hospital admissions declined from 0.91 in the implementation period to 0.70. Propensity score analysis showed significant declines in ICU and hospital mortality and length of stay for cardiac arrest patients admitted to the ICU (all P < 0.001).CONCLUSIONS:The BTF programme was associated with a significant reduction in cardiac arrests in hospitals and ICU admissions secondary to cardiac arrests in 35 NSW hospitals with an ICU.
Quick Sepsis‐related Organ Failure Assessment (qSOFA) is recommended for use by the most recent international sepsis definition taskforce to identify suspected sepsis in patients outside the intensive care unit (ICU) at risk of adverse outcomes. Evidence of its comparative effectiveness with existing sepsis recognition tools is important to guide decisions about its widespread implementation.
AIM:A standardised rapid response system (RRS), called the "Between-the-Flags" (BTF) program, was implemented across a large health jurisdiction in Australia in 2010. The impact of RRS on emergency surgical admissions is unknown.METHODS:We linked the NSW Admitted Patient Data Collection (APDC) and the NSW Registry of Births, Deaths, and Marriages. We used a propensity score-based inverse-probability-weighting adjustment to estimated average treatment effects among treated subjects (prior-RRS hospitals vs prior-non-RRS hospitals) before the BTF implementation (2007-2008) and after (2010-2013).RESULTS:Before BTF, prior-RRS hospitals had a lower rate of in hospital cardiopulmonary arrests (IHCA) (4.7 vs 7.8 per 1000 admissions, P < 0.001), a lower rate of IHCA related deaths (3.0 vs 4.4 per 1000 admissions, P = 0.03) compared with patients in prior-non-RRS hospitals. There were no significant differences in overall in-hospital mortality and 30-day mortality between the two cohorts. After BTF, there were no significant differences for IHCA (4.8 vs 5.5 per 1000 admissions, P = 0.081) and related death rates (2.4 vs 2.3 per 1000 admissions, P = 0.678) between the two cohorts. Hospital mortality, 30-day mortality improved across both prior-RRS and prior-non-RRS hospitals following the BTF implementation.CONCLUSION:BTF program was associated with a significant reduction in IHCA and IHCA deaths for emergency surgical patients in prior-non-RRS hospitals but not in the prior-RRS hospitals. The overall hospital and 30-day mortality improved in both cohorts after BTF.
Sepsis remains a significant global health problem. It is a life-threatening, but poorly defined and recognized condition. Early recognition and intervention are essential to optimize patient outcomes. Automated clinical decision support systems (CDS) may be particularly beneficial for early detection of sepsis. The aim of this study was to use retrospective data to develop and evaluate seven revised versions of an electronic sepsis alert rule to assess their performance in detecting sepsis cases and patient deterioration (in-hospital mortality or ICU admission). Four revised options had higher sensitivity but lower specificity than the original rule. After discussion with clinical experts, two revised options with the highest sensitivity were selected. Further analysis on the number of alerts and time intervals between alerts and patient outcomes was conducted to decide the option to be implemented. This study has provided a data-driven approach to improve the CDS on early detection of sepsis.
This study aimed to determine the source of complaints about the poor usability and lack of fit between rapid response documentation screens and rapid response (RR) processes. A modified Contextual Design research approach was implemented to explore RR processes and the congruence between these and RR documentation screens. Participants were 15 consenting clinicians from an orthopaedic ward, a rapid response team and an Intensive Care Unit. Results show that RR team documentation screens do not support clinical work that is integrated, iterative and ongoing. The relaxation of conceptual and EHR technological constraints may facilitate more effective support for clinical work.
OBJECTIVES:We investigated specific lactate thresholds for adverse outcomes in patients presenting to emergency departments (EDs) with suspected sepsis identified based on the performance of a sepsis screening algorithm.DESIGN AND SETTING:A standardised sepsis bundle was implemented across public hospitals in New South Wales, Australia, as a quality improvement initiative. A register of all adult ED presentations (≥18 years) meeting predefined criteria for sepsis was created, using a combination of data linkage and direct reporting from 97 participating sites.PARTICIPANTS:A total of 12 349 adult ED presentations with 8310 (67.3%) having serum lactate analysis on arrival. Analysis of outcomes was based on dataset for 12 349 subjects obtained through multiple imputation for missing data.INTERVENTIONS:A sepsis management bundle including early antibiotic prescribing, fluid therapy and referral to intensive care unit (ICU) services was implemented.OUTCOME MEASURES:A primary composite adverse event (AE) outcome of inhospital mortality (IHM) and/or prolonged ICU stay ≥72 hours (ICU 72 hours) was used for this study.RESULTS:There was statistically significant increase both in the ORs of AE and IHM with each integer increase in serum lactate values. After adjusting for the presence of hypotension, the estimated ORs for the combined AE outcome were 2.71 (95% CI 2.05 to 3.57), 2.65 (95% CI 2.29 to 3.08), 3.10 (95% CI 2.71 to 3.53) and 3.89 (95% CI 3.36 to 4.50) for serum lactate levels at or above 1, 2, 3 and 4 mmol/L, respectively. The corresponding ORs for IHM were 2.93 (95% CI 2.08 to 4.13), 2.77 (95% CI 2.34 to 3.29), 3.26 (95% CI 2.80 to 3.80) and 4.01 (95% CI 3.40 to 4.73), respectively (all P<0.0001). More than 10% of patients with suspected sepsis and with serum lactate ≥2 mmol/L experienced a prolonged ICU stay or died in hospital.CONCLUSIONS:ED sepsis screening algorithms intended to identify patient adverse outcomes should incorporate a serum lactate cut-off of ≥2 mmol/L as a threshold for the initiation of specific interventions and increased monitoring.
OBJECTIVE:The Sepsis-3 task force recommends the use of the quick Sequential Organ Failure Assessment (qSOFA) score to identify risk for adverse outcomes in patients presenting with suspected infection. Lactate has been shown to predict adverse outcomes in patients with suspected infection. The aim of the study is to investigate the utility of a post hoc lactate threshold (≥2 mmol/L) added qSOFA score (LqSOFA(2) score) to predict primary composite adverse outcomes (mortality and/or ICU stay ≥72 h) in patients presenting to ED with suspected sepsis. METHODS:Retrospective cohort study was conducted on a merged dataset of suspected or proven sepsis patients presenting to ED across multiple sites in Australia and The Netherlands. Patients are identified as candidates for quality improvement initiatives or research studies at respective sites based on local screening procedures. Data-sharing was performed across sites of demographics, qSOFA, SOFA, lactate thresholds and outcome data for included patients. LqSOFA(2) scores were calculated by adding an extra point to qSOFA score in patients who met lactate thresholds of ≥2 mmol/L. RESULTS:In a merged dataset of 12 555 patients where a full qSOFA score and outcome data were available, LqSOFA(2) ≥2 identified more patients with an adverse outcome (sensitivity 65.5%, 95% confidence interval 62.6-68.4) than qSOFA ≥2 (sensitivity 47.6%, 95% confidence interval 44.6- 50.6). The post hoc addition of lactate threshold identified higher proportion of patients at risk of adverse outcomes. CONCLUSIONS:The lactate ≥2 mmol/L threshold-based LqSOFA(2) score performs better than qSOFA alone in identifying risk of adverse outcomes in ED patients with suspected sepsis.
Introduction: Traditionally, paper based observation charts have been used to identify deteriorating patients, with emerging recent electronic medical records allowing electronic algorithms to risk stratify and help direct the response to deterioration. Objective(s): We sought to compare the Between the Flags (BTF) calling criteria to the Modified Early Warning Score (MEWS), National Early Warning Score (NEWS) and electronic Cardiac Arrest Risk Triage (eCART) score. Design and participants: Multicenter retrospective analysis of electronic health record data from all patients admitted to five US hospitals from November 2008-August 2013. Main outcome measures: Cardiac arrest, ICU transfer or death within 24 h of a score Results: Overall accuracy was highest for eCART, with an AUC of 0.801 (95% CI 0.799-0.802), followed by NEWS, MEWS and BTF respectively (0.718 [0.716-0.720]; 0.698 [0.696-0.700]; 0.663 [0.661-0.664]). BTF criteria had a high risk (Red Zone) specificity of 95.0% and a moderate risk (Yellow Zone) specificity of 27.5%, which corresponded to MEWS thresholds of > = 4 and > = 2, NEWS thresholds of > = 5 and > = 2, and eCART thresholds of > = 12 and > = 4, respectively. At those thresholds, eCART caught 22 more adverse events per 10,000 patients than BTF using the moderate risk criteria and 13 more using high risk criteria, while MEWS and NEWS identified the same or fewer. Conclusion(s): An electronically generated eCART score was more accurate than commonly used paper based observation tools for predicting the composite outcome of in-hospital cardiac arrest, ICU transfer and death within 24 h of observation. The outcomes of this analysis lend weight for a move towards an algorithm based electronic risk identification tool for deteriorating patients to ensure earlier detection and prevent adverse events in the hospital. (C) 2017 Elsevier B.V. All rights reserved.
Quality problemIn 2005, the Clinical Excellence Commission (CEC) found that unrecognised patient deterioration remained an important problem in New South Wales (NSW) public hospitals.Initial assessmentThe challenge was to design and implement an effective and sustainable safety-net system in all 225 NSW public hospitals.Designing a solutionThe CEC's system was designed in collaboration with a broad coalition of partners, including clinicians, managers, system administrators and collaborating agencies. A five-element system comprising governance, standard calling criteria in standard observation charts, two-level clinical emergency response systems (CERS) in each facility, an education programme and evaluation, was designed for state-wide implementation. This system was called 'Between the Flags' (BTF).ImplementationImplementation was led by the CEC on behalf of a NSW coalition, and commenced in January 2010 with the implementation of the Standard Adult General Observation Chart, awareness training for all staff and a CERS in each facility.EvaluationSince the introduction of BTF, the cardiac arrest rate has declined by 42% (P < 0.05) and the Rapid Response rate has increased by 135.9% (P < 0.05) in NSW. The strength of staff support for BTF has grown with the proportion of respondents strongly agreeing that BTF has benefitted patient safety more than doubling from 21% to 44%, and overall agreement rising from 68% to 82% between 2010 and 2012.Lessons learnedKey success factors are a focus on governance, standardisation of observation charts and striking the right balance between a rule-based approach and individual clinical judgement.
The Australian Commission for Quality and Safety in Health Care (ACQSHC) has articulated 10 clinical standards with the aim of improving the consistency of quality healthcare delivery. Currently, the majority of Australians die in acute hospitals. But despite this, no agreed standard of care exists to define the minimum standard of care that people should accept in the final hours to days of life. As a result, there is limited capacity to conduct audits that focus on the gap between current care and recommended care. There is, however, accumulating evidence in the end of life literature to define which aspects of care are likely to be considered most important to those people facing imminent death. These themes offer standards against which to conduct audits. This is very apt given the national recommendation that healthcare should be delivered in the context of considering people's wishes while always treating people with dignity and respect.
Dr Evans points out, of helmets-would be needed-to facilitate their use. That their use would be of benefit cannot surely be doubted, and Dr Rowell displays some ignorance of his own when he relates the wearing of protective helmets only to noise and ejection seats. Protective helmets are an accepted means of reducing injury during impact and, from the British Gliding Association's published figures, gliders do impact frequently: helmets do not serve just to save life. Fourthly, Dr Rowell's statement on the retrospective enforcement of the "oxygen above 12 000 feet rule" is astonishing; it displays a lack -of knowledge of basic altitude physiology. Finally, our suggestion that there is a need for some formal aviation medicine training for glider pilots is supported by Dr Evans and by some of the misconceptions contained in the other letters. We are pleased that the gliding fraternity has taken up the gauntlet that was gently thrown in the h6pe of stimulating debate. Despite the claims of Mr Rolfe and Dr Rowell, we still contend that there can be no room for complacency where safety is concerned, in gliding or in any other sport, and they have not convinced us otherwise; nor do we accept that our short piece was "likely to mislead." Finally, with regard to Mr Rolfe's last paragraph, on the evidence put forward in his own letter and in that of Dr Rowell, -it is clear that "personal knowledge of what goes on" applies equally to aviation medicine.