Wilma M. Hopman

Quality of Life During and After Inpatient Stroke Rehabilitation

Background and Purpose— Very limited longitudinal data are available that assess the health-related quality of life (HRQOL) of stroke survivors after discharge from inpatient rehabilitation. The purpose of this research was to assess changes in HRQOL during inpatient rehabilitation and again 6 months after discharge. Methods— This was a prospective study of all eligible patients admitted to an inpatient stroke rehabilitation hospital over a 3-year period. HRQOL was assessed by means of the Medical Outcomes Study 36-item Short Form (SF-36). Dependent t tests were used to compare the scores at admission and discharge and at discharge and 6 months. Changes in HRQOL were calculated for the period of admission to discharge and of discharge to the 6-month follow-up. Results— Complete data were available for 85 patients. During rehabilitation, there were improvements in all 8 domains of the SF-36, with 5 attaining statistical significance. After discharge, 3 domains continued to improve, with 1 attaining statistical significance. However, there were marked and statistically significant declines in the other 5 domains of the SF-36. Feedback was obtained from a subset of the patients as to the reasons for these declines. Conclusions— Substantial gains in HRQOL during inpatient stroke rehabilitation may be followed by equally substantial declines in the 6 months after discharge. There is a need for longitudinal research into the HRQOL of stroke survivors and their families, as well as a need to ensure that adequate community services and support are available.

Advanced Interatrial Block Predicts New Onset Atrial Fibrillation in Patients with Severe Heart Failure and Cardiac Resynchronization Therapy

Advanced interatrial block (aIAB) on the surface electrocardiogram (ECG), defined as a P‐wave duration ≥120 milliseconds with biphasic (±) morphology in inferior leads, is frequently associated with atrial fibrillation (AF). The aim of this study was to determine whether preoperative aIAB could predict new‐onset AF in patients with severe congestive heart failure (CHF) requiring cardiac resynchronization therapy (CRT).

Delivery of meaningful cancer care: a retrospective cohort study assessing cost and benefit with the ASCO and ESMO frameworks

BACKGROUND The American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) have developed frameworks that quantify survival gains in light of toxicity and quality of life to assess the benefits of cancer therapies. We applied these frameworks to a cohort of contemporary randomised controlled trials to explore agreement between the two approaches and to assess the relation between treatment benefit and cost. METHODS We identified all randomised controlled trials of systemic therapies in non-small-cell lung cancer, breast cancer, colorectal cancer, and pancreatic cancer published between Jan 1, 2011, and Dec 31, 2015, and assessed their abstracts and methods. Trials were eligible for inclusion in our cohort if significant differences favouring the experimental group in a prespecified primary or secondary outcome were reported (secondary outcomes were assessed only if primary outcomes were not significant). We assessed trial endpoints with the ASCO and ESMO frameworks at two timepoints 3 months apart to confirm intra-rater reliability. Cohens κ statistic was calculated to establish agreement between the two frameworks on the basis of the median ASCO score, which was used as an arbitrary threshold of benefit, and the framework-recommended ESMO threshold. Differences in monthly drug cost between the experimental and control groups of each randomised controlled trial (ie, incremental drug cost) were derived from 2016 average wholesale prices. FINDINGS 109 randomised controlled trials were eligible for inclusion, 42 (39%) in non-small-cell lung cancer, 36 (33%) in breast cancer, 25 (23%) in colorectal cancer, and six (6%) in pancreatic cancer. ASCO scores ranged from 2 to 77; median score was 25 (IQR 16-35). 41 (38%) trials met the benefit thresholds in the ESMO framework. Agreement between the two frameworks was fair (κ=0·326). Among the 100 randomised controlled trials for which drug costing data were available, ASCO benefit score and monthly incremental drug costs were negatively correlated (ρ=-0·207; p=0·039). Treatments that met ESMO benefit thresholds had a lower median incremental drug cost than did those that did not meet benefit thresholds (US

Impact of a provincial asthma guidelines continuing medical education project: The Ontario Asthma Plan of Action’s Provider Education in Asthma Care Project

2981 [IQR 320-9059] vs

CPAP reduces hypercoagulability, as assessed by thromboelastography, in severe obstructive sleep apnoea

8621 [1174-13 930]; p=0·018). INTERPRETATION There is only fair correlation between these two major value care frameworks, and negative correlations between framework outputs and drug costs. Delivery of optimal cancer care in a sustainable health system will necessitate future oncologists, investigators, and policy makers to reconcile the disconnect between drug cost and clinical benefit. FUNDING None.

Outcomes of asthma education: results of a multisite evaluation.

BACKGROUND The Ontario Ministry of Health and Long-Term Care funded the Ontario Lung Association to develop and implement a continuing medical education program to promote implementation of the Canadian asthma guidelines in primary care. OBJECTIVES To determine baseline knowledge, preferred learning format, satisfaction with the program and reported impact on practice patterns. METHODS A 3 h workshop was developed that combined didactic presentations and small group case discussions. Outcome measures included a workshop evaluation, baseline assessment of asthma management knowledge and three-month postreflective evaluations. RESULTS One hundred thirty-seven workshops were delivered to 2783 primary care providers (1313 physicians, 1470 allied health) between September 2002 and March 2005. Of the 2133 participants, 1007 physicians and 1126 allied health professionals submitted workshop evaluations. Most (98%) of the attendees indicated they would recommend the workshop to a colleague. The majority preferred the combination of didactic lecture plus interactive case discussions. A subset of physicians provided consent to use these data for research (n=298 pediatric and 288 adult needs assessments; n=349 postreflective evaluations). Important needs identified included appropriate medication for chronic asthma and development of written action plans. On the postreflective evaluations, 88.7% remained very satisfied, 95.5% reported increased confidence, 91.9% reported an influence on practice and 67.2% reported using a written action plan. CONCLUSIONS This continuing medical education program addresses identified needs of primary care providers. Participants reported improvements in asthma care, including prescribing practices, use of spirometry and written action plans. Similar programs should be considered as part of multifaceted asthma guidelines dissemination and implementation initiatives in other provinces and nationally.

Quantification of perioperative changes in von Willebrand factor and factor VIII during elective orthopaedic surgery in normal individuals

Obstructive sleep apnoea (OSA) is associated with increased cardiovascular morbidity and mortality and hypercoagulability may be an underlying factor. We tested the hypotheses that patients with severe OSA are hypercoagulable and that two weeks of continuous positive airway pressure (CPAP) treatment reduces this hypercoagulability. In a prospective crossover study, twelve patients were randomized to either CPAP or no-CPAP for two weeks, a one week washout period, and then the other testing period for two weeks. Thromboelastography was used to assess coagulability at the start and end of each period and the apnoea-hypopnea indices (AHI) were measured at the end of each period. At baseline, ten patients had, compared to reference values, shorter clotting times, six increased rate of clot formation, twelve increased clot strength, and ten increased clotting indices. CPAP significantly reduced AHI (p=0.0003), clot strength (p=0.019) and clotting index (p=0.014). Hypercoagulability in patients with OSA can be detected by thromboelastography, and is reduced by CPAP.

Variability of thromboelastographic responses following the administration of rFVIIa to haemophilia A dogs supports the individualization of therapy with a global test of haemostasis.

BACKGROUND This observational study compared the effectiveness of a standardized adult asthma education program administered in a variety of sites and practice settings on health care utilization, absenteeism, amount of leisure time missed and quality of life (using the Medical Outcomes Study 36-Item Short Form 1.0 [SF-36]). METHODS Seven asthma centres participated in an uncontrolled, multicentre, prospective, observational study using a pre-post design. Variables included hospital- and community-based centres, an academic hospital setting and the presence or absence of physician attendance. Trained asthma educators administered a guided self- management education program, and standardized questionnaires were used for patient assessment at baseline and six months after education. RESULTS Of the 517 patients enrolled at baseline, 396 were eligible for the six-month follow-up. Follow-up data were available for 252 patients. SF-36 data were collected for 241 patients at six sites, with follow-up data available for 103 of 155 eligible patients. Asthma education was associated with substantial improvements in scheduled and unscheduled physician visits, unscheduled specialist visits, emergency department visits, hospital admissions, hospitalized days, missed work or school days and missed days of leisure time. There were also statistically significant improvements in all but one SF-36 domain. These improvements were comparable across all geographical sites and physical settings. CONCLUSIONS Standardized asthma education appears to be effective when administered in a variety of practice settings, and may be associated with significant improvements in patient outcomes. The significant decline in health care utilization implies that substantial health care savings may occur as a result of the implementation of standardized asthma education programs.

High resolution analysis of wait times and factors affecting surgical expediency

von Willebrands disease (VWD) patients undergoing major surgery are prophylactically treated to promote haemostasis. There is variability in perioperative clinical practice; however, most guidelines suggest replacing the deficient factor to a level of 1.0 IU mL−1 (or 100%). A review of the literature reveals a paucity of well constructed descriptive data quantifying the changes in coagulation that occur in response to surgical stress. The aim of this study was to quantify the changes in haemostatic variables occurring in response to elective orthopaedic surgery in normal individuals. Eligible subjects >18 years of age undergoing total hip or knee replacement were recruited. Blood samples were drawn at five time points: baseline, preoperatively, 30 min after surgical incision, 30 min postoperatively, postoperative day (POD) 1. Analyses included t‐tests and repeated measures anova. Overall 30 patients, 21 women and 9 men, with a mean age of 65 were included in the final analysis. All von Willebrand factor (VWF) variables were seen to significantly decrease intraoperatively and increase postoperatively. VWF multimers showed a statistically significant decrease in high molecular weight multimers intraoperatively and an increase postoperatively. On subgroup analysis, age, gender and anaesthesia type were significantly correlated with changes in VWF parameters. Data presented in the current study establish a physiological baseline for VWF parameters in the normal population and demonstrate mean VWF/factor VIII levels greater than 1.0 IU mL−1 intraoperatively. As such, current management in VWD patients does not appear to mimic the normal physiological response to surgery.

The histology of human right atrial tissue in patients with high-risk Obstructive Sleep Apnea and underlying cardiovascular disease: A pilot study

Summary.  The efficacy of recombinant factor VIIa (rFVIIa) therapy in haemophilia A is challenged by the lack of a reliable monitoring tool for treatment response. This is further complicated by the significant inter‐patient variability associated with this response. Thromboelastography (TEG), a real time global haemostatic test has shown superiority over conventional tests of haemostasis and has proven efficiency in the monitoring of bypass agents such as rFVIIa and FEIBA™. However, this evaluation has been limited to a few case studies or very small patient series. In this study, six severe haemophilia A dogs were treated with a clinically relevant single dose of rFVIIa, and therapy was monitored by thromboelastography predrug and at 15, 30 and 60 min postdrug administration using citrated whole blood samples activated with tissue factor and compared with non‐tissue factor‐activated samples. Despite the homogeneity of the tested dogs, a clear inter‐individual variation was observed in the pre‐and post‐rFVIIa Thromboelastography analyzes. The improvement of global haemostatic parameters was seen as early as 15 min following drug administration, with a peak for factor VIIa activity in plasma at the same time. There is a significant correlation between plasma FVIIa and TEG parameters 15 min postinjection, and the baseline TEG profile influences the individual postdrug administration outcome. Together, these data support the value of TEG not only as an effective monitoring haemostatic test, but also as a tool for individualization of therapy to achieve the best haemostatic and cost effectiveness of rFVIIa therapy.