Informatics in action: lessons learned in comparative effectiveness research

Comparative effectiveness research (CER) is meant to provide evidence about the relative risks and benefits of different treatment options. It is gaining visibility as a tool to address the evidence gaps that clinicians struggle with every day; however, CER is particularly challenging in oncology as there is great variability in how individuals respond to interventions, and a wide range of drugs and procedures are available. In order to overcome these obstacles and conduct reliable CER studies, it is critical to create a robust data infrastructure to support it.The Center for Medical Technology Policy held its first annual CER Summit in November 2010, with a particular focus on oncology. A number of critical informatics themes emerged including the need for consistent data standards, registry reform, tools to assist trial accrual, and data to integrate into value deliberations. Addressing the data issues highlighted in this report will provide a significant opportunity to improve the health of our medical system.     

Electronic toxicity monitoring and patient-reported outcomes

Understanding the potential profile of adverse events associated with cancer treatment is essential in balancing safety versus benefits. Multiple stakeholders make use of this information for decision making, including patients, clinicians, researchers, regulators, and payors. Currently, adverse events are reported by clinical research staff, yet evidence suggests that this may contribute to underreporting of symptom events. Direct patient reporting via electronic interfaces offers a promising mechanism to enhance the efficiency and precision of our current approach and may complement clinician reports of adverse events. The National Cancer Institute has contracted to develop and test an item bank and software system for directly eliciting adverse symptom event information from patients in cancer clinical research, called the Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events. The validity, usability, and scalability of the Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events prototype are currently being examined in academic and community-based settings.     

The Value of Data Collection within a Palliative Care Program

Collecting reliable and valid data is an increasing expectation within palliative care. Data remain the crux for demonstrating value and quality of care, which are the critical steps to program sustainability. Parallel goals of conducting research and performing quality assessment and improvement can also ensure program growth, financial health, and viability in an increasingly competitive environment. Mounting expectations by patients, hospitals, and payers and inevitable pay-for-performance paradigms have transitioned data collection procedures from novel projects to expected standard operation within usual palliative care delivery. We present types of data to collect, published guides for data collection, and how data can inform quality, value, and research within a palliative care organization. Our experiences with the Quality Data Collection Tool (QDACT) in the Carolinas Palliative Care Consortium to collect data on quality have led to valuable lessons learned in creating a data collection system. Suggested steps in forming data-sharing collaborations and building data collection procedures are shared.     

Physical and cognitive performance and burden of anticholinergics, sedatives, and ACE inhibitors in older women

Polypharmacy, common in older people, confers both risk of adverse outcomes and benefits. We assessed the relationship of commonly prescribed medications with anticholinergic and sedative effects to physical and cognitive performance in older individuals. The study population comprised 932 moderately to severely disabled community-resident women aged 65 years or older who were participants in the Women's Health and Aging Study I. A scale based on pharmacodynamic principles was developed and utilized as a measure of drug burden. This was related to measures of physical and cognitive function. After adjusting for demographics and comorbidities, anticholinergic drug burden was independently associated with greater difficulty in four physical function domains with adjusted odds ratios (95% confidence interval (CI)) of 4.9 (2.0-12.0) for balance difficulty; 3.2 (1.5-6.9) for mobility difficulty; 3.6 (1.6-8.0) for slow gait; 4.2 (2.0-8.7) for chair stands difficulty; 2.4 (1.1-5.3) for weak grip strength; 2.7 (1.3-5.4) for upper extremity limitations; 3.4 (1.7-6.9) for difficulty in activities of daily living; and 2.4 (95% CI, 1.1-5.1) for poor performance on the Mini-Mental State Examination. Sedative burden was associated only with impaired grip strength (3.3 (1.5-7.3)) and mobility difficulty (2.4 (1.1-5.3)). The burden of multiple drugs can be quantified by incorporating the recommended dose regimen and the actual dose and frequency of drug taken. Anticholinergic drug burden is strongly associated with limitations in physical and cognitive function. Sedative burden is associated with impaired functioning in more limited domains. The risk associated with exposure of vulnerable older women to drugs with anticholinergic properties, and to a lesser extent those with sedative properties, implies that such drugs should not be used in this patient group without compelling clinical indication.     

Creating a research culture in a palliative care service environment: a qualitative study of the evolution of staff attitudes to research during a large longitudinal controlled trial (ISRCTN81117481)

This study investigated the impact of a three-year randomized control trial of different models of service provision on palliative care staff associated with the hospice where the trial was being conducted. Eleven open access de-identified qualitative focus groups were held over a period of three years: three months into the trial, one year after its inception, and at the end of the trial. Four staff groups were involved: inpatient hospice nurses, palliative care outreach nurses, medical palliative specialists, and administrative staff and social workers. Initially the impact of the trial produced high levels of staff stress which largely diminished over time, to be replaced by enthusiasm for the changes achieved and sadness that post trial the perceived benefits gained would be lost. When attempting to change a clinical culture to incorporate research, and in particular where increased staff workload is involved, highly interactive levels of communication and valuing of staff input are required to minimize the stress and burden of this imposition.     

On the development of the European S3 guidelines on the systemic treatment of psoriasis vulgaris: structure and challenges

Background The development of evidence based guidelines is a demanding and time consuming process. Therefore it is important to share the knowledge and discuss the structure of these guidelines in detail. Objectives To present a method report on the development process of the European evidence based guidelines on the systemic treatment of psoriasis vulgaris with the aim to offer guidance to other guidelines groups with lesser experience and to critically appraise the methodology of the guidelines development process. Methods The guidelines are based on the previously evaluated literature from three European national evidence based guidelines and an additional systematic search and evaluation of new literature. Further steps included a structured consensus conference and a DELPHI procedure to develop the recommendations, as well as several internal and external reviews. All steps were coordinated by the Division of evidence based medicine in cooperation with a group of methodologists. Results A total of 114 studies were included, serving as base for the efficacy chapters of the intervention. The recommendations, based on the efficacy and the level of evidence of the included studies were discussed and finally consented by the guidelines group. After subsequent reviews the guidelines were presented to the European Dermatology Forum, European Academy of Dermatology and Venereology and Union Européenne des Médicins Spécialistes for approval and published in October 2009. Conclusion The development of European evidence based guidelines requires a coordinated structure which can be achieved by the integration of an experienced group of methodologists. Nevertheless further improvements are imaginable and might be considered for an update or other European evidence based guidelines.     

Homozygous and compound heterozygous mutations in the ATP6V1B1 gene in patients with renal tubular acidosis and sensorineural hearing loss

Mohebbi N, Vargas‐Poussou R, Hegemann SCA, Schuknecht B, Kistler AD, Wüthrich RP, Wagner CA. Homozygous and compound heterozygous mutations in the ATP6V1B1 gene in patients with renal tubular acidosis and sensorineural hearing loss. Distal renal tubular acidosis (dRTA) is characterized by the inability to excrete acid in the renal collecting ducts resulting in inappropriately alkaline urine and hyperchloremic (normal anion gap) metabolic acidosis in the context of a normal (or near‐normal) glomerular filtration rate. Inborn dRTA can be due to autosomal dominant or recessive gene defects. Clinical symptoms vary from mild acidosis, incidental detection of kidney stones or renal tract calcification to severe findings such as failure to thrive, severe metabolic acidosis, and nephrocalcinosis. The majority of patients with recessive dRTA present with sensorineural hearing loss (SNHL). Few cases with abnormal widening of the vestibular aqueduct have been described with dRTA. Mutations in three different genes have been identified, namely SLC4A1, ATP6V1B1, and ATP6V0A4. Patients with mutations in the ATP6V1B1 proton pump subunit develop dRTA and in most of the cases sensorineural hearing loss early in childhood. We present two patients from two different and non‐consanguineous families with dRTA and SNHL. Direct sequencing of the ATP6V1B1 gene revealed that one patient harbors two homozygous mutations and the other one is a compound heterozygous. To our knowledge, this is the first case in the literature describing homozygosity in the same dRTA gene on both alleles.