Strict control of systolic blood pressure is known to slow progression of chronic kidney disease (CKD). Here we compared audit-based education (ABE) to guidelines and prompts or usual practice in lowering systolic blood pressure in people with CKD. This 2-year cluster randomized trial included 93 volunteer general practices randomized into three arms with 30 ABE practices, 32 with guidelines and prompts, and 31 usual practices. An intervention effect on the primary outcome, systolic blood pressure, was calculated using a multilevel model to predict changes after the intervention. The prevalence of CKD was 7.29% (41,183 of 565,016 patients) with all cardiovascular comorbidities more common in those with CKD. Our models showed that the systolic blood pressure was significantly lowered by 2.41 mm Hg (CI 0.59–4.29 mm Hg), in the ABE practices with an odds ratio of achieving at least a 5 mm Hg reduction in systolic blood pressure of 1.24 (CI 1.05–1.45). Practices exposed to guidelines and prompts produced no significant change compared to usual practice. Male gender, ABE, ischemic heart disease, and congestive heart failure were independently associated with a greater lowering of systolic blood pressure but the converse applied to hypertension and age over 75 years. There were no reports of harm. Thus, individuals receiving ABE are more likely to achieve a lower blood pressure than those receiving only usual practice. The findings should be interpreted with caution due to the wide confidence intervals.
BackgroundChronic kidney disease (CKD) is a relatively newly recognised but common long-term condition affecting 5 to 10% of the population. Effective management of CKD, with emphasis on strict blood pressure (BP) control, reduces cardiovascular risk and slows the progression of CKD. There is currently an unprecedented rise in referral to specialist renal services, which are often located in tertiary centres, inconvenient for patients, and wasteful of resources. National and international CKD guidelines include quality targets for primary care. However, there have been no rigorous evaluations of strategies to implement these guidelines. This study aims to test whether quality improvement interventions improve primary care management of elevated BP in CKD, reduce cardiovascular risk, and slow renal disease progressionDesignCluster randomised controlled trial (CRT)MethodsThis three-armed CRT compares two well-established quality improvement interventions with usual practice. The two interventions comprise: provision of clinical practice guidelines with prompts and audit-based education.The study population will be all individuals with CKD from general practices in eight localities across England. Randomisation will take place at the level of the general practices. The intended sample (three arms of 25 practices) powers the study to detect a 3 mmHg difference in systolic BP between the different quality improvement interventions. An additional 10 practices per arm will receive a questionnaire to measure any change in confidence in managing CKD. Follow up will take place over two years. Outcomes will be measured using anonymised routinely collected data extracted from practice computer systems. Our primary outcome measure will be reduction of systolic BP in people with CKD and hypertension at two years. Secondary outcomes will include biomedical outcomes and markers of quality, including practitioner confidence in managing CKD.A small group of practices (n = 4) will take part in an in-depth process evaluation. We will use time series data to examine the natural history of CKD in the community. Finally, we will conduct an economic evaluation based on a comparison of the cost effectiveness of each intervention.Clinical Trials RegistrationISRCTN56023731. ClinicalTrials.gov identifier.
Clinicians are often unclear on how to involve patients and carers in quality improvement projects, yet it is increasingly recognised as important. In practice, patients with experience of long-term conditions can co-lead quality improvement projects. It is recommended that further evaluation of the role of advisory groups is warranted.
Kidney Research UK's Peer Educator initiative has been well established as an effective and flexible way to raise awareness and reach out to BAME patients and the communities at risk. The model has been deployed across the kidney disease spectrum including from early detection to diabetes management, right through to addressing organ donation and end of life issues.
Chronic kidney disease (CKD) stages 3 to 5, affects 6–7% of the adult population and is an important risk factor for both advanced kidney disease and cardiovascular disease. This paper describes a quality improvement project that aimed to establish consistent implementation of best practice in people with stage 3–5 kidney disease who were managed in primary care.The intervention was a Care Bundle for CKD. The bundle included three evidence-based, high impact interventions based on National Institute for Care Excellence (NICE, 2008) guidance, with an additional and novel self-management element.29 GP Practices in England and Wales began the study. They undertook training in clinical management of CKD and in facilitation of self-management, with the self-management content designed and led by patients. Practices were asked to report baseline and then monthly outcome data extracted from practice computer systems. The project team provided implementation and ongoing quality improvement support for participating Practices.Ten Practices dropped out of the study following the training. Data submissions were incomplete in six Practices who continued to apply the care bundle. At the project end, a decision was taken by the study team to perform the final analysis on those thirteen Practices which completed the project and submitted at least six sets of monthly Practice-level outcome data. In these Practices the Care Bundle was applied to under 20% of the registered CKD stage 3 to 5 population in 5 Practices, 20–29% in 3 Practices, 30–49% in 2 Practices and ≥50% in 3 Practices (998 patients in total). Of these, 671 patients (75%) agreed to the self-management component of the intervention.The reliability (at project end) in those who received the Bundle was 100%. The Bundle was applied to an additional 315 patients in the six Practices who completed the project but did not submit regular practice-level monthly data.In the thirteen remaining Practices, the achievement of NICE (2008) blood pressure targets at the start of the project was 74.8% in people with CKD stage 3–5 and no diabetes and 48% in people with CKD stage 3–5 and diabetes. At the project end these figures in the same Practices were 76.7% and 49.2% respectively. These improvements were achieved in spite of Practices increasing their recording of prevalence rate (that is, identifying and recording more patients with CKD on the Practice CKD Register).In conclusion, a care bundle can be implemented in primary care. However, maintaining engagement with primary care health care professionals and maximising exposure to an intervention in patients seen infrequently are significant challenges to generalisation and sustainability.
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