scholarly journals Impact of point-of-care C reactive protein in ambulatory care: a systematic review and meta-analysis

BMJ Open ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. e025036 ◽  
Author(s):  
Jan Y Verbakel ◽  
Joseph J Lee ◽  
Clare Goyder ◽  
Pui San Tan ◽  
Thanusha Ananthakumar ◽  
...  

ObjectiveThe aim of this review was to collate all available evidence on the impact of point-of-care C reactive protein (CRP) testing on patient-relevant outcomes in children and adults in ambulatory care.DesignThis was a systematic review to identify controlled studies assessing the impact of point-of-care CRP in patients presenting to ambulatory care services. Ovid Medline, Embase, Cochrane Database of Systematic Reviews, Cochrane CENTRAL, DARE, Science Citation Index were searched from inception to March 2017.Eligibility criteria for selecting studiesControlled studies assessing the impact of point-of-care CRP in patients presenting to ambulatory care services, measuring a change in clinical care, including but not limited to antibiotic prescribing rate, reconsultation, clinical recovery, patient satisfaction, referral and additional tests. No language restrictions were applied.Data extractionData were extracted on setting, date of study, a description of the intervention and control group, patient characteristics and results. Methodological quality of selected studies and assessment of potential bias was assessed independently by two authors using the Cochrane Risk of Bias tool.Results11 randomised controlled trials and 8 non-randomised controlled studies met the inclusion criteria, reporting on 16 064 patients. All included studies had a high risk of performance and selection bias. Compared with usual care, point-of-care CRP reduces immediate antibiotic prescribing (pooled risk ratio 0.81; 95% CI 0.71 to 0.92), however, at considerable heterogeneity (I2=72%). This effect increased when guidance on antibiotic prescribing relative to the CRP level was provided (risk ratios of 0.68; 95% CI 0.63 to 0.74 in adults and 0.56; 95% CI 0.33 to 0.95 in children). We found no significant effect of point-of-care CRP testing on patient satisfaction, clinical recovery, reconsultation, further testing and hospital admission.ConclusionsPerforming a point-of-care CRP test in ambulatory care accompanied by clinical guidance on interpretation reduces the immediate antibiotic prescribing in both adults and children. As yet, available evidence does not suggest an effect on other patient outcomes or healthcare processes.PROSPERO registration numberCRD42016035426; Results.

2020 ◽  
Vol 25 (44) ◽  
Author(s):  
Charlotte Victoria Eley ◽  
Anita Sharma ◽  
Hazel Lee ◽  
Andre Charlett ◽  
Rebecca Owens ◽  
...  

Background C-reactive protein (CRP) testing can be used as a point-of-care test (POCT) to guide antibiotic use for acute cough. Aim We wanted to determine feasibility and effect of introducing CRP POCT in general practices in an area with high antibiotic prescribing for patients with acute cough and to evaluate patients’ views of the test. Methods We used a McNulty–Zelen cluster pragmatic randomised controlled trial design in general practices in Northern England. Eight intervention practices accepted CRP testing and eight control practices maintained usual practice. Data collection included process evaluation, patient questionnaires, practice audit and antibiotic prescribing data. Results Eight practices with over 47,000 patient population undertook 268 CRP tests over 6 months: 78% of patients had a CRP < 20 mg/L, 20% CRP 20–100 mg/L and 2% CRP > 100 mg/L, where 90%, 22% and 100%, respectively, followed National Institute for Health and Care Excellence (NICE) antibiotic prescribing guidance. Patients reported that CRP testing was comfortable (88%), convenient (84%), useful (92%) and explained well (85%). Patients believed CRP POCT aided clinical diagnosis, provided quick results and reduced unnecessary antibiotic use. Intervention practices had an estimated 21% reduction (95% confidence interval: 0.46–1.35) in the odds of prescribing for cough compared with the controls, a non-significant but clinically relevant reduction. Conclusions In routine general practice, CRP POCT use was variable. Non-significant reductions in antibiotic prescribing may reflect small sample size due to non-use of tests. While CRP POCT may be useful, primary care staff need clearer CRP guidance and action planning according to NICE guidance.


BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e040977
Author(s):  
Nga Thi Thuy Do ◽  
Rachel Claire Greer ◽  
Yoel Lubell ◽  
Sabine Dittrich ◽  
Maida Vandendorpe ◽  
...  

IntroductionC-reactive protein (CRP), a biomarker of infection, has been used widely in high-income settings to guide antibiotic treatment in patients presenting with respiratory illnesses in primary care. Recent trials in low- and middle-income countries showed that CRP testing could safely reduce antibiotic use in patients with non-severe acute respiratory infections (ARIs) and fever in primary care. The studies, however, were conducted in a research-oriented context, with research staff closely monitoring healthcare behaviour thus potentially influencing healthcare workers’ prescribing practices. For policy-makers to consider wide-scale roll-out, a pragmatic implementation study of the impact of CRP point of care (POC) testing in routine care is needed.Methods and analysisA pragmatic, cluster-randomised controlled trial, with two study arms, consisting of 24 commune health centres (CHC) in the intervention arm (provision of CRP tests with additional healthcare worker guidance) and 24 facilities acting as controls (routine care). Comparison between the treatment arms will be through logistic regression, with the treatment assignment as a fixed effect, and the CHC as a random effect. With 48 clusters, an average of 10 consultations per facility per week will result in approximately 520 over 1 year, and 24 960 in total (12 480 per arm). We will be able to detect a reduction of 12% to 23% or more in immediate antibiotic prescription as a result of the CRP POC intervention. The primary endpoint is the proportion of patient consultations for ARI resulting in immediate antibiotic prescription. Secondary endpoints include the proportion of all patients receiving an antibiotic prescription regardless of ARI diagnosis, frequency of re-consultation, subsequent antibiotic use when antibiotics are not prescribed, referral and hospitalisation.Ethics and disseminationThe study protocol was approved by the Oxford University Tropical Research Ethics Committee (OxTREC, Reference: 53–18), and the ethical committee of the National Hospital for Tropical Diseases in Vietnam (Reference:07/HDDD-NDTW/2019). Results from this study will be disseminated via meetings with stakeholders, conferences and publications in peer-reviewed journals. Authorship and reporting of this work will follow international guidelines.Trial registration detailsNCT03855215; Pre-results.


Antibiotics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 610
Author(s):  
Nahara Anani Martínez-González ◽  
Ellen Keizer ◽  
Andreas Plate ◽  
Samuel Coenen ◽  
Fabio Valeri ◽  
...  

C-reactive protein (CRP) point-of-care testing (POCT) is increasingly being promoted to reduce diagnostic uncertainty and enhance antibiotic stewardship. In primary care, respiratory tract infections (RTIs) are the most common reason for inappropriate antibiotic prescribing, which is a major driver for antibiotic resistance. We systematically reviewed the available evidence on the impact of CRP-POCT on antibiotic prescribing for RTIs in primary care. Thirteen moderate to high-quality studies comprising 9844 participants met our inclusion criteria. Meta-analyses showed that CRP-POCT significantly reduced immediate antibiotic prescribing at the index consultation compared with usual care (RR 0.79, 95%CI 0.70 to 0.90, p = 0.0003, I2 = 76%) but not during 28-day (n = 7) follow-up. The immediate effect was sustained at 12 months (n = 1). In children, CRP-POCT reduced antibiotic prescribing when CRP (cut-off) guidance was provided (n = 2). Meta-analyses showed significantly higher rates of re-consultation within 30 days (n = 8, 1 significant). Clinical recovery, resolution of symptoms, and hospital admissions were not significantly different between CRP-POCT and usual care. CRP-POCT can reduce immediate antibiotic prescribing for RTIs in primary care (number needed to (NNT) for benefit = 8) at the expense of increased re-consultations (NNT for harm = 27). The increase in re-consultations and longer-term effects of CRP-POCT need further evaluation. Overall, the benefits of CRP-POCT outweigh the potential harms (NNTnet = 11).


2019 ◽  
Vol 69 (suppl 1) ◽  
pp. bjgp19X703313
Author(s):  
Abdus Burahee ◽  
Owen Hibberd ◽  
Aneja Malladi

BackgroundOveruse of antimicrobials and the threats posed by resistance are concerning. Most patients in primary care with respiratory tract symptoms are prescribed antibiotics, amounting between 80–90% of all prescriptions. The National Institute for Health and Care Excellence (NICE) recommends point-of-care (POC) testing of C-reactive protein (CRP) where there is uncertainty about prescribing antibiotics. Studies evaluating the use of POC CRP to reduce antibiotic prescribing for self-limiting respiratory illness in primary care have demonstrated heterogeneity in their results.AimTo evaluate the impact of POC CRP testing on antibiotic prescribing.MethodA retrospective case analysis was undertaken at a GP practice. Alere Afinion AS100 was used for POC CRP testing. Data were collected on patients presenting with cough or sore throat who had POC CRP testing used in their clinical decision making. Eighty-four cases were selected for inclusion. NICE clinical guideline CG191 was used as a standard comparator for antibiotic prescribing and patients were followed up over a 2-month period.ResultsPatients presented with cough (n = 56) and sore throat (n = 28). At initial presentation 23/84 (27.4%) of patients were prescribed antibiotics. Over the 2-month follow-up period 15/84 (17.8%) of patients had at least one further consultation related to their initial respiratory complaint with 6/84 (7.1%) being prescribed antibiotics. The overall effect was a reduction of antibiotic prescriptions by 65.5%.ConclusionThe use of POC CRP testing helped GPs reduce the rate of antibiotic prescription and improve antimicrobial stewardship by being an addition to their diagnostic armoury. It has also shown potential role in patient reassurance and modifying health seeking behaviour.


PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0258299
Author(s):  
Simon Dickinson ◽  
Huey Yi Chong ◽  
Toby Leslie ◽  
Mark Rowland ◽  
Kristian Schultz Hansen ◽  
...  

Background Antimicrobial resistance (AMR) is a global health problem requiring a reduction in inappropriate antibiotic prescribing. Point-of-Care C-Reactive Protein (POCCRP) tests could distinguish between bacterial and non-bacterial causes of fever in malaria-negative patients and thus reduce inappropriate antibiotic prescribing. However, the cost-effectiveness of POCCRP testing is unclear in low-income settings. Methods A decision tree model was used to estimate cost-effectiveness of POCCRP versus current clinical practice at primary healthcare facilities in Afghanistan. Data were analysed from healthcare delivery and societal perspectives. Costs were reported in 2019 USD. Effectiveness was measured as correctly treated febrile malaria-negative patient. Cost, effectiveness and diagnostic accuracy parameters were obtained from primary data from a cost-effectiveness study on malaria rapid diagnostic tests in Afghanistan and supplemented with POCCRP-specific data sourced from the literature. Incremental cost-effectiveness ratios (ICERs) reported the additional cost per additional correctly treated febrile malaria-negative patient over a 28-day time horizon. Univariate and probabilistic sensitivity analyses examined the impact of uncertainty of parameter inputs. Scenario analysis included economic cost of AMR per antibiotic prescription. Results The model predicts that POCCRP intervention would result in 137 fewer antibiotic prescriptions (6%) with a 12% reduction (279 prescriptions) in inappropriate prescriptions compared to current clinical practice. ICERs were $14.33 (healthcare delivery), $11.40 (societal), and $9.78 (scenario analysis) per additional correctly treated case. Conclusions POCCRP tests could improve antibiotic prescribing among malaria-negative patients in Afghanistan. Cost-effectiveness depends in part on willingness to pay for reductions in inappropriate antibiotic prescribing that will only have modest impact on immediate clinical outcomes but may have long-term benefits in reducing overuse of antibiotics. A reduction in the overuse of antibiotics is needed and POCCRP tests may add to other interventions in achieving this aim. Assessment of willingness to pay among policy makers and donors and undertaking operational trials will help determine cost-effectiveness and assist decision making.


2020 ◽  
Vol 19 (1) ◽  
pp. 2-3
Author(s):  
Tim Cooksley ◽  

As another winter season passes, many colleagues will continue to be working under immense pressures striving to provide high quality care for increasingly larger numbers of patients. The work of Acute Medicine teams to keep the “front door” safe are fundamental to the delivery and sustainability of acute care services. The challenges of innovating and enacting positive changes at times of such high service demand are not insignificant; but the specialty is blessed with rapidly expanding driven and dedicated international, national and local leaders. The first winter SAMBA has recently been performed. SAMBA is an increasingly rich data source that will serve both nationally and locally to help improve performance and ultimately patient outcomes.1 Higher quality Acute Medicine is being produced. Acute Physicians are leading in many acute sub-specialties. Pleasingly, there has a been a significant rise in the number of trainees applying to train in Acute Medicine in the UK reflecting the traction the specialty is achieving. Ambulatory care remains a fundamental tenet to the sustainability of acute care services. Point of care testing is a key element in driving efficient performance in this setting and in this issue Verbakel et al. perform an important analysis on the reliability of point of care testing to support community based ambulatory care.2 This work should field the way for further research defining the impact of point of care testing and how it should be implemented in ambulatory clinical practice. The performance of respiratory rate observation remains poorly performed in acute care settings despite its well validated predictive value. Nakitende et al. describe an app that allows respiratory rate to calculated more quickly and accurately by using a touch screen method.3 Technological innovations to improve the recording and accuracy of physiological parameters in acute care, which can also be used in resource poor settings, will be a focus of large quantities of research in the upcoming years. Blessing et al. describe an important modelling study on the impact of integrated radiology units.4 Co-ordination between Acute Medicine and Radiology departments is essential in a high functioning AMU, especially as increasingly Acute Physicians are trained in point of care ultrasound. Lees-Deutsch et al. provide a fascinating insight into the patient’s perspective of discharge lounges.5 Often used to help maintain flow through the hospital, they elucidate that patients and caregivers transferred from AMU do not find this aspect of their journey a positive one. In times of significant organisational pressures, it is important that clinicians continue to examine the impact of flow measures on the quality of patient care and experience.


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