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The Cochrane Database of Systematic... Sep 2020In children with urinary tract infection (UTI), only those with pyelonephritis (and not cystitis) are at risk for developing long-term renal sequelae. If non-invasive... (Meta-Analysis)
Meta-Analysis
BACKGROUND
In children with urinary tract infection (UTI), only those with pyelonephritis (and not cystitis) are at risk for developing long-term renal sequelae. If non-invasive biomarkers could accurately differentiate children with cystitis from children with pyelonephritis, treatment and follow-up could potentially be individualized. This is an update of a review first published in 2015.
OBJECTIVES
The objectives of this review were to 1) determine whether procalcitonin (PCT), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR) can replace the acute DMSA scan in the diagnostic evaluation of children with UTI; 2) assess the influence of patient and study characteristics on the diagnostic accuracy of these tests, and 3) compare the performance of the three tests to each other.
SEARCH METHODS
We searched MEDLINE, EMBASE, DARE, Web of Science, and BIOSIS Previews through to 17th December 2019 for this review. The reference lists of all included articles and relevant systematic reviews were searched to identify additional studies not found through the electronic search.
SELECTION CRITERIA
We only considered published studies that evaluated the results of an index test (PCT, CRP, ESR) against the results of an acute-phase Tc-dimercaptosuccinic acid (DMSA) scan (conducted within 30 days of the UTI) in children aged 0 to 18 years with a culture-confirmed episode of UTI. The following cut-off values were used for the primary analysis: 0.5 ng/mL for procalcitonin, 20 mg/L for CRP and 30 mm/hour for ESR.
DATA COLLECTION AND ANALYSIS
Two authors independently applied the selection criteria to all citations and independently abstracted data. We used the bivariate model to calculate pooled random-effects pooled sensitivity and specificity values.
MAIN RESULTS
A total of 36 studies met our inclusion criteria. Twenty-five studies provided data for the primary analysis: 12 studies (1000 children) included data on PCT, 16 studies (1895 children) included data on CRP, and eight studies (1910 children) included data on ESR (some studies had data on more than one test). The summary sensitivity estimates (95% CI) for the PCT, CRP, ESR tests at the aforementioned cut-offs were 0.81 (0.67 to 0.90), 0.93 (0.86 to 0.96), and 0.83 (0.71 to 0.91), respectively. The summary specificity values for PCT, CRP, and ESR tests at these cut-offs were 0.76 (0.66 to 0.84), 0.37 (0.24 to 0.53), and 0.57 (0.41 to 0.72), respectively.
AUTHORS' CONCLUSIONS
The ESR test does not appear to be sufficiently accurate to be helpful in differentiating children with cystitis from children with pyelonephritis. A low CRP value (< 20 mg/L) appears to be somewhat useful in ruling out pyelonephritis (decreasing the probability of pyelonephritis to < 20%), but unexplained heterogeneity in the data prevents us from making recommendations at this time. The procalcitonin test seems better suited for ruling in pyelonephritis, but the limited number of studies and the marked heterogeneity between studies prevents us from reaching definitive conclusions. Thus, at present, we do not find any compelling evidence to recommend the routine use of any of these tests in clinical practice.
Topics: Acute Disease; Biomarkers; Blood Sedimentation; C-Reactive Protein; Calcitonin; Child; Cystitis; Diagnosis, Differential; Humans; Procalcitonin; Pyelonephritis; Randomized Controlled Trials as Topic; Sensitivity and Specificity; Urinary Tract Infections
PubMed: 32911567
DOI: 10.1002/14651858.CD009185.pub3 -
BMC Family Practice Sep 2021Accurate diagnosis of urinary tract infection is essential as children left untreated may suffer permanent renal injury. (Meta-Analysis)
Meta-Analysis
BACKGROUND
Accurate diagnosis of urinary tract infection is essential as children left untreated may suffer permanent renal injury.
AIM
To compare the diagnostic values of biomarkers or clinical prediction rules for urinary tract infections in children presenting to ambulatory care.
DESIGN AND SETTING
Systematic review and meta-analysis of ambulatory care studies.
METHODS
Medline, Embase, WOS, CINAHL, Cochrane library, HTA and DARE were searched until 21 May 2021. We included diagnostic studies on urine or blood biomarkers for cystitis or pyelonephritis in children below 18 years of age. We calculated sensitivity, specificity and likelihood ratios. Data were pooled using a bivariate random effects model and a Hierarchical Summary Receiver Operating Characteristic analysis.
RESULTS
Seventy-five moderate to high quality studies were included in this review and 54 articles in the meta-analyses. The area under the receiver-operating-characteristics curve to diagnose cystitis was 0.75 (95%CI 0.62 to 0.83, n = 9) for C-reactive protein, 0.71 (95% CI 0.62 to 0.80, n = 4) for procalcitonin, 0.93 (95% CI 0.91 to 0.96, n = 22) for the dipstick test (nitrite or leukocyte esterase ≥trace), 0.94 (95% CI 0.58 to 0.98, n = 9) for urine white blood cells and 0.98 (95% CI 0.92 to 0.99, n = 12) for Gram-stained bacteria. For pyelonephritis, C-reactive protein < 20 mg/l had LR- of 0.10 (95%CI 0.04-0.30) to 0.22 (95%CI 0.09-0.54) in children with signs suggestive of urinary tract infection.
CONCLUSIONS
Clinical prediction rules including the dipstick test biomarkers can support family physicians while awaiting urine culture results. CRP and PCT have low accuracy for cystitis, but might be useful for pyelonephritis.
Topics: Biomarkers; C-Reactive Protein; Child; Humans; Primary Health Care; Pyelonephritis; Sensitivity and Specificity; Urinary Tract Infections
PubMed: 34565335
DOI: 10.1186/s12875-021-01530-9 -
European Journal of Clinical... Dec 2018There is increasing resistance to the oral antibiotics currently recommended for the treatment of pyelonephritis, and increased healthcare costs are associated with the...
There is increasing resistance to the oral antibiotics currently recommended for the treatment of pyelonephritis, and increased healthcare costs are associated with the reliance on alternative intravenous agents. We, therefore, performed a systematic review of randomised controlled trials to determine the clinical efficacy and safety of oral antibiotics for the treatment of pyelonephritis in adults. A search of four major medical databases (MEDLINE, Embase+ Embase classic, CENTRAL and Cochrane Database for Systematic Reviews) in addition to manual reference searching of relevant reviews was conducted. Clinical cure and adverse event rates were reported, and trial quality and bias were assessed. A total of 277 studies were reviewed; five studies matched all eligibility criteria and were included. Antibiotics included were cefaclor, ciprofloxacin, gatifloxacin, levofloxacin, lomefloxacin, loracarbef, norfloxacin, rufloxacin and trimethoprim-sulfamethoxazole. In included studies, the clinical success of the outpatient treatment of pyelonephritis by cefaclor, ciprofloxacin and norfloxacin at 4 to 6 weeks was comparable at between 83 to 95%. Relatively high rates of adverse events were noted in a trial of ciprofloxacin (24%) and trimethoprim-sulfamethoxazole (33%). Significant heterogeneity between all aspects of the trial designs was identified, with all studies having a potential for bias. This review demonstrates a need for high-quality clinical trials into the oral antibiotic treatment of pyelonephritis, with more consistent designs and reporting of outcomes. There are data to support further research into oral norfloxacin and cefaclor for the outpatient treatment of pyelonephritis in adults.
Topics: Acute Disease; Administration, Oral; Anti-Bacterial Agents; Cephalosporins; Ciprofloxacin; Drug Combinations; Humans; Norfloxacin; Pyelonephritis; Randomized Controlled Trials as Topic; Sulfamethizole; Trimethoprim
PubMed: 30191339
DOI: 10.1007/s10096-018-3371-y -
Urologia Internationalis 2018We aimed to update the 2010 evidence- and consensus-based national clinical guideline on the diagnosis and management of uncomplicated urinary tract infections (UTIs) in...
The 2017 Update of the German Clinical Guideline on Epidemiology, Diagnostics, Therapy, Prevention, and Management of Uncomplicated Urinary Tract Infections in Adult Patients: Part 1.
OBJECTIVES
We aimed to update the 2010 evidence- and consensus-based national clinical guideline on the diagnosis and management of uncomplicated urinary tract infections (UTIs) in adult patients.
MATERIALS AND METHODS
An interdisciplinary group consisting of 17 representatives of 12 medical societies and a patient representative was formed. Systematic literature searches were conducted in MEDLINE, -EMBASE, and the Cochrane Library to identify literature published in 2010-2015.
RESULTS
We provide 75 recommendations and 68 statements in the updated evidence- and consensus-based national clinical guideline. The diagnostics part covers practical recommendations on cystitis and pyelonephritis for each defined patient group. Clinical examinations, as well as laboratory testing and microbiological pathogen assessment, are addressed.
CONCLUSION
In accordance with the global antibiotic stewardship initiative and considering new insights in scientific research, we updated our German clinical UTI guideline to promote a responsible antibiotic use and to give clear hands-on recommendations for the diagnosis and management of UTIs in adults in Germany for healthcare providers and patients.
Topics: Acute Disease; Adult; Anti-Bacterial Agents; Bacteriuria; Cystitis; Female; Germany; Humans; Interdisciplinary Communication; Male; Practice Guidelines as Topic; Pregnancy; Premenopause; Pyelonephritis; Societies, Medical; Urinary Tract Infections; Urology
PubMed: 29342469
DOI: 10.1159/000486138