Standardization of p‐creatinine assays and use of lean body mass allow improved prediction of calculated glomerular filtration rate in adults: A new equation

Nyman, Ulf; Björk, Jonas; Sterner, Gunnar; Back, S-E; Carlson, Joyce; Lindström, Veronica; Bakoush, Omran; Grubb, Anders

doi:10.1080/00365510600902362

Cited by 30 publications

(25 citation statements)

References 40 publications

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“…Serum and urine albumin, IgG, and urine protein HC were determined by immunoturbidimetry using a Cobas Mira S system (Roche Inc.) and monospecific rabbit antisera obtained from Dako (Copenhagen, Denmark) [13][14][15]. GFR was estimated using the Lund-Malmö formula [16,17]: eGFR for patients with plasma creatinine (pCr) <150 µmol/L = e 4.62-0.0112*pCr-0.0124*age+0.339*ln(age)-0.2226(if female) .…”

Section: Laboratory Analysismentioning

confidence: 99%

The value of IgG-uria in predicting renal failure in idiopathic glomerular diseases. A long-term follow-up study

Tofik

Aziz

Reda

et al. 2010

Scandinavian Journal of Clinical and Laboratory Investigation

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Section: Laboratory Analysismentioning

confidence: 99%

The value of IgG-uria in predicting renal failure in idiopathic glomerular diseases. A long-term follow-up study

Tofik

Aziz

Reda

et al. 2010

Scandinavian Journal of Clinical and Laboratory Investigation

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“…At a g-I/GFR ratio <1.0 the reported CIN frequency was <3% (Gurm et al, 2011;Laskey et al, 2007;Nyman et al, 2008 Total 5026…”

Section: Gram-iodine/egfr Ratiomentioning

confidence: 99%

“…Weighted mean value with individual study sizes as weights were finally calculated based on log-transformation of volume/eGFR and g-I/eGFR ratio. Absolute GFR was estimated in 3 reports (Laskey et al, 2007;Nyman et al, 2008;Worasuwannarak & Pornratanarangsi, 2010) and relative GFR in the remaining. 1.…”

Section: Gram-iodine/egfr Ratiomentioning

confidence: 99%

“…The average CM dose at PCA and/or PCI may range from 40 to 110 grams of iodine (Aspelin et al, 2003;Davidson et al, 2000;Laskey et al, 2007;Marenzi et al, 2009;Nyman et al, 2008;Rudnick et al, 1995;Worasuwannarak & Pornratanarangsi, 2010), while individual doses may range from 10 to inconceivable 500 grams of iodine (Marenzi et al, 2009).…”

Section: Percutaneous Coronary Angiography and Interventionsmentioning

confidence: 99%

See 1 more Smart Citation

Contrast Medium-Induced Nephropathy (CIN) Gram-Iodine/GFR Ratio to Predict CIN and Strategies to Reduce Contrast Medium Doses

Nyman¹

2012

Coronary Interventions

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“…OmniVis equations use plasma (serum)-creatinine (P-crea) (expressed in μmol/L), age (in years), weight (kg), height (cm) and gender. Two equations can be calculated with OmniVis, the Lund-Malmö and the Cockcroft-Gault equations [44].…”

Section: Safetymentioning

confidence: 99%

Magnetic Resonance Imaging of the Heart : Image quality, measurement accuracy and patient experience

Ahlander¹

2016

Linköping University Medical Dissertations

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Background: Non-invasive diagnostic imaging of atherosclerotic coronary artery disease (CAD) is frequently carried out with cardiovascular magnetic resonance imaging (CMR) or myocardial perfusion single photon emission computed tomography (MPS). CMR is the gold standard for the evaluation of scar after myocardial infarction and MPS the clinical gold standard for ischemia. Magnetic Resonance Imaging (MRI) is at times difficult for patients and may induce anxiety while patient experience of MPS is largely unknown. Aims: To evaluate image quality in CMR with respect to the sequences employed, the influence of atrial fibrillation, myocardial perfusion and the impact of patient information. Further, to study patient experience in relation to MRI with the goal of improving the care of these patients. Method: Four study designs have been used. In paper I, experimental cross-over, paper (II) experimental controlled clinical trial, paper (III) psychometric crosssectional study and paper (IV) prospective intervention study. A total of 475 patients ≥ 18 years with primarily cardiac problems (I-IV) except for those referred for MRI of the spine (III) were included in the four studies. Result: In patients (n=20) with atrial fibrillation, a single shot steady state free precession (SS-SSFP) sequence showed significantly better image quality than the standard segmented inversion recovery fast gradient echo (IR-FGRE) sequence (I). In first-pass perfusion imaging the gradient echo-echo planar imaging sequence (GREEPI) (n=30) had lower signal-to-noise and contrast–to-noise ratios than the steady state free precession sequence (SSFP) (n=30) but displayed a higher correlation with the MPS results, evaluated both qualitatively and quantitatively (II). The MRIAnxiety Questionnaire (MRI-AQ) was validated on patients, referred for MRI of either the spine (n=193) or the heart (n=54). The final instrument had 15 items divided in two factors regarding Anxiety and Relaxation. The instrument was found to have satisfactory psychometric properties (III). Patients who prior CMR viewed an information video scored significantly (lower) better in the factor Relaxation, than those who received standard information. Patients who underwent MPS scored lower on both factors, Anxiety and Relaxation. The extra video information had no effect on CMR image quality (IV). Conclusion: Single shot imaging in atrial fibrillation produced images with less artefact than a segmented sequence. In first-pass perfusion imaging, the sequence GRE-EPI was superior to SSFP. A questionnaire depicting anxiety during MRI showed that video information prior to imaging helped patients relax but did not result in an improvement in image quality

show abstract

Standardization of p‐creatinine assays and use of lean body mass allow improved prediction of calculated glomerular filtration rate in adults: A new equation

Abstract: A new creatinine-based equation derived in a mainly Caucasian patient sample is a better predictor of GFR than CG-type equations irrespective of the body weight measure used or, if bias-adjusted, when using zero-calibrated creatinine assays.

Cited by 30 publications

References 40 publications

The value of IgG-uria in predicting renal failure in idiopathic glomerular diseases. A long-term follow-up study

The value of IgG-uria in predicting renal failure in idiopathic glomerular diseases. A long-term follow-up study

Contrast Medium-Induced Nephropathy (CIN) Gram-Iodine/GFR Ratio to Predict CIN and Strategies to Reduce Contrast Medium Doses

Magnetic Resonance Imaging of the Heart : Image quality, measurement accuracy and patient experience

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