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824 results for “Discrimination”
Data set from Ranucci M, Barile L, Ambrogi F, Pistuddi V; Surgical and Clinical Outcome Research (SCORE) Group. Discrimination and calibration properties of the hypotension probability indicator during cardiac and vascular surgery. Minerva Anestesiol. 2019 Jul;85(7):724-730. doi: 10.23736/S0375-9393.18.12620-4. Epub 2018 Nov 22. PMID: 30481996.
<p>Data set from Ranucci M, Barile L, Ambrogi F, Pistuddi V; Surgical and Clinical Outcome Research (SCORE) Group. Discrimination and calibration properties of the hypotension probability indicator during cardiac and vascular surgery. Minerva Anestesiol. 2019 Jul;85(7):724-730. doi: 10.23736/S0375-9393.18.12620-4. Epub 2018 Nov 22. PMID: 30481996.</p> <p> </p> <p>This is the abstract:</p> <p><strong>Background: </strong> Hypotension during surgery is linked to postoperative complications. Recently, a new hemodynamic algorithm intended to predict hypotensive events (hypotension probability indicator [HPI]) has been developed. The aim of the present study is to test the discrimination and calibration properties of the HPI.</p> <p><strong>Methods: </strong> The intraoperative files of 23 patients undergoing cardiac and major vascular surgery receiving the HPI-based hemodynamic monitoring were retrospectively investigated for prediction of hypotensive events (mean arterial pressure <65 mmHg). The HPI was available at 20 seconds intervals; the values of HPI five to seven minutes before a hypotensive event (HPI5-7) were tested for discrimination and calibration.</p> <p><strong>Results: </strong> The HPI5-7 has a fair level of discrimination (area under the curve 0.768) and a poor calibration, due to overestimation of the hypotensive risk. At the observed prevalence, a cut-off value of 85% carries a sensitivity of 62.4% and a specificity of 77.7%, a negative predictive value (NPV) of 97.8% and a positive predictive value (PPV) of 12.6%; a value of 98% has a PPV of 64% and an NPV of 95.3%.</p> <p><strong>Conclusions: </strong> The HPI5-7 may offer some useful insights. Values ≤85% carry a clinically acceptable NPV for hypotensive events at the observed prevalence and may represent a "safe zone" during surgery. Values >85% do not carry enough PPV to trigger hemodynamic interventions, but represent a warning signal. Values >98% are highly suggesting a hypotensive event after 5-7 minutes. Further studies exploring the predictive ability of the HPI at different times are needed.</p>
Data associated with the manuscript entitled The impact of item-writing flaws and item complexity on examination item difficulty and discrimination value.
<p>Data spreadsheet for accompanying manuscript.</p>
Dataset relate to article "Discrimination of MSA-P and MSA-C by RT-QuIC analysis of olfactory mucosa: the first assessment of assay reproducibility between two specialized laboratories"
<p>raw data related to article at title</p>
Urine Metabolome Dynamics Discriminate Influenza Vaccination Response
<p>Overall global metabolomics data associated with publication</p>
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