Original article: CardiovascularApplications of statistical quality control to cardiac surgery
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2018, Progress in Pediatric CardiologyCitation Excerpt :When second order (special cause) variations are present, the goal shifts from decreasing variation to establishing control around a desirable outcome. Efforts to ensure effective participation of patients (and their families) in healthcare are called by many names —patient centeredness, patient engagement, patient experience [93]. Heart failure is a chronic illness that requires a co-production model to improve patient-centered outcomes [94].
Quality improvement methods to study and improve the process and outcomes of pediatric cardiac care
2011, Progress in Pediatric CardiologyCitation Excerpt :This control chart illustrates that the variation is due to common cause and that without any changes to the process they can predict time to extubation will continue to fall within a range that will not exceed the upper control limit of 55 h. Statistical control methodology cannot be applied to all surgical procedures, but is appropriate in the analysis of data from operations that are performed frequently and with relatively standard methods (by a small team) [20]. In addition, patients should be separable into homogeneous subsets for the analysis, for example by stratifying patients by procedure, and the procedures should have a well-characterized range of favorable and unfavorable outcomes.
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2011, Annals of Thoracic SurgeryCitation Excerpt :An alternative is to order the display of confidence intervals alphabetically or randomly, with the population mean result superimposed. Some investigators have used a statistical quality control approach, with outlier “warnings” indicated by results outside the 95% or 2 standard deviation control limits, and confirmed outlier status designated when they lie outside the 99.7% or 3 standard deviation control limits [99]. Spiegelhalter [98] advocates the use of “funnel plots” that graph each provider's performance against its volume (Fig 2).
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