Objective To analyze the main problem of continuous hand hygiene improvement by PDCA cycle, find out the causes and carry out corresponding measures, in order to improve hand hygiene management continuously. Methods Between January and June 2014, PDCA cycle was used to strengthen comprehensive training, enhance awareness of hand hygiene, reinforce supervision, and evaluate the effect of continuous hand hygiene improvement. The knowledge of hand hygiene, increase of hand hygiene facilities, use of hand hygiene products and hand hygiene implementation before (from July to December 2013) and after PDCA application (from January to June 2014) were compared and analyzed. Results After the implementation of PDCA cycle, the pass rate of hand hygiene knowledge increased from 61.0% to 88.3%; the total amount of hand hygiene use increased from 1 817 046 mL to 3 347 386 mL; the hand hygiene compliance rate increased from 43.03% to 71.31%; and the correct rate of hand hygiene implementation increased from 62.68% to 87.68%. All the above differences were statistically significant (P<0.05). After the implementation of PDCA cycle, the compliance rate of different hand hygiene indications became significantly different (P<0.05). The growth rate of hand hygiene implementation before aseptic manipulation and after contact with body fluids were relatively higher (34.56% and 34.01%, respectively). Conclusion Through the application of PDCA cycle, hand hygiene compliance rate and correct rate have gradually increased.
To evaluate the value of left ventricular diastolic function in type 2 diabetes mellitus (DM) using dual-gate Doppler and relative factors, we included 50 non-obesity and hypertension-free DM patients into the controlled group in the study along with 48 age-and-gender-matched healthy volunteer subjects. The peak early diastolic velocity (E), peak later diastolic velocity (A), deceleration time (DT), anterior mitral annulus diastolic peak velocity (e'), isovolumic relaxation time (IVRT), E/A, E/e', Tei index and TE-e' were measured with dual-gate Doppler. 20 subjects were randomly selected for repetitive analysis. Study showed statistical difference in E/A, DT, e', E/e', IVRT, Tei index and TE-e' between the two groups (P < 0.05). Linear regression analysis showed positive correlation between TE-e' and IVRT, course of DM patients and TE-e'(Beta=0.295, P=0.020), and HbA1C control level and TE-e'(Beta=0.399, P=0.010). Repeated analysis showed good reproducibility for both within and between groups. Dual-gate Doppler has clinical value in evaluating left ventricular diastolic function in type 2 diabetes mellitus patients. The course of type 2 diabetes mellitus patients and HbA1C control level were both closely related with left ventricular diastolic function.