Objective To understand the acute effect of the air pollution on daily mortality of cardiovascular diseases in the old people aged over 65 years in Taiyuan, Shanxi, China. Methods Case-crossover design was used to assess the association between air pollution and daily cardiovascular disease mortality. Pollutants considered were nitrogen dioxide (NO2), carbon monoxide (CO), inhalable particles (PM10) and sulfur dioxide (SO2). Results CO exposure was significantly associated with the mortality of five kinds of cardiovascular diseases. No association was found for arrhythmia. As CO concentration increased by 100 ?g/m3, the corresponding OR of cardiovascular disease mortality were as follows, total cardiovascular disease mortality were1.000-1.013, cardiac mortality were1.000-1.024, ischemic heart disease were 1.005-1.032, cardiac failure were 1.006-1.112, myocardial infarction were 1.009-1.050 respectively. The higher OR value was found in unidirectional control design than that in the bidirectional design. Considering the lag effect of air pollution, the 24 hr and 48 hr average of air pollution levels were analyzed in the present study respectively. Conclusion The current air pollution level (PM10, CO) in Taiyuan City has a acute effect on the cardiovascular disease mortality in the local old people aged over 65 years.

Objective To discuss influence of early rehabilitation nursing on rehabilitation effect of patients after heart valve replacement.Methods 60 patients with heart valve replacement were divided into the rehabilitation group and the control group with 30 patients in each group.The control group was given normal nursing and self-exercise ad libitum.Based upon the above,the rehabilitation group was given systemic and normative rehabilitation nursing according to programs established for each individual.The incidence of complications,guardianship time and hospitalization time were compared between the two groups.Results The incidence of complications of the patients in the rehabilitation group was much lower than the patients in the control group.And the time of the patients in the rehabilitation group in ICU and hospitalization time was shorter than the patients in the control group.Conclusions Early rehabilitation care can effectively reduce the incidence of complications after cardiac surgery,promote recovery of cardiac function,also can improve the quality of life of patients.

Objective:To further study concentration-response relationship between daily mortality and particulate air pollution,to provide scientific basis for making policy.Methods:We applied spline model to daily time-series data for Taiyuan city,China from 2004-2005,using concentration of particulate matter less than 10 ?m in aerodynamic diameter(PM10)as the exposure measure,and controlling confounding factors,such as season,meteorological factors,day-of-the-week,other air pollutions,etc.Results:The spline model showed a non-linear relationship for the relative risks of death for all causes(total deaths)and for specific causes in relation to PM10 concentration,and obtained threshold levels.For total mortality,malignant tumor mortality and cardiovascular-cerebrovascular-respiratory mortality,the threshold levels were 85.00 ?g/m3,89.59 ?g/m3,122.54 ?g/m3,respectively,using the value of differential deduction.Conclusion:Our nonlinear models are appropriate for assessing the effect of particulate air pollution on daily mortality at current ambient levels in Taiyuan,China,in contrast to those of Europe and America.

Objective:To investigate the efficacy and safety of the Steward Scale(S Scale)and the Modified Aldrete Scale (A Scale) for resuscitation of children undergoing gastrointestinal endoscopy with general anesthesia.Methods:A total of 199 underage children who underwent non-intubated gastrointestinal endoscopy with general anesthesia in Children′s Hospital, Zhejiang University School of Medicine from July to December 2022 were retrospectively included in this study and divided into preschool group (36 cases), low school-age group (75 cases) and high school-age group (88 cases) according to age. S Scale and A Scale were also performed to evaluate the recovery from anesthesia. The vital signs of the children and the time required for reaching the target were recorded, and the scoring efficiency and safety of the two scales were compared.Results:The time required for S Scale to reach the standard (17.50 ± 9.29) min was significantly lower than that of A Scale (20.80 ± 12.61) min, and the difference between the two groups was statistically significant ( t = 2.97, P<0.01). In the low school-age group, oxygen saturation (0.989 ± 0.010) of A Scale was higher than that of S Scale (0.980 ± 0.015), the difference was significant ( t = 2.17, P<0.05). The time required for S Scale to reach the standard was negatively correlated with age ( r = -0.385, P<0.01). There was no significant correlation between the time required for A scale to reach the standard and the children′s age ( r = -0.089, P>0.05). Conclusions:Although Steward Scale is more efficient than modified Aldrete Scale in evaluating anesthesia resuscitation in underage children undergoing gastrointestinal endoscopy with general anesthesia, modified Aldrete Scale is safer than Steward Scale and is more conducive to ensuring the life safety of children.