Objective To investigate the effects of predictive nursing intervention on acute myocardial infarction ( AMI ) patients undergoing temporary preventive cardiac pace maker .Methods A total of 130 patients with AMI undergoing emergency percutaneous coronary intervention ( PCI) were enrolled by convenience sampling method and divided into control group (n=65) and observation group(n=65) according to the time of admittion.All patients were received temporary preventive cardiac pace maker before PCI .Routine nursing was applied in patients of the control group , and predictive nursing was applied in patients of the observation group . Malignant arrhythmia , hypotension and serious complications were recorded and analyzed .Results In both groups, the right coronary artery was the main artery of the infarction , accounting for 80.00%(control group, 52/65), 76.92%(observation group, 50/65) respectively, the difference was not statistically significant (P>0.05).Malignant arrhythmia rate in the observation group tended to decrease compared with that of the control group (7.69% vs 18.46%), but there′s no statistically significant difference ( P =0.069 ).Malignant arrhythmia rate of right coronary artery infarction in the observation group was lower than that of the control group (6.00%vs 21.15%) ( P =0.026 ).12.31% of observation group patients developed hypotension versus 26.15% in the control group ( P =0.045 ).Predictive nursing intervention had a tendency to reduce complications occurrence compared with routine nursing intervention (10.77%vs 20.00%), but no statistical significance was achieved(P=0.145).Conclusions Implementation of predictive nursing intervention among AMI patients undergoing temporary preventive cardiac pace maker plays an important role in reducing the risks of malignant arrhythmia and hypotension , which has certain meaning for the clinical nursing .

Objective To discuss the effect of gradually prolonging interval time of repositioning on the pressed skin of elderly patients with chronic heart failure .Methods Convenience sampling was used to choose 60 elderly patients with chronic heart failure , who were randomly divided in the observation group and the control group, each with 30 cases.The control group was repositioned once for 120 min according to the conventional method , while the observation group was repositioned once for 120 min for a week and then 30 min prolonged the next 3 weeks.Incidence rate of pressure ulcers and pressure on both scapular and sacrococcygeal regions with interval time of 120 min, 150 min, 180 min and 210 min were compared between two groups . Results The pressure had no statistically significant difference in the observation group among interval time of 120 min, 150 min and 180 min, however , the pressure on both scapular and sacrococcygeal regions with interval time of 210 min was respectively (53.67 ±3.22),(52.71 ±4.19),(95.34 ±0.48)mmHg, higher than those with other interval times, and the differences were statistically significant (P<0.05).There was no statistically significant difference of pressure on both scapular and sacrococcygeal regions during the first , second and third week between two groups .The pressures, however, were higher in the observation group than in the control group [(48.10 ±2.67)(47.94 ±5.10)(90.91 ±1.27)mmHg] during the fourth week, and the differences were statistically significant (P<0.05).The incidence rate of pressure ulcers was 20.00% in the observation group and 16 .67%in the control group , and both groups had no phase Ⅲpressure ulcers , with no statistically significant difference (Z=0.074, P>0.05).Conclusions Prolonging the interval time of repositioning to 180 min can effectively improve the skin tolerance of elderly patients with chronic heart failure , reduce their discomfort as well as nurses ’ workload without incidence of pressure ulcers .