Clinical utility of the sinus rhythm turbulence in patients with acute myocardial infarction / 中国医师进修杂志

Objective To explore the clinical utility of the sinus rhythm turbulence in the patients with acute myocardial infarction (AMI). Methods All day the dynamic electrocardiogram was monitored in 36 patients with AMI (AMI group) and 60 healthy subjects with ventricular premature beat (VPB) (control group),the TO value and TS value after VPB was compared between two groups. Results The TO value after VPB in AMI group was higher than that in control group (P＜0.01), the TS value after VPB in AMI group was lower than that in control group (P ＜ 0.01). The TO value in the non-survivors with AMI was higher than that in the survivors,while their TS value was lower with a significant difference (P＜ 0.01). The irregular positive rate of the TO value and the TS value in the patients with AMI was 58.1%(50/86) and 67.4%(58/86), while that of the healthysubjects was 16.7%(10/60) and 10.0%(6/60) with a significant difference (P ＜ 0.05). The research from the follow-up visit of the selected patients in 2 years showed that death rate of the patients with both irregular TO and TS was 46.2% (24/52), the death rate with either irregular TO or TS was 25.0%(7/28), the death rate with both regular TO and TS was 16.7%(1/6), and the difference of the three phenomenon was significant (P ＜ 0.01). Conclusion As long as the sinus rhythm turbulence of the patients with AMI disappears or declines,the death rate increases, and to monitor and analyze their TO and TS in time is helpful for us to avoid the sudden death of the patients and to discover the levels of their risks.

Study on the Cultural Practice of New Hybrid Yuanhu / 中草药

Some cultural practices of a new hybrid yuanhu were reported. The planting deusity of thc new variety wast using small seed tubers (2.8g/Per tuber ), 50~75 tubers/m2 for reprodu ction purpose, 100 tubers/m2 for high yield. 75 tubers/m2 was a suitable density when large or middle seed tubers was used. High reproduction coefficient and yield were obtained when the planting depth was 10cm. It was necessary to irrigate the hybrid yuanhu in North China.Adopting the negative pressure valuc of soil tumidometer as the guide of beginning to irrig ate and to obtain high reproduction cocfficient and to save water, 26.7kPa would be adopted as the initial point of irrigation, excecding 40.0 kPa led to a serious reduction of yield. The difference of yield between rubber tuber irrigaticn and drip irrigation treatment was not obvious, when planting with covering straw in level bed.