心率失常
1.Hemochromatosis leads to bronze pigmentation of skin, diabetes mellitus (from pancreatic involvement), and cardiac arrhythmias (from myocardial involvement).
2.At follow-up of 50 months, 47 patients (56%) had reached a composite end point including death, heart transplantation, hospitalization for heart failure, arrhythmia, myocardial infarction and stroke.
3.Experimental research also proved that many ingredients in liquiritia such as sylvite and calcium salts in triterpenoid saponin glycyrrhizin、flavonoids、alkaloid and polysaccharide have the effects of arrhythmia releasing, ulcer relieving, inhibiting the gastric acid secretion, alleviating the spasmodic smooth muscle, pain relieving, lipid decreasing, liver protecting、phlegm eliminating and asthma calming.
4.Results The incidence of atrial arrhythmia in the AAI/DDD groups were much lower(efficiency 85%) than VVI goup(efficiency 43%) P <0 01.the patients had higher left ventricular eject function(LVEF) and cardiac output(CO) after AAI/DDD pacing ( P <0 05).
5.Objective:The patients with sudden coronary death(SCD)often died of fetal arrhythmia induced by ischemia/reperfusion(I/R)within one hour after the onset of disease. However the routine pathological method can not detect the definite morphological changes until four to six hours after the myocardium ischemia injury.
6.Objective To explore the effect of Metoprolol, a β adrenoreceptor block, on heart rate variability(HRV)and ventricular arrhythmia in patients with old myocardial infarction(OMI).
7.P R interval and QRS time limit of LBBB groups was longer than that of RBBB group (P <0.01). The authors also found that severe ventricular arrhythmias was seen in those with organic-cardiac diseases with poor prognosis.
8.Objective: The morphology of field potentials(FPs) was studied by microeiectrode arrays (MEA) mapping technique. The effect of amiodarone and dofetilide on ventricular myocardial field action potential duration (fAPD) and heart rate was mapped by MEA in guinea pigs.
9.The rate of ventricular arrhythmias caused by aconitine increased (from 33%,64% to 89%) with the decrease (HRD from 28～36 min -1 ,17～25 min -1 to 8～13 min -1 ) of heart rate dispersion in mice with myocarditis.
10.The therapeutic efficacy of moricizine HCl was evaluated in 48 patients with cardiac arrhythmias including 36 cases of ventricular and 1 2 cases of supraventricular arrhythrnias. The antiarrhythmic activity was assessed by 24 hours ambulatory electrocardiographic monitoring and measurement of heart rate and rhy-thm twice daily.
