[Protective effect of ischemia postconditioning on reperfusion injury in patients with ST-segment elevation acute myocardial infarction].

Objective: To observe the effect of ischemia postconditioning during the first minutes of reperfusion for the myocardial reperfusion injury in ST-segment elevation acute myocardial infarction (STEMI) patients undergoing emergency percutaneous coronary intervention (PCI).

Methods: STEMI patients undergoing emergency PCI in affiliated hospital of Beihua University between October 2006 and January 2009 were randomly divided into two groups: the control group (n = 34) without any intervention after PTCA, and the postconditioning group (n = 30) with ischemia postconditioning within first minutes of reflow by 3 episodes of 30-second inflation and 30-second deflation with the angioplasty balloon. Reperfusion arrhythmias, CK and CKMB, corrected TIMI frame count (CTFC), wall motion score index (WMSI) and left ventricular ejection fraction (LVEF) by echocardiography were compared between the two groups.

[Clinical and ECG features of arrhythmogenic right ventricular cardiomyopathy: a retrospective analysis of 31 cases].

Objective: To retrospectively analyze the clinical and electrocardiographic features of patients with arrhythmogenic right ventricular cardiomyopathy (ARVC).

Methods: The clinical, electrocardiographic features and the efficacy of various therapies were analyzed in 31 patients (27 males) diagnosed as ARVC according to the criteria established by European Society of Cardiology.

Results: The averaged age when the ARVC was first diagnosed was (34.