Objective To construct a large animal model of ischemic heart disease induced by acute myocardial infarction (AMI) . Methods Male Diannan Mini-pigs were selected (n=8), weight 20 ± 4 Kg. After general anesthesia and endotracheal intubation, blood pressure and electrocardiograph were monitored. Parasternal incision was taken and thoracotomyv was performed at 4th-to-5th intercostalgap. Pericardium was opened and left anterior descending artery was ligated. Echocardiography was performed at baseline, postoperative 28 and 60 day. Euthanasia and heart explanted was conducted at 60 day of experimental pig. After gross examination of the heart, the histological examination was used to assess myocardial infarction by using H&E staining. Results All of the pigs were presented with ventricular arrhythmias in varying degrees after ligation of the left anterior descending artery, of whom 2 died of refractory ventricular fibrillation, the mortality was 25%. Echocardiography assessment showed the loss left ventricular function, the thinning of left ventricular apical and the enlargement of left ventricule. Histological examination revealed that myocardial fibrosis and fibrous scar were formed in myocardial infarction area. Conclusion The ligation of left anterior descending artery through thoracotomy under direct vision is a reliable strategy for construction of AMI porcine model and the experimental porcine can develop ischemic cardiac dysfunction progressively.

Objective:To observe the effects of community traditional Chinese medicine (TCM) health management of patients with chronic obstructive pulmonary disease (COPD).Methods:From June 2017 to June 2018, 79 patients were selected as study subjects. These patients were randomly divided into two groups. The TCM management group had 39 patients (of which 26 were male), with an average age of (70.77±5.91) years and the course of disease of (7.97±3.12) years. The control group had 40 patients (of which 25 were males), with an average age of (70.60±5.93) years and the course of disease of (7.70±3.01) years. Both groups were given conventional western medicine treatment. The TCM management group was administered TCM health management for 1 year on the basis of the conventional western medicine treatment. This management included establishing electronic archives for COPD patients, Hu Xi Tu-Na, Baduanjin, acupoint massage, acupoint plaster, and dietary guidance according to the TCM physique identification. Management and follow-up of patients was continuous. The TCM syndrome score, CAT score, number of acute exacerbations, and lung function of COPD patients were recorded before and after 1 year of treatment.Results:In the TCM management group, there were 6 cases of clinical control, with 8 and 19 cases displaying obvious and effective effects, respectively. The total effective rate was 84.61%. In the control group, there were 2 cases of clinical control, with 3 cases and 25 cases displaying obvious and effective effects, respectively. The total effective rate was 75.00%. The curative effect of the TCM syndrome in the TCM management group was better than that in the control group. In the TCM management group，the CAT score was (7.46±3.28) points and the number of acute exacerbations was (4.21±2.61) times, the forced expiratory volume (FEV 1) in the first second was (1.99±0.79) L, and the forced vital capacity (FVC) was (2.63±0.92) L. In the control group, the CAT score was (10.38±4.68), the number of acute exacerbations was (6.03±3.00), FEV 1 was (1.66±0.65) L, and FVC was (2.41±0.81) L. The CAT score and the number of acute exacerbations in the TCM management group decreased, while the number of FEV 1 increased, which was statistically significant compared to the control group. Conclusion:Community TCM health management can improve the symptoms of COPD patients at a stable stage, reduce the number of acute exacerbations, and improve lung function.