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Objective To study hyperbaric oxygen on left ventricular ejection fraction preserved by the influence of left ventricular remodeling in patients with heart failure. Methods A total of 110 patients with heart failure and normal ejection fraction were randomly allocated into the control group (n=55) and the HBO group (n=55). The control group were given the routine therapy, the HBO group were treated with hyperbaric oxygen on the basis of conventional drug. The application of color doppler ultrasound before and after treatment for 3 months left ventricular structure indicators. Results Left ventricular structure indicators were significantly decreased (LVDd、IVSD、LVPWD、LVMI)(P<0.01). Compared with the control group the difference was statistically significant (P<0.05). Follow-up of 3 months, The treatment group composite cardiovascular events was fewer than the control group and had significant difference (P<0.05). Conclusion Hyperbaric oxygen therapy can significantly improve left ventricular ejection fraction preserved by heart failure of left ventricular diastolic and systolic function and reverse left ventricular remodeling,And can reduce the happening of cardiovascular events.
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Objective To study the effects of hyperbaric oxygen on the diastolic heart failure in hypertensive patients. Methods 60 hypertensive patients with diastolic heart failure were randomly divided into treatment group and control group. Conventional therapies were given to patients of both groups. In addition, hyperbaric oxygen therapy was applied to those of treatment group. After 3 months, Doppler ultrasound recordings were obtained from all patients to determine the left ventricular diastolic function. Results The indexes of left ventricular diastolic function were im-proved after treatment in both groups(P < 0.01) ,and treatment group was better than control group(P < 0. 05). Conclusion For hypertensive patients with diastolic heart failure, hyperbaric oxygen can improve heart diastolic function.
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Objective To study the effects of enhanced external counterpulsation (EECP) on the diastolic heart failure in hypertensive patients.Methods 104 hypertensive patients with diastolic heart failure were randomly divided into treatment group and control group,52 patients were given 36 hours of treatment EECP.After 6 months,Doppler ultrasound recordings were obtained from all patients to determine the left ventrlcular diastolic function.Resuits Left ventricular diastolic function index and the left ventrich mass weight index (LVMI) wero impmved after treatment in both groups(P＜0.01),and EECP treated group was better than control group(P＜0.05).Conduslon For hypertensive patients with diastolic heart failure,EECP could not only improve heart diastolic function,but also reverse reconstruction of the left ventricuhr.
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Objective To investigate the methodology and feasibility of bedside temporary cardiac pacing with balloon-tipped floating catheter by femoral vein approach.Methods 86 patients in this study were treated with bedside temporary cardiac pacing by femoral vein for arrhythmias.A balloon-tipped floating catheter was inserted through the femoral vein in right ventricle,guided by the length of catheter in body and the QRS morphology of pacing electrocardiogram(ECG).After that,the pacing site was identified by X-ray fluoroscopy.Then,the feasibility and successful rate of this bedside temporary cardiac pacing,and the causes for failure were analyzed.Results Guided by the length of catheter and the QRS morphology of pacing ECG,the succesful rate of balloon-tipped floating catheter putted into right ventricle was 98.8%.The most successful pacing sites were located at the right ventricular apex(RVA) and right ventricular out-flow tract(RVOT).The lengths of catheter from the puncture sites to RVA and RVOT were (57.2?3.2)cm and (54.3?3.1)cm,respectively.Incidence of undersensing in RVOT pacing group was significantly higher than that in RVA pacing group(P
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Objective To investigate the relationship between resting heart rate(RHR) and prognosis of acute coronary syndromes without ST-segment elevation.Methods 167 patients of ACS without ST-segment elevation admitted to hospitals consecutively from Oct. 2001 to Oct. 2004 were divided into five groups according to the levels of RHR[RHR 1 group:RHR