Jian-ling Sun

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BACKGROUND AND OBJECTIVE Proton magnetic resonance spectroscopy (MRS) of the liver in vivo is in experimental phase. MRS observation on liver cancer after transcatheter arterial chemoembolization (TACE) has seldom been reported. This study was to investigate the value of MRS in assessing the metabolic changes of hepatocellular carcinoma (HCC) after TACE. (More)
BACKGROUND There is evidence that the autonomic nervous system may be involved in the mechanism of focal atrial fibrillation (AF), so the present study investigated the effects of the parasympathetic nervous system on the occurrence of focal AF originating from the pulmonary veins (PVs). METHODS AND RESULTS In 10 mongrel dogs, programmed stimulation and(More)
To study the response of the cardiovascular system, to exercise tolerance in-patients over 75 years old with coronary heart disease (CHD), and to evaluate the significance of the parameters of the treadmill exercise test (TET). 110 patients received TET and coronary artery angiography. They were divided into two groups: the elderly patients group included(More)
OBJECTIVE To test the hypothesis that regional sympathetic innervation in the atria and pulmonary veins are correlated with atrial fibrillation (AF). METHODS Sixteen adult mongrel dogs underwent thoracotomy under general anesthesia. Bilateral cervical vagal trunks were decentralized. Multipolar catheters were placed into right atrial appendage (RAA), left(More)
OBJECTIVE To observe the electrophysiological effects of ibutilide on canine and to explore the potential mechanisms of ibutilide on terminating atrial flutter. METHODS Eighteen mongrel dogs were anesthetized and intubated. The heart was exposed through thoracotomy for electrodes implantation. The electrophysiologic variables (heart rate, the conduction(More)
Rapid developments in network systems of business service have resulted in more reliance on distributed computing, typified by "subscriber/push" architectures. Unfortunately, frequent and unexpectable network failures were routine, and downtime was not in hours, but in days. High availability has become the most important factor decreasing business risk and(More)
This study aims to observe the effects of ibutilide on canine cardiac pacing threshold and on induction rates of atrial fibrillation. Eighteen mongrel dogs were anesthetized and administrated with ibutilide. The pacing thresholds and induction rates of atrial fibrillation were measured with and without ibutilide (10-min infusion dose was 0.10 mg kg−1,(More)
Web service composition is a low cost and efficient way to leverage the existing resource and implementation. However, in the current web service composition implementation, the problem of how to define the role for a new composite web service has been little addressed. How to adjust the access control policy for the new composite web service always causes(More)
Qixiashan lead-zinc mine of Nanjing was one of the largest lead zinc deposits in East China Its exploitation has been over 50 years, and the environmental pollution has also been increasing. The lead concentration in the local environment was high, but lead migration and toxic mechanism has not been clear. Therefore, biogeochemistry research of the lead(More)
Objective: To evaluate the efficacy and safety of intravenous ibutilide and propafenone for immediate treatment of atrial flutter. Methods: Forty patients with atrial flutter with an arrhythmia duration of three hours to 90 days were randomized to receive up to two 10-minute infusions of ibutilide (1 and 1 mg) or propafenone (70 and 70 mg) with a 10-minute(More)