Changes of intracellular calcium concentration in fetal lamb ductus arteriosus, small pulmonary artery and aorta muscle cells under hypoxic conditions:an in vitro study;

Mechanism of closure of ductus arteriosus and its clinical importance;

Ultrasonic survey of fetal ductus arteriosus;

The effect of Retinoid Acid on proliferation and related cell signal pathway of human fetel smooth muscle cells from aorta,pulmonary artery and arterial duct in vitro;

Applied anatomy of ligation of patent arterial duct on extrapleura through left triangle of auscultatory;

Anatomic studies on ligation of patent arterial duct via the left thorax;

Objective To study vitA impact on the calcium concentration of the ductus ateriosus and the lung maturation of premature delivery fetal rabbits.

It is important to master the indications of chemotherapy by artery catheter correctly.

Methods:Cut the pulmonary artery with mild hypothermic,heart beating circulation,Insert the Foley catheter into aorta through PDA and inject NS to the balloon.

Objective:To evaluate the effects of the anesthesia method used during the operation of Patent ductus arteriosis(PDA)through cardic catheter without thoracotomy.

Methods Retrospective analysis:A total of 57 patients with refractory septic shock,in whom pulmonary artery catheter was placed,were studied during a 5-year consecutive period from 2001 to 2006 in a general ICU of a teaching hospital in Beijing,China.

Objective To evaluate consistency and relevance in monitoring cardiac volume load and hemodynamic parameters determined by pulmonary artery catheter(PAC) technique.