砄bjective: To seek for the method of reinnervation of denervated pectoralis major myoflap. Method:The model of pectoralis major myoflap transposition in 20 New Zealand rabbits was used. After the myoflaps were transferred (original nerve innervation,ON) and ON denervation followed by hypoglossal genioglossus muscle neuromuscular pedicle implantation (NMP) wre performed. The flaps were examined at the intervals of 4,8,12 and 16 weeks respectively after operation. Results:In NMP myoflaps contracted when the hypoglosal nerve was stimulated,some type Ⅱ fibers in the myoflaps transformed into type I, but the pattern of distribution of the muscle fibers displayed mosaic and was similar to that of genioglossus muscle. Conclusion:The denervated pectoralis major myoflap can be reinnervated by hypoglossal-genioglossus muscle neuromuscular pedicle transplantation.

Objective To evaluate the systolic and diastolic function in hypertrophic segments by myocardial strain rate imaging in the patients with hypertrophic cardiomyopathy (HCM).Methods Ten patients with HCM in the mid segment of the ventricular septum and 20 age-matched healthy controls were included.The myocardial strain rate (SR) curves in bas,mid and apical segments were respectively acquired on the left ventricular septum longitudinal axis position for all the participants,and the SR curves of endocardial,mid-myocardial,epicardial layers in mid segment were also acquired.The SR values including the peak systolic SR,the peak early-diastolic SR,the peak late-diastolic SR were respectively measured,the left ventricular eject fraction (EF) and the Doppler transmitral filling velocities (E and A values) were also measured.Results SR values measured from the hypertrophic segments were significantly lower than those from the corresponding segments of the septum in control group (P

0.05).Conclusion Omeprazole and Tegaserod improved the reflux symptoms of the NERD patients.Omeprazole improves abnormal acid exposure but not abnormal bile exposure.Tegaserod improved neither abnormal acid exposure nor abnormal bile exposure.

[Objective]To analyze the causes of complication following percutaneous vertebroplasty and to find out the methods on its prevention and treatment.[Method]Complications of 140 patients (233 vertebral bodies) performed percutaneous vertebroplasty from August 2002 to July 2006 and long-term complications and its correlative prognosis after followed-up 7-52 months (average 28.4 months were observed and analyzed.[Result]Sixty-one patients of 140 cases showed complications (43.6%).Forty-five of the 61 patients with complications revealed with leakage of bone cement,2 with transient low blood pressure or lethargy,3 with dyspneic respiration or slight cough or chest discomfort,1 with subcutaneous herniation.In 12 patients complicated with leakage of bone cement,10 complained aggravation of pain,1 of radiating pain of back and low limb,1 with incomplete paraplegia. The 11 patients complicated with various postoperative pain induced by bone-cement leakage were complete recovery after treatment with anti-imflamatory analgetics orally for 3-7 days.One patient with incomplete paraplagia caused by leakage of bone cement demonstrated satisfactory walking function recovery but still remained slight disability of lower limbs after 26 months by treatment of laminectomy decompression,with drawing of bone cement combined with anti-biotics,dehydration agent,hormone,nerve-nourisling agent and 3-month acupuncture. Two patients with transient low blood pressure or lethargy were treated and recovery after fluid infusion and 30-60 oxygen taking. Three patients with dypneic respiration or slight cough or chest discomfort but without abnormality on radiographs were convalesced after treatment of fluid infusion,taking oxygen and anti-biotics for 3-5 days.The subcutaneous homotoma of 1 patient was absorbed 7 days later.Ten patients complicated with new adjacent vertebral body fracture 1-12 months postoperatively were healed after conservative treatment of PVP operation.[Conclusion]Complications after percutaneous vertebroplasty are not uncommon(43.6%).Leakage of bone cement is most common complication. Strict pre-operation plan and improving operation skill are the most important preventive measures.

Pain is a common complication after spinal cord injury. Clinical studies involve pain mechanisms, classifications and treatments,etc. Pain after spinal cord injury needs comprehensive treatment. However, each of these interventions may produce only small curative effect, so this article aims to emphasize the best evidences and provide clear, wise and prudent evidences for clinical decision by reviewing clinical researches about pain after spinal cord injury.

BACKGROUND:Occluder closure of atrial septal defect exhibits clear function, safety and efficiency advantages ＜br> OBJECTIVE:Using real-time three-dimensional echocardiography (RT-3DE) technique to evaluate the effect of atrial septal defect occlusion using different occluders on left ventricular structure and motion of the mitral annulus. ＜br> METHODS:Thirty-seven cases diagnosed as atrial septal defect underwent atrial septal defect occlusion, including 20 males and 17 females, aged 20-60 years. The occluder was chosen individual y according to defect size and edge hardness. Conventional and RT-3DE examinations were performed at 1 day prior to occlusion, 1 and 3 months after occlusion. ＜br> RESULTS AND CONCLUSION:Four of 37 patients were withdrawn from the study because of poor RT-3DE results. The other 33 patients harvested good occlusion results. At 1 and 3 months after occlusion, left ventricular end diastolic volume, left ventricular end systolic volume, left atrial end diastolic volume, left atrial end systolic volume were significantly increased (P＜0.05). Moreover, the more increase in these parameters occurred at 3 months after occlusion (P＜0.05). There were no significant changes in left ventricular ejection fraction and mitral annular displacement at three different time points. Left ventricular volume change rate and left atrial volume change rate were positively correlated to the type of occluders, while there was no correlation between endocardial cushion stump and mitral annular displacement. These findings suggest that atrial septal defect occlusion can increase the volume of the left ventricle and left atrium, but exhibit no effect on the motion of the mitral annulus.

The drugs promoting axon regeneration after spinal cord injury has been receiving high attention. Growth, extending and branching of neuron axon is a biological process mediated by cytoskeleton, and microtubule plays an important role on axon structure adjustment and growth. Taxol can reasonably stabilize microtubules, eliminate the obstacles of axon regeneration, and effect on axonal regeneration repair after spinal cord injury. Taxol is mainly used for anti-tumor therapy. This paper reviewed the researches on taxel and neuronal cytoskeletal microtubule.

Various functional proteins are differently expressed in each pathologic stage after spinal cord injury, representing injury and the pathological change of repair. Ideal biomarker is helpful to evaluate complicated biological reactions of spinal cord injury and predict prognosis. As specific serum markers of central nerve injury, neuron-specific enolase (NSE) and astrocyte primary calcium binding protein S-100β had been studied preliminarily, but the specificity and sensitivity need more research. Future efforts still need to develop ideal biomarkers to predict functional outcome.

Clinical practice of medical imaging technology undergraduates is a key link in the transformation from imaging technology students to imaging technologists. However, there are a series of problems leading to poor practice effect, e.g., imaging technology involves a lot of learning contents, and the teachers' level is uneven. Based on the above problems, some improvements have been implemented, including the establishment of the admission lecture system and tutor responsibility system, application of pluralistic teaching methods, standardizing the examination system of interns, flexible adjustment of practice time arrangements, training of practice teaching team, and so on. Finally, the quality and effect of undergraduate practice teaching in medical imaging technology has been improved significantly.

0.05). ALP activity of the cells on deproteinized bone was higher than that on decalcified bone(P