医学院校化学教学改革实践

目的以培养学生的能力为主旨，探索医学院校化学教学改革的可行性。方法从教学内容、教学形式、教学方法以及实验等方面人手，进行一系列改革。结果采取教改措施岳，学生的考试成绩逐年提高。结论教学改革有利于学生能力的提高。     

肺切除术影响围手术期右心功能

Objective To investigate the changes of perioperative right ventricular function after pulmonary resction. Methods 45 cases of pulmonary resection were divided into four groups.Group Ⅰwas wedge resection(n = 10), GroupⅡ was lobectomy(n = 19), Group Ⅲ was double lobectomy(n=7)and Group Ⅳ was pneumonectomy(n=9). The changes of CVP, PAMP, PEP/ET, Sa, VTIs, RVSP, Ea/Aa, and Tel were evaluated by traditional ultrasonic and tissue Doppler ultrasonic techniques at different time inter- vals (pre-operation, 5-7 days orland 1 month post-operation), Results Compared with the pre-operation CVP, the indexes of all groups have no significant changes post-operatively. Wedge resection didn' t obviously influence right cardiac after load and systolic function/diastolic function. No evidet changes detected in Tei pre-and post-operatively. However, the indexes (PAMP, RVSP and PEP/ET ratio) reflecting right cardiac afterload evidently increased at post-pneumonectomy or lobectomy group5- 7 days post-opera- tive. All these reflect the decrease of Tei, which was more obvious in pneumonectomy than in lobectomy group. Right cardiac after- load, systolic/diastolic function and Tel index recovered to pre-operative level 1 month post-operation in single lobectomy group. But the above indicators, especially the Tel, were still high in double lobectomy and pmeunonectomy groups 1 morth post-operation.Tei index is positively correlated with PAMP and is weakly correlated with PET/ET ratio and Ea/Aa ratio. Conclusion Pulmonary wedge resection doesn't evidently influence right cardiac function. However, right cardiac diastolic function evidently decreases temporarily at lobectomy group. The systolic function and diastolic funetions decrease after double-lobectomy and pneumonectomy and it's more evident in pneumonectomy group. Though the right cardiac afterloads of lobectomy, double lobectomy and pneumonectomy groupa all increase significantly post-operativlye, only the former recover to pre-operative level 1 month after surgery.     

根管倒充填材料微渗漏的实验研究

采用核素扩散法比较玻璃离子体黏固粉(GIC)与银汞合金用作根管倒充填材料微渗漏的大小,GIC可以考虑替代银汞合金,用于根管倒充填.     

麻醉药物脑保护作用的研究概况

脑代谢率非常高 ,缺血严重则影响神经元代谢。某些麻醉药可以影响缺血过程中的某些因素 ,从而减轻神经元不可逆损伤。药理性脑保护的概念可追溯到 2 0世纪 70年代 ,麻醉药抗缺氧缺血性神经损伤的保护作用机制的早期理论认为 ,麻醉药和麻醉状态减少生理电活动 ,从而降低伤害期间     

肝硬化并上消化道大出血应用善得定的观察与护理

肝硬化门静脉高压引起的食道和胃底静脉曲张破裂出血，是肝硬化主要的死亡原因之一，是肝硬化较常见的、较危重并发症。我科自2000年2月以来，应用善得定治疗肝硬化并上消化道大出血68例，取得满意的效果，这不仅取决于正确的治疗，而且与护士精心，周到的护理密不可分，现将我们的临床观察和护理体会报告如下。