Objective To investigate the effects of digestive and various nutritional indexes of elderly critically ill patients by using whole protein-based enteral nutrition(JEVITY) riched in dietary fiber and fructose oligosaccharides.

Analysis of risk factors influencing morbidity and motality after pancreaticoduodenectomy in senile patients;

Analysis of mycotic superinfections and the use of antimicrobials in senile patients;

Administration of esmolol during operation decreased the consumption of fentanyl in senile patients and its safety;

Influence of different PETCO_2 on the heart rate variability of elderly patients during the period of general anesthesia;

Retrospective analysis of delayed emergence in 15 elderly patients from general anesthesia;

Analysis of the related factors of falls in elderly patients and investigation on their recognition to the prevention of falls;

Comparison of Penehyclidine Hydrochloride and Atropine used as premedication of total intravenous general anesthesia in elder patients;

Influence of acute high capacity hemodilution in induction period of general anesthesia on blood biochemistry of elder patients;

Application of Clindamycin Hydrchloride treating elder patients with respire infection;

Analysis of drug resistance of coagulase-negative staphylococcus from nosocomially acquired lower respiratory tract infection in senile patients

OBJECTIVE To investigate the use of antibacterial angents of hospitalized senile patients.

OBJECTIVE:To investigate the use of antibiotics of out-patients(including senile patients) and analyze its rationality in use.