Objective To explore the teaching effect of acute poisoning course among students majoring in rescue medicine. Methods From March to June 2013, 30 students majoring in rescue medicine were randomly divided into two groups for the clinical practice. Case-based learning was used in experimental group and cases was tracked from one department to another in chronological order or in reverse order to explore the cause of poisoning and the development of disease and to ob-tain the complete medical records of patients. Traditional rotating internship was used in control group. Poisoning cases in the department were taken as the starting point and end point and the medical records of patients were obtained. The clinical teaching effect was compared between the two groups through questionnaire survey and final examination. The data were calculated by SAS 9.2 software, mean comparison between the two groups was conducted by t test and enumeration data were analyzed by chi-square test. P<0.05 stands for statistically significant difference. Results The number of cases in the experimental group was more than that in the control group during the same internship period ((15±3) vs. (9±5),P<0.01). Skill score of experimental group was significantly higher than that of the control group((79.1±6.9) vs. (66.2±6.7), P<0.01). Theory examination results between two groups had no obvious difference((88.4±5.7) vs. (87.8±6.3),P>0.05),however, theory examination results were increased significantly in this year compared with those of previous year((88.1±6.0) vs. (79.3±12.8), P<0.01). Questionnaire survey demonstrated that teachers and students' satisfaction were 95.3%(143/150) and 93.3%(140/150) respectively regarding the ten advantages of the track-ing type internship. Conclusions Tracking type internship with poisoning case-based learning is a good combination of lecture-based learning and problem-based learning. It is helpful to cultivate and exercise students' ability to apply the knowledge.

Objective To observe the therapeutic effect of anti-inflammatory combined with cedilanid and diuretic therapy for treatment of patients with senile pneumonia and lung cancer accompanied by pleural effusion and to investigate the changes of concentrations in plasma levels of B-type natriuretic peptide(BNP)and C-reactive protein(CRP),procalcitonin(PCT)before and after treatment. Methods From July 2012 to January 2013, a prospective study was carried out to investigate 57 emergently hospitalized patients with pleural effusion,and according to the etiology,they were divided into two groups:a senile pneumonia group(30 cases)and a lung cancer group(27 cases). The same therapeutic measures were taken in the two groups,such as anti-infection,enhancement of cardiac function,diuresis,and limitation of the amount of liquid intake. Respectively,all the patients took the CT scan of the chest before treatment and on the 7th day after treatment,and at the same time,plasma concentrations of BNP,CRP and PCT were detected. Results ①According to the gradation of the New York Heart Association (NYHA),before treatment most of the cardiac function of patients in pneumonia group was at the Ⅲ grade,while that in the lung cancer group was at theⅠgrade,and the incidence of congestive heart failure(CHF)in pneumonia group was significantly higher than that in lung cancer group(86.7% vs. 14.8%,P<0.01). Before treatment,the plasma BNP level in pneumonia group was obviously higher than that in lung cancer group(ng/L:582.67±126.53 vs. 146.27±43.77,P<0.01);compared with that before treatment,BNP was significantly decreased in the pneumonia group(ng/L:225.59±131.33,P<0.05)after treatment,but no such obvious change in the lung cancer group(ng/L:149.34±51.05)was seen. The therapeutic effect of pleural effusion in the pneumonia group was markedly better than that in lung cancer group〔cure:70.0%(21 cases)vs. 0(0),P<0.01〕. ②Before treatment,the plasma levels of CRP and PCT in pneumonia group were remarkably lower than those in lung cancer group(both P<0.05);after treatment,CRP and PCT levels were decreased or decreased to close to the normal physiological range in patients of the two groups,but the comparisons between the two groups there were no statistically significant differences〔CRP(mg/L):20.21±16.32 vs. 22.76±18.53,PCT(ng/L):0.46±0.13 vs. 0.55±0.17,both P>0.05〕. Anti-inflammatory effect in pneumonia group was much superior to that in lung cancer group〔basically cured:86.7%(26 cases)vs. 0(0),P<0.05〕. In pneumonia group,the decrease of the above two indexes after treatment was consistent with the pneumonia shadow dissipation,while in the lung cancer group,no such consistency was found,apparently,the latter phenomenon was associated with the tumor invasive occupation. Conclusion To detect the concentration changes of plasma BNP, CRP and PCT has important clinical significance in screening the cardiac insufficiency and evaluating the curative effect of anti-inflammatory combined with cedilanid and diuretic therapy in patients of lung diseases complicated by pleural effusion.