Objective To observe the clinical efficacy and adverse reactions between pemetrexed plus cisplatin and paclitaxel plus cisplatin in the treatment of advanced non-small cell lung cancer (NSCLC).Methods Forty-two cases with non-small cell lung cancer in our hospital from June 2013 to June 2015 were selected.Patients were randomly divided into observation group and control group with 21 cases in each group.The observation group was treated with pemetrexed plus cisplatin and the control group was treated with paclitaxel plus cisplatin.The clinical efficacy and adverse reactions were observed after two courses (21 days of a course) and the statistical analysis was performed.Results In the observation group and control group,response rate and clinical benefit rate were33.33％ (7/21),28.57％ (6/21) and76.19％ (16/21),71.43％ (15/21) respectively.No statistical significance were seen between the two groups (P＞0.05).The rate of hair loss (23.81％) (5/21) and the total number of adverse reactions (18.37％) (27/147) in the observation group were significantly lower than the rate of hair loss (47.62％) (10/21) and the total number of adverse reactions (25.17％) (37/147) in the control group (P＜0.05) No statistical significance was found in the incidence rate of leukopenia,neutropenia,erythropenia,thrombocytopenia,nausea and vomiting and phlebitis between the two groups (P ＞0.05) Conclusion Pemetrexed plus cisplatin is as effective as paclitaxel plus cisplatin in the treatment of advanced NSCLC with less adverse reactions and is much safer than paclitaxel plus cisplatin.Pemetrexed plus cisplatin is more valuable in the clinical treatment of advanced NSCLC.

Objective To analyze the influence from size parameters of minimally invasive vascular clamp on mechanical properties of small arteries. Methods The finite element simulation analysis on the process of minimally invasive vascular clamp clamping small arteries was performed. The influence patterns of 5 different sawtooth spacing, sawtooth heights and sawtooth lengths on mechanical properties of small arteries were studied. Results Larger sawtooth spacing led to smaller maximum equivalent stress of the clamped artery. The maximum equivalent stress of the small artery was not linear with the sawtooth height of the vascular clamp. The maximum equivalent stress of the small artery was the smallest and the vascular injury was the minimal when the swatooth height was 75 μm. The sawtooth length of the vascular clamp had an important influence on mechanical properties of clamped small arteries. The maximum equivalent stress of the artery was proportional to the sawtooth length of the vascular clamp. Conclusions The size parameters of minimally invasive vascular clamp had an important influence on mechanical properties in the process of clamping small arteries. The research findings can provide guidance for the design of the minimally invasive vascular clamp.