The intelligent level of the modern medical equipments is higher than before and the automatic calibration circuits are largely used. The control circuit of the intelligent equipments is quite complicated and its working modes have been simplified to four-terminal or double terminal nets. The intelligent medical equipments such as CT, MRI, DR, PET/ CT have more chances to have some "soft" errors that are usually related to the zero-line calibration. In actual use, it can be noticed and performed, and the detecting and servicing for the medical equipments can be much easier than before.

Objective To study the diagnostic and monitoring values of the loss of heteroxygosity(LOH) of 3p loci in free plasma DNA of small cell lung cancer. Methods PCR silver staining was used for the detection of LOH of three microsatellite sites in the 3p loci of plasma free DNA and tissue of SCLC. Results In 33 cases of tissue, the incidence rate of LOH was 54.5%(18/33), but the positive rate of LOH in plasma free DNA was 42.4%(14/33). The correlation between them was 78.8%(14/18). Conclusion The plasma free DNA in patients with lung cancer is primarily originated from the tumor tissue. LOH of plasma free DNA may be valuable molecular markers in the diagnosis of SCLC.

Objective To study the diagnostic value of LOH and MSI of free DNA 3p microsatellite point in plasma of lung cancer patients. Methods Using PCR and sliver dye techniques, LOH and MSI of three microsatellite sites of plasma DNA on chromosome 3p in resected fresh tissue from 37 patients and whole blood sample from 94 patients were detected. Results The plasma free DNA concentration of most lung cancer patients was above microgramme level. Above 70% of tissues and plasma were positive. No significant difference was found at different stages and in different pathologic types. The result of patients with lymph node metastasis was significantly different from that of the patients without lymph node metastasis. Conclusion Plasma DNA of lung cancer patients is a good medium for gene diagnosis and may be used widely in the future.

Objective To study the effect of the plasma exchange in the treatment of RITP with 2∶2∶1 exchange liquid.Methods 32 cases of RITP were treated with plasma exchange using CS 3000 blood cell separator.Results Plasma exchange could reduce the levels of harmful substances like PA Ig,PA C 3,CIC and raise the levels of platelet by 3 times.Conclusion Plasma exchange is effective in the treatment of RITP with 2∶2∶1 exchange liquid,with reliable outcome.

Aged ; Cardiac Pacing, Artificial ; adverse effects ; Echocardiography ; methods ; Heart Failure ; diagnostic imaging ; etiology ; Humans ; Male

Child ; Electroacupuncture ; adverse effects ; instrumentation ; Electrolysis ; Equipment Failure ; Equipment and Supplies ; adverse effects ; Humans ; Male

Objective We conducted a systematic review and meta-analysis of the published literature to evaluate the efficacy of prophylactic antibiotics in the prevention of incisional infection of inguinal tension-free hernioplasty.Methods Articles of randomized controlled trials about the efficacy of prophylactic antibiotics in the prevention of incisional infection in the inguinal tension-free hernioplasty published from January 1975 to October 2012 was retrieved and systematically reviewed.Results A total of 11 randomized controlled trials meeting the inclusion criteria were screened.Among the 4159 cases of patients,130 cases had wound infection,and the infection rate was 3.13％.In the prophylactic antibiotics group of 1845 cases,wound infection occurred in 45 cases; the infection rate was 1.94％.In the control group of 2314 cases,85 cases had incision infection; the infection rate was 3.67％.The preventive use of antimicrobial drugs reduced surgical site infection of inguinal tension-free hernioplasty (OR 0.55,95％ CI 0.38-0.80,P =0.002).Conclusions The use of prophylactic antibiotics can effectively reduce the incisional infection in the inguinal tension-free hernioplasty.

ObjectiveTo discuss the changes in characteristics of N-glycan in gastric cancer and its relationship with TCM syndromes.Methods The blood samples of 138 gastric cancer patients and 120 healthy volunteers were collected. The changes in N-glycan were detected by DNA sequencer-assisted and fluorophore-assisted carbohydrate electrophoresis (DSA-FACE), and differences of N-glycan among different TCM syndromes were compared.Results At least 9 N-glycan peaks could be identified in all samples. Compared with the healthy volunteers, Peak1, Peak5, Peak9 and Peak2 of gastric cancer patients obviously increased (P<0.05,P<0.01), whereas Peak3, Peak6 significantly decreased (P<0.01). Peak6 of gastric cancer in stage I was obviously higher than stages II, III, and IV (P<0.01), while Peak9 in stage I was obviously lower than the other three stages (P<0.01). Peak1 was significantly lower in disharmony between liver and stomach type than stagnation of phlegm-dampness type, interior retention of toxin stagnation type, deficiency of both Qi and blood type (P<0.05,P<0.01);lower in impairment of yin due to stomach heat type, deficiency-cold in spleen and stomach type than deficiency of both Qi and blood type (P<0.01);lower in stagnation of phlegm-dampness type, interior retention of toxin stagnation type than deficiency of both Qi and blood type (P<0.05). Peak6 was higher in disharmony between liver and stomach type than impairment of yin due to stomach heat type, stagnation of phlegm-dampness type, interior retention of toxin stagnation type than deficiency of both Qi and blood type (P<0.01). Peak9 was much higher in deficiency of both Qi and blood type than disharmony between liver and stomach type (P<0.01), impairment of yin due to stomach heat type and deficiency-cold in spleen and stomach type (P<0.05, P<0.01).Conclusion The expression of N-glycan was specifically changed in gastric cancer. These variations could promote the metastasis of gastric cancer and potentially have certain correlation with TCM syndromes.

Ambulance is a kind of new medical technique vehicle along with the development of medical science.Many countries are developing new ambulances in order to satisfy the demand of the emergency highway accident rescue.The GPS communication system and the vehicular medical power design are the most important parts of the ambulances for their complicated technology.This article discusses these two problems.

Objective To observe the curative effect and recurrence rate of desmopressin acetate(DDAVP) combined with bladder training therapy on primary nocturnal enuresis(PNE) in chlidren.Methods One hundred children with PNE were randomly divided into control group and observation group(50 cases in each group).Children in control group were treated with simple DDAVP,and patients in observation group were treated with bladder training while DDAVP was using.The course of treatment were 3 months.The therapeutic effect between the 2 groups when the treatment was finished was compared and then followed up all the cases for 3 months to compare the near-term and long-term recurrence rate between the 2 groups.SPSS 13.0 software was used to analyze the data.Results The total effective rate in control group was 72.9%,and the near-term recurrence rate and the long-term recurrence rate were 22.9% and 54.3%,respectively.The total effective rate in observation group was 91.3%,and the near-term recurrence rate and the long-term recurrence rate were 11.9% and 28.6%,respectively.The total effective rate was significantly higher in observation group than that in control group(Z=-1.972,P=0.049).The near-term recurrence rate in 2 groups had no significant difference(?2=1.632,P=0.201).The long-term recurrence rate was extremely lower in observation group than that in control group(?2=5.249,P=0.022).Conclusions There is significant curative effect that DDAVP combined with bladder training therapy on PNE in children,and it can lower the long-term recurrence rate.