Bidding invitation and procurement of medical equipment is one of the most important works in hospital.It can increase the working efficiency to hold the key taches of medical equipment procurement from 4 aspects including the science of decison-making,the comfirmability of bidding invitation,the right choice of the way of bidding,etc.So some important taches of medical equipment procurement are analyzed and discussed and some points for attention are raised.[Chinese Medical Equipment Journal,2008,29(2):76-77]

Data quality issues of TCM structured data warehouse system is very important.This paper analyzed the data quality issues from the data repository to the data extraction,cleansing,transformation,loading (ETL) into the data warehouse process and established the principle of corresponding control,and researched improving data quality measures to ensure the success of data warehouse and right decision support.

Objective:This paper aims to explore the relationship between the residents’ health and economic de-velopment to provide a scientific basis which will promote the coordinated economy and health development. Methods:Adopting the entropy method, we could calculate the comprehensive health evaluation index. In combining the co-inte-gration and error correction models, we could analyze the long-term and short-term relationships between our country residents’ level of health since 2000 and the national macro-economic development information. The Granger causality test served as a good method used in testing the casual relationships. Results: The health and economic development has a co-integration relationship which is -0. 6216 in the short-term correction. The economic development extent is the Granger cause of residents’ health status. Conclusion:There is not only a long-term equilibrium, but also a short-term relationship between the residents’ health and economic development in our country. The economic growth pro-motes residents’ health status while the promotion of residents’ health to economic growth is not obvious.

Objective To study the cerebral energy metabolism changes of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) through hydrogen magnetic resonance spectroscopy examination (1 HMRS ) and its relationship with partial pressure of oxygen / carbon dioxide tension.Methods Totally 13 cases of AECOPD patients and 10 cases of age-matched healthy people underwent HMRS examination.The ratios of n-acetyl-aspartate(NAA)/creatine(Cr),choline (Cho)/Cr,myo-inositol(MI)/Cr of parieto-temporal and occipital areas of brain were detected.Blood gas analysis were also used to detect partial pressure of oxygen (PaO2) and carbon dioxide (PaCO2).Results NAA / Cr of parieto-temporal and occipital areas of brain (1.32±0.12,1.48±0.12) were lower in AECOPD group than those in control group (1.45±0.11,1.58±0.10) (P＜ 0.05),MI/Cr (0.23±0.07,0.30±0.11) were also decreased compared with control group (0.40±0.14,0.46±0.12) (P＜ 0.01),while Cho/Cr of parieto -temporal and occipital areas of brain between the AECOPD group and control group showed no significant difference (P＞0.05).NAA/Cr of parieto temporal and occipital areas of brain were positively correlated with PaO2 (r=0.46 and 0.44),and MI/Cr of these areas of brain were also positively related with PaO2 (r=0.63 and 0.50),but MI / Cr of parieto tempora was negatively correlated with PaCO2 (r =- 0.472). Conclusions Cerebral metabolite changes may occur in AECOPD patients,and this has relationship with hypoxia and carbon dioxide retention.

Objective To evaluate selective retention of the great saphenous vein (GSV) belowknee in the prevention of saphenous nerve injury during varicose veins surgery.Methods From January 2009 to January 2012,280 consecutive patients with incompetence of the GSV resulting in varicose veins were prospectively randomized into 2 groups.Patients in the experimental group underwent stripping restricted to the below knee level,patients in control group underwent GSV stripping to the ankle level Patients in the two groups were treated with transilluminated powered phlebectomy,and foam sclerotherapy.Primary end points were postoperative pain,saphenous nerve injury,quality of life and recurrence rate.Results After one month follow-up:5.71％ patients had symptoms of nervous system in the observation group,14.29％ patients had symptoms of nervous system in the control group (P =0.02).After 1 year follow-up,1.47％ patients had symptoms of nervous system in the observation group,7.14％ patients had symptoms of nervous system in the control group (P =0.02).Conclusions Selective retention of great saphenous vein below-knee decreases saphenous nerve injury.

Objective To explore the effect of a multimodal electroencephalogram ( EEG) data visualiza-tion system on the motor imagery ability of stroke survivors. Methods Twenty stroke patients were randomly di-vided into an experimental group and a control group, each of 10. Both groups were provided with brain-computer interface-based motor imagery ( MI) training. At the same time, the experimental group was monitored and guided using an online, multimodal EEG data visualization system developed in our department. The classification accuracy ( CA) and event-related desynchronization ( ERD) of the 2 groups′ motor imagery were compared before and after the treatment. Results Before the treatment, no significant differences in the average CA of MI were found be-tween the experiment group (50.92±2.08) and the control group (49.35±4.20)(P>0.05). After the treatment, however, the experimental group′s average CA had increased to (64.52±5.27), significantly higher than that of the control group (51.18±5.02). When the stroke patients imaged affected upper extremity movements, obvious ERD was observed in the α frequency around the bilateral central motor regions of both groups, especially in the experi-mental group, but without significant differences between the two groups. However, no significant changes were found in the ERD of theβwaves of the two groups( P>0.05) . Conclusion The proposed online multimodal elec-troencephalogram data visualization system can help stroke patients imagine movements actively. It is worth sprea-ding in clinical practice.

OBJECTIVETo compare the difference in the efficacy on thoracic facet joint disorder between the combined therapy of electroacupuncture and manual reduction and the simple manual reduction.

METHODSOne hundred and sixty patients were randomized into an electroacupuncture and manual manipulation group (group A) and a simple manual manipulation group (group B), 80 cases in each one. In the group A, Ashi points and three pairs of Jiaji (EX-B 2) bilateral to the painful sites were selected. The perpendicular puncture was used at Ashi points, the oblique puncture was used at Jiaji (EX-B 2) and connected with electric stimulation for 20 min, additionally, the corresponding manual reduction was adopted at the sites of facet joint disorder. In the group B, the simple manual reduction was applied to the affected sites. Acupuncture was given once every day, the manual reduction was applied once every 10 days. The treatment of 10 days made one session. The efficacy was analyzed statistically at the end of two sessions of treatment. Before and after treatment, McGill pain scale was adopted for the value statistical analysis. PRI score, VAS score and PPI score of patients were calculated before and after treatment and compared in the two groups. The efficacy was compared between the two groups.

RESULTSThe curative rate was 56.3% (45/80) in the group A, which was better than 18.8% (15/80) in the group B (P< 0.01). The total effective rate was 95.0% (76/80) in the group A, which was better than 76.3% (61/80) in the group B (P<0.01). The scores of PRI, VAS and PPI after treatment were all improved significantly in the two groups (all P<0.05), in which, the results in the group A were better than those in the group B (PRI: 4.00 +/- 0.97 vs 5.44 +/- 1.16, VAS: 3.29 +/- 0.72 vs 3.87 +/- 0.81, PPI: 1.07 +/- 0.74 vs 1.64 +/- 0.90, all P<0.05).

CONCLUSIONThe combined therapy of electroacupuncture and manual manipulation achieves the superior efficacy on thoracic facet joint disorder as compared with the simple manual manipulation. The combined therapy relieves the symptoms of thoracic facet joint disorder and reduces the severity of disorder.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Electroacupuncture ; Female ; Humans ; Male ; Middle Aged ; Thoracic Diseases ; therapy

Objective To assess the safety and efficacy of a novel technology referred to as percutaneous ureteroscopic laser deroofing in the management of renal cysts.Methods From November 2014 to August 2016,59 patients having surgical indications with renal cysts were enrolled and evaluated by ultrasound and CT scan.Of all the 59 patients,36 were males and 23 were females.Their mean age was 46 years (ranging 35-64 years).41 patients complained about the reported flank and abdominal pain.18 patients were found by imaging examination.Their mean diameter of cyst was 6.3cm(ranging 4.9-9.1cm).In regards to the 59 patients,include 6 patients suffered with parapelvic cysts and 4 patients suffered with renal cyst complicated with ipsilateral renal calculi.Their mean stone surface area was 5.7 cm2 (ranging 3.4-9.8 cm2).All of the patients received combined spinal and epidural analgesia or paravertebral nerve block anesthesia.Patients were placed in the prone position for percutaneous puncture and tract dilation.Under ultrasound guidance,an eighteen gauge needle was placed inside the cyst cavity percutaneously,a metal guidewire was introduced followed by sequential dilation up to F26-28.9.8F rigid ureteroscope was inserted through the Amplazt access sheath and advanced into the cyst cavity.Then sheath and ureteroscope both returned to the exterior cyst together.Cyst wall was dissociated from perirenal adipose tissue by used ureteroscope.A majority of the collapsed cyst wall was grasped and gently pulled towards the Amplazt sheath interior using grasping forceps and incised using either Thulium (Power 40 ～50W) or Holmium laser(Power 60 ～70W) and was taken for pathological examination.Nephrostomy tube was left in place for 2-3 days and removed before discharge.For parapelvic cysts patients,ureter stent was inserted into the renal pelvis i n the dorsal lithotomy position firstly.Patients were then placed in the prone position for percutaneous puncture and tract dilation.Laser was used to incise cyst wall towards identified pelvis to create a permanent communication between the cyst and adjacent renal collecting system.F6 double-J stent was inserted into the cyst cavity at the end to prevent auto-closure for at most two months.F22 nephrostomy tube was left in renal pelvis for two weeks.For renal cyst complicated with ipsilateral renal calculi patients,a puncture was created targeting the stone through the cyst,after fragmenting and extracting the stone,the same laser was used to deroof the cyst.More than 50％ reduction in cyst volume was considered a success.The perioperative complications,hospitalization days and the effective rate of surgery were evaluated.Results All operations were conducted without intraoperative complications such as bleeding,urinary leakage or injury of the renal parenchyma and the adjacent organs.The hospital stay after the surgery was 2-4 days (mean 2.5 days).After 3-12 months follow-up (mean 8.1 months),patients underwent imaging examinations.42 out of 59 cases were completely resolved,15 were reduced to less than 50％,the total effective rate for the operation is 96.6％ (57/59).4 patients with ipsilateral renal calculi were completely clear.However,two cases failed probably due to incomplete resection and follow treated with laparoscopic renal cyst deroofing.Conclusions Percutaneous ureteroscopy renal cyst laser deroofing is a safe,effective,less invasive,which can be performed in any endourological center without the need of special instruments and training.

Objective To investigate the effects of total flavonoids in Gingko Biloba on glucose and lipid metabolism and liver function in rats with insulin resistance. Methods Forty SD rats were randomly divided into normal control group,model group,total flavonoids in Gingko Biloba group and rosiglitazone group(positive drug control group)(n=10).Models of insulin resistance were established by high glucose and high fat diet in model group,total flavonoids in Gingko Biloba group and rosiglitazone group.After treatment for 12 weeks,serum glucose,serum lipids,and parameters of insulin resistance,liver function and anti-oxidation capability were detected in each group,and histologic observations of liver tissues were conducted with adipose staining. Results The serum glucose,insulin resistance index(HOMA-IR),insulin action index(IAI),serum total cholesterol(TC),triglyceride(TG),liver malondialdehyde(MDA) and serum transaminase activity in total flavonoids in Gingko Biloba group were significantly lower than those in model group(P

Objective To explore the clinical characteristics of the lesions of spinal cord and optic nerve as the onset of neuromyelitis optica (NMO).Methods A total of fifty-one patients with myelitis or optic neuritis (ON) as the onset of NMO who hospitalized in our Neurology Department during October 2010 to October 2012 were enrolled in the study.Clinical presentations and MRI findings of the spinal cord and brain were studied.Results (1) A total of 26 cases (51.0％) presented with myelitis as the index event,in which 30.8％ (8/26) were the longitudinally extensive transverse myelitis (LETM) and 69.2％ (18/ 26) were non-LETM (short segmental myelitis or non-transverse myelitis).Patients with non-LETM as the onset were found to have better prognosis than those with LETM (full recovery ratio was 13/18 vs 2/8,P ＜ 0.05),while shorter recurrence interval of myelitis and higher recurrence frequency of events were shown in patients with non-LETM (11.1 vs 18.6 months,3 times per year vs once per year,with all P ＜ 0.05).(2) A total of 25 cases (49.0％) presented with ON as the index event with 24.0％ (6/25) of unilateral ON and 76.0％ (19/25) of bilateral ON.Patients with bilateral ON had more severe visual impairment and shorter first remission period than those with unilateral ON (P ＜ 0.05).Conclusion Non-LETM and bilateral ON are the most common index demyelinating events in NMO cases.