Objective To investigate the effect of ultrasound technology combined with Seldinger technique in the catheteration of peripherally inserted central catheter(PICC).Methods One thousand and eight malignant tumor patients undergoing PICC catheteration were divided into two groups:those with visible or palpable bouncy vein as the control group(n=540)and those with invisible or impalpable elbow vein as the experiment group(n=468).The control group were treated with PICC catheteration into the elbow vein as normal control group and in the experiment group the catheteration was done into the lower part of the upper arm of the basilic vein or brachial vein as the puncture point under the guidance of ultrasound with Seldinger technique.The two groups were compared in terms of success rate of one time puncturing, success rate of one time catheterization and postoperative phlebitis,venous thrombosis and catheter related infection rate.Result There were no significant difference in the success rate for one time puncturing,while the success rate of one time catheterization in the experiment group was significantly higher than that in the control group and the mechanical phlebitis,venous thrombosis,catheter related infection rate in the experiment group were significantly lower than those in the control group(P<0.001).Conclusion Ultrasound technology combined with Seldinger technique for PICC catheterization can obtain high success rate,lower postoperative complications and provide high security.

Objective To identify synovium-associated proteins of by analyzing proteome of FLS between RA patients and traumatic arthritis. Methods The total protein of FLS from 3 patients of RA and 6 normal controls were separated by 2-DE. The differentially expressed proteins were identified by MALDI-TOF-MS. Results The 2-DE image results showed that there were many proteins differentially expressed in FLS from RA and control. A total of 33 differential proteins that were up-regulated in RA as compared with controls were selected and 30 proteins including pyruvate kinase isozymes M1/M2, α-enolase, protein disulfide-isomerase A3 precursor, glutathione transferase, peroxiredoxin 1, ubiquitin-conjugating enzyme E2K, platelet-activating factor acetylhydrolase IB, dihydropyrimidinase-related protein 2, adenosine kinase, transaldolase, δ-δ-dienoyl-CoAisomerase, 26S protease regulatory subunit 6A, annexin All, tryptophanyl-tRNA synthetase isoform b, lamin-A/C, myomesin-1 isoform b, ruvB-like 1, actin-cytoplasmic 1, T-complex protein 1, stress-70 protein, mitochondrial precursor, α-crystallin B chain, 78 000 glucose-regulated protein, PSME4, SELENBP1 and so on. Conclusion The differentially expressed proteins are present in FLS from RA and control, which may be the synovium biomakers and involved in pathogenesis of RA.

Objective To evaluate the clinical efficacy of universal self-locking anatomical plate for acetabulum and pelvis (USAPAP) in the treatment of posterior acetabular fractures.Methods Data of 55 patients with posterior acetabular fractures who were treated with the USAPAP from January 2014 to January 2016 were retrospectively analyzed.There were 39 males and 16 females with an average age of 38.5 years old (range,17-82 years).There were 35 fractures on the left side while the other 20 fractures were on the right side,including 52 fresh cases and 3 old cases.According to Letournel-Judet classification,there were 32 cases of posterior wall,9 cases of transverse and posterior wall,5 cases of anterior column and posterior wall,2 cases of posterior column,2 cases of transverse,2 cases of two columns,1 case of anterior column and posterior hemitransverse,2 cases of Pipkin type Ⅳ.All patients were managed operatively by the USAPAP,which allows simultaneous fixation for two columns and quadrilateral surface fractures through a single Kocher-Langenback approach.The quality of reduction was assessed by Matta's score system.The mean follow-up period was 18.5 months (range,12-24 months).Average operation time was 95 min,and average blood loss was 350 ml.Average operation time of plate and screws fixation was 19 min,and average fluoroscopy times in the surgery was 2 times.The mean time of bony union was 4.3 months.According to the criteria described by Matta,the excellent and good rate of radiological score was 92.7％ (51/55),including 39 cases excellent,12 cases good and 4 cases poor.The excellent and good rate of Merle d'Aubigne-Postel score was 87.3％ (48/55),including 35 cases of excellent,13 cases of good,5 cases of fair,and 2 cases of poor.Heterotopic ossification occurred in 1 patient (Brooker type Ⅱ) at three months postoperatively.One case with Pipkin type Ⅳ fracture underwent total hip arthroplasty due to femoral head necrosis at seven months postoperatively.Complications including wound infection,sciatic nerve injury,screw invade joint,redisplacement of the fracture,avascular necrosis of bone fragment,hardware failure,nonunion or malunion was not found in any case at the latest follow-up.Conclusion The USAPAP through the single posterior Kocher-Langenback approach provides strong and stable fixation for complex acetabular fractures associated with posterior region including posterior wall,both columns and quadrilateral surface.Satisfactory clinical results can be achieved by the use of this method.

Objective To investigate the populations of freshwater crabs, the intermediate host of Paragonimus and Paragonimus infections in freshwater crabs in the Minjiang River basin along the middle section of Wuyi Mountain, so as to provide baseline data for parasitic disease control and research and expansion of the parasite resource bank. Methods From November 2020 to April 2021, freshwater crabs were sampled from streams and ditches neighboring residential areas in Jianning County and its neighboring Ninghua, Shaowu, Jiangle and Shunchang counties. The crab species was identified based on the morphological features of the terminal segment of the first abdominal appendage of male crabs, and Paragonimus infections were detected in freshwater crabs. The Paragonimus metacercariae were isolated, and the types of metacercariae were identified based on the metacercaria size, cystic wall thickness, and the excretory bladder and intestinal tract morphology. In addition, the prevalence, intensity and index of metacercaria infections were calculated in freshwater crabs. Results There were seven crab species found in Jianning County and six neighboring water systems along the Minjiang River basin, including Sinopotamon jianglense, S. fukinense, Huananpotamon lichuanense, H. lini, H. shenni, H. planopodum, Bottapotamon engelhardti, and there were metacercariae of three Paragonimus species detected in these crabs, including P. westermani, P. skrjabini and P. sanpingensis, with a prevalence rate of 43.6% (125/287). The infection rates of P. westermani, P. sanpingensis and P. skrjabini were 57.1% (48/84), 26.2% (22/84) and 61.8% (21/34) in S. jianglense, and the infection rates of P. westermani and P. sanpingensis were 52.6% (51/97) and 30.9% (30/97) in S. fukinense, while the rate of P. westermani infection was 6.9% (5/72) in H. lichuanense, which is the first record of P. westermani infections in H. lichuanense. Mixed P. westermani and P. sanpingensis infections were predominantly found in freshwater crabs sampled from Jianning County, where the rate of Paragonimus infections was 70.4% (76/108), with 15.3 metacercariae identified in each crab with Paragonimus infections and 1.9 metacercariae found in each gram of crabs with Paragonimus infections, and the index of metacercariae infections was 20.5. In addition, P. westermani, P. skrjabini and P. sanpingensi metacercariae were found in freshwater crabs sampled from Jianning-neighboring counties, where the rate of Paragonimus infections was 52.3% (56/107), with 9.8 metacercariae identified in each crab with Paragonimus infections and 0.9 metacercariae found in each gram of crabs with Paragonimus infections, and the index of metacercariae infections was 4.6. Conclusion There are multiple freshwater crab species and Paragonimus infection is high in freshwater crabs in Jianning County and its neighboring Minjiang River basin, which is a high-risk natural focus for Paragonimus infections.