[Objective]To analyse the clinical effect of total knee resurface replacement treatment for advanced knee gouty arthritis. [Method]From March 2001 to July 2007,nine patients with advanced gouty knee arthritis(total 10 knees) were treated with total knee resurface replacement with posterior stability prosthesis in the author's research group.Among them,eight patients had unilateral knees and one had bilateral knees.Following-up data were successfully obtained.[Result]All the patients were followed up for at least one year.HSS Score system revealed that six knees were rated as excellent,two as good and two as fair.Either preoperative or follow-up HSS scores was analysed by T-test and their significant differences were observed(P

Objective To observe the effect of Hawthorn Jiangzhi powder on blood lipids in hyperlipidemia patients.Methods Four hundreds and eighty-four patients with hyperlipidemia were selected from Department of Cardiology in Huanghuai University Affiliated Hospital from January 2011 to June 2016,and they were divided into observation group and control group by random number table,each group 242 cases.The observation group took orally Hawthorn Jiangzhi powder (including ingredients:hawthorn 6 g,salvia miltiorrhiza 18 g,black soybean 16 g,hoelen 6 g,ganoderma lucidum 9 g,kudzuvine root 6 g,Chinese yam 6 g,fructus amomum 9 g,coix seed 16 g,cassia seed 6 g) once 6-9 g powder,twice a day,once in the morning and another in the evening;the control group was given simvastatin,20 mg each day during taking dinner;the therapeutic period lasted 2 months in both groups.The differences in serum lipid and serum inflammatory factor levels were compared before and after treatment in the two groups;the changes of lymphocyte subsets of the two groups were observed and compared with the changes of the subset results of 100 normal healthy subjects aged 35-80 years old in the same period in our hospital,and the total efficiency,the situations of adverse reactions and liver and kidney functions of two groups were observed.Results In the observation group and the control group,before treatment the levels of CD4+,CD8+,CD4+/CD8+ were lower than those of healthy control group,but after treatment the levels of CD4+,CD8+ and CD4+/CD8+ were higher than those before treatment,and the changes of the observation group were more significant than those of the control group(CD4+:0.47±0.11 vs.0.40±0.10,CD8+:0.28 ± 0.10 vs.0.26 ± 0.08,CD4+/CD8+:1.67 ± 0.79 vs.1.53 ± 0.45);After treatment,the levels of hypersensitive C-reactive protein (hs-CRP),interleukin-6 (IL-6),von Willebrand factor (vWF) and homocysteine (Hcy) in the two groups were significantly lower than those before treatment,and the levels of hs-CRP,IL-6 and vWF in the observation group were obviously lower than those in the control group [hs-CRP (mg/L):5.1 ± 1.8 vs.5.8 ± 1.7,IL-6 (ng/L):2.9 ± 1.6 vs.3.7 ± 1.8,vWF:(126.8 ± 12.8)％ vs.(156.5 ± 11.3)％,all P ＜ 0.05].After treatment,Hcy in the observation group was lower than that in the control group,but there was no significant difference between the two groups (μμmol/L:5.2 ± 1.8 vs.5.4 ± 2.6,P ＞ 0.05).In the observation group after treatment at each time point,the levels of total cholesterol (TC),triglyceride (TG) and low density lipoprotein cholesterol (LDL-C) were lower than those before treatment,while the levels of high density lipoprotein cholesterol (HDL-C) and high density lipoprotein cholesterol/total cholesterol (HDL/TC) were higher than those before treatment;after treatment in the control group,the levels of TC,TG and LDL-C were decreased,and the levels of HDL-C and HDL/TC were obviously increased compared with those before treatment;The levels of TC,TG and LDL-C in the observation group after treatment for 2 months were significantly lower than those in the control group [TC (mmol/L):1.26 ± 0.57 vs.2.26 ± 0.56;TG (mmol/L):3.45 ± 0.78 vs.5.45 ± 0.75,LDL-C (mmol/L):2.40±0.65 vs.2.72±0.85;all P ＜ 0.05),and HDL/TC was obviously increased (1.19±0.15 vs.0.62±0.35,P ＜ 0.01).The total therapeutic effective rate of the observation group was significantly higher than that of the control group [90.1％ (218/242) vs.73.4％ (178/242),P ＜ 0.01].Adverse reactions and changes of liver and kidney functions during the period of treatment in the two groups were minimal.Conclusions Hawthorn Jiangzhi powder can effectively reduce the blood lipids and serum inflammation cytokines in patients with hyperlipidemia,improve blood rheological situation,reduce serum levels of inflammatory factors,inhibit the formation and development of atherosclerosis and enhance the immune function obviously in patients with high lipid abnormalities.

Objective: To investigate thoracic endovascular aortic repair (TEVAR) and “Chimney” technique for treating the involved left common carotid artery (LCCA) or left subclavian artery (LSA) in Standford B patients with aortic lesion and in-sufficient proximal anchoring area. Meanwhile, to explore the relationship between endoleaking condition and the location of lesion with the prognosis. Methods: A total of 32 relevant patients treated by TEVAR + “Chimney” technique in our hospital from 2011-09 to 2015-07 were retrospectively analyzed. Immediate post-operative image development of LCCA or LSA was observed; cerebral complications, severe upper limb ischemic symptoms and endoleaking conditions were recorded. The patients were followed-up for (3-46) months. Results: Thoracic aortic stent-graft placement was successfully carried out in all 32 patients. Immediate post-operative image development of LCCAor LSAwas favorable, no cerebral complications and no severe upper limb ischemic symptoms were observed. There were 7 patients suffered from endoleak at aortic arch including 6 with the lesion located at the greater curvature side and 1 at the small curvature side. During follow-up period, aortic stent-graft remained in a stable condition and the blood flow in “Chimney” stent was unobstructed. Endoleking condition was gradually reduced and disappeared in 5 patients, it was persisted in 2 patients. Conclusion: “Chimney” technique may prolong anchoring area and keep LCCA or LSA unobstructed, therefore expand the indication of TEVAR in a mini-invasive, safe and effective way. When aortic lesion located at the greater curvature side, the endoleaking probability could be increased.

Objective To explore the association between fibroblast growth factor 23 (FGF-23) and calcium (Ca)-phosphorus(P) metabolism and bone mineral density (BMD) in patients on peritoneal dialysis.Methods Fifty-nine patients undergoing continuous ambulatory peritoneal dialysis(CAPD) were enrolled in this study.These patients were divided into three groups as normal, osteopenic and osteoporotic, according to World Health Organization criteria based on bone mineral density T scores.Another 30 healthy people were also enrolled as control group.Levels of serum FGF-23 and 1,25 (OH)2VitD3 were measured by ELISA.Parathyroid horomone(PTH) was detected by immunoradiometric assay.Calcium and phosphorus were assessed with autobiochemistry machine.Bone density was studied by dual-energy X-ray absorptiometry (DEXA).Results The incidences of osteoporosis at the femur neck and lumbar spine in CAPD patients were 23.7％ and 35.6％, respectively.Among three groups of CADP patients, no significant differences were found in the levels of serum FGF-23, while the level of serum FGF-23 in CAPD group was higher than that in control gronp(P＜0.01).A positive correlation was found between log [FGF-23]and serum phosphorus(r=0.604, P＜0.01).However, a negative correlation was found between log[FGF-23]and 1,25(OH)2VitD3 and GFR (r=-0.401, P＜0.05; r=-0.651, P＜0.01).There were no correlations of log [FGF-23]with PTH, Ca, T scores and the duration of dialysis.Conclusions In CAPD patients, serum FGF-23 increases significantly.Serum phosphorus, renal function and 1,25(OH)2VitD3may play an important role in adjusting the level of serum FGF-23, while FGF-23 has no direct effect on bone mineralization in CAPD patients.

The method of subblock coding for medical image compression is presented by means of the integer lifting wavelet transform. The integer lifting wavelet transform has better effects on improving the processing speed; it can achieve wavelet transform for arbitrary size image and accomplish the transform at current position; furthermore, it can save memory space. The lifting algorithm can deal with the lossless compression and loss compression of image simultaneously, so it is adapted to telemedicine system and medical image compression system. The compression method based on image subblock coding can not only realize controlling BR (bit ratio), but also realize SNR (signal noise ratio) and suit for progressive transform.
Algorithms ; Data Compression ; methods ; Humans ; Image Interpretation, Computer-Assisted ; methods ; Information Storage and Retrieval ; methods

OBJECTIVETo evaluate the diagnostic value of 3.0T high-resolution MRI in mesorectal lymph node metastasis of rectal cancer.

METHODSThe images and postoperative pathological data of patients with pathologically diagnosed rectal cancer who underwent prospective 3.0T two dimensional high-resolution MRI rectal examinations and surgery within two weeks after MRI examination at the First Affiliated Hospital, Sun Yat-sen University from November 2015 to November 2016 were retrospectively collected. Patients who received preoperative neoadjuvant therapy and those who did not undergo operation after MRI examination were excluded. The MRI sequences included high-resolution sagittal, coronal and oblique axial T2 weighted image (T2WI) (repetition time/echo time, 3000-4000 ms/77-87 ms; slice thickness/gap, 3 mm/0 mm; field of view, 18-22 cm). Two abdominal MRI radiologists independently assessed the morphology, margin, signal of all visible mesorectal nodes, measured their minor axes (three times for each radiologist) and gave estimation of the malignancy. The criteria of metastatic nodes on high-resolution MRI T2WI were nodes with irregular shape, ill-defined border and/or heterogeneous signal. The results of MRI diagnosis were compared with postoperative pathology. The sensitivity, specificity, accuracy, positive predictive value(PPV) and negative predictive value(NPV) of mesorectal nodes and nodes with different short-axis diameter ranges were calculated to evaluate the diagnostic efficiency of high-resolution MRI. Kappa statistics was used to evaluate the agreement for per node and for per patient between high-resolution MRI and pathological results. A Kappa value of 0-0.20 indicated poor agreement; 0.21-0.40 fair agreement; 0.41-0.60 moderate agreement; 0.61-0.80 good agreement; and 0.81-1.00 excellent agreement.

RESULTSA total of 81 patients were enrolled in the retrospective cohort study, including 50 males and 31 females with age of (59.3±11.1) years. Histopathology showed 1 case of well differentiated adenocarcinoma, 63 of moderately differentiated adenocarcinoma, 9 of moderately to poorly differentiated adenocarcinoma, 2 of poorly differentiated adenocarcinoma, 3 of mucinous adenocarcinoma and 3 of tubulovillous adenocarcinoma. Histopathological staging showed 2 cases in T1 stage, 20 in T2 stage, 45 in T3 stage and 14 in T4 stage; 34 in N0 stage, 40 in N1 stage and 7 in N2 stage; 76 in M0 stage and 5 in M1 stage. A total of 377 nodes were included in the node-by-node evaluation, of which 168 (44.6%) nodes were metastatic from 58.0% (47/81) patients. The median short-axis diameter was 5.4(2.4-18.6) mm in metastatic nodes, which was significantly larger than 3.8 (2.0-8.7) mm in non-metastatic nodes[Z=10.586, P=0.000]. The sensitivity, specificity, accuracy, PPV and NPV were 74.4% (125/168), 94.7% (198/209), 85.7% (323/377), 91.9% (125/136) and 82.2% (198/241), respectively. The Kappa values between high-resolution MRI and histopathological diagnosis for node-by-node and patient-by-patient were 0.71 and 0.70 respectively, indicating good agreements. Fourteen nodes >10 mm were all metastatic. The results of high-resolution MRI for nodal status were consistent with the results of histopathological diagnosis, and the sensitivity, accuracy and PPV were all 100.0%. Among 124 nodes with short-axis diameter of 5-10 mm, 95 (76.6%) were metastatic, and the sensitivity, specificity, accuracy, PPV and NPV were 78.9% (75/95), 86.2% (25/29), 80.6% (100/124), 94.9% (75/79) and 55.6% (25/45), respectively. The agreement was fair (Kappa value 0.55) between high-resolution MRI and histopathological diagnosis. Among 239 nodes with short-axis diameter ≤5 mm, 59(24.7%) were metastatic, and the sensitivity, specificity, accuracy, PPV and NPV were 61.0% (36/59), 96.1%(173/180), 87.4%(209/239), 83.7%(36/43) and 88.3%(173/196), respectively. The agreement was good (Kappa value 0.63) between high-resolution MRI and histopathological diagnosis.

CONCLUSIONRectal high-resolution MRI has good diagnostic value for estimating metastatic mesorectal nodes by evaluating the morphology, margin and signal of nodes.

Aged ; Female ; Humans ; Lymph Nodes ; Lymphatic Metastasis ; diagnostic imaging ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neoplasm Staging ; Prospective Studies ; Rectal Neoplasms ; diagnostic imaging ; pathology ; Retrospective Studies ; Sensitivity and Specificity

AIM: To investigate the efficacy of lacrimal duct laser dacryoplasty combined with intubation and postoperative meibomian gland treatment in patients with chronic dacryocystitis complicated by meibomian gland dysfunction.METHODS: Data were collected from 128 patients with chronic dacryocystitis complicated by meibomian gland dysfunction treated at Xi'an No.1 Hospital from March 2021 to December 2022. All patients underwent lacrimal duct laser dacryoplasty combined with intubation. Postoperatively, those patients were randomly divided into two groups: group A(64 cases, without meibomian gland treatment)and group B(64 cases, with meibomian gland treatment). The lacrimal intubation was removed at 3 mo after surgery to evaluate the patency rate of lacrimal irrigation. Additionally, changes in the ocular surface disease index(OSDI)score, non-invasive tear film break-up time, tear meniscus height, conjunctival hyperemia analysis, meibomian gland analysis, tear lipid layer thickness, tear ferning test, and conjunctival impression cytology were compared between the two groups.RESULTS: The lacrimal irrigation patency rates in the group A and group B were 78.1% and 81.2% respectively, with no statistically significant difference between the two groups(P>0.05); compared with the group A, group B showed a significant extension in non-invasive tear breakup time at 3 mo after surgery, and the OSDI score, conjunctival hyperemia analysis, tear ferning test and conjunctival impression cytology grading were all significantly decreased(all P<0.05), while there was no significant difference in tear meniscus height, tear lipid layer thickness and meibomian gland loss score between the two groups(all P>0.05).CONCLUSION: Comprehensive treatment for patients with chronic dacryocystitis combined with meibomian gland dysfunction have improved patients' comfort, tear film stability, and reduces local inflammatory response. It is important to simultaneously address ocular surface microenvironment abnormalities during surgical treatment to achieve satisfactory efficacy.