Objective To investigate the diagnostic value of DTI anisotropy parameters in breast malignant tumors.Methods Fifty four patients,including 33 patients with malignant tumors and 21 patients with benign lesions,were retrospectively analyzed.The E1,MD and FA of lesions were measured and compared by paired t test between the malignant tumors and the contralateral healthy breast tissue.The difference between malignant tumors and benign lesions was analyzed by independent sample t test.Logistic regression analysis was made using E1,FA,MD as predictors in detecting and differentiating the malignant tumors,ROC curve analysis was performed to compare diagnostic performance based on the area under the curve (AUC).Results E1,MD and FA in malignant tumors were (0.99 ± 0.12) × 10-3mm2/s,(0.85 ±0.26) × 10-3mm2/s and 0.20 ±0.08 respectively,and those in normal breast tissues were(1.46 ± 0.55) × 10-3 mm2/s、(1.48 ± 0.44) × 10-3 mm2/s and 0.29 ± 0.17 respectively.Those parameters in benign lesions were (1.80 ±0.42) × 10-3mm2/s,(1.38 ±0.52) × 10-3mm2/s and 0.22 ± 0.10 respectively.Significant statistic differences were found between malignant tumors and normal breast tissues in E1,MD and FA (t =-4.889,-6.449,-2.842 ; P ＜ 0.01).Significant statistic differences were also found between malignant tumors and benign lesions in E1 and MD (t =-10.476,-4.394; P ＜ 0.01) with no difference found in FA (P ＞ 0.05).E1,MD and FA are independent predictors in malignant tumors' detection,and the combination of E1,MD and FA significantly improved discrimination between cancer and normal tissue over each one alone with the sensitivity 97.0％ (32/33),specificity 97.0％ (32/33),accuracy 97.0％ (64/66).Combination of E1 and MD had a similar AUC with E1 and a more AUC than MD and FA,with the sensitivity 97.0％ (32/33),specificity 100.0％ (21/21),accuracy 98.1％ (53/54).Conclusion The regression model combining E1,MD and FA is most valuable in breast cancer detection and E1 is the preferred index for the differentiation of breast cancers from benigin lesions.

Objective: The purpose of this study was to evaluate the safety and effectiveness of fast track surgery in laparoscopic gastrectomy for gastric cancer. Methods: All patients received elective gastric cancer resection, and were divided into three groups: group Ⅰ (open gastrecomy, n = 30) , group Ⅱ (open gastrecomy with fast track surgery, n = 30) , and group Ⅲ (laparoscopic gastrecomy with fast track surger-y ,n =30) . Clinical data and gut function were assessed in three groups. Results: There were no significant differences in postoperative complication and the number of lymph node harvest between 3 groups. Blood loss was less in group Ⅲ than group Ⅰ and group Ⅱ (P <0.01) ,but its operative time was longer and its cost was more than other two open surgery groups (P < 0. 01). Recovery of bowel function in group Ⅲ was faster,and postoperative hospital stay was shorter than group Ⅰ (P<0.01). However, recovery of bowel function and postoperative hospital stay in group Ⅲ was not different from group Ⅱ (P > 0. 05). Conclusion: Postoperative hospital stay can be shorter and recovery of bowel function can be faster in laparoscopic gastrectomy with fast track surgery plan compared to traditional care group. But when using fast track surgery plan, laparoscopic gastrectomy was not superior to open surgery.

Objective To develop an interlocking-style vascular shunt device for the treatment of distal limb ischemia resulting from vascular disconnection and defect.Methods A one-way interlocking buckle was designed with the space between the clamping teeth being 0.5 mm,which prevented the device from moving backwards and fixed the vessel and shunt tube conveniently.The interlocking buckle combined with silicone tube was used to connect the two ends of the defected vessel,which was compared with conventional method by suture ligation and silicone tube by the tests on vessel bursting pressure and tensile biomechanics.Results The vessel repaired with the developed device behaved better than that by the conventional method in the tests on vessel bursting pressure and tensile biomechanics (P＜0.05).Conclusion The vascular shunt device can be used for the treatment of distal limb ischemia resulting from vascular disconnection and defect,and thus facilitates the vascular graft in rear hospital after evacuation.

Objective To investigate the injury mechanism, fracture characteristics, treatment strategy and prognosis of Pilon fracture without fibula fracture. Methods 28 cases of Pilon fracture without fibula fracture (29 fractures) treated in our hos?pital were adapted from January 2009 to December 2014. 22 cases were male, 6 were female, aged 46 years old (23-75). Cause of injury:tumble in 14 cases, fall from high place in 8 cases, traffic accident in 5 cases, bruise in 1 case. 10 cases had associated in?juries, and 2 cases were open injuries. The OA/ATO fracture type, Rüedi&Allgower fracture type, and characteristics of fractures were summarized. The appropriate treatments were selected, and the operative method, operative time, surgical approach, fixation, fracture healing time, ankle Mazur score, Burwell?Charnley reduction score and postoperative complications were recorded. Re?sults On the mechanism of injury, 28 cases mostly had a median?low energy injury mechanism with little open injuries. On the fracture characteristics, there was a 96.6%anterior distal tibia articular fracture involved with no other specific fracture character?istics occurred. The treatment of the fracture mostly received a single operative approach to complete open reduction and internal fixation operation. The average operation time was 119 minutes, the average fracture healing time was 7.1 months, the excellent and good rate of ankle Mazur score was 86.2%and the satisfactory rate of Burwell?Charnley fracture reduction score was 93.1%. Skin infections occurred in 3 patients after operation. After effective antibiotic and correct clinical treatment, the incisions got healed in these 3 patients. Conclusion Pilon fracture with intact fibula mostly is caused by median to low energy injury when an?kle at neutral or varus position, most with anterior distal tibia articular fracture by foot dorsal flexion. Generally use a single anteri?or approach can complete open reduction and internal fixation operation with satisfactory clinical treatment. This kind of fracture could achieve good reduction, good bone healing, good function and little complications after correct treatment.

The paeonol proniosomes ointment and ordinary ointment were administered to rats. Physiological saline served as perfused solution. The perfusion rate was 5 mL x L(-1) and the microdialysis samples were collected every 20 min intervals. The paeonol concentration in perfused solution was determined by HPLC. Investigation of the pharmacokinetics of paeonol proniosomes ointment and ordinary ointment by the skin-blood synchronous microdialysis coupled with HPLC is reported in this study. The results show that the recovery was (54.80 +/- 1.50)% in vitro and (54.58 +/- 4.61)% in vivo. The results showed that paeonol proniosomes ointment significantly raised the drug concentrations in skin more than the paeonol ordinary ointment. The paeono proniosomes ointment has less drugs into the blood as the ordinary ointments in blood, but its blood drug concentrations were steadier. The paeonol proniosomes ointment may be developed into a new preparation.
Acetophenones ; administration & dosage ; blood ; chemistry ; pharmacokinetics ; Animals ; Drug Delivery Systems ; instrumentation ; methods ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; pharmacokinetics ; Male ; Microdialysis ; Ointments ; administration & dosage ; chemistry ; pharmacokinetics ; Paeonia ; chemistry ; Rats ; Rats, Wistar ; Skin ; metabolism

Objective: The aim of this study was to evaluate the impact of fast track surgery on host cell-mediated immunology and inflammatory responses in colorectal cancer patients.Methods: Sixty colorectal cancer patients were prospectively divided into fast track surgery(FTS)group(n=30)and conventional perioperative care group(n=30).In addition to clinical parameters(recovery of gastrointestinal function,complication rates and postoperative length of stay), the parameters of perioperative cell-mediated immunology function,and the serum level changes of CRP and IL-6 were determined.Results: FTS group was associated with a significantly shorter postoperative hospital stay compared with conventional care group(P<0.05).Serum concentration of CRP and IL-6 in FTS group were lower(P<0.05) than in the conventional care group on postoperative day(POD) 1 and POD 3(P<0.05).CD4/CD8 ratio in FTS group were higher(P<0.05) than in the conventional care group on postoperative day(POD)1 and POD 3(P<0.05).Conclusion: Fast track surgery for colorectal cancer patients can preserve cell-mediated immunity and control inflammatory responses when compared with conventional postoperative care.

Objective To study the psychological and psychosomatic status of children with pectus exca vatum and the significance of orthotherapy. Method Eighty-seven patients and 87 healthy children were interviewed with the Achenba ch Child Behavior Checklist (CBCL),the symptom Checklist (SCL-90)and the psycho logical and psychosomatic status checklist contrived. Results The children with pectus excavatum showed higher frequency in interpersonal sens itivity, depression,anxiety,obsession compulsion and also more mental difficul ties than those of control group.The differences between the patients and health y children were significant statistically.Conclusions The psychological and psychosomatic status of children with pectus excavatum are worse than those of healthy children,so it is reasonable to perform an operati on earlier for improvement of physiological, psychological ,social aspects in ch ildren with pectus excavatum. J Appl Clin Pediatr,2005,20(2):178-179

OBJECTIVETo investigate the changes of mercury (Hg) levels in cerebrospinal fluid (CSF) in patients with chronic mercury poisoning and elucidate the neurotoxic mechanism of mercury.

METHODSNine patients with chronic mercury poisoning (poisoning group) as well as eight patients without exposure to mercury were included in this study. Mercury concentrations of 24 hour urine (U-Hg) and CSF (CSF-Hg) were measured with cold-vapor atomic absorption spectrometry-alkali stannous chloride method. The concentration of blood (B-Hg) at the same day was measured with cold-vapor atomic absorption spectrometry-acidic stannous chloride method. In five patients of poisoning group, these concentrations before chelation therapy were compared with those after chelation therapy.

RESULTSThe levels of B-Hg, U-Hg, and CSF-Hg in poisoning group (250.00 +/- 48.54, 160.07 +/- 91.15, 20.22 +/- 10.21 nmol/L, respectively) were significantly higher than those in control group (81.04 +/- 63.01, 24.73 +/- 9.96 nmol/L, undetectable, respectively; P < 0.01). In nine patients of poisoning group, CSF-Hg concentrations were correlated with B-Hg (r = 0.675, P < 0.05), but not U-Hg. After chelation therapy with dimercaptopropane sulfonate in five patients of poisoning group, the levels of B-Hg, U-Hg, and CSF-Hg were decreased significantly (P < 0.05). The reduction of CSF-Hg was not related with B-Hg and U-Hg.

CONCLUSIONCSF-Hg concentration in chronic mercury poisoning patient is increased with the rise of B-Hg, but not U-Hg. When the levels of B-Hg and U-Hg drop to normal, the CSF-Hg level is still high enough to be detected. It indicates that mercury is combined with protein after entering brain and this complex is difficult to cross through blood-cerebral barrier. The complex may cause neuromuscular disorder and fremitus in chronic mercury poisoning.

Adult ; Antidotes ; therapeutic use ; Chronic Disease ; Female ; Humans ; Male ; Mercury ; cerebrospinal fluid ; Mercury Poisoning ; cerebrospinal fluid ; drug therapy ; Middle Aged ; Occupational Exposure ; Spectrophotometry, Atomic ; Unithiol ; therapeutic use

OBJECTIVETo evaluate the marginal microleakage of porcelain-fused-to-metal crown using four different cements.

METHODSSixteen porcelain-fused-to-metal crowns were built and randomly divided into 4 group, luted onto standard prepared human forward molars using four different cements (glass ionomer cement, resin-modified glass ionomer cement, PanaviaF, Super-Bond C&B adhesive luting system). After temperature cycling test, all the crowns were then submerged in 2% fuchsin for 24 h. The marginal microleakage at tooth cement interfaces was observed using light stereomicroscopy and evaluated in classification index. The marginal microleakage grade of 4 groups were analyzed by SPSS 13.0.

RESULTSThe PanaviaF demonstrated the least marginal microleakage, Super-Bond C&B adhesive luting system, resin-modified glass ionomer cement showed an intermediate level of marginal microleakage, glass ionomer cement was associated with severe marginal microleakage (total, Chi2 = 157.60, P < 0.01; among the different groups, P<0.05).

CONCLUSIONAdhesive resin luting system which is the first selection in clinical is better than glass ionomer cement and is good at porcelain-fused-to-metal crown.

Boron Compounds ; Cementation ; Crowns ; Dental Cements ; Dental Leakage ; Dental Marginal Adaptation ; Dental Porcelain ; Glass Ionomer Cements ; Humans ; Metals ; Methacrylates ; Methylmethacrylates ; Resin Cements

OBJECTIVETo investigate the ultrasonographic features of congenital intrahepatic portosystemic venous shunt (CIPSVS) and to assess the clinical value of ultrasonography in the diagnosis of CIPSVS.

METHODSSix cases of CIPSVS diagnosed in our hospital between March 2010 and March 2012 and confirmed by enhanced computed tomography (CT) were retrospectively reviewed. Five of the six cases had follow-up data that was included in the analysis.

RESULTSAmong the six CIPSVS cases, only one was classified as Park's type II and the rest were classified as Park's type III. Five cases involved the right lobe of the liver and only one case involved the left lobe. The lesion shapes included cystic, tubular, and irregular with clear contour and appeared to be anechoic on CT scan. The lesions ranged in size from 1.1*0.6 cm to 2.0*1.7 cm. For all cases, the color Doppler ultrasound images showed blood flowing from the portal vein to the hepatic vein, and single-phase spectrum was detected in the diversion channel. The differences observed in level of lesion size and blood flow velocity at the shunt from the time of examinations at diagnosis and subsequent follow-up did not reach statistical significance (P = 0.223 more than 0.05 and P = 0.930 more than 0.05 respectively).

CONCLUSIONAlthough cases of CIPSVS are rare, they share some specific sonographic features that may help in diagnosis. Color Doppler ultrasound findings have high diagnostic accuracy and may represent a preferred modality for follow-up monitoring.

Aged ; Female ; Humans ; Male ; Middle Aged ; Portal Vein ; abnormalities ; diagnostic imaging ; Retrospective Studies ; Ultrasonography ; Vascular Malformations ; diagnostic imaging