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      2. west china medical publishers
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        find Keyword "Median" 18 results
        • Comparison of different thoracic incision approaches for congenital heart disease in children

          Objective To compare the clinical results of different thoracic incision approaches for congenital heart disease in children. Methods Retrospective analyses of the clinical results of different thoracic incision approaches for 1 669 children with congenital heart disease was performed. All patients were divided into median sternotomy group(Med group), right thoracotomy group (Rat group),and lower partial median sternotomy group (Pt group) according to different thoracic incision. Two hundred and forty five children underwent atrial septal defect(ASD) repair, 1 005 children underwent ventricular septal defect(VSD) repair and 419 children underwent tetralogy of Fallot(TOF) correct repair from Jan. 1999 to Dec. 2001. Results In ASD repair the incidence of pulmonary complications after operation in the Rat group was significantly higher than that in Med group and Pt group ( P lt;0 05). The percentage of pulmonary hypertension before operation in Med group was significantly greater than th...更多at in the Rat group and Pt group ( P lt;0 05), but the incidence of pulmonary complications in Rat group was significantly higher than that in the Med group and Pt group in children with VSD( P lt;0 05). The concentration of hemoglobin , the oxygen saturation and the percentage of transannular patch in Med group were significantly higher, lower and greater respectively than those in the Pt group and in Rat group in children with TOF( P lt;0 05). Conclusion The approaches to be selected should guarantee to correct the cardiac anomaly satisfactorily, reduce the postoperative complications maximally and ensure success of their operations.

          Release date:2016-08-30 06:27 Export PDF Favorites Scan
        • HER-2/neu Status and Post-Operative Survival in Epithelial Ovarian Carcinoma: A Meta-analysis

          Objective To use a meta-analysis method to establish quantitatively the association between the HER-2/neu gene amplification/enhanced protein expression status and the 5-year post-operative survival rate or median survival time in women with epithelial ovarian carcinoma. Methods  We searched and screened Chinese and English literature published since 1989 to collect all retrospective cohort studies on the prognostic significance of HER-2/neu status in this population. The survival data were analyzed using Ludwig’s centered signed rank and the DerSimonian-Laird method. Results In total, 25 studies involving 3 251 patients were included. HER-2/neu was positive in 27.1% (95%CI 0 to 54.8%) of patients, which was not related to the pathological stage, type or grade of epithelial ovarian carcinoma. In HER-2/neu positive cases, the median survival time was shortened by 0.65 years, and the 5-year survival rate was lowered. The hazard ratio (HR) for mortality was 1.22 (95%C 1.09 to 1.36). By subgroup analysis, HER-2/neu protein expression was found to be most significant in prognostic assessment. Patients with a b positive value of HER-2/neu had an increased HR for the 5-year survival; and platinum-based chemotherapy was demonstrated to be less effective in HER-2/neu positive ovarian carcinoma. Conclusion In gynecological oncology, it is reasonable to measure HER-2/neu as a routine pathological marker to predict a patient’s prognosis and to determine the most appropriate adjuvant chemotherapy regimen.

          Release date:2016-09-07 02:15 Export PDF Favorites Scan
        • Totally Thoracoscopic Surgery Versus Median Sternal Incision in Intracardiac Surgery in Pediatrics

          Abstract: Objective To find out goodness and weakness by comparing totally thoracoscopic surgery (TTS)and median sternotomy (MS)with cardiopulmonary bypass for pediatric open heart operation. Methods One hundred and fortyseven patients with ventricular septal defect(VSD) and atrial septal defect(ASD) were randomly divided into two groups according to operative methods, TTS group: patients were operated by totally thoracoscopy; MS group: patients were operated by median sternotomy with cardiopulmonary bypass. The clinical records from two groups were compared on operative effect, complications, hospitalization, ventilation time,variations of main data of blood routine test, drainage of pleura cavity, blood loss and transfusion, and pulmonary function. Results There were no death in two groups. There was VSD residual leak the same day after operation which was cured by TTS in one patient of TTS group. There was one case which bleeding was stopped by second operation in MS group. Followup visit were made to 41 patients for 3 months, no heart murmur was detected. The ultrasonic cardiography (UCG) showed that correcting of VSD and ASD were good and had no residual leak. The hospitalization,aortic clampping time, ventilation time and variations of main data of blood routine test, drainage of pleura cavity, blood transfusion and blood loss in TTS group had no significant difference to those in MS group (Pgt;0.05). Operating times was longer in TTS group than that in MS group, while stays in the intensive care unit were shorter in TTS group than that in MS group (Plt;0.01). Preoperative and 3 months postoperative pulmonary function of both teams had no statistically significant difference in two groups (Pgt;0.05). Conclusion TTS is a safe and effective method to pediatric VSD and ASD as MS is.

          Release date:2016-08-30 06:16 Export PDF Favorites Scan
        • Effect of Delayed Sternal Closure on Sternal Wound Debridement after Pediatric Cardiac Surgery

          ObjectiveTo investigate the effect of delayed sternal closure (DSC) on sternal wound debridement after pediatric cardiac surgery. MethodsWe retrospectively analyzed clinical data of 491 pediatric patients underwent DSC in Guangdong General Hospital between June 2009 and June 2014. There were 333 males and 158 females with age of 1 day to 153.37 (5.68±17.24) months. The rate of sternal wound debridement between the DSC patients and the non-DSC patients was compared. ResultsA total of 454 pediatric patients with DSC initiated in the operation room. And 37 patients with DSC initiated in intensive care unit after emergency sternotomy. A total of 392 patients with delayed sternal closure were discharged. Eight patients gave up treatment for family reasons and 91 patients died. Patients with DSC had higher incidence of sternal wound debridement than the patients with non-DSC did (χ2=6.693, P=0.010). ConclusionDSC is an effective treatment for children with severe cardiac surgery, while it causes higher incidence of sternal wound debridement.

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        • Totally Thoracoscopic Surgery versus Median Sternotomy in Cardiac Myxoma Treatment

          ObjectiveTo examine the differences between totally thoracoscopic surgery and median sternotomy in scope of trauma, postoperative recovery and postoperative complications. MethodsWe retrospectively analyzed the clinical data of 331 patients with cardiac myxoma in our hospital between January 2001 and November 2015. The patients were devided into 2 groups by the different methods of operation:a totally thoracoscopic surgery group including 196 patients with 71 males and 125 females at a mean age of 50 (42.00-57.50) years, and a median sternotomy group including 135 patients, with 53 males and 82 females at a mean age of 52 (38.00-61.00) years. The clinical records of the two groups were compared in scope of trauma, postoperative recovery, and postoperative complications. ResultsThere was shorter time in breathing machine and ICU time (P<0.001), and fewer volume in blood transfusion, blood loss (P<0.001) in the totally thoracoscopic surgery group. There was less pain and postoperative complications (P<0.001) in the totally thoracoscopic surgery group. The aortic clamp time in the totally thoracoscopic surgery group was not significantly different compared with that in the median sternotomy group (P=0.15) While cardiopulmonary bypass time was shorter in the median sternotomy group (P<0.001). ConclusionTotally thoracoscopic surgery is a safe and reliable method in treating cardiac myxoma. Our results suggest that totally thoracoscopic surgery has the advantage of fewer blood loss, blood transfusion, and postoperative complications compared with median sternotomy surgery. Totally thoracoscopic surgery leads to earlier recovery and less pain.

          Release date:2016-12-06 05:27 Export PDF Favorites Scan
        • How to estimate the sample mean and standard deviation from the sample size, median, extremes or quartiles?

          This article introduces the methods about how to use the summary statistics such as the sample median, minimum and maximum to estimate the sample mean and standard deviation for continuous outcomes. For the purpose of illustration, we also apply the existing methods to a real data example.

          Release date:2017-11-21 03:49 Export PDF Favorites Scan
        • Extraanatomic Aortic Bypass Grafting Through Median Sternotomy for Onestage Treatment of Aortic Coarctation and Associated Cardiac Diseases

          Objective To summarize the experience of extraanatomic aortic bypass grafting through median sternotomy for onestage treatment of aortic coarctation and associated cardiac diseases, and to improve surgical effect of the diseases. Methods Between July 1997 and July 2008, 31 consecutive patients(20 male,11 female; age 31.9±11.7 years) with aortic coarctation and associated cardiac anomalies underwent onestage surgical repair through median sternotomy. The associated cardiac anomalies included: aortic valve insufficiency or stenosis(n=22); mitral valve insufficiency or stenosis (n=9); patent ductus arteriosus (n=5); ascending aortic aneurysm (n=4); ventricular septal defect (n=3); coronary artery disease (n=2). Extra-anatomic aortic bypass grafting was used to repair the coarctation. Routing of the grafts was: ascendingto posterior pericardial descending aorta (n=9) and ascendingtoinfrarenal abdominal aorta (n=22). Concomitant cardiac procedures included: aortic valve replacement in 16; Bentall procedures in 6; mitral valve repair or replacement in 9; ascending aortic replacement or aortoplasty in 4; patent ductus arteriosus closure in 5; ventricular septal defect closure in 3 and coronary artery bypass grafting in 2. Results One patient died of septic shock 39 days after operation with an inhospital mortality of 3.2%. Mean systolic blood pressure gradient between upper and lower extremities decreased from 64.2±25.3 mm Hg preoperatively to 13.7±10.2 mm Hg postoperatively (Plt;0.05). Twentyseven patients were followed up from 4 to 73 months, there were no late deaths,reoperations or graftrelated complications. Conclusion Extraanatomic aortic bypass grafting can be performed simultaneously through median approach in patients with aortic coarctation and associated cardiac diseases. It is an effective and safe treatment option for onestage surgical repair in adults and adolescents. Both ascendingto posterior pericardial descending aorta and ascendingtoinfrarenal abdominal aorta bypass have favorable results.

          Release date:2016-08-30 06:06 Export PDF Favorites Scan
        • LONG-TERM RESULTS OF DELAYED REPAIR OF MEDIAN NERVE INJURY

          ObjectiveTo review and analyze the long-term results of delayed repair of median nerve injury. MethodsBetween January 2004 and December 2008, 228 patients with median nerve injury undergoing delayed repair were followed up for more than 4 years, and the clinical data were retrospectively analyzed. There were 176 males (77.19%) and 52 females (22.81%), aged 2-71 years (median, 29 years). The main injury reason was cutting injury in 159 cases (69.74%);203 cases had open injury (89.04%). According to the injury level, injury located at area I (upper arm) in 38 cases (16.67%), at area II (elbow and proximal forearm) in 53 cases (23.25%), at area III (anterior interosseous nerve) in 13 cases (5.70%), and at area IV (distal forearm to wrist) in 124 cases (54.39%). The delayed operations included delayed suture (50 cases, 21.93%), nerve release (149 cases, 65.35%), and nerve graft (29 cases, 12.72%). ResultsFor patients with injury at area I and area II, the results were good in 23 cases (25.27%), fair in 56 cases (61.54%), and poor in 12 cases (13.18%) according to modified Birch and Raji’s median nerve grading system;there was significant difference in the results between 3 repair methods for injury at area II (χ2=6.228, P=0.044), but no significant difference was found for injury at area I (χ2=2.241, P=0.326). Twelve patients (13.18%) needed musculus flexor functional reconstruction. Recovery of thenar muscle was poor in all patients, but only 5 cases (5.49%) received reconstruction. Thirteen cases of nerve injury at area III had good results, regardless of the repair methods. For patients with injury at area IV, the results were excellent in 6 cases (4.84%), good in 22 cases (17.74%), fair in 72 cases (58.06%), and poor in 24 cases (19.35%) according to Birch and Raji’s grading system;there was significant difference in the results between 3 repair methods (χ2=12.646, P=0.002), and the result of delayed repair was better. ConclusionThe results of delayed repair is poor for all median nerve injuries, especially for high level injury. The technique of repair methods vary with injury level. For some delayed median nerve injuries, early nerve transfer may be a better choice for indicative patients.

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        • ANATOMICAL STUDIES ON LOW END-TO-SIDE ANASTOMOSIS OF MEDIAN NERVE AND ULNAR NERVE IN REPAIR OF DEJERINE KLUMPKE TYPE PARALYSIS OR HIGH ULNAR NERVE INJURY

          Objective To investigate the anatomical evidence of low end-to-side anastomosis of median nerve and ulnar nerve in repair of Dejerine Klumpke type paralysis or high ulnar nerve injury. Methods Twelve formaldehyde anticorrosion specimens (24 sides) and 3 fresh specimens (6 sides) were observed. There were 9 males (18 sides) and 6 females(12 sides). The specimen dissected under the microscope. S-shape incision was made at palmar thenar approaching ulnar side, the profundus nervi ulnaris and superficial branch of ulnar nerve were separated through near end of incision, and the recurrent branch of median nerve and comman digital nerve of the ring finger were separated through far end of incision. The distances from pisiform bone to the start point of the recurrent branch of median nerve, and to the start point of comman digital nerve of the ring finger were measured. The width and thickness of the profundus nervi ulnaris and superficial branch of ulnar nerve, and the recurrent branch of median nerve and comman digital nerve of the ring finger were measured, and the cross-sectional area was calculated. The number of nerve fiber was determined with HE staining and argentaffin staining. Results The crosssectional area and the number of nerve fiber were (2.46 ± 1.03) mm2 and 1 305 ± 239 for the profundus nervi ulnaris, (2.62 ± 1.75) mm2 and 1 634 ± 343 for the recurrent branch of median nerve, (1.60 ± 1.39) mm2 and 1 201 ± 235 for the superficial branch of ulnar nerve, and (2.19 ± 0.89) mm2 and 1 362 ± 162 for the comman digital nerve of the ring finger. There were no significant differences (P gt; 0.05) in the cross-sectional area and the number of nerve fiber between the profundus nervi ulnaris and the recurrent branch of median nerve, between the superficial branch of ulnar nerve and the comman digital nerve of the ring finger; and two factors had a l inear correlation (P lt; 0.05) with correlation coefficients of 0.68, 0.66 and 0.56, 0.36. The distances were (36.98 ± 4.93) mm from pisiform bone to the start point of the recurrent branch of median nerve, and (28.35 ± 6.63) mm to the start point of comman digital nerve of the ring finger. Conclusion Low end-to-side anastomosis of median nerve and ulnar nerve has perfect match in the cross-sectional area and the number of nerve fiber.

          Release date:2016-08-31 05:47 Export PDF Favorites Scan
        • Follow control of upper limb rehabilitation training based on Kinect and NAO robot

          Gesture imitation is a common rehabilitation strategy in limb rehabilitation training. In traditional rehabilitation training, patients need to complete training actions under the guidance of rehabilitation physicians. However, due to the limited resources of the hospital, it cannot meet the training and guidance needs of all patients. In this paper, we proposed a following control method based on Kinect and NAO robot for the gesture imitation task in rehabilitation training. The method realized the joint angles mapping from Kinect coordination to NAO robot coordination through inverse kinematics algorithm. Aiming at the deflection angle estimation problem of the elbow joint, a virtual space plane was constructed and realized the accurate estimation of deflection angle. Finally, a comparative experiment for deflection angle of the elbow joint angle was conducted. The experimental results showed that the root mean square error of the angle estimation value of this method in right elbow transverse deflection and vertical deflection directions was 2.734° and 2.159°, respectively. It demonstrates that the method can follow the human movement in real time and stably using the NAO robot to show the rehabilitation training program for patients.

          Release date:2023-02-24 06:14 Export PDF Favorites Scan
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          2. 射丝袜