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find Author "于涛" 15 results
  • 成人小主动脉瓣环患者的心瓣膜置换术

    目的 总结成人小主动脉瓣环行心瓣膜置换术的临床经验,以提高手术效果。 方法 对26例成人小主动脉瓣环患者行人工机械瓣膜置换术,单纯主动脉瓣置换17例,二尖瓣、主动脉瓣双瓣膜置换9例。采用Manougnian法主动脉瓣环加宽7例,瓣膜侧倾缝合置换主动脉瓣膜6例,瓣环上主动脉瓣置换13例,在双瓣膜置换中均先置换主动脉瓣后再置换二尖瓣。 结果 26例患者中无手术死亡,术后随访时间6~48个月(12±3个月),心功能均明显改善(Ⅰ级10例、Ⅱ级16例),无远期死亡。术后主动脉瓣有效瓣口面积指数(EOAI)1.02~1.44 cm2/m2(>0.85 cm2/m2), 无瓣膜患者不匹配现象(PPM)。 结论 主动脉瓣病变伴小主动脉瓣环的成人患者行心瓣膜置换,选择新型人工瓣膜行瓣环上主动脉瓣置换是理想的选择,瓣膜侧倾缝合是可选择的方法,二尖瓣、主动脉瓣双瓣膜置换时先置换主动脉瓣可降低手术操作难度,大部分患者无需行瓣环扩大术。

    Release date:2016-08-30 06:08 Export PDF Favorites Scan
  • 异物性食管主动脉瘘一例

    Release date:2016-08-30 06:31 Export PDF Favorites Scan
  • PROGRESS IN TREATMENT OF TERRIBLE TRIAD OF ELBOW

    Objective To review the injury mechanism and the treatment progress of terrible triad of the elbow, and to analyze the direction of further research. Methods Related literature concerning terrible triad of the elbow was extensively reviewed and comprehensively analyzed. Results The main treatment of terrible triad of the elbow is operation. The ultimate goal of treatment is to reconstruct sufficient stability of the elbow. The treatment includes fixation of the coronoid by suture, screw or plate; fixation of radial head by screw and plate, partial or complete replacement of the radial head; fixation of lateral collateral ligament and the medial collateral ligament by bone suture or anchors and the application of the external fixator. These surgical treatments have their own indications and advantages, most get satisfactory results. Conclusion Generally, surgery is needed to maintain the stability of the elbow for patients of terrible triad elbow. However, medial ligament repair or not, the choice of approach, and mechanism of injury still need further study.

    Release date:2016-08-31 04:07 Export PDF Favorites Scan
  • APPLICATION PROGRESS OF MINIMALLY INVASIVE TECHNIQUE IN TREATMENT OF CALCANEUS FRACTURES

    Objective To review the application progress of minimally invasive technique in the treatment of calcaneus fractures and to analyze the advantages and disadvantages of each method as well as to predict the trend of development in the field. Methods Domestic and abroad literature concerning the minimally invasive technique applied in calcaneus fractures in recent years was reviewed extensively and analyzed thoroughly. Results There are both advantages and limitations of each minimally invasive technique including percutaneous reduction and fixation, limited incision, external fixator, arthroscopic assisted reduction, and balloon expansion reduction. But every technique is developing rapidly and becoming more and more effective. Conclusion A variety of minimally invasive technique can not only be used independently but also can be applied jointly to complement one another. It needs further study how to improve the effectiveness and expand the indications. And the theoretical basis of evidence-based medicine needs to be provided more.

    Release date:2016-08-31 04:06 Export PDF Favorites Scan
  • APPLICATION PROGRESS OF SUBTALAR ARTHROEREISIS FOR CORRECTION OF PEDIATRIC FLATFOOT IN CHILDREN

    Objective To review the appl ication progress of subtalar arthroereisis for the correction of pediatric flatfoot in children and to analyze the problems at present as well as to predict the trend of development in the field. Methods Domestic and abroad l iterature concerning the methods of subtalar arthroereisis applied in pediatric flatfoot in recent years was reviewed extensively and thoroughly analyzed. Results Subtalar arthroereisis has proved to yield good results for correction of the flatfoot in children. In addition to the advantages of subtalar arthroereisis for pediatric flatfoot treatment(simple procedure, mature technology, and less compl ications), it allows further surgery if needed. Conclusion Subtalararthroereisis is a simple and effective way to treat flatfoot in children, however, its biomechanics mechanism and managements to complication need to explore further.

    Release date:2016-08-31 05:42 Export PDF Favorites Scan
  • Evaluation on Ischemia Modified Albumin in the Early Diagnosis of Non-St-Segment Elevation Acute Coronary Syndromes

    Objective To evaluate the early diagnostic value of ischemia modified albumin (IMA) for non-ST-segment elevation acute coronary syndromes (NSTEACS). Methods The study group consisted of 177 patients with suspected NSTEACS whose blood was collected within six hours after the onset of chest pain to determine cardiac troponin I (cTnI), and IMA was determined through the albumin cobalt binding (ACB) test. After standardized diagnosis and treatment and GRACE risk score, the patients then were divided into three groups according to the final diagnosis: the NSTEMI (non-ST-segment elevation myocardial infarction) group (n=34), the UA (unstable angina pectoris) group (n=56) and the NICP (non-ischemia chest pain) group (n=87). Meanwhile, 58 people taking the routine examination in the same hospital at that time were randomly selected as the control group. With the results of IMA, ROC curve analysis was used to determine the optimal cutoff of this assay for identifying patients with NSTEACS from those with NICP. Results of IMA, ECG and cTnI were correlated with final diagnosis, and their diagnostic sensitivity and specificity were evaluated for NSTEACS. Results The IMA concentration in the serum showed no significant difference between the NSTEMI group and the UA group, whereas there were significant differences between the former two groups and the NICP group. The sensitivity and specificity at a cutoff point 67.49 U/mL were 91.1% and 86.2%, respectively when the ROC curve area was 0.950. The correlation between the IMA concentration and GRACE risk score was negative. Conclusion IMA is an early sensitive indicator for NSTEACS and a useful predictor of prognosis.

    Release date:2016-09-07 11:00 Export PDF Favorites Scan
  • Effectiveness of Preoperative Recombinant Human Brain Natriuretic Peptide on Rheu-matic Valves Diseases with Cardiorenal Syndrome: A Randomized Controlled Trial

    ObjectiveTo investigate the efficacy of intravenous infusion of recombinant human brain natriuretic peptide in rheumatic heart valves patients with cardiorenal syndrome preoperatively, the function and operational results before and after treatment were compared. MethodsA randomized, single-blind, and controlled study was conducted in 60 patients characterized of rheumatic heart valves patients in our hospital from March 2012 through March 2015. There were 24 males and 36 females at average age of 52.1±8.9 years (ranged from 35-73 years). Their left ventricular ejection fraction was less than 40% and plasma creatinine was mildly or moderately raised. They were recruited into an experiment group and a control group by random digital table. The control group received continuous intravenous Dopamine and Nitroglycerin based anti-heart failure treatment (n=30). The experimental group received additional recombinant human brain natriuretic peptide for 48 hours without bolus (at a dose of 0.006 μg·kg-1·min-1, n=30). The levels of the biomarkers for cardiac and renal function between before and after treatment were compared. ResultsIn the experiment group, treatment with recombinant human brain natriuretic peptide for 48 hours had lower level of plasma NT-proBNP than the baseline level with a statistical difference (88.6±55.1 pg/ml vs. 55.0±47.6 pg/ml, P=0.014), lower level of high sensitivity creative reaction protein than the baseline level with a statistical difference (2.79±1.27 mg/l vs. 1.39±0.79 mg/l, P=0.000), more 24 hours urine output than the baseline level with a statistical difference (1 464.0±348.3 ml vs. 1 223.0±279.9 ml, P=0.005), lower level of serum cystatin-C than the baseline level with a statistical difference (0.25±0.14 mg/l vs. 0.08±0.07 mg/l, P=0.000), higher inotrope requirement within three days after operation (2.52±1.30 mg·kg-1·min-1 vs.3.36±1.15 mg·kg-1·min-1, P=0.011), less ICU stay days (4.5±1.2 days vs. 5.3±1.6 days, P=0.03). There were no statistical differences between the experiment group and the control group after treatment in cardiac function class, left ventricular ejection fraction, left ventricular end-diastolic diameter, creatinine, chest tube drainage volume, and intra-aortic balloon pumping use. ConclusionIntravenous injection of recombinant human brain natriuretic peptide in the patients with rheumatic valve disease combined with cardiorenal syndrome before operation can decrease systemic inflammation reaction and cardiac and renal function injury, and enhance operational recovery.

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  • Sinus tarsi approach combined with medial distraction technique for treatment of intra-articular calcaneus fractures

    ObjectiveTo discuss the effectiveness of limited open reduction via sinus tarsi approach using medial distraction technique in the treatment of intra-articular calcaneus fractures by comparing with open reduction and internal fixation via extensile L-shaped incision. MethodsA retrospective analysis was made on the clinical data of 21 patients with intra-articular calcaneus fractures treated by sinus tarsi approach combined with medial distraction technique between April 2013 and November 2014 (minimally invasive group), and 32 patients treated by extensile L-shaped incision approach between June 2012 and September 2014 (extensile incision group). No significant difference was found in gender, age, injury pattern, fracture classification, time from injury to operation, preoperative Böhler angle, Gissane angle, calcaneal varus angle, the ankle and hind-foot score of American Orthopaedic Foot and Ankle Society (AOFAS), and visual analogue scale (VAS) score between 2 groups (P>0.05), which was comparable. The operation time, wound complications, and bone healing time were recorded. The postoperative function was also evaluated by AOFAS score and VAS score. The pre-and post-operative Böhler angle, Gissane angle, and calcaneal varus angle were measured on the X-ray films, and the corrective angle was calculated. ResultsSixteen patients were followed up 6-18 months (mean, 11.5 months) in the minimally invasive group, and 23 patients for 6-24 months (mean, 13.5 months) in the extensile incision group. Difference was not significant in operation time between 2 groups (t=0.929, P=0.796). No complication occurred in the minimally invasive group; partial skin flap necrosis occurred in 3 cases of the extensile incision group, was cured after dressing change. There was no loosening of implants or reduction loss in 2 groups at last follow-up. Subtalar joint stiffness occurred in 1 case of the minimally invasive group and 4 cases of the extensile incision group, and 1 patient had discomfort for the implants in the extensile incision group. The bone healing time was (9.9±0.8) weeks in the minimally invasive group, and was (10.1±0.7) weeks in the extensile incision group, showing no significant difference (t=0.613, P=0.845). Böhler angle, Gissane angle, calcaneal varus angle, AOFAS score, and VAS score were significantly improved at last follow-up when compared with preoperative values in 2 groups (P < 0.05), but there was no significant difference between 2 groups (P>0.05), and the corrective value of angle showed no significant difference between 2 groups (P>0.05). ConclusionLimited open reduction via sinus tarsi approach for intra-articular calcaneus fractures could reduce the incidence of wound complications effectively. Meanwhile, the medial distraction technique is helpful to correct the heel varus deformity.

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  • Advances of Function of Prussian Blue Nano-materials in Cancer Diagnosis and Therapy

    Prussian blue (PB), a kind of ferrous ferricyanide composed of Fe2+ and Fe3+, has been approved by Food and Drug Administration (FDA, USA) as an oral drug for the treatment of thallium and cesium poisoning. The biosafety of PB has been proved by long-term clinical trials. In recent years, PB nano-materials have attracted intensive research interests for medical application, especially for tumor imaging and treatment of cancer. Compared to other nano-materials, PB has potential advantage in medical application due to the high biosafety. This paper reviews the new advances in the functions of cancer diagnosis and therapy of PB nano-materials.

    Release date:2016-12-19 11:20 Export PDF Favorites Scan
  • Clinical effectiveness of valve-sparing aortic root replacement in the treatment of patients with dilated aortic root after operation for tetralogy of Fallot

    Objective To evaluate the clinical effectiveness of valve-sparing aortic root replacement (VSARR) in the treatment of patients with dilated aortic root after operation for tetralogy of Fallot (TOF). Methods A retrospective analysis was conducted on clinical data of TOF patients with aortic root dilation who underwent VSARR in our hospital from 2016 to 2022. Results Finally 14 patients were collected, including 8 males and 6 females, with a median age of 22 years ranging from 12-48 years. Among them, 5 patients had severe aortic valve regurgitation, 4 moderate regurgitation, and 5 mild or no regurgitation. Six patients had sinus of valsalva dilation, and 8 significant dilation of the ascending aorta. One patient had residual shunt due to ventricular septal defect, and 9 severe pulmonary valve regurgitation. The David procedure was performed in 10 patients, Yacoub procedure in 2 patients, and Florida sleeve in 2 patients. There was no perioperative mortality in the group. The median follow-up time was 2.9 years (ranging from 0.4 to 6.0 years). One patient had mild aortic valve regurgitation, and the rest had minimal or no regurgitation. One patient had mild stenosis of the left ventricular outflow tract, and the rest patients had no obvious stenosis. Conclusion VSARR is a satisfactory treatment for aortic root dilation in patients with TOF, with no significant increase in the incidence of left ventricular outflow tract stenosis or aortic regurgitation during mid-term follow-up.

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