The changes in excitability and autorhthmicity of bladder detrusor in experimental non-insulin dependent diabetes mellitus (NIDDM) rats were observed. Sixty-nine NIDDM rats as NIDDM group and 69 normal rats as control group were enrolled into this experimental study. At 6th, 10th, 14th, 18th, 22nd and 26th week after the rats were injected last time, the changes in the excitability and autorhthmicity of detrusor strips in vitro were observed. The results showed that the threshold of the tension which made the detrusor strips contract was significantly higher in NIDDM group (0.716 +/- 0.325 g) than in control group (0.323 +/- 0.177 g) (F = 59.63, P < 0.001). At different stages, the threshold of the tension resulting the contract of the detrusor strips in NIDDM group was also higher than in control group. At 18th week after STZ injection, the frequency of spontaneous contract of the detrusor strips in NIDDM was significantly higher than in control group (P < 0.05), whereas at 22nd week, that in NIDDM group was significantly lower than in control group (P < 0.05). It was concluded that the decreased excitability of the bladder detrusor was the earliest and most obvious changes in bladder function in diabetes rats and the autorhthmicity had also changed at the early stage of diabetic bladder.
Diabetes Mellitus, Experimental/*physiopathology ; Diabetes Mellitus, Type 2/physiopathology ; Muscle Contraction/physiology ; Muscle Relaxation/physiology ; Rats, Wistar ; Urinary Bladder/*physiopathology ; Urinary Bladder Diseases/etiology ; Urinary Bladder Diseases/*physiopathology

This study was designed to summarize the clinical experience of harvesting the lung of a brain-death donor by international standardized methods so as to establish a set of standards and regulations that are applicable for harvesting the lung of brain-death donors in China. The patient was strictly determined according to international standardized method by two or more advanced neurologists, neurocranial surgeon, anesthetists, and ICU specialists using brain death diagnostic standards and brain death diagnostic technological specification. The family members signed a informed consent of abandoning treatment for brain death and he was a volunteer organ donor. The operation was performed on 1 brain-death donor who had endured 50 hours of mechanical ventilation to evaluate brain death and organ function. The donor was assessed by donor lung function test and international brain death standard. Then the organ was ready for lung transplantation.

This study was designed to summarize the clinical experience of harvesting the lung of a brain-death donor by international standardized methods so as to establish a set of standards and regulations that are applicable for harvesting the lung of brain-death donors in China. The patient was strictly determined according to international standardized method by two or more advanced neurologists, neurocranial surgeon, anesthetists, and ICU specialists using brain death diagnostic standards and brain death diagnostic technological specification. The family members signed a informed consent of abandoning treatment for brain death and he was a volunteer organ donor. The operation was performed on 1 brain-death donor who had endured 50 hours of mechanical ventilation to evaluate brain death and organ function. The donor was assessed by donor lung function test and international brain death standard. Then the organ was ready for lung transplantation.

Objective To investigate the effectiveness and safety of bilateral lung transplantation with simultaneous lung volume reduction surgery in the treatment on end-stage lung disease and analysis its prognosis.Methods Clinical data of 79 patients with end-stage 1ung diseases receiving BLTx in our hospital were retrospectively analyzed between Sept.2002 to Dec.2012.Bilateral lung transplantations were performed on 48 male and 31 female patients, with a mean age of(57.0 ± 6.3) years (ranging from 15 to 75 years).Amongst them 56 patients received LTx under circulation support,including 1 cases of cardiopulmonary bypass(CPB) support and 55 cases of extracorporeal membrane oxygenation(ECMO) support.34 patients accepted lung volume reduction surgery, other 45 patients receive standard BLTx.The Patients were divided into lung volume reduction group(group Ⅰ)and control group(group Ⅱ).Differences in various clinical parameters such as Pulmonary function, postoperative complications, and prognosis between the two groups were compared.Results The 1、2、3 and 5-year survival rate after LTx was 80.5％ 、71.4％ 、58.2％ and 43.5％.The mean survival time post-transplant in size reduction group and control group were(38.54 ±4.72) months and(42.19 ±6.64) months repectively.The main causes of mortality included primary graft dysfunction(PGD) ,acute rejection(AR) , multiple organ failure(MOF) , bronchiolitis obliterans(BOS) and sepsis.No tendency of increase in mechanical ventilation, chest tube drainage time, volume of chest drainage were observed.Compared clinical parameters between the two groups, none had significant differences(P ＞0.05).Lung function test was performed on 63 cases after transplantation.There was no significant difference in FEV1 improvement after lung transplantation between the two groups[(74.23 ±4.86)％, (72.0 ±3.64)％, P ＞0.05].Conclusion This study demonstrates that BLTx with simultaneous lung volume reduction surgery is safe and effective, which have the same outcome and prognosis compare with standardbilateral lung transplantation.

ObjectiveTo evaluate the security and effectiveness of raffinose-low potassium dextran solution (RLPDs) for donor lung preservation.MethodsFrom Sep.2002 to Dec.2011,131patients underwent lung transplantation in our institution,including 81cases of single lung transplantation and 50 cases of bilateral lung transplantation.There were 95 males and 36 females.A total of 129 donors were used for organ harvest.Two donors denoted their lungs to four patients receiving single lung transplantation. All the donors were flushed, perfused antegradely and retrogradely,and preserved with hypothermal RLPDs.The repeated reperfusion was necessary when the cold ischemic time was fairly long and the function of donor was poor.During operation,the blood gas analysis,mean pulmonary artery pressure (mPAP) and breathing mechanics were monitored.Postoperatively,all the recipients received re-examination of cardiac ultrasonography,pulmonary function,blood gas analysis and chest imaging.ResultsAll lung transplantations were performed successfully,with a mean cold ischemic time of (193±21) min (range,65-630 min).There was a significant relationship between postoperative pneumonedema and donor lung cold ischernic time (P＜0.05),which was also observed between postoperative pneumonedema and primary graft dysfunction (P＜0.01). The blood gas analysis and oxygenation index were significantly improved postoperatively,with the mPAP and parameters of breathing mechanics being descended to a normal level.There were 24 early deaths in the first month post-transplant,with a mortality of 18.3％ (24/131),including 11cases of sepsis,7 cases of primary graft dysfunction,3 cases of heart failure,1case of bronchial stomal leak,1case of acute rejection,and 1case of pulmonary infarction.The pulmonary function was improved significantly 3 months postoperatively.Conclusion RLPDs is efficient in the preservation of donor lung,with the ability to alleviate ischemic reperfusion injury and improve pulmonary function.

Objective To discuss the benefits of extracorporeal membrane oxygenation (ECMO) applied in the patients with primary or secondary pulmonary hypertension during the operation of lung transplantation. Methods Thirty cases of end stage lung disease subject to primary or secondary pulmonary hypertension received lung transplantation supported with ECMO between Nov. 2005 and July 2009. The single lung transplantation was performed on 18 cases and bilateral sequential single lung transplantation on 12 cases. ECMO was used in 2 patients as a bridge to the lung transplantation to maintain 19 and 6 days respectively, and ECMO support was given during lung transplantation. ECMO was removed after the transplantation if the oxygenation and hemodynamics were stable, otherwise, ECMO was applied continuously until the situation improved. Results All the operations of these patients were accomplished successfully and the ECMO was removed in 27 patients after the operation immediately. The average time with ECMO was 6. 81 + 0. 95 h, and pulmonary artery systolic pressure after lung transplantation was 31.67 + 8. 42 mmHg. The ECMO was continuously used after lung transplantation in three patients until the hemodynamics was stable, and ECMO in 2 of them was removed at 36th h and 6th day respectively after the operation, and one,receiving postoperative ECMO for 5 days, died of acute renal failure 2 weeks after the operation.Conclusion ECMO can replace CPB safely and effectively in lung transplantations for primary or secondary pulmonary hypertension patients. As a respiratory and circulatory support it can control pulmonary hypertension during operative period and can decrease the complications of lung transplantation.

Objective To estimate the effects of risk factors on early survuval (90 days) after lung transplantation for idiopathic pulmonary fibrosis (IPF).Method We reviewed 49 cases of lung tansplant male patients which suffered from IPF.Two groups were set up according to the early survival.The early outcomes (90 days) were compared between two groups by multiple logistic regression analysis.Result The early survival rate was 81.6％.Multivariate analysis confirmed that mean pulmonary artery pressure and bilateral lung transplantation (BLTx) were risk factors after adjustment for potential confounders.Recipients' age,lung volume reduction on donors,and use of extracorporeal membrane oxygenation (ECMO) were not risk factors for early mortality.Conclusion The increased pulmonary artery pressure and BLTx are risk factors for death after lung transplantation in IPF.Preoperative evaluation of mean pulmonary artery pressure and choosing suitable operative method could improve the surgical outcomes of lung transplantation.

Objective To investigate the suitable mode of cognitive-behavioral therapy for lung transplant recipients during waiting for lung and evaluate the effect to improve patients' physical and mental state.Methods 50 cases were randomly divided into the experimental group and the control group,each group with 25 cases.The control group received conventional treatment.The experimental group received cognitive-behavioral therapy in addition to conventional treatment.SAS and vital signs were measured in the two groups on admission,2 weeks and 4 weeks after admission.Results The SAS score of the experimental group was lower than the control group 2 weeks and 4 weeks after admission and SAS score decreased as the intervention extended.The SBp of the experimental group was lower than the control group 4 weeks after admission.There was no significant difference of DBp between two groups.The heart rate of the experimental group was lower than the control group 4 weeks after admission.The heart rate of the experimental group was lower on 2 weeks and 4 weeks after admission than on admission.4weeks after admission,the respiratory rate of the experimental group was lower than the control group and on admission.Conclusions Cognitive-behavioral therapy can reduce the level of anxiety and keep vital signs stable with good feasibility and effectiveness.

Objective To observe the effects of extracorporeal membrane oxygenation (ECMO) on coagulation during lung trangplantation.Method Forty cases of end stage lung diseases received bilateral sequential single lung transplantation during July 2007 and Mar.2012.The patients were divided into two groups in terms of ECMO.ECMO was applied before lung transplantation if needed.The amount of bleeding during surgery was recorded.The venous blood samples were collected during and after operation for the measurements of the following parameters:activated whole blood clot time (ACT),prothrombin time (PT),activated partial thromboplastin time (APTT),thrombin time (TT) and plasma fibrinogen (Fg).Result The coagulation and the amount of bleeding showed no significant difference between the two groups.Wound infection occurred in 2 patients where the ECMO tube was inserted and femoral arterial thrombosis in one patient.All of the three patients were cured and discharged.Conclusion ECMO didn't cause excessive bleeding or coagulation dysfunction during lung transplantation,yet it maybe increase the occurrence of local thrombosis.

Objective To analyze the association of blood uric acid level with the severity of coronary artery stenotic changes, metabolic syndrome (MS), and its components. Methods A total of 343 individuals ( male 223,female 120) who underwent coronary angiography and had complete data on MS and serum uric acid were collected. The severity of coronary artery disease (CAD) was assessed by the coronary stenesis index (CSI). MS was diagnosed according to the Guideline on Prevention and Treatment of Blood Lipid Abnormality in Chinese Adults. Results (1)The mean uric acid level was significantly lower in women than in men [ ( 306.3±76.9 vs 358.9±85.2 ) μmol/L, P＜0.01 ]. The prevalence of MS and its components showed no difference between men and women. (2) The uric acid level in women with 3 components was higher than those with1( P＜0. 01 ) or 2 ( P＜0.05 ) components of metabolic disorders, but not in men. (3) Quartiles of concentration of uric acid were computed. Compared with those in the lowest quartile of uric acid, women in the highest quartile had higher CSI score [ 7.0 (2.5-12.0) vs 2. 0( 0.0-6.0), P= 0. 025 ]. Moreover, the uric acid level was higher in women with multivessel lesions than nonCAD patients [ (327.0±81.9 vs 284.9±78.6) μmol/L, P = 0.033 ]. However, no correlation was found between uric acid level and the severity of coronary artery lesion in men. (4) Logistic regression showed that age (β=0.042, P=0. 007) and dyslipidemia(β=0.836, P=0. 037 ) were the independent risk factors of CAD in men, and hypertension(β=1. 127, P=0.039) and dyslipidemia(β=0.901, P=0.009)in women. Conclusions In women with higher uric acid level, the clustering of metabolic abnormalities was increased, and the coronary artery lesion was more severe. High uric acid level might be a marker of CAD for women.