ObjectiveTo evaluate the role of cardiopulmonary bypass (CPB) technique in the treatment of the abdominal soft tissue tumor (ASTT). MethodClinical data of 9 patients with ASTT who underwent CPB-aided resection in zhongshan Hospital of Fudan University from April 2011 to December 2015 were analyzed retrospectively. ResultsAll patients were performed complete resection of tumor, without perioperative death. Six patients received complete CPB technique and other 3 patients received partial CPB technique. In establishment of CPB, patterns of arterial perfusion included the ascending aorta (n=6) and femoral artery (n=3); patterns of venous drainage included the inferior vena cava (n=2), superior vena cava (n=6), femoral vein (n=2), and jugular vein (n=3). Among of them, 7 patients were diagnosed as intravenous leiomyomatosis, 1 patient was diagnosed as small round cell malignant tumor, and another 1 patient was diagnosed as leiomyosarcoma. Two patients occurred postoperative complications, 1 patient was duodenal fistula, with conservative treatment to heal; another 1 patient was inferior vena cava thrombosis, with treatment of placement of the inferior vena cava filter. Nine patients received follow-up, and follow-up time was 1-57 months (the median time was 4-month), and the survival rate was 100%, no one suffered from recurrence. ConclusionsFor some patients with complicated ASTT, CPB technique can provide chance to completely resect the tumors.
Objective To evaluate the effect of exogenous pulmonary surfactant(PS) replacement therapy for infants who suffered pulmonary injury after cardiopulmonary bypass. Methods Seven infants (age 0.49±0 82 year, weight 4.87±2.18kg) who depended on respiratory mechanical support with clinical and radiological evidence of pulmonary surfactant sufficiency were enrolled in the study. Oxygen index(OI), artery oxygen saturation(SaO 2) and artery bicarbonate pressure(PaCO 2) were measured at 4, 6, 12, 24, 48, and 72 h after the first application of PS(100mg/kg). At the meantime, maximum spontaneous respiratory tidal volume, chest X ray changes and ventilator time were recorded. Results Compared to the baseline values, OI and SaO 2 increased significantly 4 h after PS therapy, with a maximal increase slope (34.7%, 6.6%) after 24 h. While PaCO 2 decreased significantly 4 h after PS therapy, with a lowest decrease slope (22.8%) after 6 h ( P lt;0.05, 0.01). Spontaneous tidal volume and chest X ray si...更多gn were improved in all infants. The success rate of extubation was 85 7%. Conclusion Exogenous PS replacement therapy could improve pulmonary function for postoperative infants, and highly decrease the ventilator time.
Objective To investigate the protection effects of cimetidine for the immune function of patients underwent cardiac operation under cardiopulmonary bypass (CPB). Methods From Jan. 2004 to Jan. 2005, thirty patients suffered from rheumatic cardiac valvular disease received cardiac valve replacement in our hospital, and were divided into cimetidine group and control group.The effects of cimetidine on cellular immune, fluid immune and erythrocytic immune were observed 1d before operation, 1, 3, 5, 7 and 14d after operation. Results After operation,CD3,CD4,CD4/CD8, NK cell activity, Interleukin-2(IL-2), RBC-C3bRR and RBC-ICR in cimetidine group were significantly higher than those in the control group(Plt;0.01). In cimetidine group,those index began to recover on the postoperative 3 to 5 days, and return to normal level on the postoperative 7 days (Pgt;0.05). In control group, 7 and 14 days respectively. Conclusion The protective effects of cimetidine on immune function of openheart operative patients are significant.
Abstract： Objective To observe myocardial protective effect of sevoflurane used in the whole process of cardiopulmonary bypass（CPB）. Methods A total of 150 patients older than 18 years who underwent cardiac surgery under CPB in Fu wai Hospital from January 2010 to November 2011 were enrolled in this double-blind and randomized controlled study. All the patients were randomly divided into three groups：Sevoflurane pretreatment group （Group A，n=50），whole-process Sevoflurane group （Group B，n=50），and whole-process intravenous anesthesia group （Group C，n=50）. Radial artery pressure and other hemodynamic parameters were continuously measured for all the patients. At following time points: CPB beginning （T1），aortic declamping （T2），3 hours after aortic declamping （T3），and 24 hours after aortic declamping （T4），serum concentrations of cardiac troponin I （cTnI） and other parameters were measured by enzyme-linked immunosorbent assay （ELISA）. Results There were 31 males and 19 females at age of 60.43±3.24 years in group A，28 males and 22 females at age of 59.88±4.12 years in group B，31 males and 19 females at age of 58.76±3.87 years. There was no statistical difference in mean arterial pressure （MAP），central venous pressure （CVP），pulmonary artery wedge pressure （PAWP） and heart rate （HR） at respective time points among the 3 groups （P＞0.05）. At T1 and T2，there was no statistical difference in cardiac index （CI） among the 3 groups （P＞0.05）. At T3，there was no statistical difference in CI between Group A and Group C（F=3.382，P=0.845），but CI of Group B was significantly higher than that of Group A and C（F=3.382，3.382； P=0.033，0.020）. At T4，CI of Group B was significantly higher than that of Group A and C （F=13.324，13.324； P=0.005，P=0.000），and CI of Group A was significantly higher than that of Group C （F=13.324，P=0.024）. At T1 and T2，there was no statistical difference in serum concentrations of creatinine kinase MB （CK-MB），cTnI，interleukin-6 （IL-6） and tumor necrosis factor alpha （TNF-α） among the 3 groups （P＞0.05）. At T3 and T4，serum concentrations of CK-MB，TNF-α，IL-6 and cTnI of Group C were significantly higher than those of Group A，and serum concentrations of CK-MB，TNF-α，IL-6 and cTnI of Group A were significantly higher than those of Group B （F=531.616，5.410，3.5813，3.160，1.126，4.702，7.819，5.424，all P=0.000）. Conclusion Sevoflurane used in the whole process of CPB has definite myocardial protective effect which is ber than that of Sevoflurane pretreatment.
Abstract： Objective To observe the significance of the changes of cell adhesion molecules (CAM) CD11b/CD18 and sPselectin during the perioperative period of open heart surgery under cardiopulmonary bypass (CPB), and investigate the roles of CD11b/CD18 and sPselectin in systemic inflammatory response triggered by CPB. Methods Thirty patients including 18 males and 12 females, age ranged from 29 to 55 years (45.3±8.1 years) having undergone valvular replacement for rheumatic heart disease in our hospital were selected as the subjects of this research. After anesthesia induction, radial arterial blood sample was collected at six different time points including the time prior to skin incision, and 30 min, 1 h, 6 h, 12 h and 24 h following the start of CPB. The expression levels of CD11b/CD18 were tested by flow cytometry, and concentration of sP-selectin in the plasma was measured with enzymelinked immunosorbent assay(ELISA). Results The expression of CD11b/CD18 was elevated at 30min after CPB, and it reached the peak (581.44±215.26) at 6 h after CPB with significant differences (Plt;0.05). Its expression started to drop at 12 h after CPB, but it was still higher than the expression level before CPB. The expression returned under the level before CPB at 24 h after CPB with insignificance differences (Pgt;0.05). The expression of sPselectin in the peripheral blood started to rise evidently at 30 min after CPB, reaching the peak (51.44±10.06 ng/ml) with significant differences (Plt;0.05). Its expression level decreased at 12 h after CPB and fell back below the level before CPB with insignificant differences (Pgt;0.05). Conclusion CPB can cause the expression of CD11b/CD18 and sPselectin to rise in the peripheral blood, which may play an important role in the systemic inflammatory response triggered by CPB.
Objective To introduce alternative approach of right auxiliary artery cannulation through a 8 mm hemoshield graft for cardiopulmonary bypass and selective antegrade cerebral perfusion. Methods Twentythree cases of acute type A dissection and 7 cases of ascending aortic aneurysm, in which aortic arch was involved, were evaluated. An 4-5 cm long incision beneath right clavicle was made to expose auxiliary artery with auxiliary vein and brachial plexus intact. An 8 mm hemoshield graft was anastomosed to auxiliary artery and connected to the arterial end of cardiopulmonary bypass circuit. The auxiliary artery cannula was used for arterial perfusion and also used for selective antegrade cerebral perfusion. Fifteen total arch and 15 semi-total arch replacement were performed. The graft connecting auxiliary artery was simply ligated when cardiopulmonary bypass was concluded. Results Arterial perfusion flow and pressure through auxiliary artery were not significantly different from that of cannulation via ascending aorta. No significant postoperative cerebral deficits and complications of right upper limb associated with cannulation of auxiliary artery occurred. Conclusion Arterial perfusion through right auxiliary artery provides an excellent approach for surgery of acute type A dissection and ascending aortic aneurysm with optimized body perfusion and allows for antegrade cerebral perfusion during circulatory arrest.
Objective To summarize the experience of the surgical treatment of complex congenital heart diseases in 29 newborns. Methods Twenty-nine newborns were operated on for various congenital heart diseases, ages were from 3 to 28 d. There were ventricular septal defect 3 cases, D-transposition of the great arteries (D-TGA) 10 cases, pulmonary atresia (PA) 1 case,tricuspid atresia 3 cases, single ventricle 1 case, tetralogy of Fallot 6 cases, endocardial cushion defect 4 cases and truncus arteriosus 1 case. All patients were combined with atrial septal defect and patent ductus arteriosus. All operations were performed under hypothermic cardiopulmonary bypass. Results The operative mortality was 13.8%(4/29). One case with D-TGA and 1 case with PA succumbed due to low cardiac output syndrome, and 2 cases due to acute respiratory distress syndrome and low blood oxygen saturation. Twenty-five cases were discharged. Follow-up was completed in 19 patients,with a duration of 1-31 months, all patients have been normal. Conclusion Anesthesia and cardiopulmonary bypass should be performed smoothly and satisfactorily in newborn babies for cardiac surgery. Surgical manipulation should be accurate with less trauma and well protection of myocardium and lung is important.
Abstract: Objective To summarize the clinical experience of plasma exchange （PE） during recardiopulmonary bypass (CPB) of patients with severe haemolysis in cardiac surgery. Methods Between January 2001 and December 2005, five patients required PE for severe haemolysis after cardiac surgery. There were periprosthetic leakage and infective endocarditis in 3 patients, congenital heart disease of pulmonary artery stenosis with unsatisfied right ventricular outflow tract patching in 1 patient and thrombosis during extracorporeal membrane oxygenation (ECMO) in 1 patient. They all need blood purification to avoid acute renal failure. Results Five patients were successfully treated with PE during CPB without major complications. The amount of plasma and blood transfused in the 5 patients were 2.2±0.8L and 0.6±0.3L respectively. The volume of plasma exchange and ultrafiltrate were 3.9±1.8L and 2.4±1.3L respectively.The electrolytes and bloodgas analysis in all patients were maintained at the normal levels. The hemodynamics was stable. After heart resuscitation CPB stopped smoothly. Disappearance of periprosthetic leakage and satisfaction of right ventricular outflow tract patching were observed by echocardiograms after peration.Extubation was performed 24h after the operation in 5 patients, and they were discharged 12 to 53 d after the operation with fully recovery. The urine was clear and the body temperature was normal. Before they left thehospital, the concentration of free hemoglobin was tested in 3 patients. The concentration of free hemoglobin was slightly higher in 1 patient (68mg/L), and normal in 2 patients (lt;40mg/L). Conclusion PE during CPB in severe haemolysis is a safe technique which can effectively prevent acute renal failure caused by severe mechanical haemolysis after cardiac surgery.
ObjectiveTo evaluate the safety of modified blood-sparing approach in cardiac surgery with cardiopulmonary bypass (CPB) in low-weight infants (≤15 kg) with congenital heart disease. MethodsA total of 283 infants were applied a new blood-sparing approach, known as without homologous blood priming, during the cardiac surgery with CPB between August 2012 and October 2013. There were 154 males and 129 females with a median (interquartile range) age of 13 (9, 20) months. The infants were assigned to an intraoperative transfusion (IT) group once having transfusion during operation. And the infants without transfusion during operation were assigned to a postoperative transfusion (PT) group or a transfusion-free (TF) group according to post-operative transfusion. All infants experienced routine heart surgery with CPB. Blood samples were collected at following time points, ie. pre-CPB, 10 minutes after CPB, before termination of CPB, and after modified ultrafiltration. Clinical data and transfusion requirements were collected and compared between three groups. ResultsA total of 106 infants (53 males and 53 females) completed bloodless surgery. The median (interquartile range) age was 14 (9, 22) months. A total of 121 infants (71 males and 50 females) received red blood cell (RBC) transfusion intraoperatively. The median (interquartile range) age was 10 (8, 12) months. A total of 56 infants (30 males and 26 females) at age of 15 (7, 20) months received RBC transfusion postoperatively. The intraoperative transfusion (IT) group had lower body weight (9 (7,10) kg vs. 12.6 (9,14) kg) and size (72 (68, 80) cm vs. 86 (78, 97) cm), younger age (10 (8, 12) months vs. 14 (9, 22) months), and higher 24-hour chest tube drainage volume (89 (40, 122) ml vs. 58 (30, 106) ml, P<0.05) than those in the transfusion free (TF) group. Pre-operative hematocrit was also lower in the IT group than that in the PT group and the TF group (32% (29%, 37%) vs. 39% (34%, 41%) vs. 36% (33%, 38%), P<0.05). The hospital stay in the PT group and the IT group was longer than that in the TF group, respectively (13 (8, 23) d vs. 14 (11, 22) d vs. 11(8, 20) d, P<0.05). ConclusionAlthough applied with blood-sparing approach, perioperative transfusion is required in some infants. Infants who are free from transfusion have shorter hospital stay and less 24-hour chest tube drainage volume. Consideration of risk factors of transfusion in this population may benefit further reduction in blood transfusion in the future.