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 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.
ObjectiveTo summarize our experience of right axillary straight mini-thoracotomy for surgical treatment of common congenital heart diseases in infants. MethodsWe conducted a retrospective analysis of 369 infants undergoing open heart surgery through right axillary straight mini-thoracotomy in the 153th Central Hospital of People's Liberation Army from April 2009 to April 2013. There were 191 males and 178 females with their mean age of 8.2±3.1 months (range, 3-12 months)and body weight of 7.8±4.5 kg (rang, 4.5-11.2 kg). Surgical procedures included ventricular septal defect (VSD)repair in 290 patients, atrial septal defect (ASD)repair in 16 patients, VSD and ASD repair in 34 patients, VSD repair and mitral valvuloplasty in 4 patients, valvotomy for pulmonary valve stenosis (PVS)in 9 patients, ASD repair and valvotomy for PVS in 6 patients, correction of partial anomalous pulmonary venous connection in 4 patients, and correction of partial atrioventricular canal defect in 6 patients. ResultsSix patients (1.6%)died postoperatively. Postoperative complications included right atelectasis in 3 patients, right pneumothorax in 2 patients, pneumonia in 16 patients, incision fat liquefaction in 12 patients, third-degree atrioventricular block in 1 patient, cerebral air embolism in 1 patient, and reexploration for bleeding in 3 patients. A total of 295 patients were followed up for 6 to 12 months after discharge. Residual VSD shunt was found in 4 patients, and mild mitral regurgitation was found in 2 patients. ConclusionClinical outcomes of right axillary straight mini-thoracotomy during open heart surgery are satisfactory for infants with common congenital heart diseases, but strict indications and skillful surgical techniques are needed.