Objective To compare the advantages of reconstructing the aorta by end-to-side anastomosis with extended end-to-end anastomosis for aortic coarctation （CoA） with cardiac lesions in neonates and infants. Methods There were 63 neonates and infants who underwent median full sternotomy for correction of CoA and cardiaclesions from January 2008 to July 2011 in Guangzhou Women and Children’s Medical Center. These patients were divided into two groups： extended end-to-end anastomosis was performed in 24 patients （end-to-end group, 17 males and 7 females with their mean age of 4.6±2.9 months）and end-to-side anastomosis in 39 patients （end-to-side group, 24 males and 15 females with their mean age of 3.4±2.6 months）. We compared the two groups with regard to postoperative mortality, morbidity and difference in blood pressure between the lower and upper extremities. Results The percentage of newborn patient（23.1% vs. 4.2%; χ2=3.979, P=0.045）and presence of pre-operative acidosis（15.4% vs. 0%; χ2=4.080, P=0.048）were significantly higher in end-to-side group than those in end-to-end group. There was no postoperative death in end-to-end group and 1 patient died after surgery in end-to-side group（2.6%）. The average duration of circulatory arrest in end-to-side group was significantly shorter than that in end-to-end group （18.6±2.7 min vs.23.4±3.7 min, F=14.617, P=0.000）. At the time back to cardiac intensive care unit, the percentage of patients whose difference in systolic pressure between radial and femoral artery ＜ 5 mm Hg, 5-15 mm Hg, and＞ 15 mm Hg was 20.8%, 45.8% and 33.3% respectively in end-to-end group, and 97.4%, 2.6% and 0% respectively in end-to-side group（χ2=40.380，P=0.000）. Twenty-four hours after surgery, the percentage of patients whose difference in systolic pressure between radial and femoral artery＜ 5 mm Hg, 5-15 mm Hg, and＞ 15 mm Hgwas 45.8%, 41.7% and 12.5% respectively in end-to-end group, and 100%, 0% and 0% respectively in end-to-side group （χ2=26.620, P=0.000）. All the surviving 62 patients were followed up for 2-36 months, and there was no patient with angeioma or re-stenosis needing intervention in either group during follow-up. Conclusion End-to-side anostomosis is a safe and effective method for treating CoA with cardiac lesions and eliminating residual stenosis in neonates and infants.
Objective To explore ability of deformation ,small deformation, orientation and in vivo half-life of erythrocytes following intraoperative autotransfusion by ZITI-3000 cell saving system (Jingjing medical facility corporation, Beijing). Methods Twenty consecutive patients undergoing scheduled off-pump coronary artery bypass grafting (CABG) were divided into two groups according to intraoperative autotransfusion, experimental group(n=10): intraoperative autotransfusion was performed; control group (n=10): intraoperative autotransfusion wasn’t used. Laser diffractometer was used to measure deformation index(DI), small deformation index[(DI)d.max], and orientation index [(DI)or.max],and chromium51 istope labeling technique was used to measure half-life of erythrocytes (51C1/2) of processed and unprocessed in vivo. Results There were no significant difference in DI, (DI)d.max, (DI)or.max and 51C1/2 in vivo between experimental group and control group. Conclusion Intraoperative autotransfusion has no significant effect on erythrocytes’s ability of DI, (DI)d.max, (DI)or.max and 51C1/2 in vivo in off-pump CABG.
Objective To explore the efficacy of humidified high flow nasal cannula ( HHFNC) for respiratory failure after ventilator weaning in post-operative newborns and infants with congenital heart disease. Methods FromJanuary 2010 to August 2010, 33 newborns and infants [ ( 7. 8 ±8. 4) months, range 3 days to 36 months; weight ( 6. 6 ±3. 6) kg, range 2. 2 to 19. 6 kg] were treated with HHFNC ( 22 cases) and routine oxygen therapy ( 11 cases) for respiratory failure following ventilator weaning after operation of congenital heart disease. Symptoms, blood oxygen saturation ( SpO2 ) , partial pressure of oxygen( PaO2 ) , partial pressure of carbondioxide ( PaCO2 ) , incidence rate of re-intubation, duration of ICU, and hospital stay were assessed and compared between the HHFNC group and the routine oxygen therapy group.Results There were no statistical significance in the duration of ICU, hospital stay, duration of mechanical ventilation, or infection rate between the HHFNC group and the routine oxygen therapy group ( P gt; 0. 05) . But the incidence rate of re-intubation was lower in the HHFNC group than that in the routine oxygen therapy group. Meanwhile SpO2 and PaO2 increased and PaCO2 decreased significantly in the HHFNC group ( P lt;0. 05) . Conclusion HHFNC shows a clinical improvement rapidly and efficiently in preventing respiratory failure after ventilator weaning in post-operative newborns and infants with congenital heart disease.
Objective To analyze the feasibility of bidirectional Glenn procedure (BDG) in treatment of adult congenital heart disease (ACHD). Methods From December 2004 to December 2015, 42 ACHD patients received BDG in our hospital. There were 23 males and 19 females with a mean age of 24.6±8.5 years (range: 18 to 49 years). There were functional single ventricle (FSV) in 14 patients, Ebstein’s anomaly in 11, corrected transposition of great arteries in 7, transposition of great arteries in 5, double outlet of right ventricle in 3 and tricuspid atresia in 2. Twenty patients suffered moderate or severe atrioventricular valve regurgitation (AVVR). Half of the patients were operated upon with cardiopulmonary bypass (CPB) and the others with off-pump coronary artery bypass grafting (OPCABG). Thirty-four patients underwent unilateral BDG shunt and eight bilateral BDG shunts. Concomitant procedures included correction of Ebstein’s anomaly (7 patients), atrioventricular valve replacement (7), atrial septostomy (3), ligation of patent ductus arteriosus (3), ligation of major aortopulmonary collateral arteries (2), correction of total anomalous pulmonary venous connection (1) and mitral valve repair (1). Results The early operative mortality was 9.5% (4/42). FSV and moderate or severe AVVR were risk factors for BDG in ACHD. Early postoperative oxygen saturation increased from 78.8%±11.2% to 89.3%±6.6% (P<0.05). The follow-up time was 6-132 (41.4±33.1) months. There was no death. The heart function improved (2.7±0.5 vs. 1.9±0.4, P<0.05). Conclusion The BDG shunt can be applied to ACHD. Although the early mortality is relatively high, the middle- and long-term results are satisfactory. The oxygen saturation increases and the heart function improves. The life quality of patients will also improve. FSV and moderate or severe AVVR are risk factors for BDG in ACHD.
Objective To evaluate possibility and reliability of the technique of artificial pulmonary valve reconstruction in right ventricular outflow tract reconstruction. Methods We retrospectively analyzed the clinical data of 35 patients with artificial pulmonary valve reconstruction of right ventricular outflow tract reconstruction surgery in our hospital between February 2012 and December 2016. There were 35 patients with 19 males and 16 females at age of 10 years ranged 5 months to 42 years and body weight of 26 (8–62) kg. There were 21 patients with artificial moncusp valve, 6 patients with bicuspid technology, 8 patients with comprehensive forming method. Results Average extracorporeal circulation time was 75–251 (120±37) min. Aorta blocking time was 32–185 (72±28) min. ICU stay time was 14–225 (59±51) hours. Breathing machine auxiliary time was 6–68 (24±18) hours. There were 3 early postoperative deaths. There was no death during the long term following-up time. Thirty-two patients survived with heart function of class Ⅰ in 20 patients, class Ⅱ in 10 patients, class Ⅲ in 2 patients. Conclusion In right ventricular outflow tract reconstruction using the technique of artificial pulmonary valve reconstruction in the operation, it can reduce early postoperative right ventricular volume load. To smooth out perioperative patients, the surgical technique is simple, cheap, safe, but long-term follow-up still needs further observation.
ObjectiveTo investigate if the ratio of pulmonary valve annulus, which is the proportion of pulmonary valvular annulus size to total size of aortic valvular annulus and pulmonary valvular annulus, can better guide the choice of surgical approach than the value of z.MethodsA retrospective analysis was made for 254 patients who underwent total correction of tetralogy of Fallot in Guangdong General Hospital between January 2016 and January 2018. There were 154 males and 100 females with an average age of 14.60±18.76 years. The patients were categorized into two groups, a transannular patch group (TAP, n=164) and a non-TAP group (n=90). The sizes of pulmonary and aortic valvular annulus were evaluated in each group, and the cutoff value of proportion of pulmonary valvular annulus for TAP was calculated.ResultsBoth proportion of pulmonary valvular annulus and z-scores were smaller in the TAP group than those in the non-TAP group (0.29±0.06 vs. 0.36±0.06, P<0.001; –4.04±2.13 vs. –2.06±1.84, P<0.001, respectively). In receiver operating characteristics analyses, proportion of pulmonary valvular annulus and the z-score cutoff values were 0.353 (area under the curve 0.781, 95%CI 0.725–0.831) and –2.13 (area under the curve 0.766, 95%CI 0.709–0.817), respectively, demonstrating that the proportion of pulmonary valvular annulus was a more powerful diagnostic tool as a predictor of TAP.ConclusionOur results suggest that the proportion of pulmonary valvular annulus is an effective predictor for TAP and can be easily applied to clinical practice.
ObjectiveTo evaluate the application value of virtual reality (VR) technology in the surgical treatment of coronary artery fistula (CAF) and abnormal origin of coronary artery (AOOCA).MethodsFrom January 2014 to June 2018, with the assistance of virtual reality technology, 4 patients with CAF and 4 patients with AOOCA in the Department of Cardiac Surgery of our hospital underwent treatment method deciding and operation details planning. In the CAF patients, there was 1 male and 3 females and they were 8 years, 16 years, 62 years, and 65 years, respectively. In the AOOCA patients, there was 1 male and 3 females at age of 4-month, 2 years, 14 years, and 29 years, respectively.ResultsThe virtual heart models in all 8 patients were well matched with the real heart. The spatial structure information of CAF/AOOCA and surroundings can be intuitively and fully shown by virtual reality technology in all patients. All of the 4 CAF patients repaired coronary artery incision, including 2 patients with autologous pericardium patch and 2 patients with direct suture. Of the 4 AOOCA patients, 3 underwent coronary directly transplantation but 1 underwent Takeuchi surgery. And 2 had mitral valve plasty at the same time. All the operations were completed successfully, with good recovery and no serious complications. Among the 4 CAF patients, 3 had no residual fistula, and 1 had minor residual fistula. Coronary arteries were all unobstructed in 4 patients of AOOCA; moderate and severe mitral regurgitation in 2 patients were significantly reduced after surgery.ConclusionVR allows doctors to understand the spatial structure information of CAF/AOOCA and surroundings before the operation, and assists them to make accurate treatment decisions and develop detailed surgical plans before the operation, ensuring its safety. Its clinical application value is significant.
Objective To analyze the use of modified pericardial oblique sinus approach in surgical repair for total anomalous pulmonary venous connection in neonates. Methods Between May 2005 and December 2015, 67 consecutive neonates with supracardiac or infracardiac type total anomalous pulmonary venous connection who underwent surgical repair in our institute were included in this study. The patients are divided into three groups according to the different approaches including a sulcus approach group (6 patients), a superior approach group (14 patients), and a modified pericardial oblique sinus approach group (47 patients). There were 53 males and 14 females at median age of 12.5 (7.0, 20.5) d. Results The time of cardiopulmonary bypass [88 (80.0, 107.0) min vs. 135 (121.0, 157.0) min, P<0.05] and aortic cross clamping of the modified pericardial oblique sinus approach group was significantly shorter than that of the sulcus approach group [45 (39.0, 53.0) min vs. 80 (73.0, 85.0) min, P<0.05]. Perioperative mortality (2.1% vs. 28.6%, P<0.05) was significantly lower in the modified pericardial oblique sinus approach group than that in the superior approach group. The long-term mortality (4.3% vs. 60.0%, P<0.05) was significantly lower in the modified pericardial oblique sinus approach group than that in the sulcus approach group or the superior approach group . The rate of pulmonary venous stenosis was significantly lower in the modified pericardial oblique sinus approach group than that in the sulcus approach group (2.1% vs. 50.0%, P<0.05) or superior approach group (2.1% vs. 35.7%, P<0.05). Conclusions In surgical correction of neonatal supracardiac and infracardiac total anomalous pulmonary venous, compared with the traditional surgical approach, the modified pericardial oblique sinus pathway can provide excellent surgical space and has a good surgical prognosis.
ObjectiveTo analyze the effects of cardiovascular surgery on Williams syndrome (WS).MethodsThe clinical data of 68 WS patients undergoing cardiovascular surgery in the Department of Cardiac Surgery, Guangdong Provincial People's Hospital from January 2010 to January 2020 were retrospectively analyzed. There were 48 males and 20 females with a median age of 2.8 years ranging from 3 months to 33 years. Except one patient undergoing the coarctation repair, the rest 67 patients underwent surgical interventions to correct supravalvular aortic stenosis (SAVS) and pulmonary artery stenosis with hypothermic cardiopulmonary bypass, concommitant with 3 patients of relief of left ventricular outflow tract obstruction, 2 patients of relief of right ventricular outflow tract obstruction, 2 patients of mitral valvuloplasty, 3 patients of ventricular septal defect repair and 1 patient of arterial catheter ligation.ResultsTwo (2.9%) patients died of sudden cardiac arrest on the next day after surgery. One (1.5%) patient died of cardiac insufficiency due to severe aortic arch stenosis 3 years after surgery. The effect of SAVS was satisfactory. Two (2.9%) patients progressed to moderate aortic valvular regurgitation during postoperative follow-up. A total of 5 (7.4%) patients were re-intervened after operation for arch stenosis or pulmonary stenosis.ConclusionWS patients should be diagnosed early, followed up and assessed for cardiovascular system diseases, and timely surgical treatment has a good clinical effect.
Objective To confirm the changes of pulmonary artery pressure, neo pulmonary artery stenosis and reoperation in children with unilateral absence of pulmonary artery (UAPA) undergoing pulmonary artery reconstruction. Methods The clinical data of the infants with UAPA undergoing pulmonary artery reconstruction in our hospital from February 19, 2019 to April 15, 2021 were analyzed. Changes in pulmonary artery pressure, neo pulmonary artery stenosis and reoperation were followed up. Results Finally 5 patients were collected, including 4 males and 1 female. The operation age ranged from 13 days to 2.7 years. Cardiac contrast-enhanced CT scans were performed in all children, and 2 patients underwent pulmonary vein wedge angiography to confirm the diagnosis and preoperative evaluation. Preoperative transthoracic echocardiography and intraoperative direct pulmonary arterial pressure measurement indicated that all 5 children had pulmonary hypertension, with a mean pulmonary arterial pressure of 31.3±16.0 mm Hg. Pulmonary arterial pressure decreased immediately after pulmonary artery reconstruction to 16.8±4.2 mm Hg. The mean follow-up time was 18.9±4.7 months. All 5 patients survived during the follow-up period, and 1 patient had neo pulmonary artery stenosis or even occlusion and was re-operated. Conclusion Pulmonary artery reconstruction can effectively alleviate the pulmonary hypertension in children with UAPA. The patency of the neo pulmonary artery should be closely followed up after surgery, and re-pulmonary angioplasty should be performed if necessary.