Our country has made great progress in the surgical treatment of congenital heart disease, but after entering the new era, congenital cardiac surgery also presents some new features and trends. The quality of data of Guangdong congenital heart defects monitoring network was recognized by international organizations. We analyzed the data of the incidence of congenital heart disease, the rate of surgical treatment, the mortality of surgical procedures and the quality of surgical treatment in Guangdong province from Guangdong congenital heart defects monitoring network, and then accurately understood the development characteristics of congenital cardiac surgery. It is very helpful to clarify the regional status of congenital cardiac surgery, which is conducive to the development of a more reasonable surgical strategy for congenital heart disease, and finally promote the further development of congenital cardiac surgery in China.
In recent years, three-dimensional (3D) technology has been more and more widely used in the auxiliary diagnosis and treatment of structural heart disease (SHD), and is also an important basis for the application of other technologies such as artificial intelligence. However, there are still some problems to be solved in the clinical application of 3D technology. In this paper, the application of 3D technology in SHD field is reviewed, and the future development of 3D technology is prospected.
Objective To examine the influence of hormonal fluctuations on the perioperative outcomes of patients undergoing congenital heart surgery. Methods We conducted a retrospective analysis of clinical data from fertile women diagnosed with congenital heart disease at the Guangdong Provincial People's Hospital, between January 1, 2015, and July 30, 2019. Initially, patients were categorized into groups based on serum progesterone levels: a low progesterone group (n=31) and a high progesterone group (n=153). Furthermore, based on serum estrogen levels, they were divided into a low estrogen group (n=10), a medium estrogen group (n=32), and a high estrogen group (n=118) for comparative analysis. A control group (n=24) consisted of patients who received progesterone injections before their menstrual period. Results We finally included 184 patients. The patients’ average age was 27.6±5.7 years, with 142 (77.17%) presenting with complex congenital heart conditions. There were statistically significant differences in total postoperative standard thoracic drainage volume and postoperative albumin level between the high and low progesterone groups (P<0.05), while other perioperative outcome indicators showed no statistical differences (P>0.05). Among the different serum estrogen level groups, there were statistically significant differences in postoperative blood urea nitrogen levels, total postoperative standard thoracic drainage volume, and hospital stay (P<0.05), while other perioperative outcome indicators showed no statistical differences (P>0.05). ConclusionConsidering the overall clinical significance, the physiological changes in sex hormone levels appear to have a negligible effect on the perioperative outcomes of fertile women with congenital heart disease.
ObjectiveTo investigate the effectiveness and safety of totally endoscopic transmitral myectomy (TETM) for hypertrophic obstructive cardiomyopathy (HOCM), comparing with traditional sternotomy modified Morrow procedure (SMMP).MethodsThirty-eight patients with HOCM who needed surgical intervention were selected from our hospital in 2019, including 14 males and 24 females, with an average age of 56 (44-68) years. According to the operation method, they were divided into a TETM group (n=18) and a SMMP group (n=20). Appropriate patients were screened by propensity matching scores. Finally, the clinical data of two matched groups were compared and analyzed.ResultsThere was no death, septal perforation, residual left ventricular outflow tract obstruction or third degree atrioventricular block in either group. After propensity score matching, there was no statistical difference between the two groups in the ICU length of stay (41.5±5.0 h vs. 53.0±24.0 h, P=0.620), ventilation time (19.5±9.2 h vs. 38.0±24.0 h, P=0.463), cardiopulmonary bypass time (190.7±45.6 min vs. 156.0±70.7 min, P=0.627), aortic cross-clamp time (100.1±25.3 min vs. 94.5±57.3 min, P =0.915), left ventricular outflow tract gradient (17.0±1.4 mm Hg vs. 5.0±0.5 mm Hg, P=0.053), left atrial anterior and posterior diameter (37.0±1.3 mm vs. 40.0±0.7 mm, P=0.090), interventricular septum thickness (12.5±0.7 mm vs. 13.0±1.4 mm, P=0.712), left ventricular posterior wall thickness (10.0±1.4 mm vs. 10.5±2.1 mm, P=0.811), left ventricular end-diastolic diameter (43.5±3.5 mm vs. 46.0±4.2 mm, P=0.589), and mitral regurgitation (1.0±0.2 vs. 0.7±0.5, P=0.500). The follow-up time was 6±3 months, and no death occurred. In the TETM group, one patient underwent mitral valvuloplasty again three months after surgery because of a tear in the A3 region of mitral valve..ConclusionTETM is a safe and effective procedure that can well expose the interventricular septum at the basal & middle obstruction site and effectively eliminate the mitral regurgitation associated with systolic anterior motion syndrome caused by left ventricular outflow tract obstruction.
Objective To modify the sewing technique of a hand-made bicuspid pulmonary valve using the expanded polytetrafluoroethylene in right ventricle outflow tract reconstruction for summarizing the short-term experience. Methods The patients with complex congenital heart diseases and concurrent contaminant pulmonary regurgitation that underwent right ventricle outflow tract reconstruction through the bicuspid pulmonary valve were enrolled. The postoperative artificial valve function and right ventricle function indexes were evaluated. Results A total of 17 patients were collected, including 10 males and 7 females, with an average age of 18.18 years and an average weight of 40.94 kg. Of 17 patients, 16 used valved conduit for the reconstruction of the right ventricle outflow tract with the size ranging from 18 to 24 mm. There was no patient requiring mechanical circulatory support and no in-hospital death. During the follow-up with a mean period of 12.89 months, only one vale dysfunction occurred without any complications and adverse events (P<0.001). Postoperative right atrium diameter, right ventricle diameter, and tricuspid regurgitation area significantly decreased in contrast to those preoperatively (P<0.05). Conclusion Sewing the bicuspid pulmonary valve utilizing 0.1 mm expanded polytetrafluoroethylene is a feasible, effective, and safe technique of right ventricle outflow tract reconstruction in the field of complex congenital heart diseases.
Objective To comprehensively analyze the clinical outcomes of total cavopulmonary connection (TCPC) in the treatment of functional single ventricle combined with heterotaxy syndrome (HS). MethodsA retrospective analysis was conducted on the patients with functional single ventricle and HS who underwent TCPC (a HS group) in Guangdong Provincial People's Hospital between 2004 and 2021. The analysis focused on postoperative complications, long-term survival rates, and identifying factors associated with patient survival. Early and late postoperative outcomes were compared with matched non-HS patients (a non-HS group). Results Before propensity score matching, 55 patients were collected in the HS group, including 42 males and 13 females, with a median age of 6.0 (4.2, 11.8) years and a median weight of 17.0 (14.2, 28.8) kg. Among the patients, there were 53 patients of right atrial isomerism and 2 patients of left atrial isomerism. Eight patients underwent TCPC in one stage. TCPC procedures included extracardiac conduit (n=39), intracardiac-extracardiac conduit (n=14), and direct cavopulmonary connection (n=2). Postoperative complications included infections in 27 patients, liver function damage in 19 patients, and acute kidney injury in 11 patients. There were 5 early deaths. The median follow-up time was 94.7 (64.3, 129.8) months. The 1-year, 5-year, and 10-year survival rates were 87.2%, 85.3%, and 74.3%, respectively. After propensity score matching, there were 45 patients in the HS group and 81 patients in the non-HS group. Compared to the non-HS group, those with HS had longer surgical and mechanical ventilation time, higher infection rates (P<0.05), and a 12.9% lower 10-year survival rate. Multivariate Cox regression analysis identified asplenia was a risk factor for mortality (HR=8.98, 95%CI 1.86-43.34, P=0.006). ConclusionCompared to non-HS patients, patients with HS have lower survival rates after TCPC, and asplenia is an independent risk factor for the survival of these patients.
Objective To analyze the long-term outcome of modified Morrow surgery (interventricular septal cardiomyectomy) in the treatment of hypertrophic obstructive cardiomyopathy (HOCM) in children. Methods The clinical data of the children with HOCM (aged≤14 years) who underwent modified Morrow surgery from January 2010 to August 2022 in Guangdong Provincial People's Hospital were retrospectively analyzed, including changes in hospitalization status, perioperative period, and long-term 15-lead electrocardiogram and echocardiography. Results A total of 29 patients were collected, including 22 males and 7 females, aged 10.00 (5.00, 12.00) years. Five (17.9%) patients had New York Heart Association (NYHA) heart function grade Ⅲ or Ⅳ. Ventricular septal cardiomyectomy was performed in all patients. All 29 patients survived and their cardiac function recovered after operation. Before discharge, right bundle branch block was observed in 2 patients and left bundle branch block in 6 patients. After surgery, in the left ventricular septal cardiomyectomy, the left atrial diameter decreased (P＜0.001), left ventricular end-systolic diameter increased (P=0.009), the peak pressure gradient of left ventricular outflow tract decreased (P＜0.001), and the thickness of ventricular septum decreased (P＜0.001). The systolic anterior motion of mitral valve disappeared and mitral regurgitent jet area decreased (P＜0.001). The flow velocity and peak pressure gradient of right ventricular outflow tract also decreased in the patients who underwent right ventricular septal cardiomyectomy. The average follow-up of the patients was 69.03±10.60 months. All the patients survived with their NYHA cardiac function grading Ⅰ or Ⅱ. No new-onset arrythmia event was found. Echocardiography indicated that the peak pressure gradient of the left ventricular outflow tract remained low (P<0.001). Moderate mitral regurgitation occurred in 2 patients, and left ventricular outflow tract obstruction with moderate mitral regurgitation occurred in 1 patient after simple right ventricular septal cardiomyectomy. Conclusion Right ventricular or biventricular obstruction is frequent in the children with HOCM and they usually have more symptoms before surgery. Modified Morrow surgery can effectively relieve outflow tract obstruction and improve their cardiac function. The long-term outcome is satisfactory. However, the posterior wall of the left ventricle remains hypertrophic. Also, there is an increased risk of a conduction block.
Objective To analyze and summarize the early and medium-term outcomes of self-expanding interventional pulmonary valve stent (SalusTM) for right ventricular outflow tract dysfunction with severe pulmonary valve regurgitation. Methods We established strict enrollment and follow-up criteria. Patients who received interventional pulmonary valve in transthoracic implantation in Guangdong Provincial People’s Hospital from September 2, 2021 to July 18, 2023 were prospectively included, and all clinical data of patients were collected and analyzed. ResultsA total of 38 patients with severe pulmonary regurgitation were included, with 23 (60.5%) males and 15 (39.5%) females. The mean age was 24.08±8.12 years, and the mean weight was 57.66±13.54 kg. The preoperative mean right ventricular end-diastolic volume index (RVEDVI) and right ventricular end-systolic volume index (RVESVI) were 151.83±42.84 mL/m2 and 83.34±33.05 mL/m2, respectively. All patients successfully underwent transcatheter self-expandable pulmonary valve implantation, with 3 (7.9%) patients experiencing valve stent displacement during the procedure. Perioperative complications included 1 (2.6%) patient of postoperative inferior wall myocardial infarction and 1 (2.6%) patient of poor wound healing. The median follow-up time was 12.00 (6.00, 17.50) months. During the follow-up period, there were no deaths or reinterventions, and no patients had recurrent severe pulmonary regurgitation. Three (7.9%) patients experienced chest tightness and chest pain, and 1 (2.6%) patient developed frequent ventricular premature beats. Compared with preoperative values, the right atrial diameter, right ventricular diameter, and tricuspid annular plane systolic excursion were significantly reduced at 6 months and 1 year postoperatively, with improvement in the degree of pulmonary regurgitation (P<0.01). Compared with preoperative values, RVEDVI and RVESVI decreased to 109.51±17.13 mL/m2 and 55.88±15.66 mL/m2, respectively, at 1 year postoperatively (P<0.01). Conclusion Self-expanding interventional pulmonary valve in transthoracic implantation is safe and effective for severe pulmonary valve regurgitation and shows good clinical and hemodynamic results in one-year outcome.