Echocardiographic and Computed-tomographic Evaluation of the Fate of Bovine Pericardial Patch as a Pericardial Substitute in Bentall’s Procedure: Twenty-year’ Results

Objective: The study was designed to ascertain the influence of usage of bovine pericardial patch in patients undergoing Bentall’s procedure with respect to reexploration for bleeding, mediastinal infection, avoidance of conduit adhesions, late development of pericardial constriction and calcification. Materials and Methods: We reviewed 150 patients (79 males) aged between 22 to 68 years (mean±SD 49.25±12.9 years) receiving a composite aortic conduit between January 1998 to December 2020 for annuloaortic ectasia (n=100), aortic dissection (n=49), and dilated aortic root in repaired tetralogy of Fallot (n=1). Twenty-five patients had Marfan’s syndrome. Modified “button technique” was performed by interposing a glutaraldehyde treated pericardial strip at the graft coronary anastomoses, and proximal aortic conduit suturing using interlocking interrupted, pledgeted mattress suture. On completion, the pericardial cavity was reconstructed using St. Jude Medical Biocor pericardial patch. To detect evidence of pericardial constriction, survivors underwent echocardiography and computed tomography. The Kaplan-Meier curve was drawn to show the probability of survival over a period of follow-up time. Results: Seven (4.7%) patients died of cardiac-related cause, 45% had transient hemodynamic instability, 55% had low cardiac output, and 87.1% had spontaneous return of sinus rhythm. The average 12-hour postoperative drainage was 245±70 ml and there was no mediastinal infection. At a mean follow-up of 172.4 (SD± 58.9) months, the actuarial survival was 94.2±0.04% (95% CI: 88.5-96.8), and there was no pericardial constriction or calcification. Conclusion: Reconstruction of pericardial cavity using Biocor bovine pericardial patch minimizes diffuse oozing of blood, graft infection, and is not associated with later development of pericardial constriction, or calcification.

Conditional Survival of Advanced Epithelial Ovarian Cancer: A Real-World Data Retrospective Cohort Study From the SEER Database

Objective: To analyze conditional survival (CS) in patients with advanced epithelial ovarian cancer (EOC) and investigate prognostic factors that affect the CS rate to provide more accurate survival information.Methods: Patients with advanced EOC between 2004 and 2015 were identified from the Surveillance, Epidemiology, and End Results (SEER) database. CS analysis was performed to depict exact survival for patients who had already survived a specific number of years. Cox proportional hazards regression was performed to ascertain the individual contribution of factors associated with actuarial overall survival (OS) at diagnosis and CS at 1, 3, and 5 years after diagnosis.Results: Of 11,773 patients, OS decreased from 32.2% at 6 years to 25.1% at 8 years, while the corresponding 5 year CS (CS5) increased from 37.5% at 1 year to 43.9% at 3 years. Subgroup analysis stratified by clinicopathological characteristics showed that CS5 was always higher than the corresponding actuarial survival (all Δ > 0). Based on multivariate analysis at diagnosis, age, race, marital status, histological type, tumor grade, size, T stage, M stage, surgery, radiation therapy, and chemotherapy were independent prognostic factors for OS. Five years after diagnosis, however, only age, histological type, tumor grade, and laterality were persistently significant independent prognostic factors (all P <0.05). Furthermore, patients with poor pathological prognostic factors achieved greater improvements in CS5 rates, and the survival gaps between OS and CS were more obvious.Conclusion: CS of advanced EOC was dynamic and increased over time. Age, histology, tumor grade, and laterality were significant prognostic factors even 5 years after diagnosis. Thus, the availability of updated prognoses at various time points will allow clinicians to better guide their patients.

An Integrated Approach for Treatment of Acute Type A Aortic Dissection

Background and objective: We reviewed a single-institution experience to verify the impact of surgery during different time intervals on early and late results in the treatment of patients with type A acute aortic dissection (A-AAD). Materials and Methods: From 2004 to 2021, a total of 258 patients underwent repair of A-AAD; patients were equally distributed among three periods: 2004–2010 (Era 1, n = 90), 2011–2016 (Era 2, n = 87), and 2017–2021 (Era 3, n = 81). The primary end-point was to assess whether through the years changes in indications, surgical strategies and techniques and increasing experience have influenced early and late outcomes of A-AAD repair. Results: Axillary artery cannulation was almost routinely used in Eras 2 (86%) and 3 (91%) while one femoral artery was mainly cannulated in Era 1 (91%) (p < 0.01). Retrograde cerebral perfusion was predominantly used in Era 1 (60%) while antegrade cerebral perfusion was preferred in Eras 2 (94%,) and 3 (100%); (p < 0.01). There was a significant increase of arch replacement procedures from Era 1 (11%) to Eras 2 (33%) and 3 (48%) (p < 0.01). A frozen elephant trunk was mainly performed in Era 3. Hospital mortality was 13% in Era 1, 11% in Era 2, and 4% in Era 3 (p = 0.07). Actuarial survival at 3 years is 74%, in Era 1, 78% in Era 2, and 89% in Era 3 (p = 0.05). Conclusions: With increasing experience and a more aggressive approach, including total arch replacement, repair of A-AAD can be performed with low operative mortality in many patients. Patient care and treatment by a specific team organization allows a faster diagnosis and referral for surgery allowing to further improve early and late outcomes.

Late outcomes of percutaneous coronary interventions (PCI) and subsequent life-quality in patients younger 40 years of age

Background Late results of PCI in patients aged ≤40 years are few presented without differentiation of groups with acute coronary syndrome (ACS) vs. Stable Angina, and age borderlines≤35 years vs. 36–40 years. Health-life quality following PCI in patients ≤40 years of age not studied. Objective To analyze predictors of outcomes, and subsequent life-style in patients aged ≤35 vs. 36–40 years underwent PCI according to ACS vs. Stable Angina. Material Enrolled 208 consecutive patients with coronary artery disease aged 24–40 years, of them 157 (75.5%) – aged 36–40 years, 51 (24.5%) – ≤35 years. 197 (94.7%) patients underwent revascularization of the myocardium, of them: 165 (79.3%) patients underwent PCI; 32 (15.4%) – CABG. 11 (5.3%) patients abandoned revascularization. Late results of PCI, and subsequent health-life quality studied in 126 (76,4%) of 165 patients on 10–108 months (mean 62,5±2,6). Results 84 (50.9%) patients underwent PCI according to ACS; 81 (49.1%) – Stable Angina, without any complications. In-hospital, and 30-days mortality 0%. Actuarial survival on 9 years comprised 99,2%; cardiac mortality – 0,8%; events-free survival on 1–2–3 years comprised 90,5–84,1%-81,7%; on 5–9 years – 79,4%. Active lifestyle verified in 74,6% patients; sparing lifestyle – in 25,4%; return to work – in 86,5% patients. 88,1% examined preserved family; transitory sexual disorders revealed in 28,6% patients. Regular medication, and dietary regimen followed by 83,3% & 27,8% patients. Continue smoking & abuse energetic drinks 34,1% & 23,8% examined; overweight and obesity persisted in 23,8% & 19% examined patients. 23% patients fall in depression tied with re-MI/ angina; 18,3% – with quarantine (COVID-19); 6,3% examined suffered “panic attack” waiting recurrence of angina. Re-MI/angina revealed in 23% patients; 20,6% examined underwent re-PCI. Conclusion Predictors of poor outcomes were: 1) ACS; 2) age in time of PCI ≤35 years; 3) early MI, DM, LVEF ≤35–40%; 4) used stents diameter&lt;28mm.; 5) continued smoking, and abuse of energetic drinks. Leading independent predictor – aggressively current atherosclerosis & DM in individuals ≤40 years of age leading to rapid dysfunction of stents; in patients with patency stents – lesion of native or “protected” coronary arteries. FUNDunding Acknowledgement Type of funding sources: None.

Kết quả phẫu thuật điều trị bệnh lý gián đoạn quai động mạch chủ tại Bệnh viện Nhi Trung ương

TÓM TẮT Mục tiêu: Đánh giá kết quả tạo hình quai động mạch chủ trong phẫu thuật một thì điều trị bệnh lý GĐQĐMC tại Bệnh Viện Nhi Trung Ương từ năm 2012 đến 2019. Phương pháp: Nghiên cứu hồi cứu 53 bệnh nhân được phẫu thuật sửa chữa một thì bệnh tim bẩm sinh GĐQĐMC từ tháng 01 năm 2012 đến tháng 12 năm 2019. Kết quả: Bệnh nhân gồm 32 nam và 21 nữ. Tuổi trung bình là 43 ± 53 ngày, cân nặng trung bình khi phẫu thuật 3.4 ± 0.7 kg. Trung bình thời gian chạy máy tim phổi nhân tạo (TPNT) là 128 ± 28 phút, thời gian cặp chủ 92 ± 18 phút và thời gian tưới máu não chọn lọc là 34 ± 11 phút. Tử vong sớm sau mổ có 9 bệnh nhân (16.9%). Thời gian theo dõi trung bình 37 ± 21 [8-95] tháng. Tỷ lệ sống sót chung sau phẫu thuật là 83% tại thời điểm 8 năm. Tỷ lệ sống sót không phải can thiệp lại do tái hẹp quai ĐMC là 97.6% tại thời điểm 8 năm, không có bệnh nhân tử vong trong quá trình theo dõi. Kết luận: Phẫu thuật một thì sửa chữa bệnh lý GĐQĐMC ở Bệnh viện Nhi Trung ương là hoàn toàn khả thi và có thể thực hiện được ở lứa tuổi sơ sinh và nhũ nhi với tỷ lệ tử vong thấp. Từ khóa: Gián đoạn quai động mạch chủ, thông liên thất, hẹp đường ra thất trái, cửa sổ chủ phế. ABSTRACT OUTCOMEOF SURGICAL REPAIR FOR INTERRUPTED AORTIC ARCH IN NATIONAL CHILDREN’S HOSPITAL, HANOI Objective: The objective was to determine outcomes of aortic arch reconstruction in one-stage repair of interrupted aortic arch in Nation Hospital of Pediatrics from 2012 to 2019. Methods: Records of 53 consecutive patients undergoing interrupted aortic arch repair between January 2012 to December 2019 were reviewed. Single-stage repair was performed in all of the patients. Results: The patients consisted of 32 males and 21 females. Mean age of the patients was 43 ± 53 days and mean weight was 3.4 ± 0.7 kg. The average cardiopulmonary bypass time was 128 ± 28 minutes, the aortic cross-clamp time was 92 ± 18 minutes and the selective cerebral perfusion time was 34 ± 11 minutes. Early mortality was 16.9%. Mean follow-up was 37 ± 21 [8-95] months. Actuarial survival including early death was 83% at 8 years. The freedom from reintervention of recurrent aortic arch obstruction was 97.6% at 8 years. No late death occurred. Conclusions: Single-stage repair of interrupted aortic arch with intracardiac defects is safe and feasible with newborn and infant in National Hospital of Pediatrics. Keyword: Interrupted aortic arch, ventricular septal defect, left ventricular outflow tract obstruction, aortopulmonary window

Effects of universal critical CHD screening of neonates at a mid-sized California congenital cardiac surgery centre

Introduction: CHD affects over 1 million children in the United States. Studies show decreased mortality from CHD with newborn cardiac screening. California began a screening programme on 1 July, 2013. We evaluated the effect of mandatory screening on surgical outcomes at Loma Linda University Children’s Hospital since 1 July, 2013. Methods: We evaluated all infants having congenital heart surgery at Loma Linda University Children’s Hospital between 1 July, 2013 and 31 December, 2018. Primary target diagnoses include hypoplastic left heart syndrome, pulmonary atresia with intact ventricular septum, tetralogy of Fallot, total anomalous pulmonary venous return, transposition of the great arteries, tricuspid atresia, and truncus arteriosus. Secondary target diagnoses include aortic coarctation, double outlet right ventricle, Ebstein anomaly, interrupted aortic arch, and single ventricle. Patients were stratified by timing of diagnosis (pre-screen, screen positive, and screen negative). Primary end points were post-operative length of stay, operative mortality, absolute mortality, and actuarial survival. Results: The cohort included 274 infants. Of these, 79% were diagnosed prior to screening (46% prenatally). Only 38% of those screened were positive, with 13% of the cohort having a “missed diagnosis.” Conclusions: Primary targets were more likely to be diagnosed by screening (53%), while secondary targets were unlikely to be diagnosed by screening (10%) (p = 0.004). Outcomes such as length of stay, operative mortality, and actuarial survival were not different based on timing of diagnosis (p > 0.05). Despite late diagnosis, those not diagnosed until after screening did not have adverse outcomes.

Tracheostomy in Infants after Cardiac Surgery: Indications, Timing and Outcomes

Objective: There is little consensus on the indications and optimal timing of tracheostomy in the pediatric population. Our primary aim was to determine if early tracheostomy improves patient outcomes (between 10th and 15th postoperative day). Methods: A retrospective review of 84 neonates and infants requiring tracheostomy after cardiac surgery between January 1997 and December 2019 was performed. Indications and timings for tracheostomy, and risk factors for mortality were analyzed using Cox regression analysis. The receiver operating characteristic curve analysis, Youden’s index, sensitivity and specificity plot were performed to determine the optimal cut-off point of the timing of tracheostomy. Results: Twenty-five (29.76%) neonates and 59 (70.23%) infants with a median weight 7.6 kg (IQR: 3.1-9.25 kg) were studied. Extubation failure and unsuccessful weaning from ventilator occurred in 45 (53.6%) and 39 (46.4%) patients respectively. The timing of tracheostomy of 15 days as the optimal cut-off point was associated with a sensitivity of 73% and a specificity of 84% and a Youden’s index of 0.60. Early tracheostomy was associated with decreased mortality (p<0.001), morbidity (p<0.001), decreased duration of ventilation (p<0.001), ICU length of stay (p<0.001) and decreased time of decannulation (p<0.001). The hazard of death was 5.26 times (95% CI: 1.47-20.36) higher in patients undergoing late tracheostomy. At a median follow-up of 166 (IQR: 82.5-216) months, the actuarial survival was 86.61%±0.04%. Conclusions: Early tracheostomy within 15th postoperative day was associated with lower perioperative and late mortality, morbidity and ICU stay compared with tracheostomy between 15-30 days, and confers significant long-term advantages.

MO141ACUTE KIDNEY INJURY AS A RISK FACTOR FOR MORTALITY IN ONCOLOGICAL PATIENTS RECEIVING CHECK-POINT INHIBITORS

Background and Aims Checkpoint inhibitors (CPI) have drastically improved metastatic cancer outcomes. However, immunotherapy is associated to multiple toxicities, including acute renal injury (AKI). Data about CPI related AKI are limited. Our aim was to determine risk factors for CPI related AKI, as well as its clinical characteristics and its impact on mortality in patients undergoing immunotherapy. Method All patients under CPI at our center between March 2018 and May 2019, and with a follow up until April 2020, were included. Demographical, clinical data and laboratory results were collected. AKI was defined according to KDIGO guidelines. We performed a logistic regression model to identify independent risk factors for AKI and actuarial survival analysis to establish risk factors for mortality in this population. Results 759 patients were included, with a median age of 64 years. 59% were men and baseline median creatinine was 0.80 mg/dL. Most frequent malignance was lung cancer and 56% were receiving PD1. 15.5% developed AKI during the follow-up. Age and baseline kidney function were identified as independent risk factors for AKI related ICI. At the end of follow-up, 52.3% patients had died. Type of cancer (not melanoma, lung or urogenital malignance), type of CPI (not CTLA4, PD-1, PD-L1 or their combination) and the presence of an episode of AKI were identified as risk factors for mortality. Conclusion 15.5% of patients under immunotherapy presented AKI. A single AKI episode was identified as an independent risk factor for mortality in these patients and age and baseline renal function were risks factors for the development of AKI.

Performance of Mechanical and Biological Mitral Prostheses in Young Rheumatics Aged Below 45 Years

Background and Aim: We compared 22-year composites of valve-related reoperation, morbidity, and mortality following mitral mechanical and bioprostheses in young rheumatics aged <45years. Methods: Retrospective comparative analysis of valve-related reoperations and survival data were performed from 466 consecutive propensity matched patients undergoing either bioprosthetic MVR (Group I, n=233) or mechanical MVR (Group II, n=233) between 1998 and 2019. Results: The median age was 33 (IQR: 27-40) and 34 (IQR: 28-39) years for Group I and II respectively. The mean follow-up was 3278.9 patient-years in the biological arm and 3384.4 patient-years in mechanical arm. Bioprosthetic arm exhibited lesser cumulative mortality (4.5% vs 9.9%, SMD= -0.04, p=0.65). Hazard regression for mortality included (HR, 95% CI) preoperative congestive heart failure (CHF) 11.44 (8.44, 624.9), p<0.0001; renal failure 19.51 (8.04, 47.35), p<0.0001; previous operation 6.84 (2.48, 18.84), p<0.0001; atrial fibrillation (AF) 7.64 (1.02, 57.13), p=0.006; LA clot 61.94 (8.28, 463.08), p<0.0001; giant LA >65 mm 7.87 (2.62, 23.56), p<0.0001; poor left ventricular (LV) function 0.94 (0.92, 0.97), p<0.0001; and prolonged aortic clamp time 1.07 (1.04, 1.11), p<0.0001). Propensity matching did not exhibit any difference in reoperations between bioprostheses and mechanical prostheses (18.8% vs 13.3%, SMD= -0.152, p=0.1). At a median follow-up of 136 (IQR: 76-197) months, actuarial survival was 90.32%±0.02% (p=0.09) and there was no difference between the groups (p=0.09). Conclusions: Bioprostheses are an acceptable alternative to mechanical prostheses in young rheumatics aged <45 years unwilling for mechanical valve, redo surgeries, life-long anticoagulation, and those desirous of pregnancy.

Cirugía de preservación valvular como alternativa en enfermedad de la raíz aórtica. Resultados alejados

Background: Since 1968, ascending aorta replacement with a valved conduit has been the standard practice for aortic root aneurysm. By the end of the 20th century, aortic valve sparing operation emerged and evolved as an alternative to aortic valve replacement. Objective: The aim of this study was to report our experience with aortic valve sparing technique and its long -term outcomes. Methods: A total of 116 consecutive cases with criteria of repairability operated on between 2005 and 2019 were analyzed. Preopera- tive transesophageal echocardiography (TEE) and computed tomography angiography (CTA) were used in combination to determine the aortic phenotype based on a previous anatomical and functional classification. Perioperative control was performed and conver- sion to aortic valve replacement was left to the discretion of the attending surgeon. Intraoperative variables, in-hospital morbidity and mortality, freedom from significant aortic regurgitation (AR) and reoperation in the clinical and echocardiographic follow-up were reported. Results: Mean age was 56±15.6 years and 73% were men; 59% were asymptomatic, and the reason for the intervention was the aortic diameter (52±11.7 mm) or progression of AR. After the procedure, 4% of the cases presented mild or trivial AR and 2 patients required conversion to aortic valve replacement (1.7%). In hospital mortality was 0.9%. Actuarial survival was 88% at 10 years, and 79% were free from significant (moderate/severe) AR. Five cases underwent reoperation after a mean interval of 9.1 years and free- dom from reoperation at 10 years was 90%. There were no major thromboembolic or bleeding events. Conclusion: Aortic valve sparing technique in the setting of aortic root disease is a feasible and safe option, and stable over time