Surgical Management of Anomalous Right Coronary Artery in the Adult: Technique and Case Series.

BACKGROUND: The management of adult patients with anomalous aortic origin of the right coronary artery (ARCA) from the left aortic sinus poses important challenges. The presence of symptoms or documented ischaemia, the anatomical characteristics of the ostium, and the course of the coronary determine decision-making. METHODS: A retrospective review was performed of all cases of surgical management of ARCA at a single centre. The primary endpoints were mortality and myocardial infarction at 30 days. Secondary endpoints included recurrence of symptoms, freedom from re-intervention, and mortality during long-term follow-up. RESULTS: From October 2019 to August 2023, 15 adult patients underwent surgery for ARCA; 13 patients were included in this study (mean age 53.9±11.1 years; 10 female). A slit-like orifice, a long intramural segment, and an interarterial course were found in all patients. Twelve (12) patients (92.3%) were symptomatic: nine with angina, combined with dyspnoea on exertion in seven. One (1) patient had history of pre-syncope. One (1) patient presented with out-of-hospital cardiac arrest. All patients underwent formal unroofing of the orifice and intramural portion of the ARCA; five patients had a concomitant procedure. No 30-day mortality nor myocardial infarction was recorded. At a mean follow-up of 20.1±12.8 months, all patients were alive. One (1) patient (7.6%) developed recurrent dyspnoea; investigations showed no ischaemia. No repeated interventions were required. CONCLUSIONS: Surgical unroofing of anomalous coronary artery in the adult is safe and effective; correction of both the slit-like orifice and intramural portion of the anomaly provides a durable result in patients with ARCA.

Impact of digital transformation on the future of medical education and practice.

In this article, the author provides synopses of the factors that have finally propelled health-care education and practice to join, at times reluctantly, the overarching digital transformative process that has been swept other industries over the last few decades. The key contributors and driving forces that have energized the entry of health-care education and practices are mentioned. The roles of major universities, large technology companies, and the expanding roles of Artificial Intelligence and Machine Learning are described. The projected future developments are predicted to continue to be substantial, sweeping, and forcing changes that are unprecedented. Thus, academicians and practitioners should be alerted to what the rapidly changing landscape is likely to become and accordingly take steps to manage and preserve their roles or risk be left behind or worse be forced out.

The surgical technique of the convergent procedure.

The convergent procedure is a newly developed hybrid ablation procedure that involves extensive epicardial ablation of the posterior left atrial wall followed by endocardial mapping and addition of pulmonary vein isolation. It is a team-based approach that provides a promising option for patients with persistent and permanent atrial fibrillation. In this manuscript, we present a detailed description of the surgical component of this procedure and include potential pitfalls based on our experience in performing it.

Editorial: Telemedicine in the era of coronavirus 19: Implications for postoperative care in cardiac surgery.

Telemedicine, telehealth and artificial intelligence in healthcare are becoming commonly utilized in various medical specialties. The article authored by Dr. Aminah Sallam and colleagues in the Journal provides data in support of the cardiac surgical patients, and the caring cardiac surgeons willingness to adopt telemedicine as a method of connectivity between patient and surgeon.

Advances in technology and remote cardiac monitoring: Living the future of cardiovascular technology.

Hospital administrations and providers are more than ever in need for new technologies and innovative methods with clinical benefit at lower costs. Surgeons and clinicians depend on conventional risk stratification scores developed to allow physicians to establish the risk of perioperative mortality. However, the current practiced models of preventive cardiology largely depend on patient motivation and awareness to be able to apply such risk scores appropriately. It was not until the appearance of miniaturized pocket-sized, user-friendly digital technologies that the awareness started to grow, highlighting the importance of role of technology and artificial intelligence in modern-day medicine.

Lessons learned on a new procedure: Nonsternotomy minimally invasive pulmonary embolectomy.

The endpoint in emergent management of acute massive pulmonary embolism (PE) has traditionally been with embolectomy through a standard median sternotomy. This approach is limited in both exposure and concomitant functional morbidity associated with sternotomy. In a previous publication, we described a novel minimally invasive, thoracoscopically assisted approach to pulmonary embolectomy. This approach utilized a small 5-cm left upper parasternal thoracotomy and femoral cardiopulmonary bypass to conduct thoracoscopically assisted surgical pulmonary embolectomy. The first publication featured three patients that had a massive pulmonary embolus that was treated with minimally invasive pulmonary embolectomy, and the initial data was positive and suggested that this approach is safe and feasible. We now broaden our experience with another two patients who underwent this approach, and highlight a number of technical and management modifications that have been made to optimize the procedure. These lessons learned will ideally benefit future surgeons as this approach is more heavily implemented in practice.

Outcomes of convergent atrial fibrillation ablation with continuous rhythm monitoring.

BACKGROUND: Outcomes of catheter ablation for persistent atrial fibrillation (PeAF) are suboptimal. The convergent procedure (CP) may offer improved efficacy by combining endocardial and epicardial ablation. METHODS: We reviewed 113 consecutive patients undergoing the CP at our institution. The cohort was divided into two groups based on the presence (n = 92) or absence (n = 21) of continuous rhythm monitoring (CM) following the CP. Outcomes were reported in two ways. First, using a conventional definition of any atrial fibrillation/atrial tachycardia (AF/AT) recurrence lasting >30 seconds, after a 90 day blanking period. Second, by determining AF/AT burden at relevant time points in the group with CM. RESULTS: Across the entire cohort, 88% had either persistent or long-standing persistent AF, mean duration of AF diagnosis before the CP was 5.1 ± 4.6 years, 45% had undergone at least one prior AF ablation, 31% had impaired left ventricle ejection fraction and 62% met criteria for moderate or severe left atrial enlargement. Mean duration of follow-up after the CP was 501 ± 355 days. In the entire cohort, survival free from any AF/AT episode >30 seconds at 12 months after the blanking period was 53%. However, among those in the CM group who experienced recurrences, mean burden of AF/AT was generally very low (<5%) and remained stable over the duration of follow-up. Ten patients (9%) required elective cardioversion outside the 90 day blanking period, 11 patients (9.7%) underwent repeat ablation at a mean of 229 ± 178 days post-CP and 64% were off AADs at the last follow-up. Procedural complications decreased significantly following the transition from transdiaphragmatic to sub-xiphoid surgical access: 23% versus 3.8% (P = .005) CONCLUSIONS: In a large, consecutive series of patients with predominantly PeAF, the CP was capable of reducing AF burden to very low levels (generally <5%), which appeared durable over time. Complication rates associated with the CP decreased significantly with the transition from transdiaphragmatic to sub-xiphoid surgical access. Future trials will be necessary to determine which patients are most likely to benefit from the convergent approach.

Characteristics and distribution of obesity in the Arab-American population of southeastern Michigan.

BACKGROUND: Arab-Americans constitute ~ 5% of Michigan's population. Estimates of obesity in Arab-Americans are not up-to-date. We aim to describe the distribution of and factors associated with obesity in an Arab-American population in Southeastern Michigan (SE MI). METHODS: Retrospective medical record review identified n = 2363 Arab-American patients seeking care at an Arab-American serving clinic in SE MI, located in a city which is home to a large proportion of Arab-Americans in the United States (US). Body mass index (BMI) was the primary outcome of interest. Distribution of BMI was described using percentages, and logistic regression models were constructed to examine the association between obesity, other comorbid conditions and health behaviors. This cohort was compared to Michigan's Behavioral Risk Factor Surveillance System (BRFSS) data from 2018 (n = 9589) and to a cohort seeking care between 2013 and 2019 from a free clinic (FC) located in another city in SE MI (n = 1033). RESULTS: Of the 2363 Arab-American patients, those who were older or with HTN, DM or HLD had a higher prevalence of obesity than patients who were younger or without these comorbidities (all p-value < 0.001). Patients with HTN were 3 times as likely to be obese than those without HTN (95% CI: 2.41-3.93; p < 0.001). Similarly, the odds of being obese were 2.5 times higher if the patient was diabetic (95% CI: 1.92-3.16; p < 0.001) and 2.2 times higher if the patient had HLD (95% CI: 1.75-2.83; p < 0.001). There was no significant difference in obesity rates between Arab-Americans (31%) and the BRFSS population (32.6%). Compared to Arab-Americans, patients seen at the FC had a higher obesity rate (52.6%; p < 0.001) as well as significantly higher rates of HTN, DM and HLD (all p < 0.001). CONCLUSION: Overall obesity rates in Arab-Americans were comparable to the population-based BRFSS rates, and lower than the patients seen at the FC. Further studies are required to understand the impact of obesity and the association of comorbidities in Arab-Americans.

Coalition for medical education-A call to action: A proposition to adapt clinical medical education to meet the needs of students and other healthcare learners during COVID-19.

With the ongoing coronavirus, journals and the media have extensively covered the impacts on doctors, nurses, physician assistants, and other healthcare workers. However, one group that has rarely been mentioned despite being significantly impacted is medical students and medical education overall. This piece, prepared by both a medical student and a cardiothoracic surgeon with a long career in academic medicine, discusses the recent history of medical education and how it has led to issues now with distance-based learning due to COVID-19. It concludes with a call to action for the medical education system to adapt so it can meet the needs of healthcare learners during COVID-19 and even beyond.

Response to COVID-19 pandemic: Beyond medical education in Brazil.

We received a response to our Editorial from a group in Brazil that raised valuable concerns about the struggles in transforming medical education in low-income countries. Here, we address the concerns they raised that reinforce the global need for a "Coalition for Medical Education."

Effects and outcomes of cardiac surgery in patients with cardiometabolic syndrome.

INTRODUCTION: Cardiometabolic syndrome (CMS) is diabetes mellitus (or insulin resistance) plus any two of the following risk factors: hypertension, obesity, and hyperlipidemia. The correlation of metabolic syndrome with cardiovascular disease and the increase in the prevalence of patients with risk factors have solidified the importance of continued focus on metabolic syndrome. We retrospectively evaluated single-center data to determine if there is an association between CMS and outcomes. METHODS: The local Society of Thoracic Surgeons Adult Cardiac Database was queried for consecutive coronary bypass (CABG) cases from 2002 to 2010. Short and long-term outcomes were compared between groups of patients with CMS and then risk-adjusted using multiple regression models with adjusted odds ratios and hazard ratios. RESULTS: Of 11 021 CABG cases, 3881 (35.2%) had CMS, with an annual prevalence that increased from 32% to 40% during the study. Patients with CMS were more likely to have prior cerebrovascular diseases, strokes, renal insufficiency, and worse New York Heart Association status. Unadjusted postoperative comparisons revealed that patients with CMS had higher rates of stroke, renal failure, dialysis, deep sternal wound infection, and longer intensive care unit and hospital length of stay. Risk-adjusted odds ratios did not reveal a significant impact on short-term outcomes, however, adjusted hazard ratios continued to demonstrate significant decreases in long-term survival in patients with CMS. CONCLUSIONS: Patients with CMS were more likely to present with increased comorbidities. Patients with CMS undergoing CABG were at risk for worse short-term secondary postoperative outcomes and reduced long-term survival. The data supports the need for further investigation for risk reduction surrounding operative revascularization.

Vacuum-assisted extraction of ilio-caval and right heart masses: A 5-year single center experience.

PURPOSE: Despite paucity of data, there exists growing popularity of catheter-based extraction methods for intravascular thrombi and vegetations. We describe a large single center experience with vacuum-assisted extraction techniques (VAET) for right-sided intravascular and cardiac masses. METHODS: We retrospectively reviewed the perioperative course of patients undergoing VAET between 2014 and 2019. Primary outcomes were survival and freedom from recurrent bacteremia. Procedural success was a composite definition of survival, majority of mass extraction, absence of recurrent bacteremia, and valve function not requiring further intervention during index hospitalization. RESULTS: Of the entire cohort (n = 58), 48% and 52% underwent VAET for vegetations and sterile thrombi, respectively. Of those with positive cultures, the most common organism isolated was Staphylococcus aureus (48%). Preoperative active bacteremia was present in 36% (21/58) and of these patients, 76% (16/21) had neither recurrent nor persistent bacteremia post-op. The majority of masses (67%, 38/58) were debulked with an average reduction in size of 42%. Conversion to open surgery occurred in 3.5% (2/58). Intraoperative and 30-day survival were 98% (57/58) and 90% (28/31), respectively. Overall success was 86% (50/58). The prevalence of moderate/severe tricuspid regurgitation was 37% pre-op and 61% post-op. Average length of intensive care unit and overall hospital stay was 5.6 and 16 days, respectively. CONCLUSIONS: In this single center experience, VAET was conducted safely with a high degree of success and freedom from short-term recurrent bacteremia. This minimally invasive procedure is an attractive alternative to traditional open techniques for removal of right-sided intravascular and cardiac masses.

Outcomes of percutaneous vacuum-assisted debulking of large vegetations as an adjunct to lead extraction.

BACKGROUND: Consensus statements on lead extraction give consideration to open surgical removal in the setting of large vegetations, to mitigate the risk of massive embolism that may occur with percutaneous lead removal. Vacuum-assisted debulking (VD) of large vegetations as an adjunct to percutaneous lead extraction may provide an opportunity to mitigate these risks. METHODS: We retrospectively identified all patients undergoing lead extraction at our institution for endovascular infection from 2012 to 2018 and stratified them into two groups based on presence of adjunctive VD (n = 6) or without VD (no-VD, n = 39). VD was performed with the AngioVac system (Angio-Dynamics, Latham, NY, USA). RESULTS: Across the cohort, mean age was 62 ± 15 years, ejection fraction was 41 ± 16%, and 39% had end-stage renal disease on dialysis. Defibrillator systems were present in 71%, and 22% had cardiac resynchronization devices. Mean duration of the oldest extracted lead was 6.3 ± 4.9 years. There were no significant differences in baseline covariates between groups. Those in the VD group were significantly less likely to have Staphylococcus aureus as a causative organism (P = .04). In the VD group, vegetations targeted for debulking ranged in size from 1.8 to 6 cm (longest dimension). There were no operative deaths or clinically evident embolic events in either group. The overall nonfatal complication rate in the VD group was higher (33.3% vs 2.3%, P = .043). CONCLUSION: VD can be performed as an adjunct to percutaneous lead extraction with a reasonable safety profile. The relative safety and efficacy of this approach removal requires further study.

Biventricular Mural Endocarditis on the Intraventricular Septum.

Mural endocarditis is an inflammation and disruption of the nonvalvular endocardial surface of the cardiac chambers. We present a rare case of mural endocarditis on the intraventricular (IV) septum on both the left and right ventricular side with intact valvular annulus. This case highlights the complexity of the operative and postoperative management in an unprecedented case of biventricular mural endocarditis.

Real-world outcomes of hemostatic matrices in cardiac surgery.

OBJECTIVE: While hemostatic matrices are efficacious in achieving hemostasis, outcomes research is limited; therefore, this study analyzed clinical outcomes of flowable hemostatic matrices in a real-world cardiac surgical population. DESIGN: Retrospective database analysis of cardiac surgical cases from 2006 to 2012. SETTING: Data were extracted from Premier's United States (US) Perspective Database, developed for quality and utilization benchmarking and containing approximately 25% of US hospital discharges. PARTICIPANTS: Coronary artery bypass grafting (CABG), aortic, valve, or valvular with CABG surgery cases in which FLOSEAL or SURGIFLO was included. INTERVENTIONS: Three study groups were formed, given usage of hemostatic matrices: (1) FLOSEAL or SURGIFLO, exclusively; (2) FLOSEAL or SURGIFLO, with fibrin sealants, sealants, or powder hemostats; and (3) FLOSEAL or SURGIFLO, with nonflowable hemostats with or without thrombin. Outcomes included complications, transfusions, surgical revisions, mortality, length of stay (LOS) and surgery time. MEASUREMENTS AND MAIN RESULTS: Group A included 4,480 FLOSEAL and 326 SURGIFLO cases. Results suggested SURGIFLO cases were associated with significantly higher risk of multiple adverse outcomes, including major (odds Ratio [OR] 2.12; 95% CI 1.34-3.35; p = 0.001) and minor complications (OR 1.84; 95% CI 1.33-2.55; p<0.001); surgical revisions (OR 2.01; 95% CI 1.03- 3.94; p = 0.042); transfusions for any blood products (OR 4.90; 95% CI 3.50-6.87; p<0.001); and longer surgery times (adjusted mean difference = 64 minutes, p<0.001) than the FLOSEAL group. There were no significant differences in mortality and LOS. Results were similar in groups B and C. CONCLUSIONS: These retrospective outcomes suggested FLOSEAL was associated with fewer negative consequences than SURGIFLO in this surgical population.

Long-term survival for patients with metabolic syndrome after bioprosthetic or mechanical valve replacement.

BACKGROUND: Metabolic diseases are thought to negatively impact the long-term survival of cardiac patients and have been shown to be associated with reduced durability of bioprosthetic heart valves. The purpose of this study is to determine whether long-term survival of post-valve replacement patients is affected by the presence of metabolic disease, and whether choice of tissue versus mechanical prosthesis impacts survival. METHODS: A retrospective review was conducted of all isolated valve replacements performed between 2002 and 2011 from the STS adult cardiac database of Emory Healthcare Hospitals. A total of 1,222 cases were reviewed, of which 909 patients had AVR (661 tissue, 248 mechanical), and 313 MVR (190 tissue, 123 mechanical). Cardiometabolic syndrome (CMS), in accordance with the World Health Organization (WHO) definition, was present in 242 of 1,222 (19.8%) cases in entire cohort, 203 of 909 (22.3%) in AVR, and 39 of 313 (12.5%) in MVR. Cox proportional hazard regression analysis was used to calculate long-term survival after adjusting for propensity score (PS), Society of Thoracic Surgeons Predicted Risk of Mortality (STS PROM), and direct covariates for valve and implant type and stratifying by CMS. RESULTS: In PS adjusted AVR, patients with CMS risk factors had worse survival compared to metabolic risk-free patients (AHR = 3.47), as was the case for MVR (AHR = 4.06). Tissue MVR patients with CMS had higher hazard of death compared to patients with no diabetes and no metabolic risk factors after adjusting for PROM (AHR = 3.33) and direct covariates (AHR = 3.91). CONCLUSIONS: Metabolic diseases negatively impact long-term survival of aortic and mitral valve replacement (MVR) patients. Tissue prostheses are associated with worse long-term survival following MVR.