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Robotic-assisted coronary bypass is an attractive option in the management of patients with isolated left anterior descending artery (LAD) disease or multi-vessel coronary disease providing the benefits of the left internal mammary artery (LIMA) to the LAD graft while avoiding the morbidity of a sternotomy. Although the learning curve is significant, both cardiothoracic surgery trainees as well as experienced coronary surgeons can learn this technique. As the prevalence of patients requiring these procedures increases, we must be prepared to respond by increasing our training of robotic coronary surgeons.
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The purpose of this manuscript is to provide recommendations for cardiac surgeons interested in adopting a robotic platform into their programs. The recommendations are based on the experience of the authors and cover a diverse array of cardiac surgical procedures that are currently being performed with robotic assistance. The focus, as with any innovative surgical approach, is to ensure patient safety, maximize quality and efficacy, and to set realistic expectations about what is required to achieve proficiency in robotic cardiac surgery.
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BACKGROUND: Tricuspid valve annuloplasty (TA) during mitral valve repair (MVr) is associated with increased risk of permanent pacemaker (PPM) implantation, but the magnitude of risk and long-term clinical consequences have not been firmly established. OBJECTIVES: This study assesses the incidence rates of PPM implantation after isolated MVr and following MVr with TA as well as the associated long-term clinical consequences of PPM implantation. METHODS: State-mandated hospital discharge databases of New York and California were queried for patients undergoing MVr (isolated or with concomitant TA) between 2004 and 2019. Patients were stratified by whether or not they received a PPM within 90 days of index surgery. After weighting by propensity score, survival, heart failure hospitalizations (HFHs), endocarditis, stroke, and reoperation were compared between patients with or without PPM. RESULTS: A total of 32,736 patients underwent isolated MVr (n = 28,003) or MVr + TA (n = 4,733). Annual MVr + TA volumes increased throughout the study period (P < 0.001, trend), and PPM rates decreased (P < 0.001, trend). The incidence of PPM implantation <90 days after surgery was 7.7% for MVr and 14.0% for MVr + TA. In 90-day conditional landmark-weighted analyses, PPMs were associated with reduced long-term survival among MVr (HR: 1.96; 95% CI: 1.75-2.19; P < 0.001) and MVr + TA recipients (HR: 1.65; 95% CI: 1.28-2.14; P < 0.001). In both surgical groups, PPMs were also associated with an increased risk of HFH (HR: 1.56; 95% CI: 1.27-1.90; P < 0.001) and endocarditis (HR: 1.95; 95% CI: 1.52-2.51; P < 0.001), but not with stroke or reoperation. CONCLUSIONS: Compared to isolated MVr, adding TA to MVr was associated with a higher risk of 90-day PPM implantation. In both surgical groups, PPM implantation was associated with an increase in mortality, HFH, and endocarditis.
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Marcapaso Artificial , Válvula Tricúspide , Humanos , Femenino , Masculino , Anciano , Marcapaso Artificial/efectos adversos , Válvula Tricúspide/cirugía , Persona de Mediana Edad , Válvula Mitral/cirugía , Estudios Retrospectivos , Anuloplastia de la Válvula Cardíaca/efectos adversos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Resultado del TratamientoRESUMEN
Background: CONVERGE was a prospective, multicenter, randomized controlled trial that evaluated the safety of Hybrid Atrial Fibrillation Convergent (HC) and compared its effectiveness to endocardial catheter ablation (CA) for the treatment of persistent atrial fibrillation (PersAF) and longstanding PersAF (LSPAF). In 2020, we reported that CONVERGE met its primary safety and effectiveness endpoints. The primary objective of the present study is to report CONVERGE trial results for quality of life (QOL) and Class I/III anti-arrhythmic drug (AAD) utilization following HC. Methods: Eligible patients had drug-refractory symptomatic PersAF or LSPAF and a left atrium diameter ≤6.0 cm. Enrolled patients were randomized 2:1 to receive HC or CA. Atrial Fibrillation Severity Scale (AFSS) and the 36-Item Short Form Health Survey (SF-36) were assessed at baseline and 12 months; statistical comparison was performed using paired t-tests. AAD utilization at baseline through 12 and 18 months post-procedure was evaluated; statistical comparison was performed using McNemar's tests. Results: A total of 153 patients were treated with either HC (n=102) or CA (n=51). Of the 102 HC patients, 38 had LSPAF. AFSS and SF-36 Mental and Physical Component scores were significantly improved at 12 months versus baseline with HC overall and for the subset of LSPAF patients treated with either HC or CA. The proportion of HC patients (n=102) who used Class I /III AADs at 12 and 18 months was significantly less (33.3% and 36.3%, respectively) than baseline (84.3%; P<0.001). In LSPAF patients who underwent HC (n=38), AADs use was 29.0% through 18 months follow-up versus 71.1% at baseline (P<0.001). Conclusions: HC reduced AF symptoms, significantly improved QOL, and reduced AAD use in patients with PersAF and LSPAF. ClinicalTrialsgov Identifier: NCT01984346.
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OBJECTIVES: Emergency coronary artery bypass grafting (CABG) is often omitted from current research, and volumes as well as outcomes are unknown. The purpose of this research is to examine national trends in emergency CABG. METHODS: The Society of Thoracic Surgeons national adult cardiac surgical database was queried from 2005 to 2017 for patients who underwent emergency and emergency salvage isolated CABG procedures, and 92 607 patients were included for analysis. Generalized linear mixed models were used to assess time trends, taking into account the clustering effect of region. RESULTS: Over the study period, volumes of emergency and emergency salvage CABG declined from 7991 to 6916 cases/year. Emergency and emergency salvage cases accounted for â¼4.9% of all CABG procedures performed nationwide in 2005 and 4.1% in 2017. The predicted risk of mortality (PROM) declined in the entire patient cohort over time from 12% to 8% (P < 0.0001). Rates of important postoperative morbidities also declined including prolonged intubation, re-exploration for haemorrhage and postoperative pneumonia (P < 0.001). Observed-to-expected mortality rates rose over the study period from 0.81 to 1.06 as the overall PROM declined from 9.3% to 7.6%. Emergency salvage CABG rates also declined over the course of the study from 358 to 323 cases/year. The observed-to-expected ratios for mortality increased for emergency salvage CABG during the study from 1.16 to 1.66, and emergency salvage mortality rates averaged 46.5%. CONCLUSIONS: The volume of patients undergoing emergency and emergency salvage CABG in the USA has declined. Increases in mortality are largely driven by emergency salvage cases, and the PROM algorithm may not accurately reflect the risk involved for these patients.
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Procedimientos Quirúrgicos Cardíacos , Puente de Arteria Coronaria , Adulto , Humanos , Puente de Arteria Coronaria/métodos , Análisis por Conglomerados , Bases de Datos Factuales , Estudios Retrospectivos , Resultado del Tratamiento , Complicaciones PosoperatoriasRESUMEN
Background: The advent of transcatheter aortic valve replacement (TAVR) has directly impacted the lifelong management of patients with aortic valve disease. The U.S. Food and Drug Administration has approved TAVR for all surgical risk: prohibitive (2011), high (2012), intermediate (2016), and low (2019). Since then, TAVR volumes are increasing and surgical aortic valve replacements (SAVR) are decreasing. This study sought to evaluate trends in isolated SAVR in the pre- and post-TAVR eras. Methods: From January 2000 to June 2020, 3,861 isolated SAVRs were performed at a single academic quaternary care institution which participated in the early trials of TAVR beginning in 2007. A formal structural heart center was established in 2012 when TAVR became commercially available. Patients were divided into the pre-TAVR era (2000-2011, n = 2,426) and post-TAVR era (2012-2020, n = 1,435). Data from the institutional Society of Thoracic Surgeons National Database was analyzed. Results: The median age was 66 years, similar between groups. The post-TAVR group had a statistically higher rate of diabetes, hypertension, dyslipidemia, heart failure, more reoperative SAVR, and lower STS Predicted Risk of Mortality (PROM) (2.0% vs. 2.5%, p < 0.0001). There were more urgent/emergent/salvage SAVRs (38% vs. 24%) and fewer elective SAVRs (63% vs. 76%), (p < 0.0001) in the post-TAVR group. More bioprosthetic valves were implanted in the post-TAVR group (85% vs. 74%, p < 0.0001). Larger aortic valves were implanted (25 vs. 23â mm, p < 0.0001) and more annular enlargements were performed (5.9% vs. 1.6%, p < 0.0001) in the post-TAVR era. Postoperatively, the post-TAVR group had less blood product transfusion (49% vs. 58%, p < 0.0001), renal failure (1.4% vs. 4.3%, p < 0.0001), pneumonia (2.3% vs. 3.8%, p = 0.01), shorter lengths of stay, and lower in-hospital mortality (1.5% vs. 3.3%, p = 0.0007). Conclusion: The approval of TAVR changed the landscape of aortic valve disease management. At a quaternary academic cardiac surgery center with a well-established structural heart program, patients undergoing isolated SAVR in the post-TAVR era had lower STS PROM, more implantation of bioprosthetic valves, utilization of larger valves, annular enlargement, and lower in-hospital mortality. Isolated SAVR continues to be performed in the TAVR era with excellent outcomes. SAVR remains an essential tool in the lifetime management of aortic valve disease.
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OBJECTIVE: Many robotic mitral surgeons utilize right thoracotomy with transthoracic clamping of the aorta, while a smaller number employ a port-only endoscopic approach with endoaortic balloon occlusion of the aorta. We present our technique for a port-only endoscopic robotic approach with transthoracic clamping. METHODS: From July 2019 through December 2022, 133 patients underwent port-only endoscopic robotic mitral surgery with transthoracic clamp aortic occlusion and antegrade cardioplegia. Perfusion was through the femoral artery in 101 patients (76%) and axillary in 32 patients (24%). Clamp technique involved placing the clamp at the mid-ascending aorta, dynamic valve testing to 90 mm aortic root pressure, and closure of the cardioplegia cannula site prior to clamp removal. Indications for clamp utilization over balloon occlusion included both balloon supply issues and aortoiliac anatomy. RESULTS: Mitral repair was performed in 122 patients (92.7%) and mitral valve replacement in 11 patients (8.3%). Mean aortic occlusion time was 92 ± 21.4 min. Mean time from left atrial closure to clamp removal was 8.7 (7.2 to 12.8) min. There were no injuries to the aorta or surrounding structures, mortality, strokes, or renal failure. CONCLUSIONS: For robotic teams with endoaortic balloon capability, this technique may be useful in certain patients with aorto-iliac pathology or limited femoral artery access. Alternatively, robotic teams who employ transthoracic aortic clamping through a thoracotomy may find this technique useful to transition to a port-only endoscopic approach.
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Enfermedades de la Aorta , Procedimientos Quirúrgicos Cardíacos , Procedimientos Quirúrgicos Robotizados , Robótica , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Endoscopía , Aorta/cirugía , Procedimientos Quirúrgicos Cardíacos/métodos , Procedimientos Quirúrgicos Mínimamente InvasivosRESUMEN
Background: Favorable clinical outcomes are difficult to achieve in long-standing persistent atrial fibrillation (LSPAF) with catheter ablation (CA). The CONVERGE (Convergence of Epicardial and Endocardial Ablation for the Treatment of Symptomatic Persistent Atrial FIbrillation) trial evaluated the effectiveness of hybrid convergent (HC) ablation vs endocardial CA. Objective: The study sought to evaluate the safety and effectiveness of HC vs CA in the LSPAF subgroup from the CONVERGE trial. Methods: The CONVERGE trial was a prospective, multicenter, randomized trial that enrolled 153 patients at 27 sites. A post hoc analysis was performed on LSPAF patients. The primary effectiveness was freedom from atrial arrhythmias off new or increased dose of previously failed or intolerant antiarrhythmic drugs (AADs) through 12 months. The primary safety endpoint was major adverse event incidence through 30 days with HC. Key secondary effectiveness measures included (1) percent of patients achieving ≥90% AF burden reduction vs baseline and (2) AF freedom. Results: Sixty-five patients (42.5% of total enrollment) had LSPAF; 38 in HC and 27 in CA. Primary effectiveness was 65.8% (95% confidence interval [CI] 50.7%-80.9%) with HC vs 37.0% (95% CI 5.1%-52.4%) with CA (P = .022). Through 18 months, these rates were 60.5% (95% CI 50.0%-76.1%) with HC vs 25.9% (95% CI 9.4%-42.5%) with CA (P = .006). Secondary effectiveness rates were higher than CA with HC at 12 and 18 months. Freedom from atrial arrhythmias off AADs was 52.6% (95% CI 36.8%-68.5%) and 47.4% (95% CI 31.5%-63.2%) with HC at 12 and 18 months vs 25.9% (95% CI 9.4%-42.5%) and 22.2% (95% CI 6.5%-37.9%) with CA, respectively (12 months: P = .031; 18 months: P = .038). Three (7.9%) major adverse events occurred within 30 days of HC. Conclusion: Post hoc analysis demonstrated effectiveness and acceptable safety of HC compared with CA in LSPAF.
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BACKGROUND: Previous studies have evaluated the learning curve to achieve competency in robotic-assisted coronary artery bypass grafting (CABG) but have not identified thresholds for mastery. Robotic-assisted CABG is a minimally invasive alternative to sternotomy CABG. The purpose of this study was to evaluate the short- and long-term outcomes of this procedure and to estimate the threshold for achieving mastery. METHODS: From 2009 to 2020, 1000 robotic-assisted CABG procedures were performed at a single institution. Robotic left internal mammary artery (LIMA) harvest followed by off-pump, LIMA-left anterior descending artery grafting using a 4-cm thoracotomy was performed. Short-term outcomes were obtained from The Society of Thoracic Surgeons database, and long-term follow-up was obtained by telephone questionnaires from dedicated research nurses for all patients more than 1 year from surgery. RESULTS: Mean patient age was 64 ± 11 years, Society of Thoracic Surgeons predicted risk of mortality was 1.1% ± 1.5%, and 76% (758) of patients were men. Thirty-day mortality occurred in 6 patients (0.6%; observed-to-expected ratio, 0.53), 5 patients (0.5%) experienced a postoperative stroke, and postoperative LIMA patency was 97.2% (491/505). Mean procedure time decreased from 195 minutes to 176 minutes, and conversion to sternotomy decreased from 4.4% (22/500) to 1.6% (8/500) after 500 cases. Short-term outcomes suggested expertise was reached between 250 and 500 cases. Long-term follow-up was completed in 97% of patients (873/896) with a median follow-up of 3.9 years (interquartile range, 1.8-5.8), and the overall survival rate was 89% (777). CONCLUSIONS: Robotic-assisted CABG can be performed safely with excellent results even during a surgeon's early experience. However the learning curve to achieve mastery is longer than required to achieve competency, with a threshold of approximately 250 to 500 cases.
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Enfermedad de la Arteria Coronaria , Procedimientos Quirúrgicos Robotizados , Robótica , Masculino , Humanos , Persona de Mediana Edad , Anciano , Femenino , Enfermedad de la Arteria Coronaria/cirugía , Curva de Aprendizaje , Puente de Arteria Coronaria/métodos , Robótica/métodos , Resultado del Tratamiento , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Estudios RetrospectivosRESUMEN
INTRODUCTION: Rheumatic heart disease is considered well-controlled in high-income countries; however, its actual trends in mortality remain unclarified. We analyzed trends in mortality from rheumatic heart disease in association with age, period, and birth cohort. METHODS: We analyzed the WHO mortality database to determine trends in mortality from rheumatic heart disease in the UK, Germany, France, Italy, Japan, Australia, USA, and Canada from 2000 to 2020. We used age-cohort-period modeling to estimate cohort and period effects. Net drift (overall annual percentage change), local drift (annual percentage change in each age group) and heterogeneity were calculated. RESULTS: In the most recent year, crude mortality rates and age-standardized mortality rates ranged from 1.10 in the USA to 6.17 in Germany, and 0.32 (95% CI 0.31-0.34) in Japan and 1.70 (95% CI 1.65-1.75) in Germany, respectively. During the observation period, while Germany had a constant trend in overall annual percentage change, all the other countries had significant decreasing trends (p < 0.0001, respectively). Annual percent change was not homogeneous across each group in all 8 countries (pheterogeneity < 0.0001), with 2 peaks in the younger and older age categories. In Germany, Italy, Australia, and Canada, we found increasing mortality rates among older patients. Improving period and cohort risks for rheumatic heart disease mortality were generally observed, excluding Germany where the period effect was worsening and the cohort effect was constant. CONCLUSIONS: Mortality trends from rheumatic heart disease were decreasing in the study high-income countries except for Germany where higher mortality and two peaks in annual percentage change in younger and older age groups warrant further investigation.
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Cardiopatía Reumática , Humanos , Anciano , Cardiopatía Reumática/epidemiología , Países Desarrollados , Estudios de Cohortes , Alemania/epidemiología , ItaliaRESUMEN
OBJECTIVE: A number of publicly available rating algorithms are used to assess hospital performance in coronary artery bypass grafting (CABG). However, concerns remain that these algorithms fail to correlate with each other and inadequately capture the case complexity of individual center practices. METHODS: Composite star ratings for isolated CABG from the Society of Thoracic Surgeons public reporting database were extracted for 2018-2019. U.S. News & World Report Best Hospitals was used to extract CABG ratings as well as overall cardiology and heart surgery ranking, and the Centers for Medicare & Medicaid Services Hospital Compare was used to extract CABG volume and 30-day mortality. Spearman correlation coefficients were used to assess possible relationships. Expert opinion on risk adjustment and program evaluation was incorporated. RESULTS: Correlations between Society of Thoracic Surgeons star rating and U.S. News & World Report overall ranking in cardiology and heart surgery (r = 0.15) and Centers for Medicare & Medicaid Services 30-day mortality (r = -0.27) were poor. Society of Thoracic Surgeons star rating correlated weakly with U.S. News & World Report CABG ratings (r = 0.33) and with Centers for Medicare & Medicaid Services CABG volume (r = 0.32), whereas the latter 2 correlated moderately (r = 0.52) with each other. Of the 75 centers with accredited cardiac surgery training programs, 13 (17%) did not participate in Society of Thoracic Surgeons public reporting. Important gaps were identified in risk assessment, and potential solutions are proposed. CONCLUSIONS: Correlations between current CABG public reporting systems are weak. Further work is needed to refine and standardize CABG rating systems to more adequately capture the scope and complexity of an individual center's clinical practice and to better inform patients.
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Procedimientos Quirúrgicos Cardíacos , Medicare , Humanos , Anciano , Estados Unidos , Puente de Arteria Coronaria/efectos adversos , Hospitales , Ajuste de RiesgoRESUMEN
BACKGROUND: Fast-track and enhanced recovery after cardiac surgical procedures have shown reductions in intensive care unit (ICU) and hospital lengths of stay, with unchanged outcomes. However, cost reduction by an ultra-fast-track protocol after minimally invasive cardiac operations, without compromising clinical benefits, has yet to be demonstrated. METHODS: A total of 215 consecutive patients underwent robotic-assisted coronary artery bypass grafting, with 156 preoperatively stratified into conventional ICU recovery vs 59 candidates for a defined ICU-bypass protocol involving recovery room and floor care. Of these, 40 candidates completed the protocol, and 19 had conversion-to-ICU recovery. Because of right-skewed distribution, inpatient cost was log-transformed, and linear regression models were constructed to estimate geometric mean ratios (GMRs) comparing inpatient cost for these groups (conventional ICU recovery, ICU-bypass, conversion-to-ICU recovery), adjusted for The Society of Thoracic Surgeons Predicted Risk of Mortality score. RESULTS: Compared with the conventional ICU group, the ICU-bypass group conferred a 15% reduction in total inpatient (GMR, 0.85; P = .0007) and a 14% reduction in total variable direct costs (GMR, 0.86; P = .003). Compared with the conventional ICU group, the ICU-bypass and conversion-to-ICU groups had similar net hospital stay reductions (1.6-1.7 days). Relative to the conventional ICU group, ICU and floor duration were shortened after conversion to ICU, with a trend to reduced costs. Cardiac arrest, 30-day mortality, and stroke were absent, and other key adverse events did not differ between groups. CONCLUSIONS: A selective, successful ultra-fast-track ICU-bypass protocol for robotic-assisted coronary artery bypass grafting reduces inpatient cost without affecting short-term outcomes. Conversion-to-ICU recovery also maintains outcomes and trends toward reduced costs.
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Enfermedad de la Arteria Coronaria , Procedimientos Quirúrgicos Robotizados , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento , Complicaciones Posoperatorias/etiología , Puente de Arteria Coronaria/métodos , Unidades de Cuidados Intensivos , Tiempo de InternaciónRESUMEN
Objective: Mitral surgery is higher risk in patients with a previous median sternotomy. We describe an endoscopic robotic approach in this higher-risk cohort by an experienced robotic team. Methods: From January 2006 through June 2021, 152 consecutive patients with previous sternotomy cardiac surgery underwent mitral surgery using endoscopic robotics. Peripheral perfusion with endoaortic balloon occlusion was used in 148 patients (97.4%) and ventricular fibrillation in 4 patients (2.6%). Results: Mitral repair was performed in 73 patients (48%) including primary repair in 57 patients and re-repair in 16 patients, mitral replacement in 78 patients (51.3%) including primary replacement in 26 patients, conversion of a previous repair to replacement in 28 patients, and re-replacement in 24 patients. A paravalvular leak was primarily repaired in 1 patient (0.7%). Concomitant procedures included tricuspid repair in 28 patients (18.4%) and cryoablation in 8 patients (5.3%). Postoperative echocardiography in the mitral repair patients demonstrated none to mild regurgitation in 72 patients (98.6%). One repair patient (1.4%) had severe regurgitation and required robotic mitral replacement 5 days postoperatively. There were no paravalvular leaks in the mitral replacement patients. Operative mortality occurred in 3 patients (1.97%). Stroke occurred in 1 patient (0.7%), prolonged ventilation in 18 patients (11.8%), renal failure in 2 patients (1.4%), and re-exploration for bleeding in 10 patients (6.6%). Mean length of stay for the entire cohort was 5 ± 5.4 days. Conclusions: Robotic mitral valve surgery can be extended to patients with previous sternotomy with satisfactory efficacy and low operative mortality and morbidity.
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Procedimientos Quirúrgicos Cardíacos , Insuficiencia de la Válvula Mitral , Procedimientos Quirúrgicos Cardíacos/métodos , Humanos , Válvula Mitral/cirugía , Insuficiencia de la Válvula Mitral/cirugía , Estudios Retrospectivos , Esternotomía/efectos adversosRESUMEN
The tricuspid valve is an often forgotten but relevant cause of significant morbidity and mortality. Serious consideration should be given to addressing the valve in patients undergoing left-sided valve surgery who have functional TR, or an enlarged annulus. Tricuspid repair with a ring annuloplasty has shown improved long-term survival and freedom from recurrent TR at as long as 15 years of follow-up compared to suture annuloplasty or other repairs where a prosthetic ring is not used.
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Anuloplastia de la Válvula Cardíaca , Implantación de Prótesis de Válvulas Cardíacas , Insuficiencia de la Válvula Tricúspide , Humanos , Resultado del Tratamiento , Válvula Tricúspide/diagnóstico por imagen , Válvula Tricúspide/cirugía , Insuficiencia de la Válvula Tricúspide/cirugíaRESUMEN
Recent advances have been made in AF treatment, including the role of early rhythm control and landmark clinical trials using ablation therapy. However, some treatment gaps remain, including the creation of durable lesions outside the pulmonary veins and effective treatment of longstanding persistent AF. A novel epicardial-endocardial ablation approach - the hybrid convergent procedure - was developed to combine surgical and catheter ablation techniques into a collaborative, multidisciplinary approach to managing AF. In this review, the authors discuss recently published data on hybrid convergent ablation, including results of the CONVERGE clinical trial, in the context of current challenges to treatment of persistent and long-standing persistent AF. The review also aims to provide perspective on outstanding questions and future directions in this area.
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A 54-year-old woman with end-stage renal disease on hemodialysis with access through a right arm arteriovenous fistula presented with right arm swelling. Venography demonstrated right subclavian vein stenosis. A balloon angioplasty of the stenotic vein was unsuccessful, and she subsequently underwent stent placement with balloon angioplasty. Ten days following the procedure, she developed acute shortness of breath. Transthoracic echocardiogram demonstrated the migration of the venous stent into the right ventricle. Using an endoscopic robotic approach, the stent was successfully extracted from the beating heart.