Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 28
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Transfusion ; 57(10): 2483-2489, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28714229

RESUMO

BACKGROUND: Blood transfusions are a common and costly intervention for cardiac surgery patients. Evidence suggests that a more restrictive transfusion strategy may reduce costs and transfusion-related complications without increasing perioperative morbidity and mortality. STUDY DESIGN AND METHODS: A transfusion-limiting protocol was developed and implemented in a cardiovascular surgery unit. Over a 5-year period, data were collected on patient characteristics, procedures, utilization of blood products, morbidity, and mortality, and these were compared before and after the protocol was implemented. RESULTS: After the protocol was put in place, fewer patients required transfusions (38.2% vs. 45.5%, p = 0.004), with the greatest reduction observed in postoperative blood use (29.1% vs. 37.2%, p = 0.001). In-hospital morbidity and mortality did not increase. When patients who received transfusions were stratified by procedure, the protocol was most effective in reducing transfusions for patients undergoing isolated coronary artery bypass grafting (CABG; 4.09 units vs. 2.51 units, p = 0.009) and CABG plus valve surgery (10.32 units vs. 4.77 units, p = 0.014). A small group of patients were disproportionate recipients of transfusions, with approximately 6% of all patients receiving approximately half of the blood products. CONCLUSION: A protocol to limit transfusions decreased the proportion of cardiothoracic surgery patients who received blood products. A very small group of patients received a large number of transfusions, and within that group the observed mortality was significantly higher than in the general patient population. Current protocols cannot possibly account for these patients, and this should be considered when analyzing the performance of protocols designed to reduce unnecessary transfusions.


Assuntos
Transfusão de Sangue/estatística & dados numéricos , Procedimentos Cirúrgicos Cardíacos/economia , Protocolos Clínicos , Transfusão de Sangue/economia , Comorbidade , Ponte de Artéria Coronária , Mortalidade Hospitalar , Humanos , Cuidados Pós-Operatórios/métodos
2.
J Surg Res ; 197(2): 265-9, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25963164

RESUMO

BACKGROUND: Ascending aortic dissections (AADs) require prompt diagnosis and surgical treatment. We present the results of implementing a multidisciplinary aortic dissection protocol on the outcomes of AAD treatment at a nonteaching hospital. METHODS: From January 2002-December 2013, 54 patients with the diagnosis of AAD were treated at our institution. Thirty-seven (68.5%) were male with a mean age of 62.3 y. Cardiogenic shock was present in 25.9% of patients. An AAD protocol, focused on educating physicians on presenting signs and symptoms, adequate triaging, and the need for immediate surgical intervention, was implemented, alongside the standardization of surgical treatment. We divided the cohort into two eras, based on AAD program's implementation in 2006, to better assess the impact of this protocol. RESULTS: Patients from the early era had significantly longer time from Emergency Department to the operating room, more postoperative occurrence of prolonged ventilation, and a longer postoperative hospital stay at 8.7 ± 8 versus 3.1 ± 2.6 h (P = 0.002), 63% versus 18% (P = 0.002), and 63% versus 18% (P = 0.002), respectively. The overall mortality for the cohort was 9.3%, decreasing from 12.5% before 2006 to 7.9% after 2006. CONCLUSIONS: The implementation of a multidisciplinary aortic dissection protocol has resulted in faster diagnosis and transport of AAD cases from the emergency room to the operating room, improving outcomes. Our data support the concept that nonteaching institutions can deliver excellent care to patients with acute aortic emergencies.


Assuntos
Algoritmos , Aneurisma Aórtico , Dissecção Aórtica , Técnicas de Apoio para a Decisão , Procedimentos Cirúrgicos Vasculares , Adulto , Idoso , Idoso de 80 Anos ou mais , Dissecção Aórtica/diagnóstico , Dissecção Aórtica/mortalidade , Dissecção Aórtica/cirurgia , Aneurisma Aórtico/diagnóstico , Aneurisma Aórtico/mortalidade , Aneurisma Aórtico/cirurgia , Protocolos Clínicos , Emergências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
3.
Genomics ; 104(1): 36-44, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24858532

RESUMO

In coronary artery bypass grafting (CABG), the combined use of left and right internal mammary arteries (LIMA and RIMA) - collectively known as bilateral IMAs (BIMAs) provides a survival advantage over the use of LIMA alone. However, gene expression in RIMA has never been compared to that in LIMA. Here we report a genome-wide transcriptional analysis of BIMA to investigate the expression profiles of these conduits in patients undergoing CABG. As expected, in comparing the BIMAs to the aorta, we found differences in pathways and processes associated with atherosclerosis, inflammation, and cell signaling - pathways which provide biological support for the observation that BIMA grafts deliver long-term benefits to the patients and protect against continued atherosclerosis. These data support the widespread use of BIMAs as the preferred conduits in CABG.


Assuntos
Artéria Torácica Interna/metabolismo , Transcriptoma , Idoso , Aorta/metabolismo , Ponte de Artéria Coronária/métodos , Feminino , Perfilação da Expressão Gênica , Genoma Humano , Humanos , Masculino , Pessoa de Meia-Idade , Especificidade de Órgãos
4.
Transfusion ; 54(4): 1106-13, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23909477

RESUMO

BACKGROUND: Studies have found that cardiac surgery patients receiving blood transfusions are at risk for increased mortality during the first year after surgery, but risk appears to decrease after the first year. This study compared 5-year mortality in a propensity-matched cohort of cardiac surgery patients. STUDY DESIGN AND METHODS: Between July 1, 2004, and June 30, 2011, 3516 patients had cardiac surgery with 1920 (54.6%) requiring blood transfusion. Propensity matching based on 22 baseline characteristics yielded two balanced groups (blood transfusion group [BTG] and nontransfused control group [NCG]) of 857 patients (1714 in total). The type and number of blood products were compared in the BTG. RESULTS: Operative mortality was higher in BTG versus NCG (2.3% vs. 0.4%; p < 0.0001). Kaplan-Meier analysis of 5-year survival demonstrated no difference between groups in the first 2 years (BTG 96.3% and 93.0% vs. NCG 96.4% and 93.9%, respectively). There was a significant divergence during Years 3 to 5 (BTG 82.0% vs. NCG 89.3% at 5 years; p < 0.007). Five-year survival was significantly lower in patients who received at least 2 units of blood (79.6% vs. 88.0%; p < 0.0001). In multivariate Cox regression analyses, transfusion was independently associated with increased risk for 5-year mortality. Patients receiving cryoprecipitate products had a twofold mortality risk increase (adjusted hazard ratio, 2.106; p = 0.002). CONCLUSION: Blood transfusion, specifically cryoprecipitates, was independently associated with increased 5-year mortality. Transfusion during cardiac surgery should be limited to patients who are in critical need of blood products.


Assuntos
Transfusão de Sangue/mortalidade , Procedimentos Cirúrgicos Cardíacos/mortalidade , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Humanos , Cuidados Intraoperatórios/métodos , Masculino , Pessoa de Meia-Idade , Mortalidade , Fatores de Risco , Análise de Sobrevida
5.
Rev Cardiovasc Med ; 12 Suppl 1: S40-6, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22080987

RESUMO

Antiplatelet therapy is widely accepted in the contemporary management of patients with coronary syndromes. Effective platelet inhibition can cause an increased risk of bleeding, which is more evident when patients are referred to surgical coronary revascularization. The cardiac surgeon should be familiar with all new antiplatelet drugs. In this article we compile the latest information about antiplatelet therapy and its impact on cardiac surgery.


Assuntos
Ponte de Artéria Coronária/efeitos adversos , Cardiopatias/terapia , Inibidores da Agregação Plaquetária/efeitos adversos , Hemorragia Pós-Operatória/etiologia , Plaquetas/efeitos dos fármacos , Cardiopatias/sangue , Cardiopatias/tratamento farmacológico , Cardiopatias/cirurgia , Humanos , Testes de Função Plaquetária , Hemorragia Pós-Operatória/sangue , Hemorragia Pós-Operatória/prevenção & controle , Valor Preditivo dos Testes , Medição de Risco , Fatores de Risco
6.
Circ Cardiovasc Interv ; 14(1): e009983, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33423540

RESUMO

BACKGROUND: The optimal antithrombotic regimen after transcatheter aortic valve replacement remains unclear. METHODS: In this randomized open-label study, low-risk patients undergoing transfemoral transcatheter aortic valve replacement at 7 centers in the United States were randomized 1:1 to low-dose aspirin or warfarin plus low-dose aspirin for 30 days. Patients who could not be randomized were enrolled in a separate registry. Computed tomography or transesophageal echocardiography was performed at 30 days. The primary effectiveness end point was a composite of the following at 30 days: hypoattenuated leaflet thickening, at least moderately reduced leaflet motion, hemodynamic dysfunction (mean aortic valve gradient ≥20 mm Hg, effective orifice area ≤1.0 cm2, dimensionless valve index <0.35, or moderate or severe aortic regurgitation), stroke, or transient ischemic attack. RESULTS: Between July 2018 and October 2019, 94 patients were randomly assigned, 50 to aspirin and 44 to warfarin plus aspirin, and 30 were enrolled into the registry. In the intention-to-treat analysis of the randomized cohort, the composite primary effectiveness end point was met in 26.5% for aspirin versus 7.0% for warfarin plus aspirin (P=0.014; odds ratio, 4.8 [95% CI, 1.3-18.3]). The rate of hypoattenuated leaflet thickening was 16.3% for aspirin versus 4.7% for warfarin plus aspirin (P=0.07; odds ratio, 4.0 [95% CI, 0.8-20.0]). There was no excess bleeding at 30 days with anticoagulation. In the as-treated analysis of pooled randomized and registry cohorts, the rate of hypoattenuated leaflet thickening was 16.7% for aspirin versus 3.1% for warfarin plus aspirin (P=0.011; odds ratio, 6.3 [95% CI, 1.3-30.6]). CONCLUSIONS: In low-risk transcatheter aortic valve replacement patients, anticoagulation with warfarin may prevent transcatheter heart valve dysfunction in the short term without excess bleeding. Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT03557242.


Assuntos
Próteses Valvulares Cardíacas , Substituição da Valva Aórtica Transcateter , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Aspirina/efeitos adversos , Humanos , Fatores de Risco , Substituição da Valva Aórtica Transcateter/efeitos adversos , Resultado do Tratamento , Estados Unidos , Varfarina/efeitos adversos
7.
Cardiovasc Revasc Med ; 33: 7-12, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34078581

RESUMO

BACKGROUND: Prospective bicuspid low-risk transcatheter aortic valve replacement (TAVR) registries' data demonstrated encouraging short-term results. Detailed data on transcatheter heart valve (THV) geometry after deployment using contemporary devices are lacking. This study sought to examine valve geometry after TAVR in patients with bicuspid aortic stenosis (AS). METHODS: The study population was patients from the LRT (Low Risk TAVR) trial who underwent TAVR using the SAPIEN 3 THV for bicuspid and tricuspid AS. THV geometry measured on 30-day computed tomography (CT) included valve height, angle, depth, and eccentricity. Additionally, THV hemodynamics and outcomes post-TAVR were compared among patients with bicuspid and tricuspid AS. RESULTS: A total of 107 patients from the LRT trial using the SAPIEN 3 THV were included in our analysis. On 30-day CT, the valve height ratio (1.07 vs. 1.07; p = 0.348), depths (right [5.6 mm vs. 6.2 mm; p = 0.223], left [5.3 mm vs. 4.4 mm; p = 0.082] and non [4.8 mm vs. 4.5 mm; p = 0.589] coronary cusps), eccentricities (1.08 vs. 1.07; p = 0.9550), and angles (except the right [3.9 degrees vs. 6.3 degrees; p = 0.003] and left [3.6 degrees vs. 6.0 degrees; p = 0.007]) were similar between bicuspid and tricuspid patients. Hemodynamics, stroke, and mortality were similar at 1 year. CONCLUSION: Despite challenging bicuspid anatomy of the aortic valve, our comprehensive CT analysis supports similar THV geometry between patients with bicuspid and tricuspid AS undergoing TAVR using the SAPIEN 3 THV in low-risk patients. This translated to excellent short-term clinical outcomes and THV hemodynamics in both aortic valve morphologies. TRIAL REGISTRY: NCT02628899, https://clinicaltrials.gov/ct2/show/NCT02628899.


Assuntos
Estenose da Valva Aórtica , Próteses Valvulares Cardíacas , Substituição da Valva Aórtica Transcateter , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Humanos , Estudos Prospectivos , Desenho de Prótese , Substituição da Valva Aórtica Transcateter/efeitos adversos , Resultado do Tratamento
8.
J Heart Valve Dis ; 19(1): 149-51, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20329501

RESUMO

The case is reported of a patient who underwent aortic valve replacement (AVR) in 1969 and received a (first-generation) Björk-Shiley Delrin valve. Forty years later, the patient presented to the authors' hospital in congestive heart failure and with echocardiographic evidence of severe stenosis and mild aortic regurgitation. The patient underwent a redo sternotomy and AVR with a bioprosthesis. On gross examination, the explanted 40-year-old mechanical valve appeared intact.


Assuntos
Próteses Valvulares Cardíacas , Estenose da Valva Aórtica/cirurgia , Ecocardiografia Transesofagiana , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/fisiopatologia , Implante de Prótese de Valva Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Ajuste de Prótese , Reoperação , Volume Sistólico , Fatores de Tempo
9.
J Card Surg ; 24(5): 548-50, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19740296

RESUMO

Spontaneous rupture of the ascending thoracic aorta without any history of aneurysm, trauma, infection, dissection, or previous surgery is a very rare and potentially lethal event. We report a case of spontaneous rupture of the ascending aorta treated successfully. While the etiology is still unclear, diagnosis with bedside transesophageal echocardiography prompted emergent surgical intervention.


Assuntos
Aorta/cirurgia , Ruptura Aórtica/cirurgia , Aorta/diagnóstico por imagem , Aorta/patologia , Ruptura Aórtica/diagnóstico por imagem , Ruptura Aórtica/patologia , Ecocardiografia Transesofagiana , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
10.
J Heart Valve Dis ; 17(5): 593-5, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18980097

RESUMO

The case is presented of chronic aortic valve endocarditis in a previously asymptomatic 54-year-old male. The main initial clinical manifestation was cardiogenic shock, but further examination revealed the presence of a large mobile mass attached to a bicuspid aortic valve, partially occluding the left coronary ostium. The patient underwent emergency surgery to excise the vegetative mass and preserve the aortic valve. The postoperative outcome was satisfactory.


Assuntos
Valva Aórtica , Oclusão Coronária/etiologia , Embolia/complicações , Endocardite Bacteriana/complicações , Infecções por Bactérias Gram-Positivas/complicações , Cocos Gram-Positivos , Isquemia Miocárdica/etiologia , Choque Cardiogênico/etiologia , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Ponte de Artéria Coronária , Oclusão Coronária/diagnóstico por imagem , Oclusão Coronária/cirurgia , Diagnóstico Diferencial , Ecocardiografia Transesofagiana , Embolia/diagnóstico por imagem , Embolia/cirurgia , Endocardite Bacteriana/diagnóstico por imagem , Endocardite Bacteriana/cirurgia , Infecções por Bactérias Gram-Positivas/diagnóstico por imagem , Infecções por Bactérias Gram-Positivas/cirurgia , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/cirurgia , Hemodinâmica/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico por imagem , Isquemia Miocárdica/cirurgia , Choque Cardiogênico/diagnóstico por imagem , Choque Cardiogênico/cirurgia
11.
Heart Surg Forum ; 11(4): E255-6, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18782707

RESUMO

Chordae rupture is the most common cause of severe acute mitral insufficiency. Many different mechanisms can cause an acute chordal rupture: degenerative mitral valve disease, infective endocarditis, myocardial infarction, or a posttraumatic event. We present 2 cases of acute mitral regurgitation requiring urgent surgery due to a posterior leaflet chorda rupture after extreme physical exercise.


Assuntos
Cordas Tendinosas/lesões , Insuficiência da Valva Mitral/etiologia , Insuficiência da Valva Mitral/cirurgia , Esforço Físico , Doença Aguda , Ecocardiografia Transesofagiana , Ventrículos do Coração/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Valva Mitral/cirurgia , Insuficiência da Valva Mitral/diagnóstico , Radiografia , Ruptura/complicações , Resultado do Tratamento , Levantamento de Peso
12.
J Am Coll Surg ; 202(1): 131-8, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16377506

RESUMO

BACKGROUND: Because of the immunomodulatory effects of transfusion, we attempted to identify factors associated with blood product use and determine the association of transfusion quantity with postoperative infection. STUDY DESIGN: We studied total perioperative transfusion of blood products for 15,592 cardiovascular operations performed from July 1998 to May 2003. Infection end points were septicemia/bacteremia (n=351, 2.2%) and superficial (n=353, 2.3%) and deep (n=212, 1.4%) sternal wound infections. Factors associated with blood product administration were used to form balancing scores to adjust for differences in patient characteristics among those receiving and not receiving blood products. RESULTS: Fifty-five percent of patients received packed red blood cells (RBC), 21% received platelets, 13% got fresh frozen plasma (FFP), and 3% got cryoprecipitate. Factors associated with RBC use included older age, female gender, higher New York Heart Association class, lower hematocrit, reoperation, and longer cardiopulmonary bypass time--all indicative of higher-risk patients. The more RBC units transfused, the higher was the occurrence of septicemia/bacteremia (p < 0.0001) and superficial (p=0.0007) and deep (p < 0.0001) sternal wound infection. Use of FFP (septicemia/bacteremia) and platelets (septicemia/bacteremia and deep sternal wound infection) mitigated against this association only slightly. CONCLUSIONS: Blood products tended to be used in the sickest patients. But after accounting for this, risk of infection increased incrementally with each unit of blood transfused. Although cause and effect cannot be established, results suggested that blood product transfusion is an independent risk factor for postoperative infection in cardiac surgical patients, blood products are more likely to be used in the sickest patients, and no amount of blood loss treated by transfusion is innocuous.


Assuntos
Bacteriemia/etiologia , Transfusão de Componentes Sanguíneos/estatística & dados numéricos , Procedimentos Cirúrgicos Cardíacos , Troca Plasmática/estatística & dados numéricos , Infecção da Ferida Cirúrgica/etiologia , Idoso , Feminino , Cardiopatias/complicações , Cardiopatias/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
13.
Eur J Cardiothorac Surg ; 49(1): 350-1, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25669643

RESUMO

Performing a reoperative root replacement in cases of prosthetic valve endocarditis (PVE) can often be challenging due to significant inflammation and scarring. During these cases, surgeons may decide to utilize an interpositional graft when mobilization of the coronary ostia becomes too hazardous. The authors describe their experience performing a reoperative root replacement on a patient with PVE. In this case, the authors utilize a segment of the homograft left subclavian artery as an interpositional graft to provide an infection-resistant bioprosthetic graft that maintains coronary anatomy.


Assuntos
Aorta Torácica/cirurgia , Implante de Prótese Vascular/métodos , Vasos Coronários/cirurgia , Infecções Relacionadas à Prótese/cirurgia , Idoso , Valva Aórtica/cirurgia , Bioprótese/efeitos adversos , Endocardite Bacteriana/cirurgia , Próteses Valvulares Cardíacas/efeitos adversos , Implante de Prótese de Valva Cardíaca , Humanos , Masculino , Reoperação/métodos , Infecções Estafilocócicas/cirurgia
14.
Eur J Cardiothorac Surg ; 49(1): 203-10, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26003960

RESUMO

OBJECTIVES: Recent studies have demonstrated the superiority of bilateral internal mammary arteries (BIMAs) as conduit material for coronary artery bypass grafting (CABG) surgery. However, there is limited research on the effects of other graft conduits used in patients who require additional bypasses. The goal of this study was to evaluate the impact of the radial artery (RA) when used in conjunction with the BIMAs. METHODS: From the beginning of 2000 to the end of 2013, 4370 patients underwent CABG for three or more vessels at our institution. There were 568 and 183 patients who received BIMA + saphenous vein graft (SVG) and BIMA + radial ± SVG, respectively. Propensity matching was used to create a balanced cohort from these patients, which resulted in two groups of 183 patients. Thirty-day outcomes and long-term survival were compared between the two groups. Long-term follow-up was generated using the Social Security Death Index. RESULTS: There were no significant differences in preoperative characteristics. For 30-day outcomes, the BIMA + radial ± SVG group had more postoperative atrial fibrillation (24.6 vs 12.0%; P = 0.001) and a longer median postoperative length of stay (6 vs 5 days; interquartile range = 2; P = 0.016) than BIMA + SVG patients. There was no significant difference in long-term survival between the two groups over the 14-year period. However, before year 10, the BIMA + SVG group had a trend towards higher survival, whereas on follow-up after 10 years, there was a trend that favoured the BIMA + radial ± SVG patients. Cox regression analysis using a time-dependent covariate demonstrated that when the groups were split at 10 years, there was a statistically significant improvement in survival of the BIMA + radial ± SVG group [adjusted hazard ratio 0.254 95% confidence interval (CI) 0.062-0.977; P = 0.048] over BIMA + SVG patients between 10 and 14 years. CONCLUSIONS: Overall, there were no statistically significant differences in survival between the BIMA + SVG and BIMA + radial ± SVG groups over the 14 years. However, further analysis demonstrated that while the BIMA + radial ± SVG group had a trend towards decreased survival before 10 years, use of the RA in conjunction with BIMAs was associated with significantly increased survival in the later years. A larger cohort of patients with longer follow-up is needed to assess the outcomes of CABG using BIMA + radial ± SVG.


Assuntos
Ponte de Artéria Coronária/métodos , Doença da Artéria Coronariana/cirurgia , Artéria Torácica Interna/transplante , Artéria Radial/transplante , Adulto , Idoso , Doença da Artéria Coronariana/mortalidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pontuação de Propensão , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
15.
Heart Surg Forum ; 8(4): E249-52, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16112938

RESUMO

A 76-year-old male with ischemic cardiomyopathy presented with heart failure symptoms in the absence of angina. Several hospitalizations were required due to heart failure exacerbation and paroxysmal atrial fibrillation. Electrocardiography and tissue synchronization imaging confirmed ventricular dyssynchrony, requiring biventricular pacing. After a failed attempt of percutaneous placement of the left ventricular lead, a novel minimally invasive approach was indicated. It consisted of left ventricular epicardial lead placement, microwave pulmonary vein isolation, and left atrial appendage excision through bilateral minithoracotomies. The postoperative recovery was unremarkable, with reestablishment of the ventricular synchrony and regular rhythm.


Assuntos
Apêndice Atrial/cirurgia , Fibrilação Atrial/cirurgia , Desfibriladores Implantáveis , Insuficiência Cardíaca/cirurgia , Veias Pulmonares/cirurgia , Idoso , Humanos , Masculino , Toracotomia/métodos
16.
J Thorac Cardiovasc Surg ; 149(4): 1027-33.e2, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25648476

RESUMO

OBJECTIVE: Previous studies have demonstrated that bilateral internal mammary artery (BIMA) grafts lead to superior outcomes compared with single internal mammary artery grafts. This study examines whether cardiopulmonary bypass affects conduit-dependent outcomes of coronary artery bypass grafting (CABG) surgery. METHODS: From 1994 to 2013, a total of 6666 patients underwent isolated CABG surgery at our institution. Of these procedures, 3548 (53.2%) were performed off pump. A BIMA-saphenous vein graft (SVG) was used in 1544, and 5122 had left internal mammary artery-SVGs. These 2 conduit groups differed significantly in baseline characteristics. Propensity matching based on 22 preoperative variables and using a nearest-neighbor matching algorithm was used to make balanced cohorts, resulting in 2 groups of 1006. To account for the influence of pump status on conduit selection, a second propensity score was developed for pump use. These cases were matched to create 4 patient cohorts of 353 patients each (a total of 1412), balanced for both conduit use and pump status. Late mortality was determined using the Social Security Death Index. RESULTS: No difference was found in survival between patients receiving BIMA-SVGs on or off pump (78.9% vs 79.1%). BIMA-SVGs outperformed the left internal mammary artery-SVGs regardless of whether the procedure was performed off pump (73.9%) or on pump (69.9%). CONCLUSIONS: This study demonstrates that the use of cardiopulmonary bypass does not significantly affect the long-term outcomes in these patients as long as full revascularization is achieved. In addition, these results are consistent with prior research showing that the use of BIMAs produces better outcomes than use of a single internal mammary artery when performing CABG.


Assuntos
Ponte Cardiopulmonar , Ponte de Artéria Coronária sem Circulação Extracorpórea , Ponte de Artéria Coronária/métodos , Doença da Artéria Coronariana/cirurgia , Artéria Torácica Interna/cirurgia , Veia Safena/transplante , Ponte Cardiopulmonar/efeitos adversos , Ponte Cardiopulmonar/mortalidade , Ponte de Artéria Coronária/efeitos adversos , Ponte de Artéria Coronária/mortalidade , Ponte de Artéria Coronária sem Circulação Extracorpórea/efeitos adversos , Ponte de Artéria Coronária sem Circulação Extracorpórea/mortalidade , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/mortalidade , Bases de Dados Factuais , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Masculino , New Jersey , Pontuação de Propensão , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
17.
Asian Cardiovasc Thorac Ann ; 22(5): 566-73, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24867031

RESUMO

BACKGROUND: Elderly patients with aortic stenosis are under-referred for aortic valve replacement surgery. This study investigated the perioperative factors associated with midterm outcomes in a consecutive series of patients undergoing aortic valve replacement with or without coronary artery bypass graft surgery. METHODS: From 2006 to 2010, 509 patients having aortic valve replacement or aortic valve replacement with coronary artery bypass were grouped according to age (<80 years and ≥80 years) and procedure (aortic valve replacement ± coronary artery bypass). Patient survival was followed up for 5 years (mean 2.6 years). Midterm survival was evaluated using Kaplan-Meier and Cox proportional hazards regression model statistics. RESULTS AND CONCLUSIONS: 5-year survival among octogenarians was 59.2% with an observed 30-day mortality of 1% for aortic valve replacement and 3% for aortic valve replacement with coronary artery bypass. Kaplan-Meier survival analysis showed that age ≥80 years, New York Heart Association functional class III/IV, and left ventricular ejection fraction <35% were significantly associated with increased midterm mortality. Cox regression modeling demonstrated that age ≥80 years was the only significant independent factor associated with midterm mortality; older patients had a 3-fold increase in mortality (adjusted hazard ratio = 3.231, 95% confidence interval: 1.764-5.920, p < 0.0001). While hospital and 30-day mortality were not statistically different between age groups, age ≥80 years was the most powerful predictor of midterm death. These results support early aortic valve replacement with or without coronary artery bypass in aortic stenosis management.


Assuntos
Estenose da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Implante de Prótese de Valva Cardíaca , Idoso , Idoso de 80 Anos ou mais , Valva Aórtica/fisiopatologia , Estenose da Valva Aórtica/mortalidade , Estenose da Valva Aórtica/fisiopatologia , Ponte de Artéria Coronária , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/fisiopatologia , Doença da Artéria Coronariana/cirurgia , Feminino , Implante de Prótese de Valva Cardíaca/efeitos adversos , Implante de Prótese de Valva Cardíaca/mortalidade , Mortalidade Hospitalar , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Volume Sistólico , Fatores de Tempo , Resultado do Tratamento , Função Ventricular Esquerda
18.
Innovations (Phila) ; 8(5): 371-5, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24346587

RESUMO

OBJECTIVE: The left atrial appendage (LAA) is the source of 90% of thrombi in patients with atrial fibrillation. Our double LAA ligation (LLAA) technique was shown to be 96% successful in a small study. However, the outcomes of these patients have yet to be compared with a set of nonligated patients. METHODS: From 2005 to 2012, a total of 808 patients received LAA using our double ligation technique using both a polydioxanone (PDS) II endosnare and a running 4-0 Prolene pledgeted suture. The 30-day outcomes of these patients were compared with that of nonligated patients. Fifty-six of the ligated patients had a postoperative transesophageal echocardiography (TEE). An echocardiographer reviewed the follow-up TEEs for LAA remnant and/or residual flow into the LAA using color Doppler imaging. The patients with LAA flow and/or remnant depth of 1 cm or greater were deemed to have an unsuccessful exclusion. RESULTS: The ligated group had a trend of less postoperative atrial fibrillation (19.4% vs 22.9%, P = 0.07) and an overall significantly lower in-hospital mortality (0.7% vs 3.0%, P < 0.001) and lower 30-day mortality (0.7% vs 3.4%, P < 0.0001). The LAA was successfully excluded in 53 (94.7%) of the 56 patients with TEE. CONCLUSIONS: Double LAA ligation correlates with lower rates of in-hospital and 30-day mortality. This advantage comes without an increase in perioperative complications. This technique can easily be performed off or on pump, is very reproducible, and comes at a very low cost compared with LAA occlusion devices. Stroke has a multifactorial etiology; successful LLAA removes one potential source of thrombi perioperatively and in the long-term.


Assuntos
Apêndice Atrial/cirurgia , Ecocardiografia Transesofagiana , Pericárdio/cirurgia , Idoso , Apêndice Atrial/diagnóstico por imagem , Fibrilação Atrial/cirurgia , Ecocardiografia Transesofagiana/métodos , Feminino , Humanos , Ligadura/métodos , Masculino , Pessoa de Meia-Idade , Pericárdio/diagnóstico por imagem , Técnicas de Sutura/instrumentação , Suturas , Resultado do Tratamento
19.
J Invasive Cardiol ; 24(2): 49-52, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22294531

RESUMO

BACKGROUND: The current standard of care is to delay coronary surgery 5-7 days after clopidogrel exposure to prevent bleeding complications. We sought to determine the utility of an objective tool (ie, the VerifyNow assay) to measure platelet inhibition (PI) in patients receiving preoperative clopidogrel prior to off-pump coronary artery bypass grafting surgery (OPCABG). PATIENTS AND METHODS: Between June 2007 and July 2009, a total of 482 isolated OPCABG procedures were performed at our institution. In 160 patients, the VerifyNow assay results were used to determine timing of the OPCABG. These patients were compared to the remaining 322 patients. We divided the cohort into 4 subgroups: Group 1 patients (n = 205) were not taking clopidogrel; Group 2 patients (n = 117) were taking clopidogrel, but the test was not performed; Group 3 patients (n = 122) were taking clopidogrel and had a preoperative PI result of ≤20%; and Group 4 patients (n = 38) had ≥21% preoperative PI. RESULTS: Demographic and clinical factors were compared in all groups. The median waiting time for surgery from the last dose of clopidogrel was 6 days for the control groups and 3 days for the groups where the test was performed (P<.001). Reoperation for bleeding occurred most often in Group 4 (7.9%; P=.003). Blood utilization was lower in Group 1 (24.4%) than in Groups 2 (34.2%), 3 (40.2%), or 4 (55.3%) (P<.001). Major complications and postoperative length of stay were similar in all groups. CONCLUSIONS: Utilization of a PI tool in the preoperative assessment of OPCABG patients exposed to clopidogrel can provide valuable information to guide the timing of coronary surgery and may lead to a decrease in reoperation for bleeding and blood usage.


Assuntos
Testes de Coagulação Sanguínea , Perda Sanguínea Cirúrgica/prevenção & controle , Ponte de Artéria Coronária sem Circulação Extracorpórea , Inibidores da Agregação Plaquetária/administração & dosagem , Agregação Plaquetária/efeitos dos fármacos , Ticlopidina/análogos & derivados , Difosfato de Adenosina/farmacologia , Idoso , Transfusão de Sangue , Clopidogrel , Feminino , Humanos , Masculino , Complicações Pós-Operatórias , Cuidados Pré-Operatórios , Reoperação , Ticlopidina/administração & dosagem
20.
Interact Cardiovasc Thorac Surg ; 15(3): 371-6, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22665381

RESUMO

OBJECTIVES More elderly patients (>80 years of age) are being referred for aortic valve replacement (AVR) with or without CABG. Current risk stratification models may not accurately predict the preoperative risk in these patients. We sought to determine which perioperative variables were relevant in determining short-term (30-day to in-hospital) outcomes in our intuition's series of consecutive AVR and AVR+CABG surgeries. We constructed a novel variable, patient-prosthesis mismatch (PPM) in the presence of diminished functional status (NYHA) classification, and studied its role as a predictor of mortality risk. METHODS From 2006 to 2010, 509 patients undergoing AVR or AVR+CABG were evaluated. We created four groups based on the age and procedure (AVR >80, AVR+CABG >80, AVR <80 and AVR+CABG <80). PPM was defined as a calculated effective orifice area index value of ≤ 0.85, and it was calculated from manufacturer-generated charts. In-hospital and 30-day outcomes were assessed using the Chi-square and logistic regression analyses. RESULTS Overall observed 30-day mortality for all groups was lower (n = 8, 1.6%) than the STS-predicted mortality. Reoperation and PPM+NYHA class III-IV were associated with short-term mortality, but age >80 years was not. Octogenarians referred for surgery often had advanced heart failure. CONCLUSIONS Overall, short-term outcomes after AVR with or without CABG were excellent and lower than predicted by the STS model. The low risk of AVR with CABG supports the consideration for earlier surgical referral and intervention for patients with a high likelihood of aortic stenosis progression before the onset of advanced heart failure ensues, regardless of the age. This should help further decrease the already very low mortality observed in these series. Efforts to avoid PPM in the setting of advanced heart failure may improve short-term results in this subset of patients.


Assuntos
American Heart Association , Estenose da Valva Aórtica/cirurgia , Insuficiência Cardíaca/cirurgia , Próteses Valvulares Cardíacas/classificação , Falha de Prótese , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estenose da Valva Aórtica/complicações , Estenose da Valva Aórtica/mortalidade , Feminino , Seguimentos , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/mortalidade , Mortalidade Hospitalar/tendências , Humanos , Masculino , New York , Estudos Prospectivos , Fatores de Risco , Taxa de Sobrevida/tendências , Estados Unidos/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA