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1.
ASAIO J ; 2020 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-32028295

RESUMO

The use of percutaneous ventricular assist devices (VADs) in the acute management of cardiogenic shock is becoming increasingly common. The Impella is a percutaneous VAD, which requires a heparin-containing purge solution to prevent thrombosis and maintain proper pump functionality. In this report, we describe two patients with heparin-induced thrombocytopenia (HIT) supported with an Impella using a bivalirudin-containing purge solution. Case 1 involved a 39-year-old man with cardiogenic shock, initially implanted with an intraaortic balloon pump, who developed HIT early in his hospital course. His worsening hemodynamics necessitated the placement of an Impella and later venoarterial extracorporeal membrane oxygenation until he eventually underwent durable left VAD implantation. Case 2 involved a 69-year-old man who had an Impella implanted for worsening cardiogenic shock. HIT was suspected shortly after device insertion, necessitating switching his anticoagulation to bivalirudin. He was successfully bridged directly to heart transplantation. Both patients' courses resulted in therapeutic anticoagulation without major bleeding or thrombotic events. These cases demonstrate the safe and effective use of bivalirudin-containing purge solutions for patients with confirmed HIT requiring temporary mechanical circulatory support with Impella.

2.
Cardiovasc Pathol ; 45: 107190, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31896440

RESUMO

Myocarditis continues to present challenges in diagnosis and management. The goal of this study is to determine the occurrence and manifestations of myocarditis in a heart failure (HF) population. The analyzed patients had acute or persistent HF and were referred over a 6-year period to a quaternary HF center for advanced HF therapies including mechanical circulatory support, left ventricular assist device (LVAD) implantation, and/or heart transplantation. The histopathological diagnosis of myocarditis was made based on the presence of an inflammatory infiltrate of the myocardium, typically with associated cardiomyocyte (CMC) damage, combined as indicated with immunohistochemical and molecular biology characterization. The pathological findings were correlated with a panel of clinical parameters and clinical course of the patients. Myocarditis was identified in 36 patients, with initial diagnoses made in 10 (40%) of 25 by endomyocardial biopsy (EMB), 1 by atrial biopsy (maze procedure), 7 (2.1%) of 331 at LVAD implantation, and 18 (7.8%) of 229 in the explanted heart. There were 20 cases of lymphocytic myocarditis, 4 cases of giant cell myocarditis, 3 cases of eosinophilic myocarditis, and 9 cases of lymphohistocytic with granulomas myocarditis - cardiac sarcoidosis. EMB was performed in 25 patients and was positive in 10 (40%) of cases. Myocarditis was found in 23 explanted hearts including 18 cases de novo and 5 cases with a previously positive specimen. Of the 23 explanted hearts, 21 were nonischemic cardiomyopathy and 2 were ischemic cardiomyopathy. Our findings show that, in patients presenting to a quaternary medical center, myocarditis can be manifest as acute HF as well as a complicating factor in chronic HF.

3.
ASAIO J ; 66(1): e15-e18, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30913097

RESUMO

Rescuing heterotopic heart transplantation (HHT) patients remains a challenge in the field. When a 41-year-old patient was transferred to our service, we chose a novel approach that is reported herein. The HHT had been performed over 20 years ago, and in 2016, because of complications, the patient was listed for transplant with a 1A status. For the first time, the SynCardia 50cc total artificial heart (TAH) (SynCardia Systems, LLC, Tucson, AZ) was used in an HHT patient. Investigators attained approval to use the SynCardia 50cc investigational device, as this was an emergent case with few options. The donor heart from the HHT was left in place, alongside the TAH. By leaving the donor heart from the HHT, the need for long and tedious extensive dissection around the right lung was eliminated; thereby reducing the potential risk of lung parenchymal injury, massive bleeding, and complex air leaks. The procedure was successful, and the patient underwent a successful orthotopic heart transplantation six months after being placed on TAH.

4.
Tex Heart Inst J ; 46(3): 222-224, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31708709

RESUMO

Low origin of the coronary arteries, defined as an origin less than 10 mm above the functional aortic annulus, is not usually considered to be a notable anomaly because functional impairment is not intrinsic. We describe a case of severe complications after surgical aortic valve replacement in a 59-year-old woman who had symptomatic aortic valve stenosis, low origin of both main coronary arteries, and a hypoplastic aortic annulus less than 19 mm in diameter. The aortic prosthesis had to be implanted above the hypoplastic anatomic annulus. An inferior-wall myocardial infarction, hypotension, right-sided heart failure, and atrial fibrillation developed during the early perioperative period. Coronary angiograms showed occlusion of the right coronary artery ostium and critical stenosis of the left coronary ostium. During reoperation, posterior aortic patch annuloplasty enabled lower reimplantation of the prosthetic aortic valve, jointly with right coronary artery-venous grafting. To prevent potentially severe complications, we recommend that low origin of the coronary arteries be reported before patients undergo surgical aortic valve replacement. If the ostia are not seen when routine coronary angiography is used, computed tomography should be prospectively performed to characterize this anomaly.


Assuntos
Anormalidades Múltiplas , Estenose da Valva Aórtica/cirurgia , Valva Aórtica/anormalidades , Anuloplastia da Valva Cardíaca/métodos , Anomalias dos Vasos Coronários/diagnóstico , Implante de Prótese de Valva Cardíaca/métodos , Complicações Intraoperatórias , Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/diagnóstico , Angiografia Coronária , Ponte de Artéria Coronária/métodos , Anomalias dos Vasos Coronários/cirurgia , Ecocardiografia , Eletrocardiografia , Feminino , Humanos , Pessoa de Meia-Idade
5.
ASAIO J ; 2019 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-31425270

RESUMO

Left ventricular assist devices (LVADs) increase survival of patients with heart failure. However, long-term LVAD usage can result in aortic insufficiency (AI), thereby compromising LVAD efficiency. Transcatheter aortic valve replacement (TAVR) is an alternative for patients with high risk for surgical valve replacement. We present three cases that developed moderate to severe AI while on HeartMate II (Abbott Laboratories, Chicago, IL) LVAD support; hence, TAVR procedure was performed. Patients A and B (74 year old and 38 year old) developed severe AI and patient C (67 year old) developed moderate AI with cardiogenic shock, after 368, 1,288, and 342 days on LVAD support, respectively. Their aortic valve annulus sizes were 24.2, 24.6, and 23.3 mm, respectively. Oversized Edwards SAPIEN 3 valves (Edwards, Lifesciences, Irvine, CA) were implanted via a transfemoral approach. The patients were hemodynamically stable after the procedure with mild AI in patient A and no AI in patients B and C. Patients were all discharged to home. Follow-up in patients A and C have resulted in long-term (> 2 years) survival and patient B died 616 days after the procedure due to unrelated complications. Transcatheter aortic valve replacement may be an alternative way to manage AI in LVAD patients. Larger studies are needed to evaluate the long-term efficacy of this approach.

6.
ASAIO J ; 2019 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-31425271

RESUMO

Dysfunction of different components within continuous-flow (CF) left ventricular assist device (LVAD) systems may cause adverse cardiovascular and end-organ sequelae. Outflow graft obstruction is a recognized type of LVAD component dysfunction. Ten patients were admitted and treated for LVAD outflow graft obstruction. Two of these patients subsequently developed recurrent outflow graft obstruction requiring reintervention; however, each reoccurrence was at a different site than the original obstruction. Thus, a total of 12 cases of obstruction were analyzed. The most common reasons for hospital admission were low flow LVAD alarms or decompensated heart failure. Presentation with outflow graft obstruction occurred an average of 3.0 years after LVAD implantation. Patients underwent echocardiographic evaluation at the time of admission. Left ventricular assist device component dysfunction was suspected based on echocardiographic findings, and follow-up contrast studies were used to establish the specific diagnosis of outflow graft stenosis. The majority of stenotic lesions (10/12) were treated percutaneously with balloon angioplasty and stenting with balloon-expandable endovascular prostheses. Postintervention, all patients had significant improvement in LVAD flow rates.

7.
Artigo em Inglês | MEDLINE | ID: mdl-31279538

RESUMO

Ventricular perforation is a rare complication during a high-risk percutaneous coronary intervention (PCI) when supported by Impella® (Abiomed). However, instrumentation of the left ventricle several days after transmural infarct potentially increases susceptibility for perforation. While a patient is on Impella support, physicians should review ventriculograms carefully to detect perforation and should consider the presence of a decompressed ventricle, the absence of normal systolic pressure and the movement of contrast from the ventricle into the aorta bypassing the left ventricular ejection. Immediate removal of the Impella if a perforation occurs must be avoided. Retrieving the device would risk a catastrophic bleed, while alternative repair techniques are available. Here, we describe a patient with a left ventricle perforation that occurred during a high-risk PCI supported by an Impella device. ANNOTATED SUMMARY: The repair of a left ventricle perforation during high-risk PCI in a patient who had an unrecognized left ventricular perforation is described. Physicians are encouraged to carefully review ventriculograms to identify the subtle changes that can indicate a perforation. Further, immediate removal of the temporary LVAD should be avoided to minimize the risk of catastrophic bleeds.

9.
Circ Heart Fail ; 12(2): e005454, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30759999

RESUMO

Ventricular assist device (VAD) technology has evolved significantly over the past decades and currently represents one of the most important treatment strategies for patients with advanced chronic heart failure. There is increasing evidence that in selected patients undergoing long-term VAD support, improvement of myocardial structure and function may occur. However, there seems to be a significant discrepancy between structural and functional recovery of the failing myocardium, as only a small fraction of VAD-supported patients demonstrate reverse structural remodeling and eventually reach clinically significant and stable, functional improvement. More recently, cell therapy has gained a growing interest in the heart failure community because of its potential to augment reverse remodeling of the failing myocardium. Although theoretically the combination of long-term VAD support and cell therapy may offer significant advantages over using these therapeutic modalities separately, it remains largely unexplored. This review aims to summarize the current state of the art of the effects of VAD support and cell therapy on the reverse remodeling of the failing myocardium and to discuss the rationale for using a combined treatment strategy to further promote myocardial recovery in patients with advanced chronic heart failure.


Assuntos
Insuficiência Cardíaca/terapia , Coração Auxiliar , Miocárdio/patologia , Miócitos Cardíacos/transplante , Implantação de Prótese/instrumentação , Transplante de Células-Tronco/métodos , Função Ventricular Esquerda , Animais , Doença Crônica , Terapia Combinada , Insuficiência Cardíaca/patologia , Insuficiência Cardíaca/fisiopatologia , Humanos , Miócitos Cardíacos/patologia , Desenho de Prótese , Implantação de Prótese/efeitos adversos , Recuperação de Função Fisiológica , Regeneração , Transplante de Células-Tronco/efeitos adversos , Remodelação Ventricular
10.
ASAIO J ; 65(8): 812-818, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30312207

RESUMO

Abnormalities in markers of liver injury after venoarterial extracorporeal membrane oxygenation (VA-ECMO) initiation are of unclear distribution and clinical significance. This study included all consecutive adult patients from a single institution who underwent VA-ECMO cannulation between May 2012 and September 2016 and had liver function panels drawn during their admission (n = 223). Data points include: age, sex, body mass index, diagnosis, duration of ECMO cannulation, duration of hospitalization, pre-ECMO cardiac arrest, central nervous system (CNS) injury, the presence of chronic kidney disease or acute renal failure, renal replacement therapy utilization, lactate levels, duration of pre-ECMO intubation, admission and peak bilirubin/aspartate aminotransferase (AST)/alanine aminotransferase (ALT)/alkaline phosphatase (ALP) levels, and time to peak bilirubin/AST/ALT/ALP in relation to cannulation. Multivariate Poisson regression analyses were performed to determine associations with mortality. In-hospital mortality was 66%. Serum bilirubin elevation appeared to significantly correlate continuously with mortality. Other markers of liver injury were not significant in final multivariate models. As a univariate factor, no patient survived with a total serum bilirubin greater than 30 mg/dl, and specificity for 90% mortality was crossed at 11 mg/dl. Mortality was also significantly associated with the presence of CNS injury and elevation of lactic acid levels. Postcannulation liver injury is significantly associated with increased mortality and total serum bilirubin appears to be a biomarker of considerable clinical significance.

11.
ASAIO J ; 65(7): 678-682, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30398982

RESUMO

In patients with left ventricular assist devices (LVADs), the association of driveline infection (DLI) and body mass index (BMI) remains controversial. The aim of this study was to explore a potential correlation between BMI and DLI in the LVAD patient population. A retrospective, single-center study evaluated patients who underwent LVAD implantation between May 2012 and July 2016. Driveline infection was evaluated per Interagency Registry for Mechanically Assisted Circulatory Support established criteria. Of 222 included patients, 80% were male, the average age was 55 years, and the main underlying heart failure diagnosis was nonischemic cardiomyopathy (56%). The majority of patients (65%) received LVAD as destination therapy and 35% as a bridge to transplantation. Average time-to-first DLI was 296 days after LVAD implantation. In comparison to non-DLI group (80%, N = 177), patients in DLI group (20%, N = 45) had a higher BMI (33.5 ± 8.3 kg/m in DLI group vs. 28.8 ± 7.5 kg/m in non-DLI group, p = 0.0003) and were younger (51 ± 12 years in DLI group vs. 56 ± 12 years in non-DLI group, p = 0.013). There was a significant correlation between BMI and DLI (p < 0.0001), and age was negatively correlated with DLI (p = 0.01). Analysis revealed no correlation between time-to-first DLI and BMI. Our data confirm that higher BMI is associated with increased prevalence of DLI in LVAD population, particularly in younger patients. Addressing excessive body weight in this patient cohort may significantly reduce DLI and thereby improve long-term outcomes.

12.
ASAIO J ; 64(5): 673-679, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29076944

RESUMO

The need for mechanical assistance of the failing heart has increased with improvements in medicine and a rapidly aging population. In recent decades, significant progress has been made in the development and refinement of ventricular assist devices (VADs). Such devices operate in mixed laminar, transitional, and turbulent flow regime. One tool that assists in the development of VADs by facilitating understanding of the physical and mechanical properties of these flow regimes is computational fluid dynamics (CFD). In our investigation, we tested an advanced turbulence model that is a further development from standard Reynolds-averaged Navier-Stokes (RANS) models. From estimated pump flow rates (Q0) and constant rotation speed (n), pressure head (Δp) was calculated and validated with experimental data. An advanced turbulence model called scale adaptive simulation (SAS) was used in the solving of six different working cases comparing numerical SAS-SST and standard SST-kω models to experimental results.


Assuntos
Simulação por Computador , Desenho de Equipamento/métodos , Coração Auxiliar , Humanos , Hidrodinâmica
13.
Cardiovasc Pathol ; 33: 1-5, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29245138

RESUMO

A 70-year old Caucasian man with recurrent ventricular tachycardia and progressive biventricular failure attributed to arrhythmogenic right ventricular cardiomyopathy/dysplasia was evaluated for heart transplantation. Cardiac ventriculography revealed an abnormal left ventricle with five saccular aneurysms. Heart transplantation was performed. Pathology of the explanted heart showed multifocal sarcoid granulomas. Replacement fibrosis was widespread in both ventricles and associated with saccular aneurysms. No genetic basis was identified. Thus, the evidence suggested progressive cardiac sarcoidosis caused this patient's unusual condition.


Assuntos
Displasia Arritmogênica Ventricular Direita/diagnóstico , Cardiomiopatias/diagnóstico , Aneurisma Cardíaco/diagnóstico , Sarcoidose/diagnóstico , Idoso , Biópsia , Cardiomiopatias/complicações , Cardiomiopatias/fisiopatologia , Cardiomiopatias/cirurgia , Angiografia Coronária , Erros de Diagnóstico , Fibrose , Aneurisma Cardíaco/etiologia , Aneurisma Cardíaco/fisiopatologia , Aneurisma Cardíaco/cirurgia , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/etiologia , Transplante de Coração , Humanos , Masculino , Miocárdio/patologia , Valor Preditivo dos Testes , Recidiva , Sarcoidose/complicações , Sarcoidose/fisiopatologia , Sarcoidose/cirurgia , Taquicardia Ventricular/diagnóstico , Taquicardia Ventricular/etiologia , Resultado do Tratamento
14.
Semin Ultrasound CT MR ; 38(6): 616-628, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29179901

RESUMO

Heart failure is becoming increasingly prevalent, and more patients are being treated with left ventricular assist devices (LVADs), either as a bridge to transplant or as destination therapy. The use of continuous-flow LVADs is on the rise. LVAD therapy is associated with several classes of complications, including bleeding, thrombosis, and infection. CT imaging can be used effectively to diagnose LVAD complications, including mediastinal hematomas and pericardial, abdominal wall, and retroperitoneal hemorrhage, inflow and outflow graft and aortic thrombi, and driveline and pump pocket infections. CT can also be helpful in cases of device malfunction and can detect outflow graft kinking and inflow cannula misalignment. When interpreting CT scans in patients with LVADs, accessory materials implanted with the device should not be mistaken for hemorrhage or calcification. With training in recognizing LVAD complications, radiologists can play an important role in the evaluation of patients with heart failure.


Assuntos
Coração Auxiliar/efeitos adversos , Tomografia Computadorizada por Raios X , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Politetrafluoretileno/efeitos adversos , Complicações Pós-Operatórias/etiologia , Infecção da Ferida Cirúrgica , Trombose/etiologia
15.
Tex Heart Inst J ; 44(4): 269-273, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28878582

RESUMO

We describe the case of a 57-year-old man who had severe mitral valve stenosis and regurgitation without significant annular calcification. He was not a candidate for surgical valve replacement or repair because of his substantial comorbid conditions, overall frailty, and elevated surgical risk. He underwent successful transcatheter mitral valve replacement of his native mitral valve with compassionate, off-label use of an Edwards Sapien 3 valve. A search of the literature produced no other cases like ours, which represents a further evolution of the transcatheter valve implantation concept. Further studies are needed to help define accurate valve sizing, intraprocedural positioning, and long-term device stability, as well as to determine which patients might benefit from this commercially available valve. In the meantime, our findings could present a means of treating patients who have no other options.


Assuntos
Cateterismo Cardíaco/instrumentação , Implante de Prótese de Valva Cardíaca/instrumentação , Próteses Valvulares Cardíacas , Insuficiência da Valva Mitral/cirurgia , Estenose da Valva Mitral/cirurgia , Valva Mitral/cirurgia , Cateterismo Cardíaco/métodos , Ensaios de Uso Compassivo , Ecocardiografia Doppler em Cores , Ecocardiografia Tridimensional , Ecocardiografia Transesofagiana , Implante de Prótese de Valva Cardíaca/métodos , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Valva Mitral/diagnóstico por imagem , Valva Mitral/fisiopatologia , Insuficiência da Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/fisiopatologia , Estenose da Valva Mitral/diagnóstico por imagem , Estenose da Valva Mitral/fisiopatologia , Desenho de Prótese , Índice de Gravidade de Doença , Resultado do Tratamento
16.
Tex Heart Inst J ; 44(3): 209-213, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28761403

RESUMO

A few case reports and case series have documented the outcomes in patients with tricuspid bioprosthetic valvular degeneration who underwent transcatheter implantation of the Medtronic Melody and the Edwards Sapien XT and Sapien 3 valves. In this report, we describe the case of a 49-year-old woman with severe bioprosthetic tricuspid valvular stenosis and multiple comorbidities who underwent transcatheter tricuspid valve replacement with a Sapien 3 valve.


Assuntos
Bioprótese , Cateterismo Cardíaco/instrumentação , Implante de Prótese de Valva Cardíaca/instrumentação , Próteses Valvulares Cardíacas , Falha de Prótese , Insuficiência da Valva Tricúspide/cirurgia , Estenose da Valva Tricúspide/cirurgia , Valva Tricúspide/cirurgia , Ecocardiografia Doppler em Cores , Feminino , Implante de Prótese de Valva Cardíaca/efeitos adversos , Humanos , Pessoa de Meia-Idade , Desenho de Prótese , Resultado do Tratamento , Valva Tricúspide/diagnóstico por imagem , Valva Tricúspide/fisiopatologia , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/fisiopatologia , Estenose da Valva Tricúspide/diagnóstico por imagem , Estenose da Valva Tricúspide/etiologia , Estenose da Valva Tricúspide/fisiopatologia
18.
J Extra Corpor Technol ; 49(2): 112-114, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28638160

RESUMO

Extracorporeal carbon dioxide removal (ECCO2R) permits reductions in alveolar ventilation requirements that the lungs would otherwise have to provide. This concept was applied to a case of hypercapnia refractory to high-level invasive mechanical ventilator support. We present a case of an 18-year-old man who developed post-pneumonectomy acute respiratory distress syndrome (ARDS) after resection of a mediastinal germ cell tumor involving the left lung hilum. Hypercapnia and hypoxemia persisted despite ventilator support even at traumatic levels. ECCO2R using a miniaturized system was instituted and provided effective carbon dioxide elimination. This facilitated establishment of lung-protective ventilator settings and lung function recovery. Extracorporeal lung support increasingly is being applied to treat ARDS. However, conventional extracorporeal membrane oxygenation (ECMO) generally involves using large cannulae capable of carrying high flow rates. A subset of patients with ARDS has mixed hypercapnia and hypoxemia despite high-level ventilator support. In the absence of profound hypoxemia, ECCO2R may be used to reduce ventilator support requirements to lung-protective levels, while avoiding risks associated with conventional ECMO.


Assuntos
Remoção de Componentes Sanguíneos/instrumentação , Dióxido de Carbono/sangue , Dióxido de Carbono/isolamento & purificação , Oxigenação por Membrana Extracorpórea/instrumentação , Respiração Artificial/instrumentação , Síndrome do Desconforto Respiratório do Adulto/sangue , Síndrome do Desconforto Respiratório do Adulto/terapia , Adolescente , Remoção de Componentes Sanguíneos/métodos , Diálise , Desenho de Equipamento , Análise de Falha de Equipamento , Oxigenação por Membrana Extracorpórea/métodos , Humanos , Masculino , Respiração Artificial/métodos , Resultado do Tratamento
19.
Tex Heart Inst J ; 44(2): 127-130, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28461798

RESUMO

Transcatheter aortic valve replacement (TAVR) in patients with bicuspid aortic valves has been successfully performed, but there is a lack of published experience in percutaneous treatment of patients with unicuspid valves and severe aortic stenosis. We describe a case of TAVR in such a patient. A 31-year-old woman with Turner syndrome-who had undergone coarctation repair via subclavian flap at age 7 days and an aortic valvotomy at age 6 weeks-presented with severe symptomatic aortic stenosis. She was deemed inoperable because of her severe pulmonary hypertension and numerous comorbidities; consequently, a 20-mm Edwards Sapien 3 Transcatheter Heart Valve was offered for compassionate use. Postdeployment angiography and transesophageal echocardiography and aortography revealed no aortic insufficiency. Transcatheter aortic valve replacement for unicuspid aortic valve stenosis is technically feasible. Before implantation, particular attention should be paid to the interplay between the large single leaflet, coronary ostia, and stented valve, to select the correct size and position of the device. Some degree of intraoperative aortic migration should be anticipated.


Assuntos
Estenose da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Cardiopatias Congênitas/cirurgia , Substituição da Valva Aórtica Transcateter , Adulto , Valva Aórtica/anormalidades , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/fisiopatologia , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/fisiopatologia , Aortografia , Ensaios de Uso Compassivo , Ecocardiografia Transesofagiana , Feminino , Cardiopatias Congênitas/diagnóstico por imagem , Cardiopatias Congênitas/fisiopatologia , Próteses Valvulares Cardíacas , Hemodinâmica , Humanos , Desenho de Prótese , Substituição da Valva Aórtica Transcateter/instrumentação , Resultado do Tratamento
20.
Tex Heart Inst J ; 44(2): 135-137, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28461800

RESUMO

Current criteria for donor hearts limit the number of hearts available for transplantation, despite an increasing number of recipients on waiting lists. We report the case of a patient with ischemic cardiomyopathy and refractory ventricular tachycardia who underwent successful orthotopic heart transplantation and concurrent aortic valve replacement with a donor heart that had displayed moderate aortic valve regurgitation. The patient was a 71-year-old man with a history of advanced heart failure, 5-vessel coronary artery bypass grafting, and paroxysmal ventricular tachycardia. He was not a candidate for repeat revascularization or myocardial ablation, so he was placed on the heart-transplant list as status 1A. On intra-aortic balloon pump support, the patient waited 51 days for a donor match to be identified. Despite the donor heart's having moderate aortic valve regurgitation, the decision was made to use that heart. We performed a back-table aortic valve replacement with a 23-mm St. Jude Epic bioprosthesis, and then performed the orthotopic heart transplantation. The patient did well and was discharged from the hospital on postoperative day 11. This case indicates that expanding donor criteria to include otherwise healthy hearts with certain aortic valve defects is feasible, if surgical experience and expertise permit.


Assuntos
Insuficiência da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Bioprótese , Seleção do Doador , Insuficiência Cardíaca/cirurgia , Transplante de Coração/métodos , Implante de Prótese de Valva Cardíaca/instrumentação , Próteses Valvulares Cardíacas , Doadores de Tecidos , Adolescente , Idoso , Valva Aórtica/fisiopatologia , Insuficiência da Valva Aórtica/diagnóstico , Insuficiência da Valva Aórtica/fisiopatologia , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Desenho de Prótese , Resultado do Tratamento
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