Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 4.198
Filtrar
1.
Clin Cardiol ; 47(5): e24268, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38741388

RESUMO

BACKGROUND: Observational studies suggest that valvular surgery can reduce mortality in selected patients with infective endocarditis (IE). However, the benefit of this intervention according to frailty levels remains unclear. Our study aims to assess the effect of valvular surgery according to frailty status in this population. METHODS: We performed a retrospective study using the 2016-2019 National Inpatient Sample database. Adult patients with a primary diagnosis of IE were included. Frailty was assessed using the Hospital Frailty Risk Score. Inverse probability of treatment weighting (IPTW) was used to balance baseline differences between groups. RESULTS: A total of 53,275 patients with IE were included, with 18.3% underwent valvular surgery. The median age was 52 (34-68) years, with 41% females. Overall, 42.7% had low risk of frailty, 53.1% intermediate risk, and 4.2% high risk. After IPTW adjustment, in-hospital mortality was similar both for the entire cohort between valvular and non-valvular surgery groups (3.7% vs. 4.1%, p = .483), and low (1% vs. 0.9%, p = .952) or moderate (5.4% vs. 6%, p = .548) risk of frailty. However, patients at high risk of frailty had significantly lower in-hospital mortality in the valvular surgery group (4.6% vs. 13.9%, p = .016). Renal replacement therapy was similar between groups across frailty status. In contrast, surgery was associated with increased use of mechanical circulatory support and pacemaker implantation. CONCLUSIONS: Our findings suggest that there was no difference in survival between valve surgery and medical management in patients at low/intermediate frailty risk, but not for high-risk individuals.


Assuntos
Endocardite , Fragilidade , Mortalidade Hospitalar , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fragilidade/complicações , Fragilidade/diagnóstico , Idoso , Endocardite/cirurgia , Endocardite/mortalidade , Endocardite/complicações , Fatores de Risco , Medição de Risco/métodos , Adulto , Estados Unidos/epidemiologia , Implante de Prótese de Valva Cardíaca/efeitos adversos , Doenças das Valvas Cardíacas/cirurgia , Doenças das Valvas Cardíacas/complicações , Taxa de Sobrevida/tendências
2.
PLoS One ; 19(4): e0301350, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38626136

RESUMO

Bicuspid aortic valve (BAV) is the most common cardiac congenital abnormality with a high rate of concomitant aortic valve and ascending aorta (AAo) pathologic changes throughout the patient's lifetime. The etiology of BAV-related aortopathy was historically believed to be genetic. However, recent studies theorize that adverse hemodynamics secondary to BAVs also contribute to aortopathy, but their precise role, specifically, that of wall shear stress (WSS) magnitude and directionality remains controversial. Moreover, the primary therapeutic option for BAV patients is aortic valve replacement (AVR), but the role of improved post-AVR hemodynamics on aortopathy progression is also not well-understood. To address these issues, this study employs a computational fluid dynamics model to simulate personalized AAo hemodynamics before and after TAVR for a small cohort of 6 Left-Right fused BAV patients. Regional distributions of five hemodynamic metrics, namely, time-averaged wall shear stress (TAWSS) and oscillating shear index (OSI), divergence of wall shear (DWSS), helicity flux integral & endothelial cell activation potential (ECAP), which are hypothesized to be associated with potential aortic injury are computed in the root, proximal and distal ascending aorta. BAVs are characterized by strong, eccentric jets, with peak velocities exceeding 4 m/s and axially circulating flow away from the jets. Such conditions result in focused WSS loading along jet attachment regions on the lumen boundary and weaker, oscillating WSS on other regions. The jet attachment regions also show alternating streaks of positive and negative DWSS, which may increase risk for local tissue stretching. Large WSS magnitudes, strong helical flows and circumferential WSS have been previously implicated in the progression of BAV aortopathy. Post-intervention hemodynamics exhibit weaker, less eccentric jets. Significant reductions are observed in flow helicity, TAWSS and DWSS in localized regions of the proximal AAo. On the other hand, OSI increases post-intervention and ECAP is observed to be low in both pre- and post-intervention scenarios, although significant increases are also observed in this ECAP. These results indicate a significant alleviation of pathological hemodynamics post AVR.


Assuntos
Doença da Válvula Aórtica Bicúspide , Doenças das Valvas Cardíacas , Humanos , Doenças das Valvas Cardíacas/complicações , Aorta/patologia , Valva Aórtica/fisiologia , Hemodinâmica/fisiologia , Estresse Mecânico
3.
J Cardiothorac Surg ; 19(1): 190, 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38589914

RESUMO

OBJECTIVES: Although risk factors for unsuccessful Maze procedure have been demonstrated, an appropriate patient selection is still controversial. In our institute, Maze procedure is indicated for those whom normal sinus rhythm (NSR) was reestablished by intraoperative direct cardioversion (DC) after ventricular unloading by total cardiopulmonary bypass. The purpose of this study was to evaluate the effectiveness of our indication criteria for Maze procedure in patients with mitral valve disease. METHODS: Between October 2012 and October 2021, MAZE was indicated in 55 patients in whom normal sinus rhythm (NSR) was reestablished by intraoperative direct current cardioversion (DC). Three endpoints and predictors were examined: disappearance of atrial fibrillation (AF), NSR, and A-wave detection. RESULTS: Restoration of NSR by intraoperative DC was confirmed in 43 patients, and these patients underwent MAZE. AF disappeared in 39 patients (90.7%), and F-wave ≥ 0.1 mV was a significant predictive factor (odds ratio (OR) 20.99, 95% CI 1.22-1079.06). NSR was reestablished in 36 patients (83.7%), and F-wave ≥ 0.1 mV (odds ratio 15.62, 95% CI 1.62-359.86) + AF history ≤ 3 years (OR 8.30, 95% CI 1.09-177.04) were significant predictors. A-wave detection was confirmed in 26 patients (60.5%), and left atrial diameter ≤ 55 mm was a significant predictor (OR 5.22, 95% CI 1.28-24.79). CONCLUSIONS: Intraoperative DC after ventricular unloading resulted effective patient selection for concomitant Maze procedure. F-wave and AF history were predictive factor of electrical restoration of AF, and left atrial diameter was predictive factor of restoration of atrial function.


Assuntos
Fibrilação Atrial , Ablação por Cateter , Doenças das Valvas Cardíacas , Insuficiência da Valva Mitral , Estenose da Valva Mitral , Humanos , Valva Mitral/cirurgia , Procedimento do Labirinto , Seleção de Pacientes , Estenose da Valva Mitral/cirurgia , Resultado do Tratamento , Doenças das Valvas Cardíacas/complicações , Fibrilação Atrial/diagnóstico , Ablação por Cateter/métodos
5.
Artigo em Inglês | MEDLINE | ID: mdl-38522871

RESUMO

While it is the main viable option in the growing child and young adult, the Ross procedure has expanded its applicability to older patients, for whom long-term results are equivalent, if not superior, to prosthetic aortic valve replacement. Strategies aiming at mitigating long-term autograft failure from root enlargement and valve regurgitation have led some to advocate for root reinforcement with prosthetic graft material. On the contrary, we will discuss herein the rationale for a tailored approach to the Ross procedure; this strategy is aimed at maintaining the natural physiology and interplay between the various autograft components. Several technical maneuvers, including careful matching of aortic and autograft annuli and sino-tubular junction as well as external support by autologous aortic tissue maintain these physiologic relationships and the viability of the autograft, and could translate in a lower need for late reintervention because of dilation and/or valve regurgitation.


Assuntos
Insuficiência da Valva Aórtica , Estenose da Valva Aórtica , Doenças das Valvas Cardíacas , Valva Pulmonar , Criança , Adulto Jovem , Humanos , Autoenxertos , Insuficiência da Valva Aórtica/cirurgia , Dilatação/efeitos adversos , Transplante Autólogo/efeitos adversos , Transplante Autólogo/métodos , Valva Aórtica/cirurgia , Doenças das Valvas Cardíacas/complicações , Doenças das Valvas Cardíacas/cirurgia , Reoperação , Valva Pulmonar/cirurgia , Estenose da Valva Aórtica/cirurgia , Resultado do Tratamento , Estudos Retrospectivos
6.
J Am Coll Cardiol ; 83(12): 1136-1146, 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38508846

RESUMO

BACKGROUND: Aortic aneurysm is common in patients with coarctation of aorta (COA), but it is unclear whether the risk of aortic aneurysms is due to COA or related to the presence of other risk factors such as bicuspid aortic valve (BAV) and hypertension. OBJECTIVES: The purpose of this study was to assess the relationship among COA, BAV, and thoracic aortic aneurysms. METHODS: A total of 867 patients with COA (COA group) were matched 1:1:1 to 867 patients with isolated BAV (BAV group) and 867 patients without structural heart disease (SHD) (no-SHD group). The COA group was further subdivided into a COA+BAV subgroup (n = 304 [35%]), and COA with tricuspid aortic valve (TAV) (COA+TAV subgroup [n = 563 (65%)]). Aortic dimensions were assessed at baseline and at 3, 5, and 7 years. RESULTS: Compared with the no-SHD group, the COA+BAV subgroup had larger aortic root diameter (37 mm [Q1-Q3: 30-43 mm] vs 32 mm [Q1-Q3: 27-35 mm]; P < 0.001) and mid ascending aorta dimeter (34 mm [Q1-Q3: 29-40 mm] vs 28 mm [Q1-Q3: 24-31 mm]; P = 0.008). Similarly, the BAV group had larger aortic root diameter (37 mm [Q1-Q3: 30-42 mm] vs 32 mm [Q1-Q3: 27-35 mm]; P < 0.001), and mid ascending aorta dimeter (35 mm [Q1-Q3: 30-40 mm] vs 28 mm [Q1-Q3: 24-31 mm]; P < 0.001). Compared with the COA+TAV subgroup, the COA+BAV subgroup and BAV group were associated with larger aortic root and mid ascending aorta diameter at baseline and follow-up. The risk of acute aortic complications was low in all groups. CONCLUSIONS: These findings suggest that BAV (and not COA) was associated with ascending thoracic aorta dimensions, and that patients with COA+TAV were not at a greater risk of developing ascending aortic aneurysms as compared with patients without SHD.


Assuntos
Aneurisma da Aorta Ascendente , Aneurisma Aórtico , Coartação Aórtica , Doença da Válvula Aórtica Bicúspide , Doenças das Valvas Cardíacas , Humanos , Valva Aórtica/diagnóstico por imagem , Coartação Aórtica/complicações , Coartação Aórtica/diagnóstico por imagem , Coartação Aórtica/epidemiologia , Doenças das Valvas Cardíacas/complicações , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/epidemiologia , Aneurisma Aórtico/etiologia
7.
Nurs Open ; 11(3): e2122, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38424686

RESUMO

AIM: The aim was to investigate the prevalence of, and factors related to frailty, together with early clinical outcomes, in hospitalized older patients with valvular heart disease (VHD) in China. DESIGN: A prospective observational cohort study was conducted. METHODS: A validated prospective survey was conducted to assess the prevalence of frailty, factors associated with it, and early clinical outcomes in hospitalized older patients with VHD, utilizing Fried's criterion. A total of 207 consecutive participants aged 65 years and older who underwent cardiac surgery were included in the study, spanning from September 2021 to December 2021. RESULTS: Frailty was detected in 78 patients (37.7%). Patients with multimorbidity, a New York Heart Association (NYHA) class of III/IV, or masticatory dysfunction had a greater incidence of frailty (p < 0.05). Patients with a normal albumin level and a higher frequency of exercise had a lower incidence of frailty (p < 0.05). Patients with frailty had longer hospital and intensive care unit stays and greater hospitalization costs than did those without frailty (p < 0.05). The 30-day adverse event rate of the frail group was also greater (11.5% vs. 3.1%). Therefore, early screening for conditions such as multimorbidity, cardiac dysfunction, and hypoalbuminemia is urgently needed to effectively address frailty, as it has been linked to unfavourable early outcomes. Moreover, promoting exercise and improving masticatory function and nutrition are crucial for preventing and managing frailty in older patients with VHD.


Assuntos
Fragilidade , Doenças das Valvas Cardíacas , Idoso , Humanos , Fragilidade/epidemiologia , Fragilidade/complicações , Fragilidade/diagnóstico , Idoso Fragilizado , Estudos Prospectivos , Prevalência , Doenças das Valvas Cardíacas/epidemiologia , Doenças das Valvas Cardíacas/cirurgia , Doenças das Valvas Cardíacas/complicações
8.
Int Heart J ; 65(2): 367-370, 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38479845

RESUMO

Papillary fibroelastoma (PFE) is a benign tumor that arises mostly from left-sided valves. PFE can cause stroke, and surgical resection may be needed. Lambl's excrescence (LE) is a filiform valvular lesion and is considered a possible cause of stroke. A 79-year-old man with light-headedness and left-sided hemiparesis was diagnosed with stroke. Transesophageal echocardiography (TEE) revealed a round-shaped mobile mass in the left ventricular outflow tract (LVOT), which was considered the cause of the stroke. Surgical resection was performed transaortically, and during surgery, a mass was incidentally detected on the noncoronary cusp (NCC), which was also resected followed by aortic valve replacement. Pathology confirmed that the mass in the LVOT was a PFE and that the filiform mass on the NCC was LE. We herein report a rare case of PFE in the LVOT and coexisting LE on the NCC. A careful examination via TEE helps to identify other possible causes of stroke hidden behind the obvious cause.


Assuntos
Fibroelastoma Papilar Cardíaco , Neoplasias Cardíacas , Doenças das Valvas Cardíacas , Acidente Vascular Cerebral , Masculino , Humanos , Idoso , Doenças das Valvas Cardíacas/complicações , Fibroelastoma Papilar Cardíaco/complicações , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Valva Aórtica/patologia , Acidente Vascular Cerebral/complicações , Ecocardiografia Transesofagiana , Neoplasias Cardíacas/diagnóstico , Neoplasias Cardíacas/diagnóstico por imagem
9.
BMJ Open ; 14(3): e067977, 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38508639

RESUMO

OBJECTIVES: The objective of this study was to develop clinical classifiers aiming to identify prevalent ascending aortic dilatation in patients with bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV). DESIGN AND SETTING: A prospective, single-centre and observational cohort. PARTICIPANTS: The study involved 543 BAV and 491 TAV patients with aortic valve disease and/or ascending aortic dilatation, excluding those with coronary artery disease, undergoing cardiothoracic surgery at the Karolinska University Hospital (Sweden). MAIN OUTCOME MEASURES: Predictors of high risk of ascending aortic dilatation (defined as ascending aorta with a diameter above 40 mm) were identified through the application of machine learning algorithms and classic logistic regression models. EXPOSURES: Comprehensive multidimensional data, including valve morphology, clinical information, family history of cardiovascular diseases, prevalent diseases, demographic details, lifestyle factors, and medication. RESULTS: BAV patients, with an average age of 60.4±12.4 years, showed a higher frequency of aortic dilatation (45.3%) compared with TAV patients, who had an average age of 70.4±9.1 years (28.9% dilatation, p <0.001). Aneurysm prediction models for TAV patients exhibited mean area under the receiver-operating-characteristic curve (AUC) values above 0.8, with the absence of aortic stenosis being the primary predictor, followed by diabetes and high-sensitivity C reactive protein. Conversely, prediction models for BAV patients resulted in AUC values between 0.5 and 0.55, indicating low usefulness for predicting aortic dilatation. Classification results remained consistent across all machine learning algorithms and classic logistic regression models. CONCLUSION AND RECOMMENDATION: Cardiovascular risk profiles appear to be more predictive of aortopathy in TAV patients than in patients with BAV. This adds evidence to the fact that BAV-associated and TAV-associated aortopathy involves different pathways to aneurysm formation and highlights the need for specific aneurysm preventions in these patients. Further, our results highlight that machine learning approaches do not outperform classical prediction methods in addressing complex interactions and non-linear relations between variables.


Assuntos
Aneurisma , Doenças da Aorta , Doença da Válvula Aórtica Bicúspide , Doenças das Valvas Cardíacas , Humanos , Pessoa de Meia-Idade , Idoso , Valva Aórtica/cirurgia , Doenças das Valvas Cardíacas/complicações , Doenças das Valvas Cardíacas/cirurgia , Estudos Prospectivos , Dilatação , Doenças da Aorta/complicações
10.
Leg Med (Tokyo) ; 68: 102431, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38460208

RESUMO

Mitral annular calcification (MAC) is a chronic and degenerative condition involving calcification of the mitral annulus. MAC is a risk factor for coronary artery disease, cardiovascular events, stroke, and cardiovascular death. However, patients with MAC are often asymptomatic. Herein, we present the first case of cardiac tamponade due to infection of MAC in forensic pathology. An 80-year-old woman was found in cardiopulmonary arrest shortly after experiencing fatigue. She was transferred to a hospital, and despite chest compression and ventilation, she was pronounced dead due to no response. Postmortem computed tomography, autopsy, and histological examination showed MAC, abscess formation involving Gram-positive cocci on the MAC, and fistulation of the abscess into the intracardial pericardial cavities, resulting in a massive lethal hemopericardium.


Assuntos
Autopsia , Calcinose , Valva Mitral , Derrame Pericárdico , Humanos , Feminino , Idoso de 80 Anos ou mais , Calcinose/patologia , Calcinose/complicações , Valva Mitral/patologia , Derrame Pericárdico/patologia , Evolução Fatal , Tamponamento Cardíaco/etiologia , Doenças das Valvas Cardíacas/patologia , Doenças das Valvas Cardíacas/complicações , Patologia Legal/métodos , Abscesso/patologia , Abscesso/complicações , Parada Cardíaca/etiologia
13.
BMJ Open ; 14(2): e076688, 2024 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-38326254

RESUMO

INTRODUCTION: Atrial fibrillation (AF) is a significant cause of perioperative stroke in aortic and mitral valve surgeries. Although several large studies have evaluated surgical left atrial appendage occlusion (SLAAO) during cardiac surgeries, their retrospective nature and an uncontrolled broad spectrum of conditions leave them subject to potential residual confounding. This trial aims to test the hypothesis that opportunistic SLAAO can prevent long-term stroke after cardiac surgery in patients receiving mitral or aortic valve surgeries without a history of AF and with a CHA2DS2-VASc score of 2 or higher. METHODS AND DESIGN: This study is a single-blinded, multicentre, randomised controlled trial. A total of 2118 patients planning to undergo aortic or mitral surgery without AF will be recruited and equally randomised into intervention or control arms at a 1:1 ratio. In the intervention arm, suture excision of the left atrial appendage (LAA) will be performed during the operation in addition to the original surgery plan. In the control arm, the operation will be performed according to the surgery plan without any intervention on the LAA. The primary outcome is a composite of newly occurred ischaemic stroke or transient ischaemic attack and cardiovascular mortality during a 1-year follow-up. Secondary outcomes include postoperative AF, cardiovascular mortality, newly occurred ischaemic stroke, newly occurred transient ischaemic attack, newly occurred haemorrhagic stroke, bleeding events, and AF-associated health utilisation. ETHICS AND DISSEMINATION: The Ethics Committee in Fuwai Hospital approved this study. Patients will give informed consent to the study. An information leaflet will be provided to participating patients to introduce the SLAAO procedure. Patients and the public will not get involved in developing the research hypothesis, study design or any other part of this protocol. We plan to publish several papers in peer-reviewed journals about the current research and these will include a description of the study's development and the main findings of the study. TRIAL REGISTRATION NUMBER: ChiCTR2100042238.


Assuntos
Apêndice Atrial , Fibrilação Atrial , Isquemia Encefálica , Doenças das Valvas Cardíacas , Ataque Isquêmico Transitório , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Fibrilação Atrial/complicações , Fibrilação Atrial/cirurgia , Acidente Vascular Cerebral/prevenção & controle , Acidente Vascular Cerebral/complicações , Ataque Isquêmico Transitório/complicações , Apêndice Atrial/cirurgia , Estudos Retrospectivos , Isquemia Encefálica/complicações , Doenças das Valvas Cardíacas/complicações , Doenças das Valvas Cardíacas/cirurgia , AVC Isquêmico/complicações , Resultado do Tratamento , Anticoagulantes , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Multicêntricos como Assunto
14.
J Cardiothorac Surg ; 19(1): 41, 2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38308340

RESUMO

BACKGROUND: The extent of aortic valve inflammation in patients undergoing aortic valve replacement (AVR) is unsettled. The significance of aortic valve histopathology in patients undergoing AVR is undetermined. METHODS: A total of 145 resected aortic valves of consecutive patients undergoing surgery for a local aortic valve disease with or without ascending aorta were investigated for histopathology. The extent of inflammation and degeneration were investigated. Unadjusted survival was evaluated by Kaplan-Meier analysis. Median follow-up was 2.7 years (interquartile range 1.5-3.9). RESULTS: Mean patient age was 69 (SD 11) years. Though endocarditis was apparent in only six patients preoperatively, severe aortic valve inflammation was diagnosed histologically in 32 patients of whom 12 patients had acute, subacute or chronic endocarditis. Despite complete aortic valve resection, survival was decreased in patients with severe aortic valve inflammation as opposed to those without (log rank, P = 0.044), even after exclusion of patients with endocarditis, emergency and aortic surgery. CONCLUSIONS: Aortic valve tissue analysis reveals severe inflammation that may require postoperative treatment. The association of severe but local aortic valve inflammation with patient outcome after aortic valve surgery merits further investigation.


Assuntos
Endocardite , Doenças das Valvas Cardíacas , Implante de Prótese de Valva Cardíaca , Próteses Valvulares Cardíacas , Humanos , Idoso , Valva Aórtica/cirurgia , Doenças das Valvas Cardíacas/complicações , Resultado do Tratamento , Endocardite/cirurgia , Inflamação , Estudos Retrospectivos
15.
Int J Cardiovasc Imaging ; 40(4): 733-743, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38289428

RESUMO

BACKGROUND: Mitral annular calcification (MAC) poses many challenges to the evaluation of diastolic function using standard echocardiography. Left atrial (LA) strain and left ventricular early diastolic strain rate (DSr) measured by speckle-tracking echocardiography (STE) are emerging techniques in the noninvasive evaluation of diastolic function. We aim to evaluate the utility of LA strain and early DSr in predicting elevated left ventricular filling pressures (LVFP) in patients with MAC and compare their effectiveness to ratio of mitral inflow velocity in early and late diastole (E/A). METHODS: We included adult patients with MAC who presented between January 1 and December 31, 2014 and received a transthoracic echocardiogram (TTE) and cardiac catheterization with measurement of LVFP within a 24-h period. We used Spearman's rank correlation coefficient to assess associations of LA reservoir strain and average early DSr with LVFP. Receiver operating characteristic (ROC) curves were computed to assess the effectiveness of LA strain and DSr in discriminating elevated LVFP as a dichotomized variable and to compare their effectiveness with E/A ratio categorized according to grade of diastolic dysfunction. RESULTS: Fifty-five patients were included. LA reservoir strain demonstrated poor correlation with LVFP (Spearman's rho = 0.03, p = 0.81) and poor discriminatory ability for detecting elevated LVFP (AUC = 0.54, 95% CI 0.38-0.69). Categorical E/A ratio alone also demonstrated poor discriminatory ability (AUC = 0.53, 95% CI 0.39-0.67), and addition of LA reservoir strain did not significantly improve effectiveness (AUC = 0.58, 95% CI 0.42-0.74, p = 0.56). Average early DSr also demonstrated poor correlation with LVFP (Spearman's rho = -0.19, p = 0.16) and poor discriminatory ability for detecting elevated LVFP (AUC = 0.59, 95% CI 0.44-0.75). Addition of average early DSr to categorical E/A ratio failed to improve effectiveness (AUC = 0.62, 95% CI 0.46-0.77 vs. AUC = 0.54, 95% CI 0.39-0.69, p = 0.38). CONCLUSIONS: In our sample, LA reservoir strain and DSr do not accurately predict diastolic filling pressure. Further research is required before LA strain and early DSr can be routinely used in clinical practice to assess filling pressure in patients with MAC.


Assuntos
Função do Átrio Esquerdo , Calcinose , Diástole , Valva Mitral , Valor Preditivo dos Testes , Disfunção Ventricular Esquerda , Função Ventricular Esquerda , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Valva Mitral/fisiopatologia , Valva Mitral/diagnóstico por imagem , Idoso , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/etiologia , Calcinose/fisiopatologia , Calcinose/diagnóstico por imagem , Reprodutibilidade dos Testes , Pressão Ventricular , Cateterismo Cardíaco , Doenças das Valvas Cardíacas/fisiopatologia , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/complicações , Área Sob a Curva , Estudos Retrospectivos , Fenômenos Biomecânicos , Ecocardiografia Doppler
16.
J Am Heart Assoc ; 13(3): e030540, 2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38240203

RESUMO

BACKGROUND: Aortic valve calcium score is associated with hemodynamic severity of aortic stenosis. Whether this association is present in calcific mitral stenosis remains unknown. METHODS AND RESULTS: This study was a retrospective analysis of consecutive patients with mitral stenosis secondary to mitral annular calcification (MAC) undergoing transseptal catheterization. All patients underwent invasive mitral valve assessment via direct left atrial and left ventricular pressure measurement. Computed tomography within 1 year of cardiac catheterization and with adequate visualization of the mitral annulus was included. MAC calcium score quantification by Agatston method was obtained offline using dedicated software (Aquarius, TeraRecon, V.4). Median patient age was 66.9±11.2 years, 47% of patients were women, 50% had coronary artery disease, 40% had atrial fibrillation, 47% had prior cardiac surgery, and 33% had prior chest radiation. Median diastolic mitral valve gradient was 9.4±3.4 mm Hg on echocardiography and 8.5±4 mm Hg invasively. Invasive median mitral valve area using the Gorlin formula was 1.87±0.9 cm2. Median MAC calcium score for the cohort was 7280±7937 Hounsfield units. MAC calcium score correlated with the presence of atrial fibrillation (P=0.02) but was not associated with other comorbidities. There was no correlation between MAC calcium score and mitral valve area (r=0.07; P=0.6) or mitral valve gradient (r=-0.03; P=0.8). CONCLUSIONS: MAC calcium score did not correlate with invasively measured mitral valve gradient and mitral valve area in patients with MAC-related mitral stenosis, suggesting that calcium score should not be used as a surrogate for invasive hemodynamic parameters.


Assuntos
Estenose da Valva Aórtica , Fibrilação Atrial , Calcinose , Doenças das Valvas Cardíacas , Estenose da Valva Mitral , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Masculino , Estenose da Valva Mitral/complicações , Valva Mitral/diagnóstico por imagem , Cálcio , Estudos Retrospectivos , Fibrilação Atrial/complicações , Doenças das Valvas Cardíacas/complicações , Estenose da Valva Aórtica/complicações , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Constrição Patológica , Hemodinâmica , Cateterismo Cardíaco
17.
J Cardiovasc Med (Hagerstown) ; 25(3): 210-217, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38251434

RESUMO

AIMS: Septal myectomy is the treatment of choice for hypertrophic obstructive cardiomyopathy (HOCM). Around 30-60% of patients with HOCM have a secondary mitral valve regurgitation due to systolic anterior motion (SAM). We report our experience with extended septal myectomy and its impact on the incidence of concomitant mitral valve procedures. METHODS: This is a retrospective study on 84 patients who underwent SM from January 2008 to February 2022. Surgical procedure was performed according to the concept of 'extended myectomy' described by Messmer in 1994. Follow-up outcomes in terms of survival, hospital admissions for heart failure or MV disease, cardiac reoperations, and pacemaker (PMK) implantation were recorded. RESULTS: Mean age was 61 ±â€Š15 years. Mitral valve surgery was performed in seven cases (8%); particularly only one patient without degenerative mitral valve disease underwent mitral valve surgery, with a plicature of the posterior leaflet. In-hospital mortality was 5%. Mitral valve regurgitation greater than mild was present in four patients (5%) at discharge. Twelve-year survival was 78 ±â€Š22%. Cumulative incidence of rehospitalization for heart failure and rehospitalization for mitral valve disease was 10 ±â€Š4 and 2.5 ±â€Š2.5%, respectively. PMK implantation was 5% at discharge, with a cumulative incidence of 15 ±â€Š7%. Freedom from cardiac reoperations was 100%. CONCLUSION: Septal myectomy for HOCM is associated with good outcomes. Although concomitant surgery on the mitral valve to address SAM and associated regurgitation has been advocated, these procedures were needed in our practice only in patients with intrinsic mitral valve disease. Adequate myectomy addresses the underlying pathophysiology in most patients.


Assuntos
Cardiomiopatia Hipertrófica , Insuficiência Cardíaca , Doenças das Valvas Cardíacas , Insuficiência da Valva Mitral , Humanos , Pessoa de Meia-Idade , Idoso , Insuficiência da Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/cirurgia , Insuficiência da Valva Mitral/complicações , Valva Mitral/diagnóstico por imagem , Valva Mitral/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Doenças das Valvas Cardíacas/complicações , Cardiomiopatia Hipertrófica/diagnóstico por imagem , Cardiomiopatia Hipertrófica/cirurgia , Cardiomiopatia Hipertrófica/complicações , Insuficiência Cardíaca/complicações
18.
Sci Rep ; 14(1): 2537, 2024 01 30.
Artigo em Inglês | MEDLINE | ID: mdl-38291094

RESUMO

To investigate the instent restenosis rate of sirolimus-coated stents in percutaneous coronary intervention (PCI) and risk factors for in-stent restenosis, patients with unstable angina (UA) caused by coronary artery stenosis were enrolled, and all clinical and imaging data were analyzed. Among 143 enrolled patients with UA aged 35-83 (mean 60.9 ± 10.0) years enrolled, there were 114 (79.7%) male and 29 (20.3%) female patients. Arterial stenosis was present in one coronary artery in 6 (4.2%) patients, in two coronary arteries in 20 (14.0%) patients, in three arteries in 116 (81.1%), and in four coronary arteries in 1 (0.7%) patient. Stenting was successfully performed in all (100%) patients, and 181 stents were deployed. The quantitative flow ratio (QFR) was 0.92 ± 0.03 (range 0.84-0.96) immediately after stenting, and the TIMI was grade 3 in all patients. The diameter of the stents deployed ranged 2.25-4 mm (mean 3.04 ± 0.44) with a length ranging 10 mm to 104 mm (mean 32.73 ± 15.5). Follow-up angiography was performed in all patients with a duration of 1-92 (mean 15.0 ± 18.8) months. Instent restenosis ≥ 50% occurred in 25 (17.5%) patients. In univariate logistic regression analysis, significant (P < 0.05) risk factors for instent restenosis ≥ 50% were QFR (OR 0.036, 95% CI 0.13-0.97), stent diameter (OR 0.43, 95% CI 0.18-0.92), hypertension (OR 3.16, 95% CI 1.02-9.82), smoking (OR 0.31, 95% CI 0.11-0.89), and neutrophil count (OR 2.22, 95% CI 1.10-5.44). In multivariate analysis, QFR (OR 0.02, 95% CI 0.002-0.19), stent diameter (OR 0.06, 95% CI 0.005-0.59), hypertension (OR 6.75, 95% CI 1.83-35.72) and neutrophil count (OR 276.07, 95% CI 12.32-10,959.95) were significant (P < 0.05) independent risk factors for instent restenosis ≥ 50%. In conclusion, certain instent restenosis rates occurs after the sirolimus-eluted coronary stent deployment for the treatment of coronary artery stenosis in patients with UA, and quantitative flow ratio after stenting, stent diameter, hypertension, and neutrophil count are significant risk factors for instent restenosis of the sirolimus-coated stents in coronary intervention.


Assuntos
Reestenose Coronária , Estenose Coronária , Doenças das Valvas Cardíacas , Hipertensão , Intervenção Coronária Percutânea , Humanos , Masculino , Feminino , Sirolimo/uso terapêutico , Intervenção Coronária Percutânea/efeitos adversos , Constrição Patológica/complicações , Angiografia Coronária/efeitos adversos , Resultado do Tratamento , Reestenose Coronária/etiologia , Reestenose Coronária/tratamento farmacológico , Stents/efeitos adversos , Estenose Coronária/complicações , Angina Instável/complicações , Fatores de Risco , Vasos Coronários , Hipertensão/complicações , Doenças das Valvas Cardíacas/complicações
19.
Eur Heart J Cardiovasc Imaging ; 25(3): 425-435, 2024 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-37966276

RESUMO

AIMS: Bicuspid aortic valve (BAV) is a common congenital condition that is frequently associated with aortic stenosis (AS) and aortic regurgitation (AR), as well as aortic aneurysms, but specific outcome data are scarce. The present study sought to assess outcomes in a large cohort of consecutive patients with BAV. METHODS AND RESULTS: A total of 581 consecutive patients (median age 29 years, 157 female) with BAV were included in the study and followed prospectively in a heart valve clinic follow-up programme. The overall survival rate after 10 years was 94.5%. During follow-up, 158 patients developed an indication for surgery. Event-free survival rates were 97%, 94%, 87%, and 73% at 1, 2, 5, and 10 years, respectively. In the multivariable analysis, event rates were independently predicted by AS [subdistribution hazard ratio (SHR) 2.3 per degree of severity], AR (SHR 1.5 per degree of severity), baseline aortic dilatation ≥ 40 mm (SHR 1.9), and age (SHR 1.3) (P < 0.001). CONCLUSION: BAV disease is associated with a high rate of cardiac events, but state-of-the-art care results in good survival with low rates of infective endocarditis, aortic dissection, and sudden death. Incremental degrees of AS and regurgitation, the presence of aortic dilatation, and age are predictive of cardiac events.


Assuntos
Insuficiência da Valva Aórtica , Estenose da Valva Aórtica , Doença da Válvula Aórtica Bicúspide , Doenças das Valvas Cardíacas , Humanos , Feminino , Adulto , Doença da Válvula Aórtica Bicúspide/complicações , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Valva Aórtica/anormalidades , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/complicações , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Estenose da Valva Aórtica/complicações , Insuficiência da Valva Aórtica/diagnóstico por imagem , Insuficiência da Valva Aórtica/cirurgia , Insuficiência da Valva Aórtica/complicações , Estudos Retrospectivos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA