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1.
J Card Surg ; 35(10): 2522-2528, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33043663

RESUMO

BACKGROUND AND AIM: Prosthetic valve thrombosis (PVT) is a rare but life-threatening complication of heart valve replacement. Based on the current guidelines, the treatment of a large number of these patients could be performed through the administration of thrombolytic agents. In the present study, we aim to assess the safety of thrombolytic therapy in patients with PVT who have high international normalized ratio (INR) levels. METHODS: In this study, we retrospectively analyzed outcomes of thrombolytic therapy in 65 PVT patients with different levels of INR at the time of fibrinolysis at a tertiary cardiac center. RESULTS: Mean age of patients was 51.6 ± 12.47 years. The tricuspid valve was the most common site of prosthetic valve thrombosis (64.6%). The Median (range) of INR was 2.1 (0.9-4.9). The majority of patients (50.8%) achieved a complete response following thrombolytic treatment. There were no cases of intracranial hemorrhage. Other major and minor bleedings occurred in 3 (4.6%) and 10 (15.4%) patients, respectively. No embolic stroke and systemic embolism were observed. We found no significant difference in the frequency of major (P-value = .809) and minor (P-value = .483) bleeding as well as response to thrombolytic therapy (P-value = .658) between patients with different levels of INR. Total administered dose of Streptokinase was also similar in PVT patients with or without major (P-value = .467) and minor (P-value = .221) bleeding complications. CONCLUSIONS: We concluded that there was no significant difference between PVT patients presenting with subtherapeutic and high INR levels who received thrombolytic treatments regarding both minor and major bleeding complications as well as response to thrombolysis.


Assuntos
Fibrinolíticos/uso terapêutico , Implante de Prótese de Valva Cardíaca/efeitos adversos , Próteses Valvulares Cardíacas/efeitos adversos , Coeficiente Internacional Normatizado , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/etiologia , Estreptoquinase/uso terapêutico , Terapia Trombolítica/métodos , Trombose/tratamento farmacológico , Trombose/etiologia , Adulto , Feminino , Fibrinolíticos/efeitos adversos , Doenças das Valvas Cardíacas/cirurgia , Valvas Cardíacas/cirurgia , Hemorragia/etiologia , Humanos , Coeficiente Internacional Normatizado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Segurança , Estreptoquinase/efeitos adversos , Terapia Trombolítica/efeitos adversos
2.
Acta Cardiol Sin ; 36(5): 456-463, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32952355

RESUMO

BACKGROUND: Several risk factors have been associated with the development of postoperative atrial fibrillation (AF). However, some important factors that may play substantial roles have been neglected in the final suggested risk models. In this study, we aimed to derive a new clinical risk index to predict AF in coronary artery bypass graft (CABG) patients. METHODS: In this retrospective cohort study we enrolled 3047 isolated CABG patients. A random sample of 2032 patients was used to derive a risk index for the prediction of post-CABG AF. A multivariate logistic regression model identified the independent preoperative predictors of post-CABG AF, and a simple risk index to predict AF was constructed. This risk index was cross-validated in a validation set of 1015 patients with isolated CABG. RESULTS: Post-CABG AF occurred in 15.9% and 15.7% of the patients in the prediction and validation sets, respectively. Using multivariate stepwise analysis, four preoperative variables including advanced age, left atrial (LA) enlargement, hypertension and cerebrovascular accident contributed to the prediction model (area under the receiver operating characteristic curve curve = 0.66). The effect of advanced age appeared to be dominant [age ≥ 75 years; odds ratio: 4.134, 95% confidence interval (CI): 2.791-6.121, p < 0.001]. Moderate to severe LA enlargement had an odds ratio of 2.176 (95% CI: 1.240-3.820, p = 0.013) for developing AF in our risk index. CONCLUSIONS: LA size was an important factor in risk stratification of post-CABG AF, which remained significant in the final model. Future scoring system studies might benefit from the use of this variable to obtain a more robust predictive value.

3.
Cardiology ; 129(3): 199-202, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25342027

RESUMO

OBJECTIVE: To report the prevalence, clinical presentation and histological characteristics of non-myxoma cardiac tumors in a major tertiary heart center. METHOD: Review of the medical profiles of 36,930 patients admitted to our hospital between 2003 and 2013 yielded a total of 86 cases of cardiac tumors (63 cases of myxomas and 23 cases of non-myxoma tumors). Clinical presentations and histological features were presented exclusively for primary and secondary tumors. RESULTS: Of 23 enrolled patients with non-myxoma tumors, 5 had primary tumors and 18 had secondary or metastatic tumors. The most frequent origins of the secondary tumors were breast cancer, lymphoma, leukemia and lung cancer. Most secondary tumors had pericardial involvement, and only one tumor involved the left atrium. Sarcomas, including spindle-cell sarcoma and liposarcoma, comprised the majority of the primary malignant tumors. None of these tumors had pericardial involvement, and, except for one case, all were confined to the left side of the heart. All patients were symptomatic on admission, with dyspnea being the most frequent presenting symptom. CONCLUSION: Metastatic cardiac tumors were more prevalent than the primary ones, with fibromas constituting the largest proportion of the primary tumors and breast cancer being the prevalent cause of metastasis.


Assuntos
Fibroma/diagnóstico , Neoplasias Cardíacas/diagnóstico , Sarcoma/diagnóstico , Adolescente , Adulto , Idoso , Diagnóstico Diferencial , Feminino , Fibroma/epidemiologia , Fibroma/cirurgia , Neoplasias Cardíacas/epidemiologia , Neoplasias Cardíacas/secundário , Neoplasias Cardíacas/cirurgia , Hospitais de Doenças Crônicas , Hospitais Universitários , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Sarcoma/epidemiologia , Sarcoma/secundário , Sarcoma/cirurgia , Resultado do Tratamento
4.
Int J Cardiol Heart Vasc ; 52: 101412, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38694271

RESUMO

Introduction: Reduced left ventricular ejection fraction (LVEF) is a well-known predictor of adverse events after cardiac surgery. We aimed to assess the outcomes in patients with low LVEF undergoing coronary artery bypass graft. Methods: In this retrospective cohort, we included all patients with left ventricular ejection fraction ≤ 40 who underwent coronary artery bypass grafting between March 2007 and March 2016 (with a median follow-up of nine years) at Tehran Heart Center. Demographics and clinical characteristics were extracted from the data registry. Akaike information criterion (AIC) was used. The univariate Cox regression was performed. We investigated the predictors of mortality and major adverse cardiac and cerebrovascular events (MACCE) using Cox multivariable regression. Results: In total, 5,532 cases (79 % male) with a mean age of 65.58 were included in the study. The nine-year overall survival was calculated at 68 %, and more than half of the patients had MACCE (55 %). In adjusted multivariable Cox regression analysis, moderate to severe mitral valve regurgitation, glomerular filtration rate ≤ 60, mild right ventricular dysfunction, and valvular heart disease independently predicted higher mortality. The abovementioned predictors and peripheral vascular disease significantly increased MACCE. Conclusion: Our study indicates the clinical significance of mitral regurgitation, valvular heart disease, and renal function in patients with low ejection fraction treated by coronary artery bypass grafting surgery. Identifying predictors of adverse events can help with clinical decision-making and risk stratification, ultimately improving patient outcomes.

5.
J Tehran Heart Cent ; 17(3): 112-118, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37252087

RESUMO

Background: Transcatheter tricuspid valve-in-valve (TTViV) replacement has become an alternative treatment in high-risk patients with bioprosthetic valve degeneration. This is the first report on the mid to long-term echocardiographic findings of patients who underwent TTViV replacement in a cardiac referral center in Iran. Methods: Data of 12 patients, consisting of 11 women and 1 man, who underwent TTViV replacement between 2015 and 2021 were reviewed retrospectively. The patients underwent echocardiography before the procedure and at a mean follow-up time of 3.17±1.75 years. Results: All the patients had New York Heart Association (NYHA) function class III/IV before TTViV. Six patients had tricuspid regurgitation, 1 had tricuspid stenosis, and 5 had both. All the patients had successful TTViV. The mean time from the initial valve surgery to TTViV was 6.25±2.45 years. At follow-up, 2 patients had died: 1 due to COVID-19 pneumonia and 1 without a known cause. The remaining 10 patients experienced improvements in the NYHA functional class. Echocardiographic measures showed significant improvements. Transvalvular mean gradient pressure decreased from 7.08±1.98 mm Hg to 5.29±1.63 mm Hg (P=0.028), tricuspid valve pressure half time decreased from 245.00±49.46 ms to 158.64±57.41 ms (P=0.011), tricuspid regurgitation gradient decreased from 39.91±7.31 mm Hg to 26.72±8.99 mm Hg, and left ventricular ejection fraction increased from 47.71±4.70% to 49.79±4.58% (P=0.046). There was no significant paravalvular or transvalvular leakage at follow-up. Conclusion: This is a single-center report on the mid and long-term echocardiographic follow-up of patients after TTViV replacement. Our study showed that TTViV was a safe and efficient method in treating high-risk patients with degenerated bioprosthetic tricuspid valves and had favorable echocardiographic and clinical results.

6.
Crit Pathw Cardiol ; 21(2): 77-83, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35311757

RESUMO

BACKGROUND: The efficiency of maze is a safe procedure in AF patients who underwent concomitant mitral valve surgery was more than 60%. The aim of this study was to define predictors of early AF recurrence after concomitant maze procedure with valvular surgery. METHODS: In this retrospective study, 234 patients with AF underwent concomitant valvular replacement and maze procedure. Patients were classified into 2 groups of sinus and atrial fibrillation (AF). Baseline characteristics of patients were then compared between 2 groups. RESULTS: Totally, 234 patients were enrolled, 148 of which maintained sinus rhythm during hospitalization. Left atrial diameter and type of valvular surgery were similar in both groups. Age, number of replaced valves, concomitant coronary artery bypass grafting, and history of preoperative persistent AF and beta-blocker therapy were independent predictors of in-hospital AF recurrence. We used these variables to build a model to anticipate early AF recurrence. CONCLUSIONS: Being older, multivalvular surgery, and persistent preoperative AF were the predictors of higher risk of early recurrent AF, whereas concomitant coronary artery bypass grafting and using beta-blocker had a protective effect. This model based on preoperative and operative characteristics can help us to better evaluate if the patient benefits from maze procedure coincide with valvular surgery.


Assuntos
Fibrilação Atrial , Ablação por Cateter , Fibrilação Atrial/complicações , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/cirurgia , Ablação por Cateter/métodos , Humanos , Procedimento do Labirinto , Recidiva , Estudos Retrospectivos , Resultado do Tratamento
7.
Crit Pathw Cardiol ; 21(1): 36-41, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34919067

RESUMO

BACKGROUND: Postoperative atrial fibrillation (AF) is a common complication after cardiac surgery. We investigated whether perioperative cardiac troponin T (cTnT) is associated with the risk of AF after coronary artery bypass grafting (CABG). METHODS: Two thousand four hundred twenty-one patients with isolated CABG were studied. High sensitivity cTnT (hs-cTnT) was assessed before and then at 80 hour and 24 hour after the operation. Logistic regression models were applied to investigate the association of perioperative hs-cTnT with postoperative AF. The ROC curve analysis was applied to determine the optimal cutoff values. RESULTS: Postoperative AF was occurred in 356 (14.7%) patients. Age (adjusted odds ratio [ORs] 1.087-1.090), male gender (OR 1.390), left atrium size (ORs 1.055-1.111), on-pump coronary bypass (OR 1.561), and application of intra-aortic balloon pump (ORs 2.890-2.966) were independently associated with AF. Preoperative hs-cTnT was associated with AF in patients with off-pump coronary bypass (ORs 1.997-2.375). However, the area under the curve for preoperative hs-cTnT was 0.625 in this group. On-pump coronary bypass had major influence on postoperative hs-cTnT levels regardless of the occurrence of AF. CONCLUSIONS: Preoperative hs-cTnT level is associated with the risk of AF after isolated CABG in patients undergoing off-pump coronary bypass, but the accuracy of this biomarker is yet inadequate. Postoperative levels of hs-cTnT have no predictive value considering large influence by the surgical technique and the cardiac surgery itself. Therefore, perioperative hs-cTnT is not a clinically useful biomarker for predicting AF following CABG.


Assuntos
Fibrilação Atrial , Ponte de Artéria Coronária sem Circulação Extracorpórea , Fibrilação Atrial/diagnóstico , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/etiologia , Biomarcadores , Ponte de Artéria Coronária/efeitos adversos , Ponte de Artéria Coronária sem Circulação Extracorpórea/efeitos adversos , Humanos , Masculino , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Fatores de Risco , Troponina T
8.
Cardiology ; 118(1): 8-15, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21389715

RESUMO

OBJECTIVES: Graft stenosis is a major complication of coronary artery bypass grafting with autologous saphenous vein grafts. Nitric oxide (NO) is believed to prevent this phenomenon. We studied the effect of perivascular application of an NO donor on the degree of stenosis of such grafts in an ovine model. METHODS: Twenty white Iranian ewes were randomized to coronary artery bypass grafting using autologous saphenous vein grafts with application of an elastomer gel containing diethylenetriamine NO adduct in 0.9% sodium chloride solution around the grafted vessel (intervention group) or with the gel containing the saline solution alone (controls). Graft vessels were studied after 1 year using spot angiography and histological examination. RESULTS: The mean degree of stenosis was significantly lower in the intervention group than in the controls as found by histology (92.3 ± 5.5 vs. 80.9 ± 8.3%; p = 0.004). Although the difference in the angiographic score was not significant, the mean score was still lower in the intervention group (9.5 ± 11.3 vs. 12.0 ± 11.8). CONCLUSIONS: Perivascular application of an NO donor was, at least histologically, effective in reducing graft stenosis in our ovine model. This can be a step toward the development of drug-eluting coronary artery bypass grafts.


Assuntos
Fatores Relaxantes Dependentes do Endotélio/administração & dosagem , Oclusão de Enxerto Vascular/prevenção & controle , Óxido Nítrico/administração & dosagem , Veia Safena/transplante , Animais , Ponte de Artéria Coronária , Feminino , Oclusão de Enxerto Vascular/patologia , Nitritos/sangue , Projetos Piloto , Distribuição Aleatória , Veia Safena/patologia , Ovinos , Transplante Autólogo
9.
J Tehran Heart Cent ; 15(3): 131-135, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33552209

RESUMO

Behçet's disease (BD) is a multisystem inflammatory disorder. Physicians should be alerted to the possibility of BD in a patient with a carotid artery pseudoaneurysm and no clear predisposing factor such as neck trauma or surgery. Endovascular repair of carotid pseudoaneurysms is technically feasible with excellent midterm follow-up results. Administration of immunosuppressive therapy before endovascular intervention is mandatory to reduce the chance of vascular complications accompanied by BD. A 40-year-old man presented with a painful and pulsatile neck mass with 2 episodes of transient ischemic attacks. The patient also complained of recurrent urogenital ulcers and aphthous lesions together with painful rashes. Ultrasonography and computed tomography angiography revealed 2 aneurysmal dilations in the left common carotid artery at the bifurcation level. He was referred to a rheumatologist, who made the diagnosis of BD. High-dose corticosteroids and cyclophosphamide were commenced. One week later, 2 overlapping self-expanding stent grafts were deployed. The final angiogram showed no residual endoleak, and the flow of the carotid and cerebral arteries was satisfactory. The patient was discharged with no neurological complications. Follow-up ultrasonography and computed tomography angiography 6 months later showed no endoleak, as well as significant shrinkage of the aneurysm sac.

10.
Ann Vasc Surg ; 23(3): 392-7, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19128935

RESUMO

Nitric oxide (NO) has been shown to prevent neointimal hyperplasia and decrease atherosclerosis in several animal models. It is a major modulator of vascular homeostasis and has vasoprotective effects against atherosclerosis. However, NO-based therapies with such purposes have not been used in the clinical arena. Our objective was to combine a medical grade elastomer and an NO donor, diethylenetriamine NO adduct (DETA/NO), to determine whether its perivascular administration can attenuate atherosclerosis and vascular injury. Aortic intimal injury was produced using paediatric pulmonary valvoplasty catheter in 22 healthy male New Zealand White rabbits, which were fed a high-cholesterol diet for 4 weeks beforehand. A mixture of the elastomer Silastic and DETA/NO was applied locally to cover the aortas in the experiment group. After 6 additional weeks on the high-cholesterol diet, the aortas and blood samples were harvested for pathologic analysis and comparison with the control group. Mean atherosclerosis and vascular injury surface area was 6.68 x 10(5) microm2 in the experiment group, compared with 3.44 x 10(5) microm2 in the controls. However, there was no statistically significant difference in atherosclerotic surface area between the two groups. Perivascular application of the NO donor DETA/NO, in the concentration we used, did not prevent atherosclerosis in high cholesterol-fed rabbits. This finding prompts more careful assessment before possible clinical uses.


Assuntos
Aorta/efeitos dos fármacos , Aterosclerose/prevenção & controle , Dimetilpolisiloxanos , Portadores de Fármacos , Hipercolesterolemia/tratamento farmacológico , Doadores de Óxido Nítrico/farmacologia , Triazenos/farmacologia , Animais , Aorta/lesões , Aorta/patologia , Aterosclerose/etiologia , Aterosclerose/patologia , Cateterismo/efeitos adversos , Colesterol na Dieta , Modelos Animais de Doenças , Formas de Dosagem , Hipercolesterolemia/complicações , Hipercolesterolemia/etiologia , Hipercolesterolemia/patologia , Masculino , Coelhos , Índice de Gravidade de Doença
11.
Med Princ Pract ; 18(4): 300-4, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19494538

RESUMO

OBJECTIVE: The aim of the present study was to investigate the determinant factors of acute renal failure (ARF) after isolated on-pump coronary artery bypass grafting (CABG). SUBJECTS AND METHODS: This was a retrospective study of 13,315 adult patients who underwent isolated CABG with cardiopulmonary bypass (CPB) in Tehran Heart Center from May 2002 to May 2007. The exclusion criteria were age <18, concomitant cardiac and/or noncardiac surgical operations, history of renal failure before surgery, and chronic renal failure requiring dialysis. Preoperative and operative variables were measured, and a multivariate logistic regression model was constructed to identify the independent risk factors for developing renal failure after on-pump CABG. RESULTS: Of the 13,315 patients, 3,347 (25.4%) and 90,883 (74.6%) were females and males, respectively, with a mean age of 58.63 +/- 9.48 years. ARF was detected in 85 (0.6%) of the patients with isolated on-pump CABG. The mean age of the patients was 58.63 +/- 9.48 years, and 25.5% of them were female. The multivariate logistic regression analysis identified age (OR = 1.035; p = 0.002), female gender (OR = 1.622; p = 0.037), history of peripheral vascular disease (PVD) (OR = 2.579; p = 0.042), diabetes mellitus (OR = 1.918; p < 0.001), emergent and urgent surgery (OR = 1.744 and OR = 7.901, respectively; p = 0.003), CPB time >70 min (OR = 1.944; p = 0.007), and intra-aortic balloon pump (IABP) insertion (OR = 10.181; p < 0.001) as the independent risk factors for ARF. CONCLUSION: The data showed that age, female gender, positive history of diabetes and PVD, urgent and emergent surgery, CPB time >70 min, and need for IABP were the independent determinant factors of ARF after on-pump CABG.


Assuntos
Injúria Renal Aguda/etiologia , Ponte de Artéria Coronária/efeitos adversos , Fatores Etários , Idoso , Ponte de Artéria Coronária/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais
12.
J Card Surg ; 23(6): 765-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19017008

RESUMO

Behcet's disease is a multisystem disorder and classified as "vasculitic syndrome with a wide variety of clinical manifestations." Cardiac involvement is very rare but can occur with different presentations including: pericarditis, cardiomyopathy, endocarditis, endomyocardial fibrosis, intracavitary thrombosis, and coronary artery disease. Great vessel involvement is more common. Recurrent Phlebitis, commonly involving large vessels (superior vena cava, inferior vena cava, hepatic veins) and cerebral veins are the sole presentation in this regard. Arterial involvement is expressed by aneurysm or pseudoaneurysmal formation. Due to the wide variety of cardiovascular manifestations and the resulting high mortality, cardiac surgeons should be familiar with this disease. In this paper we review the articles and introduce our four cases presenting with aneurysm of ascending aorta with free aortic insufficiency, aneurysm of descending aorta, pulmonary artery aneurysm, and pseudoaneurysm of aortic arch.


Assuntos
Aneurisma/etiologia , Síndrome de Behçet/complicações , Doenças Cardiovasculares/etiologia , Adulto , Aneurisma/cirurgia , Falso Aneurisma/patologia , Falso Aneurisma/cirurgia , Aneurisma Aórtico/etiologia , Aneurisma da Aorta Abdominal/etiologia , Aneurisma da Aorta Torácica/etiologia , Síndrome de Behçet/diagnóstico , Síndrome de Behçet/fisiopatologia , Síndrome de Behçet/cirurgia , Procedimentos Cirúrgicos Cardíacos , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/cirurgia , Evolução Fatal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Pulmonar/patologia
13.
Tex Heart Inst J ; 35(2): 119-24, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18612488

RESUMO

Our goal was to investigate the safety of single- and double-vessel coronary endarterectomy as an adjunct to coronary artery bypass grafting in patients with diffuse coronary disease. In reviewing the records of 9,443 patients who underwent isolated coronary artery revascularization over a 4-year period, we found 310 patients (3.28%) who underwent concomitant coronary artery endarterectomy, 39 of whom (12.6%) required double endarterectomy (Group 2) and the rest of whom required single endarterectomy (Group 1). Variables of these groups were compared by means of univariate analysis. In Group 1, 76.3% were men, with a mean age of 58.73 +/- 9.36 yr. Regarding postoperative myocardial infarction as evaluated by electrocardiography and the MB isoenzyme of creatine kinase, 13% of the patients in Group 1 and 15.4% in Group 2 were so affected. The early mortality rate was 3.3% in Group 1 and 10.3% in Group 2 (P <0.05). In univariate analysis, the following variables were significant: 3-vessel disease, postoperative atrial fibrillation, dialysis, length of hospital stay, and death. In multivariate analysis of endarterectomized arteries, the vascular combinations most strongly associated with death were left anterior descending coronary artery + right coronary artery and right coronary artery + diagonal. There was no association between endarterectomy of particular vessels and perioperative myocardial infarction. Although coronary endarterectomy has become a safe procedure, adding a 2nd endarterectomy worsens the prognosis dramatically, and surgeons should be especially cautious about such an addition if the 1st endarterectomy is in left anterior descending coronary artery or right coronary artery territory.


Assuntos
Ponte de Artéria Coronária , Doença da Artéria Coronariana/cirurgia , Endarterectomia/métodos , Idoso , Estudos de Coortes , Ponte de Artéria Coronária/efeitos adversos , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/mortalidade , Estudos Transversais , Endarterectomia/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/mortalidade , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
14.
Indian J Med Sci ; 62(8): 314-22, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18711257

RESUMO

BACKGROUND: Survival benefit with intra-aortic balloon pump (IABP) insertion for coronary artery bypass grafting (CABG) patients with left ventricular dysfunction is controversial. The aim of this study was to assess the early results of CABG that predict 30-day mortality and prolonged length of hospital stay (LOS) after isolated CABG and the role of IABP application as a main predictor in patients with an ejection fraction (EF) of 30% or less. MATERIALS AND METHODS: Eight hundred and thirty-three patients who underwent isolated CABG with EF < or = 30% were entered and compared with 10881 patients with EF > 30% as the control group. Demographic and clinical characteristics and postoperative complications were considered. Data were analyzed using the student's t-test and chi-square test for univariate analysis and the analysis of covariance and logistic regression for multivariate analysis. RESULTS: The thirty-day mortality rate (1.6% vs. 0.7%, P P P = 0.002) and prolonged LOS (P = 0.009). Also, urinary tract infection, prolonged ventilation, and renal failure as postoperative complications were statistically more in the group with the application of IABP. CONCLUSION: Low ejection fraction can positively affect thirty-day mortality and prolonged LOS and ICU stay in patients who undergo CABG. In these patients, IABP insertion is a strong predictor for early complication and mortality.


Assuntos
Ponte de Artéria Coronária , Balão Intra-Aórtico , Disfunção Ventricular Esquerda/cirurgia , Análise de Variância , Estudos de Casos e Controles , Ponte de Artéria Coronária/mortalidade , Feminino , Humanos , Unidades de Terapia Intensiva , Balão Intra-Aórtico/mortalidade , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Curva ROC , Fatores de Risco , Resultado do Tratamento , Disfunção Ventricular Esquerda/mortalidade
15.
J Tehran Heart Cent ; 13(2): 88-98, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30483320

RESUMO

Endovascular treatment of aortic diseases has improved in recent years. More complex thoracoabdominal and juxtarenal abdominal aortic aneurysms can now be treated with new stent grafts and techniques. Fenestrated endovascular aortic aneurysm repair (FEVAR) with fenestrated stent grafts was commenced in our center after hundred cases of endovascular aortic repair, and so far 4 serial complex cases deemed inoperable (2 juxtarenal abdominal aortic aneurysms, 1 thoracoabdominal aneurysm, and 1 thoracoabdominal pseudoaneurysm) have been treated with FEVAR. All these patients needed custom-made stent grafts, which were designed and implanted successfully under general anesthesia in the catheterization laboratory. They were followed up for more than 1 year, with a median follow-up period of 23.0 months. There were no major in-hospital or short-term complications. Only 1 patient had midterm unilateral iliac artery thrombosis, which was successfully managed interventionally. Computed tomography angiography at 1 year's follow-up showed that the stent grafts were patent and their visceral branch cover stents had no endoleak.

16.
Arch Med Res ; 38(4): 417-23, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17416289

RESUMO

BACKGROUND: The purpose of this study was to determine the factors that can help predict risk of mortality in the first 24 h of coronary artery bypass grafting (CABG), because mortality within a few hours of surgery is a disastrous event for surgeons and the patient's family. METHODS: The study population consisted of 120 in-hospital mortality cases (1.07%) from 11,183 patients who underwent CABG from February 2002 to February 2006 by the same group of surgeons in a referral center. One group consisted of 40/120 (about 33.3%) patients who died during the first 24 h after surgery. The second group consisted of 80/120 patients (66.7%) who died between the 2(nd) and 30(th) day postoperatively. A set of data was gathered from the surgery database of the hospital and analyzed in a univariate model. RESULTS: Among the studied variables, only the following factors proved to be significant: previous percutaneous transluminal coronary angioplasty (PTCA), previous cerebrovascular accident (CVA), cardiopulmonary bypass (CBP) time, and postoperative atrial fibrillation (AF) (p

Assuntos
Ponte de Artéria Coronária/mortalidade , Doença das Coronárias/cirurgia , Mortalidade Hospitalar , Idoso , Feminino , Humanos , Irã (Geográfico) , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Risco
17.
BMC Infect Dis ; 7: 112, 2007 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-17888179

RESUMO

BACKGROUND: Sternal wound infection (SWI) is an uncommon but potentially life-threatening complication of cardiac surgery. Predisposing factors for SWI are multiple with varied frequencies in different studies. The purpose of this study was to assess the incidence, risk factors, and mortality of SWI after coronary artery bypass grafting (CABG) at Tehran Heart Center. METHODS: This study prospectively evaluated multiple risk factors for SWI in 9201 patients who underwent CABG at Tehran Heart Center between January 2002 and February 2006. Cases of SWI were confirmed based on the criteria of the Centers for Disease Control and Prevention. Deep SWI (bone and mediastinitis) was categorized according to the Oakley classification. RESULTS: In the study period, 9201 CABGs were performed with a total SWI rate of 0.47 percent (44 cases) and deep SWI of 0.22 percent (21 cases). Perioperative (in-hospital) mortality was 9.1% for total SWI and about 14% for deep SWI versus 1.1% for non-SWI CABG patients. Female gender, preoperative hypertension, high functional class, diabetes mellitus, obesity, prolonged intubation time (more than 48 h), and re-exploration for bleeding were significant risk factors for developing SWI (p = 0.05) in univariate analysis. In multivariate analysis, hypertension (OR = 10.7), re-exploration (OR = 13.4), and female gender (OR = 2.7) were identified as significant predictors of SWI (p < 0.05 for all). The rate of SWI was relatively similar in 3 groups of prophylactic antibiotic regimen (Cefazolin, Cefazolin + Gentamycin and Cefazolin + Amikacin: 0.5%, 0.5%, and 0.34% respectively). CONCLUSION: Rarely reported previously, the two risk factors of hypertension and the female gender were significant risk factors in our study. Conversely, some other risk factors such as cigarette smoking and age mentioned as significant in other reports were not significant in our study. Further studies are needed for better documentation.


Assuntos
Ponte de Artéria Coronária/efeitos adversos , Infecção da Ferida Cirúrgica/epidemiologia , Institutos de Cardiologia , Estudos de Casos e Controles , Diabetes Mellitus , Hospitais Especializados , Hipertensão , Incidência , Irã (Geográfico)/epidemiologia , Mediastinite/epidemiologia , Mediastinite/etiologia , Mediastinite/mortalidade , Obesidade , Osteíte/epidemiologia , Osteíte/etiologia , Osteíte/mortalidade , Estudos Prospectivos , Fatores de Risco , Fatores Sexuais , Classe Social , Esterno/cirurgia , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/mortalidade
18.
J Tehran Heart Cent ; 12(1): 42-45, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28469693

RESUMO

A ruptured sinus of Valsalva aneurysm rarely accompanies the aortic and tricuspid valve endocarditis. A 36-year-old woman presented with low-threshold dyspnea on exertion and fever. Transthoracic and transesophageal echocardiography showed a ruptured noncoronary sinus of Valsalva aneurysm with large vegetations on the tricuspid and aortic valves, resulting in moderately severe tricuspid regurgitation and severe aortic regurgitation. Blood culture was negative. The patient was initially treated with antibiotics and then subjected to the surgical repair of the sinus of Valsalva aneurysm and the tricuspid and aortic valve replacement. The patient's postoperative period was uneventful, and she was discharged healthy.

19.
Int J Cardiol ; 230: 64-69, 2017 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-28038812

RESUMO

BACKGROUND: Adults with congenital heart disease (CHD) face unique life courses and challenges that may negatively influence their psychological functioning. The aims of this study were to (1) examine the level of hopelessness among adults with CHD in comparison with non-CHD participants and (2) identify correlates of elevated hopelessness among adults with CHD. METHODS: We enrolled 347 patients with CHD (18-64years, 52.2% female) and 353 matched (by sex/age) non-CHD persons in this cross-sectional study. Hopelessness was assessed by Beck Hopelessness Scale. Hierarchical multiple logistic regression analyses were performed to explore correlates of elevated hopelessness. RESULTS: The mean total hopelessness score did not significantly differ between the CHD and non-CHD groups. Twenty-eight percent of CHD patients had elevated hopelessness scores. Within the CHD patient sample, regression analyses revealed that being male (odds ratio=2.62), not having children (odds ratio=3.57), being unemployed (odds ratio=2.27), and elevated depressive symptoms (odds ratio=1.21) were significantly associated with hopelessness. Regular physical activity (odds ratio=0.36) emerged as a protective factor and all CHD disease parameters were unrelated to hopelessness. The final model explained 43% of the variance in hopelessness. CONCLUSIONS: Adult CHD teams are encouraged to continue to explore strategies to support patients to live as rich and full as lives as possible by pursuing relationships, employment and physical activity, as well as managing depression and hopelessness.


Assuntos
Transtorno Depressivo/epidemiologia , Cardiopatias Congênitas/psicologia , Esperança , Adulto , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Irã (Geográfico) , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Fatores Socioeconômicos , Adulto Jovem
20.
J Cardiovasc Thorac Res ; 9(3): 152-157, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29118948

RESUMO

Introduction: After early successful experience with transcatheter aortic valve replacement (TAVR), concept of transcatheter implantation of a new valve within a failing bioprosthetic valve emerged. Valve-in-valve (ViV) implantation seems to be a simpler option for high risk surgical patients. Methods: We performed five ViV procedures in different valve positions. We included patients with failing bioprosthetic valves with high surgical risk due to concomitant comorbidities. We performed 2 transapical ViV procedures for failing mitral bioprosthetic valves, 1 transfemoral procedure for failing pulmonary valve and 2 transfemoral ViV implantation for failing tricuspid bioprosthetic valves. Results: The procedures were successfully completed in all 5 cases with initial excellent fluoroscopic and echocardiographic verification. There was no valve embolization or paravalvular leakage in any of the cases. Transcatheter valve function was appropriate with echocardiography. Post procedural clinical adverse events like pleural effusion and transient ischemic attack were managed successfully. In midterm follow up all cases remained in appropriate functional class except from the transcatheter pulmonary valve which became moderately stenotic and regurgitant. Conclusion: As the first Iranian all-comers case series with midterm follow up for ViV implantation, we had no mortality. Interestingly none of our patients had neurologic sequelae after the procedure. Midterm follow up for our patients was acceptable with good functional class and appropriate echocardiographic findings. Due to high surgical risk of the redo procedure after failing of a bioprosthetic valve especially in elderly patients with comorbidities, ViV implantation would be a good alternative to surgery for this high risk group.

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