Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 44
Filtrar
1.
J Phys Chem A ; 127(30): 6222-6226, 2023 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-37490580

RESUMO

The properties of the complexes I-@C60(OH)20 and I-@C60(OH)30 have been determined using the quantum chemical DFT PBE0 method to assess the possibility of synthesis of highly hydroxylated fullerene endo-iodides for the use in radiotherapy of different organs. The arrangement of the hydroxyl groups corresponds to the location of halogen atoms in (D5d)-C60F20 and (D3d)-C60Cl30. Negative-charged iodine is localized in the center of the fullerene cavity and has no significant influence on the IR spectra of hydroxylated fullerenes. The exothermic effect of iodide anion encapsulation in C60(OH)n (0.33 eV at n = 20; 0.03 eV at n = 30) is smaller than in C60 (0.78 eV). The energies of the lower excited singlet states computed by the TD DFT method for I-@C60(OH)n (2.11 eV at n = 20; 1.77 eV at n = 30) are larger than those for I-@C60 (1.36 eV). They indicate a low reactivity, making it possible to synthesize such complexes for medical use.

2.
Ter Arkh ; 95(4): 327-334, 2023 May 31.
Artigo em Russo | MEDLINE | ID: mdl-38158981

RESUMO

Diagnosis and treatment of myocarditis can be challenging, including determining indications for heart transplantation. We present a 6-year medical history of a 54 years old patient with severe morphologically verified viral-negative lymphocytic myocarditis and systemic manifestations (onset of hemorrhagic vasculitis) combined with moderate coronary atherosclerosis, which regressed according to repeated coronary angiography. For 5 years, the patient received immunosuppressive therapy with methylprednisolone and azathioprine with a significant improvement. Repeated relapses of atrial fibrillation required correction of basic therapy and plasmapheresis. The disease was complicated by thyrotoxicosis and multi-organ dysfunction; the autopsy showed persistent myocarditis activity. The myocarditis is a chronic condition and requires a review of the treatment strategy at each stage.


Assuntos
Miocardite , Viroses , Humanos , Pessoa de Meia-Idade , Miocardite/diagnóstico , Miocardite/etiologia , Miocardite/terapia , Miocárdio , Imunossupressores/uso terapêutico , Biópsia , Azatioprina
3.
Kardiologiia ; 61(7): 85-92, 2021 Jul 31.
Artigo em Russo | MEDLINE | ID: mdl-34397346

RESUMO

The article focuses on ultrasound diagnosis of cardiac tumors (CT). In recent time, the frequency of detecting cardiac neoplasm has been growing. Correct diagnosis at an early stage of the process would allow timely treatment. Before the introduction of two-dimensional echocardiography (EchoCG), life-time diagnosis of CT was very rare. This article describes major echocardiographic criteria for most common benign, malignant, and metastatic CTs. The article is illustrated with original echocardiographic images.


Assuntos
Ecocardiografia , Neoplasias Cardíacas , Neoplasias Cardíacas/diagnóstico por imagem , Humanos
4.
Ter Arkh ; 92(12): 10-18, 2020 Dec 15.
Artigo em Russo | MEDLINE | ID: mdl-33720567

RESUMO

AIM: To analyze the register of pericarditis in a therapeutic clinic, to evaluate their nosological spectrum, to optimize approaches to diagnosis and treatment. MATERIALS AND METHODS: For the period 20072018, the register includes 76 patients with the diagnosis of pericarditis (average age 53.115.7 years, 2085 years, 46 female). Patients with hydropericardium were not included in the register. Diagnostic puncture of pericardium was carried out in 5 patients, pleural puncture in 11 patients. Morphological diagnostics included endomyocardial/ intraoperative biopsy of myocardium (n=4/2), thoracoscopic/intraoperative biopsy of pericardium (n=1/6), pleural puncture (n=5), transbronchial (n=1), thoracoscopic biopsy of intrathoracic lymph nodes (n=2), lung (n=1), supraclavicular lymph node biopsy (n=1), salivary gland (n=1), subcutaneous fat and rectum biopsy per amyloid (n=6/1). The genome of cardiotropic viruses, level of anti-heart antibodies, C-reactive protein, antinuclear factor, rheumatoid factor (antibodies to cyclic citrullinized peptide), antibodies to neutrophil cytoplasm were determined, extractable nuclear antigens (ENA), protein immunoelectrophoresis, diaskin test, computed tomography of lungs and heart, cardiac magnetic resonance imaging, oncologic search. RESULTS: The following forms of pericarditis were verified: tuberculosis (14%, including in combination with hypertrophic cardiomyopathy HCM), acute / chronic viral (8%) and infectious immune (38%), including perimyocarditis in 77%, pericarditis associated with mediastinum lymphoma/sarcoma (4%), sarcoidosis (3%), diffuse diseases of connective tissue and vasculitis (systemic lupus erythematosus, rheumatoid arthritis, diseases of Horton, Takayasu, Shegren, Wegener, 12%), leukoclastic vasculitis, Loefflers endomyocarditis, AL-amyloidosis, thrombotic microangiopathy (1% each), HCM (8%), coronary heart disease (constriction after repeated punctures and suppuration; postinfection and immune, 4%), after radiofrequency catheter ablation and valve prosthetics (2%). Tuberculosis was the main causes of constrictive pericarditis (36%). Treatment included steroids (n=39), also in combination with cytostatics (n=12), anti-tuberculosis drugs (n=9), acyclovir/ganclovir (n=14), hydroxychloroquine (n=23), colchicine (n=13), non-steroidal anti-inflammatory drugs (n=21), L-tyroxine (n=5), chemotherapy (n=1). In 36 patients different types of therapy were combined. Treatment results observed in 55 patients. Excellent and stable results were achieved in 82% of them. Pericardiectomy/pericardial resection was successfully performed in 8 patients. Lethality was 13.2% (10 patients) with an average follow-up 9 [2; 29.5] months (up to 10 years). Causes of death were chronic heart failure, surgery for HCM, pulmonary embolism, tumor. CONCLUSION: During a special examination, the nature of pericarditis was established in 97% of patients. Morphological and cytological diagnostics methods play the leading role. Tuberculosis pericarditis, infectious-immune and pericarditis in systemic diseases prevailed. Infectious immune pericarditis is characterized by small and medium exudate without restriction and accompanying myocarditis. Steroids remain the first line of therapy in most cases. Hydroxychloroquine as well as colchicine can be successfully used in moderate / low activity of immune pericarditis and as a long-term maintenance therapy after steroid stop.


Assuntos
Derrame Pericárdico , Pericardite Constritiva , Pericardite Tuberculosa , Pericardite , Feminino , Humanos , Pessoa de Meia-Idade , Pericardiectomia , Pericardite/diagnóstico , Pericardite/etiologia , Pericardite/terapia
5.
Kardiologiia ; 59(1): 69-78, 2019 Jan 28.
Artigo em Russo | MEDLINE | ID: mdl-30710992

RESUMO

PURPOSE OF THE STUDY: Evaluation of the value of the results of the use of cardiac functional examination methods for the stratification of the risk of developing cardiovascular complications in planned abdominal surgical interventions in patients over 65 years of age or with cardiac pathology. MATERIALS AND METHODS: The study included 179 patients over 65 years of age or with a history of heart disease who underwent elective abdominal surgery. The median age was 70 years. During the operation and for 30 days after it, cardiac complications were recorded: severe (myocardial infarction, stroke, death from cardiovascular disease), others (strokes of exertional angina, ischemic dynamics of the ST segment on the electrocardiogram - ECG - rest, paroxysmal fibrillation / flutter atrial). All patients underwent basic examination - examination, anamnesis, ECG, blood test, assessment of respiratory function, ECG monitoring. Additionally, echocardiography (EchoCG) and ergospirometry (ESM) were performed. RESULTS: In 30 (16.8 %) patients, various MTRs were detected: 6 (3.4 %) of fatal myocardial infarctions, 2 (1.1 %) of fatal strokes; 3 (1.7 %) cases of sudden cardiac death, angina attacks were recorded in 4 (2.2 %) patients, 7 (3.9 %) had ischemic ECG dynamics, 11 (6.1 %) had fibrillation episodes or atrial flutter. Chronic obstructive pulmonary disease, intervention on the colon, blood hemoglobin level <100 g / l, serum creatinine >103 µmol / l, presence of any pathological changes in the resting ECG were associated with the development of SSO; according to EchoCG - VTI (linear velocity integral) in the outflow tract of the left ventricle (LV) <21.5 cm, volume of the left atrium> 57 ml, global LV myocardial deformity is less than 18 %, increase in heart rate (HR) at the 1st minute load test> 27 %, peak oxygen consumption at ESM <15.8 ml / kg / min. The optimal plan for preoperative examination in men is to perform a basic model, and for women it is advisable to combine a basic examination with an ESM or an assessment of the degree of myocardial deformity using the speckle-tracking method for EchoCG. CONCLUSION: The risk of perioperative MTS during planned abdominal operations in patients older than 65 years or with a history of heart disease is relatively high - 16.8 %. When assessing the risk associated with the operation, it is advisable to additionally conduct echocardiography with VTI assessment in the LV outflow tract and myocardial deformity indicators, as well as ESM with the determination of HR increase in the 1st minute of the test and peak oxygen consumption.


Assuntos
Cardiopatias , Infarto do Miocárdio , Idoso , Ecocardiografia , Eletrocardiografia , Feminino , Humanos , Masculino , Prognóstico
6.
Ter Arkh ; 91(4): 99-106, 2019 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-31094483

RESUMO

Loeffler's endocarditis remains is a very rare disease, develops due to eosinophilic inflammation predominantly of the endocardium with an outcome in fibrosis and massive thrombus formation and. He is generally characterized by an unfavorable prognosis. Clinical case of a 42-year-old patient with Loeffler endocarditis is presented. The development of the disease was preceded by a polyvalent allergy, mild dry eye syndrome and pansinusitis with a single eosinophilia of blood up to 16%. The reason for the hospitalization was the appearance of biventricular heart failure. During the previous year, the level of blood eosinophils remained normal, a threefold increase in the level of eosinophilic cationic protein was observed once. A 20-fold increase in the pANCA level, a 2.5-fold increase in the level of antibodies to DNA, an antibody to the nuclei of cardiomyocytes 1:160 were detected. The diagnosis was made on the basis of electrocardiography data (low QRS voltage, atrial hypertrophy), echocardiography, multispiral computed tomography and magnetic resonance imaging of the heart (thickening and delayed contrasting of the endocardium, massive thrombosis of the left ventricular apex with obliteration of its cavity, encapsulated fluid in the pericardium with compression of the right ventricle). Systolic dysfunction, severe signs of restriction and arrhythmias were absent. Trombectomy, tricuspid valve plasty, pericardial resection, suturing of an open oval window were performed. Signs of active inflammation with single eosinophils, vasculitis, perimuscular sclerosis, endocardial sclerosis were detected in morphological and immunohistochemical studies of endo-, myo-, pericardium. Viral genome was not found. The therapy with methylprednisolone 24 mg/day, azathioprine 75 mg/day was started. Six months after the operation, the symptoms of heart failure are completely absent, the thrombosis did not recur.


Assuntos
Anticorpos Anticitoplasma de Neutrófilos/efeitos dos fármacos , Azatioprina/uso terapêutico , Síndrome Hipereosinofílica/tratamento farmacológico , Síndrome Hipereosinofílica/cirurgia , Metilprednisolona/uso terapêutico , Miocardite , Adulto , Ecocardiografia , Eletrocardiografia , Humanos , Síndrome Hipereosinofílica/diagnóstico , Masculino , Resultado do Tratamento
7.
Ter Arkh ; 89(12): 15-27, 2017.
Artigo em Russo | MEDLINE | ID: mdl-29411756

RESUMO

AIM: To investigate whether intravenous contrast-enhanced multislice spiral computed tomography (computed tomography) (MSCT) versus myocardial morphological examination can diagnose myocarditis and the non-inflammatory causes of dilated cardiomyopathy (DCM) and evaluate prognosis in patients with the latter. SUBJECTS AND METHODS: A study group consisted of 130 patients, including 95 men (46.8±11.9 years), with DCM (mean left ventricular (LV) end-diastolic dimension (EDD), 6.6±0.8 cm; mean LV ejection fraction (EF), 29.8±9.3%; NYHA functional class (FC) III (II; III)). All the patients underwent intravenous contrast-enhanced 320-slice CT of the heart; myocardial morphological examination was made in 48 patients (endomyocardial biopsy in 29 patients, intraoperative biopsy in 7, and autopsy in 9, and study of the explanted heart in 3). In addition, cardiotropic viral DNA in the blood and myocardium and the level of anticardiolipin antibodies were determined; echocardiography (in all the patients), scintigraphy (n = 45), magnetic resonance imaging (MRI) (n = 21), and coronary angiography (CG) (n = 46), and a genetic consultation were performed. A comparison group comprised 20 patients, including 14 men (69.3±9.2 years), with coronary atherosclerosis (40% or more stenoses) according to MSCT findings in the absence of criteria for DCM (mean LV EDD, 4.8±0.5 cm; mean LV EF, 59.4±4.6%). RESULTS: Morphological/comprehensive examination showed that myocarditis as a cause of DCM was diagnosed in 76 (65%) patients; its concurrence with genetic cardiomyopathies was in 17 more patients (17%). MSCT of the heart revealed lower accumulation areas in 2 (1.5%) patients (type 1 based on the proposed rating scale), delayed myocardial contrast agent accumulation (DMCAA) in 81 (62.3%): subendocardial accumulation (type 2) in 8, intramyocardial accumulation in 4 (type 3), subepicardial accumulation in 52 (type 4), and transmural accumulation in 15 (type 5); DMCAA was not noted in 49 patients. DMCAA was not found in the comparison group. As compared with biopsy, the sensitivity, specificity, predictive value of positive and negative results of the tests in detecting active myocarditis for all the types of DMCAA were 77.4, 47.1, 72.7, and 53.3%, respectively; those for types 3-5 of DMCAA were 77.4, 52.9, 75.0, and 56.3%; those in detecting all the morphological types of myocarditis were 68.3, 28.6, 84.8, and 13.3%, and those for types 3-5 were 65.9, 28.6, 84.4, and 12.5%, respectively. Comparison of the data of MSCT and those of comprehensive examination in all the patients with DCM, the diagnostic significance in detecting myocarditis for all the types of DMCAA was 70.6, 67.9, 88.9 and 38.8%, respectively; that for DMCAA types 3-5 was 60.8, 67.9, 87.3, and 32.3%. In the study group, MSCT also identified the non-compacted myocardium (n = 31 (23.8%)), coronary atherosclerosis (n = 31 (23%)), which is confirmed by CG findings in 15 patients. The patients with DMCAA significantly more frequently showed a relationship with previous infection, acute onset, significantly higher NYHA FCs, end-diastolic and end-systolic LV volumes, and insignificantly lower LV EF. During a mean follow-up periods of 12 (6; 37.25) months, the overall mortality rate was 17.7% (23 deaths); the death + transplantation index was 20% (n = 26). All the types of DMCAA were found to be significantly related to prognosis: in the DMCAA group, the mortality rate was 21.5% versus 7.8% in the non-DMCAA group (odds ratio 3.22; 95% confidence interval, 1.02 to 10.21; p < 0.05). CONCLUSION: MSCT with the assessment of delayed contrast enhancement (and simultaneous CT coronary angiography) can be used for the non-invasive diagnosis of myocarditis in patients with DCM, including that in the presence of contraindications to MRI. DMCAA correlates with the presence of myocarditis, its activity, the degree of functional disorders, and prognosis.


Assuntos
Cardiomiopatia Dilatada , Coração , Miocardite , Miocárdio/patologia , Tomografia Computadorizada Espiral/métodos , Adulto , Idoso , Biópsia/métodos , Cardiomiopatia Dilatada/diagnóstico , Cardiomiopatia Dilatada/fisiopatologia , Angiografia Coronária/métodos , Diagnóstico Diferencial , Ecocardiografia/métodos , Feminino , Coração/diagnóstico por imagem , Coração/fisiopatologia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Miocardite/diagnóstico , Miocardite/fisiopatologia , Gravidade do Paciente , Prognóstico , Reprodutibilidade dos Testes
8.
Klin Med (Mosk) ; 93(9): 16-9, 2015.
Artigo em Russo | MEDLINE | ID: mdl-27008737

RESUMO

UNLABELLED: Differential diagnostics of apnea regarded as an equivalent to angina or a manifestation of cardiac failure in patients with permanent electrocardiostimulation (PECS) encounters difficulties. Stress-EchoCG is the most adequate method of programmed high-frequency cardiac stimulation with the implanted pacemaker (PM) for excluding stress-induced myocardial ischemia in patients undergoing continuous stimulation of the right ventricle. The aim of the study was to assess the effectiveness and safety of stress-EchoCG by means of programmed high-frequency cardiac stimulation with the implanted PM for patients with single-chamber PECS and complaints of apnea. MATERIALS AND METHODS: The study included patients with single-chamber PECS in the VVIR mode (rate-responsive pacing), complaints of apnea under physical load, and suspected coronary heart disease. All of them underwent stress-EchoCG by means of programmed high-frequency cardiac pacing with the implanted PM. Positive results of the test served as indications for coronary angiography (CAG). RESULTS: The study included 31 patients. In 24 (77.4%) of them with a pacing rate of 90-120/min disturbances of left ventricular local contractility were induced. 18 patients underwent CAG. 15 (83%) of them had normal coronary arteries while 3 (17%) suffered hemodynamically significant stenosis. In other words, 3 patients presented with angina, in the remaining ones apnea was regarded as a manifestation of heart failure. CONCLUSION: In patients undergoing permanent stimulation of the right ventricle, stress-induced disturbances of left ventricular local contractility may be attributed to constrictive lesions of coronary arteries on the one hand and impaired myocardial perfusion due to disordered physiological sequence of cardiac stimulation on the other hand. Coronary atherosclerosis in patients with positive results of stress-EchoCG needs to be confirmed by CAG.


Assuntos
Apneia/diagnóstico , Ecocardiografia sob Estresse/métodos , Insuficiência Cardíaca/complicações , Marca-Passo Artificial , Idoso , Apneia/etiologia , Diagnóstico Diferencial , Feminino , Insuficiência Cardíaca/terapia , Humanos , Masculino , Reprodutibilidade dos Testes
9.
Kardiologiia ; 53(12): 33-40, 2013.
Artigo em Russo | MEDLINE | ID: mdl-24800479

RESUMO

AIM: To specify the prognostic value of parameters of cardiopulmonary exercise testing (CPET) in patients with chronic heart value (CHF) on optimal medical treatment depending on gender, age, left ventricular ejection fraction (LVEF), cardiac rhythm and achievement of target respiratory exchange ratio (RER) > or = 1.0. MATERIALS AND METHODS: 111 patients (83 male, mean age 60.6 +/- 12.8 years) with CHF NYHA class I-III on optimal treatment were included in the study. One third had preserved EF, 27.9%--permanent atrial fibrillation (AFib). Average followup was 19.4 +/- 9.6 months. Prognostic value of CPET indices and Heart Failure Survival Score (HFSS) for cardiovascular mortality (CVM) and combined endpoint including CVM or CHF hospitalization were evaluated using logistic regression analysis. RESULTS: CVM amounted 14.4%, combined endpoint was observed in 46.8% of patients. HFSS had the highest predictive value for CVM (in all subgroups of patients) and for combined endpoint (except patients with AFib). In men, patients younger than 65 years, with reduced LVEF and with Afib CVM was also related to ventilatory indices (VE/VCO2, ventilatory class and PetCO2 peak), and combined endpoint was related to VO2peak and its derivativatives. Only HFSS and VE/VCO2 had prognostic value for CVM in patients with AFib. Ventilatory parameters were associated with combined endpoint in all subgroups except Afib. Blood pressure response and heart rate recovery had prognostic significance only in patients with sinus rhythm. Target RER > or = 1.0 was achieved only in 40.5% patients. In patients with RER < 1.0 significant relationship between VO2 peak and combined endpoint was observed. CONCLUSIONS; Heart Failure Survival Score, VE/VCO2, ventilatory class and PetCO peak are the strongest predictors of cardiovascular mortality and heart failure hospitalizations in all subgroups of patients with CHF. CPET has the highest significance for men, age < 65 years, patients with LVEF < 45% and sinus rhythm. In these subgroups VO2 peak and Weber class have predictive value for decompensation of CHF whether RER > or = 1.0 or not. Blood pressure response and heart rate recovery have prognostic significance only in patients with sinus rhythm.


Assuntos
Fibrilação Atrial/complicações , Teste de Esforço , Insuficiência Cardíaca/diagnóstico , Fatores Etários , Idoso , Fármacos Cardiovasculares/uso terapêutico , Doença Crônica , Teste de Esforço/métodos , Teste de Esforço/estatística & dados numéricos , Feminino , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Moscou/epidemiologia , Valor Preditivo dos Testes , Prognóstico , Índice de Gravidade de Doença , Fatores Sexuais , Volume Sistólico , Análise de Sobrevida
10.
Kardiologiia ; 52(4): 85-94, 2012.
Artigo em Russo | MEDLINE | ID: mdl-22839522

RESUMO

We observed 15 patients with arrhythmogenic right ventricular dysplasia (ARVD): 9 with definite and 5 with probable ARVD (modified European Criteria, 2010). Eight patients had typical ARVD (frequent right ventricular extrasystoles, nonsustained right ventricular tachycardia without heart failure with or without myocarditis). Five patients had ARVD with progressive heart failure (right- or biventricular with or without myocarditis). Two patients had full scale arrhythmic form (sustained right ventricular tachycardia without or with right ventricular dilation, with or without myocarditis). In 3 cases diagnosis was confirmed morphologically or with DNA-diagnostics. This material allowed us to highlight the following specific points related to diagnostics of ARVD. Detection of fat at MRT is not obligatory for diagnosis, fat can be detected by MSCT; ventricular arrhythmias can move backwards in the picture of the disease; leading clinical manifestation can be unexplained right ventricular insufficiency; ARVD can be combined with other genetic cardiomyopathies as well as with infectious immune myocarditis (up to 50% of patients); elevated titer of anticardiac antibodies is not characteristic for isolated ARVD; myocardial biopsy allows to verify both ARVD and concomitant myocarditis. The paper also contains discussion of the role of myocarditis in various forms of ARVD and possibilities of its diagnosis and treatments.


Assuntos
Arritmias Cardíacas , Displasia Arritmogênica Ventricular Direita , Cardioversão Elétrica , Eletrocardiografia/métodos , Disfunção Ventricular Direita , Adulto , Idoso , Arritmias Cardíacas/diagnóstico , Arritmias Cardíacas/etiologia , Arritmias Cardíacas/fisiopatologia , Displasia Arritmogênica Ventricular Direita/diagnóstico , Displasia Arritmogênica Ventricular Direita/genética , Displasia Arritmogênica Ventricular Direita/patologia , Displasia Arritmogênica Ventricular Direita/fisiopatologia , Displasia Arritmogênica Ventricular Direita/terapia , Biópsia , Desfibriladores Implantáveis , Diagnóstico Diferencial , Cardioversão Elétrica/instrumentação , Cardioversão Elétrica/métodos , Feminino , Predisposição Genética para Doença , Testes Genéticos , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Disfunção Ventricular Direita/diagnóstico , Disfunção Ventricular Direita/etiologia , Disfunção Ventricular Direita/patologia , Disfunção Ventricular Direita/fisiopatologia
11.
Kardiologiia ; 52(11): 17-26, 2012.
Artigo em Russo | MEDLINE | ID: mdl-23237392

RESUMO

Noncompaction myocardium (NCM) is a genetic heterogeneous primary cardiomyopathy which affects both children and adults and can be either isolated or combined with other congenital heart disorders. It has common pathogenesis of symptoms but is distinguished by pronounced clinical polymorphism. We have observed 25 adult patients (15 men, 10 women aged from 20 to 62 years, mean age 42.9+/-13.3 years) with NCM syndrome. Heart failure have been found in 96% of patients (functional class [FC] I in 7, II - in 6, III in 7, and IV - in 4 patients). Ninety two percent of patients have ventricular extrasystoles, 32% - atrial fibrillation, 28% - FC I-III angina. Mean end diastolic left ventricular dimension is 6.5+/-0.8cm, ejection fraction 29.7+/-13.0%, mean pulmonary artery pressure - 42.6+/-13.5 mm Hg. Intracardiac thrombosis have been found in 24% of patients. In 7 patients morphological study of myocardium has been performed. NCM syndrome was diagnosed at initial investigation just in 1 case. We distinguished the following clinical masks (variants of diagnosis) of NCM: 1) clinically not manifest, is revealed at accidental examination (4%); 2) exists under mask of "idiopathic" rhythm disturbances (8%); 3) has a mask of ischemic heart disease; 4) is revealed in patients with acute or subacute myocarditis (12%); 5) has a mask of dilated cardiomyopathy (52%); 6) NCM in patients with other primary cardiomyopathies (hypertrophic, restrictive, genetic myopathy, arrhythmogenic right ventricular dysplasia). Combination of NCM with congenital heart defects has been found in 20% of patients. In 56% of cases myocarditis was diagnosed (it was viral in no less than 44%). Only in 32% of patients it is possible to consider presence of isolated NCM syndrome. This paper contains discussion of problems of diagnostics (including morphological) and treatment in the presented group of patients, significance of myocarditis for development of decompensation, role of NCM in patients with other primary cardiomyopathies, possibility of compensatory (secondary) character of NCM in severe systolic dysfunction.


Assuntos
Cardiomiopatias , Fármacos Cardiovasculares/uso terapêutico , Testes de Função Cardíaca/métodos , Imageamento por Ressonância Magnética/métodos , Miocárdio/patologia , Tomografia Computadorizada Espiral/métodos , Adulto , Arritmias Cardíacas/diagnóstico , Arritmias Cardíacas/tratamento farmacológico , Arritmias Cardíacas/etiologia , Biópsia , Cardiomiopatias/classificação , Cardiomiopatias/complicações , Cardiomiopatias/diagnóstico , Cardiomiopatias/tratamento farmacológico , Cardiomiopatias/fisiopatologia , Diagnóstico Diferencial , Gerenciamento Clínico , Eletrocardiografia , Feminino , Cardiopatias Congênitas/complicações , Cardiopatias Congênitas/diagnóstico , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Miocardite/diagnóstico , Miocardite/tratamento farmacológico , Miocardite/etiologia , Prognóstico , Síndrome , Resultado do Tratamento
12.
Ter Arkh ; 84(1): 41-7, 2012.
Artigo em Russo | MEDLINE | ID: mdl-22616531

RESUMO

A case is reported of a 23-year-old male patient who developed, after severe blunt injury of the lumbar region, massive thrombosis of the vena cava inferior (VCI), both renal veins, bilateral pulmonary artery thromboembolism (PATE), nephrotic syndrome (NS). In spite of anticoagulant therapy, the condition of the patient progressively aggravated for 1.5 year: thrombosis involved the ileac and femoral arteries on the right, thrombus floated in the right atrium with PATE recurrent episodes, pulmonary hypertension reached 120 mm Hg with formation of decompensated cor pulmnonale, proteinuria and hypoalbuminemia deteriorated, anasarca edema developed Multigenic thrombophilia was diagnosed (1 homozygous and 5 heterozygous mutations). A radical one-stage operation was successful: thromboectomy from the VCI, right ileac and left renal veins, thrombendarterectomy from the pulmonary arteries, suture of the interatrial septum defect, installation of cava-filter After the operation pulmonary pressure lowered to 40-45 mm Hg, right heart volume normalized, immunosuppressive therapy with prednisolone and cyclosporine led to nephropathy remission. The discussion covers mechanisms and factors (including genetic) of thrombosis progression, correlations between intravascular thrombosis, NS and chronic glomerulonephritis (possible NS development due to bilateral thrombosis of the renal veins and nephropathy role in thrombosis progression), approaches to conservative and surgical treatment of such patients. Global experience in conduction of pulmonary thrombendarterectomy and thrombectomy from VCI is reviewed (one-stage operations were not described earlier).


Assuntos
Região Lombossacral/lesões , Implantação de Prótese , Embolia Pulmonar , Trombectomia/métodos , Trombofilia , Trombose , Ferimentos não Penetrantes/complicações , Anticoagulantes/administração & dosagem , Progressão da Doença , Artéria Femoral/fisiopatologia , Humanos , Imunossupressores/administração & dosagem , Masculino , Síndrome Nefrótica/etiologia , Síndrome Nefrótica/fisiopatologia , Polimorfismo Genético , Implantação de Prótese/instrumentação , Implantação de Prótese/métodos , Artéria Pulmonar/fisiopatologia , Embolia Pulmonar/etiologia , Embolia Pulmonar/fisiopatologia , Embolia Pulmonar/terapia , Doença Cardiopulmonar/etiologia , Doença Cardiopulmonar/fisiopatologia , Indução de Remissão , Veias Renais/fisiopatologia , Trombofilia/genética , Trombofilia/fisiopatologia , Trombofilia/terapia , Trombose/etiologia , Trombose/fisiopatologia , Trombose/terapia , Filtros de Veia Cava , Veia Cava Inferior/fisiopatologia , Veia Cava Inferior/cirurgia , Adulto Jovem
14.
Ter Arkh ; 83(4): 17-23, 2011.
Artigo em Russo | MEDLINE | ID: mdl-21675267

RESUMO

Primary lymphoma of the heart (non-Hodgkin's lymphoma primarily of B-cells affecting first the heart and pericardium) is a rare disease which accounts for 1.3-2.0% of all primary tumors of the heart. A case is reported of a 43-year-old male patient with a cardioverter-defibrillator implanted at the age of 38 years for management of ventricular tachycardia paroxysms and AB-block of the second-third degree. The patient also had hypertrophic cardiomyopathy, moderate pressure gradient on the pulmonary artery valve and pericardial effusion. Later he had two cardiac tamponades (serous punctuate). From the age of 42 years breathlessness, right ventricular wall thickness, right heart pressure and pulmonary artery pressure aggravated. The patient has undergone ballon plastic surgery of the pulmonary artery valve. At the age of 43 computed tomography detected massive tumor of the heart and mediastinum first diagnosed as sarcoma but later specified as lymphoma. Endobronchial biopsy specimens contained the tissue of diffuse large B-cell lymphoma, the liver and lymph nodes were also involved. After the first course of effective polychemotherapy (CHOP) the patient died of mesenterial thrombosis. Diagnostic difficulties and problems of treatment policy are discussed.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias Cardíacas/diagnóstico , Linfoma Difuso de Grandes Células B/diagnóstico , Tomografia Computadorizada por Raios X/métodos , Adulto , Biópsia , Diagnóstico Diferencial , Evolução Fatal , Neoplasias Cardíacas/terapia , Humanos , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Masculino
15.
Ter Arkh ; 83(9): 41-8, 2011.
Artigo em Russo | MEDLINE | ID: mdl-22145387

RESUMO

AIM: To study possibility of nosological diagnosis in patients with dilated cardiomyopathy (DCMP) with use of myocardial biopsy. MATERIAL AND METHODS: The trial enrolled 62 patients (23 females) with DCMP syndrome (end diastolic left ventricular size > 5.5 cm, ejection fraction < 55%). Mean age of the patients was 46.0 +/- 12.8 years. The examination included diagnosis of viral infections (Herpes virus, parvovirus B19), measurement of anticardial antibodies titer, 99Tc-MIBI single photon emission computed tomography of the myocardium, multislice computed tomography, MRT of the heart, coronarography, morphological study of the myocardium (n=20) with application of polymerase chain reaction (PCR) for H.simplex viruses of types 1, 2 and 6, herpes zoster, Epstein-Barr, cytomegalovirus, parvovirus B-19, adenoviruses. The control group (20 operated patients with valvular heart disease and coronary heart disease) was examined for viral genome in the blood and myocardium. RESULTS: Complex examination of DCMP patients showed the following distribution by nosological entuities: myocarditis (n=41, 66.1%) including virus-positive (n=14), primary DCMP (n=16, 25.9%) including with non-compact myocarditis (NCM) in 3, with debute at delivery of the child--in 3. Arrhythmogenic right ventricular dysplasia combined with viral myocarditis (n=2), genetic myopathy (n=1) and Takayasu disease (n=1) combined with NCM, isolated NCM (n=1) were diagnosed in the rest cases. Morphological investigation of the myocardium was made in 20 patients: diagnosis of myocarditis and primary DCMP were made in 70% (including in 2 patients with CHD) and 20%. Detection of viral genome was 20 and 15% in the study and control group, respectively, in the myocardium--in 57.9 (test for parvovirus B19 was not made in 26%) and 65.0% (complete diagnosis). All the virus-positive patients with DCMP were diagnosed to have signs of active/borderline myocarditis. Diagnostic criteria and poor prognosis factors were defined. CONCLUSION: The nosological diagnosis of DCMP was made in all the examinees basing on the complex of clinical, case history and device evidence. The diagnosis was morphologically verified in 33.9% patients. Treatment approaches are developed.


Assuntos
Cardiomiopatia Dilatada/diagnóstico , Miocardite/diagnóstico , Miocárdio/patologia , Viroses/diagnóstico , Adulto , Idoso , Biópsia , Cardiomiopatia Dilatada/tratamento farmacológico , Cardiomiopatia Dilatada/patologia , Cardiomiopatia Dilatada/virologia , Ecocardiografia , Feminino , Coração/virologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Miocardite/tratamento farmacológico , Miocardite/patologia , Miocardite/virologia , Síndrome , Tomografia Computadorizada de Emissão de Fóton Único , Tomografia Computadorizada Espiral , Viroses/tratamento farmacológico , Viroses/patologia , Viroses/virologia , Adulto Jovem
16.
Klin Med (Mosk) ; 89(4): 69-76, 2011.
Artigo em Russo | MEDLINE | ID: mdl-21932571

RESUMO

Infectious endocarditis (IE) is an inflammatory disease of cardiac valves and endocardium of different origin. Subacute IE is a specific form of sepsis associated with the presence of the site of infection in the heart responsible for recurrent septicemia, embolism, and progressive changes in the immune system leading to nephritis, vasculitis, synovitis, and polyserositis. This form develops in response to a low-virulent pathogen (e.g.fungi) or as a result of inefficient antibacterial therapy. A patient is described presenting with fibrous body, aortic and mitral valve infection by the alga Prototheca wickerhamii associated with primary (myeloperoxidase) immunodeficiency. Recent data on diagnostics and treatment of subacute IE are presented.


Assuntos
Endocardite/diagnóstico , Endocardite/etiologia , Prototheca/isolamento & purificação , Adulto , Endocardite/tratamento farmacológico , Feminino , Humanos , Pirimidinas/uso terapêutico , Resultado do Tratamento , Triazóis/uso terapêutico , Voriconazol
17.
J Phys Condens Matter ; 33(45)2021 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-34388734

RESUMO

The additional atomic occupancy in the octahedral and the tetrahedral voids of the face-centered cubic lattice (fcc) of fullerene C60was detected by neutron and x-ray powder diffraction. The observed occupancy exactly tracks the rearrangement of the orientation order with temperature decreases and results from the large atomic vibrations of the carbon atoms constituting the fullerene molecules. This motion assumes a small but finite probability to find the carbon atoms in the fcc interstitial voids, which is modeled by the detected 'phantom' occupancies.

18.
Ter Arkh ; 82(1): 73-7, 2010.
Artigo em Russo | MEDLINE | ID: mdl-20364708

RESUMO

The paper describes a clinical case of congenital cardiomyopathy (left ventricular noncompaction) concurrent with secondary amyloidosis and renal involvement that develops at the outcome of long existing brochoectatic disease.


Assuntos
Neuropatias Amiloides/complicações , Bronquiectasia/complicações , Miocárdio Ventricular não Compactado Isolado/complicações , Humanos
19.
Kardiologiia ; 49(4): 93-5, 2009.
Artigo em Russo | MEDLINE | ID: mdl-19463126

RESUMO

Dominating factor of development of functional mitral insufficiency in patients with ischemic heart disease and dilated cardiomyopathy is deformation of atrioventricular valve leaflets due to traction by chordae apparatus. In patients candidates for left ventricular reconstruction because of its postinfarction aneurism the problem of preexisting or recurrent dysfunction of mitral valve acquires special value as operation itself implies surgical ventricular remodeling and therefore change of mitral valve geometry. Supplementation of the volume of surgical intervention with resection of chordae responsible for impaired coaptation of mitral valve leaflets in some cases appears to be effective and simple method of correction of mitral insufficiency.


Assuntos
Procedimentos Cirúrgicos Cardíacos/métodos , Cordas Tendinosas/cirurgia , Aneurisma Cardíaco/cirurgia , Insuficiência da Valva Mitral/cirurgia , Valva Mitral/cirurgia , Cordas Tendinosas/diagnóstico por imagem , Ecocardiografia , Seguimentos , Aneurisma Cardíaco/complicações , Aneurisma Cardíaco/diagnóstico por imagem , Ventrículos do Coração , Humanos , Masculino , Pessoa de Meia-Idade , Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/complicações , Insuficiência da Valva Mitral/diagnóstico por imagem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA