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1.
Int. braz. j. urol ; 43(1): 48-56, Jan.-Feb. 2017. tab
Artigo em Inglês | LILACS | ID: biblio-840806

RESUMO

ABSTRACT Introduction To assess predictive value of new tumor markers, precursor of prostate specific antigen (p2PSA) and its derivates-%p2PSA and prostate health index (PHI) in detection of patients with indolent and aggressive prostate cancer (PC) in a subcohort of man whose total PSA ranged from 2 to 10ng/mL. Materials and Methods This cross-sectional study included 129 consecutive male patients aged over 50 years, with no previous history of PC and with normal digital rectal examination findings, but with serum PSA in interval between 2 and 10ng/mL. All patients underwent standard transrectal ultrasonography guided prostate biopsy for the first time. For all patients, serum PSA, free PSA (fPSA) and p2PSA were measured and PHI and %p2PSA were calculated. Results PHI and %p2PSA levels were significanlty higher in patients with PC compared to those without this malignancy. The same findings have been observed in group of patients with Gleason score ≥7 compared to those with Gleason score <7. ROC analysis reveled the highest area under the curve with these two markers. Multivariate logistic regression showed significant improvement in PC detection and its agressive form (assumed as Gleason score ≥7). Conclusions New markers, derivates of p2PSA (especially %p2PSA and PHI), represente potentially very important clinical tool for predicting presence of PC, and even more important, to discriminate patients with Gleason score <7 from those with Gleason score ≥7 with total PSA in range from 2 to 10ng/mL.


Assuntos
Humanos , Masculino , Idoso , Neoplasias da Próstata/patologia , Neoplasias da Próstata/sangue , Precursores de Proteínas/sangue , Antígeno Prostático Específico/sangue , Próstata/patologia , Valores de Referência , Biópsia , Modelos Logísticos , Estudos Transversais , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Curva ROC , Estatísticas não Paramétricas , Gradação de Tumores , Pessoa de Meia-Idade
2.
Int Braz J Urol ; 43(1): 48-56, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28124526

RESUMO

INTRODUCTION: To assess predictive value of new tumor markers, precursor of prostate specific antigen (p2PSA) and its derivates-%p2PSA and prostate health index (PHI) in detection of patients with indolent and aggressive prostate cancer (PC) in a subcohort of man whose total PSA ranged from 2 to 10ng/mL. MATERIALS AND METHODS: This cross-sectional study included 129 consecutive male patients aged over 50 years, with no previous history of PC and with normal digital rectal examination findings, but with serum PSA in interval between 2 and 10ng/mL. All patients underwent standard transrectal ultrasonography guided prostate biopsy for the first time. For all patients, serum PSA, free PSA (fPSA) and p2PSA were measured and PHI and %p2PSA were calculated. RESULTS: PHI and %p2PSA levels were significanlty higher in patients with PC compared to those without this malignancy. The same findings have been observed in group of patients with Gleason score ≥7 compared to those with Gleason score <7. ROC analysis reveled the highest area under the curve with these two markers. Multivariate logistic regression showed significant improvement in PC detection and its agressive form (assumed as Gleason score ≥7). CONCLUSIONS: New markers, derivates of p2PSA (especially %p2PSA and PHI), represente potentially very important clinical tool for predicting presence of PC, and even more important, to discriminate patients with Gleason score <7 from those with Gleason score ≥7 with total PSA in range from 2 to 10ng/mL.


Assuntos
Antígeno Prostático Específico/sangue , Neoplasias da Próstata/sangue , Neoplasias da Próstata/patologia , Precursores de Proteínas/sangue , Idoso , Biópsia , Estudos Transversais , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Valor Preditivo dos Testes , Próstata/patologia , Curva ROC , Valores de Referência , Reprodutibilidade dos Testes , Estatísticas não Paramétricas
3.
Clin Exp Obstet Gynecol ; 43(2): 245-9, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27132420

RESUMO

OBJECTIVE: First trial of estimating values of scans of fetal heart structures (FHS) in first trimester of pregnancy, as more primary facts of possible chromosomopathies. MATERIALS AND METHODS: The study included 2,643 fetuses that were examined in first trimester of pregnancy on Sono CT convex (C5-2MHz), endovaginal (ev 8-4MHz), and linear transducers (L12-5MHz) during a period of eight years. Fetal heart was evaluated using appropriate software with broad-band transducers and color Doppler, Sono CT, and HD ZOOM technologies. The scan was performed by three experienced physicians. FHS were based on: left and right ventricle morphology; AV valves (atrioventricular) position and existence of primal ostium; relationship of left ventricle outflow tract (LVOT) and right ventricle outflow tract (RVOT) and great vessels on three vessel view (3VV) and estimation of ductal and aortic arch. RESULTS: Several developments, one being the ability to identify fetuses at risk for cardiac defects combining nuchal translucency (NT), ductus venosus (DV) Doppler, and evaluation of tricuspid regurgitation, have prompted reconsideration of the role of the first trimester prognostic factor of fetal evaluation. In low-risk pregnancies group, 36 (1.8%) fetuses were found to have congenital heart disease (CHD), and in high-risk pregnancies the number of fetuses with CHD was 75 (12%). Genetic amniocentesis or chorionic villus sampling (CVS) was performed in all fetuses with CHD. Forty-two (37.8%) fetuses with CHD were found to have chromosomal anomalies. Out of 111 fetuses with CHD 39 (35.1%) had an nuchal translucency (NT) above three mm. Out of 42 fetuses with chromosomal anomalies and CHD, 29 (69%) had an increased NT. CONCLUSION: Using first trimester fetal echosonography constitutes a further step in the earlier recognition of chromosomopathies, even in low risk groups. Still further steps are necessary as all facts of good clinical practice. In order to offer further benefits during pregnancies, improvements in diagnostics are still required.


Assuntos
Transtornos Cromossômicos/diagnóstico por imagem , Coração Fetal/diagnóstico por imagem , Cardiopatias Congênitas/diagnóstico por imagem , Medição da Translucência Nucal , Adolescente , Adulto , Amniocentese , Amostra da Vilosidade Coriônica , Transtornos Cromossômicos/diagnóstico , Estudos de Coortes , Ecocardiografia , Feminino , Cardiopatias Congênitas/diagnóstico , Cardiopatias Congênitas/genética , Humanos , Pessoa de Meia-Idade , Gravidez , Primeiro Trimestre da Gravidez , Gravidez de Alto Risco , Estudos Prospectivos , Ultrassonografia Pré-Natal , Veias Umbilicais/diagnóstico por imagem , Adulto Jovem
4.
Clin Exp Obstet Gynecol ; 42(2): 208-11, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26054121

RESUMO

PURPOSE OF INVESTIGATION: T0 investigate how the regularity of checkups in pregnancy influences maternal behavior regarding habits in prevention of urinary tract infection (UTI), the level of information, and finally the prevalence of asymptomatic bacteriuria (AB). MATERIALS AND METHODS: This study included 223 women with regular and 220 women with irregular checkups in pregnancy were given the questionnaire on the following issues: frequency of sexual intercourses during pregnancy, the regularity of bathing and changing of underwear, the direction of washing the genital region after urinating, the regularity of antenatal visits to gynecologist, and the subjective experience concerning the quality of the information received by the healthcare provider. RESULTS: AB was present significantly more frequent in group of participants with irregular controls during pregnancy compared to group with regular checkups in pregnancy. The prevalence of AB was higher in those women who had irregular prenatal checkups. Maternal behaviors related with the risk of urinary infections are more frequent among women with irregular prenatal care. CONCLUSION: Results of the present study emphasize the importance of regular prenatal care in AB prevention.


Assuntos
Infecções Bacterianas/epidemiologia , Bacteriúria/epidemiologia , Complicações Infecciosas na Gravidez/epidemiologia , Cuidado Pré-Natal , Adulto , Infecções Bacterianas/microbiologia , Infecções Bacterianas/prevenção & controle , Bacteriúria/microbiologia , Bacteriúria/prevenção & controle , Feminino , Humanos , Comportamento Materno , Gravidez , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Prevalência , Estudos Prospectivos , Sérvia/epidemiologia , Infecções Urinárias
5.
Nurse Educ Today ; 35(4): 590-6, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25623630

RESUMO

BACKGROUND: In a country with a poor economy and limited job opportunities, the outmigration of students is not commonly perceived as a problem but rather is perceived as a solution to the high unemployment facing young health professionals. OBJECTIVES: Study objectives were to identify the prevalence of intention to work abroad of nursing graduates to point to the predictors of intention to work abroad and predictors of having a firm plan to work in a foreign country. DESIGN: Descriptive study, a survey. SETTINGS: College and specialist nursing schools, Serbia. PARTICIPANTS: 719 nursing graduates from the 2012/2013 school year. METHODS: Voluntarily completed a questionnaire that was designed with regard to similar surveys administered in EU-candidate countries during the pre-accession period. Data were analysed with descriptive and multivariate regression analyses. RESULTS: Almost 70% (501) of respondents indicated an intention to work abroad. Of the nurses, 13% already had established a firm plan to work abroad. Single graduates and those with a friend or relative living abroad were more likely to consider working abroad than were their counterparts (odds ratios were 2.3 and 1.7, respectively). The likelihood of considering working abroad decreased by 29% when the individuals' financial situation was improved. Factors associated with having a firm plan were previous professional experience in a foreign country, having someone abroad and financial improvement (5.4 times, 4.8 times and 2 times greater likelihood, respectively). CONCLUSIONS: The high prevalence of intention to work abroad suggests the need to place the issue of the out-migration of nursing graduates on the policy agenda. College and specialty nursing graduates and health technicians are prepared to work abroad in search of a better quality of life, better working conditions and higher salaries.


Assuntos
Emigração e Imigração , Intenção , Enfermeiros Internacionais , Salários e Benefícios/economia , Adulto , Atitude do Pessoal de Saúde , Escolha da Profissão , Feminino , Humanos , Masculino , Sérvia , Inquéritos e Questionários , Adulto Jovem
6.
Am Heart J ; 138(5 Pt 1): 941-9, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10539827

RESUMO

BACKGROUND: For transcatheter closure of atrial-septal defects, different occlusion systems are available. The purpose of this study was to examine the clinical feasibility of the ASD Occlusion System (ASDOS, Dr Osypka GmbH, Grenzach-Wyhlen, Germany) and to evaluate the short- and long-term results. METHODS AND RESULTS: The study was composed of 20 consecutive patients with atrial-septal secundum defect (n = 13) or patent foramen ovale (n = 7). The device implantation was successful in all patients. For optimal closure of the defect, left atrial and right atrial umbrellas of different sizes were required in 10 of 20 patients. No major short- or long-term complications occurred. During the mean follow-up period of 13.9 +/- 5 months, 5 strut fractures without dislocation were observed, and in 8 (40%) of 20 patients transesophageal echocardiography revealed a small residual shunt. CONCLUSION: The ASDOS double umbrella system is suitable for transcatheter closure of interatrial defects in selected patients. This system showed a high procedural safety and has the unique advantage of individual adaptation of the occluding device on the defect anatomy that results in high closure effectiveness.


Assuntos
Cateterismo Cardíaco/instrumentação , Procedimentos Cirúrgicos Cardíacos/métodos , Comunicação Interatrial/cirurgia , Adulto , Idoso , Angiografia Coronária , Ecocardiografia Transesofagiana , Desenho de Equipamento , Estudos de Viabilidade , Feminino , Seguimentos , Comunicação Interatrial/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
7.
Am J Cardiol ; 82(11): 1405-13, 1998 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-9856928

RESUMO

A clinical trial was conducted to assess the feasibility, safety, and efficacy of the atrial septal defect (ASD) occlusion system for transcatheter closure of secundum ASD and patent foramen ovale (PFO) after episodes of cerebral embolism. Occlusion was attempted in 200 patients aged 1 to 74 years (mean 32). The procedure failed in 26 patients (13%); the device was retrieved through a catheter in 20 and through surgery in 6 patients. Procedure-related complications necessitating surgical removal of the device included device embolization in 2, device entrapment within the Chiari network in 1, frame fracture in 1, and perforation of atrial wall in 2. All 6 patients experienced an uneventful postoperative course. An additional 11 patients (6%) underwent surgical removal of the device during follow-up. There were 163 patients (81%) with an implanted ASD occlusion system at follow-up of from 6 to 36 months (mean 17). Thrombus formation around the device was detected by transesophageal echocardiography in 9 patients 1 to 4 weeks after implantation. One of these patients (who had a coagulation factor XII deficiency) suffered a cerebral thromboembolism. Late atrial wall perforation (5, 6, and 8 months after implantation) occurred in 3 adult patients. Infectious endocarditis developed in 2 adult patients (1%). No late device embolization and no atrioventricular valve injury occurred. An asymptomatic device frame fracture was found in 14% and frame deformity in 4% of all patients during the follow-up period of >230 patient-years. Immediately after closure, a moderate/large residual shunt remained in 8% and a small shunt in 29% of patients. After 1 year, a moderate/large shunt was present in 2% and a small one in 26% of patients. During a total follow-up of 49 patient-years, only 1 of 46 patients with PFO had a transient neurologic event after the closure. The study indicates that patients with centrally situated secundum ASD and those with PFO after cerebral embolism can be treated with this system with a high success rate and an acceptable morbidity.


Assuntos
Cateterismo Cardíaco/instrumentação , Comunicação Interatrial/terapia , Próteses e Implantes , Implantação de Prótese/métodos , Adolescente , Adulto , Idoso , Cateterismo Cardíaco/efeitos adversos , Criança , Pré-Escolar , Europa (Continente) , Estudos de Viabilidade , Seguimentos , Humanos , Lactente , Pessoa de Meia-Idade , Implantação de Prótese/efeitos adversos , Implantação de Prótese/instrumentação
8.
Cathet Cardiovasc Diagn ; 43(1): 81-3, 1998 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9473199

RESUMO

Transcatheter occlusion of cardiac defects has become an effective and less invasive alternative to open heart surgery. Thromboembolic complications are rare events, after both surgical and transcatheter closure of atrial septal defects [Galal et al.: Eur Heart J 15:1381-1384, 1994]. We report on a case of thrombus formation on the atrial septal defect occluder system (ASDOS) [Sievert et al.: Cathet Cardiovasc Diagn 36:232-240, 1995; Hausdorf et al.: Heart 75:83-88, 1996]. Two days after transcatheter occlusion, the patient suffered an acute stroke due to embolism despite anticoagulation with intravenous heparin. A coagulation disorder with reduced factor XII concentration was deduced as the likely cause. Repeated transesophageal echocardiographic (TEE) studies revealed an involution of the intracardial thrombus within weeks of subsequent anticoagulatory treatment. First off, this case shows that patients with factor XII deficiency are at risk for thromboembolism. Second, it again clarifies that even large amounts of intraartrial thrombotic material may not be seen by transthoracic echocardiography (TTE) and underscores the necessity of performing TEE. Screening patients for coagulation disorders (Quick's value (Q), partial thromboplastin time (PTT)) before they are selected for treatment with thrombogenic devices is indispensable. With regard to their personal history (earlier thromboembolism) and the result of this screening (e.g., prolongation of PTT), quantitative determination of coagulation factors is reasonable. If patients endangered by thromboembolic complications nevertheless undergo ASD occlusion procedures, anticoagulation monitoring requires exceptional attention. Furthermore, it is recommended that TEE should be carried out in these patients 2 days after treatment, since transthoracic echocardiography (TTE) might be unable to detect thrombus formation on the device.


Assuntos
Cateterismo Cardíaco , Deficiência do Fator XII/complicações , Comunicação Interatrial/terapia , Próteses e Implantes/efeitos adversos , Trombose/etiologia , Ecocardiografia Transesofagiana , Deficiência do Fator XII/diagnóstico , Comunicação Interatrial/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Trombose/diagnóstico por imagem
10.
Z Kardiol ; 85(2): 97-103, 1996 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-8650988

RESUMO

An atrial septum defect was closed with an ASDOS (Babic) occluder in 13 patients aged from 22 to 67 years. The diameters of the ASD ranged from 12 to 36 mm, the left to right shunt from 35% to 70%. With one exception, the occluder could be implanted in all patients. Two patients with an oversized ASD (diameter 31 and 36 mm respectively) had to be operated after 8 h and 2 weeks, respectively. In one patient, a small asymptomatic hemopericardium was detected after 24 h by routine echocardiogram and in another patient a single umbrella arm fracture was noticed by routine x-ray 4 months after the implantation. No further complications occurred. Follow-up is now 3 months to 1 year. With one exception, there was no residual shunt as measured by oximetry.


Assuntos
Cateterismo Cardíaco/instrumentação , Comunicação Interatrial/terapia , Adulto , Idoso , Ecocardiografia , Desenho de Equipamento , Falha de Equipamento , Feminino , Seguimentos , Comunicação Interatrial/diagnóstico , Comunicação Interatrial/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
11.
Cathet Cardiovasc Diagn ; 36(3): 232-40, 1995 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-8542631

RESUMO

An improved 10 Fr version of the atrial septal defect (ASD) occlusion system consisting of two umbrellas for transvenous introduction over the long veno-arterial guide-wire was used to attempt closure in five adult patients with large defects (26-35 mm). The umbrellas are made of nitinol wire frame and a thin membrane of microporous polyurethane. Supported by the metal cannula and guided by selective left atriography, the umbrellas of 45-60 mm were placed individually into the atria and screwed together at the septum level by means of a torquer catheter. Positioning and screwing on, unscrewing, separating, and repositioning the umbrellas up to 17 times were needed to anchor the prosthesis correctly in a patient. The prosthesis could be implanted primarily in all patients (in one at second session). Dislodgement of a 60 mm prosthesis and left atrial perforation with a 55 mm prosthesis required surgery in two patients 8 hours and 2 weeks post procedure, respectively. A single umbrella-arm fracture was noticed in one patient 4 months after the implantation. All five patients were free of symptoms at follow-up after 7-10 months. Transcatheter closure of large ASDs is technically feasible with this system. The morbidity is mainly associated with the implantation of very large umbrellas.


Assuntos
Cateterismo Cardíaco , Comunicação Interatrial/terapia , Próteses e Implantes , Adulto , Cateterismo Cardíaco/efeitos adversos , Cineangiografia , Falha de Equipamento , Feminino , Coração/diagnóstico por imagem , Comunicação Interatrial/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Próteses e Implantes/efeitos adversos , Radiografia Intervencionista
12.
Br Heart J ; 67(2): 185-9, 1992 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-1540441

RESUMO

OBJECTIVE: To examine the value of transarterial balloon dilatation of the mitral valve for treatment of patients with mitral stenosis over a period of five years. DESIGN: Analysis of patients' functional state, and haemodynamic and echocardiographic variables, before and immediately after the procedure and during a follow up of up to five years. SETTING: A cardiovascular centre in Belgrade, Yugoslavia. PATIENTS: Two hundred and ninety four patients who underwent percutaneous transarterial dilatation of the mitral valve between February 1985 and February 1990. RESULTS: Mean mitral valve area was enlarged by 109%. Complications included death (0.7%), severe mitral insufficiency (2.3%), mild mitral insufficiency (9.9%), cerebral embolism (2%), and injury to the femoral artery (2%). Two more patients died at two and 11 months after the procedure. Late cardiac surgery was needed in eight patients (mitral insufficiency in three, restenosis in three, thrombus in one, and endocarditis in one. Restenosis occurred in seven patients. Four of these underwent repeat dilatation and three had surgery. Improvement of symptoms was seen in 94% of patients during the follow up. CONCLUSION: Transarterial balloon dilatation of the mitral valve gave good results with acceptable morbidity and mortality and had some advantages over the anterograde approach.


Assuntos
Cateterismo/métodos , Estenose da Valva Mitral/terapia , Adolescente , Adulto , Idoso , Cateterismo/efeitos adversos , Feminino , Artéria Femoral , Seguimentos , Hemodinâmica/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estenose da Valva Mitral/fisiopatologia
13.
Angiology ; 42(11): 889-98, 1991 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-1952276

RESUMO

Coronary angiographic findings indicative for left atrial thrombi (neovascularization in the region of the left atrium) were compared with echocardiographic ones. Of 214 patients who had mitral surgery, the authors had all the available data for 161 (31 of whom had left atrial thrombi). The presence of a neovascularization had a sensitivity of 61%, a specificity of 100%, predictive accuracy of 100%, and predictive value of 92%, while echocardiography had a sensitivity of 52%, specificity of 96%, predictive accuracy of 76%, and predictive value of 89%. There was no difference in the sensitivity of both methods for the detection of thrombi located in the left atrium as a whole cavity (p less than 0.05). However, coronary angiography was superior to echocardiography in the diagnosis of thrombi located in the left atrial appendage (p less than 0.05). The diagnosis of left thrombi could be improved by using both methods (specificity 77%, predictive value 95%). Thus, selective coronary angiography is a useful diagnostic method, in addition to echocardiography, in the diagnosis of left atrial thrombi.


Assuntos
Angiografia Coronária , Ecocardiografia , Cardiopatias/diagnóstico , Trombose/diagnóstico , Adulto , Idoso , Angiografia Coronária/métodos , Ecocardiografia/métodos , Estudos de Avaliação como Assunto , Feminino , Átrios do Coração/diagnóstico por imagem , Humanos , Cuidados Intraoperatórios , Masculino , Pessoa de Meia-Idade , Valva Mitral/cirurgia
14.
Int J Cardiol ; 30(2): 230-2, 1991 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-2010248

RESUMO

We describe a case of percutaneous balloon valvoplasty of a stenotic Ionescu-Shiley mitral bioprosthesis with the help of an original emboli-protecting device. The procedure reduced diastolic gradient from 29 to 9 mmHg. The calculated area of the orifice increased from 0.7 to 1.7 cm2. At 10 months follow-up examination there was no change of hemodynamic parameters.


Assuntos
Bioprótese , Cateterismo , Próteses Valvulares Cardíacas , Trombose/terapia , Adulto , Humanos , Masculino , Valva Mitral , Desenho de Prótese
15.
Cardiology ; 78(4): 311-6, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-1889049

RESUMO

We measured pulmonary and systemic flows in 22 patients with mitral stenosis and in 7 controls. In patients with mitral stenosis, pulmonary flow index averaged 2.33 +/- 0.41 l/min/m2 and systemic flow index averaged 2.15 +/- 0.60 l/min/m2, p = 0.045. There was a strong correlation between the difference in pulmonary and systemic flow indexes and the difference in mean left and right atrial pressure (r = 0.749, p = 0.00008). After a successful dilatation in 17 patients, there was a significant drop in the difference between pulmonary and systemic flow indexes (0.26 +/- 0.41 vs. 0.07 +/- 0.37 l/min/m2, p = 0.048). We conclude that chronic elevation of left atrial pressure leads to a left to right shunt probably through bronchial veins.


Assuntos
Brônquios/irrigação sanguínea , Hemodinâmica/fisiologia , Estenose da Valva Mitral/fisiopatologia , Circulação Pulmonar/fisiologia , Cateterismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estenose da Valva Mitral/terapia , Termodiluição , Veias/fisiopatologia
16.
J Interv Cardiol ; 4(4): 283-94, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-10150938

RESUMO

A new device for transcatheter closure of heart defects was constructed and used to close a patent ductus arteriosus (PDA) in seven adult patients and an atrial septal defect (ASD) in six adult patients. The device consisted of two self-opening umbrellas and a piece of Ivalon. A Dacron patch was sewn on the "male" umbrella for the ASD closure. The device required a 9 Fr introducing venous sheath for PDA and a 14 Fr sheath for the ASD. The venoarterial (right femoral vein-PDA or ASD-left femoral artery) long wire track was arranged. The "male" umbrella and the Ivalon were inserted transvenously one after another, advanced over the long wire across the PDA or ASD and extruded into the aorta or left atrium, respectively. The "female" umbrella was advanced transvenously over the long wire into the pulmonary artery (for PDA) or into the right atrium (for ASD). The metal conus on the long wire was used to pull the "male" umbrella while a special stiff pusher was used to bring the "female" umbrella to the "male" umbrella along the long wire. By these means the umbrellas interlocked at the defect level and closed it. The long wire was then removed through the left femoral artery. Protrusion of the interlocked device through the PDA occurred in one patient and through the ASD in two patients. In all three patients the device was kept on the wire until surgery and an early postrelease device embolization was avoided. In all other patients the defects were successfully closed. The follow-up of 3-27 months was uneventful in all patients. These results indicate that the described procedure is effective and safe, and warrants further clinical trial.


Assuntos
Cateterismo Cardíaco/instrumentação , Permeabilidade do Canal Arterial/terapia , Comunicação Interatrial/terapia , Adulto , Cateterismo Cardíaco/efeitos adversos , Cateterismo Cardíaco/métodos , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polivinil/uso terapêutico
19.
Herz ; 13(2): 91-9, 1988 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-3378724

RESUMO

Between February, 1985, and August, 1987, 76 patients with mitral stenosis underwent percutaneous transarterial mitral balloon valvuloplasty (MVP). There were 58 females and 18 males aged from 15 to 69 years (mean 39 +/- 11). In 31 patients the mitral valve was pliable (40%) and in 45 patients (60%) the valve was nonpliable. Calcified mitral stenosis was found in 24 patients (31%). Transseptal catheterization was used to place one or two 0.035" (350 cm long) exchange wires into the ascending aorta in order to be snared, retrieved and exteriorized, each one through a femoral artery. Over these wires, the balloon dilation catheters were advanced through the femoral artery, retrogradely, across the mitral valve, for mitral dilation. Single (25 mm in diameter, trefoil 3 x 12 mm, bifoil 2 x 19 mm) and double (18 and 15 mm, 18 and 18 mm, 18 and 20 mm) balloons were used in 24 and 52 patients respectively. Transarterial mitral valvuloplasty produced immediate improvement of mitral valve area (MVA = 1.1 +/- 0.3 to 2.4 +/- 0.4 cm2, p less than 0.001), mitral valve gradient (19 +/- 4 to 8 +/- 6 mmHg, p less than 0.001), echocardiographic left atrial diameter (LAD = 58 +/- 6 to 54 +/- 5 mm, p greater than 0.05) and echo-MVA (0.9 +/- 0.4 to 2.1 +/- 0.7, p less than 0.001). In three patients no MVA enlargement was achieved. A significant mitral regurgitation was produced in two patients. A stroke occurred in three patients (3.9%), one of these patients subsequently died (1.3%), one recovered and one remained hemiplegic. No atrial septal defect was found after valvuloplasty.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Cateterismo , Estenose da Valva Mitral/terapia , Adolescente , Adulto , Idoso , Cateterismo/efeitos adversos , Cateterismo/métodos , Ecocardiografia , Feminino , Seguimentos , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Estenose da Valva Mitral/fisiopatologia , Fatores de Tempo
20.
Cathet Cardiovasc Diagn ; 14(4): 229-37, 1988.
Artigo em Inglês | MEDLINE | ID: mdl-3396065

RESUMO

Between February 1985 and May 1987, 72 patients with mitral stenosis (MS) underwent percutaneous transluminal mitral valvuloplasty (PTMV). The retrograde transarterial double-balloon technique was used on 54/72 patients (75%); 16 males, 38 females; mean age: 39 +/- 11 years. Transseptal catheterization was used to place two 0.035", 350-cm exchange wires into the ascending aorta in order to be snared, retrieved, and exteriorized, each through a femoral artery. Over these wires, the balloon dilation catheters were advanced through the femoral artery, retrogradely, across the mitral valve, for PTMV. The transmitral mean gradient fell [18 +/- 4 to 9 +/- 5 mmHg (P less than 0.001)]; the cardiac output increased [5.1 +/- 0.8 6.1 +/- 0.8 L/min (P less than 0.001)]; the hemodynamically calculated valve area increased [1.2 +/- 0.2 to 2.3 +/- 0.6 cm2 (P less than 0.001)]; and the short axis two-dimensional echocardiographic valve area increased [1.1 +/- 0.3 to 2.2 +/- 0.7 (P less than 0.001)]. PTMV was unsuccessful in two patients (4%), due to the inability to maintain the inflated balloons in the mitral position. Significant complications were encountered in two patients: two strokes (3.7%) and one mortality from the stroke (1.4%). Significant mitral regurgitation occurred in two patients (3.7%); no post-PTMV hemodynamically significant atrial septal defects were detected. Follow-up (mean time: 11 +/- 6 months) of 43 patients showed a persistent improvement in echocardiographic findings in 27 (63%) and hemodynamically measured mitral valve area in the 16 patients in which cardiac catheterization was repeated. The retrograde, transarterial double-balloon technique can successfully accomplish PTMV with good results and an acceptable low morbidity and mortality.


Assuntos
Cateterismo/métodos , Estenose da Valva Mitral/terapia , Adulto , Cateterismo Cardíaco , Cateterismo/efeitos adversos , Ecocardiografia , Feminino , Seguimentos , Humanos , Masculino
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