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1.
Rev. bras. cir. cardiovasc ; 34(3): 271-278, Jun. 2019. tab, graf
Article in English | LILACS | ID: biblio-1013463

ABSTRACT

Abstract Objective: The goal of the present study was to compare the myocardial protection obtained with histidine-tryptophan-ketoglutarate (HTK) cardioplegic solution (Custodiol®) and with intermittent hypothermic blood solution. Methods: Two homogenous groups of 25 children with acyanotic congenital heart disease who underwent total correction with mean aortic clamping time of 60 minutes were evaluated in this randomized study. Troponin and creatine kinase-MB curves, vasoactive-inotropic score, and left ventricular function were obtained by echocardiogram in each group. The values were correlated and presented through graphs and tables after adequate statistical treatment. Results: It was observed that values of all the studied variables varied over time, but there was no difference between the groups. Conclusion: We conclude that in patients with acyanotic congenital cardiopathies submitted to total surgical correction, mean aortic clamping time around one hour, and cardiopulmonary bypass with moderate hypothermia, the HTK crystalloid cardioplegic solution offers the same myocardial protection as the cold-blood hyperkalemic cardioplegic solution analyzed, according to the variables considered in our study model.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Cardioplegic Solutions/therapeutic use , Heart Defects, Congenital/surgery , Potassium Chloride/therapeutic use , Procaine/therapeutic use , Reference Values , Time Factors , Troponin/analysis , Echocardiography , Double-Blind Method , Prospective Studies , Reproducibility of Results , Analysis of Variance , Ventricular Function, Left , Treatment Outcome , Statistics, Nonparametric , Protective Agents/therapeutic use , Creatine Kinase, MB Form/analysis , Operative Time , Glucose/therapeutic use , Heart Defects, Congenital/physiopathology , Mannitol/therapeutic use
2.
RELAMPA, Rev. Lat.-Am. Marcapasso Arritm ; 31(3)jul.-set. 2018. ilus
Article in Portuguese | LILACS | ID: biblio-967791

ABSTRACT

A cardiomiopatia induzida pelo marcapasso é uma cardiomiopatia que ocorre em pacientes expostos a estimulação ventricular direita, sendo definida pela piora da função sistólica do ventrículo esquerdo na ausência de outras etiologias possíveis, com ou sem evidência de insuficiência cardíaca. Sua incidência varia de 9% a 26%, dependendo da população estudada e do período de acompanhamento. Relata-se o caso de uma criança submetida a implante de marcapasso ventricular por bloqueio atrioventricular total, que evoluiu com disfunção ventricular grave e insuficiência cardíaca 14 meses após o implante. Após realização de terapia de ressincronização cardíaca, a criança evoluiu com melhora clínica e remodelamento reverso do ventrículo esquerdo


Pacing-induced cardiomyopathy is observed in patients exposed to right ventricular pacing and is defined as worsening of left ventricular systolic function in the absence of alternative causes, with or without clinical evidence of heart failure. Incidence ranges from 9% to 26%, depending on the study population and the length of follow-up. This is a case report of a child with univentricular pacemaker for total atrioventricular block that evolved into severe ventricular dysfunction and heart failure after implant. Cardiac resynchronization was performed and the child evolved with clinical improvement and reverse left ventricular remodeling


Subject(s)
Humans , Male , Child , Pacemaker, Artificial/adverse effects , Ventricular Function/physiology , Cardiac Resynchronization Therapy/methods , Cardiomyopathies/diagnosis , Cardiomyopathies/therapy , Stroke Volume , Echocardiography/methods , Treatment Outcome , Ventricular Dysfunction , Drug Therapy/methods , Atrioventricular Block/diagnosis , Atrioventricular Block/therapy , Heart Ventricles
3.
Rev. bras. cir. cardiovasc ; 28(4): 545-549, out.-dez. 2013. ilus
Article in Portuguese | LILACS | ID: lil-703125

ABSTRACT

A estenose aórtica supravalvar é uma rara cardiopatia congênita, bastante incomum em adultos. Apresentamos um caso de estenose aórtica supravalvar em adulto com anomalia de vasos do arco aórtico, já com presença de insuficiência aórtica importante, tratado com êxito por meio de plastia da aorta ascendente e troca valvar aórtica.


The supravalvular aortic stenosis is a rare congenital heart defect being very uncommon in adults. We present a case of supravalvular aortic stenosis in adult associated with anomalies of the aortic arch vessels and aortic regurgitation, which was submitted to aortic valve replacement and arterioplasty of the ascending aorta with a good postoperative course.


Subject(s)
Adult , Humans , Male , Aorta, Thoracic/surgery , Aortic Stenosis, Supravalvular/surgery , Aortic Valve Insufficiency/surgery , Aorta, Thoracic/pathology , Aortic Stenosis, Supravalvular/pathology , Aortic Valve Insufficiency/pathology , Brachiocephalic Trunk/pathology , Brachiocephalic Trunk/surgery , Coronary Angiography , Heart Valve Prosthesis , Subclavian Artery/pathology , Subclavian Artery/surgery , Treatment Outcome
4.
Rev. bras. cir. cardiovasc ; 13(3): 234-8, jul.-set. 1998. ilus
Article in Portuguese | LILACS | ID: lil-223586

ABSTRACT

Objetivo: Demonstrar a viabilidade na feitura de túnel cava inferior-cava superior com retalho da parede atrial direita, evitando o emprego de material protético. Casuística e Métodos: Foram operados 2 pacientes nos quais se empregou a técnica de anastomose cavo-pulmonar total, sem uso de material protético. O primeiro caso, A.L.M., masc, 4 anos, 15 Kg, era portador de atresia tricúspide (EP), com comunicaçao interventricular (CIV) restritiva. O segundo caso, M.E.N.O., fem, 15 anos, 47 Kg, tinha doença de Ebstein. O controle pós-operatório dos pacientes foi feito com ecocardiograma e cateterismo cardíaco. As operaçoes foram realizadas com o emprego de circulaçao extracorpórea (CEC), e cardioplegia sangüínea como método de proteçao miocárdica. A canulaçao das cavas foi o mais distal possível. A tunelizaçao foi realizada com retalho de tecido atrial direito, suturado ao septo interatrial, deixando-se o seio coronariano e a comunicaçao interatrial (CIA) para a esquerda. Resultados: Ambos os pacientes evoluíram, sem complicaçoes, na UTI. O primeiro apresentou derrame pleural discreto à direita, e o segundo mantém-se em estimulaçao artificial (VVI,R). Conclusoes: A tunelizaçao intra-atrial para anastomose cavo-pulmonar total pode ser realizada sem o uso de material protético, evitando-se os riscos advindos do seu emprego (calcificaçao, retraçao, embolizaçao).


Subject(s)
Humans , Male , Female , Child, Preschool , Adolescent , Tricuspid Atresia/surgery , Heart Bypass, Right/methods , Ebstein Anomaly/surgery
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