Fila de espera para tratamento de pacientes com cardiopatia congênita: relato de um Centro de Referência Amazônico / Waiting for cardiac procedure in congenital heart disease: portrait of an Amazonian Hospital

As cardiopatias congênitas são importantes causas de morbimortalidade infantil e, em cerca de 50% dos casos, é necessária a intervenção cirúrgica no primeiro ano de vida. Estima-se alto défice de procedimentos na Região Norte do Brasil.Analisar o tempo de espera para realização de tratamento eletivo cirúrgico e/ou intervencionista de crianças portadoras de cardiopatias congênitas em um centro de referência cardiológico, e fazer considerações sobre as cardiopatias e suas formas de tratamento na referida instituição. Estudo analítico, de caráter transversal do período de janeiro de 2012 a outubro de 2014, de pacientes com idade igual ou inferior a 14 anos diagnosticados com cardiopatias congênitas que estavam na fila de tratamento cardíaco eletivo cirúrgico ou percutâneo. Das 407 crianças que aguardavam por tratamento, a faixa etária mais prevalente foi a de > 2 a 6 anos (34,0%). O tempo médio de espera, em meses, foi 23,1 ± 18,3, com mediana de 19. As cardiopatias mais frequentes foram comunicação interventricular (28,98%), persistência do canal arterial (18,42%) e comunicação interatrial (11,05%). A maioria das crianças (63,4%) não pertencia à região metropolitana. As intervenções percutâneas representaram somente 27,84% do total de cateterismos e 14,85% de todos os tratamentos cardíacos. Cerca de 60% do volume de cirurgias pediátricas ocorreu em crianças sem cadastro prévio no sistema, devido ao caráter de urgência. Grande parte das crianças que aguardam por procedimento cardíaco é procedente de fora da região metropolitana e tem malformações potencialmente tratáveis por cateterismo. É necessário aumentar a capacidade operacional do único centro de referência público do Estado, além de descentralizar o atendimento em alta complexidade cardiológica da região metropolitana

Congenital heart disease is an important cause of morbidity and mortality in childhood, and in 50% of cases, surgery is required in the first year of life. A high deficit of surgical procedures is estimated in Northern Brazil. To analyze the waiting time for elective surgical treatment and/or intervention in children with congenital heart disease in a Cardiology referral center, and to make considerations about heart diseases and forms of treatment in that institution. A cross-sectional study of all patients aged less than 14 years, with a diagnosis of congenital heart disease that were waiting for elective surgical or percutaneous cardiac treatment. Among the 407 children with congenital heart defects, the most prevalent age group was > 2 to 6 years (34.0%). The average waiting time was 23.1 ± 18.3 months, with a median of 19. The most frequent heart disease was ventricular septal defect (28.98%), patent ductus arteriosus (18.42%) and atrial septal defect (11.05%). Most children (63.4%) were not from the metropolitan area. The percutaneous interventions represented only 27.84% of the catheterization procedures and 14,85% of all heart treatments. Approximately 60% of the pediatric surgeries occurred in children who were not previously registered due to urgency cases. Most of the children waiting for a cardiac procedure were not from the metropolitan area and had malformations potentially treatable by catheterization. It is necessary to increase the capacity of the single referral center in the state of Pará, as well as decentralize the high-complexity cardiological care in the metropolitan region

Waiting for Cardiac Procedure in Congenital Heart Disease: Portrait of an a Hospital in the Amazonian Region / Fila de Espera para Tratamento de Pacientes com Cardiopatia Congênita: Retrato de um Centro de Referência Amazônico

Congenital heart disease is an important cause of morbidity and mortality in childhood, and in 50% of cases, surgery is required in the first year of life. A high deficit of surgical procedures is estimated in Northern Brazil. Objective: To analyze the waiting time for elective surgical treatment and/ or intervention in children with congenital heart disease in a Cardiology referral center, and to make considerations about heart diseases and forms of treatment in that institution. Methods: A cross-sectional study of all patients aged less than 14 years, with a diagnosis of congenital heart disease that were waiting for elective surgical or percutaneous cardiac treatment. Results: Among the 407 children with congenital heart defects, the most prevalent age group was > 2 to 6 years (34.0%). The average waiting time was 23.1 ± 18.3 months, with a median of 19. The most frequent heart disease was ventricular septal defect (28.98%), patent ductus arteriosus (18.42%) and atrial septal defect (11.05%). Most children (63.4%) were not from the metropolitan area. The percutaneous interventions represented only 27.84% of the catheterization procedures and 14,85% of all heart treatments. Approximately 60% of the pediatric surgeries occurred in children who were not previously registered due to urgency cases. Conclusion: Most of the children waiting for a cardiac procedure were not from the metropolitan area and had malformations potentially treatable by catheterization. It is necessary to increase the capacity of the single referral center in the state of Pará, as well as decentralize the high-complexity cardiological care in the metropolitan region

As cardiopatias congênitas são importantes causas de morbimortalidade infantil e, em cerca de 50% dos casos, é necessária a intervenção cirúrgica no primeiro ano de vida. Estima-se alto défice de procedimentos na Região Norte do Brasil. Objetivo: Analisar o tempo de espera para realização de tratamento eletivo cirúrgico e/ou intervencionista de crianças portadoras de cardiopatias congênitas em um centro de referência cardiológico, e fazer considerações sobre as cardiopatias e suas formas de tratamento na referida instituição. Método: Estudo analítico, de caráter transversal do período de janeiro de 2012 a outubro de 2014, de pacientes com idade igual ou inferior a 14 anos diagnosticados com cardiopatias congênitas que estavam na fila de tratamento cardíaco eletivo cirúrgico ou percutâneo. Resultados: Das 407 crianças que aguardavam por tratamento, a faixa etária mais prevalente foi a de > 2 a 6 anos (34,0%). O tempo médio de espera, em meses, foi 23,1 ± 18,3, com mediana de 19. As cardiopatias mais frequentes foram comunicação interventricular (28,98%), persistência do canal arterial (18,42%) e comunicação interatrial (11,05%). A maioria das crianças (63,4%) não pertencia à região metropolitana. As intervenções percutâneas representaram somente 27,84% do total de cateterismos e 14,85% de todos os tratamentos cardíacos. Cerca de 60% do volume de cirurgias pediátricas ocorreu em crianças sem cadastro prévio no sistema, devido ao caráter de urgência. Conclusão: Grande parte das crianças que aguardam por procedimento cardíaco é procedente de fora da região metropolitana e tem malformações potencialmente tratáveis por cateterismo. É necessário aumentar a capacidade operacional do único centro de referência público do Estado, além de descentralizar o atendimento em alta complexidade cardiológica da região metropolitana

Relato de caso sobre comunicação interventricular pós-infarto agudo do miocárdio / Case report on acute postinfarction myocardial interventricular septal rupture

O presente artigo relata dois casos de pacientes, os quais foram admitidos na emergência do Instituto de Moléstias Cardiovasculares (IMC) com dor tipicamente anginosa, caracterizada como dor retroesternal em aperto, com irradiação para a face medial do braço esquerdo e relacionada ao esforço, com melhora no repouso. No exame físico, apresentavam taquicardia e sudorese. O eletrocardiograma evidenciou sinais de isquemia miocárdica em ambos os pacientes. Após as medidas iniciais serem tomadas, um dos pacientes foi submetido à terapia trombolítica e o outro à angioplastia para implantação de stent . Mais tarde, foi identificada a comunicação interventricular (CIV), seguido da necessidade de correção cirúrgica da mesma. Ambos os pacientes evoluíram bem, apesar da alta taxa de mortalidade desta condição

This paper reports two cases of patients who were admitted to the emergency room of the Instituto de Moléstias Cardiovasculares (IMC) with typically anginal pain, characterized by tight retrosternal pain radiating to the inside left arm, related to stress and improving with rest. Physical examination showed tachycardia and excessive sweating. Electrocardiogram showed signs of myocardial ischemia in both patients. After the initial measures were taken, one of the patients received thrombolytic therapy, and the other angioplasty for stent implantation. Later, interventricular septum rupture (IVSR) was identified, followed by the need for surgery to correct it. Both patients recovered well, despite the high mortality rate of this condition

Complicaciones del tratamiento quirúrgico de la comunicación interventricular en pacientes menores de 17 años en el INSN / Surgical and medical complications in ventricular septal defects surgical treatment in pediatrics patients in INSN

OBJETIVO: Conocer las complicaciones médico quirúrgicas, post tratamiento quirúrgico de la comunicación interventricular (CIV) de pacientes menores de 17 años, tratados en el INSN. MATERIAL Y MÉTODOS: Estudio descriptivo, retrospectivo. Se incluyeron todos los pacientes menores de 17 años atendidos por CIV en el INSN, de Enero del 2007 a Julio del 2011. RESULTADOS: Se revisaron 61 historias clínicas de pacientes con diagnóstico de CIV. 22 eran de sexo femenino (36.1%), y 39 masculino (63.9%). El tipo de CIV más frecuente fue el perimembranoso (78.7%) seguidos por los CIV de entrada de salida y muscular (7.1%). Según la técnica operatoria: 75.4% fueron transatriales y 11.5% transpulmonares. Las complicaciones médicas post quirúrgicas más frecuentes, fueron el bloqueo aurículo ventricular e insuficiencia cardiaca congestiva ambas con el 8.2% de frecuencia. La complicación quirúrgica más frecuente fue el CIV residual (29.5%), seguida de dehiscencia esternal (9.8%) e infección de herida operatoria (8.2%). 47.5% no presentó ninguna complicación quirúrgica. CONCLUSIONES: El tratamiento quirúrgico de la comunicación interventricular es una alternativa segura para la corrección de esta patología.

OBJETIVE: The purpose of this study was to know the surgical and medical complications in ventricular septal defects (VSD) surgical treatment in pediatrics patients in INSN. MATERIALS AND METHODS: A descriptive and retrospective study in pediatrics patients that underwent VSD surgical closure in the cardiac service of ôINSNõ in Lima, Perú, between January 2007 to July 2011. RESULTS: We reviewed 61 medical records, there were 22 (36.1%) females and 39 (63.9%) males. The perimembranous VSDs was the more frequent (78.7%) followed the enter and way muscle VSDs (7.1%). The closure of the ventricular septal defects with the transatrial approach was the predominant surgical treatment (29.5%). The residual shunts were the complication in the surgical management of VSDs with more incidence. The auricular-ventricular block and congestive heart failure were the medical complications with more incidence (both with 8.2%). 47.5% of patients had no surgical complications. CONCLUSIONS: The ventricular septal defects surgical closure is the safe alternative for correction this anomaly in the INSN.

brief review on hybrid procedures in congenital heart disease

Hybrid approaches to management of complex congenital heart disease is a fast growing field. This is of particular importance in specific defects that cannot be dealt with ease and safety either in the surgical suite or catheterization laboratory because of certain patient and anatomic characteristics. This brief review outlines some of the defects in which a hybrid approach allows surgeons and interventional cardiologist to combine their expertise and provide the best approach to correct or palliate these defects with optimal outcomes

Fechamento percutâneo da Comunicação Interventricular muscular congênita / Percutaneous closure of congenital muscular ventricular septal defects

tratamento percutaneo da comunicação interventricular (CIV)congênita vem sendo realizado com bons resultados nos últimos 10 anos. Relatamos nossa experiência com a oclusão percutânea da CIV muscular congênita com próteses Amplatzer avaliando exequibilidade, segurança e eficâcia do método: Método: No período de setembro de 2002 a dezembro de 2007, foram realizados 9 procedimentos em múltiplos centros em 8 pacientes não-concecutivos (mediana de idade de 6 anos e de peso de 26 kg), sob anestesia geral e monitoração pela ecocardiografia transesofágica. Todas as CIVs eram únicas (7 na região trabecular média e 1 na porção anterior) e tinham diâmetro médio de 6,0 mais ou menos 2,1 mm. Houve embolização imediata de um dispositivo com resgate percutâneo. O procedimento foi repetido com sucesso após um ano. Todos os casos restantes foram realizados com sucesso, som complicações maiores. O índice de oclusão foi de 100 por cento no seguimento. Conclusão: Nessa pequena série de pacientes, a oclusão percutânea da CIV muscular congênita única com próteses Amplatzer foi um procedimento de fácil execução, seguro e altamente efizaz.

Background: Percutaneous treatment of muscular ventricular septal defects (VSD) has been performed with good results in the last 10 years. We report our experience with the percutaneous closure of congenital muscular VSDs with Amplatzer devices assessing the feasibility, safety and efficacy of the procedure. Methods: From 9/2002 to 12/ 2007, 9 procedures were performed in multiple centers in 8 non-consecutive patients (median age: 6 years; median weight: 26 kg) under general anesthesia and transesophageal echocardiographic monitoring. All VSDs were single (7 in the trabecular region and 1 anterior) and had a mean diameter of 6.0 ± 2.1 mm. There was one device embolization with immediate percutaneous device retrieval. This procedure was successfully repeated after year. The other cases were completed successfully without major complications. The rate of complete closure was 100% at follow-up. Conclusion: In this small series of patients, percutaneous closure of congenital single muscular VSD was relatively easy to perform, safe and highly effective.

Use of intraaortic balloon counter pulsation in a patient with tortuous aorta.

The intraaortic balloon pulsation (IABP) catheter is commonly used to treat left ventricular failure. The abnormality of the descending thoracic and abdominal aorta is considered as a relative contraindication for its insertion. We present here a patient with acute myocardial infarction with a post-infarct ventricular septal defect who presented with left ventricular failure. During coronary angiography, tortuous abdominal aorta was noted and IABP catheter was inserted under fluoroscopic guidance to support the cardiovascular system. This case is reported to encourage discussion on the use of IABP catheters in patients with tortuous aorta and avoidance of events described.

Uma rara patologia com uma rara associação / A rare pathology with a rare association

Relata-se o caso de uma paciente de 24 anos, assintomática, com história de correção cirúrgica de defeito do septo interventricular há 22 anos. Apresentava também, por ocasião da cirurgia, discreta coarctação de aorta. A análise ecocardiográfica evidenciou ocupação por massa trabeculada na região apical em ambos os ventrículos com possível presença de fluxo intertrabecular ao Doppler, e coarctação da aorta de moderada a severa. As imagens obtidas pela ressonância magnética cardíaca (RMC) confirmaram a suspeita ecocardiográfica de não-comparação miocárdica biventricular associada à coarctação de aorta. O estudo...

Transcatheter closure of perimembranous ventricular septal defect with amplatzer membranous occluder.

BACKGROUND: Use of trancatheter device closure for membranous ventricular septal defect is still in evolving phase. We report the early and mid-term results of our experience with the new asymmetric Amplatzer membranous ventricular septal defect occluder. METHODS AND RESULTS: We attempted, transcatheter closure of perimembranous ventricular septal defect using asymmetric Amplatzer occluder in 26 patients. The patients were selected on the basis of transthoracic and transesophageal echocardiographic assessment of the ventricular septal defect. The procedure was successful in 21 (81%) patients. The age ranged from 3 to 23 years, weight from 10 to 59 kg and defect size ranged from 3 to 9 mm (mean: 5 +/- 1.8 mm). One patient had situs inversus with dextrocardia: 11 had aneurysmal tissue partly occluding the defect and the device was deployed either across (n=6) or within the aneurysmal sac (n=5). Three patients developed high degree atrioventricular block on attempts to cross the defect with the sheath and the procedure was discontinued. In two patients it was not possible to place the sheath in left ventricle despite repeated attempts. There was a residual flow in 4 (19%) patients at 24 hours. Two patients developed bundle branch block and none had complete heart block. At follow-up (1-9 months, n=20), residual flow was seen in two patients. None developed late conduction defect, aortic regurgitation, infective endocarditis or hemolysis. CONCLUSIONS: Transcatheter closure of perimembranous ventricular septal defect can be performed safely and effectively with the new asymmetric Amplatzer occluder device in selected patients with good short- and midterm results. These devices can be deployed safely in and across and the aneurysmal sacs. In selected cases, this procedure is a satisfactory alternative to surgery.

Radiofrequency perforation for pulmonary atresia and intact ventricular septum.

Surgical or interventional perforation of atretic pulmonary valve as initial palliative procedure has been advocated in patients with pulmonary atresia with an intact ventricular septum. We report two infants with pulmonary atresia and intact ventricular septum, who were treated by radiofrequency perforation and balloon dilatation.

Transcatheter closure of perimembranous ventricular septal defect with immediate follow-up.

BACKGROUND: Surgical closure of membranous ventricular septal defect (VSD) is performed by open heart surgery with a small but significant morbidity and mortality. The authors reported here the first group of patients who underwent transcatheter closure of membranous VSD. METHOD: Patients who had membranous VSD with significant left to right shunt as shown by echocardiogram were selected for closure. A standard right and left heart catheterization was done under general anesthesia. A complete arteriovenous wire loop from the aorta to the left ventricle and VSD out into right ventricle was formed in order to guide the delivery sheath into the VSD from the right ventricle. The authors used the new Amplatzer Membranous VSD Occluder (AGA Medical Corp., USA) to deploy in the VSD position. RESULTS: There were 4 patients in the present study with age range of 2 to 24 years old (median: 4 years old). Their weight ranged from 10 to 45 kg (median: 12 kg). Qp:Qs ranged from 1.7-2.5 to 1. The device diameter selected was from 6 to 10 mm. All of them were placed without any residual shunt. At one month follow-up all the patients had echocardiographic examination which showed no evidence of residual shunt. CONCLUSIONS: The authors demonstrated that transcatheter closure of membranous VSD could be safely and effectively performed in small children. This device also provided an opportunity for closure of VSD in patients with pulmonary hypertension.

Interventional pediatric cardiology: device closures.

Surgical treatment of various septal defects has been long established. With the advances in transcatheter therapy dilatation techniques for valvular stenosis and vascular obstruction have become established procedures. Closure of septal defects in the catheterization laboratory has also been introduced; some of these have come into regular use in current practice. In 1967, Porstmann et al reported the use of Ivalon plug to close patent ductus arteriosus (PDA). Since then, several devices have been used including Rashkind PDA ocluder (not being used now), Gianturco coils, detachable coils (for small PDA), CardioSEAL and other umbrella devices and Amplatzer PDA occluder. Closure rates vary from 95-98% in most series, however, some of these devices are very expensive, more so, when compared to the cost of surgical ligation of PDA. Catheter closure of secundum atrial septal defect (ASD) has also been done by various devices like clamshell device, Sideris Buttoned device, ASDOS device, Amplatzer device and cardioSEAL. So far no device has been accepted as ideal for every case, however, Amplatzer device has been used most extensively. Issues such as completeness of endothelialisation, incidence of late arrhythmias, endocarditis remain uncertain. However, in select population of ASD cases with a central secundum defect, device closure is being used increasingly. Device closure of ventricular septal defect remains challenging and controversial and is probably available to a small group of children with defects that are difficult to close surgically and involve higher risk.

Comunicaçäo interventricular após infarto do miocárdio: análise ecocardiográfica de pacientes submetidos a pressäo expiratória final positiva / Ventricular septal defect following myocardial infarction ­ echocardiographic analysis of patients submitted to positive final expiratory pressure

Comunicaçäo interventricular (CIV) como complicaçäo do infarto agudo do miocárdio (IAM) ocorre em 0,5 a 1,0% dos pacientes e freqüentemente resulta em falência biventricular. Avaliamos os efeitos ecocardiográficos da pressäo expiratória final positiva (PEEP) sobre as dimensöes dos ventrículos direito (VD) e esquerdo (VE) em três pacientes que desenvolveram CIV pós-infarto, complicado com insuficiência respiratória aguda. Em todos os casos houve súbito aumento nas dimensöes do VD e, provavelmente através da interdependência ventricular, uma proporcional diminuiçäo nas dimensöes do VE. Concluímos que a terapia com PEEP neste grupo de pacientes näo teve efeito benéfico comprovado e provavelmente acentuou a dilataçäo ventricular direita

Interventricular septal rupture is a life-threatening complication occuring in 0,5 to 1,0% of patients following acute myocardial infarction and often results in right and left ventricular failure. This study aimed at evaluating the echocardiographic effects of PEEP on right (RV) and left (LV) ventricular dimension in three patients who developed a postinfarction septal defect and in whom acute respiratory failure was a preterminal event. The effects of PEPP on the heart remain controversial. We observed in all three patients a sudden large increase in RV dimensions and hence, probably through ventricular interdependence, a proportional decrease in LV dimensions. The progressive leftward septal displacement with increasing levels of PEEP probably contributed to reduce LV compliance. We concluded that PEEP therapy in this group of patients had no proven beneficial effects and probably contributed to further RV dilatation and failure