Caracterización de la enfermedad de Kawasaki en niños entre 3 meses y 15 años en 2 instituciones de salud en Bogotá, Colombia / Characterization of Kawasaki disease in children between 3 months and 15 years in 2 health institutions in Bogotá, Colombia

Resumen Objetivo: Disminuir la brecha del conocimiento de la Enfermedad de Kawasaki (EK) y dar herramientas al personal médico por medio de la descripción de la demografía, presentación clínica, los hallazgos de laboratorio, la frecuencia de lesiones coronarias y desenlaces en 2 instituciones de salud en Bogotá, Colombia. Metodología: Estudio observacional retrospectivo mediante la revisión de historias clínicas de los códigos CIE-10 de paciente pediátricos donde se evaluaron características demográficas, presentación clínica, datos paraclínicos (incluidos hallazgos ecocardiográficos), tratamiento recibido y respuesta a este, en pacientes admitidos entre junio de 2015 y junio de 2020. Resultados: Se incluyeron 36 pacientes entre 3 meses y 15 años. La edad media de los pacientes fue de 2.9 años, siendo la EK más frecuente en niños en una rela ción 2:1. El 61.1% presentó EK completa o clásica, el 30.5% EK incompleta y el 8.3% EK atípica. Todos los pacientes recibieron inmunoglobulina intravenosa antes del día 10 del curso de la enfermedad, con remisión de la fiebre antes de 12 horas luego de la administración. La incidencia de compromiso coronario fue de 30.6%. Conclusiones: La Enfermedad de Kawasaki tiene un curso clínico característico que afecta especialmente a niños menores de 5 años. Es una entidad clínica que, al ser reconocida con mayor frecuencia por pediatras, permite instaurar diagnóstico y tratamiento tempranos evitando complicaciones y secuelas a mediano y largo plazo.

Abstract Objective: To reduce the knowledge gap about Kawasaki Disease (KD) and to provide tools to medical personnel through the description of demographics, clinical presentation, laboratory findings, frequency of coronary lesions and outcomes in 2 health institutions in Bogota Colombia. Methodology: Retrospective observational study by reviewing the clinical records of the ICD-10 codes of pediatric patients where demographic characteristics, clinical presentation, paraclinical data (including echocardiographic findings), treatment received and response to it were evaluated, in patients admitted between June 2015 and June 2020. Results: The mean age of the patients was 2.9 years, being KD more frequent in boys a 2:1 ratio. 61.1% had complete or classic KD, 30.5% had incomplete KD, and 8.3% atypical KD. All patients received intravenous immunoglobulin before day 10 of the course of the disease, with remission of fever within 12 hours after administration. The incidence of coronary compromise was 30.6%. Conclusions: KD has a characteristic clinical course that especially affects children under 5 years. A more frequent recognition of this clinical entity by pediatricians, allows for an early diagnosis and treatment avoiding complications and sequelae in the medium and long term.

Frecuencia de lesiones coronarias epicárdicas en pacientes con cardiopatía dilatada en un Departamento de Cardiología en el periodo 2015 - 2021 / Frequency of epicardial coronary lesions in patients with Dilated Heart Disease in a Department of Cardiology in the period from 2015 to 2021

RESUMEN Introducción: la cardiopatía dilatada definida como la dilatación de cavidades cardiacas de múltiples etiologías tiene una prevalencia en adultos de alrededor de 1/2.500 individuos. La ecocardiografía transtorácica determina la dilatación de cavidades y evalúa la función ventricular mientras que la cinecoronariografía permite identificar la etiología principalmente isquémica por afección de arterias coronarias epicárdicas. La utilización de la cinecoronariografía como primera línea para el diagnóstico etiológico, implica riesgos propios de un método invasivo con un alto costo en recursos económicos, por lo cual es imperioso determinar el posible resultado de dicho procedimiento. Objetivo: determinar la frecuencia de lesiones coronarias epicárdicas en pacientes con Cardiopatía Dilatada en un Departamento de Cardiología en el periodo del 2015 ­ 2021. Metodología: estudio observacional, descriptivo, retrospectivo y de corte transversal con muestreo no probabilístico por conveniencia, mediante la revisión en la base de datos en un Departamento de Cardiología. Resultados: este estudio incluyó a 88 pacientes, con disnea en clase funcional II-IV de la NYHA y cardiopatía dilatada por ecocardiografía, de etiología no filiada. De éste grupo, 66 % eran varones y 34 % mujeres, la media de edad fue de 56 ± 11,19 años. Al ser sometidos a cinecoronariografía diagnostica, se constató que el 23 % presentó lesiones coronarias epicárdicas, siendo la más frecuente la lesión de un vaso (55 %), predominando el sexo masculino en aquellos con o sin lesiones coronarias epicárdicas. Conclusiones: la frecuencia de lesiones coronarias epicárdicas en pacientes con cardiopatía dilatada, es baja.

ABSTRACT Introduction: dilated heart disease defined as the dilation of cardiac cavities of multiple etiologies has a prevalence in adults of around 1/2.500 individuals. Transthoracic echocardiography determines chamber dilation and evaluates ventricular function, while coronary angiography can identify the mainly ischemic etiology due to involvement of the epicardial coronary arteries. The use of coronary angiography as the first line for the etiological diagnosis implies risks of an invasive method with a high cost in economic resources, for which it is imperative to determine the possible result of said procedure. Objective: to determine the frequency of epicardial coronary lesions in patients with Dilated Heart Disease in a Departmento de Cardiología in the period 2015-2021. Methodology: observational, descriptive, retrospective and cross-sectional study with non-probabilistic convenience sampling, by reviewing the database in a Departmento de Cardiología. Results: this study included 88 patients, with dyspnea in NYHA functional class II-IV and dilated heart disease by echocardiography, of unknown etiology. Out of this group, 66% were men and 34 % women, the mean age was 56 ± 11.19 years. When undergoing diagnostic cinecoronariography, it was found that 23 % had epicardial coronary lesions, the most frequent being a lesion of a vessel (55 %), with the male sex predominating in those with or without epicardial coronary lesions. Conclusions: the frequency of epicardial coronary lesions in patients with dilated heart disease is low.

Beneficio económico en la utilización de reserva fraccional de flujo en lesiones coronarias intermedias y su impacto clínico a un año / Economic benefits of fractional flow reserve utilization on intermediate lesions and its clinical impact after one year-follow up

Resumen Antecedentes: La reserva de flujo fraccional (FFR) es una herramienta con evidencia demostrada para guiar las angioplastias coronarias. El reembolso por los sistemas de cobertura de salud es parcial o nulo a pesar de frecuentemente diferir la angioplastia. Nuestro objetivo fue determinar el beneficio económico de la utilización del FFR en la evaluación de lesiones intermedias, y evaluar asimismo puntos finales clínicos en el seguimiento a un año. Métodos: Estudio observacional prospectivo que incluyó una cohorte de pacientes consecutivos con lesiones coronarias intermedias, evaluadas con FFR, entre abril de 2013 y marzo de 2016. Para el análisis económico se evaluaron los recursos específicos utilizados para la realización del procedimiento. Se analizaron puntos finales clínicos (muerte cardiovascular, revascularización de la arteria objetivo e infarto agudo de miocardio) durante la internación y en el seguimiento a un año Resultados: Se incluyeron 222 lesiones en 151 pacientes consecutivos. Se registró FFR positivo en el 26.1% de las lesiones evaluadas. Se estimó que sin la utilización de FFR, 126 pacientes hubieran sido tratados con angioplastia transluminal coronaria y 25 con cirugía de revascularización miocárdica. El costo estimado con la utilización de FFR fue US$ 891,290.08, mientras que sin el mismo hubiera sido de US$ 1,557,352. Esto implicó un ahorro del 43% de los gastos. Se observaron una muerte de origen cardiovascular y dos reinternaciones en el grupo FFR positivo en el seguimiento a un año. Conclusiones: La revascularización de lesiones intermedias guiada por FFR resultó en un beneficio económico al reducir los costos generales sin resultar clínicamente perjudicial.

Abstract Background: Fractional flow reserve (FFR) is a proven technology for guiding percutaneous coronary intervention, but it is not reimbursed despite the fact that it frequently allows to defer revascularization. Our goal was to determine the economic benefit of FFR on intermediate lesions, as well as the clinical endpoints at 1 year follow up. Methods: Observational prospective study that included consecutive patients with intermediate lesions evaluated with FFR between April 2013 and March 2016. For the economic analysis we evaluated the specific resources used during the procedure. Clinical endpoints including cardiovascular death, target lesion revascularization and acute myocardial infarction, were followed up over a one-year period. Results: FFR was performed on 222 lesions in 151 consecutive patients. FFR was positive in 26.1% of the assessed lesions. The estimated total cost using FFR was US$ 891,290.08 while cost estimate without FFR was US$ 1,557,352, meaning 43% in cost savings. There was one cardiovascular death and two readmissions during follow up in the positive FFR group. Conclusions: FFR guided revascularization on intermediate coronary lesions resulted in an economic benefit by reducing overall costs without harming clinical outcomes.

Minoca, infarto con coronarias normales ¿La caída del paradigma? / MINOCA, infarction with normal coronaries. The fall of the paradigm ?

El infarto agudo de miocardio es la principal causa de muerte en el mundo, siendo la obstrucción coronaria aterosclerótica el hallazgo más frecuente. Sin embargo, el 6% de los pacientes no presenta lesiones angiográficamente significativas, definidas por obstrucción de la luz vascular mayor al 50%. Estos casos se han definido bajo el término MINOCA (myocardial infarction with non-obstructive coronary arteries). Suelen ocurrir en mujeres jóvenes, con factores de riesgo cardiovascular, elevación de biomarcadores cardíacos e infradesnivel del segmento ST en el electrocardiograma. Las principales etiologías son la miocarditis, el síndrome de Takotsubo y el infarto subendocárdico. Presentamos el caso de una mujer de 65 años con antecedentes de hipertensión arterial y bloqueo completo de rama izquierda previo, que ingresó con ángor, imagen de bloqueo completo de rama izquierda en el electrocardiograma con criterios de Sgarbossa negativos y biomarcadores cardíacos positivos. En el ecocardiograma evidenció trastorno en la motilidad de la pared inferolateral y en la coronariografía solo una lesión no significativa (40%) en segmento proximal de la arteria circunfleja. La cardiorresonancia, en la secuencia de realce tardío de gadolinio, mostró retención de contraste subendocárdico a nivel de los segmentos inferolateral medial con extensión lateroapical compatible con infarto correspondiente a territorio de arteria circunfleja. Este caso ilustra un ejemplo de MINOCA secundario a infarto subendocárdico con trombólisis espontánea, en el que la presentación clínica fue típica, sin embargo en la coronariografía no se observaron lesiones significativas, por lo que fue necesario complementar con otro método de imágenes: la cardiorresonancia.

Myocardial infarction is the leading cause of death in the world, being the coronary atherosclerotic obstruction the main finding. Although 6% of all the patients had no significant coronary arteries disease on coronary angiography, defined by lumen vascular obstruction greater than 50%. This type of cases was defined by the term MINOCA (myocardial infarction with non-obstructive coronary arteries). They are usually young women, with cardiovascular risk factors, high cardiac biomarkers with non-ST elevation in the electrocardiogram. The main etiologies are myocarditis, Takotsubo syndrome and subendocardial myocardial infarction. We present the case of a 65 years-old woman with history of hypertension and complete left bundle branch block, who was admitted to the emergency department with typical chest pain, complete left bundle branch block in the electrocardiogram, with negative Sgarbossa criteria and positive cardiac biomarkers. The echocardiography evidenced inferolateral regional wall motion abnormalities, and the coronary angiography a single non-significative lesion (40%) in the proximal segment of the circumflex artery. Cardiac magnetic resonance evidenced subendocardial late gadolinium enhancement in inferolateral medial with latero-apical extension segments consistent with circumflex artery-related infarction. This case illustrates an example of MINOCA secondary to myocardial infarction with posterior spontaneous thrombolysis, in which the clinical presentation was typical, however the coronary angiography showed non obstructive lesions. Therefore, another complementary imaging methods were needed such as the cardiac magnetic resonance.

Treatment of complex coronary lesions by excimer laser coronary atherectomy: the experiences of single center / 中国实用内科杂志

OBJECTIVE: The aim of this study was to introduce the experience in treatment of acute ST segment elevation myocardial infarction(STEMI), saphenous vein graft(SVG), Chronic total occlusion(CTO),In-stent restenosis(ISR)and diffuse calcification lesions by excimer laser coronary atherectomy(ELCA). METHODS: Twenty-two patients were enrolled through our center from November 2016 to May 2017 and ELCA was performed on 22 lesions.The clinical and procedure endpoints were recorded. RESULTS: All the lesions were successfully crossed with laser catheterand and finally were performed by ELCA. Five cases(22.7%)with STEMI, ten cases(45.5%) with SVG lesions,five cases with ISR and other cases were CTO(4.5%) and Calcification(4.5%) lesions.Seventeen patients underwent balloon dilatation and successful implantation of drug-eluting stents(DES) and one patients was treated with drug-eluting balloon(DEB).the procedual and clinical success rates were 100%. At 6.6±2.7 months follow-up, there were no major adverse cardiac events(MACEs) and ELCA relatedcomplications recorded. Conclution This limited evdiences showed that treatment of complex coronary lesions by excimer laser coronary atherectomy may be a Safe and effective choice.It can be further popularized in complex coronary artery disease.

Effect of Lp(a) on in-stent restenosis and non-target coronary lesions in CAD patients with drug-eluting stents / 解放军医学杂志

Objective To explore the effect of lipoprotein(a) [Lp(a)] on in-stent restenosis and non-target coronary lesions in coronary artery disease (CAD) patients implanted with drug-eluting stents. Methods One hundred and seventy-four patients, diagnosed as CAD and underwent percutaneous coronary intervention (PCI) with the implantation of drug-eluting stents (DES), were enrolled in present study; all of them were performed another elective PCI or revascularization within 1-4 years after their previous procedures. Thirty-one of enrolled patients were discovered to have in-stent restenosis. The relationship between Lp(a) and in-stent restenosis and the development of non-target coronary lesions were analyzed in groups stratified by the presence of in-stent stenosis or Lp(a) levels, and the independent risk factors of both in-stent restenosis and non-target lesions were also analyzed by multivariate logistic regression analysis. Results In CAD patients with DES, Lp(a) level in patients with in-stent restenosis showed a significant increase than those with the Lp(a) level non-restenosis [(437.57±391.60) mg vs. (279.46±288.06) mg, P=0.04]. In following analysis comparing lipid profiles and coronary angiography results between low and high Lp(a) groups, the percentage of triple-vessel disease and left main plus triple-vessel disease appeared to be statistically higher in high Lp(a) group than those in low Lp(a) group (P=0.022). Multivariate logistic regression analysis revealed that high level of Lp(a) and much number of stents implanted were the independent risk factors for in-stent restenosis of DES. In comparing the characteristics of coronary angiography and results of quantitative coronary angiography, number of cases with non-target lesions, presence of in-stent restenosis, minimal lumen diameter and in-stent late lumen loss were all significantly higher in high Lp(a) group than those in low Lp(a) group (P<0.05), and high level of Lp(a) was again proved to be an independent risk factor for non-target lesions in patients with DES (P=0.001). Conclusion Elevated Lp(a) level is an independent risk factor for both in-stent restenosis and the development of non-target coronary lesions, and is closely related to the relapse and aggravation of coronary artery disease.

Application of transradial sheathless interventional technique in treatment of bifurcation coronary lesions / 实用医学杂志

Objective To summarize the experience of applying transradial sheathless technique in treat-ment of bifurcation coronary lesions. Methods The clinical data on 39 patients with bifurcation coronary lesions who received transradial PCI using sheathless guide catheter produced by ASAHI or self-made sheathless guide catheter were retrospectively analyzed. Passing ability of sheathless guide catheter, success rate and complications of PCI were observed.Results There were 10 patients with left main bifurcation lesions, 29 left anterior descend-ing branch and diagonal branch bifurcation lesions. 33 patients were treated using sheathless of 7.5 Fr and 6 were treated by self-made sheathless guide catheter.PCI achieved expected goal.No catheter placement related complica-tions, cardiovascular or cerebrovascular events were observed in 39 patients in their hospital stay. Conclusions Transradial sheathless technique can be applied in of coronary lesions. Sheathless of 7.5 Fr is easy to use and has perfect passing ability.Sheathless guide catheter is effective,safe and highly practicable.Both procedures are worth of clinical application.

Treatment of complex coronary lesions by excimer laser coronary atherectomy:the initial experiences in China / 中国介入心脏病学杂志

Objective Excimer laser coronary atherecomy ( ELCA) has been recently used for the treatment of complex coronary lesions including calcified stenosis , chronic total occlusions and in-stent restenosis. Such complex lesions are difficult to adequately treat with balloon angioplasty and /or intracoronary stenting.The aim of this study was to introduce our early experiences in using ELCA in China . Methods Fifteen patients were enrolled through our center from March 2015 to April 2016 , and excimer laser coronary angioplasty was performed on 15 lesions.Eleven patients were previously failed cases either from uncrossable balloon ( 9 lesions ) or expandable balloon ( 6 lesions ) . The procedure and clinical endpoints were recorded .Results Laser catheter with 0.9 mm diameters were used in all 15 coronary lesions.All the lesions were successfully crossed with laser catheter and finally dilated with balloon .The procedural success rate was 100%.Drug eluting stents ( DES ) were implanted in 86.7% lesions and 2 cases were treated with drug eluting balloon .Clinical success was obtained in all patients (100%).There was no dissection , major side branch occlusion , spasm, no-reflow phenomenon nor acute vessel closure . Conclusions This study shows that laser-facilitated coronary angioplasty is a simple , safe and effective device for the management of complex coronary lesions .

Relationship between glycated albumin and extent of coronary lesions,GRACE score in patients with a-cute non-ST segmentelevation myocardial infarction / 中国综合临床

Objective To investigate the relationship between glycated albumin ( GA ) and extent of coronary lesions, GRACE score in patients with acute non?ST segmentelevation myocardial infarction ( NSTEMI) . Methods A total of 226 NSTEMI patients who successfully underwent coronary angiography ( CAG) were enrolled in the study. Groups:( 1) According to GA level,the patients were divided into 3 groups:GA17. 0% group. ( 2) According to the extent of coronary le?sions,the patients were divided into 2 groups:single or double branch lesion group,three and/or left main lesion group. ( 3) According to the GRACE score,the patients were divided into 3 groups:Low?risk GRACE score≤108 points group,Medium?risk 108 points140 points group. The extent of coronary lesions was evaluated by Gensini score. The clinical characteristics and Gensini score,GRACE score of each group were compared. Pearson/Spearman correlation analysis and logistic regression were used to analyze the association of GA with the severity of coronary artery disease and GRACE score. Results With glycated albumin increasing,the Gensini score(56. 51±38. 57,68. 30±35. 57,77. 38±36. 52),GRACE score(139. 43±29. 96,149. 77±38. 33,170. 75±27. 52) increased significantly,and significant differences were found between groups( F=5. 587,16. 006,P=0. 004,0. 000) . The ejection fraction( EF) of 3 groups were signif?icantly decrease((58. 30±13. 95)%,(56. 45±10. 79)%,(53. 06±12. 51)%;F=3. 126,P=0. 046). Proportion of severe coronary lesions of 3 groups were increase significantly( 59. 5%( 44/74) ,68. 2%( 60/88) ,87. 5%( 56/64),χ2=13. 528,P=0. 001). The level of GA in three and/or left main lesion group was higher than that in sin?gle or double branch lesion group((13. 92±3. 14)% vs. (16. 80±3. 58)%,t=-5. 693,P=0. 000). The level of GA in High?risk group was higher than that in Low?risk group ( ( 14. 70 ± 1. 54 )% vs. ( 16. 63 ± 4. 02 )%, t=6. 512,P=0. 002) . Correlation analysis showed that the level of GA had significant positive correlation with Gensini score and GRACE score(r=0. 309,0. 265;P=0. 000,0. 000),while had a negative correlation with LVEF(r=-0. 149,P=0. 034). Logistic regression analysis indicated that GA was independent risk factors for severity of coronary artery disease in patients with NSTEMI who successfully underwent CAG( OR=1. 441,95%CI:1. 160?1. 790,P=0. 001) . Conclusion GA level is increase in NSTEMI patients with severe coronary ar?tery disease and risk stratification high. GA is the independent risk factors for severity of coronary artery disease in patients with NSTEMI;GA has significant correlation with dangerous degree in patients with NSTEMI.

The study of heart-type fatty acid binding protein in the PCI therapy for patients with acute myocardial infarction / 中华急诊医学杂志

Objective To observe the change and clinical significance of the heart type fatty acid binding protein (H-FABP) in ST Segment Elevation Myocardial Infarction (STEMI) after percutaneous coronary intervention (PCI).Methods Of 178 STEMI patients were recruited and were separated as ST segment drop group (137) and ST segment non-drop group (41).All the patients received H-FABP and cTnI tests,and re-tested H-FABP on 1 h,6 h,12 h and 24 h after the PCI,and re-tested cTnI on 12 h and 24 h after the PCI.Also,the ST segment drop amplitude (ΣSTR) was measured 2 h after the PCI.Results The demographics of both groups were similar.In both groups,the H-FABP on 6 h after PCI was significantly higher than the value measured prior to PCI.In the ST segment drop group,the H-FABP was reduced to normal value on 24 h after PCI,while it was not in the ST segment non-drop group.Conclusions The H-FABP elevation is associated with the severity of coronary lesions in ST segment elevation myocardial infarction,and the PCI may be involved in the H-FABP changes.ΣSTR≥50％ and normal HFABP may be used as index for judgment of myocardial injury and myocardial reperfusion.

Perfusión miocárdica con Tc-99Msestamibi y dipiridamol e imágenes SPECT en el bloqueo completo de rama izquierda del Haz de His / Myocardial perfusion with Tc-99Msestamibi and dipyridamole, and spect images during complete block of the left branch of the bundle of his

Propósito del trabajo: Revisar los resultados de perfusión miocárdica en reposo y post estrés farmacológico con dipiridamol e imágenes SPECT en pacientes con Bloqueo Completo de Rama Izquierda del Haz de His y comprar resultados cuando se tienen coronarias angiográficamente normales y con obstrucciones coronarias críticas. Método: Se revisaron los resultados de 50 estudios de perfusión miocárdica de los pacientes con Bloqueo de Rama Izquierda del Haz de His y se analizó la perfusión segmentaria comparándola con la coronariografía diagnóstica. Resultados: De los 15 pacientes estudiados, divididos en 2 grupos, 9 con coronarias angiográficamente normales y 6 con lesiones coronarias significativas, no es posible establecer un patrón de perfusión típico para cada entidad por el pequeño tamaño de la muestra y pone de manifiesto que los defectos de perfusión no se explican únicamente por las alteraciones electrocardiográficas pues influyen factores como la hipertensión telediastólica ventricular izquierda sobre el septum interventricular como consecuencia de la pérdida de sincronía en la contracción ventricular. Conclusiones: La perfusión miocárdica regional en pacientes con BRIHH está alterada en el 95% de los casos sin relación a la presencia de lesiones coronarias significativas.

AIM: To review the results of myocardial perfusion during rest and post-pharmacological stress induced by dipyridamole and analyze the SPECT images in patients with complete left bundle branch block LBBB, comparing the results in the presence of a normal coronary angiographic study and with critical coronary obstructions. Methods: Results from 50 studies of myocardial perfusion of patients with complete block of the LBBB were reviewed and segmental perfusion was analyzed comparing these results with those obtained with those from the diagnostic coronariography. Results: From the 15 studied patients, divided in two groups, 9 with angiographically normal coronaries and 6 with significant coronary lesions, it was not possible to establish a typical perfusion pattern due to the small size of the sample, revealing that the perfusion defects cannot be explained only by the electrocardiographic alterations since other factors participate, such as left ventricular telediastolic hypertension on the interventricular septum as a consequence of the loss of synchrony in ventricular contraction. Conclusions: Regional myocardial perfusion in patients with complete block of the LBBB is altered in 95% of the cases without relation with the presence of significant coronary alterations.

Angioplastia coronária de lesöes moderadas (50 a 60%) / Coronary angioplasty of moderate lesions (50 to 60%)

Objetivo - Avaliar a eficácia da angioplastia coronária em pacientes com lesöes moderadas (obstruçäo 50 a 60% da luz arterial). Material e Métodos - Cento e trinta e nove pacientes, sendo 108 (78%) homens, com idades média de 55 anos, submetidos à angioplastia coronária entre agosto de 1983 e janeiro de 1989. O quadro clínico era angina estável em 91 (65%) e angina instável em 48 (35%). Lesäo uniarterial foi observada em 117 pacientes (84%); os restantes 22 (16%) exibiam doença biarterial. Resultados - Obteve-se sucesso primário em 130 (94%) casos. Todos os pacientes biarteriais foram revascularizados de forma completa. Entre os insucessos, houve 2 (1,4%) casos de infarto do miocárdio e 4 (2,8%) de cirurgia de emergência. Näo houve óbitos hospitalares. Cento e dezenove (92%) dos com sucesso foram acompanhados tardiamente (média de 31 meses). Constatamos 85 (71%) assintomáticos e recidiva dos sintomas em 27 (23%). Houve 2 óbitos tardios de causa cardiovascular e 5 por doenças sistêmicas. Em 54 reestudos angiográficos, observamos em 42 (78%) manutençäo do resultado inicíal, e em 12 (22%) reestenose, em grau de obstruçäo médio mais severo que pré-angioplastia. Conclusäo - Angioplastia coronária de lesöes moderadas apresenta elevado percentual de sucesso primário (965); entretanto, os índices de complicaçöes maiores e reestenose assemelham-se aos observados para obstruçöes de grau severo, o que nos leva a reservar sua indicaçäo para os casos de alto risco clínico ou que apresentem evidências objetivas de isquemia miocárdica, apesar de terapêutica medicamentosa