[Pediatric cardiovascular surgical data base registry in México. First report]. / El Registro Mexicano de Cirurgía Cardiaca Pediátrica. Primer informe.

INTRODUCTION: Current world tendency is the detection of health problems in order to offer solution alternatives by means of the development of computarized data bases. OBJECTIVE: To present the results of a computerized data base developed for the registry of pediatric cardiac surgery with the support of Asociación Mexicana de Especialistas en Cardiopatías Congénitas (AMECC, A.C.). MATERIAL AND METHODS: A one-year analysis (from August 1, 2011 to July 31, 2012) of a computerized data base was performed with the support of AMECC and the participation of the most important Mexican institutions for pediatric surgical heart disease health care, particularly for the uninsured population. RESULTS: There were 7 health institutions voluntarily incorporated to the national data base registry, and in the first year of observation, 943 surgical procedures in 880 patients and 7% re-operations (n = 63), were reported. Patients up to one-year old accounted for 38%. The most frequent types of operated congenital heart diseases were: patent ductus arteriosus (n = 96), ventricular septal defect (n = 86), tetralogy of Fallot (n = 72), atrial septal defect (n = 68), and aortic coarctation (n = 54). Elective procedures were 90%, and 62% of them were performed with the use of cardiopulmonary bypass. Overall mortality was 7.5% with the following RACHS-1 score risk distribution: 1 (n = 4.2%), 2 (n = 19.6%), 3 (n = 22.8%), 4 (n = 12.19%), 5 (n = 1.25%), 6 (n = 6.44%) and not classifiable (n = 2.9%). CONCLUSIONS: Although this analysis gives a representative vision of the cardiovascular surgical health care for the uninsured national pediatric population, the incorporation of other health institutions to this data base may lead us to have a most realistic overview in relation to the surgical cardiovascular health care for the up to 18 year-old population.

Clinical evidence of the antiarrhythmic effect of a magistral suspension of propafenone: a case report.

Propafenone is an antiarrhythmic that has been used for the treatment of tachiarrytmias in both adults and children. The aim of this study was to analyze the pharmacologic effect of a magistral suspension of propafenone, due to lack of an adequate commercial formulation for use in children. In this study we present, a case of a 2-year-old boy that was diagnosed with Wolff-Parkinson White syndrome and treated with a magistral suspension of propafenone. He has now been one year with no symptoms, no tachycardia and no cyanosis. The clinical status of the patient under treatment with propafenone was improved through constant medical care in the Cardiological Health Care Unit. The use of a magistral formulation of propafenone developed in our laboratory offers a temporal solution due to lack of medicines for children.

Elevated plasma endothelin-1 and pulmonary arterial pressure in children exposed to air pollution.

BACKGROUND: Controlled exposures of animals and humans to particulate matter (PM) or ozone air pollution cause an increase in plasma levels of endothelin-1, a potent vasoconstrictor that regulates pulmonary arterial pressure. OBJECTIVES: The primary objective of this field study was to determine whether Mexico City children, who are chronically exposed to levels of PM and O(3) that exceed the United States air quality standards, have elevated plasma endothelin-1 levels and pulmonary arterial pressures. METHODS: We conducted a study of 81 children, 7.9 +/- 1.3 years of age, lifelong residents of either northeast (n = 19) or southwest (n = 40) Mexico City or Polotitlán (n = 22), a control city with PM and O(3) levels below the U.S. air quality standards. Clinical histories, physical examinations, and complete blood counts were done. Plasma endothelin-1 concentrations were determined by immunoassay, and pulmonary arterial pressures were measured by Doppler echocardiography. RESULTS: Mexico City children had higher plasma endothelin-1 concentrations compared with controls (p < 0.001). Mean pulmonary arterial pressure was elevated in children from both northeast (p < 0.001) and southwest (p < 0.05) Mexico City compared with controls. Endothelin-1 levels in Mexico City children were positively correlated with daily outdoor hours (p = 0.012), and 7-day cumulative levels of PM air pollution < 2.5 mum in aerodynamic diameter (PM(2.5)) before endothelin-1 measurement (p = 0.03). CONCLUSIONS: Chronic exposure of children to PM(2.5) is associated with increased levels of circulating endothelin-1 and elevated mean pulmonary arterial pressure.

Mexican registry of pediatric cardiac surgery. First report.

BACKGROUND: Currently, there is a spreading worldwide tendency to characterize health issues and to propose alternative solutions via the creation of computerized databases. The aim of this study was to present the results in a computerized database of pediatric cardiac surgeries developed under the auspices of the Mexican Association of Specialists in Congenital Heart Diseases (Asociación Mexicana de Especialistas en Cardiopatías Congénitas A.C) and coordinated by the collegiate group of Pediatric Cardiology and Surgery as petitioned by the National Institutes of Health and High Specialty Hospitals Coordinating Commission. METHODS: We analyzed all cases registered in the database during a 1-year observation period (August 1, 2011 to July 31, 2012) by all major Health Ministry-dependent institutes and hospitals offering surgical services related to pediatric cardiopathies to the non-insured population. RESULTS: Seven institutions participated voluntarily in completing the database. During the analyzed period, 943 surgeries in 880 patients with 7% reoperations (n=63) were registered. Thirty-eight percent of the surgeries were performed in children <1 year of age. The five most common cardiopathies were patent ductus arteriosus (n=96), ventricular septal defect (n=86), tetralogy of Fallot (n=72), atrial septal defect (n=68), and aortic coarctation (n=54). Ninety percent of surgeries were elective and extracorporeal circulation was used in 62% of surgeries. Global mortality rate was 7.5% with the following distribution in the RACHS-1 score categories: 1 (n=4, 2%), 2 (n=19, 6%), 3 (n=22, 8%), 4 (n=12, 19%), 5 (n=1, 25%), 6 (n=6, 44%), and non-classifiable (n=2, 9%). CONCLUSIONS: This analysis provides a representative view of the surgical practices in cardiovascular diseases in the pediatric population at the national non-insured population level. However, incorporating other health institutions to the national registry database will render a more accurate panorama of the national reality in surgical practices in the population <18 years of age.

Mexican registry of pediatric cardiac surgery: First report

Background: Currently, there is a spreading worldwide tendency to characterize health issues and to propose alternative solutions via the creation of computerized databases. The aim of this study was to present the results in a computerized database of pediatric cardiac surgeries developed under the auspices of the Mexican Association of Specialists in Congenital Heart Diseases (Asociación Mexicana de Especialistas en Cardiopatías Congénitas A.C) and coordinated by the collegiate group of Pediatric Cardiology and Surgery as petitioned by the National Institutes of Health and High Specialty Hospitals Coordinating Commission. Methods: We analyzed all cases registered in the database during a 1-year observation period (August 1, 2011 to July 31, 2012) by all major Health Ministry-dependent institutes and hospitals offering surgical services related to pediatric cardiopathies to the non-insured population. Results: Seven institutions participated voluntarily in completing the database. During the analyzed period, 943 surgeries in 880 patients with 7% reoperations (n = 63) were registered. Thirty-eight percent of the surgeries were performed in children <1 year of age. The five most common cardiopathies were patent ductus arteriosus (n = 96), ventricular septal defect (n = 86), tetralogy of Fallot (n = 72), atrial septal defect (n = 68), and aortic coarctation (n = 54). Ninety percent of surgeries were elective and extracorporeal circulation was used in 62% of surgeries. Global mortality rate was 7.5% with the following distribution in the RACHS-1 score categories: 1 (n = 4, 2%), 2 (n = 19, 6%), 3 (n = 22, 8%), 4 (n = 12, 19%), 5 (n = 1, 25%), 6 (n = 6, 44%), and non-classifiable (n = 2, 9%). Conclusions: This analysis provides a representative view of the surgical practices in cardiovascular diseases in the pediatric population at the national non-insured population level. However, incorporating other health institutions to the national registry database will render a more accurate panorama of the national reality in surgical practices in the population <18 years of age.

Evaluación del efecto antiarrítmico de propafenona en niños con taquicardia paroxística supraventricular / Evaluation of anti-arrhythmic effect of propafenone in children with supraventricular paroxistic tachycardia

Introducción. Las taquicardias supraventriculares (TSV) son arritmias tratadas con propafenona, debido a su utilidad en población pediátrica. Objetivo: evaluar el efecto antiarrítmico de propafenona, así como su farmacocinética en niños con TSV. Métodos. Se trata de un estudio prospectivo donde se incluyeron niños del servicio de cardiología con diagnóstico de TSV. La evolución clínica de los pacientes fue evaluada mediante monitoreo electrocardiográfico; además, se hizo un estudio farmacocinético de propafenona, utilizando un método de cromatografía de líquidos de alta resolución con detección por fluorescencia. Resultados. Se revisaron los expedientes de 85 niños con diagnóstico de TSV durante el período de 2000 a 2007; actualmente existen 11 pacientes que son tratados con propafenona, y en 3 de ellos se hizo el estudio farmacocinético. El estudio electrocardiográfico mostró trazos normales después del tratamiento con propafenona. Los parámetros farmacocinéticos del medicamento fueron similares a los reportados en estudios previos. Conclusiones. En los pacientes incluidos se observó remisión de la arritmia; además, sus parámetros farmacocinéticos fueron semejantes a los reportados en la literatura, por lo que el uso del medicamento puede ser considerado en niños con dicho padecimiento.

Introduction. Supraventricular tachycardia (SVT) involves arrhythmias treated with propafenone in children due to its utility. The aim of this study was to evaluate the anti-arrhythmic effect of propafenone as well as its pharmacokinetics in children with SVT. Methods. A prospective study was conducted in children with SVT. The evolution of their treatment with propafenone was followed by EKG monitoring. A pharmacokinetic study was carried out by using HPLC with fluorescence detection. Results. The files of 85 children with SVT from 2000 to 2007 were reviewed; currently 11 patients are treated with propafenone, Pharmacokinetics study was performed in 3 of the current patients. The EKG study showed regular registers after propafenone treatment. Propafenone pharmacokinetic parameters were similar to those reported previously. Conclusions. The patients included showed an arrhythmia remission, and their pharmacokinetic parameters were similar to those reported in the literature. Thus, the use of propafenone may be considered appropriate for SVT treatment in children.