OBJECTIVE: To determine the relationship between extracellular levels of pH, Ca2+ and Mg2+ and schizophrenia, regarding the glutamate N-metyl-D-Aspartate (NMDA) receptor-hypofunction theory as primary mechanism in the etiology of schizophrenia. MATERIAL AND METHODS: Cerebrospinal fluid (CSF) pH, Ca2+ and Mg2+ levels were measured in 10 schizophrenic inpatients with antipsychotic treatment diagnosed according to the ICD-10, at the Hospital Rebagliati Mental Health Department in Lima, Peru, and 7 non psychiatric patients. RESULTS: pH levels from schizophrenic group (6,95 ± 0,06) wese significantly lower than control group ones (7,30 ± 0,12) (difference: 0,35 units) (p <0,005). Ca2+ levels were 0,14 mg/dL lower in schizophrenic group (4,44 ± 0,47 mg/dL) than in control group (4,58 ± 0,21 mg/dL) (p >0,05). Mg2+ leves were also lower in the schizophrenic group (1,61 ± 0,67 mg/dL) c...

Objective. To describe the quality of life in patients with idiopathic ventricular arrhythmias treated at the Instituto Nacional Cardiovascular INCOR in Lima -Peru. Materials and methods. Analytical and cross-sectional study of patients with idiopathic ventricular arrhythmias treated by 3D ablation or antiarrhythmic therapy between July 2017 and December 2019 to whom the SF-36 health questionnaire was applied to assess quality of life related to health. Results. Fifty-two patients with idiopathic ventricular arrhythmias were included (34 underwent 3D ablation, and 18 underwent antiarrhythmic therapy only). The percentage of recurrence (14.7% vs. 50%, p=0.01) and adverse effects (0% vs. 22.2%, p=0.011) were lower in the 3D ablation group compared to the antiarrhythmic group. The mean standardized scores obtained from the Spanish version of the Health Survey SF-36v2, applied to the 3D abla...

Interatrial septal occlusion devices hinder the transseptal approach for atrial fibrillation ablation,making it necessary to have imaging methods that safely guide transseptal puncture, such as intracardiac echocardiography (ICE). We describe the case of a 49-year-old patient with symptomatic paroxysmal atrial fibrillation, refractory to antiarrhythmic drugs, wearing an interatrial septal occlusion device, with a previous unsuccessful ablation attempt. Atrial fibrillation ablation was performed using the Carto V7 3D mapping system,  the transseptal puncture was guided by ICE, and the procedure was successful. This case report highlights the importance of multimodality imaging to achieve successful and effective transseptal puncture for atrial fibrillation ablation in patients with interatrial septal occlusion devices.

Los dispositivos de oclusión del septo interatrial dificultan el abordaje transeptal para la ablación de la fibrilación auricular, por lo que es necesario contar con métodos de imagen que guíen con seguridad la punción transeptal, como la ecocardiografía intracardíaca (EIC). Se describe el caso de un paciente de 49 años con fibrilación auricular paroxística sintomática, refractaria a fármacos antiarrítmicos, portador de un dispositivo de oclusión del septo interatrial, con intento previo de ablación fallido. La ablación de la fibrilación auricular se realizó con el sistema de mapeo 3D Carto V7, la punción transeptal fue guiada por EIC y el procedimiento fue exitoso. Este reporte de caso resalta la importancia de la multimodalidad en imágenes, con el fin de se logre una punción transeptal exitosa y eficaz para llevar a cabo la ablación de fibrilación auricular en p...

Objetivo. Describir la calidad de vida en pacientes con arritmias ventriculares idiopáticas, tratados en el Instituto Nacional Cardiovascular INCOR de Lima-Perú. Materiales y métodos. Estudio analítico y transversal de pacientes con arritmias ventriculares idiopáticas, tratados mediante ablación 3D o terapia antiarrítmica entre julio 2017 y diciembre de 2019 a quienes se aplicó el cuestionario de salud SF-36 para evaluar la calidad de vida relacionada con la salud. Resultados. Se incluyeron a 52 pacientes con arritmias ventriculares idiopáticas (34 fueron a ablación 3D y 18 solo terapia antiarrítmica). El porcentaje de recurrencia (14,7% vs. 50%, p=0,01) y efectos adversos (0% vs. 22,2%, p=0,011) fueron menores en el grupo ablación 3D comparado con el grupo antiarrítmico. Los puntajes estandarizados promedios obtenidos de la versión española del cuestionario de salud SF-36...

Objective. To describe the quality of life in patients with idiopathic ventricular arrhythmias treated at the Instituto Nacional Cardiovascular INCOR in Lima -Peru. Materials and methods. Analytical and cross-sectional study of patients with idiopathic ventricular arrhythmias treated by 3D ablation or antiarrhythmic therapy between July 2017 and December 2019 to whom the SF-36 health questionnaire was applied to assess quality of life related to health. Results. Fifty-two patients with idiopathic ventricular arrhythmias were included (34 underwent 3D ablation, and 18 underwent antiarrhythmic therapy only). The percentage of recurrence (14.7% vs. 50%, p=0.01) and adverse effects (0% vs. 22.2%, p=0.011) were lower in the 3D ablation group compared to the antiarrhythmic group. The mean standardized scores obtained from the Spanish version of the Health Survey SF-36v2, applied to the 3D abla...

Interatrial septal occlusion devices hinder the transseptal approach for atrial fibrillation ablation,making it necessary to have imaging methods that safely guide transseptal puncture, such as intracardiac echocardiography (ICE). We describe the case of a 49-year-old patient with symptomatic paroxysmal atrial fibrillation, refractory to antiarrhythmic drugs, wearing an interatrial septal occlusion device, with a previous unsuccessful ablation attempt. Atrial fibrillation ablation was performed using the Carto V7 3D mapping system,  the transseptal puncture was guided by ICE, and the procedure was successful. This case report highlights the importance of multimodality imaging to achieve successful and effective transseptal puncture for atrial fibrillation ablation in patients with interatrial septal occlusion devices.

Objective. To describe the initial experience in ablation of cardiac arrhythmias using 3D mapping at the Instituto Nacional Cardiovascular INCOR (Lima, Peru). Methods. A retrospective descriptive study was carried out. During February 2020, data was collected from the medical records of all patients in whom ablation was performed using 3D mapping from July 2017 to December 2019. This procedure was performed in patients with symptomatic arrhythmia refractory to antiarrhythmic therapy. Results. Data were collected from 123 patients (median age: 46 years, 64.2% male), who had a median time of illness of 6 years. Among the arrhythmias treated, 19% had atrial fibrillation, 17.5% atrial tachycardia, 17.5% idiopathic ventricular arrhythmias, 16.6% Wolf Parkinson White syndrome / Atrioventricular reentrant tachycardia, 11.1% ventricular arrhythmias of the His-Purkinje conduction system, 9.5% sca...

Objetivo. Describir la experiencia inicial en ablación de arritmias cardiacas empleando mapeo 3D en el Instituto Nacional Cardiovascular INCOR (Lima-Perú). Materiales y métodos. Estudio descriptivo, retrospectivo, donde se recolectaron datos de historias clínicas de todos los pacientes en los cuales se realizó ablación empleando mapeo 3D, desde julio de 2017 a diciembre de 2019. Este procedimiento se realizó a pacientes sintomáticos y refractarios a terapia antiarrítmica. Resultados. Se recolectaron datos de 123 pacientes (mediana de edad: 46 años, 64,2% varones), con una mediana del tiempo de enfermedad de 6 años. Entre las arritmias tratadas 19% tuvieron fibrilación auricular; 17,5% taquicardia auricular; 17,5% arritmias ventriculares idiopáticas; 16,6% síndrome de Wolf Parkinson White/taquicardia por reentrada auriculoventricular; 11,1% arritmias ventriculares del sistem...

Abstract. This article summarizes the clinical practice guide (CPG) for the management of patients with atrial fibrillation (AF) in the Social Security of Peru (EsSalud). Objective. To provide clinical recommendations based on evidence for the management of patients with AF in EsSalud. Methods. A CPG for the management of patients with AF in EsSalud was developed. To this end, a guideline development group (GDG) was established, including medical specialists and methodologists. The GDG formulated 9 clinical questions to be answered by this CPG. Systematic searches of systematic reviews and ,when it was considered pertinent, primary studies were conducted in Medline during 2017. The evidence to answer each of the posed clinical questions was selected. The quality of the evidence was evaluated using the Grading of Recommendations Assessment, Developm...

Introducción. El presente artículo resume la guía de práctica clínica (GPC) para el manejo de pacientes con fibrilación auricular (FA) en el Seguro Social del Perú (EsSalud). Objetivo. Proveer recomendaciones clínicas basadas en evidencia para el manejo de pacientes con FA en EsSalud. Métodos. Se conformó un grupo elaborador (GEG) que incluyó médicos especialistas y metodólogos. El GEG formuló 9 preguntas clínicas a ser respondidas por la presente GPC. Se realizó búsquedas sistemáticas de revisiones sistemáticas y ,cuando fue considerado pertinente, estudios primarios en Medline durante el 2017. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. La certeza de la evidencia fue evaluada usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó...

Objective. To describe the initial experience in ablation of cardiac arrhythmias using 3D mapping at the Instituto Nacional Cardiovascular INCOR (Lima, Peru). Methods. A retrospective descriptive study was carried out. During February 2020, data was collected from the medical records of all patients in whom ablation was performed using 3D mapping from July 2017 to December 2019. This procedure was performed in patients with symptomatic arrhythmia refractory to antiarrhythmic therapy. Results. Data were collected from 123 patients (median age: 46 years, 64.2% male), who had a median time of illness of 6 years. Among the arrhythmias treated, 19% had atrial fibrillation, 17.5% atrial tachycardia, 17.5% idiopathic ventricular arrhythmias, 16.6% Wolf Parkinson White syndrome / Atrioventricular reentrant tachycardia, 11.1% ventricular arrhythmias of the His-Purkinje conduction system, 9.5% sca...