ABSTRACT
Relata-se o caso de uma criança com síndrome do QT longo congênito e Tetralogia de Fallot, submetidaa denervação simpática por videotoracoscopia, para controle de tempestades arrítmicas e diminuição do númerode choques do cardioversor-desfibrilador implantável...
We report the case of a child with congenital long QT syndrome and Tetralogy of Fallot submittedto sympathetic denervation by videolaparoscopy to control arrhythmic storms and decrease the number ofimplantable cardioversor-defibrillator chocks...
Subject(s)
Humans , Child , Arrhythmias, Cardiac/complications , Long QT Syndrome/therapy , Tetralogy of Fallot/therapy , Defibrillators, Implantable , Echocardiography , Electrocardiography, Ambulatory , Sympathectomy/nursingABSTRACT
PURPOSE: To assess the effectiveness of bipolar epicardial atrial pacing using an active fixation bipolar endocardial lead implanted on the atrial surface in an experimental model. METHODS: A total of ten Large White adult pigs underwent pacemaker implantation under general anesthesia. Atrial pacing and sensing parameters were obtained at the procedure, immediate postoperative period and on the 7th and the 30th postoperative in unipolar and bipolar configurations. RESULTS: All procedures were successfully performed. There were no perioperative complications and no early deaths. Atrial pacing and sensing parameters for both unipolar and bipolar modes remained stable throughout the study. We observed a progressive increase in atrial thresholds, ranging from 0.49 ± 0.35 (at implantation) to 1.86 ± 1.31 volts (30th postoperative day), in unipolar mode. Atrial impedance measurements decreased slightly over time, ranging from 486.80 ± 126.35 Ohms (at implantation) to 385.0 ± 80.52 Ohms (30th postoperative day). Atrial sensing measures remained stable from the immediate postoperative period until the end of the study. CONCLUSION: The bipolar active fixation endocardial lead implanted epicardially can provide stable conditions of pacing and sensing parameters throughout the postoperative follow-up.
Subject(s)
Cardiac Pacing, Artificial/methods , Electrodes, Implanted , Equipment Design/methods , Heart Atria/surgery , Pacemaker, Artificial , Steroids/administration & dosage , Animals , Heart Atria/physiopathology , Operative Time , Postoperative Period , Reproducibility of Results , Surface Properties , Swine , Time Factors , Treatment OutcomeABSTRACT
PURPOSE: To assess the effectiveness of bipolar epicardial atrial pacing using an active fixation bipolar endocardial lead implanted on the atrial surface in an experimental model. METHODS: A total of ten Large White adult pigs underwent pacemaker implantation under general anesthesia. Atrial pacing and sensing parameters were obtained at the procedure, immediate postoperative period and on the 7th and the 30th postoperative in unipolar and bipolar configurations. RESULTS: All procedures were successfully performed. There were no perioperative complications and no early deaths. Atrial pacing and sensing parameters for both unipolar and bipolar modes remained stable throughout the study. We observed a progressive increase in atrial thresholds, ranging from 0.49 ± 0.35 (at implantation) to 1.86 ± 1.31 volts (30th postoperative day), in unipolar mode. Atrial impedance measurements decreased slightly over time, ranging from 486.80 ± 126.35 Ohms (at implantation) to 385.0 ± 80.52 Ohms (30th postoperative day). Atrial sensing measures remained stable from the immediate postoperative period until the end of the study. CONCLUSION: The bipolar active fixation endocardial lead implanted epicardially can provide stable conditions of pacing and sensing parameters throughout the postoperative follow-up.
Subject(s)
Animals , Cardiac Pacing, Artificial/methods , Electrodes, Implanted , Equipment Design/methods , Heart Atria/surgery , Pacemaker, Artificial , Steroids/administration & dosage , Heart Atria/physiopathology , Operative Time , Postoperative Period , Reproducibility of Results , Surface Properties , Swine , Time Factors , Treatment OutcomeABSTRACT
Objetivo: este artigo traça um perfil epidemiológico dos pacientes intoxicados porsubstâncias exógenas, de maio a agosto de 2006, no Pronto-Socorro do Hospital das ClínicasSamuel Libânio (HCSL). Pacientes e Métodos: foi aplicado um questionário paracoleta de dados sociodemográficos e clínicos dos pacientes com intoxicação exógena.Os pacientes com menos de 13 anos foram excluídos dessa análise. As variáveis analisadasforam gênero, agente, motivo da intoxicação, tabagismo, uso de drogas ilícitas,etilismo, religião, tempo decorrido entre a intoxicação e o atendimento médico, históriapatogênica pregressa e desfecho do paciente. Como método de análise estatística,as variáveis foram descritas pelas freqüências relativa e absoluta, com discriminaçãoindividualizada. Resultados: foram registradas 46 intoxicações exógenas, a maioriaocorrida no gênero feminino. A média de idade predominante foi de 13 a 20 anos.Os benzodiazepínicos e organofosforados foram as substâncias mais encontradas.Conclusão: o perfil dos pacientes intoxicados encontrados no HCSL coincide com odescrito pela literatura, sendo os benzodiazepínicos e os organofosforados os agentesmais utilizados, alta prevalência no sexo feminino e faixa etária predominante entre 13e 20 anos. Estes achados também enfatizam a nacessidade de se criarem novos centrosde controle de intoxicação, de se criarem pacotes mais seguros para drogas, produtosquímicos e atividades aducativas a fim de modificar esta epidemiologia.
