Thrombosis of the superior vena cava is not frequent, but its appearance makes difficult the way for the implantation of pacemakers and defibrillators. There are alternatives when endovascular and epicardium vias cannot be used. However, some implantations of catheters of defibrillators via transatrial through minimal thoracotomy with good results at long-term and with an adequate threshold of ...

BACKGROUND Implantable transvenous cardioverter-defibrillators offer a significant opportunity to decrease procedural morbidity and medical costs in the care of patients with life-threatening ventricular arrhythmias who otherwise would have required a sternotomy or thoracotomy for device insertion. The purpose of this study was to examine prospectively the safety, efficacy, and limitations asso...

I am concerned about the implications of the Editorial by Drs. Lown and Axelrod which appeared in the October 1972 issue of Circulation. Although the authors rightfully point out the numerous technical problems still to be overcome in the development of such defibrillators, their conclusions in the last three paragraphs indicate a heavy bias in favor of "practical research." Although Dr. Lown h...

N Engl J Med 2003;349:1836-47. Copyright © 2003 Massachusetts Medical Society. espite advances in emergency medical systems and in techniques of resuscitation, sudden death from cardiac arrest remains a major public health problem. Most persons who have an out-of-hospital cardiac arrest do not survive. 1,2 Those who are resuscitated may have severe, long-term cognitive impairment and motor impa...

2. Ragsdale BD: Anitschkow nuclear structure in cardiac metastases. Am J Clin Pathol 1973;59:798-802 3. Masani F, Iwanaga T, Shibata A, Fujita T: Immunohistochemical demonstration of S-100 protein in fibroblast-like cells of the guineapig heart. Arch Histol Jpn 1986;49:117-127 4. Kodama M, Zhang S, Hanawa H, Shibata A: Immunohistochemical characterization of infiltrating mononuclear cells in th...

introduction: nowadays, more than 10,000 different types of medical devices can be found in hospitals. this way, medical electrical equipment is being employed in a wide variety of fields in medical sciences with different physiological effects and measurements. hospitals and medical centers must ensure that their critical medical devices are safe, accurate, reliable and operational at the requ...

Introduction: Nowadays, more than 10,000 different types of medical devices can be found in hospitals. This way, medical electrical equipment is being employed in a wide variety of fields in medical sciences with different physiological effects and measurements. Hospitals and medical centers must ensure that their critical medical devices are safe, accurate, reliable and operational at the requ...

Electrical defibrillation is the only effective therapy for cardiac arrest caused by ventricular fibrillation (VF) [1, 2] or pulseless ventricular tachycardia (VT). Scientific evidence to sup‐ port early defibrillation is overwhelming [3-5], being delay from collapse to delivery of the first shock the single most important determinant of survival [6, 7]. If defibrillation is deliv‐ ered promptl...