Right ventricular outflow tract resection for treatment of refractory ventricular tachycardia in a 2-year-old child.
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Biomedical subjects
Publications and source records attributed to M Silka.
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A variety of symptoms that accompany migraine in the child and adult are mediated by the autonomic nervous system. Significant effects on cardiac rhythm are uncommon, but can be life threatening. We describe a 3-year-old girl in whom migraine-associated vomiting precipitated cardiac asystole which was effectively treated with a cardiac pacemaker.
A review of the literature demonstrated that controversy exists as to whether anesthesia circle systems can be a source of transmission of bacteria to patients. The purpose of this study was to evaluate the use of one airflow filter (on the expiratory limb) versus two airflow filters (one on the inspiratory limb and one on the expiratory limb) in the prevention of bacterial migration in the anesthesia circle system, during general anesthesia, using semiquantitative analysis of the number of bacterial colony forming units (CFUs). This study consisted of two randomized groups receiving one or two airflow filters. Thirty-five volunteers participated in the study. At the conclusion of the surgical cases, a culture was taken of the anesthesia circle system. The cultures were read at 24 and 48 hours for the presence of CFUs. No CFUs were reported in either group. The results of the study were inconclusive. Therefore, the use of one airflow filter on the expiratory limb should remain the standard of care, pending additional research. Some practitioners may use a second airflow filter when there is a greater risk of infection, such as in the case of an immunocompromised patient. However, this study can neither support nor question the effectiveness of this practice.
The etiologies of sudden cardiac death following the surgical treatment of congenital heart defects remain uncertain. A young patient with prior repair of partial anomalous pulmonary venous return is presented, in whom brief episodes of a supraventricular tachyarrhythmia (rate 170/min) were documented to result in ventricular fibrillation. This unusual sequence may represent a basis for unexplained sudden cardiac death in other patients following atrial surgical procedures for the treatment of congenital heart disease.
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