RESUMO
Ventricular tachycardia may be caused by temporary cardiac pacing, especially when there is acute inferior myocardial infarction with significant right ventricular extension. Correction of hypoxemia, electrolyte imbalance, and drug excess, and the use of a unipolar lead with proper sensing and pacing settings may prevent this complication.
Assuntos
Marca-Passo Artificial/efeitos adversos , Taquicardia/etiologia , Idoso , Cateteres de Demora/efeitos adversos , Eletrocardiografia , Feminino , Ventrículos do Coração/fisiopatologia , HumanosRESUMO
We evaluated the polyethylene glycol precipitation test (Gastroenterology 83: 378-382, 1982), looking for macroamylase in the serum of 66 patients whose values for serum amylase were above normal. Three patients (4.5%) were identified by this method as having macroamylase , and this was confirmed by gel-filtration chromatography and electrophoresis. We find this to be the test of choice as a screening procedure for macroamylasemia because of its speed, simplicity, and apparent reliability. Diagnosis of macroamylasemia is important in preventing needless treatment and investigation for pancreatitis.
