Effect of cooling the anterior chest wall on the T wave of the electrocardiogram

摘要: Abstract Electrocardiographic records were obtained in sixteen subjects, with apparently normal hearts, before and after cooling the precordial region of chest wall by placing an ice bag on it for five to six minutes. Cooling gave rise depression T wave Leads V 1 4 . This was associated, most cases, increase positivity aV F 8 The T-wave changes resulting from were, main, opposite pattern those drinking iced water. More marked subjects a thinner lower pelidisi as compared thicker higher pelidisi. lasted about twenty-five ventricular gradient shifted, average, slightly (about 2°) left. not related blood pressure which occurred most, but all, result wall. Q-T interval markedly altered. right side, away heart region, or abdominal wall, did give electrocardiographic changes, although pressure.