Frey, B Pulsus paradoxus indicating heart failure in paroxysmal supraventricular tachycardia: easy detection by pulse oximetry. [electronic resource] - Intensive care medicine Mar 1999 - 333-4 p. digital Publication Type: Case Reports; Comment; Letter ISSN: 0342-4642 Standard No.: 10.1007/s001340050848 doi Subjects--Topical Terms: Blood PressureDiagnosis, DifferentialHeart Failure--diagnosisHumansInfant, NewbornMaleOximetryTachycardia, Supraventricular--complications