Course: Pseudotachycardia in a Teenager With Recurrent Syncope
CME Credits: 1.00
Released: 2023-02-27
A teenager with a history of cardiomyopathy and recurrent syncope was admitted to the pediatric unit with a urinary tract infection. Levofloxacin was started along with outpatient medications of metoprolol and valsartan. The patient had symptomatic improvement of the urinary tract infection and was ready for discharge on day 3 after hospital admission. However, the patient lost consciousness suddenly and had seizurelike activities with urine incontinence. The patient regained consciousness with a blood pressure of 86/45 mm Hg and pulse oximetry of 95% on oxygen via nasal cannula after brief cardiopulmonary resuscitation. A 12-lead electrocardiogram (ECG) was urgently obtained and is shown in the . A bedside 2-dimensional echocardiography revealed biatrial enlargement, left ventricular hypertrophy with ejection fraction of 47%, and no pericardial effusion.
To identify the key insights or developments described in this article
View Full Course