A 35-year-old woman with no past medical history presented to her local emergency room with 2 days of fevers, chills, and myalgias. She was febrile with a temperature of 102°F, blood pressure of 95/60 (72) mm Hg, heart rate of 110 bpm, respiratory rate of 20 breaths per minute, and an oxygen saturation of 100% on 2 L oxygen. The physical examination was notable for cool extremities, clear lungs, and tachycardic heart sounds with no s3, s4, or friction rub. The patient decompensated quickly and developed hypotension, requiring rapid uptitration of norepinephrine to 12 μg·kg Dr Uriel: Interpretation of the clinical course so far: A young woman with no medical history presents with an infectious syndrome and rapidly deteriorates. At this point, one must consider the different processes that would result in such a dramatic clinical picture. It is important to begin to rapidly rule out life-threatening processes and to perform the appropriate clinical testing in a manner that will not delay treatment. Given the increasing hypoxia, an assessment of the lung parenchyma would be beneficial at this point. A computed tomographic angiogram may be considered to simultaneously examine for an infectious process, pulmonary edema, and pulmonary embolism. In addition, cardiac assessment would also be important at this point, particularly in the setting of hypotension and hypoxia. Hypotension can be divided into different types: secondary to systolic dysfunction, vasodilation, or hypovolemia. A transthoracic echocardiogram would help further elucidate the cardiac process, particularly with the assessment of ventricular function and size. Left ventricular (LV) dysfunction would be expected if there was direct cardiac involvement such as coronary disease or myocardial inflammation, whereas a hyperdynamic ventricle would be expected in a state of vasodilation or hypovolemia. Given the abnormal cardiac troponin, it is important to rule out epicardial coronary ischemia. A coronary angiogram should be performed to rule out an acute coronary syndrome, which, in this age group, would most likely be related to spontaneous coronary artery dissection or thrombosis resulting from a hypercoagulable state. Myocarditis should also be considered, particularly in the setting of a prodrome of fevers and myalgias.
Patient presentation (continued):A computed tomographic angiogram was performed that was negative for pulmonary embolism and showed small bilateral pleural effusions. A bedside transthoracic echocardiogram showed a large pericardial effusion, a dilated inferior vena cava, and right atrial and right ventricular (RV) diastolic collapse. The LV ejection fraction was visually estimated to be 45% to 50%.Simultaneous right and left heart catheterization showed elevated filling pressures and is summarized in Table 1. The coronary angiogram was normal.Dr Uriel: With a negative coronary angiogram and negative computed tomographic angiogram, the catheterization of the right side of the heart and echocardiogram should be further evaluated. With a la...