A 74-year-old female with a cardiac history underwent placement of a cardiac pacemaker at her community hospital due to sick sinus syndrome. The day after being discharged home (a Saturday), she returned to the hospital by ambulance, complaining of severe substernal chest pain at rest radiating from shoulder to shoulder, accompanied by mild shortness of breath and lightheadedness. She was given nitroglycerine sublingual with some improvement, and she became pain free after IV morphine. The on-call cardiologist (a moonlighting Cardiology fellow who was reached by phone at another hospital) recommended admission to the ICU and treatment for unstable angina, including aspirin, heparin, and nitroglycerine.
Approximately four hours later, the covering cardiologist saw the patient. Her vital signs had stabilized, and labs were normal. The chest X-ray suggested hypertrophic non-obstructive cardiomyopathy. The differential diagnoses included unstable angina and aortic dissection. The plan called for an echocardiogram in the morning due to findings on the chest X-ray. The hospital had no echocardiogram facilities after hours. The possibility of transfer to a tertiary hospital was discussed—but decided against, as the patient appeared stable and her primary cardiologist was at this hospital.
Later that night the patient was found writhing in bed with difficulty breathing. She was speaking in Portuguese, which her family said indicated she was in severe pain. Upon exam by the covering physician, the differential diagnoses now included: pericardial effusion (due to complication from pacemaker insertion); aortic dissection; ischemia; congestive heart failure; and pulmonary embolism. The Heparin and Plavix were discontinued, and repeat tests (chest X-ray, arterial blood gas) were reassuring. A CT scan was ordered but not done stat because the patient appeared to be more stable and was resting comfortably.
A moonlighting Infectious Disease fellow covering the ICU performed a limited echocardiogram that he thought might show a small effusion, but he was not expert in this procedure. On the phone with the on-call cardiologist, he reviewed all possible diagnoses, including pericardial effusion. The patient was not tachycardic and did not have pulsus paradox — both symptoms that would have suggested tamponade. It is unclear if the Infectious Disease fellow told the cardiologist that he did a limited echocardiogram. The cardiologist still considered aortic dissection; he planned to come in and do another echocardiogram early in the morning.
Approximately two hours later, the patient was found restless and moaning in Portuguese again, with worrisome vitals. The covering cardiologist came and performed an echocardiogram, which revealed a pericardial effusion. A discrepancy between the patient’s blood pressure in her right and left arms led the cardiologist to still suspect aortic dissection. He felt that, if the patient was having a dissection, then a tap for the effusion could result in death. He wanted to have back up surgeons available and to do the procedure in a cardiac cath lab—neither of which were available at this hospital.
The patient was eventually transferred to a tertiary care facility, where an emergency pericardiocentesis removed one liter of blood. Subsequently, she had a cardiac arrest; developed diffuse anoxia of the brain, went into a coma, and died four days later.