Asymptomatic bradycardia as a manifestation of intermediate high-risk pulmonary embolism

Derek Oh 1, *, Athena Dhaliwal 1, Blerina Asllanaj 1 and Farzad Majidi 2

1 Department of Internal Medicine, HCA Healthcare; MountainView Hospital, Las Vegas, NV, USA.
2 Department of Cardiology, HCA Healthcare; MountainView Hospital, Las Vegas, NV, USA.
 
Case Study
World Journal of Advanced Research and Reviews, 2023, 19(01), 1428–1432
Article DOI: 10.30574/wjarr.2023.19.1.1487
 
Publication history: 
Received on 16 June 2023; revised on 25 July 2023; accepted on 27 July 2023
 
Abstract: 
Progressively worsening dyspnea as an initial manifestation of an intermediate high-risk pulmonary embolism (PE) is a readily reported life-threatening cardiac emergency. Atypical presentation of PE may make the initial diagnosis challenging and is often the reason it is missed by clinicians. A 60-year-old woman with asymptomatic bradycardia presented with shortness of breath and dizziness. On examination, she was noted to have a heart rate of 40 beats per minute (bpm) which slightly improved to 55 bpm after intravenous (IV) fluids were administered. A transthoracic echocardiogram (TTE) showed evidence of severe right ventricular strain. Chest computed tomography angiogram (CTA) confirmed PE. After percutaneous aspiration thrombectomy, she was transitioned to direct oral anticoagulant (DOAC) from a heparin infusion and discharged on oral anticoagulation. Notably, her hospital course was marked by labile cycles between normotension and hypertension, with blood pressures exceeding 200/100 mmHg. The possibility that hypertensive states may prevent hemodynamic deterioration and a resulting high-risk pulmonary embolism is considered in patients presenting with multiple risk factors for thromboembolism.
 
Keywords: 
Pulmonary; Embolism; Bradycardia; Hypertension; Intermediate; Risk
 
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