Author: Kumar, Arun; Moadel, Renee M; Haramati, Linda B; Ye, Kenny; Freeman, Leonard M; Zuckier, Lionel S
Title: Experience with a perfusion-only screening protocol for evaluation of pulmonary embolism during the COVID-19 pandemic surge. Cord-id: 8cctbr1k Document date: 2021_8_5
ID: 8cctbr1k
Snippet: The purpose of this study is to evaluate a pulmonary embolism (PE) perfusion-only screening (POS) protocol, introduced during the pandemic surge. Subjects without dense parenchymal lung opacities were studied; those with <1 segmental perfusion defect were considered without PE while patients exhibiting ≥1 defects were indeterminate, mandating additional examinations to determine final diagnosis. Methods: We analyzed demographic information, clinical data, imaging findings and follow-up from el
Document: The purpose of this study is to evaluate a pulmonary embolism (PE) perfusion-only screening (POS) protocol, introduced during the pandemic surge. Subjects without dense parenchymal lung opacities were studied; those with <1 segmental perfusion defect were considered without PE while patients exhibiting ≥1 defects were indeterminate, mandating additional examinations to determine final diagnosis. Methods: We analyzed demographic information, clinical data, imaging findings and follow-up from electronic records in coronavirus disease, 2019 (COVID-19) patients who underwent lung scintigraphy during the 60-day study period. Results: 53 studies were performed in 17 COVID-19 positive and 36 COVID-19 negative patients. The POS protocol efficiently excluded PE in 79% of cases; the remaining 21%, indeterminate for PE, were generally referred for alternative testing or directly anticoagulated. In patients with negative POS studies there was a very low mortality prior to hospital discharge (1/42), and normal follow up studies when performed (6/6). Conclusion: The POS protocol, implemented during the COVID-19 surge, efficiently and safely excluding PE in 79% of patients.
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