• Hye-Rin Kang, Tae-Hyung Kim, Chun Kee Chung, and Chang-Hoon Lee.
• Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro Jongno-Gu, Seoul, 03080, Republic of Korea.
• J. Thromb. Thrombolysis. 2020 Apr 1; 49 (3): 468-474.

AbstractThe prognosis of pulmonary cement embolism found incidentally on chest radiography after vertebroplasty has been rarely investigated. This study was performed to elucidate the impact of incidentally found pulmonary cement embolism on all-cause mortality. Patients with pulmonary cement embolism diagnosed using chest radiography between 2008 and 2014 at one tertiary referral hospital were included. Their mortality risk was compared to that of randomly selected, age-, sex-, and year-matched patients without pulmonary cement embolism (ratio, 1:10) by using Kaplan-Meier estimates and covariate-adjusted Cox proportional regression analysis. The study included 11 patients with pulmonary cement embolism and 110 patients without pulmonary cement embolism. The patients showed no significant intergroup differences in baseline characteristics, except comorbid heart failure. During a mean follow-up duration of 1.7 ± 1.6 years, five patients (45.5%) with pulmonary cement embolism and 60 (50.0%) without pulmonary cement embolism died, mostly because of underlying malignancy. Although the patients with pulmonary cement embolism were not treated, they did not show a higher mortality risk than did those without pulmonary cement embolism (adjusted hazard ratio, 1.10; 95% confidence interval, 0.43-2.85). Subgroup analyses showed similar results. Incidentally found pulmonary cement embolism had no significant impact on all-cause mortality.

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