Venous Thromboembolism in Patients Hospitalized for Lung Transplantation

Abstract

Venous thromboembolism (VTE) is an important complication after solid organ transplantation. We sought to evaluate any association between VTE and in-hospital death, length of hospitalization, and total hospital charges for patients hospitalized for lung transplantation (LT). We retrospectively reviewed the Nationwide Inpatient Sample to identify patients hospitalized for LT from 2000 to 2011. We evaluated the incidence of VTE during hospitalization for LT, risk factors for VTE, and the association between VTE and in-hospital death, length of hospitalization, and total hospital charges. Of the 16,318 adults hospitalized for LT during the study period, VTE developed in 1,029 (6.3%), including 854 (5.4%) with deep vein thrombosis alone and 175 (1.1%) with pulmonary embolism. The factors associated with VTE included age older than 60 years (odds ratio [OR], 1.42; 95% confidence interval [CI], 1.03 to 1.94), female sex (OR, 0.61; 95% CI, 0.44 to 0.86), and receiving mechanical ventilation support for 96 hours or more (OR, 3.38; 95% CI, 2.49 to 4.58). The adjusted odds of in-hospital death in patients with pulmonary embolism was thrice as high as those without any VTE (OR, 3.40; 95% CI, 1.29 to 8.99). Among LT patients with VTE, the average length of hospitalization was 38% (95% CI, 27% to 48%) longer, and the total cost of hospitalization was 23% (95% CI, 16% to 30%) higher compared with LT patients without VTE. VTE is a relatively frequent complication among LT recipients and is associated with increased death, total hospital length of stay, and hospital charges. These data indicate that prophylaxis practices should be reexamined to reduce this preventable complication.