How do treatment strategies and outcomes differ between high-risk and intermediate-high-risk pulmonary embolism patients managed by a Pulmonary Embolism Response Team?
Despite the frequent use of advanced reperfusion therapies in high-risk pulmonary embolism, in-hospital mortality remains high at 37.5%.
BACKGROUND: Multidisciplinary Pulmonary Embolism Response Teams (PERTs) were established to individualize the treatment of high-risk (HR) and intermediate-high-risk (IHR) pulmonary embolism (PE) patients, which pose a challenge in clinical practice. METHODS: We retrospectively collected the data of all HR and IHR acute PE patients consulted by PERT CELZAT between September 2017 and October 2022. The patient population was divided into four different treatment methods: anticoagulation alone (AC), systemic thrombolysis (ST), surgical embolectomy (SE), and catheter-directed therapies (CDTx). Baseline clinical characteristics, risk stratification, PE severity parameters, and treatment outcomes were compared between the four groups. RESULTS: Of the 110 patients with HR and IHR PE, 67 (61%) patients were treated with AC only, 11 (10%) with ST, 15 (14%) underwent SE, and 17 (15%) were treated with CTDx. The most common treatment option in the HR group was reperfusion therapy, used in 20/24 (83%) cases, including ST in 7 (29%) patients, SE in 5 (21%) patients, and CTDx in 8 (33%) patients. In contrast, IHR patients were treated with AC alone in 63/86 (73%) cases. The in-hospital mortality rate was 9/24 (37.5%) in the HR group and 4/86 (4.7%) in the IHR group. CONCLUSIONS: The number of advanced procedures aimed at reperfusion was substantially higher in the HR group than in the IHR PE group. Despite the common use of advanced reperfusion techniques in the HR group, patient mortality remained high. There is a need further to optimize the treatment of patients with HR PE to improve outcomes.
Pietrasik et al. (Mon,) studied this question.