Correlation of CT angiographic pulmonary artery obstruction scores with right ventricular dysfunction and clinical outcome in patients with acute pulmonary embolism

Pulmonary artery obstruction index is not associated with elevated heart-type fatty acid-binding protein and mortality in patients with pulmonary embolism at intermediate risk: short-term mortality results

“…The study performed by Araoz et al (11) is the largest study in this field, and included 1193 patients with CT scans positive for PE. Recently, Apfaltrer et al (24) also found that obstruction scores are not correlated to adverse clinical outcome in patients with acute PE. It has been postulated that PA obstruction scores can be an indicator of the severity of a current PE episode or treatment effectiveness, but cannot be used as a predictor of death (10,11,13).…”

The efficacy of CT for detection of right ventricular dysfunction in acute pulmonary embolism, and comparison with cardiac biomarkers

“…It has been shown that correlation of ECHO and CT for detection of RVD is good, despite the different output and measurement methods of the two techniques [9,13,[19][20][21][22][23][24][25]. In a study in which 103 hemodynamically stable PE patients were evaluated for the presence of RVD and pulmonary hypertension (PHT), Golpe et al [9] identified RVD in 24.5 % of cases and PHT in 19.6 %.…”

Adding insult to injury: autoimmune haemolytic anaemia complicated by pulmonary embolism

“…This finding is paradoxical, as the clot burden, predicted by CT angiographic pulmonary artery obstruction scores, is thought to correlate with RV dysfunction in acute PE. Pulmonary artery obstruction scores have not, however, been found to correlate with clinical outcome, which limits its usefulness in clinical practice 2 3…”