Morphologic characteristics of central pulmonary thromboemboli predict haemodynamic response in massive pulmonary embolism.

Abstract:

OBJECTIVE:On hospital admission, the morphology of the central pulmonary artery thromboemboli is an independent predictor of 30-day mortality in patients with massive pulmonary embolism (MPE). This may be due to the differential susceptibility of thromboemboli to thrombolysis. The aim of this study was to assess haemodynamic response to treatment in patients with MPE and morphologically different thromboemboli. DESIGN:Prospective observational study. SETTING:An 11-bed closed medical ICU at a 860-bed community general hospital. PATIENTS:Twelve consecutive patients with shock or hypotension due to MPE and central pulmonary thromboemboli detected by transesophageal echocardiography who were treated with thrombolysis between January 2000 through April 2002. PROCEDURES:Patients were divided into two groups according to the characteristics of detected central pulmonary thromboemboli: group 1, thrombi with one or more long, mobile parts; and group 2, immobile thrombi. Urokinase infusion was terminated when mixed venous oxygen saturation was stabilized above 60% for 15 min. RESULTS:At 2 h, the total pulmonary vascular resistance index was reduced more in group 1 than group 2 [from 27+/-12 mmHg/(l.min.m(2)) to 14+/-6 mmHg/(l.min.m(2)) (-52%) vs 27+/-8 mmHg/(l.min.m(2)) to 23+/-10 mmHg/(l.min.m(2)) (-15%), respectively, P=0.04]. In group 1 thrombolysis was terminated earlier than group 2 (89+/-40 min vs 210+/-62 min, respectively, P= 0.0024). The cumulative dose of urokinase used in group 1 was lower than group 2 (1.7+/-0.3 M i.u. vs 2.7+/-0.5 M i.u., respectively, P= 0.023). CONCLUSION:Haemodynamic stabilization is achieved faster in patients with mobile central thromboemboli detected by transesophageal echocardiography during MPE.

journal_name

Intensive Care Med

journal_title

Intensive care medicine

authors

Podbregar M,Voga G,Krivec B

doi

10.1007/s00134-004-2314-5

keywords:

subject

Has Abstract

pub_date

2004-08-01 00:00:00

pages

1552-6

issue

8

eissn

0342-4642

issn

1432-1238

journal_volume

30

pub_type

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